A dismountable light box

Abstract

The present application belongs to the technical field of light boxes, and relates to a detachable light box, which comprises a frame, a light source assembly and a first connecting device, the frame is composed of a plurality of supports connected in sequence at the first end and the tail end, a mounting groove is arranged on the frame, the light source assembly is mounted on the frame, and the first connecting device is used for detachably connecting two adjacent supports arranged perpendicularly, the first connecting device comprises a first connecting piece fixedly mounted on the first support, a second connecting piece movably mounted on the second support and a driving piece rotatably arranged on the second connecting piece, a guide groove is arranged on the first connecting piece, a corresponding guide block is arranged on one end of the second connecting piece close to the guide groove, the guide block is in sliding connection with the guide groove, an installation part is further arranged on the second connecting piece, a driving part is further arranged on the driving piece, and the driving part is coupled with the installation part. The detachable light box has the advantages that the light box frame can be quickly disassembled and installed, and the convenience of users in installing or disassembling the light box frame is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of light boxes, and relates to a detachable light box. BACKGROUND

[0002] A light box is a display device for exhibition, generally having an advertising display cloth laid outside and a light source arranged inside. The light emitted from the light source inside the light box can illuminate the laid advertising display cloth. In the case of insufficient light source or at night, the advertising display cloth can be clearly seen by people. At present, light boxes are widely used in shopping malls, subways and exhibition venues. In the existing light boxes, the entire light box is assembled by profiles. The conventional light box assembly structure is fixed, which results in inconvenient installation and disassembly of the light box frame. SUMMARY

[0003] The present application aims at the deficiencies of the prior art, and provides a detachable light box, which can realize quick disassembly and installation of the light box frame and improve the convenience of users when installing or disassembling the light box frame.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A detachable light box comprises:

[0006] a frame, which is composed of a plurality of supports connected in sequence at the first end and the last end;

[0007] a light source assembly, which is installed on the frame and used for providing a light source;

[0008] a first connecting device, which is used for detachably connecting two adjacent and vertically arranged supports, and comprises:

[0009] a first connecting piece, which is fixedly installed on the first support and is provided with a guide groove;

[0010] a second connecting piece, which is movably installed on the second support and is provided with a corresponding guide block at one end close to the guide groove, the guide block being in sliding connection with the guide groove, and the second connecting piece being further provided with a mounting portion;

[0011] a driving piece, which is rotatably arranged on the second connecting piece and is further provided with a driving portion, the driving portion being coupled with the mounting portion;

[0012] When the driving piece is rotated by an external force, the driving piece has a horizontal state and a vertical state, and the driving portion can press the mounting portion, so that the second connecting piece moves towards or away from the first connecting piece, thereby unlocking or locking the first connecting piece and the second connecting piece.

[0013] Further, the lamp box further comprises a supporting device, two ends of the supporting device are respectively clamped and connected to two opposite supports, and the supporting device is used for supporting the frame.

[0014] Further, the lamp box further comprises a second connecting device, the second connecting device is used for detachably connecting two adjacent supports arranged in parallel.

[0015] Further, the driving part is provided with a first extrusion end face, and the mounting part is provided with a corresponding first pressure receiving end face; when the driving part is rotated from a horizontal state to a vertical state, the first extrusion end face can abut against the first pressure receiving end face, the second connecting part is driven to move towards the direction of the first connecting part, so as to unlock the first connecting part and the second connecting part; the driving part is further provided with a second extrusion end face, and the mounting part is further provided with a corresponding second pressure receiving end face; when the driving part is rotated from a vertical state to a horizontal state, the second extrusion end face can extrude the second pressure receiving end face, the second connecting part is driven to move away from the direction of the first connecting part, so as to lock the first connecting part and the second connecting part.

[0016] Further, the first extrusion end face and the second extrusion end face are both curved surfaces.

[0017] Further, the supporting device comprises a clamping part, opposite sides of the clamping part are further provided with clamping arm parts, and the supports are further provided with corresponding clamping grooves, and the clamping arm parts are clamped on the clamping grooves.

[0018] Further, the clamping part is further provided with a connecting part, the connecting part is provided with a plug-in groove, and the end part of the supporting rod is plugged into the plug-in groove.

[0019] Further, the supporting device further comprises a first reinforcing part, and the first reinforcing part is fixed with the connecting part and the clamping arm part.

[0020] Further, the side wall of the first reinforcing part is further provided with a notched area.

[0021] Further, the second connecting device comprises:

[0022] a third connecting part, two ends of the third connecting part are respectively plugged into two adjacent supports arranged in parallel;

[0023] a locking nut, a connecting end of the locking nut is rotatably fixed with the third connecting part through the top wall of the support.

[0024] The beneficial effects of the present application are as follows:

[0025] By setting a first connecting device, which includes a first connector, a second connector, and a driving component, the first connector is mounted on a first bracket, the second connector is mounted on a second bracket, and the driving component is rotatably mounted on the second connector. A guide groove is provided on the first connector, and a corresponding guide block is provided on one end of the second connector near the guide groove. The guide block is slidably connected to the guide groove. The second connector also has a mounting portion, and the driving component also has a driving portion, which is coupled to the mounting portion. This allows the user to install two adjacent and perpendicularly arranged brackets simply by sliding the guide block to the guide groove and then applying external force to rotate the driving component. The device can compress the mounting part, causing the second connector to move away from the first connector. This allows the guide block and the end of the bracket with the second connector mounted to form a clamping part that clamps the sidewall of the guide groove, locking the first and second connectors together. This enables the quick installation of two adjacent vertically arranged brackets. When it is necessary to disassemble two adjacent vertically arranged brackets, simply apply external force to rotate the drive unit in the opposite direction. The drive unit can compress the mounting part, causing the second connector to move toward the first connector, thus unlocking the first and second connectors. Then, the first connector can slide off the second connector, ensuring that the user can quickly disassemble two adjacent vertically arranged brackets. Attached Figure Description

[0026] Appendix Figure 1 This is a schematic diagram of the first structural design of the light box in this invention;

[0027] Appendix Figure 2 This is a schematic diagram of the second structure of the light box in this invention;

[0028] Appendix Figure 3 This is a schematic diagram of the third structure of the light box in this invention;

[0029] Appendix Figure 4 This is a schematic diagram of the structure of the first connecting device in this invention;

[0030] Appendix Figure 5 This is an exploded structural diagram of the first connecting device in this invention;

[0031] Appendix Figure 6 This is a schematic diagram of the support device in this invention;

[0032] Appendix Figure 7 This is a schematic diagram of the clamping component in this invention;

[0033] Appendix Figure 8 It is attached Figure 7 A structural schematic diagram of the clamping component from another perspective;

[0034] AppendixFigure 9 is a structural schematic diagram of the second connecting device in the application;

[0035] attached Figure 10 is an exploded structural schematic diagram of the second connecting device in the application;

[0036] attached Figure 11 is a structural schematic diagram when two supports are vertically connected in the application;

[0037] attached Figure 12 is a structural schematic diagram when two supports are horizontally connected in the application;

[0038] attached Figure 13 is a structural schematic diagram of the support in the application;

[0039] attached Figure 14 is a structural schematic diagram of the plug-in piece in the application.

[0040] In the figure: 100-frame, 110-support, 111-card slot, 112-mounting slot, 113-positioning hole, 114-connection slot; 200-light source assembly; 300-first connecting device, 310-first connecting piece, 311-guide slot, 312-connection block, 320-second connecting piece, 321-guide block, 322-mounting part, 3221-first pressure receiving end surface, 3222-second pressure receiving end surface, 330-driving piece, 331-driving part, 3311-first extrusion end surface, 3312-second extrusion end surface, 332-control part; 400-supporting device, 410-clamping piece, 411-base part, 412-clamping arm part, 413-connection part, 4131-plug-in slot, 414-pressing part, 420-supporting rod, 430-first reinforcing piece, 431-gap region, 440-second reinforcing piece, 450-clamping region, 451-positioning part, 452-recessed region, 460-plug-in piece; 500-second connecting device, 510-third connecting piece, 511-threaded hole, 512-protruding part, 520-locking nut. Embodiment

[0041] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0042] Reference is made to the accompanying Figure 1 attached Figure 4 , attached Figure 5 , attached Figure 11 and attached Figure 13The first embodiment of the present application provides a detachable light box, comprising a frame 100, a light source assembly 200, and a first connecting device 300. The frame 100 is composed of a plurality of supports 110 connected in sequence at their ends. The frame 100 is provided with mounting slots. The light source assembly 200 is mounted on the frame 100 to provide light source. The first connecting device 300 is used to detachably connect two adjacent and vertically arranged supports 110. The first connecting device 300 comprises a first connecting piece 310 fixedly mounted on the first support 110, a second connecting piece 320 movably mounted on the second support 110, and a driving piece 330 rotatably arranged on the second connecting piece 320. The first connecting piece 310 is provided with a guide slot 311. The second connecting piece 320 is provided with a corresponding guide block 321 near one end of the guide slot 311. The guide block 321 is slidably connected with the guide slot 311. The second connecting piece 320 is further provided with a mounting portion 322. The driving piece 330 is further provided with a driving portion 331. The driving portion 331 is coupled with the mounting portion 322. When an external force is applied to rotate the driving piece 330, the driving piece 330 has a horizontal state and a vertical state. At the same time, the driving portion 331 can press the mounting portion 322 to move the second connecting piece 320 towards or away from the first connecting piece 310 to unlock or lock the first connecting piece 310 and the second connecting piece 320. Further, the first connecting piece 310 and the second connecting piece 320 are respectively mounted on the end portions of the two adjacent and vertically arranged supports 110. In this embodiment, the supports are aluminum alloy profiles. It should be noted that two second connecting pieces 320 are connected with each first connecting piece 310 in parallel. The supports 110 are further provided with two corresponding connecting slots 114. The two second connecting pieces 320 are respectively mounted on the two parallel connecting slots 114.

[0043] By setting the first connecting device 300, and setting the first connecting device 300 includes: the first connecting piece 310, the second connecting piece 320 and the driving piece 330, the first connecting piece 310 is installed on the first support 110, the second connecting piece 320 is installed on the second support 110, the driving piece 330 is rotatably installed on the second connecting piece 320, the guide groove 311 is arranged on the first connecting piece 310, the corresponding guide block 321 is arranged on the second connecting piece 320 close to one end of the guide groove 311, the guide block 321 is in sliding connection with the guide groove 311, the mounting portion 322 is further arranged on the second connecting piece 320, the driving portion 331 is further arranged on the driving piece 330, the driving portion 331 is coupled with the mounting portion 322, so that the user only needs to slide the guide block 321 with the guide groove when installing two adjacent and mutually perpendicular supports 110, then applies external force to control the driving piece 330 to rotate, the driving portion 331 can extrude the mounting portion 322, so that the second connecting piece 320 moves away from the direction of the first connecting piece 310, so that the guide block 321 and the end of the support 110 where the second connecting piece 320 is installed can constitute a clamping part to clamp the side wall of the guide groove 311, so as to lock the first connecting piece 310 and the second connecting piece 320, so as to realize the quick installation of the two adjacent and mutually perpendicular supports 110; when it is needed to disassemble the two adjacent and mutually perpendicular supports 110, only external force is needed to control the driving piece 330 to rotate reversely, the driving portion 331 can extrude the mounting portion 322, so that the second connecting piece 320 moves towards the direction of the first connecting piece 310, so as to unlock the first connecting piece 310 and the second connecting piece 320, then the first connecting piece 310 is slid off from the second connecting piece 320, so as to ensure that the user can quickly complete the disassembly of the two adjacent and mutually perpendicular supports 110.

[0044] In one embodiment, reference is made to the accompanying drawings Figure 5The driving part 331 has a first extrusion end surface 3311, and the mounting part 322 has a corresponding first pressure receiving end surface 3221; when the driving part 330 is rotated from the horizontal state to the vertical state, the first extrusion end surface 3311 can abut against the first pressure receiving end surface 3221, the second connecting part 320 can be driven to move towards the direction of the first connecting part 310, so as to unlock the first connecting part 310 and the second connecting part 320; the driving part 331 also has a second extrusion end surface 3312, and the mounting part 322 also has a corresponding second pressure receiving end surface 3222; when the driving part 330 is rotated from the vertical state to the horizontal state, the second extrusion end surface 3312 can extrude the second pressure receiving end surface 3222, the second connecting part 320 can be driven to move away from the direction of the first connecting part 310, so as to lock the first connecting part 310 and the second connecting part 320. In the embodiment, the first extrusion end surface 3311 and the second extrusion end surface 3312 are both curved surfaces; wherein the curved surface can be a regular curved surface or an irregular curved surface; in the embodiment, the first pressure receiving end surface 3221 and the second pressure receiving end surface 3222 are both planes; in other embodiments, the first pressure receiving end surface 3221 and the second pressure receiving end surface 3222 can be planes, or the last one of the first pressure receiving end surface 3221 and the second pressure receiving end surface 3222 is a plane; no matter whether the first pressure receiving end surface 3221 and the second pressure receiving end surface 3222 are curved surfaces or planes, as long as the first extrusion curved surface can interact with the first pressure receiving curved surface and the second extrusion curved surface can interact with the second pressure receiving curved surface when the driving part 331 rotates.

[0045] In one of the embodiments, a defined position of the driving part 330 in the horizontal state, an operation part 332 is arranged at one end of the driving part 330 away from the mounting part 322, and the operation part 332 is formed by bending the driving part 330 towards the direction away from the second connecting part 320. The arrangement of the operation part 332 enables the user to conveniently operate the driving part 330 by hand, thereby improving the convenience of the driving part 330 when unlocking or locking the support 110.

[0046] In one of the embodiments, the end of the guide groove 311 is open. The arrangement of the opening ensures that the guide block 321 can be separated from the guide groove 311 at the position of the opening when sliding the first connecting part 310 or the second connecting part 320, so as to separate the two supports 110, or enter the guide groove 311 from the position of the opening, so as to connect the two supports 110.

[0047] In one of the embodiments, the first connecting part 310 is also provided with a connecting block 312 for fixing the support 110. In the embodiment, the connecting block 312 is arranged perpendicularly to the second connecting part 320, and in other embodiments, the connecting block 312 can also be arranged perpendicularly to the second connecting part 320.

[0048] In one embodiment, the light source assembly 200 is formed by connecting a plurality of light bars in sequence. By setting the structure of the light source assembly 200, the user can set the length of the light bar according to actual needs. In other embodiments, the light source assembly 200 can also be set as a flexible light strip.

[0049] When the vertical mounting bracket 110 is mounted, first rotate the driving member 330 to the vertical position, the first extrusion end surface 3311 on the driving member 330 can extrude the first pressure receiving end surface 3221 on the mounting portion 322, so that the second connecting member 320 can move towards the direction of the first connecting member 310, so that the guide block 321 and the side wall of the guide groove 311 close to the second connecting member 320 form a predetermined gap, then align the opening of the guide groove 311 on the first connecting member 310 with the guide block 321, push the first connecting member 310 until the bracket 110 connected with the first connecting member 310 slides to the predetermined position, then rotate the driving member 330 in the opposite direction, so that the driving member 330 rotates from the vertical position to the horizontal position, at this time the second extrusion end surface 3312 on the driving member 330 can extrude the second pressure receiving end surface 3222, during the rotation of the driving member 330, the driving member 330 can drive the second connecting member 320 to move away from the first connecting member 310, so that the guide block 321 can abut against the side wall of the guide groove 311 close to the second connecting member 320, that is, the first connecting member 310 and the second connecting member 320 can be locked, so as to realize the vertical connection of the two brackets 110.

[0050] When the vertically connected bracket 110 is disassembled, rotate the driving member 330 from the horizontal position to the vertical position, during this process, the second extrusion end surface 3312 on the driving member 330 can extrude the second pressure receiving end surface 3222 on the mounting portion, so that the driving member 330 can drive the second connecting member 320 to move towards the direction of the first connecting member 310, then the guide block 321 and the side wall of the guide groove 311 close to the second connecting member 320 form a predetermined gap, then slide the first connecting member 310 connected with the bracket 110, so that the guide groove 311 on the first connecting member 310 and the guide block 321 on the second connecting member 320 are disengaged, and the two vertically connected brackets 110 can be disassembled.

[0051] In order to facilitate the carrying, the length of the single support 110 is a certain length. However, the frame 100 has various sizes according to the requirements in use. At present, when the size of the frame 100 is adjusted, the adjacent ends of at least two supports 110 are connected horizontally, so as to adjust the length in the horizontal direction or the length in the vertical direction of the frame 100. However, the stability of the frame 100 as a whole will be poor. When the advertising cloth is installed on the frame 100, the frame 100 is easy to change, which will cause the wrinkles on the advertising cloth, affecting the appearance. Therefore, the support device 400 is arranged on the frame 100. However, the existing support device 400 is generally connected with the support 110 by the screw fixing mode. Thus, the support device 400 is not convenient for mounting on or detaching from the frame 100. Therefore, the second embodiment of the present application provides a detachable light box. Referring to the accompanying drawings, Figure 2 , the accompanying drawings Figure 3 , the accompanying drawings Figure 6 , and the accompanying drawings Figure 7 Different from the above-mentioned embodiments, the light box further comprises a support device 400. The two ends of the support device 400 are respectively clamped and connected with two opposite supports 110, and are used for supporting the frame 100. The support device 400 comprises a support rod 420 and a clamping piece 410 which is detachably mounted on the opposite two ends of the support rod 420 and is used for connecting the support rod 420 on the support 110. The opposite two sides of the clamping piece 410 are further provided with clamping arm portions 412, so that a clamping area 441 is formed on the clamping piece 410. The support 110 is further provided with a corresponding clamping groove 111. The clamping arm portions 412 are clamped on the clamping groove 111. In the embodiment, the clamping piece 410 is clamped at the connection position of the two adjacent horizontally arranged supports 110.

[0052] By arranging the support device 400, the support device 400 comprises a support rod 420 and a clamping piece 410 which is detachably mounted on the opposite two ends of the support rod 420 and is used for connecting the support rod 420 on the support 110. The opposite two sides of the clamping piece 410 are further provided with clamping arm portions 412. The support 110 is further provided with a corresponding clamping groove 111. The clamping arm portions 412 are clamped on the clamping groove 111. Thus, the user can quickly mount or detach the support device 400 on or from the frame 100 through the clamping piece 410. Thus, the convenience of the light box in mounting or detaching is improved under the condition of ensuring the stability of the frame 100.

[0053] In one of the embodiments, referring to the accompanying drawings Figure 7 , the clamping piece 410 is further provided with a connecting portion 413. The connecting portion 413 is provided with a plug-in groove 4131. The end of the support rod 420 is plugged into the plug-in groove 4131.

[0054] In one of the embodiments, referring to the accompanying drawings Figure 7The support device 400 further comprises a first reinforcing member 430 fixed to the connecting portion 413 and the clamping arm portion 412. By fixing the first reinforcing member 430 to the connecting portion 413 and the clamping arm portion 412, the stability of the clamping arm portion 412 connected to the base portion 411 is improved, and the risk of breakage of the clamping arm portion 412 when pressed is reduced. In this embodiment, the first reinforcing member 430 is a right-angled plate, one of the right-angled edges of the right-angled plate is fixed to the connecting portion 413, and the other right-angled edge of the right-angled plate is fixed to the clamping arm portion 412.

[0055] In one of the embodiments, the support device 400 further comprises a first reinforcing member 430 fixed to the connecting portion 413 and the clamping arm portion 412. Figure 7 In one of the embodiments, the first reinforcing member 430 further comprises a notch region 431 on the side wall of the first reinforcing member 430. The notch region 431 is provided to ensure that the first reinforcing member 430 can be deformed within a predetermined range when the user presses the end of the clamping member 410, thereby ensuring that the clamping arm portion 412 can be deformed and bent, so that the user can press the clamping member 410 more easily.

[0056] In one of the embodiments, the clamping member 410 is made of an elastic material. By making the clamping member 410 of an elastic material, the clamping member 410 can provide a clamping force to ensure that the clamping member 410 can be clamped at the corresponding clamping groove 111 of the support 110.

[0057] In one of the embodiments, the support device 400 further comprises a first reinforcing member 430 fixed to the connecting portion 413 and the clamping arm portion 412. Figure 7 The support device 400 further comprises a second reinforcing member 440 fixed to the connecting portion 413 and the base portion 411, and the arrangement direction of the second reinforcing member 440 is perpendicular to the arrangement direction of the first reinforcing member 430.

[0058] In one of the embodiments, the support device 400 further comprises a first reinforcing member 430 fixed to the connecting portion 413 and the clamping arm portion 412. Figure 7 The top of the clamping region 450 is formed with a recessed region 452, the recessed region 452 is formed by the base portion 411 being outwardly recessed towards the support rod 420, and the position of the recessed region 452 is opposite to the mounting groove 112. The provision of the recessed region 452 can avoid interference of the base portion 411 of the clamping member 410 with the light source assembly 200, and ensure that the light source assembly 200 can be mounted into the mounting groove.

[0059] In one of the embodiments, a step portion is formed at the connection between the clamping arm portion 412 and the base portion 411, and a corresponding avoiding portion is further provided on the first reinforcing member 430. It should be understood that, in this embodiment, the step portion is formed by the base portion 411 being outwardly recessed towards the support rod 420 to form a step portion between the base portion 411 and the clamping arm portion 412.

[0060] One of the embodiments, please refer to the attached Figure 8 The clamping area 450 is further provided with a positioning part 451 at the bottom of the clamping arm part 412, and the support 110 is further provided with a corresponding positioning hole 113, and the positioning part 451 is located in the positioning hole 113. By setting the positioning hole 113 and the positioning part 451 in cooperation, the movement of the clamping part 410 in the horizontal direction can be limited, thereby further improving the stability of the support device 400 during installation. In this embodiment, the positioning hole 113 is provided in two groups, and the two groups of positioning holes 113 are respectively located at the ends of the two horizontally arranged supports 110.

[0061] One of the embodiments, please refer to the attached Figure 3 and the attached Figure 14 Each support device 400 comprises at least two support rods 420, and the two support rods 420 are connected by the insertion part 460. In this embodiment, the insertion part can be cross-shaped or T-shaped.

[0062] One of the embodiments, please refer to the attached , the attached

[0063] Since the frame 100 has various sizes according to the needs during use, at present, at least two adjacent ends of the support 110 are horizontally connected to adjust the length of the frame 100 in the horizontal direction or the length of the frame 100 in the vertical direction, therefore, the third embodiment of the present application provides a detachable light box, please refer to the attached Figure 9 , the attached Figure 10 , the attached Figure 12 and the attached Figure 13 Different from the second embodiment, the light box further comprises a second connecting device 500, the second connecting device 500 is used for detachably connecting the two adjacent parallel supports 110, and the second connecting device 500 comprises a third connecting part 510 and a locking nut 520, both ends of the third connecting part 510 are respectively inserted into the two adjacent parallel supports 110, specifically, the third connecting part 510 is inserted into the connecting groove 114 of the support, and the connecting end of the locking nut 520 is rotatably fixed with the third connecting part 510 through the top wall of the support 110.

[0064] By setting the second connecting device 500 comprising a third connecting piece 510 and a locking nut 520, when the user connects two adjacent supports 110 horizontally, first, the two ends of the third connecting piece 510 are inserted into the end of the two supports 110 respectively, then the connecting end of the locking nut 520 is connected through the threaded hole 511 on the third connecting piece 510, then the locking nut 520 is rotated, and then the two adjacent supports 110 are connected in parallel; and when the user disassembles two adjacent and parallel supports 110, only the locking nut 520 needs to be unscrewed, then the two supports 110 are moved in the opposite direction, so that the two supports 110 are separated from the third connecting piece 510, and then the quick disassembly of the two horizontally arranged supports 110 is completed.

[0065] In one embodiment, the third connecting piece 510 is provided with a protrusion 512, and the protrusion 512 extends towards the top wall of the support 110. Figure 10 , the two ends of the third connecting piece 510 are also provided with a protrusion 512, and the protrusion 512 extends towards the top wall of the support 110.

[0066] By setting the protrusion 512, the top wall of the third connecting piece 510 and the top wall of the support 110 can form a predetermined distance, so that when the user tightens the locking nut 520 to fix the support 110 and the third connecting piece 510, the threaded connection part of the locking nut 520 can rotate towards the direction of the third connecting piece 510, so that the third connecting piece 510 can move towards the top of the support 110 in the support 110, and the protrusion 512 can press the top wall of the support 110, so that the third connecting piece 510 can be more stably connected with the support 110, thereby improving the stability of the two adjacent and horizontally arranged supports 110 when connected.

[0067] The above-described embodiments are only one of the more preferred specific ways of the present application, and the usual changes and replacements made by those skilled in the art within the scope of the technical solutions of the present application should be included in the protection scope of the present application.

Claims

1. A dismountable light box, characterized in that, The lamp box comprises a frame (100), a light source assembly (200), a first connecting device (300), and a support device (400). The frame (100) is composed of a plurality of supports (110) connected in sequence at both ends. The light source assembly (200) is installed on the frame (100) to provide a light source. The first connecting device (300) is used to detachably connect two adjacent supports (110) arranged perpendicularly to each other. The first connecting device (300) comprises a first connecting piece (310) fixedly installed on a first support (110), a guide groove (311) being arranged on the first connecting piece (310). A second connecting piece (320) is movably installed on a second support (110), a corresponding guide block (321) being arranged on one end of the second connecting piece (320) close to the guide groove (311), the guide block (321) being in sliding connection with the guide groove (311), and an installation part (322) being further arranged on the second connecting piece (320). A driving piece (330) is rotatably arranged on the second connecting piece (320), a driving part (331) being further arranged on the driving piece (330), the driving part (331) being coupled with the installation part (322). When an external force is applied to rotate the driving piece (330), the driving piece (330) has a horizontal state and a vertical state, and the driving part (331) can press the installation part (322) to move the second connecting piece (320) towards or away from the first connecting piece (310) to unlock or lock the first connecting piece (310) and the second connecting piece (320).

2. The dismountable light box according to claim 1, wherein, The driving part (331) has a first pressing end face (3311), and the installation part (322) has a corresponding first pressure receiving end face (3221).

3. A demountable light box according to claim 2, wherein, When the driving piece (330) is rotated from the horizontal state to the vertical state, the first pressing end face (3311) can abut against the first pressure receiving end face (3221) to move the second connecting piece (320) towards the first connecting piece (310) to unlock the first connecting piece (310) and the second connecting piece (320). The driving part (331) further has a second pressing end face (3312), and the installation part (322) further has a corresponding second pressure receiving end face (3222). When the driving piece (330) is rotated from the vertical state to the horizontal state, the second pressing end face (3312) can press the second pressure receiving end face (3222) to move the second connecting piece (320) away from the first connecting piece (310) to lock the first connecting piece (310) and the second connecting piece (320). The lamp box further comprises a support device (400) for supporting the frame (100). The lamp box further comprises a second connecting device (500) for detachably connecting two adjacent supports (110) arranged in parallel.

4. The demountable light box of claim 1, wherein, The first extrusion end face (3311) and the second extrusion end face (3312) are curved surfaces.

5. A demountable light box according to any one of claims 2, wherein, The support device (400) comprises a clamping piece (410), opposite sides of the clamping piece (410) are further provided with clamping arm portions (412), the support frame (110) is further provided with corresponding clamping grooves (111), and the clamping arm portions (412) are clamped on the clamping grooves (111).

6. A demountable light box according to claim 5, wherein, The clamping piece (410) is further provided with a connecting portion (413), the connecting portion (413) is provided with a plug-in groove (4131), and the support device (400) further comprises a support rod (420), an end of the support rod (420) is plugged into the plug-in groove (4131).

7. A demountable light box according to claim 6, wherein, The support device (400) further comprises a first reinforcing piece (430), and the first reinforcing piece (430) is fixed with the connecting portion (413) and the clamping arm portion (412).

8. A demountable light box according to claim 7, wherein, A notch area (431) is further arranged on a side wall of the first reinforcing piece (430).

9. The demountable light box of claim 3, wherein, The second connecting device (500) comprises: A third connecting piece (510), both ends of the third connecting piece (510) are respectively plugged into two adjacent support frames (110) arranged in parallel; A locking nut (520), a connecting end of the locking nut (520) is rotatably fixed with the third connecting piece (510) by penetrating through a top wall of the support frame (110).

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