Opening and closing mechanism, soft light box and studio light

Abstract

The present application relates to the technical field of soft light box, and particularly relates to a kind of opening and closing mechanism, soft light box and studio lamp, the opening and closing mechanism includes middle shaft body and rotating body;The rotating body includes rotation ring and rotating handle connected with each other, the middle shaft body is equipped with multiple rotating joint assemblies and power-assisted handle, the power-assisted handle is fixedly arranged at one end of the middle shaft body, multiple rotating joint assemblies are arranged along the circumferential direction of the middle shaft body, and each rotating joint assembly is rotatably arranged on the middle shaft body;The rotation ring is rotatably sleeved on the middle shaft body, and the inner wall of the rotation ring is provided with a linkage portion, the linkage portion abuts against part of the outer wall of each rotating joint assembly, and the linkage portion drives the rotating joint assembly to rotate relative to the middle shaft body;Wherein, the rotating joint assembly can be connected with support bar.In the technical scheme of the present application, the opening and closing mechanism aims to improve the opening and closing efficiency of the soft light box and reduce the use difficulty.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of softbox, in particular to a opening and closing mechanism, a softbox and a studio lamp. BACKGROUND

[0002] The softbox is a photography accessory, which is used with a studio lamp to make the light more soft and eliminate the light spot and shadow on the photographed photo. The softbox is usually composed of a soft cloth, a plurality of support bars, a base and the like. The plurality of 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 are expanded and stored.

[0003] In the related art, the applicant finds that when the support bars need to be expanded, the user needs to exert a large pressing force and a pulling force on the base by means of a plurality of fingers, and then the two arms are relatively rotated to expand the softbox, which causes inconvenience in use. SUMMARY

[0004] The main purpose of the present application is to provide an opening and closing mechanism, which aims to improve the opening and closing efficiency of the softbox and reduce the difficulty of use.

[0005] To achieve the above purpose, the opening and closing mechanism comprises a middle shaft body and a rotating body. The rotating body comprises a rotating ring and a rotating handle connected to 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. A plurality of rotating joint assemblies are arranged at intervals along the circumferential direction of the middle shaft body, and each rotating joint assembly is rotatably arranged on the middle shaft body. The rotating ring is rotatably sleeved on the middle shaft body. An inner wall of the rotating ring is provided with a linkage part, which abuts against part of the outer wall of each rotating joint assembly. The linkage part drives the rotating joint assembly to rotate relative to the middle shaft body.

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

[0007] In an embodiment of the present application, the rotating handle is provided with a limiting button. A limiting convex bone is arranged at one end of the middle shaft body close to the limiting button. The middle shaft body is provided with two limiting bone grooves arranged at intervals along the outer edge of the middle shaft body. The limiting convex bone is rotatably inserted into any one of the limiting bone grooves.

[0008] In an embodiment of the present application, the middle shaft body comprises an upper shaft body and a lower shaft body, a transition section between the upper shaft body and the lower shaft body is provided with a rotating groove, and the rotating ring is clamped in the rotating groove; each rotating joint assembly comprises an upper joint and a lower joint, the upper joint is arranged on the upper shaft body away from the rotating end of the lower joint, the free end of the upper joint is rotatably connected to the rotating end of the lower joint, and the lower joint is arranged to pass through and expose the lower shaft body away from the free end of the upper joint; the linkage part abuts the outer wall of each upper joint.

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

[0010] In an embodiment of the present application, the inner circumferential wall of the rotating ring is provided with a plurality of driving grooves arranged at intervals, each driving groove constitutes the linkage part, and the bottom wall of each driving groove abuts the outer wall of one upper joint.

[0011] Wherein, the direction in which the driving groove is defined to rotate to drive the free end of each upper joint to rotate relatively close to each other is defined as the first direction, and the groove depth of the driving groove gradually decreases in the direction opposite to the first direction.

[0012] In an embodiment of the present application, the inner circumferential wall of the rotating ring is provided with a plurality of stop blocks matching the number of the driving grooves, each stop block is located between two adjacent driving grooves; the upper joint can abut the stop block to limit the rotation of the rotating body.

[0013] In an embodiment of the present application, the upper shaft body is provided with a plurality of limiting channels, each upper joint is movably inserted into a limiting channel, and the limiting channel is communicated with the rotating groove; each limiting channel has a first inclined wall and a first limiting wall, the first inclined wall and the first limiting wall are distributed in the radial direction of the upper shaft body, and the first inclined wall is arranged away from the central axis of the upper shaft body; the two side walls of the upper joint distributed in the radial direction of the upper shaft body can abut the first inclined wall and the first limiting wall, respectively.

[0014] In an embodiment of the present application, the side wall of the upper joint facing the first limiting wall is provided with a limiting groove, and the end of the first limiting wall close to the lower shaft body is provided with a stop convex bone, and the limiting groove can accommodate the stop convex bone to limit the rotation.

[0015] In an embodiment of the present application, the upper joint is located on a part of the shaft upper body, which is provided with an upper sliding groove extending along the length direction of the upper joint, and a first fixed shaft is inserted into the upper sliding groove, and the two ends of the first fixed shaft are respectively fixedly inserted into the inner circumferential wall of the limiting channel.

[0016] In the present application, when the first fixed shaft abuts against the end of the upper sliding groove away from the shaft lower body, the limiting recess accommodates and limits the stop protruding bone.

[0017] In an embodiment of the present application, the shaft lower body is provided with a plurality of avoidance channels, each of which is positioned with a limiting channel, and the avoidance channels are connected to the rotating groove; each lower joint is movably inserted into a second limiting channel.

[0018] In an embodiment of the present application, the lower joint is located on a part of the shaft lower body, which is provided with a lower sliding groove extending along the length direction of the lower joint, and a second fixed shaft is inserted into the lower sliding groove, and the two ends of the second fixed shaft are respectively fixedly inserted into the inner circumferential wall of the limiting channel.

[0019] In the present application, when the upper joint drives the lower joint to rotate, the lower joint can move towards the second fixed shaft, so that the second fixed shaft abuts against the end of the lower sliding groove away from the shaft upper body.

[0020] In an embodiment of the present application, the free end of the lower joint is provided with a barb structure, which is bent away from the shaft lower body.

[0021] In the present application, a soft light box is provided, which comprises a soft light cloth, a plurality of supporting rods and the opening and closing mechanism, each supporting rod is movably inserted into a rotating joint assembly, and the soft light cloth is connected to the supporting rods.

[0022] In the present application, a studio lamp is provided, which comprises the soft light box.

[0023] In the present application, the opening and closing mechanism is applied to the soft light box, and the opening and closing mechanism has a rotating handle capable of rotating and a power-assisted handle fixed in position, so that the user holds one handle with each hand and can open or close the soft light box by applying a rotating force, wherein in the process of rotating the handle, the linkage part of the rotating ring drives each rotating joint assembly abutting against it 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 towards or away from the central shaft body, and the supporting rods supporting the soft light cloth in the soft light box can be connected to the rotating joint assemblies, so that in the opening and closing process, only a rotating force needs to be applied, without the need to apply a force to other parts, so as to realize the storage or expansion of the supporting rods, which is simple in operation and greatly improves the opening and closing efficiency and reduces the difficulty of opening and closing. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

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

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

[0027] Figure 3 For along Figure 2 Sectional view of line AA in the middle;

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

[0029] Figure 5 For along Figure 4 Sectional view of the middle BB line;

[0030] Figure 6 This is a schematic diagram of another embodiment of the central shaft provided by the present invention;

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

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

[0033] Explanation of icon numbers:

[0034] 10. Central shaft; 11. Upper shaft body; 11a. Limiting channel; 11a1. First inclined wall; 11a2. First limiting wall; 111. Stopping rib; 12. Lower shaft body; 12a. Avoidance channel; 10a. Limiting rib groove; 10b. Rotating groove; 20. Rotating body; 21. Rotating ring; 21a. Drive groove; 211. Stopping block; 22. Rotating handle; 23. Limiting button; 231. Limiting rib; 30. Rotating joint assembly; 31. Upper joint; 31a. Limiting groove; 31b. Upper sliding groove; 311. First fixed axis; 32. Lower joint; 32a. Lower sliding groove; 321. Second fixed axis; 322. Barbed structure; 33. Third fixed axis; 40. Power handle; 50. Support bar.

[0035] The objectives, functional characteristics and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

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

[0038] In addition, the descriptions involving “first”, “second” and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text includes three parallel solutions. Taking “A and / or B” as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0039] Please refer to Figure 1 , the opening and closing mechanism includes a middle shaft body 10 and a rotating body 20; the rotating body 20 includes a rotating ring 21 and a rotating handle 22 connected with each other, the middle shaft body 10 is provided with a plurality of rotating joint assemblies 30 and a power-assisted handle 40, the power-assisted handle 40 is fixedly arranged at one end of the middle shaft body 10, the plurality of rotating joint assemblies 30 are arranged in a circumferential direction of the middle shaft body 10 and are spaced apart from each other, and each rotating joint assembly 30 is rotatably arranged on the middle shaft body 10; the rotating ring 21 is rotatably sleeved on the middle shaft body 10, an inner wall of the rotating ring 21 is provided with a linkage portion, the linkage portion abuts against part of an outer wall of each rotating joint assembly 30, and the linkage portion drives the rotating joint assembly 30 to rotate relative to the middle shaft body 10; wherein the rotating joint assembly 30 is capable of connecting a support strip 50.

[0040] In the technical scheme, the opening and closing mechanism is applied to the soft light box, and the opening and closing mechanism has a rotating handle 22 capable of rotating and a power-assisted handle 40 fixed in position. Thus, a user holds one handle with each hand and applies a rotating force to achieve opening and closing of the soft light box. In the process of rotating the handle 22, the linkage portion of the rotating ring 21 drives each rotating joint assembly 30 abutting thereto 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 shaft body 10. Meanwhile, the support strip 50 in the soft light box capable of connecting 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 storage or expansion of the support strip 50. The operation is simple, and the opening and closing efficiency is greatly improved, and the opening and closing difficulty is reduced.

[0041] The central shaft body 10 is a shaft body part of the soft light box, and a chuck or the like connecting structure can be arranged at the end thereof to be fixed to a studio lamp. For reference, the prior art is not explained here. The central shaft body 10 is used to mount the rotating body 20, the rotating joint assembly 30 and the like structure. A plurality of grooves, channels, holes and the like spatial virtual body structures for mounting these structures are arranged on the central shaft body 10 to achieve the required rotating, moving and the like movement forms of the structures. Specifically, four channel structures are arranged at the outer edge of the central shaft body 10, are spaced apart along the circumferential direction of the central shaft body 10, and extend along the length direction of the central shaft body 10 as a whole. Each channel structure is used to position and accommodate a rotating joint assembly 30 to achieve movement and rotation of the rotating joint assembly 30, thereby driving the support strip 50 to rotate and achieve opening and closing of the soft light box. Of course, the central shaft body 10 is also provided with a rotating groove for rotation of the rotating body 20. The rotating groove is arranged around the outer surface of the central shaft body 10. Thus, the rotating ring 21 of the rotating body 20 is clamped in the rotating groove. After a user holds the rotating handle 22 and applies a rotating force, the rotating ring 21 can rotate relative to the central shaft body 10. In the process of rotating the rotating ring 21 relative to the central shaft body 10, the linkage portion on the inner wall of the rotating ring 21 can abut against the rotating joint assembly 30 at the outer edge of the central shaft body 10. Thus, the rotating of the support strip 50 can be achieved, thereby achieving opening and closing of the soft light box.

[0042] In an embodiment, a rotating joint assembly 30 includes upper and lower joints, i.e., an upper joint 31 and a lower joint 32. The upper joint 31 and the lower joint 32 are arranged along the length direction of the central shaft body 10, i.e., the lower end of the upper joint 31 is connected to the upper end of the lower joint 32 through a third fixed shaft 33. Thus, the lower joint 32 can be provided with a through channel for insertion of the support strip 50. At this time, the inner peripheral wall of the rotating ring 21 can be provided with a plurality of push protrusions. The push protrusions can be fixed to the inner peripheral wall of the rotating ring 21 through buckle positions, buckle points and the like detachable structures. The protrusion height of the push protrusions can be in the direction capable of opening the soft light box (for reference Figure 7The pushing protrusion gradually increases in size in the first direction, so that the pushing protrusion can exert a pushing force on the upper joint 31 towards the center of the rotating ring 21 during the rotation of the rotating ring 21 relative to the upper joint 31, and the upper end of the upper joint 31 can be limited by the first top shaft in the middle shaft body 10, so as to realize the rotation of the upper joint 31, that is, the upper end of the upper joint 31 is a rotating end, and the lower end is a free end, so that the rotation of the upper joint 31 can further drive the lower joint 32 to move, in which the movement form of the lower joint 32 is to rotate along the rotating track of the upper joint 31, and the movement form of the opening and closing mechanism is to rotate the rotating handle 22, the lower joint 32 rotates towards or away from the middle shaft body 10, thereby driving the support strip 50 to be stored or expanded; in another embodiment, the rotating joint assembly 30 includes any multiple even number of joint structures, and the lowermost joint structure is provided with a channel structure for inserting the support strip 50, so that the support strip 50 can also be stored or expanded.

[0043] In an embodiment of the present application, please refer to Figure 2 and Figure 3 The rotating handle 22 is provided with a limiting button 23, one end of the limiting button 23 close to the middle shaft body 10 is provided with a limiting protrusion 231, and the middle shaft body 10 is provided with two limiting bone grooves 10a, which are arranged along the outer edge of the middle shaft body 10; the limiting protrusion 231 is rotatably inserted into any limiting bone groove 10a, specifically, the limiting button 23 includes a key cap, a key shaft, a return spring and a limiting piece, the rotating handle 22 is provided with a limiting groove which is suitable in shape for the key cap and for pressing the key cap, one end of the key shaft is connected with the key cap, the other end passes through the groove wall of the limiting groove, the return spring is sleeved on the key shaft and connected with the key cap and the groove wall of the limiting groove, and the limiting piece is fixedly connected with the key shaft end exposed from the limiting groove, and the limiting protrusion 231 is formed at the end of the limiting piece away from the key shaft, so that pressing the key cap can drive the limiting protrusion 231 to move downward, and after a certain pressing stroke, the key cap can abut against the groove wall of the limiting groove, at this time, the limiting protrusion 231 is lower than or flush with the limiting bone groove 10a of the middle shaft body 10, so that the locking state of the opening and closing mechanism can be released only by pressing the button, and then the two handles are held by two hands respectively, and the opening and closing of the soft light box can be completed by relatively rotating the two hands, so as to use or store the soft light box.

[0044] In an embodiment of the present application, please refer to Figure 4 and Figure 5, the middle shaft body 10 includes an upper shaft body 11 and a lower shaft body 12, a transition section between the upper shaft body 11 and the lower shaft body 12 is provided with a rotating groove 10b, and the rotating ring 21 is clamped in the rotating groove 10b, wherein the end of the upper shaft body 11 is provided with a power-assisted handle 40, the power-assisted handle 40 can be detachably connected to the upper shaft body 11 by means of insertion, clamping, screwing or the like, or can be integrated with the upper shaft body 11 by means of injection molding process or hot melting process, etc., which is limited herein, by segmenting the middle shaft body 10, the power-assisted handle 40 and the rotating handle 22 can be disposed in a staggered manner in the up-down direction, so that the user can hold the two handles and apply a rotating force; in the embodiment, each rotating joint assembly 30 includes an upper joint 31 and a lower joint 32, the linkage portion abuts the outer wall of each upper joint 31, and the rotating end of the upper joint 31 away from the lower joint 32 is arranged on the upper shaft body 11, wherein the upper joint 31 can be connected to the upper shaft body 11 by means of a shaft, thereby realizing the rotation of the upper joint 31, or the upper part of the upper joint 31 can be made into a ball head structure, thereby being inserted into the upper shaft body 11, thereby realizing the rotation of the upper joint 31, which is not limited herein, the free end of the upper joint 31 is rotatably connected to the rotating end of the lower joint 32 through a third fixed shaft 33, and the free end of the lower joint 32 away from the upper joint 31 penetrates and exposes the lower shaft body 12; wherein the linkage portion drives the free end of each upper joint 31 to relatively approach rotation, the free end of each upper joint 31 links the free end of the lower joint 32 to relatively move away from rotation, and the lower joint 32 is used for connecting the support strips 50, so that when the upper joint 31 is rotated under the action of the linkage portion, the lower joint 32 moves correspondingly with the upper joint 31, specifically, please refer to Figure 7 In the process that the free end of the upper joint 31 rotates towards the ring core of the rotating ring 21, the upper joint 31 moves along the rotating track of the upper joint 31 through the third fixed shaft 33, the upper joint 31 as a whole presents an inclined movement, and finally the free end of the upper joint 31 rotates, thereby driving the expansion and close of the support strips 50.

[0045] In an embodiment of the present application, the inner peripheral wall of the rotating ring 21 is provided with a plurality of spaced driving grooves 21a, each driving groove 21a constitutes a linkage portion, and the bottom wall of each driving groove 21a abuts the outer wall of an upper joint 31, wherein please refer to Figure 8 , the direction in which the rotating driving groove 21a drives the free end of each upper joint 31 to relatively approach rotation is defined as the first direction, the groove depth of the driving groove 21a gradually decreases in the direction opposite to the first direction, so that it is not necessary to set a plurality of structures capable of pushing the upper joint 31 to rotate, and the relative rotation of the rotating joint assembly 30 can be completed by using the inner peripheral wall of the rotating ring 21, which is simple in structure and greatly reduces the material cost of the soft light box.

[0046] Further, in order to realize automatic rotation stop, please refer to Figure 2The inner peripheral wall of the rotating ring 21 is provided with a plurality of stop blocks 211 matched in number with 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 and limit the rotation of the rotating body 20. It can be understood that the opening and closing structure has a storage locking state of the supporting strip 50 and a relaxed locking state of the supporting strip 50. In the storage locking state, the limiting button 23 is in a rebound position, at this time, the limiting convex bone 231 is inserted into a limiting bone groove 10a, and at the same time, the upper joint 31 abuts against a stop block 211. Then, the key cap is pressed to unlock the opening and closing mechanism, and then the rotating handle 22 is rotated by a certain angle, and then the upper joint 31 abuts against another stop block 211. At this time, the rotating handle 22 cannot be continuously rotated, and then the pressing on the key cap is released, the limiting convex bone 231 rebounds into another limiting bone groove 10a, so that the opening and closing mechanism enters the relaxed locking state. In this way, the user does not need to visually measure the position of the limiting convex bone 231 and the limiting bone groove 10a, and automatic stopping is realized. At the same time, the two ends of each driving groove 21a are provided with a stop block 211, and rotation prevention is realized.

[0047] In an embodiment of the present application, please refer to Figure 5 The shaft upper body 11 is provided with a plurality of limiting channels 11a, each upper joint 31 is movably inserted into a limiting channel 11a, and the limiting channel 11a is communicated with the rotating 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 distributed in the radial direction of the shaft upper body 11, and the first inclined wall 11a1 is arranged away from the central axis of the shaft upper body 11. The two side walls of the upper joint 31 distributed in the radial direction of the shaft upper body 11 can abut against the first inclined wall 11a1 and the first limiting wall 11a2 respectively. It can be understood that when the upper joint 31 rotates, it changes from a state parallel to the central axis of the shaft body 10 to a state inclined to the central axis of the shaft body 10. At this time, in order to prevent rotation deviation, the first inclined wall 11a1 and the first limiting wall 11a2 of the limiting channel 11a can abut against the two side walls of the upper joint 31. In this way, the upper joint 31 can only move along the limiting channel 11a, so as to limit the rotation direction of the upper joint 31.

[0048] Further, please refer to Figure 5 In order to improve the stability of the opening and closing structure in the relaxed locking state, the side wall of the upper joint 31 facing the first limiting wall 11a2 is provided with a limiting recess 31a, and the end of the first limiting wall 11a2 close to the shaft lower body 12 is provided with a stop convex bone 111. The limiting recess 31a can accommodate the limiting stop convex bone 111. In the process of rotation, the side wall of the upper joint 31 facing the first limiting wall 11a2 gradually approaches the first limiting wall 11a2 until the relaxed locking state is reached, the limiting recess 31a accommodates the stop convex bone 111, that is, the stop convex bone 111 relatively slides into the stop convex bone 111.

[0049] In an embodiment of the present application, please refer to Figure 5 The upper joint 31 is located on the part of the shaft body 11 structure is provided with an upper chute 31b, upper chute 31b along the length of the upper joint 31 direction, upper chute 31b is inserted into a first fixed shaft 311, both ends of the first fixed shaft 311 are fixedly inserted into the inner wall of the limiting channel 11a, specifically, the upper joint 31 in the limiting channel 11a occurs limiting channel 11a at the same time, also occurs relative to the shaft body 11 movement, so, can increase the range of motion and flexibility of the upper joint 31, and, after the open-close structure into the support bar 50 stretch lock state, the first fixed shaft 311 will be abutted with the end of the upper chute 31b away from the shaft 12, the limiting recess 31a contains the limiting stop convex bone 111, further improve the locking strength of the open-close structure; further, please refer to Figure 5 The shaft 12 is provided with a plurality of avoid position channel 12a, each avoid position channel 12a is located in a limiting channel 11a, avoid position channel 12a is communicated with the rotating groove 10b; each lower joint 32 is movably inserted into a second limiting channel, and the lower joint 32 includes the free end of at least part of the structure exposed to the limiting channel, so, can prevent the shaft 12 and the lower joint 32 position interference.

[0050] In an embodiment of the present application, please refer to Figure 7The lower joint 32 is located in the part structure of the shaft lower body 12, and a lower sliding groove 32a is arranged along the length direction of the lower joint 32, and a second fixed shaft 321 is inserted in the lower sliding groove 32a, and the two ends of the second fixed shaft 321 are respectively fixedly inserted in the inner circumferential wall of the limiting channel 11a. Wherein, when the upper joint 31 and the lower joint 32 rotate in linkage, the lower joint 32 can move towards the second fixed shaft 321, so that the second fixed shaft 321 abuts against the end of the lower sliding groove 32a away from the shaft upper body 11. It needs to be explained here that in the soft light box, the soft light cloth is usually made of a material with flexibility but without elasticity, which can prevent the soft light cloth from deforming. Based on this, the supporting strip 50 is movably inserted in the lower joint 32, and one end of the supporting strip 50 extends into the lower sliding groove 32a and abuts against the second fixed shaft 321. As mentioned above, the lower joint 32 rotates along the rotation track 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 towards the central axis of the central shaft body 10, thereby driving the lower joint 32 to move along the avoiding channel 12a towards the central axis of the central shaft body 10. At this time, the second fixed shaft 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 shaft 321 abuts against the supporting strip 50 and presses the supporting strip 50 to move outward, and the moving distance is the distance between the second fixed shaft 321 and the lower end of the lower sliding groove 32a. It can be understood that the other end of the supporting strip 50 is fixedly connected with the soft light cloth, and the soft light cloth is also fixedly connected with the opening and closing structure. For the supporting strip 50, in the supporting strip 50 storage and locking state, the length of the supporting strip 50 is divided into two parts, one part is the length connected with the soft light cloth, and the other part is the length extending into the lower sliding groove 32a. In the process of entering the supporting strip 50 expansion and locking state, the length of the supporting strip 50 extending into the lower sliding groove 32a is extruded out of the lower sliding groove 32a, and the position of the soft light cloth is fixed. In this way, both ends of the supporting strip 50 are subjected to a force, thereby arching, and finally the supporting strip 50 is stretched to open the soft light cloth. Further, when it is necessary to store the soft light box, the key cap is pressed to contact the locking state of the opening and closing structure, and the deformation force of the supporting strip 50 is used to reversely drive the lower joint 32 to rotate towards the central shaft body 10, thereby driving the upper joint 31 to return to the original position. In the storage process, no additional structure is needed to drive the upper joint 31 to return to the original position, and the storage of the soft light box can be completed. Based on the above, the opening and closing mechanism proposed in the application has few parts in terms of structure, the cooperation relationship between the parts is close in terms of movement, and only the thumb needs to be pressed and the hands need to be rotated to realize the use of the soft light box in terms of operation.

[0051] In an embodiment of the application, the free end of the lower joint 32 is provided with a barb structure 322, which is bent away from the shaft lower body 12. The barb structure 322 is used to connect one end of the soft light cloth, realizing detachable connection between the two.

[0052] The present application provides a soft light box, which comprises a soft light cloth, a plurality of support bars 50 and an opening and closing mechanism. Each support bar 50 is movably inserted into a rotating joint assembly 30. The soft light cloth is connected to the plurality of support bars 50. Specifically, the rotating joint assembly 30 of the opening and closing mechanism comprises an upper joint 31 and a lower joint 32. The support bar 50 is movably inserted into the lower joint 32, thereby realizing the opening and closing of the soft light box. The specific structure of the opening and closing mechanism is described above. Meanwhile, the opening and closing mechanism comprises all the embodiments of the opening and closing mechanism. Since the soft light box of the present application adopts all the technical solutions of 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.

[0053] The present application provides a studio lamp, which comprises a soft light box, a lamp stand and a lighting lamp. The central shaft body 10 of the soft light box is used to connect the lamp stand and the lighting lamp. The specific structure of the soft light box is described above. Meanwhile, the soft light box comprises all the embodiments of the opening and closing mechanism. Since the studio lamp of the present application adopts all the technical solutions of 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.

[0054] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the inventive concept of the present application and the content of the specification and drawings are included in the patent protection scope of the present application.

Claims

1. An opening and closing mechanism characterized by comprising: The opening and closing mechanism comprises a middle shaft body (10) and a rotating body (20); the rotating body (20) comprises a rotating ring (21) and a rotating handle (22) connected with each other, the middle shaft body (10) is provided with a plurality of rotating joint assemblies (30) and a power-assisted handle (40), the power-assisted handle (40) is fixedly arranged at one end of the middle shaft body (10), a plurality of rotating joint assemblies (30) are arranged along the circumferential direction of the middle shaft body (10) at intervals, and each rotating joint assembly (30) is rotatably arranged on the middle shaft body (10); the rotating ring (21) is rotatably sleeved on the middle shaft body (10), an inner wall of the rotating ring (21) is provided with a linkage part, the linkage part abuts against 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 middle shaft body (10); Wherein, the rotating joint assembly (30) can be connected with a support strip (50); The rotating handle (22) is provided with a limiting button (23), the limiting button (23) is provided with a limiting convex bone (231) close to one end of the middle shaft body (10), the middle shaft body (10) is provided with two limiting bone grooves (10a), and the two limiting bone grooves (10a) are arranged along the outer edge of the middle shaft body (10) at intervals; the limiting convex bone (231) is rotatably inserted into any limiting bone groove (10a); The middle shaft body (10) comprises an upper shaft body (11) and a lower shaft body (12), a transition section between the upper shaft body (11) and the lower shaft body (12) is provided with a rotating groove (10b), and the rotating ring (21) is clamped in the rotating groove (10b); each rotating joint assembly (30) comprises an upper joint (31) and a lower joint (32), the upper joint (31) is arranged on the upper shaft body (11) away from the rotating end of the lower joint (32), the free end of the upper joint (31) is rotatably connected to the rotating end of the lower joint (32), and the lower joint (32) is arranged on the lower shaft body (12) away from the free end of the upper joint (31) and exposed, and the linkage part abuts against the outer wall of each upper joint (31); Wherein, the linkage part drives the free end of each upper joint (31) to rotate relatively close to each other, and the free end of each upper joint (31) is linked to the free end of the lower joint (32) to rotate relatively away from each other, and the lower joint (32) is used for connecting the support strip (50).

2. The opening and closing mechanism according to claim 1, characterized in that The inner circumferential wall of the rotating ring (21) is provided with a plurality of spaced driving grooves (21a), and each driving groove (21a) constitutes the linkage part; the bottom wall of each driving groove (21a) abuts against the outer wall of one upper joint (31); Wherein, the direction in which the driving groove (21a) is defined to drive the free end 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.

3. The opening and closing mechanism according to claim 2, wherein The inner peripheral wall of the rotating ring (21) is provided with a plurality of stop blocks (211) matched with the driving grooves (21a), 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).

4. The opening and closing mechanism according to claim 1, wherein The shaft body (11) is provided with a plurality of limiting channels (11a), each of the upper joints (31) is movably inserted into one of the limiting channels (11a), and the limiting channels (11a) are communicated with the rotating grooves (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 distributed in the 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 in the radial direction of the shaft body (11) can abut against the first inclined wall (11a1) and the first limiting wall (11a2) respectively; Wherein, the side wall of the upper joint (31) facing the first limiting wall (11a2) is provided with a limiting groove (31a), the end of the first limiting wall (11a2) close to the shaft body (12) is provided with a stop protrusion (111), and the limiting groove (31a) can accommodate and limit the stop protrusion (111).

5. The opening and closing mechanism according to claim 4, wherein The part of the structure of the upper joint (31) located in the shaft body (11) is provided with an upper sliding groove (31b), the upper sliding groove (31b) is arranged in the length direction of the upper joint (31), and a first fixed shaft (311) is inserted into the upper sliding groove (31b), and the two ends of the first fixed shaft (311) are 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 body (12), the limiting groove (31a) accommodates and limits the stop protrusion (111).

6. The opening and closing mechanism according to claim 4, wherein The shaft body (12) is provided with a plurality of avoidance channels (12a), each of the avoidance channels (12a) is matched with one of the limiting channels (11a), and the avoidance channels (12a) are communicated with the rotating grooves (10b); each of the lower joints (32) is movably inserted into a second limiting channel, so that the free end of the lower joint (32) is exposed to the second limiting channel; The part of the structure of the lower joint (32) located in the shaft body (12) is provided with a lower sliding groove (32a), the lower sliding groove (32a) is arranged in the length direction of the lower joint (32), and a second fixed shaft (321) is inserted into the lower sliding groove (32a), and the two ends of the second fixed shaft (321) are fixedly inserted into the inner peripheral wall of the limiting channel (11a); When the upper joint (31) drives the lower joint (32) to rotate, the lower joint (32) can move towards the second fixed shaft (321) so that the second fixed shaft (321) abuts against the end of the lower sliding groove (32a) away from the shaft body (11).

7. A softbox, characterized in that The soft light box comprises soft light cloth, a plurality of supporting strips (50) and the opening and closing mechanism as claimed in any one of claims 1-6, each supporting strip (50) is movably inserted into a rotating joint assembly (30), and the soft light cloth is connected with the plurality of supporting strips (50).

8. A studio lamp characterized in that The studio lamp comprises the soft light box as claimed in claim 7.

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