Opening and closing mechanism, soft box and studio lamp

Abstract

The invention relates to the technical field of soft boxes, in particular to an opening and closing mechanism, a soft box and a studio lamp. The rotating body comprises a rotating ring and a rotating handle which are connected with each other, the middle shaft body is provided with a plurality of rotating joint assemblies and a power-assisted handle, the power-assisted handle is fixedly arranged at one end of the middle shaft body, and the rotating joint assemblies are arranged in the circumferential direction of the middle shaft body at intervals; each rotating joint assembly is rotatably arranged on the middle shaft body; the rotating ring is rotatably arranged on the middle shaft body in a sleeving mode, the inner wall of the rotating ring is provided with a linkage part, the linkage part abuts against part of the outer wall of each rotating joint assembly, and the linkage part drives the rotating joint assemblies to rotate relative to the middle shaft body; the rotating joint assembly can be connected with the supporting strip. According to the technical scheme, the opening and closing mechanism aims at improving the opening and closing efficiency of the soft box and reducing the use difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of soft boxes, and in particular to an opening and closing mechanism, a soft box and a studio lamp. Background Art

[0002] A softbox is an accessory for photographic equipment. When used with a studio light, it can make the light emitted softer and eliminate light spots and shadows on the photos taken. A softbox usually consists of a soft cloth, multiple support bars, a base, and other parts. Multiple support bars are connected to the periphery of the opening and closing mechanism, and the soft cloth is attached to the support bars. By rotating the base, the support bars can be opened and stored.

[0003] In the related art, the applicant found that when the support bar needs to be opened, the user needs to use multiple fingers to apply a large pressing force and pulling force to the base at the same time, and then the two arms rotate relative to each other to open the softbox, which makes it inconvenient to use. Summary of the invention

[0004] The main purpose of the present invention is to provide an opening and closing mechanism, aiming to improve the opening and closing efficiency of the soft box and reduce the difficulty of use.

[0005] To achieve the above-mentioned purpose, the opening and closing mechanism includes a central axis body and a rotating body; the rotating body includes a rotating ring and a rotating handle connected to each other, the central axis body is provided with a plurality of rotating joint components and a power-assisting handle, the power-assisting handle is fixedly arranged at one end of the central axis body, a plurality of rotating joint components are arranged at intervals along the circumferential direction of the central axis body, and each rotating joint component is rotatably arranged on the central axis body; the rotating ring is rotatably sleeved on the central axis body, the inner wall of the rotating ring is provided with a linkage part, the linkage part abuts against a part of the outer wall of each rotating joint component, and the linkage part drives the rotating joint component to rotate relative to the central axis body;

[0006] Wherein, the rotating joint assembly can be connected to the support bar.

[0007] In one embodiment of the present invention, the rotating handle is provided with a limit button, and a limit convex bone is provided at one end of the button close to the central axis body. The central axis body is provided with two limit bone grooves, and the two limit bone grooves are spaced apart along the outer edge of the central axis body; the limit convex bone can be rotatably inserted in any of the limit bone grooves.

[0008] In one embodiment of the present invention, the central axis body comprises an upper body and a lower body, a transition section between the upper body and the lower body is provided with a rotation groove, and the rotation ring is clamped in the rotation groove; each of the rotation joint components comprises an upper joint and a lower joint, the rotation end of the upper joint away from the lower joint is provided on the upper body, the free end of the upper joint is rotationally connected to the rotation end of the lower joint, the free end of the lower joint away from the upper joint is penetrated and exposed from the lower body, and the linkage part abuts against the outer wall of each upper joint;

[0009] The linkage part drives the free ends of the upper joints to rotate relatively close to each other, and the free end of each upper joint is linked to the free end of a lower joint to rotate relatively far away from each other, and the lower joint is used to connect the support bar.

[0010] In one embodiment of the present invention, the inner peripheral wall of the rotating ring is provided with a plurality of drive grooves arranged at intervals, each of the drive grooves constitutes the linkage part, and the bottom wall of each of the drive grooves abuts against the outer wall of one of the upper joints;

[0011] The direction of rotating the driving groove to drive the free ends of the upper joints to rotate relatively close to each other is defined as a first direction, and the depth of the driving groove gradually decreases in a direction opposite to the first direction.

[0012] In one embodiment of the present invention, the inner circumferential wall of the rotating ring is provided with a plurality of stop blocks adapted to the driving grooves, and each of the stop blocks is located between two adjacent driving grooves; the upper joint can abut against the stop blocks to stop and limit the rotation of the rotating body.

[0013] In one embodiment of the present invention, the upper body of the shaft is provided with a plurality of limiting channels, each of the upper joints is movably inserted in a limiting channel, and the limiting channel is connected to the rotation groove; each of the limiting channels has a first inclined wall and a first limiting wall, the first inclined wall and the first limiting wall are arranged in alignment along the radial direction of the upper body of the shaft, and the first inclined wall is arranged away from the central axis of the upper body of the shaft; the two side walls of the upper joint distributed along the radial direction of the upper body of the shaft can respectively abut the first inclined wall and the first limiting wall.

[0014] In one embodiment of the present invention, a limiting groove is provided on the side wall of the upper joint facing the first limiting wall, and a stop ridge is provided at the end of the first limiting wall close to the lower body of the shaft, and the limiting groove can accommodate and limit the stop ridge.

[0015] In one embodiment of the present invention, the upper joint is located on the upper body of the shaft and is provided with an upper slide groove, the upper slide groove is extended along the length direction of the upper joint, a first fixed shaft is inserted into the upper slide groove, and both ends of the first fixed shaft are respectively fixedly inserted into the inner circumferential wall of the limiting channel;

[0016] Wherein, when the first fixed shaft abuts against the end of the upper sliding groove away from the lower body of the shaft, the limiting groove accommodates and limits the stopping ridge.

[0017] In one embodiment of the present invention, the lower body of the shaft is provided with a plurality of avoidance channels, each of the avoidance channels corresponds to a limiting channel, and the avoidance channels are connected to the rotation groove; each of the lower joints is movably inserted in a second limiting channel.

[0018] In one embodiment of the present invention, a portion of the lower joint located at the lower body of the shaft is provided with a lower slide groove, the lower slide groove is extended along the length direction of the lower joint, a second fixed shaft is inserted into the lower slide groove, and both ends of the second fixed shaft are respectively fixedly inserted into the inner circumferential wall of the limiting channel;

[0019] When the upper joint is linked to the lower joint for rotation, the lower joint can move toward the second fixed axis so that the second fixed axis abuts against the end of the lower sliding groove away from the upper body of the axis.

[0020] In one embodiment of the present invention, a barb structure is provided at the free end of the lower joint, and the barb structure is bent away from the lower body of the shaft.

[0021] The present invention provides a soft box, which includes a soft light cloth, a plurality of support bars and the opening and closing mechanism. Each of the support bars is movably inserted in a rotating joint assembly, and the soft light cloth connects the plurality of support bars.

[0022] The present invention provides a studio light, which includes the soft box.

[0023] In the technical solution of the present invention, an opening and closing mechanism is applied to a soft light box, and the opening and closing mechanism has a rotatable rotating handle and a relatively fixed power-assisting handle, so that the user holds a handle with both hands respectively and can open and close the soft light box by applying a rotating force at will, wherein, in the process of rotating the handle, the linkage part of the rotating ring drives each rotating joint assembly abutting therewith to rotate, and in the process of rotating the rotating joint assembly, the free end of each rotating joint assembly away from the rotating ring moves toward or away from the central axis body, and at the same time, the support strip supporting the soft light cloth in the soft light box can be connected to the rotating joint assembly, and in the process of opening and closing, only a rotating force needs to be applied, and no force needs to be applied to other components, so that the support strip can be stored or expanded, the operation is simple, the opening and closing efficiency is greatly improved, and the opening and closing difficulty is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the opening and closing mechanism provided by the present invention;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of an embodiment of a rotating body provided by the present invention;

[0027] Figure 3 For along Figure 2 Sectional view along line AA;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of an embodiment of the central axis provided by the present invention;

[0029] Figure 5 For along Figure 4 Sectional view along the midline BB;

[0030] Figure 6 A schematic structural diagram of another embodiment of the central axis provided by the present invention;

[0031] Figure 7 A schematic diagram of the three-dimensional structure of an embodiment of a rotary joint assembly provided by the present invention;

[0032] Figure 8 This is a schematic diagram of the movement process of the opening and closing mechanism provided by the present invention.

[0033] Description of Figure Numbers:

[0034] 10. Central axis body; 11. Upper axis body; 11a. Limiting channel; 11a1. First inclined wall; 11a2. First limiting wall; 111. Stop convex bone; 12. Lower axis body; 12a. Avoiding channel; 10a. Limiting bone groove; 10b. Rotating groove; 20. Rotating body; 21. Rotating ring; 21a. Driving groove; 211. Stop block; 22. Rotating handle; 23. Limiting button; 231. Limiting convex bone; 30. Rotating joint assembly; 31. Upper joint; 31a. Limiting groove; 31b. Upper slide groove; 311. First fixed axis; 32. Lower joint; 32a. Lower slide groove; 321. Second fixed axis; 322. Barb structure; 33. Third fixed axis; 40. Power handle; 50. Support bar.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] See also Figure 1 The opening and closing mechanism includes a central axis body 10 and a rotating body 20; the rotating body 20 includes a rotating ring 21 and a rotating handle 22 connected to each other, the central axis body 10 is provided with a plurality of rotating joint assemblies 30 and a power-assisting handle 40, the power-assisting handle 40 is fixedly arranged at one end of the central axis body 10, and a plurality of rotating joint assemblies 30 are arranged at intervals along the circumferential direction of the central axis body 10, and each rotating joint assembly 30 is rotatably arranged on the central axis body 10; the rotating ring 21 is rotatably sleeved on the central axis body 10, and the inner wall of the rotating ring 21 is provided with a linkage part, the linkage part abuts against a part of the outer wall of each rotating joint assembly 30, and the linkage part drives the rotating joint assembly 30 to rotate relative to the central axis body 10; wherein, the rotating joint assembly 30 can be connected to the support bar 50.

[0040] In the technical solution of the present invention, an opening and closing mechanism is applied to a soft light box, and the opening and closing mechanism has a rotatable rotating handle 22 and a relatively fixed power-assisting handle 40. In this way, the user holds a handle with both hands respectively, and can open and close the soft light box by applying a rotating force. In the process of rotating the handle 22, the linkage part of the rotating ring 21 drives each rotating joint assembly 30 abutting therewith to rotate. In the process of rotating the rotating joint assembly 30, the free end of each rotating joint assembly 30 away from the rotating ring 21 moves toward or away from the central axis 10. At the same time, the support bar 50 in the soft light box that supports the soft light cloth can be connected to the rotating joint assembly 30. In the opening and closing process, only a rotating force needs to be applied, and no force needs to be applied to other components to achieve the storage or expansion of the support bar 50. The operation is simple, which greatly improves the opening and closing efficiency and reduces the difficulty of opening and closing.

[0041] The central axis 10 is the axis part of the soft box, and its end can be provided with a chuck or other connecting structure to fix it to the studio light. Please refer to the prior art and no unnecessary explanation is given here. The central axis 10 is used to install the rotating body 20 of the opening and closing structure, the rotating joint assembly 30 and other structures. A plurality of spatial virtual structures such as grooves, channels, holes, etc. for installing these structures are provided on the central axis 10, so that each structure can realize the required rotation, movement and other forms of movement. Specifically, four channel structures are provided at the outer edge of the central axis 10, and the four channel structures are arranged at intervals along the circumferential direction of the central axis 10, and extend along the length direction of the central axis 10 as a whole. Each channel structure is used to limit and accommodate a rotating joint assembly 30. So that the rotating joint assembly 30 can be moved and rotated, thereby driving the support bar 50 to rotate, and realizing the opening and closing of the soft light box; of course, the central axis 10 is also provided with a rotating slot for the rotating body 20 to rotate, and the rotating slot is arranged around the outer surface of the central axis 10, so that the rotating ring 21 of the rotating body 20 is clamped in the rotating slot, and the user can hold the rotating handle 22 and apply a rotating force to rotate the rotating ring 21 relative to the central axis 10. In the process of the rotating ring 21 rotating relative to the central axis 10, the linkage part on the inner wall of the rotating ring 21 can abut the rotating joint assembly 30 on the outer edge of the central axis 10, so that the support bar 50 can be rotated, thereby realizing the opening and closing of the soft light box.

[0042] In one embodiment, a rotating joint assembly 30 includes two upper and lower joints, the upper joint 31 and the lower joint 32 are arranged along the length direction of the central axis body 10, that is, the lower end of the upper joint 31 is connected to the upper end of the lower joint 32 through the third fixed axis 33, so that the lower joint 32 can be provided with a through channel for the support bar 50 to be inserted. At this time, the inner circumferential wall of the rotating ring 21 can be provided with a plurality of push protrusions, and the push protrusions can be fixed to the inner circumferential wall of the rotating ring 21 through detachable structures such as buckles and buckle points. The protrusion height of the push protrusion can be along the direction in which the soft box can be opened (refer to Figure 7The first direction in the middle) gradually becomes larger, so that, during the rotation of the rotating ring 21 relative to the upper joint 31, the pushing protrusion can apply a thrust to the upper joint 31 to move toward the center of the rotating ring 21. At the same time, the upper end of the upper joint 31 can be limited to the central axis 10 by the first top shaft, thereby realizing the rotation of the upper joint 31, that is, the upper end of the upper joint 31 is the rotating end, and the lower end is the free end. In this way, the rotation of the upper joint 31 can further drive the lower joint 32 to move, wherein the movement form of the lower joint 32 is to rotate along the rotation trajectory of the upper joint 31, and the movement form of the opening and closing mechanism is intuitively manifested as rotating the rotating handle 22, and the lower joint 32 rotates toward or away from the central axis 10, thereby driving the support bar 50 to be stored or spread out; in another embodiment, the rotating joint assembly 30 includes any number of even-numbered joint structures, and the joint structure at the lower end is provided with a channel structure for the support bar 50 to be inserted, so that the support bar 50 can also be stored or spread out.

[0043] In one embodiment of the present invention, see Figure 2 and Figure 3 The rotating handle 22 is provided with a limit button 23, and a limit convex bone 231 is provided at one end of the limit button 23 close to the central axis body 10. The central axis body 10 is provided with two limit bone grooves 10a, and the two limit bone grooves 10a are arranged at intervals along the outer edge of the central axis body 10; the limit convex bone 231 can be rotatably inserted into any limit bone groove 10a. Specifically, the limit button 23 includes a key cap, a key shaft, a return spring and a limit member. A limit groove whose shape is adapted to the key cap and for pressing the key cap is provided on the rotating handle 22. One end of the key shaft is connected to the key cap, and the other end passes through the groove wall of the limit groove. The return spring is sleeved on the key The axis is connected to the keycap and the groove wall of the limiting groove, the limiting piece is fixedly connected to the end of the key shaft that exposes the limiting groove, and a limiting convex bone 231 is formed at the end of the limiting piece away from the key shaft, so that pressing the keycap can drive the limiting convex bone 231 to move downward, and after pressing a certain stroke, the keycap can abut the groove wall of the limiting groove. At this time, the limiting convex bone 231 is lower than or flush with the limiting bone groove 10a of the central axis body 10, so that the locking state of the opening and closing mechanism can be released by pressing the button, and then both hands hold a handle respectively, and then the two hands are rotated relative to each other to complete the opening and closing of the soft light box, so as to use the soft light box or store the soft light box.

[0044] In one embodiment of the present invention, see Figure 4 and Figure 5The central axis body 10 includes an upper body 11 and a lower body 12, a transition section between the upper body 11 and the lower body 12 is provided with a rotation groove 10b, and a rotating ring 21 is clamped in the rotation groove 10b, wherein an assist handle 40 is provided at the end of the upper body 11, and the assist handle 40 can be detachably connected to the upper body 11 by plugging, clamping, screwing, etc., or can be integrated with the upper body 11 by injection molding or hot melt process. It is defined here that by setting the central axis body 10 in sections, the assist handle 40 and the rotating handle 22 can be staggered in the up and down directions, so that it is convenient for the user to hold the two handles and apply a rotational force; in this embodiment, each rotating joint assembly 30 includes an upper joint 31 and a lower joint 32, and the linkage portion abuts against the outer wall of each upper joint 31, and the upper joint 31 is away from the rotating end of the lower joint 32 The upper body 11 is arranged on the shaft, wherein the upper joint 31 can be connected to the upper body 11 through the shaft, so as to realize the rotation of the upper joint 31, or the upper part of the upper joint 31 can be made into a ball head structure, so as to be inserted into the upper body 11 of the shaft, so as to realize the rotation of the upper joint 31, which is not limited here. The free end of the upper joint 31 is rotatably connected to the rotating end of the lower joint 32 through the third fixed shaft 33, and the lower joint 32 is arranged away from the free end of the upper joint 31 and exposes the lower body 12 of the shaft; wherein the linkage part drives the free ends of each upper joint 31 to rotate relatively close, and the free end of each upper joint 31 links the free end of the lower joint 32 to rotate relatively far away, and the lower joint 32 is used to connect the support bar 50, so that when the upper joint 31 is rotated by the force of the linkage part, the lower joint 32 makes a corresponding movement with the upper joint 31. For details, please refer to Figure 7 In the process of the free end of the upper joint 31 rotating toward the center of the rotating ring 21, the upper joint 31 is driven by the third fixed axis 33 to move along the rotation trajectory of the upper joint 31, and the upper joint 31 as a whole presents an inclined movement, which is finally manifested as the free end of the upper joint 31 rotating, thereby driving the support bars 50 to expand away or retract closer.

[0045] In one embodiment of the present invention, the inner peripheral wall of the rotating ring 21 is provided with a plurality of spaced driving grooves 21a, each driving groove 21a forming a linkage part, and the bottom wall of each driving groove 21a abuts against the outer wall of an upper joint 31, wherein, see Figure 8 The direction in which the free ends of the upper joints 31 are driven to rotate relatively close to each other by the rotation driving groove 21a is defined as the first direction, and the groove depth of the driving groove 21a gradually decreases in the direction opposite to the first direction. In this way, there is no need to set up multiple structures that can drive the upper joints 31 to rotate. The inner circumferential wall of the rotating ring 21 can be used to complete more than 30 relative rotations of the rotating joint components. The structure is simple, and the material cost of the soft light box is greatly reduced.

[0046] Further, to achieve automatic rotation stop, please refer to Figure 2The inner circumferential wall of the rotating ring 21 is provided with a plurality of stop blocks 211 adapted to the driving grooves 21a, and each stop block 211 is located between two adjacent driving grooves 21a; the upper joint 31 can abut against the stop block 211 to stop the rotation of the limit rotating body 20. It can be understood that the opening and closing structure has a support bar 50 storage locking state and a support bar 50 stretching locking state. In the storage locking state, the limit button 23 is in a rebound position. At this time, the limit convex bone 231 is inserted into a limit bone groove 10a. At the same time, the upper joint 31 abuts against a stop block 211, then press the keycap to unlock the opening and closing mechanism, and then after rotating the rotating handle 22 to a certain angle, the upper joint 31 abuts against another stop block 211. At this time, the rotating handle 22 can no longer rotate, and then release the pressure on the keycap, and the limiting convex bone 231 rebounds to another limiting bone groove 10a, so that the opening and closing mechanism enters a stretched and locked state. In this way, the user does not need to visually observe the positions of the limiting convex bone 231 and the limiting bone groove 10a, and automatic stopping is achieved. At the same time, both ends of each driving groove 21a are a stop block 211 to achieve rotation prevention.

[0047] In one embodiment of the present invention, see Figure 5 The shaft body 11 is provided with a plurality of limiting channels 11a, each upper joint 31 is movably inserted in a limiting channel 11a, and the limiting channel 11a is connected to the rotation groove 10b; each limiting channel 11a has a first inclined wall 11a1 and a first limiting wall 11a2, the first inclined wall 11a1 and the first limiting wall 11a2 are arranged in a radial direction of the shaft body 11, and the first inclined wall 11a1 is arranged away from the central axis of the shaft body 11; the two side walls of the upper joint 31 distributed along the radial direction of the shaft body 11 It can respectively abut the first inclined wall 11a1 and the first limiting wall 11a2. It can be understood that when the upper joint 31 rotates, it changes from a state parallel to the central axis of the central axis body 10 to a state inclined with the central axis of the central axis body 10. At this time, in order to prevent rotational deviation, the first inclined wall 11a1 and the first limiting wall 11a2 of the limiting channel 11a can abut the two side walls of the upper joint 31. In this way, the upper joint 31 is limited to move only along the limiting channel 11a, thereby limiting the rotation direction of the upper joint 31.

[0048] For further information, see Figure 5 In order to improve the stability of the opening and closing structure in the stretched and locked state, a limiting groove 31a is provided on the side wall of the upper joint 31 facing the first limiting wall 11a2, and a stop convex bone 111 is provided at the end of the first limiting wall 11a2 close to the lower body 12 of the shaft. The limiting groove 31a can accommodate the limiting stop convex bone 111. During the rotation process, the side wall of the upper joint 31 facing the first limiting wall 11a2 gradually approaches the first limiting wall 11a2 until it enters the stretched and locked state, and the limiting groove 31a accommodates the stop convex bone 111, that is, the stop convex bone 111 slides relatively into the stop convex bone 111.

[0049] In one embodiment of the present invention, see Figure 5 The upper joint 31 is located on the upper body 11 of the shaft and is provided with an upper sliding groove 31b. The upper sliding groove 31b is extended along the length direction of the upper joint 31, and a first fixed axis 311 is inserted into the upper sliding groove 31b. The two ends of the first fixed axis 311 are respectively fixedly inserted into the inner circumferential wall of the limiting passage 11a. Specifically, when the upper joint 31 is limited in the limiting passage 11a, it also moves relative to the upper body 11 of the shaft. In this way, the movement range and flexibility of the upper joint 31 can be increased, and after the opening and closing structure enters the stretched and locked state of the support bar 50, the first fixed axis 311 will abut against the end of the upper sliding groove 31b away from the lower body 12 of the shaft, and the limiting groove 31a accommodates the limiting stop convex bone 111, thereby further improving the locking strength of the opening and closing structure. For further information, please refer to Figure 5 The shaft lower body 12 is provided with a plurality of avoidance channels 12a, each avoidance channel 12a corresponds to a limiting channel 11a, and the avoidance channel 12a is connected to the rotation groove 10b; each lower joint 32 is movably inserted in a second limiting channel 11a, and the lower joint 32 includes at least a partial structure of the free end that exposes the limiting channel 11a, so that the shaft lower body 12 and the lower joint 32 can be prevented from having position interference.

[0050] In one embodiment of the present invention, see Figure 7The lower joint 32 is located in the part of the shaft body 12 and is provided with a sliding groove 32a, and the sliding groove 32a is extended along the length direction of the lower joint 32, and a second fixed shaft 321 is inserted into the sliding groove 32a, and the two ends of the second fixed shaft 321 are respectively fixedly inserted into the inner circumferential wall of the limiting channel 11a. When the upper joint 31 links the lower joint 32 to rotate, the lower joint 32 can move toward the second fixed shaft 321, so that the second fixed shaft 321 abuts against the end of the sliding groove 32a away from the shaft upper body 11. It should be explained here that in the soft light box, the soft light cloth is usually made of a material with flexibility but not elasticity, which prevents the soft light cloth from being deformed. Here, the support bar 50 is movably inserted in the lower joint 32 and one end extends into the lower groove 32a and abuts the second fixed axis 321. As mentioned above, the lower joint 32 rotates along the rotation trajectory of the free end of the upper joint 31. At this time, in the process of opening the soft light box, the free end of the upper joint 31 in the opening and closing structure rotates toward the central axis of the central axis body 10, thereby driving the lower joint 32 to move along the avoidance channel 12a toward the central axis of the central axis body 10. At this time, the second fixed axis 321 is in a fixed and stationary state relative to the lower joint 32, that is, when the lower joint 32 moves, the second fixed axis 321 abuts against the support bar 50 and presses the support bar 50 to move outward, The moving distance is the distance between the second fixed axis 321 and the lower end of the sliding groove 32a. It can be understood that the other end of the support bar 50 is fixedly connected to the soft light cloth, and the soft light cloth is also fixedly connected to the opening and closing structure. For the support bar 50, when the support bar 50 is stored and locked, its length is divided into two sections, one section is the length for connecting the soft light cloth, and the other end is the length for extending into the sliding groove 32a. In the process of entering the stretched and locked state of the support bar 50, the length of the support bar 50 extending into the sliding groove 32a is squeezed out of the sliding groove 32a, and the position of the soft light cloth is fixed. In this way, both ends of the support bar 50 are subjected to a force, thereby arching, and finally It is reflected in that the support bar 50 holds up the soft light cloth; further, when the soft light box needs to be stored, the key cap is pressed to contact the locked state of the opening and closing structure, and the deformation force of the support bar 50 can be used to drive the lower joint 32 to rotate toward the central axis 10, thereby driving the upper joint 31 to restore its position. During the storage process, there is no need to add an additional structure that can drive the upper joint 31 to restore its position, and the storage of the soft light box can be completed. Based on the above, the opening and closing mechanism proposed in the present invention has very few parts in terms of the structure, and the matching relationship between the parts is close in terms of the movement level. From the operation level, the use of the soft light box can be achieved by pressing the thumb and rotating with both hands.

[0051] In one embodiment of the present invention, a barb structure 322 is provided at the free end of the lower joint 32, and the barb structure 322 is bent away from the lower shaft body 12. The barb structure 322 is used to connect one end of the soft light cloth to achieve a detachable connection between the two.

[0052] The present invention provides a soft box, which includes a soft light cloth, a plurality of support bars 50 and an opening and closing mechanism. Each support bar 50 is movably inserted in a rotating joint assembly 30. The soft light cloth connects the plurality of support bars 50. Specifically, the rotating joint assembly 30 of the opening and closing mechanism includes an upper joint 31 and a lower joint 32. The support bar 50 is movably inserted in the lower joint 32, thereby realizing the opening and closing of the soft light box. The specific structure of the opening and closing mechanism refers to the above-mentioned embodiment. At the same time, the opening and closing mechanism includes all embodiments of the opening and closing mechanism. Since the soft box proposed by the present invention adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0053] The present invention proposes a studio light, which includes a soft box, a light stand and a lighting lamp. The central axis 10 of the soft box is used to connect the light stand and the lighting lamp. The specific structure of the soft box refers to the above embodiment. At the same time, the soft box includes all embodiments of the opening and closing mechanism. Since the studio light proposed by the present invention adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0054] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An opening and closing mechanism, characterized in that: The opening and closing mechanism comprises a central axis body (10) and a rotating body (20); the rotating body (20) comprises a rotating ring (21) and a rotating handle (22) connected to each other; the central axis body (10) is provided with a plurality of rotating joint assemblies (30) and a power-assisting handle (40); the power-assisting handle (40) is fixedly arranged at one end of the central axis body (10); the plurality of rotating joint assemblies (30) are arranged at intervals along the circumferential direction of the central axis body (10); each rotating joint assembly (30) is rotatably arranged on the central axis body (10); the rotating ring (21) is rotatably sleeved on the central axis body (10); a linkage portion is provided on the inner wall of the rotating ring (21); the linkage portion abuts against a portion of the outer wall of each rotating joint assembly (30); the linkage portion drives the rotating joint assembly (30) to rotate relative to the central axis body (10); Wherein, the rotating joint assembly (30) is capable of connecting to a support bar (50).

2. The fill light according to claim 1, characterized in that: The rotating handle (22) is provided with a limit button (23), and a limit convex bone (231) is provided at one end of the limit button (23) close to the central axis (10). The central axis (10) is provided with two limit bone grooves (10a), and the two limit bone grooves (10a) are arranged at intervals along the outer edge of the central axis (10); the limit convex bone (231) can be rotatably inserted into any of the limit bone grooves (10a).

3. The fill light according to any one of claims 1 or 2, characterized in that: The central axis body (10) comprises an upper axis body (11) and a lower axis body (12), a transition section between the upper axis body (11) and the lower axis body (12) is provided with a rotation groove (10b), and the rotation ring (21) is clamped in the rotation groove (10b); each of the rotation joint components (30) comprises an upper joint (31) and a lower joint (32), a rotation end of the upper joint (31) away from the lower joint (32) is provided on the upper axis body (11), a free end of the upper joint (31) is rotationally connected to a rotation end of the lower joint (32), a free end of the lower joint (32) away from the upper joint (31) is penetrated and exposed from the lower axis body (12), and the linkage part abuts against an outer wall of each upper joint (31); The linkage part drives the free ends of the upper joints (31) to rotate relatively close to each other, and the free end of each upper joint (31) drives the free end of a lower joint (32) to rotate relatively far away from each other, and the lower joint (32) is used to connect the support bar (50).

4. The fill light as claimed in claim 3, characterized in that: The inner peripheral wall of the rotating ring (21) is provided with a plurality of drive grooves (21a) arranged at intervals, each of the drive grooves (21a) constitutes the linkage part, and the bottom wall of each of the drive grooves (21a) abuts against the outer wall of an upper joint (31); The direction of rotating the driving groove (21a) to drive the free ends of each upper joint (31) to rotate relatively close to each other is defined as a first direction, and the groove depth of the driving groove (21a) gradually decreases in a direction opposite to the first direction.

5. The fill light as claimed in claim 4, characterized in that: The inner peripheral wall of the rotating ring (21) is provided with a plurality of stop blocks (211) adapted to the driving grooves (21a), and each of the stop blocks (211) is located between two adjacent driving grooves (21a); ​​the upper joint (31) can abut against the stop block (211) to stop and limit the rotation of the rotating body (20).

6. The fill light as claimed in claim 3, characterized in that: The upper shaft body (11) is provided with a plurality of limiting channels (11a), each of the upper joints (31) is movably inserted in a limiting channel (11a), and the limiting channel (11a) is connected to the rotation groove (10b); each of the limiting channels (11a) has a first inclined wall (11a1) and a first limiting wall (11a2), the first inclined wall (11a1) and the first limiting wall (11a2) are arranged in a symmetrical manner along the radial direction of the upper shaft body (11), and the first inclined wall (11a1) is arranged away from the central axis of the upper shaft body (11); the two side walls of the upper joint (31) distributed along the radial direction of the upper shaft body (11) can respectively abut against the first inclined wall (11a1) and the first limiting wall (11a2); Wherein, a limiting groove (31a) is provided on the side wall of the upper joint (31) facing the first limiting wall (11a2), and a stopping convex bone (111) is provided on the end of the first limiting wall (11a2) close to the lower body (12) of the shaft, and the limiting groove (31a) can accommodate and limit the stopping convex bone (111).

7. The fill light as claimed in claim 6, characterized in that: The upper joint (31) is located on the upper body (11) of the shaft and is provided with an upper slide groove (31b), the upper slide groove (31b) is extended along the length direction of the upper joint (31), a first fixed shaft (311) is inserted into the upper slide groove (31b), and the two ends of the first fixed shaft (311) are respectively fixedly inserted into the inner peripheral wall of the limiting channel (11a); Wherein, when the first fixed shaft (311) abuts against the end of the upper sliding groove (31b) away from the shaft lower body (12), the limiting groove (31a) accommodates and limits the stop convex bone (111).

8. The fill light as claimed in claim 6, characterized in that: The shaft lower body (12) is provided with a plurality of avoidance channels (12a), each avoidance channel (12a) corresponds to a limit channel (11a), and the avoidance channel (12a) is connected to the rotation groove (10b); each lower joint (32) is movably inserted in one of the second limit channels (11a); A lower slide groove (32a) is provided in a portion of the lower joint (32) located at the lower body (12) of the shaft. The lower slide groove (32a) is extended along the length direction of the lower joint (32). A second fixed shaft (321) is inserted into the lower slide groove (32a). Both ends of the second fixed shaft (321) are respectively fixedly inserted into the inner peripheral wall of the limiting channel (11a). When the upper joint (31) is linked to the lower joint (32) for rotation, the lower joint (32) can move toward the second fixed axis (321) so that the second fixed axis (321) abuts against the end of the lower sliding groove (32a) away from the upper shaft body (11).

9. A soft box, characterized in that: The soft light box comprises a soft light cloth, a plurality of support bars (50) and an opening and closing mechanism as described in any one of claims 1 to 8, each of the support bars (50) is movably inserted in one of the rotating joint components (30), and the soft light cloth connects the plurality of support bars (50).

10. A studio light, characterized in that: The video light comprises the soft box as claimed in claim 9.

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