A display screen cabinet capable of realizing arc splicing

Abstract

The present invention relates to the field of display screen technology, and in particular to a display screen cabinet capable of arc splicing. The display screen cabinet comprises a first assembly unit and a second assembly unit, wherein an arc lock is provided at the joint between the first assembly unit and the second assembly unit, and the side walls where the first assembly unit and the second assembly unit meet form an acute angle with their display planes. Connecting locks are provided on the side walls of the first assembly unit and the second assembly unit other than those where they meet each other. When the display screen cabinets are spliced, the connecting locks on adjacent display screen cabinets are connected to each other in a corresponding manner. The display screen cabinet capable of arc splicing obtained by the present invention can achieve angle adjustment between the first assembly unit and the second assembly unit, and can also quickly achieve assembly and splicing between adjacent display screen cabinets.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display screens, and in particular to a display screen box capable of realizing arc splicing. Background Art

[0002] At present, in the process of splicing display cabinets, in order to achieve an arc-shaped structure, angle mounting plates are generally used to splice LED display screens. They are all fixed with bolts, and the angle of the display screen cannot be adjusted. The splicing angle of the LED display screen can only be changed by replacing the angle mounting plates. This makes the splicing and adjustment process troublesome, and there are discrete components in high-altitude operations, which poses a safety hazard and is not suitable for rental occasions.

[0003] Therefore, a display screen cabinet is needed, which can adjust the curvature of the display screen cabinet and realize rapid assembly between adjacent display screen cabinets. Summary of the Invention

[0004] In order to solve the above technical deficiencies, the present invention provides a display screen box capable of realizing arc splicing, which can realize angle adjustment of the display screen box and enable rapid assembly between adjacent display screen boxes.

[0005] The present invention discloses a display screen box capable of realizing arc splicing, comprising a first assembling unit and a second assembling unit, wherein an arc lock is provided at the joint of the first assembling unit and the second assembling unit, and the side walls where the first assembling unit and the second assembling unit are joined form an acute angle with their display planes, and connecting lock buckles are provided on the side walls of the first assembling unit and the second assembling unit except for the side walls where they are joined to each other; when the display screen boxes are spliced, the connecting lock buckles on adjacent display screen boxes are connected to each other in a corresponding manner.

[0006] A corrugated tube may be provided between the first assembling unit and the second assembling unit, and the signal line and the power line between the two may pass through the corrugated tube, so that the signal line and the power line will not be damaged during the process of adjusting the curvature.

[0007] In the above solution, when splicing display cabinets, adjacent display cabinets can be quickly spliced ​​together using connecting locks, and the angle or curvature of the display cabinet can be adjusted using the curvature locks between the first and second assembly units of the display cabinet, greatly improving the speed and efficiency of assembly. Generally, the number of curvature locks connected is selected based on the size of the first and second assembly units, and generally two is sufficient.

[0008] The cam lock has a structure that comprises a rotating shaft, a first mounting seat, a second mounting seat, a first rotating member and a second rotating member, wherein an axis hole is provided on the first rotating member and the second rotating member, and the first rotating member and the second rotating member are both provided with an axis hole. The first rotating member and the second rotating member are rotatably connected to the rotating shaft through the axis hole, and the second rotating member is fixedly connected to the rotating shaft. One end of the first rotating member is rotatably connected to the first mounting seat through a pin through the other end of the first rotating member is connected to the first connecting member through the pin, and one end of the second rotating member is rotatably connected to the second mounting seat through the pin, and the other end of the second rotating member is connected to the second connecting member through the pin, and the second connecting member is rotatably connected to the first mounting seat through the pin; a guide hole is provided on the first rotating member, and the guide hole extends into the axis hole, and a positioning column is provided in the guide hole, and a plurality of positioning holes are spaced apart on the circumference of the rotating shaft corresponding to the guide hole.

[0009] The first mounting seat and the second mounting seat are respectively connected to the first assembling unit and the second assembling unit of the display screen box.

[0010] In the above scheme, the first rotating member and the second rotating member are connected together by a rotating shaft, and the first rotating member and the second rotating member can achieve relative rotation between them. During the relative rotation process, the angle between the first mounting seat and the second mounting seat can be adjusted, that is, the angle between the first assembly unit connected to the first mounting seat and the second assembly unit connected to the second mounting seat can be adjusted. The positioning holes can be set according to the conventional adjustment angle of the display cabinet, such as the angle between the first assembly unit on the first mounting seat and the second assembly unit on the second mounting seat is 0°, 15°, 18°, 40°, 90°, etc. At each angular position, a positioning hole is set at the position corresponding to the positioning post. Therefore, in the subsequent adjustment process, it is only necessary to rotate the first rotating member and the second rotating member so that the positioning post aligns with the corresponding positioning hole to determine the splicing angle of the first and second assembly units. Similarly, the first rotating member and the second rotating member are rotated according to the required splicing angle and the positioning post is docked in the corresponding positioning hole. Of course, the corresponding angle of the positioning hole can be designed according to actual needs, including but not limited to the above examples.

[0011] A fixing sleeve is disposed within the guide hole, with one end of the fixing sleeve exposed to the outside of the first rotating member. An inwardly facing protrusion is provided at the end of the fixing sleeve outside the first rotating member. The positioning post is disposed within the fixing sleeve and also has a protrusion. A compression spring is sleeved on the positioning post within the fixing sleeve, with the ends of the compression spring respectively abutting against the protrusion of the fixing sleeve and the protrusion of the positioning post. The end of the positioning post extends outside the fixing sleeve, and a pull handle is provided on the positioning post outside the fixing sleeve. The compression spring, acting between the protrusion of the fixing sleeve and the protrusion of the positioning post, exerts a force on the positioning post to move into the shaft hole. In a natural state, the end of the positioning post is inserted into the positioning hole. To adjust the angle of the display screen housing, the handle can be pulled outward to pull the positioning post. The positioning post overcomes the force of the compression spring and moves out of the positioning hole, thereby releasing the alignment between the first rotating member and the rotating shaft, allowing the two to move relative to each other.

[0012] At least one recessed hole is axially provided at the end of the fixed sleeve outside the first rotating member, and a positioning inhibiting pin is provided on the pulling handle at the position corresponding to the recessed hole. When the positioning inhibiting pin is inserted into the recessed hole, the end of the positioning column is located in the positioning hole of the rotating shaft. When the positioning inhibiting pin is located outside the recessed hole, the end of the positioning column is located in the fixed sleeve. During adjustment, the positioning column can be pulled out of the positioning hole by pulling the handle, and the pulling handle is rotated to cause the positioning inhibiting pin to be misaligned with the recessed hole. At this time, after releasing the pulling handle, the positioning inhibiting pin abuts against the end of the fixed sleeve, thereby releasing the positioning column from the positioning hole, making it easier to adjust the angle of the display screen box. When multiple arc locks can be provided on the display screen box, the positioning inhibiting pins of all arc locks can be pressed against the fixed sleeve, so that all positioning columns are released from the positioning holes, facilitating angle adjustment and improving adjustment efficiency.

[0013] A limiting protrusion is provided at one end of the rotating shaft. The first rotating member contacts the limiting protrusion, and the second rotating member contacts the first rotating member. A tightening screw is provided on the second rotating member, and the tightening screw is used to fix the second rotating member to the rotating shaft. The first rotating member and the second rotating member need to limit their axial displacement on the rotating shaft. Therefore, a limiting protrusion is provided at one end of the rotating shaft. The first rotating member is directly sleeved on the rotating shaft through the shaft hole to achieve rotational connection and axial limitation. After the second rotating member is sleeved on the rotating shaft, it is directly fixed by the tightening screw. This can achieve axial and circumferential fixation between the second rotating member and the rotating shaft, which is simple and convenient.

[0014] An angle indicator line is provided on the side wall of the first rotating member where the first rotating member and the first connecting member are connected, and an angle reference line is provided on the first connecting member; an angle indicator line is also provided on the side wall of the second rotating member where the second rotating member and the second connecting member are connected, and an angle reference line is provided on the second connecting member. Depending on the actual situation, angle reference lines are provided on both the first connecting member and the second connecting member. During the adjustment process, after the angle corresponding to the positioning hole is adjusted, an angle indicator line can be provided for the relative position between the first rotating member and the first connecting member, and an angle indicator line is also provided for the relative position between the second rotating member and the second connecting member. The angle indicator line and the angle reference line can correspond to each other, so that the angle between the first assembly unit and the second assembly unit can be clearly and intuitively understood. At the same time, during the adjustment process, the position of the required angle adjustment can be determined based on the corresponding relationship between the angle indicator line and the angle reference line, thereby improving the convenience of adjustment.

[0015] The structure of the connecting lock buckle is as follows: a first lock core hole and a second lock core hole are provided on the side walls of the first assembling unit and the second assembling unit, and the first lock core hole and the second lock core hole on the side walls of adjacent display screen boxes are connected when the display screen boxes are spliced, a lock core shaft is passed through the first lock core hole, a handle is provided at the end of the lock core shaft at one end of the first lock core hole, and at least two first bosses are provided at intervals on the inner wall of the second lock core hole, the surface of the first boss away from the end of the first lock core hole is an inclined surface, and a second boss is provided at the end of the lock core shaft away from the handle, the number of the second bosses is the same as the number of the first bosses, and the width of the second bosses is smaller than the gap between adjacent first bosses.

[0016] After the first assembly unit and the second assembly unit are docked, a rectangular structure is formed. A first lock core hole is set on two of the four side walls of the rectangular structure, and a second lock core hole is set on the other two side walls. When the display screen boxes are spliced, the second lock core hole can always be made to correspond to the first lock core hole, thereby realizing the connection between adjacent LED display screens. After the lock core shaft in the first lock core hole is inserted into the second lock core hole, the lock core shaft is rotated to cause the second boss at the end of the lock core shaft to contact the first boss on the second lock core hole. Since the end face of the first boss is a slope, the first boss and the second boss of the lock core shaft can be tensioned during the rotation of the lock core shaft, thereby realizing the connection between two adjacent display screen boxes. At the same time, the above-mentioned connection structure is simple and quick to assemble, which can improve the splicing efficiency of the display screen boxes.

[0017] A circumferential groove is provided on the lock core shaft within the range of the first lock core hole, and a limit pin is provided inside the side walls of the first and second assembly units corresponding to the first lock core hole, with the end of the limit pin extending into the circumferential groove. The limit pin cooperates with the circumferential groove on the lock core shaft to achieve axial limitation of the lock core shaft within the first lock core hole, allowing it to rotate circumferentially only within the first lock core hole, thereby ensuring stability and reliability when the lock core shaft cooperates with the second lock core hole.

[0018] A screw hole is provided on the side wall of the first and second assembly units. One end of the stop pin is provided with an external thread. The stop pin is disposed in the screw hole. A set screw is disposed in the screw hole outside the stop pin. The set screw is tightened against the stop pin and defines the position of the stop pin. This structure can fix the stop pin, and the end of the stop pin penetrates the first lock core hole to a sufficient depth to prevent the stop pin from completely abutting the lock core shaft, thereby preventing the lock core shaft from rotating. This improves the stability of the lock core shaft.

[0019] A locking sleeve is positioned within the second lock core hole and secured with a jack bolt. The first boss is positioned on the inner wall of the locking sleeve, and the lock core shaft is inserted into the locking sleeve. The design of the locking sleeve facilitates the machining of the second boss and offers excellent versatility. Therefore, only one through-hole is required in each of the first and second assembly units, into which the locking sleeve is mounted, significantly simplifying the machining of the display cabinet.

[0020] An axial groove is provided on the lock core shaft, one end of the axial groove is connected to the circumferential groove, and the other end extends to the second boss, and when the end of the limit pin is located in the axial groove, the second boss corresponds to the gap between the adjacent first bosses. The design of the axial groove enables the lock core shaft to rotate the end of the limit pin from the circumferential groove into the axial groove during the rotation process. At this time, the lock core shaft can be axially displaced in the first lock core hole, so that the lock core shaft can be pulled out of the second lock core hole, and the two display screen boxes can be quickly released. Of course, the length of the axial groove on the lock core shaft can be based on the following conditions: when the lock core shaft moves to the end where the limit pin is located in the axial groove close to one end of the second boss, the end of the lock core shaft is completely located in the first lock core hole. This structure makes it easier to install the display cabinets into designated areas during the splicing process. For example, if two, three, or even four adjacent display cabinets have been installed and the missing display cabinet is installed in the gap, the lock core shaft will not interfere with the installation of the display cabinet after entering the first lock core hole, thereby improving its convenience.

[0021] The radial cross-section of the lock core shaft is square, and the two sides of the square are transitioned by a first arc. The radial cross-section of the inner wall of the lock sleeve is formed by alternating four second arcs and four third arcs, and the radius of the second arc is consistent with the radius of the first arc. The radius of the third arc is larger than the radius of the second arc. When the second boss on the lock core shaft cooperates and locks with the first boss in the lock sleeve, the first arc on the lock core shaft corresponds to the second arc of the lock sleeve.

[0022] When the limit pin is located in the axial groove, the first arc of the lock core shaft corresponds to the third arc of the lock sleeve. At this time, the lock core shaft and the lock sleeve can move axially more freely. When the lock core shaft and the lock sleeve are locked together, the first arc of the lock core shaft corresponds to the second arc of the lock sleeve. At this time, the two cooperate with each other to generate a certain friction force. During use, the lock core shaft has a certain self-locking ability and will not rotate autonomously to cause release.

[0023] The display screen box body capable of realizing arc splicing obtained by the present invention can realize angle adjustment between a first assembling unit and a second assembling unit, and can also realize rapid assembly and splicing between adjacent display screen boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is an explosion diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the front structure of the arc lock of the present invention;

[0027] Figure 4 This is a schematic diagram of the back structure of the arc lock of the present invention;

[0028] Figure 5 Schematic diagram of the explosion of the arc lock of the present invention;

[0029] Figure 6 The structure diagram of the lock core shaft and lock sleeve of the present invention is shown as follows: Figure 1 ;

[0030] Figure 7 The structure diagram of the lock core shaft and lock sleeve of the present invention is shown as follows: Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the coordination of multiple display screen boxes of the present invention;

[0032] Figure 9 for Figure 8 Schematic diagram of CC cross section;

[0033] Figure 10 for Figure 9 An enlarged schematic diagram of point C;

[0034] Figure 11 for Figure 9 An enlarged schematic diagram of point D;

[0035] Figure 12 for Figure 8 AA cross-section diagram;

[0036] Figure 13 for Figure 12 Enlarged schematic diagram of point B. DETAILED DESCRIPTION

[0037] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0038] Example 1:

[0039] like Figure 1 、 Figure 2 As shown, the present invention discloses a display screen box that can achieve arc splicing, including a first assembling unit 1 and a second assembling unit 2, a radian lock 3 is provided at the joint of the first assembling unit 1 and the second assembling unit 2, the side wall where the first assembling unit 1 and the second assembling unit 2 are joined forms an acute angle with their display plane, and connecting locks 4 are provided on the side walls of the first assembling unit 1 and the second assembling unit 2 except for the side walls where they are joined to each other; when the display screen boxes are spliced, the connecting locks 4 on adjacent display screen boxes are connected to each other.

[0040] A bellows 5 may be provided between the first assembly unit 1 and the second assembly unit 2 , and the signal line and the power line therebetween may pass through the bellows 5 , without causing damage to the signal line and the power line during the curvature adjustment process.

[0041] Specifically, when splicing display screen boxes, adjacent display screen boxes can be quickly spliced ​​together by connecting locks 4, and the angle or curvature of the display screen boxes can be adjusted by adjusting the curvature locks 3 between the first assembly unit 1 and the second assembly unit 2 of the display screen box, greatly improving the speed and efficiency of assembly. Generally, the number of curvature locks 3 connected is selected according to the size of the first assembly unit 1 and the second assembly unit 2. In this embodiment, two curvature locks 3 are set between the first assembly unit 1 and the second assembly unit 2.

[0042] like Figure 3 、 Figure 4 、 Figure 5As shown, the structure of the arc lock 3 is as follows: it includes a rotating shaft 31, a first mounting seat 36, a second mounting seat 37, a first rotating member 32 and a second rotating member 33, and an axis hole is provided on the first rotating member 32 and the second rotating member 33. The first rotating member 32 and the second rotating member 33 are arranged on the rotating shaft 31 through the axis hole. The first rotating member 32 is rotatably connected to the rotating shaft 31, and the second rotating member 33 is fixedly connected to the rotating shaft 31. One end of the first rotating member 32 is rotatably connected to the first mounting seat 36 through a pin shaft, and the other end of the first rotating member 32 is connected to the first connecting member 34 through a pin shaft. The first connecting member The first and second mounting bases 36 and 37 are connected to each other via a pin. The first and second mounting bases 36 and 37 are connected to each other via a pin. The first and second mounting bases 36 and 37 are connected to the display housing 37. A guide hole 38 is provided on the first rotating member 32, extending into the shaft hole. A positioning post 310 is provided within the guide hole 38. Five positioning holes 316 are spaced apart around the circumference of the rotating shaft 31 corresponding to the guide hole 38. In other embodiments, the number of positioning holes 316 can be any number selected from 1, 2, 3, 4, 6, 8, etc. The angle between the first assembly unit 1 on the first mounting base 36 and the second assembly unit 2 on the second mounting base 37 corresponding to each positioning hole 316 can be set according to actual needs.

[0043] The first rotating member 32 and the second rotating member 33 are connected together by the rotating shaft 31, and the first rotating member 32 and the second rotating member 33 can achieve relative rotation. During the relative rotation process, the angle between the first mounting seat 36 and the second mounting seat 37 can be adjusted, that is, the angle between the first assembly unit 1 connected to the first mounting seat 36 and the second assembly unit 2 connected to the second mounting seat 37 can be adjusted. The positioning hole 316 can be set according to the conventional adjustment angle between the first assembly unit 1 and the second assembly unit 2, such as the angle between the first assembly unit 1 on the first mounting seat 36 and the second assembly unit 2 on the second mounting seat 37 is 0°, 15°, 18°, 40°, 90°, etc. At each angular position, a positioning hole 316 is set at the corresponding position of the positioning post 310. Therefore, during the subsequent adjustment process, it is only necessary to rotate the first rotating member 32 and the second rotating member 33 so that the positioning post 310 is aligned with the corresponding positioning hole 316, and the splicing angle between the first assembly unit 1 and the second assembly unit 2 can be determined. Similarly, the first rotating member 32 and the second rotating member 33 are rotated according to the required splicing angle and the positioning post 310 is aligned with the corresponding positioning hole 316. Of course, the corresponding angle of the positioning hole 316 can be designed according to actual needs, including but not limited to the above example.

[0044] The length of the arm connected to the first mounting seat 36 on the first rotating member 32 is greater than the arm connected to the first connecting member 34 , and the length of the arm connected to the second mounting seat 37 on the second rotating member 33 is greater than the arm connected to the second connecting member 35 .

[0045] A fixing sleeve 39 is disposed within the guide hole 38, with one end of the fixing sleeve 39 exposed outside the first rotating member 32. An inwardly-pointing protrusion is provided on the end of the fixing sleeve 39 outside the first rotating member 32. A positioning post 310 is disposed within the fixing sleeve 39 and also has a protrusion. A compression spring 311 is sleeved onto the positioning post 310 within the fixing sleeve 39, with the ends of the compression spring 311 respectively abutting against the protrusions of the fixing sleeve 39 and the protrusions of the positioning post 310. The end of the positioning post 310 extends outside the fixing sleeve 39, and a pull handle 312 is provided on the positioning post 310 outside the fixing sleeve 39. The compression spring 311, acting between the protrusions of the fixing sleeve 39 and the protrusions of the positioning post 310, imparts a force to the positioning post 310 toward the shaft hole. In its natural state, the end of the positioning post 310 is inserted into the positioning hole 316. When the angle between the first assembly unit 1 and the second assembly unit 2 needs to be adjusted, the handle 312 can be pulled to pull the positioning post 310 outward. The positioning post 310 overcomes the force of the compression spring 311 and moves out of the positioning hole 316, thereby releasing the positioning between the first rotating member 32 and the rotating shaft 31, and the two can move relative to each other. The inner wall of the guide hole 38 can be provided with an internal thread, and the outer wall of the fixing sleeve 39 can be provided with an external thread. The fixing sleeve 39 and the guide hole 38 are connected by a thread.

[0046] Two recessed holes 313 are axially provided at the end of the fixing sleeve 39 outside the first rotating member 32. Positioning inhibiting pins 314 are provided on the pulling handle 312 at positions corresponding to the recessed holes 313. When the positioning inhibiting pins 314 are inserted into the recessed holes 313, the end of the positioning post 310 is located in the positioning hole 316 of the rotating shaft 31. When the positioning inhibiting pins 314 are located outside the recessed holes 313, the end of the positioning post 310 is located in the fixing sleeve 39. During adjustment, the positioning post 310 can be pulled out of the positioning hole 316 by pulling the handle 312, and the pulling handle 312 can be rotated to cause the positioning inhibiting pins 314 to be misaligned with the recessed holes 313. At this time, when the pulling handle 312 is released, the positioning inhibiting pins 314 abut against the end of the fixing sleeve 39, thereby releasing the positioning post 310 from the positioning hole 316, thereby facilitating adjustment of the angle between the first assembly unit 1 and the second assembly unit 2. When a plurality of arc locks 3 are provided on the display screen housing, the positioning prohibiting pins 314 of all the arc locks 3 can be pressed against the fixing sleeve 39 , so that all the positioning columns 310 are released from the positioning holes 316 , which facilitates angle adjustment and improves adjustment efficiency.

[0047] A limiting protrusion 318 is provided at one end of the rotating shaft 31. The first rotating member 32 contacts the limiting protrusion 318, and the second rotating member 33 contacts the first rotating member 32. A tightening screw 315 is provided on the second rotating member 33, and the tightening screw 315 is used to fix the second rotating member 33 to the rotating shaft 31. The first rotating member 32 and the second rotating member 33 need to limit their axial displacement on the rotating shaft 31. Therefore, a limiting protrusion 318 is provided at one end of the rotating shaft 31. The first rotating member 32 is directly sleeved on the rotating shaft 31 through the shaft hole to achieve rotational connection and axial limitation. After the second rotating member 33 is sleeved on the rotating shaft 31, it is directly fixed by the tightening screw 315. This can achieve axial and circumferential fixation between the second rotating member 33 and the rotating shaft 31, which is simple and convenient.

[0048] In this embodiment, the first rotating member 32 and the second rotating member 33 can have the same structure, and their assembly directions on the rotating shaft 31 are opposite. Furthermore, the first connecting member 34 and the second connecting member 35 also have the same structure. Therefore, a fixing sleeve 39 is positioned within the guide hole 38 of the first connecting member 34, and a tightening screw 315 is positioned within the same hole as the guide hole 38 of the second connecting member 35. This reduces the manufacturing costs of the first rotating member 32 and the second rotating member 33.

[0049] In other embodiments, an angle indicator line 319 is provided on the side wall of the first rotating member 32 at the connection between the first rotating member 32 and the first connecting member 34, and an angle reference line 320 is provided on the first connecting member 34; an angle indicator line 319 is also provided on the side wall of the second rotating member 33 at the connection between the second rotating member 33 and the second connecting member 35, and an angle reference line 320 is provided on the second connecting member 35. Depending on actual conditions, angle reference lines 320 are provided on both the first connecting member 34 and the second connecting member 35. During the adjustment process, after the angle corresponding to the positioning hole 316 is adjusted, the relative position between the first rotating member 32 and the first connecting member 34 can be provided with an angle indicator line 319, and the relative position between the second rotating member 33 and the second connecting member 35 can also be provided with an angle indicator line 319. The angle indicator line 319 and the angle reference line 320 can correspond to each other, so that the angle between the first assembly unit 1 and the second assembly unit 2 can be clearly and intuitively understood. At the same time, during the adjustment process, the position of the required adjustment angle can be determined based on the correspondence between the angle indicator line 319 and the angle reference line 320, thereby improving the convenience of adjustment.

[0050] In this embodiment, the first rotating member 32 and the first connecting member 34 are connected to the same position on the first mounting seat 36 and the second mounting seat 37, respectively. The second rotating member 33 and the second connecting member 35 are connected to the same position on the first mounting seat 36 and the second mounting seat 37, respectively. That is, the first rotating member 32 is connected to the upper left end of the first mounting seat 36, the first connecting member 34 is connected to the upper left end of the second mounting seat 37, the second rotating member 33 is connected to the lower right end of the second mounting seat 37, and the second connecting member 35 is connected to the lower right end of the first mounting seat 36. Screw holes are provided on the first mounting seat 36 and the second mounting seat 37, which are fixedly connected to the first assembly unit 1 and the second assembly unit 2, respectively, by bolts.

[0051] like Figure 6-13 As shown, the structure of the connecting lock buckle 4 is as follows: a first lock core hole 42 and a second lock core hole 43 are provided on the side walls of the first assembly unit 1 and the second assembly unit 2, and the first lock core hole 42 and the second lock core hole 43 on the side walls of adjacent display screen boxes are connected when the display screen boxes are spliced, a lock core shaft 44 is passed through the first lock core hole 42, and a handle 46 is provided at the end of the lock core shaft 44 at one end of the first lock core hole 42, and two first bosses 411 are provided at intervals on the inner wall of the second lock core hole 43, and the surface of the first boss 411 away from the end of the first lock core hole 42 is a slope, and a second boss 47 is provided at the end of the lock core shaft 44 away from the handle 46, and the number of the second bosses 47 is consistent with the number of the first bosses 411, and the width of the second boss 47 is smaller than the gap between adjacent first bosses 411.

[0052] Specifically, the first assembly unit 1 and the second assembly unit 2 are assembled to form a rectangular structure. Two of the side walls of the rectangular structure are provided with first lock core holes 42, and the other two side walls are provided with second lock core holes 43. When adjacent display screen boxes are assembled, the second lock core holes 43 can always be aligned with the first lock core holes 42, thereby achieving a connection between adjacent display screen boxes. After the lock core shaft 44 in the first lock core hole 42 is inserted into the second lock core hole 43, the lock core shaft 44 is rotated to cause the second boss 47 at the end of the lock core shaft 44 to contact the first boss 411 on the second lock core hole 43. Since the end face of the first boss 411 is an inclined surface, the first boss 411 and the second boss 47 of the lock core shaft 44 can be tightened during the rotation of the lock core shaft 44, thereby achieving a connection between two adjacent display screen boxes. At the same time, the above-mentioned connection structure is simple and quick to assemble, which can improve the splicing efficiency of the display screen boxes.

[0053] like Figure 6 、 Figure 7As shown, a circumferential groove 412 is provided on the lock core shaft 44 within the range of the first lock core hole 42, and a limit pin 48 is provided inside the side walls of the first assembly unit 1 and the second assembly unit 2 corresponding to the first lock core hole 42, and the end of the limit pin 48 extends into the inside of the circumferential groove 412. Through the cooperation of the limit pin 48 and the circumferential groove 412 on the lock core shaft 44, the lock core shaft 44 is axially limited in the first lock core hole 42, and can only rotate circumferentially within the first lock core hole 42, thereby ensuring the stability and reliability of the lock core shaft 44 when it cooperates with the second lock core hole 43.

[0054] Screw holes are provided on the side walls of the first assembly unit 1 and the second assembly unit 2. One end of the limit pin 48 is provided with an external thread. The limit pin 48 is disposed in the screw hole. A set screw 49 is disposed in the screw hole outside the limit pin 48. The set screw 49 is tightened against the limit pin 48 and defines the position of the limit pin 48. This structure can fix the limit pin 48, and the end of the limit pin 48 enters the first lock core hole 42 to a depth that prevents the limit pin 48 from completely abutting against the lock core shaft 44, causing the lock core shaft 44 to be unable to rotate, thereby improving the stability of the lock core shaft 44.

[0055] A locking sleeve 45 is disposed within the second lock core hole 43 and secured by a jacking bolt 410. The first boss 411 is disposed on the inner wall of the locking sleeve 45, and the lock core shaft 44 is inserted into the locking sleeve 45. The design of the locking sleeve 45 facilitates the processing of the second boss 47 and offers excellent versatility. Therefore, only one through-hole is required on the sidewalls of the first and second assembly units 1 and 2, into which the locking sleeve 45 is mounted, greatly facilitating the processing of the display cabinet.

[0056] An axial groove 413 is provided on the lock core shaft 44. One end of the axial groove 413 communicates with the circumferential groove 412, and the other end extends toward the second boss 47. When the end of the stop pin 48 is located within the axial groove 413, the second boss 47 corresponds to the gap between the adjacent first boss 411. The design of the axial groove 413 allows the end of the stop pin 48 to be rotated from the circumferential groove 412 into the axial groove 413 during rotation. At this time, the lock core shaft 44 can be axially displaced within the first lock core hole 42, allowing the lock core shaft 44 to be withdrawn from the second lock core hole 43, achieving quick release between the two display screen housings. Of course, the length of the axial groove 413 on the lock core shaft 44 can be based on the following conditions: when the lock core shaft 44 moves to the end where the stop pin 48 is located in the axial groove 413 near one end of the second boss 47, the end of the lock core shaft 44 is completely located within the first lock core hole 42. This structure makes it easier to install the display screen cabinet into the designated area during the splicing process of the display screen cabinet. For example, if two, three, or even four adjacent display screen cabinets have been installed and the missing display screen cabinet is installed in the gap, then after the lock core shaft 44 enters the first lock core hole 42, the lock core shaft 44 will not interfere with the installation of the display screen cabinet, thereby improving its convenience.

[0057] like Figure 10 、 Figure 11 As shown, the radial cross-section of the lock core shaft 44 is square, and the two sides of the square are transitioned by a first arc 414. The radial cross-section of the inner wall of the lock sleeve 45 is formed by alternating four second arcs 416 and four third arcs 415, and the radius of the second arc 416 is consistent with the radius of the first arc 414. The radius of the third arc 415 is larger than the radius of the second arc 416. When the second boss 47 on the lock core shaft 44 is locked with the first boss 411 in the lock sleeve 45, the first arc 414 on the lock core shaft 44 corresponds to the second arc 416 of the lock sleeve 45.

[0058] When the limit pin 48 is located in the axial groove 413, the first arc 414 of the lock core shaft 44 corresponds to the third arc 415 of the lock sleeve 45. At this time, the lock core shaft 44 and the lock sleeve 45 can move axially more freely. When the lock core shaft 44 and the lock sleeve 45 are locked together, the first arc 414 of the lock core shaft 44 corresponds to the second arc 416 of the lock sleeve 45. At this time, the two cooperate with each other to generate a certain friction force. During use, the lock core shaft 44 has a certain self-locking ability and will not rotate independently to cause release.

[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to the interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0061] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0062] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any simplified modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A display screen box capable of realizing arc splicing, comprising a first assembling unit and a second assembling unit, characterized in that: The first assembly unit and the second assembly unit are provided with an arc lock at the joint, and the side wall of the first assembly unit and the second assembly unit at an acute angle to their display plane, and connecting lock buckles are provided on the side walls of the first assembly unit and the second assembly unit except for the side walls that are connected to each other; when the display screen boxes are spliced, the connecting lock buckles on the adjacent display screen boxes are connected to each other; the structure of the arc lock is as follows: it includes a rotating shaft, a first mounting seat, a second mounting seat, a first rotating member and a second rotating member, and shaft holes are provided on the first rotating member and the second rotating member. The first rotating member and the second rotating member are arranged on the rotating shaft through the shaft hole, the first rotating member is rotatably connected to the rotating shaft, and the second rotating member is fixedly connected to the rotating shaft, and one end of the first rotating member is connected to the first mounting seat The two ends of the cam are rotatably connected by a pin, and the other end of the first rotating member is connected to the first connecting member through a pin, and the first connecting member is rotatably connected to the second mounting base through a pin, and one end of the second rotating member is rotatably connected to the second mounting base through a pin, and the other end of the second rotating member is connected to the second connecting member through a pin, and the second connecting member is rotatably connected to the first mounting base through the pin; a guide hole is provided on the first rotating member, and the guide hole extends into the shaft hole, and a positioning column is provided in the guide hole, and a plurality of positioning holes are provided at intervals on the circumference of the rotating shaft corresponding to the guide hole; a fixing sleeve is provided in the guide hole, and one end of the fixing sleeve is exposed to the outside of the first rotating member, and an inward protrusion is provided at the end of the fixing sleeve outside the first rotating member, and the positioning column is provided on the fixing sleeve A protrusion is also provided on the positioning column inside the sleeve, and a compression spring is sleeved on the positioning column inside the fixed sleeve, and the two ends of the compression spring respectively press against the protrusion of the fixed sleeve and the protrusion of the positioning column, and the end of the positioning column extends to the outside of the fixed sleeve, and a pulling handle is provided on the positioning column outside the fixed sleeve; at least one concave hole is axially provided at the end of the fixed sleeve outside the first rotating member, and a positioning prohibiting pin is provided on the pulling handle corresponding to the concave hole, when the positioning prohibiting pin is inserted into the concave hole, the end of the positioning column is located in the positioning hole of the rotating shaft, and when the positioning prohibiting pin is located outside the concave hole, the end of the positioning column is located in the fixed sleeve; a limiting protrusion is provided at one end of the rotating shaft, the first rotating member contacts the limiting protrusion, the second rotating member contacts the first rotating member, and the second rotating member contacts the first rotating member. A fixing screw is provided on it, and the fixing screw is used to fix the second rotating member on the rotating shaft; the structure of the connecting lock is as follows: a first lock core hole and a second lock core hole are provided on the side walls of the first assembling unit and the second assembling unit, and the first lock core hole on the side walls of adjacent display screen boxes that are connected when the display screen boxes are spliced, and a lock core shaft is passed through the first lock core hole, and a handle is provided at the end of the lock core shaft at one end of the first lock core hole, and at least two first bosses are provided at intervals on the inner wall of the second lock core hole, and the surface of the first boss away from the end of the first lock core hole is a slope, and a second boss is provided at the end of the lock core shaft away from the handle, the number of the second bosses is the same as the number of the first bosses, and the width of the second bosses is smaller than the gap between adjacent first bosses.

2. A display box capable of realizing arc splicing according to claim 1, characterized in that: A circumferential groove is provided on the lock core shaft within the range of the first lock core hole, and a limit pin is provided inside the side walls of the first assembly unit and the second assembly unit corresponding to the first lock core hole, and the end of the limit pin extends into the inside of the circumferential groove.

3. A display box capable of realizing arc splicing according to claim 2, characterized in that: A screw hole is provided on the side wall of the first assembling unit and the second assembling unit, an external thread is provided at one end of the limit pin, the limit pin is provided in the screw hole, and a set screw is provided in the screw hole outside the limit pin, the set screw is tightened against the limit pin and limits the position of the limit pin.

4. The display screen box capable of realizing arc splicing according to claim 3 is characterized in that: A lock sleeve is provided in the second lock core hole, and the lock sleeve is fixed by a tightening bolt. The first boss is provided on the inner wall of the lock sleeve, and the lock core shaft is inserted into the lock sleeve.

5. The display screen box capable of realizing arc splicing according to claim 4 is characterized in that: An axial groove is provided on the lock core shaft, one end of the axial groove is connected to the circumferential groove, and the other end extends toward the second boss. When the end of the limit pin is located in the axial groove, the second boss corresponds to the gap between the adjacent first boss.

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