Box tensioning mechanism and LED box assembly having the same

Abstract

The present invention provides a tensioning mechanism for a box and an LED box assembly having the same, wherein the tensioning mechanism for the box comprises: a tensioning structure, comprising: a base and a tensioning rod, the base is provided with a mounting portion, the tensioning rod comprises a tensioning pin and an operating portion connected to the tensioning pin, the tensioning pin can be movably inserted into the mounting portion; a connecting member, the connecting member is provided with a matching hole, wherein the tensioning pin comprises a flat shaft, the flat shaft can be inserted into or removed from the matching hole, and when the flat shaft is inserted into the matching hole, the flat shaft has a vertical tensioning position and a horizontal unlocking position. The technical solution of the present application effectively solves the problem in the related art that two adjacent boxes need to use external tools during the tensioning process, making the tensioning operation process complicated.

Description

Technical Field

[0001] The invention relates to the technical field of LED display, and in particular to a tensioning mechanism of a box and an LED box assembly having the same. Background Art

[0002] The LED display screen includes a box assembly and a display screen installed on the box assembly. The box assembly is assembled from multiple boxes. During on-site installation, the bottom of the assembled boxes is greatly deformed, and a gap appears between two adjacent boxes, which seriously affects the display quality of the LED display screen. The related art provides a tensioning mechanism, through which two adjacent boxes can be tightened to reduce the gap.

[0003] The above-mentioned tensioning mechanism includes a connecting column connected to one box body and a tensioning seat connected to another box body. The connecting column passes through the tensioning seat and cooperates with the tensioning nut thread. A spring is provided on the outer sleeve of the connecting column. The spring is located between the tensioning seat and the tensioning nut. A plurality of operating holes are provided on the tensioning nut. The tensioning nut is tightened onto the connecting column by twisting the tensioning nut through the operating hole with the help of an external tool operating rod, thereby tightening the two adjacent boxes.

[0004] However, in the process of tightening the two adjacent boxes, external tools are used, which makes the tightening operation process complicated. In addition, the cost of the LED display screen is high due to the use of external tools. Summary of the invention

[0005] The main purpose of the present invention is to provide a box tensioning mechanism and an LED box assembly having the same, so as to solve the problem in the related art that two adjacent boxes need to be tensioned with the aid of external tools, making the tensioning operation process complicated.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a tensioning mechanism of a box is provided, comprising: a tensioning structure, comprising: a base body and a tensioning rod, the base body is provided with a mounting portion, the tensioning rod comprises a tensioning pin and an operating portion connected to the tensioning pin, the tensioning pin can be movably inserted into the mounting portion; a connecting member, the connecting member is provided with a matching hole, wherein the tensioning pin comprises a flat shaft, the flat shaft can be inserted into or removed from the matching hole, and when the flat shaft is inserted into the matching hole, the flat shaft has a vertical tensioning position and a horizontal unlocking position.

[0007] Furthermore, the mounting portion is a mounting groove, and the tensioning structure further includes a limiting member, which is connected to the seat body and is located at a notch of the mounting groove.

[0008] Furthermore, the tensioning pin also includes a mating section arranged between the flat shaft and the operating part, and the tensioning structure also includes a positioning structure arranged between the mating section and the seat body, so that the flat shaft can be maintained in an inserted position inserted into the mating hole or in a removed position moved out of the mating hole through the positioning structure.

[0009] Furthermore, the positioning structure includes a positioning member, a first positioning hole and a second positioning hole, the first positioning hole is located between the second positioning hole and the flat shaft, the first positioning hole and the second positioning hole are arranged on the mating section, and the seat body is provided with a positioning member, when the positioning member cooperates with the first positioning hole, the flat shaft remains in the removed position, and when the positioning member cooperates with the second positioning hole, the flat shaft remains in the inserted position.

[0010] Furthermore, the positioning structure also includes a limiting hole arranged on the seat body, and the positioning member includes an elastic member and a positioning bead installed in the limiting hole, the elastic member applies elastic force to the positioning bead, the diameter of the first positioning hole and the diameter of the second positioning hole are both smaller than the diameter of the positioning bead, and when the tensioning pin moves, some of the positioning beads have a positioning position located in the first positioning hole or the second positioning hole and an avoidance position that avoids the flat shaft.

[0011] Further, the seat body includes a seat body and a first avoidance gap and a second avoidance gap arranged on the seat body at intervals, the first avoidance gap is located between the second avoidance gap and the flat shaft, the mounting portion is arranged on the seat body, the first avoidance gap and the second avoidance gap are both located on one side of the mounting portion, when part of the operating portion is located in the first avoidance gap, the flat shaft is in an inserted position, and when part of the operating portion is located in the second avoidance gap, the flat shaft is in a removed position.

[0012] Furthermore, the tension rod is bent to form a tension pin and an operating portion; and the limiting member includes a limiting sheet.

[0013] Furthermore, the connecting piece includes a columnar segment and a threaded segment connected to the columnar segment, the diameter of the columnar segment is larger than the diameter of the threaded segment, the matching hole is arranged on the columnar segment, and a rotation-stopping surface is arranged on the columnar segment; wherein the diameter of the flat shaft is smaller than the aperture of the matching hole.

[0014] According to another aspect of the present invention, an LED box assembly is provided, comprising a plurality of boxes and a tensioning mechanism for the boxes, wherein the tensioning mechanism for the boxes is the tensioning mechanism for the boxes described above.

[0015] Furthermore, multiple boxes are spliced ​​together, and there are multiple tensioning mechanisms for the boxes, wherein one of the two boxes spliced ​​up and down is a first box, and the other is a second box, wherein the first box and the second box both include a first side portion, a second side portion, a third side portion and a fourth side portion connected in sequence; wherein the third side portion of the first box is connected to the first side portion of the second box through a tensioning mechanism of a box, wherein the tensioning structure is arranged at the third side portion of the first box, a connecting piece is passed through the first side portion of the second box, and an avoidance hole for avoiding the connecting piece on the second box is arranged on the third side portion of the first box.

[0016] By applying the technical solution of the present invention, the tensioning mechanism of the box includes: a tensioning structure and a connecting piece. The tensioning structure includes: a base body and a tensioning rod. A mounting portion is provided on the base body, and the tensioning rod includes a tensioning pin and an operating portion connected to the tensioning pin. In this way, the provision of the operating portion facilitates the installation personnel to operate the tensioning rod. The tensioning pin can be movably inserted into the mounting portion. A matching hole is provided on the connecting piece. In the present application, the tensioning pin includes a flat shaft, and the flat shaft can be inserted into or removed from the matching hole. When the flat shaft is inserted into the matching hole, the flat shaft has a vertical tensioning position and a horizontal unlocking position. When the flat shaft is inserted into the matching hole, the flat shaft can apply force to the hole wall of the matching hole when the flat shaft is in the vertical tensioning position, and the flat shaft can not apply force to the hole wall of the matching hole when the flat shaft is in the horizontal unlocking position. During the tensioning process of two adjacent boxes, the connecting piece can be connected to one box, the tensioning structure can be connected to the other box, and the tensioning rod can be moved to insert the flat shaft into the matching hole. The flat shaft is switched from the horizontal unlocking position to the vertical tensioning position. At this time, the flat shaft applies force to the hole wall of the matching hole to tighten the two adjacent boxes. In this way, during the tensioning process of the two adjacent boxes, the two adjacent boxes can be tightened without the aid of external tools (operating rods), which simplifies the tensioning operation process and reduces the gap. Therefore, the technical solution of the present application effectively solves the problem in the related art that the tensioning process of the two adjacent boxes requires the aid of external tools, which makes the tensioning operation process complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of a three-dimensional structure showing that a tensioning structure and a connecting member are both installed on a box according to an embodiment of a tensioning mechanism of a box according to the present invention;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the partial structure of the tensioning mechanism of the box;

[0020] Figure 3 Shows Figure 1 A schematic diagram of the three-dimensional structure of the connecting piece of the tensioning mechanism of the box;

[0021] Figure 4 Shows Figure 1 A schematic diagram of a three-dimensional structure in which a tensioning structure of a tensioning mechanism of a box is installed on a box;

[0022] Figure 5 Shows Figure 4 An enlarged schematic diagram of the tensioning mechanism of the box at point A;

[0023] Figure 6 Shows Figure 1 A schematic diagram of a three-dimensional structure after a tensioning rod of a tensioning mechanism of a box is removed from a box;

[0024] Figure 7 Shows Figure 6 An enlarged schematic diagram of the tensioning mechanism of the box at point B;

[0025] Figure 8 Shows Figure 7 A partial cross-sectional schematic diagram of a tensioning mechanism of a box;

[0026] Fig. 9 A schematic diagram of the three-dimensional structure of an embodiment of an LED box assembly according to the present invention is shown;

[0027] Fig.10 Shows Fig. 9 An enlarged schematic diagram of the LED cabinet assembly at position C;

[0028] Fig.11 Shows Fig. 9 An enlarged schematic diagram of a LED cabinet assembly at D; and

[0029] Fig.12 Shows Fig. 9 An enlarged schematic diagram of point E of the LED cabinet assembly.

[0030] The above drawings include the following reference numerals:

[0031] 10. tensioning structure; 11. seat body; 111. mounting portion; 112. limiting hole; 113. seat body; 1131. first avoidance gap; 1132. second avoidance gap; 12. tensioning rod; 121. tensioning pin; 1211. flat shaft; 1212. matching section; 122. operating portion; 13. limiting member; 14. positioning structure; 141. first positioning hole; 142. positioning member; 1421. elastic member; 1422. positioning bead; 143. second positioning hole; 20. connecting member; 21. matching hole; 22. columnar section; 221. anti-rotation surface; 23. threaded section; 30. box body; 31. first side portion; 331. avoidance hole; 32. second side portion; 33. third side portion; 34. fourth side portion. DETAILED DESCRIPTION

[0032] 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, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0035] like Figures 1 to 5 , Fig.11 As shown, the tensioning mechanism of the box body of this embodiment includes: a tensioning structure 10 and a connecting member 20. The tensioning structure 10 includes: a base body 11 and a tensioning rod 12. A mounting portion 111 is provided on the base body 11, and the tensioning rod 12 includes a tensioning pin 121 and an operating portion 122 connected to the tensioning pin 121. The tensioning pin 121 is movably inserted into the mounting portion 111. A matching hole 21 is provided on the connecting member 20. In this embodiment, the tensioning pin 121 includes a flat shaft 1211, and the flat shaft 1211 can be inserted into or removed from the matching hole 21. When the flat shaft 1211 is inserted into the matching hole 21, the flat shaft 1211 has a vertical tensioning position and a horizontal unlocking position.

[0036] Applying the technical solution of this embodiment, the tensioning rod 12 includes a tensioning pin 121 and an operating portion 122 connected to the tensioning pin 121. In this way, the provision of the operating portion 122 facilitates the installation personnel to operate the tensioning rod 12. In this embodiment, the tensioning pin 121 includes a flat shaft 1211, and the flat shaft 1211 can be inserted into or removed from the matching hole 21. When the flat shaft 1211 is inserted into the matching hole 21, the flat shaft 1211 has a vertical tensioning position and a horizontal unlocking position. When the flat shaft 1211 is inserted into the matching hole 21, the flat shaft 1211 can apply force to the hole wall of the matching hole 21 when the flat shaft 1211 is in the vertical tensioning position, and the flat shaft 1211 can not apply force to the hole wall of the matching hole 21 when the flat shaft 1211 is in the horizontal unlocking position. During the tightening process of two adjacent boxes, the connecting piece 20 can be connected to one box, the tightening structure 10 can be connected to the other box, and the movable tightening rod 12 can be used to insert the flat shaft 1211 into the matching hole 21. The flat shaft 1211 is switched from the horizontal unlocking position to the vertical tightening position. At this time, the flat shaft 1211 applies force to the hole wall of the matching hole 21 to tighten the two adjacent boxes. In this way, during the tightening process of the two adjacent boxes, the two adjacent boxes can be tightened without the aid of external tools (operating rods), which simplifies the tightening operation process and reduces the gap. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the two adjacent boxes need to use external tools during the tightening process, making the tightening operation process complicated.

[0037] It should be noted that the flat shaft 1211 of this embodiment has a long axis and a short axis. The vertical tension position refers to the long axis of the flat shaft 1211 being in a vertical state, and the horizontal unlocking position refers to the short axis of the flat shaft 1211 being in a vertical state. The flat shaft 1211 is switched between the unlocking position and the vertical tensioning position by rotating.

[0038] like Figures 2 to 7As shown, in order to facilitate processing and forming, the mounting portion 111 is a mounting groove. The tensioning structure 10 also includes a limiter 13, which is connected to the seat body 11 and is located at the notch of the mounting groove. The limiter 13 can limit the tensioning rod 12 to the mounting groove to prevent the tensioning pin 121 from being separated from the mounting groove during movement in the mounting groove.

[0039] like Figures 4 to 7 As shown, the tension pin 121 also includes a matching section 1212 disposed between the flat shaft 1211 and the operating portion 122. The flat shaft 1211 and the operating portion 122 are respectively connected to the two ends of the matching section 1212. In order to ensure that the flat shaft 1211 can be stably maintained in the inserted matching hole 21 or moved out of the matching hole 21, the tensioning structure 10 also includes a positioning structure 14 disposed between the matching section 1212 and the seat body 11. The positioning structure 14 is used to maintain the flat shaft 1211 in the inserted position in the matching hole 21 or in the removed position outside the matching hole 21.

[0040] like Figures 4 to 8 As shown, the positioning structure 14 includes a positioning member 142, a first positioning hole 141 and a second positioning hole 143. The first positioning hole 141 is located between the second positioning hole 143 and the flat shaft 1211, and the first positioning hole 141 and the second positioning hole 143 are provided on the matching section 1212. A positioning member 142 is provided on the seat body 11. When the positioning member 142 cooperates with the first positioning hole 141, the flat shaft 1211 is kept in the removed position, and when the positioning member 142 cooperates with the second positioning hole 143, the flat shaft 1211 is kept in the inserted position. In this way, when the positioning member 142 cooperates with the first positioning hole 141, the flat shaft 1211 can be stably kept in the removed position, and when the positioning member 142 cooperates with the second positioning hole 143, the flat shaft 1211 can be stably kept in the inserted position. The positioning member 142 cooperates with the first positioning hole 141 and the second positioning hole 143 respectively, so that the positioning structure 14 has a simple structure and good economy.

[0041] like Figures 4 to 8As shown, the positioning structure 14 also includes a limiting hole 112 arranged on the seat body 11. The positioning member 142 includes an elastic member 1421 and a positioning bead 1422 installed in the limiting hole 112. The elastic member 1421 applies elastic force to the positioning bead 1422. In this way, the setting of the limiting hole 112 prevents the elastic member 1421 and the positioning bead 1422 from escaping from the limiting hole 112. Specifically, the mouth of the limiting hole 112 has an arc-shaped cavity, and the arc-shaped cavity is stuck in the radial position of the positioning bead 1422, which effectively prevents the positioning bead 1422 from escaping from the limiting hole 112 under the action of the elastic force. At the same time, the positioning bead 1422 and the hole wall of the limiting hole 112 can limit the two ends of the elastic member 1421, so that the elastic member 1421 is always in a stressed state. The diameter of the first positioning hole 141 and the diameter of the second positioning hole 143 are both smaller than the diameter of the positioning bead 1422. When the tension pin 121 moves, part of the positioning beads 1422 has a positioning position located in the first positioning hole 141 or the second positioning hole 143 and an avoidance position avoiding the flat shaft 1211 . Specifically, when the positioning member 142 cooperates with the first positioning hole 141, part of the positioning beads 1422 is located in the first positioning hole 141, constraining the matching segment 1212 in four directions of up, down, left and right. The limiting member 13 and part of the positioning beads 1422 work together to limit the matching segment 1212 between the positioning beads 1422 and the limiting member 13, preventing the matching segment 1212 from moving in the installation groove. When the positioning member 142 cooperates with the second positioning hole 143, part of the positioning beads 1422 is located in the second positioning hole 143, constraining the matching segment 1212 in four directions of up, down, left and right. The limiting member 13 and part of the positioning beads 1422 can work together to limit the matching segment 1212 between the positioning beads 1422 and the limiting member 13, preventing the matching segment 1212 from moving in the installation groove.

[0042] like Figures 5 to 7 As shown, the seat body 11 includes a seat body 113 and a first avoidance notch 1131 and a second avoidance notch 1132 arranged at intervals on the seat body 113. The first avoidance notch 1131 is located between the second avoidance notch 1132 and the flat shaft 1211, and the mounting portion 111 is arranged on the seat body 113. The first avoidance notch 1131 and the second avoidance notch 1132 are both located on one side of the mounting portion 111. When part of the operating portion 122 is located in the first avoidance notch 1131, the flat shaft 1211 is in an inserted position, and when part of the operating portion 122 is located in the second avoidance notch 1132, the flat shaft 1211 is in a removed position. In this way, the first avoidance notch 1131 and the second avoidance notch 1132 can avoid the operating portion 122, avoiding interference between the operating portion 122 and one side of the mounting portion 111, so that the operating portion 122 can stand on the seat body 113, and at the same time, it can save the internal space of the box, making the structure in the box (such as signal lines or power lines or control panels) more compact. The flat shaft 1211 is switched between the insertion position and the removal position by moving.

[0043] like Figures 5 to 7 As shown, in order to optimize the structural layout and facilitate production, manufacturing and installation, the tension rod 12 is bent to form a tension pin 121 and an operating portion 122. In this way, when the tension pin 121 is rotated by the operating portion 122, the operation is time-saving and labor-saving.

[0044] like Figures 2 to 5 As shown, the limiting member 13 includes a limiting plate. The limiting plate has a simple structure and is easy to process and form. Specifically, an arc groove is provided on the side of the limiting plate facing the mating section 1212, and the arc groove is adapted to the shape of the mating section 1212. When the limiting member 13 and part of the positioning beads 1422 work together, the limiting member 13 can be attached to the outer side of the mating section 1212, and there is a large contact area between the two, and the limiting effect is better.

[0045] like Figure 1 and Figure 3 , Fig.10 and Fig.11 As shown, the connector 20 includes a columnar section 22 and a threaded section 23 connected to the columnar section 22. The diameter of the columnar section 22 is larger than the diameter of the threaded section 23, so that a step surface is formed between the columnar section 22 and the threaded section 23, and the step surface can be stopped on the side of the box body. The arrangement of the threaded section 23 facilitates connection to a box body. In order to make the threaded section 23 more reliably connected to a box body, the connector 20 also includes a nut matched with the threaded section 23, so that the nut and the columnar section 22 are clamped on a partial structure of a box body. The matching hole 21 is arranged on the columnar section 22. In the process of tightening the nut on the threaded section 23, in order to prevent the columnar section 22 from rotating relative to a box body, a rotation-stopping surface 221 is arranged on the columnar section 22. At the same time, when the tension rod is rotated, the torque can also be shortened, which is more labor-saving when tightening. The flat shaft 1211 is smoothly inserted into or removed from the matching hole 21, and the diameter of the flat shaft 1211 is smaller than the aperture of the matching hole 21.

[0046] The present application also provides an LED box assembly, such as Figures 9 to 12 As shown, the LED box assembly includes a plurality of boxes 30 and a box tensioning mechanism, and the box tensioning mechanism is the above-mentioned box tensioning mechanism. Since the above-mentioned box tensioning mechanism can solve the problem in the related art that two adjacent boxes need to use external tools during the tensioning process, making the tensioning operation process complicated, the LED box assembly including the box tensioning mechanism can solve the same technical problem.

[0047] like Figures 9 to 12As shown, two boxes 30 are spliced ​​together, and there are four tensioning mechanisms of the boxes. The first box and the second box are both provided with tensioning mechanisms of the two boxes. Among them, one box 30 of the two boxes 30 spliced ​​up and down is the first box, and the other is the second box, wherein the first box and the second box both include a first side portion 31, a second side portion 32, a third side portion 33 and a fourth side portion 34 connected in sequence. Among them, the third side portion 33 of the first box is connected to the first side portion 31 of the second box through a tensioning mechanism of a box, wherein the tensioning structure 10 is arranged at the third side portion 33 of the first box, the connecting member 20 is penetrated on the first side portion 31 of the second box, and the third side portion 33 of the first box is provided with an avoidance hole 331 for avoiding the connecting member 20 on the second box. The setting of the avoidance hole 331 facilitates the third side portion 33 of the first box to avoid the connecting member 20, so that the connecting member 20 can pass through the third side portion 33 of the first box. Specifically, after the first box body and the second box body are spliced ​​together, the installer operates the operating part 122 to pull outward, and then pushes it to the right, so that the flat shaft 1211 of the tensioning pin 121 is completely inserted into the matching hole 21 on the columnar section 22, and then operates the operating part 122 to pull it up to the first avoidance gap 1131. At this time, the flat shaft 1211 rotates from the horizontal unlocking position to the vertical tightening position, and the tensioning mechanism of the box body can tighten the upper and lower first box body and the second box body. The number of spliced ​​and matched boxes 30 may not be limited to two, but may also be four, six or more. The number of tensioning mechanisms of the box body may not be limited to four, and may also be increased or decreased according to the number of spliced ​​and matched boxes 30.

[0048] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A box tensioning mechanism, characterized in that: include: A tensioning structure (10) comprises: a seat body (11) and a tensioning rod (12), wherein the seat body (11) is provided with a mounting portion (111), the tensioning rod (12) comprises a tensioning pin (121) and an operating portion (122) connected to the tensioning pin (121), and the tensioning pin (121) is movably inserted into the mounting portion (111); A connecting piece (20), wherein the connecting piece (20) is provided with a matching hole (21), The tensioning pin (121) comprises a flat shaft (1211), the flat shaft (1211) can be inserted into or removed from the matching hole (21), and when the flat shaft (1211) is inserted into the matching hole (21), the flat shaft (1211) has a vertical tensioning position and a horizontal unlocking position; The flat shaft (1211) has a long axis and a short axis, the vertical tensioning position is when the long axis of the flat shaft (1211) is in a vertical state, and the lateral unlocking position is when the short axis of the flat shaft (1211) is in the vertical state; The tensioning pin (121) further comprises a matching section (1212) arranged between the flat shaft (1211) and the operating portion (122); the tensioning structure (10) further comprises a positioning structure (14) arranged between the matching section (1212) and the seat body (11); the positioning structure (14) enables the flat shaft (1211) to be maintained at an inserted position inserted into the matching hole (21) or at a removed position removed from the matching hole (21); The positioning structure (14) comprises a positioning member (142), a first positioning hole (141) and a second positioning hole (143); the first positioning hole (141) is located between the second positioning hole (143) and the flat shaft (1211); the first positioning hole (141) and the second positioning hole (143) are provided on the matching section (1212); the positioning member (142) is provided on the seat body (11); when the positioning member (142) matches with the first positioning hole (141), the flat shaft (1211) is maintained at the removed position; when the positioning member (142) matches with the second positioning hole (143), the flat shaft (1211) is maintained at the inserted position.

2. The box tensioning mechanism according to claim 1, characterized in that: The mounting portion (111) is a mounting groove, and the tensioning structure (10) further comprises a limiting member (13), wherein the limiting member (13) is connected to the seat body (11) and is located at a notch of the mounting groove.

3. The box tensioning mechanism according to claim 1, characterized in that: The positioning structure (14) further comprises a limiting hole (112) arranged on the seat body (11); the positioning member (142) comprises an elastic member (1421) and a positioning bead (1422) installed in the limiting hole (112); the elastic member (1421) applies elastic force to the positioning bead (1422); the diameter of the first positioning hole (141) and the diameter of the second positioning hole (143) are both smaller than the diameter of the positioning bead (1422); when the tension pin (121) moves, part of the positioning bead (1422) has a positioning position located in the first positioning hole (141) or the second positioning hole (143) and an avoidance position avoiding the flat shaft (1211).

4. The box tensioning mechanism according to claim 1, characterized in that: The seat body (11) comprises a seat body (113) and a first avoidance notch (1131) and a second avoidance notch (1132) arranged at intervals on the seat body (113); the first avoidance notch (1131) is located between the second avoidance notch (1132) and the flat shaft (1211); the mounting portion (111) is arranged on the seat body (113); the first avoidance notch (1131) and the second avoidance notch (1132) are both located on one side of the mounting portion (111); when part of the operating portion (122) is located in the first avoidance notch (1131), the flat shaft (1211) is in the inserted position; when part of the operating portion (122) is located in the second avoidance notch (1132), the flat shaft (1211) is in the removed position.

5. The box tensioning mechanism according to claim 2, characterized in that: The tension rod (12) is bent to form the tension pin (121) and the operating portion (122); the limiting member (13) comprises a limiting sheet.

6. The box tensioning mechanism according to claim 1, characterized in that: The connecting piece (20) comprises a columnar segment (22) and a threaded segment (23) connected to the columnar segment (22); the diameter of the columnar segment (22) is greater than the diameter of the threaded segment (23); the matching hole (21) is arranged on the columnar segment (22); and a rotation-stopping surface (221) is arranged on the columnar segment (22); wherein the diameter of the flat shaft (1211) is smaller than the hole diameter of the matching hole (21).

7. An LED box assembly, comprising a plurality of boxes (30) and a box tensioning mechanism, characterized in that: The box body tensioning mechanism is the box body tensioning mechanism according to any one of claims 1 to 6.

8. The LED box assembly according to claim 7, characterized in that: A plurality of the boxes (30) are spliced ​​together, and the box tensioning mechanisms are multiple, wherein one of the two boxes (30) spliced ​​together is a first box, and the other is a second box, wherein the first box and the second box both include a first side portion (31), a second side portion (32), a third side portion (33), and a fourth side portion (34) connected in sequence; The third side portion (33) of the first box body is connected to the first side portion (31) of the second box body via a tensioning mechanism of the box body, wherein the tensioning structure (10) is arranged at the third side portion (33) of the first box body, the connecting member (20) is passed through the first side portion (31) of the second box body, and an avoidance hole (331) is arranged on the third side portion (33) of the first box body for avoiding the connecting member (20) on the second box body.

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