Showing stand easy to fold

Abstract

A frame body comprises an upper frame, a lower frame, a left side vertical frame and a right side vertical frame, a first corner connecting piece comprises a first corner body and a first corner connecting part, and vertical first convex shafts are arranged in the middle of the left end of the upper frame and the middle of the left end of the lower frame respectively. The first corner body is rotationally connected with the first convex shaft; the second corner connecting piece comprises a second corner body and a second corner connecting part, vertical second convex shafts are arranged in the middle of the right end of the upper frame and the middle of the right end of the lower frame respectively, the second corner body is rotationally connected with the second convex shafts, and the left side vertical frame and the right side vertical frame do not interfere with each other when rotating and folding in the same direction at the same time; and a locking piece is connected between the left locking part and the right locking part. The showing stand easy to fold can be conveniently folded and stored, the transportation cost is reduced, other tools are not needed, time and labor are saved, and the showing stand easy to fold is easy to disassemble and assemble and firm in connection.

Description

Technical Field

[0001] This utility model relates to the field of display rack technology, and in particular to an easy-to-fold display rack. Background Technology

[0002] In numerous scenarios such as commercial displays, advertising campaigns, and trade shows, display racks serve as an important tool for presenting various products and information. Their core function is to provide stable and suitable support and display space for the content, thereby attracting the audience's attention and enhancing the display effect. With the continuous changes in market demands and the increasing diversification of usage scenarios, higher requirements are being placed on the performance and functionality of display racks, especially in terms of folding performance, which has become a key direction for the design and improvement of current display racks.

[0003] Traditional display racks often feature complex structural designs, employing fixed connection methods such as welding and riveting, or simple splicing structures that tightly connect various frames and components. While this fixed connection method ensures the stability of the display rack, it significantly limits its folding capability. For example, in some large advertising display racks, the top and bottom frames are welded to the left and right vertical frames, making disassembly or folding impossible. When transportation or storage is required, the entire rack must be moved, occupying a significant amount of space, increasing transportation costs, and increasing the risk of structural damage from collisions during handling. Furthermore, the assembly and disassembly of spliced ​​traditional display racks is cumbersome, typically requiring multiple tools and consuming considerable time and manpower, reducing work efficiency and increasing labor costs. Moreover, during assembly, the numerous components and complex connection methods increase the risk of installation errors or weak connections, affecting the stability and usability of the display rack. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-fold display rack. This easy-to-fold display rack can be easily folded and stored, reducing transportation costs. It does not require other tools, saving time and effort. Moreover, it is simple to assemble and disassemble and has a firm connection.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides an easily foldable display rack, including a frame. The frame includes an upper frame, a lower frame, a left vertical frame, and a right vertical frame. The upper and lower ends of the left vertical frame are respectively connected to a first corner connector. The first corner connector includes a first corner body and a first corner connecting part. The first corner body and the first corner connecting part are laterally rotatably connected. The first corner connecting part is connected to the left vertical frame. The left ends of the upper and lower frames are respectively provided with a vertical first convex shaft, and the first corner body is rotatably connected to the first convex shaft. The upper and lower ends of the right vertical frame are respectively connected to a second corner connector. The second corner connector includes a second corner body and a second corner connecting part. The second corner body and the second corner connecting part are laterally rotatably connected. The second corner connecting part is connected to the right vertical frame. The right ends of the upper frame and the lower frame are respectively provided with vertical second convex shafts. The second corner body and the second convex shafts are rotatably connected. The middle of the left vertical frame is provided with a left folding connector, which is provided with a left locking part. The middle of the right vertical frame is provided with a right folding connector, which is provided with a right locking part. A locking part is connected between the left locking part and the right locking part. The locking part is used to prevent the left vertical frame and the right vertical frame from rotating and folding. When the locking part is removed, the left vertical frame and the right vertical frame can rotate and fold.

[0007] The upper and lower borders are provided with a first recess at their left ends, a first protrusion on the first corner connecting part, and a first recess on the first corner body. When the left vertical border rotates, the first recess and the first recess align to form a first receiving part, so that when the left vertical border is folded horizontally, the first protrusion falls into the first receiving part. The upper and lower borders are provided with a second recess at their right ends, a second protrusion on the second corner connecting part, and a second recess on the second corner body. When the right vertical border rotates, the second recess and the second recess align to form a second receiving part, so that when the right vertical border is folded horizontally, the second protrusion falls into the second receiving part. At this time, the folded left and right vertical borders are staggered to avoid interference.

[0008] Preferably, the left ends of the upper frame and the lower frame are respectively connected to a first frame connector. The first frame connector is provided with a first frame seat and a first frame connecting part. The first convex shaft is provided on the side of the first frame seat near the left vertical frame. The first recess is provided on the side of the first frame seat near the upper frame or the lower frame. The first frame connecting part is inserted into the upper frame or the lower frame. The first recess includes a first groove and a second groove. The first groove and the second groove are arranged side by side in the middle of the first frame seat. The two sides of the first frame seat are respectively provided with a first arc plate and a second arc plate. The two sides of the first corner body are respectively provided with a first arc block and a second arc block. The first arc block matches the first arc plate, and the second arc block matches the second arc plate. A gap is provided between the second arc block and the second arc plate to allow the first corner body to rotate vertically.

[0009] The upper frame and the lower frame are respectively connected to the right end of the second frame connector. The second frame connector is provided with a second frame seat and a second frame connecting part. The second convex shaft is provided on the side of the second frame seat near the right vertical frame. The second recess is provided on the side of the second frame seat near the upper frame or the lower frame. The second frame connecting part is inserted into the upper frame or the lower frame. The second recess includes a third groove and a fourth groove. The third groove and the fourth groove are arranged side by side in the middle of the second frame seat. The second frame seat is provided with a third arc plate and a fourth arc plate on both sides. The second corner body is provided with a third arc block and a fourth arc block on both sides. The third arc block matches the third arc plate, and the fourth arc block matches the fourth arc plate. There is a gap between the third arc block and the third arc plate to allow the second corner body to rotate vertically. The second arc plate and the third arc plate are arranged diagonally.

[0010] Preferably, one end of the first corner connecting part is inserted into the left vertical frame, and one end of the second corner connecting part is inserted into the right vertical frame. One end of the first corner body and the second corner body are respectively provided with a boss, and the other end of the first corner connecting part and the second corner connecting part are respectively provided with a groove that matches the boss.

[0011] The first recessed portion includes a first recess and a second recess, which are respectively disposed on both sides of the boss of the first corner body. The first protrusion includes a first protrusion and a second protrusion, which are respectively disposed on both sides of the groove of the first corner connecting portion. The first receiving portion includes a first receiving groove and a second receiving groove. When the left vertical frame rotates, the first groove and the first recess align to form the first receiving groove, so that when the left vertical frame is folded horizontally, the first protrusion falls into the first receiving groove. At the same time, the second groove and the second recess align to form the second receiving groove, so that when the left vertical frame is folded horizontally, the second protrusion falls into the second receiving groove.

[0012] The second recess includes a third recess and a fourth recess, which are respectively located on both sides of the boss of the second corner body. The second protrusion includes a third protrusion and a fourth protrusion, which are respectively located on both sides of the slot of the second corner connecting part. The second receiving part includes a third receiving groove and a fourth receiving groove. When the right vertical frame rotates, the third groove and the third recess align to form the third receiving groove, so that when the right vertical frame is folded horizontally, the third protrusion falls into the third receiving groove. At the same time, the fourth groove and the fourth recess align to form the fourth receiving groove, so that when the right vertical frame is folded horizontally, the fourth protrusion falls into the fourth receiving groove.

[0013] Preferably, the first corner connector and the second corner connector further include a first pin and a first limiting pin, respectively. The top surface of the boss is arc-shaped and has a boss through hole along the axial direction of the boss. The two side walls of the slot are respectively provided with a first mounting hole and a second mounting hole. The first pin can pass through the first mounting hole, the boss through hole and the second mounting hole in sequence, so that the first corner connector can rotate laterally relative to the first corner body or the second corner connector can rotate laterally relative to the second corner body. The two ends of the first pin are respectively provided with a first hole, and the first corner connector or the second corner connector is respectively provided with a second hole corresponding to the first hole. The second hole is located on both sides of the slot and communicates with the first mounting hole and the second mounting hole. The first limiting pin can pass through the second hole and the first hole in sequence, so as to limit the first pin.

[0014] Preferably, the first and second corner bodies are respectively provided with hollow rotating through holes, which are sleeved on the outer side wall of the first or second convex shaft; the first and second corner connectors also include a second pin and a second limiting pin respectively, the middle part of the first and second convex shafts are respectively provided with convex shaft through holes, which penetrate the upper or lower frame, the second pin can pass through the convex shaft through hole and the rotating through hole in sequence, one end of the second pin is provided with a third hole, the first and second corner bodies are respectively provided with a fourth hole corresponding to the third hole, and the second limiting pin can pass through the fourth hole and the third hole in sequence, so as to limit the second pin.

[0015] Preferably, the left vertical frame is divided into a first vertical upper frame and a first vertical lower frame by a left folding connector, and the right vertical frame is divided into a second vertical upper frame and a second vertical lower frame by a right folding connector. The left folding connector and the right folding connector each include a middle body, an upper connecting part and a lower connecting part. The first vertical upper frame and the second vertical upper frame are respectively inserted into the upper end of the upper connecting part, and the first vertical lower frame and the second vertical lower frame are respectively inserted into the lower end of the lower connecting part. The upper connecting part and the lower connecting part are respectively rotatably connected to the middle body.

[0016] Preferably, the left-folding connector and the right-folding connector further include a first insert shaft, a second insert shaft, and a positioning pin, respectively. The upper end of the intermediate body is provided with a first lug evenly spaced and the lower end is provided with a second lug evenly spaced. The lower end of the upper connecting part is provided with a first recess that matches and engages with the first lug, and the upper end of the lower connecting part is provided with a second recess that matches and engages with the second lug. The first lug is provided with a first insertion hole in the horizontal direction, and the side wall of the first recess is provided with a second insertion hole corresponding to the first insertion hole. The first insert shaft is inserted in an alternating sequence of the second insertion hole and the first insertion hole. The second lug is provided with a third insertion hole in the horizontal direction, and the side wall of the second recess is provided with a fourth insertion hole corresponding to the third insertion hole. The second insert shaft is inserted in an alternating sequence of the fourth insertion hole and the third insertion hole. The two ends of the first insert shaft and the second insert shaft are respectively provided with a first limiting hole, and the first lug and the second lug are respectively provided with a second limiting hole corresponding to the first limiting hole. The positioning pin can pass through the corresponding second limiting hole and the first limiting hole in sequence.

[0017] Preferably, the locking component is a support rod, the left locking part is a left support platform on the inner side of the middle body on the left folding connector, and the left support platform is provided with a left locking groove, the right locking part is a right support platform on the inner side of the middle body on the right folding connector, and the right support platform is provided with a right locking groove, the two ends of the support rod are respectively engaged in the left locking groove and the right locking groove, and the left locking groove and the right locking groove are U-shaped grooves with a large opening and a small bottom.

[0018] Preferably, the first pin, the first insert pin, and the second insert pin are single-piece damping pivots.

[0019] Preferably, the lower frame is provided with a foot; a damping spring is sleeved on the first and second convex shafts; two hollow platforms are provided on the upper frame, lower frame, left vertical frame and right vertical frame, and a cavity is formed between the two hollow platforms. The cavity is used to accommodate the lighting assembly. A slot is provided on the outer side of the two hollow platforms. The slot is used to hold the canvas or painting.

[0020] The present invention achieves the following beneficial technical effects compared to the prior art:

[0021] The easily foldable display rack provided by this utility model, when the left vertical frame is rotated clockwise along the first convex axis and the right vertical frame is rotated clockwise along the second convex axis by an angle with the help of external force, avoids interference between the left and right vertical frames. At this time, the left vertical frame can be moved from the vertical state to the inside of the frame through the left folding connector, and the right vertical frame can be moved from the vertical state to the inside of the frame through the right folding connector. This causes the upper and lower ends of the left vertical frame to move into the inside of the frame through the first corner connector, and the upper and lower ends of the right vertical frame to move into the inside of the frame through the second corner connector. Furthermore, the first protrusion on the first corner connector will fall into the first receiving groove and rotate horizontally downward, while the second protrusion will fall into the second receiving groove and rotate horizontally downward, thus limiting the left vertical frame and preventing the reverse rotation of the left vertical frame. Simultaneously, the third protrusion on the second corner connector falls into the third receiving groove and rotates horizontally downwards, while the fourth protrusion falls into the fourth receiving groove and rotates horizontally downwards. This limits the right vertical frame, preventing it from rotating in the opposite direction and ensuring the frame's foldability. The movement of the left and right vertical frames from their vertical position into the frame causes the top frame to move downwards. When the left and right vertical frames stop moving, i.e., when the folded left and right vertical frames are parallel to the bottom frame, the frame is folded over the bottom frame. This achieves the simple operation of folding and unfolding, allowing the left and right vertical frames to be folded and stored on top of the bottom frame. This easily foldable display rack only requires a small rotation to separate the left and right vertical frames without interference, and the rotation is limited to prevent reversal, thus achieving folding. The small rotation range makes folding easier. Moreover, the connection is firm, and no other tools are needed for disassembly and assembly. It is simple, convenient, time-saving, labor-saving, and easy to carry and transport. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the easily foldable display rack in this utility model;

[0023] Figure 2 This is an exploded view of the easily foldable display rack of this utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure of the first corner connector of the easily foldable display rack in this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure of the first corner connector of the easily foldable display rack in this utility model from another angle.

[0026] Figure 5This is a schematic diagram of the connection structure of the second corner connector of the easily foldable display rack in this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure of the second corner connector of the easily foldable display rack in this utility model from another angle;

[0028] Figure 7 This is a top view of the first frame connector of the easily foldable display rack in this utility model;

[0029] Figure 8 This is a top view of the second frame connector of the easily foldable display rack in this utility model;

[0030] Figure 9 This is a schematic diagram of the left folding connector of the easily foldable display rack in this utility model;

[0031] Figure 10 This is a structural schematic diagram of the left folding connector of the easily foldable display rack in this utility model from another angle;

[0032] Figure 11 This is a schematic diagram of the connection structure of the left folding connector of the easily foldable display rack in this utility model;

[0033] Figure 12 This is a diagram showing the state of the first corner connector of the easily foldable display rack in this utility model after it has been rotated when folding is required.

[0034] Figure 13 This is a diagram showing the folded state of the first corner connector of the easily foldable display rack in this utility model after rotation;

[0035] Figure 14 This is a structural schematic diagram of the easily foldable display rack of this utility model in a folded state.

[0036] Figure 15 This is a structural schematic diagram of the second folded state of the easily foldable display rack in this utility model;

[0037] Figure 16 This is a structural schematic diagram of the three folded states (fully folded) of the easily foldable display rack of this utility model;

[0038] In the diagram: 1-Frame, 2-Top border, 3-Bottom border, 4-Left vertical border, 5-Right vertical border, 6-First corner connector, 7-Second corner connector, 8-First corner body, 9-First corner connecting part, 10-First border connector, 11-Second border connector, 12-Second corner body, 13-Second corner connecting part;

[0039] 101-First convex shaft, 102-Second convex shaft, 103-First arc-shaped block, 104-Second arc-shaped block, 105-First frame seat, 106-First frame connecting part, 107-First arc-shaped plate, 108-First groove, 109-Second groove, 110-Second arc-shaped plate, 111-Third arc-shaped block, 112-Fourth arc-shaped block, 113-Second frame seat, 114-Second frame connecting part, 115-Third arc-shaped plate, 116-Third groove, 117-Fourth groove; 118-Fourth arc-shaped plate; 119-First boss, 120-First slot, 121-First recess, 122-Second recess, 123-First convex shaft Block, 124-Second protrusion, 125-First receiving groove, 126-Second receiving groove, 127-Second boss, 128-Second slot, 129-Third receiving groove, 130-Fourth receiving groove, 131-First pin, 132-First limiting pin, 133-Boss through hole, 134-First mounting hole, 135-Second mounting hole, 136-First hole, 137-Second hole, 138-Rotating through hole, 139-Second pin, 140-Second limiting pin, 141-Protrusion through hole, 142-Third hole, 143-Fourth hole, 144-Third protrusion, 145-Fourth protrusion, 146-Third recess, 147-Fourth recess;

[0040] 201-Left folding connector, 202-Right folding connector, 203-First vertical upper frame, 204-First vertical lower frame, 205-Second vertical upper frame, 206-Second vertical lower frame, 207-Middle body, 208-Upper connecting part, 209-Lower connecting part, 210-First insert shaft, 211-Second insert shaft, 212-Positioning pin, 213-First lug, 214-Second lug, 215-First recess, 216-Second recess, 217-First insertion hole, 218-Second insertion hole, 219-Third insertion hole, 220-Fourth insertion hole, 221-First limiting hole, 222-Second limiting hole;

[0041] 301-Support rod, 302-Left support platform, 303-Left locking groove, 304-Right support platform, 305-Right locking groove, 306-Damping spring, 307-Hollow platform, 308-Concave cavity, 309-Slot, 310-Base. Detailed Implementation

[0042] This utility model provides an easy-to-fold display rack, such as... Figures 1-16As shown, the frame includes a frame 1, which includes an upper border 2 and a lower border 3 with identical structures, and a left vertical border 4 and a right vertical border 5 with identical structures. The upper end of the left vertical border 4 is rotatably connected to the left end of the upper border 2 through a first corner connector 6, and the lower end of the left vertical border 4 is rotatably connected to the left end of the lower border 3 through the first corner connector 6. The upper end of the right vertical border 5 is rotatably connected to the right end of the upper border 2 through a second corner connector 7, and the lower end of the right vertical border 5 is rotatably connected to the right end of the lower border 3 through the second corner connector 7, so that the frame 1 is a rectangular structure as a whole.

[0043] The first corner connector 6 includes a first corner body 8 and a first corner connecting part 9. The first corner body 8 and the first corner connecting part 9 are rotatably connected laterally (i.e., with the horizontal axis as the rotation axis). The first corner connecting part 9 is inserted into the left vertical frame 4. The middle of the left end of the upper frame 2 and the lower frame 3 are respectively provided with a vertical first protrusion 101. The first corner body 8 is rotatably connected to the first protrusion 101. The second corner connector 7 includes a second corner body 12 and a second corner connecting part 13. The second corner body 12 and the second corner connecting part 13 are rotatably connected laterally. The second corner connecting part 13 is inserted into the right vertical frame 5. The middle of the right end of the upper frame 2 and the lower frame 3 are respectively provided with a vertical second protrusion 102. The second corner body 12 is rotatably connected to the second protrusion 102.

[0044] The structure of the first corner connector 6 and the second corner connector 7 that are rotatably connected at both ends of the upper frame 2 is the same as that of the first corner connector 6 and the second corner connector 7 that are rotatably connected at both ends of the lower frame 3. The structure of the first corner connector 6 and the second corner connector 7 that are rotatably connected at both ends of the lower frame 3 is described in detail below.

[0045] Specifically, the first corner body 8 has a first arc-shaped block 103 and a second arc-shaped block 104 at both ends, and the left end of the lower frame 3 is connected to a first frame connector 10. The first frame connector 10 is also provided with a first frame seat 105 and a first frame connecting part 106. The first convex shaft 101 is located on the side of the first frame seat 105 near the left vertical frame. The first frame connecting part 106 is inserted into the lower frame 3. The first frame seat 105 is provided with a first arc-shaped plate 107, a first groove 108, a second groove 109, and a second arc-shaped plate 110. The groove and the second recess are arranged side by side in the middle of the first frame seat. The first arc-shaped plate and the second arc-shaped plate are respectively arranged on both sides of the first frame seat. The first arc-shaped block 103 matches the first arc-shaped plate 107, and the second arc-shaped block 104 matches the second arc-shaped plate 110. There is a gap between the second arc-shaped block and the second arc-shaped plate, which allows the first corner body to rotate relative to the lower frame 3 in the vertical direction (i.e., about the vertical axis). The second arc-shaped plate is inclined relative to the first arc-shaped plate in the vertical direction, making it easier for the first corner body to rotate in the vertical direction. In this way, when the frame 1 is folded, if the first convex shaft 101 is used as the axis of rotation, the left vertical frame 4 can rotate clockwise.

[0046] Similarly, the two ends of the second corner body 12 are respectively provided with a third arc-shaped block 111 and a fourth arc-shaped block 112. The right end of the lower frame 3 is provided with a second frame connector 11. The second frame connector 11 is also provided with a second frame seat 113 and a second frame connecting part 114. The second convex shaft 102 is provided on the side of the second frame seat 113 near the right vertical frame. The second frame connecting part 114 is inserted into the lower frame 3. The second frame seat 113 is provided with a third arc-shaped plate 115, a third groove 116, a fourth groove 117 and a fourth arc-shaped plate 118. 18. The third and fourth grooves are arranged side by side in the middle of the second frame seat. The third and fourth arc-shaped plates are respectively located on both sides of the second frame seat. The third arc-shaped block 111 matches the third arc-shaped plate 115, and the fourth arc-shaped block 112 matches the fourth arc-shaped plate 118. There is a gap between the third arc-shaped block and the third arc-shaped plate, which allows the second corner body to rotate vertically relative to the lower frame 3. Furthermore, the third arc-shaped plate is inclined vertically relative to the fourth arc-shaped plate, making it easier for the second corner body to rotate vertically. Thus, when the frame 1 is folded, if the second convex shaft 102 is used as the axis of rotation, the right vertical frame 5 can rotate clockwise. Since the second arc-shaped plate 110 and the third arc-shaped plate 115 are diagonally arranged, when the frame 1 is folded, the left vertical frame 4 rotates clockwise around the first convex shaft 101, and the right vertical frame 5 rotates clockwise around the second convex shaft 102. This ensures that the left vertical frame 4 and the right vertical frame 5 are offset without interference, guaranteeing the foldability of the frame 1. It should be noted that in this embodiment, the gap is set between the second arc-shaped block and the second arc-shaped plate, and between the third arc-shaped block and the third arc-shaped plate. Alternatively, the gap can be set between the first arc-shaped block and the first arc-shaped plate, and between the fourth arc-shaped block and the fourth arc-shaped plate, so that the left and right vertical frames can be rotated counterclockwise simultaneously.

[0047] One end of the first corner connecting part 9 is inserted into the left vertical frame 4. One end of the first corner body 8 is provided with a first protrusion 119. The other end of the first corner connecting part 9 is provided with a first groove 120 that matches the first protrusion 119. The first protrusion 119 is provided with a first recess 121 and a second recess 122 on both sides. The first groove 120 is provided with a first protrusion 123 and a second protrusion 124 on both sides. The first protrusion 123 corresponds to the first recess 121, and the second protrusion 124 corresponds to the second recess 122. When the left vertical frame rotates, the first recess 121 on the first corner body 8 aligns with and communicates with the first groove 108 on the first frame base 105 to form a first receiving groove 125, and the second recess 122 on the first corner body 8 aligns with and communicates with the second groove 109 on the first frame base 105 to form a second receiving groove 126. This allows the first protrusion 123 on the first corner connecting part 9 to fall into the first receiving groove 125 and the second protrusion 124 to fall into the second receiving groove 126 when the display rack is folded. The first groove 108 and the second groove 109 are inclined to facilitate the first protrusion 123 and the second protrusion 124 entering the first receiving groove 125 and the second receiving groove 126, respectively. When the left vertical frame 4 rotates clockwise, when the frame 1 is folded, the first protrusion 123 on the first corner connecting part 9 will rotate horizontally downward in the first receiving groove 125, and at the same time the second protrusion 124 will rotate horizontally downward in the second receiving groove 126. Moreover, the first protrusion 123 is stuck in the first receiving groove 125 and the second protrusion 124 is stuck in the second receiving groove 126. This limits the first corner connecting part 9, thereby limiting the left vertical frame and preventing the left vertical frame from rotating in the opposite direction, thus ensuring the foldability of the frame.

[0048] One end of the second corner connecting part 13 is inserted into the right vertical frame 5. One end of the second corner body 12 is provided with a second protrusion 127. The other end of the second corner connecting part 13 is provided with a second groove 128 that matches the second protrusion 127. Similarly, the two sides of the second protrusion 127 are provided with a third recess 146 and a fourth recess 147 respectively. Similarly, the two sides of the second groove 128 are provided with a third protrusion 144 and a fourth protrusion 145 respectively. The third protrusion 144 corresponds to the third recess 146, and the fourth protrusion 145 corresponds to the fourth recess 147. When the right vertical frame rotates, the third recess 146 aligns with and communicates with the third groove to form the third receiving groove 129, and the fourth recess 147 aligns with and communicates with the fourth groove 117 to form the fourth receiving groove 130. This allows the third protrusion 144 on the second corner connecting part 13 to fall into the third receiving groove 129 when the display rack is folded, while the fourth protrusion 145 falls into the fourth receiving groove 130. When the right vertical frame 5 rotates clockwise, when the frame 1 is folded, the third protrusion 144 will rotate horizontally downwards within the third receiving groove 129, and the fourth protrusion 145 will rotate horizontally downwards within the fourth receiving groove 130. Simultaneously, the third protrusion 144 is engaged in the third receiving groove 129 and the fourth protrusion 145 is engaged in the fourth receiving groove 130, thus limiting the second corner connecting part 13 and consequently limiting the right vertical frame, preventing reverse rotation of the right vertical frame and ensuring the foldability of the frame. The third and fourth grooves are inclined to facilitate the entry of the third and fourth protrusions into the third and fourth receiving grooves, respectively. Furthermore, to avoid interference, in the length direction of the lower frame 3, the length of the second protrusion 124 is less than the length of the first protrusion 123, and the length of the third protrusion 144 is less than the length of the fourth protrusion 145.

[0049] The first corner connector 6 also includes a first pin 131 and a first limiting pin 132. The top surface of the first boss 119 is arc-shaped, which makes it easy for the first slot 120 to rotate around the first boss 119. A boss through hole 133 is provided along the axial direction of the first boss 119. A first mounting hole 134 and a second mounting hole 135 are respectively provided on the two side walls of the first slot 120. The first pin 131 can pass through the first mounting hole 134, the boss through hole 133 and the second mounting hole 135 in sequence, so that the first corner body 8 and the first corner connecting part 9 are connected as one unit, and the first corner connecting part 9 can rotate laterally relative to the first corner body 8 with the first pin 131 as the rotation axis. The rotation of the first corner connecting part 9 will drive the lower end of the left vertical frame 4 to rotate. The first pin 131 has a first hole 136 at both ends. The first corner connecting part 9 has a second hole 137 corresponding to the first hole 136. The second hole 137 is located on both sides of the first groove 120 and communicates with the first mounting hole 134 and the second mounting hole 135. The first limiting pin 132 can pass through the second hole 137 and the first hole 136 in sequence, so as to limit the first pin 131 and fix the first pin 131.

[0050] The first corner body 8 is rotatably connected to the left end of the lower frame 3 via a first convex shaft 101. Specifically, the first corner body 8 is provided with a hollow rotating through hole 138, which is sleeved on the outer side wall of the first convex shaft 101. The first corner connector 6 also includes a second pin 139 and a second limiting pin 140. The middle part of the first convex shaft 101 is provided with a convex shaft through hole 141, which passes through the first frame connecting seat. The second pin 139 can pass through the convex shaft through hole 141 and the rotating through hole 138 in sequence. This allows the first corner body 8 to rotate vertically with the help of external force, causing it to rotate vertically relative to the lower frame 3 with the second pin 139 as the rotation axis, thereby driving the left vertical frame 4 to rotate vertically along the first convex shaft 101. One end of the second pin 139 is provided with a third hole 142, and the first corner body 8 is provided with a fourth hole 143 corresponding to the third hole 142. The second limiting pin 140 can pass through the fourth hole 143 and the third hole 142 in sequence, thereby limiting the second pin 139 and fixing it. In this embodiment, the upper cross-section of the second pin 139 is semi-circular, and the rotating through hole 138 conforms to the shape of the second pin 139, making it easier to align the fourth hole 143 and the third hole 142 during installation. At the same time, it allows the upper part of the second pin 139 to avoid the first pin 131. Moreover, by using the second limiting pin 140 to restrict the rotation of the second pin 139, the installation of the second limiting pin 140 is also more convenient.

[0051] The second corner connector 7 includes a second corner body 12 and a second corner connecting part 13 that are laterally rotatably connected. It should be noted that the connection method of the second corner body 12 and the second corner connecting part 13 is the same as the connection method of the first corner body 8 and the first corner connecting part 9. The connection method of the second corner body 12 and the second frame connector 11 is the same as the connection method of the first corner body 8 and the first frame connector 10. Therefore, the structure of the second corner connector 7 will not be described again here.

[0052] A left-folding connector 201 is provided in the middle of the left vertical frame 4, and a right-folding connector 202 is provided in the middle of the right vertical frame 5. Specifically, the left vertical frame 4 is divided into a first vertical upper frame 203 and a first vertical lower frame 204 by the left-folding connector 201, and the right vertical frame 5 is divided into a second vertical upper frame 205 and a second vertical lower frame 206 by the right-folding connector 202. The left-folding connector 201 and the right-folding connector 202 have the same structure and connection method. The structure and connection method of the left-folding connector 201 are described in detail below.

[0053] The left folding connector 201 includes a middle body 207, an upper connecting part 208, and a lower connecting part 209. The upper end of the upper connecting part 208 is inserted into the first vertical upper frame 203, and the lower end of the lower connecting part 209 is inserted into the first vertical lower frame 204. Both the upper connecting part 208 and the lower connecting part 209 are laterally rotatably connected to the middle body 207, so that when the frame 1 is folded, the left vertical frame 4 will be folded from the vertical state and stored in the lower frame 3 through the left folding connector 201. Specifically, the left-folding connector 201 also includes a first insert shaft 210, a second insert shaft 211, and a positioning pin 212. The upper end of the middle body 207 is provided with evenly spaced first lugs 213 and the lower end is provided with evenly spaced second lugs 214. The lower end of the upper connecting part 208 is provided with a first recess 215 that matches and engages with the first lugs 213, and the upper end of the lower connecting part 209 is provided with a second recess 216 that matches and engages with the second lugs 214. The end faces of the first lugs 213 and the second lugs 214 are arc-shaped, making it easier for the upper connecting part 208 and the lower connecting part 209 to rotate. 3. A first insertion hole 217 is provided in the horizontal direction. A second insertion hole 218 corresponding to the first insertion hole 217 is provided on the side wall of the first recess 215. The first insertion shaft 210 is inserted into multiple second insertion holes 218 and first insertion holes 217 in an alternating sequence of second insertion holes 218 and first insertion holes 217. A third insertion hole 219 is provided in the horizontal direction of the second lug 214. A fourth insertion hole 220 corresponding to the third insertion hole 219 is provided on the side wall of the second recess 216. The second insertion shaft 211 is inserted into multiple fourth insertion holes 220 and third insertion holes 219 in an alternating sequence of fourth insertion holes 220 and third insertion holes 219. This allows the upper connecting part 208 to rotate around the first insert shaft 210 with the aid of external force, and the lower connecting part 209 to rotate around the second insert shaft 211. This, in turn, causes the first vertical upper frame 203 to rotate around the first insert shaft 210 and the first vertical lower frame 204 to rotate around the second insert shaft 211, thus realizing the movement of the left vertical frame 4 from a vertical state to a folded state via the left folding connector 201. Both the first insert shaft 210 and the second insert shaft 211 have a first limiting hole 221 at their ends. The first lug 213 and the second lug 214 each have a second limiting hole 222 corresponding to the first limiting hole 221. The positioning pin 212 can pass through the corresponding second limiting hole 222 and the first limiting hole 221 in sequence, thereby limiting and fixing the first insert shaft 210 and the second insert shaft 211.

[0054] In this embodiment, the first pin 131, the first insert pin 210, and the second insert pin 211 are preferably straight damping pivots, so that all the pivots have a damping function. On the one hand, this ensures that the frame 1 will not fold naturally without external force, and avoids damage to the folding part. On the other hand, it allows the frame 1 to be folded slowly, avoiding sudden drop of the frame edge that could cause frame failure, and also avoiding injury to the operator, thus ensuring the reliability of the folding or unfolding of the frame 1.

[0055] This easily foldable display rack also includes a locking mechanism. Specifically, the left folding connector 201 has a left locking part, and the right folding connector 202 has a right locking part. The locking mechanism is connected between the left locking part and the right locking part. The locking mechanism is used to prevent the left vertical frame 4 and the right vertical frame 5 from rotating and folding. When the locking mechanism is removed, the left vertical frame 4 and the right vertical frame 5 can rotate and fold. In this embodiment, the locking component is a support rod 301. The left locking part is a left support platform 302 located on the inner side of the middle body 207 on the left folding connector 201. The left support platform 302 is provided with a left locking groove 303. The right locking part is a right support platform 304 located on the inner side of the middle body 207 on the right folding connector 202. The right support platform 304 is provided with a right locking groove 305. The two ends of the support rod 301 can be respectively engaged in the left locking groove 303 and the right locking groove 305. The left locking groove 303 and the right locking groove 305 are U-shaped grooves with a large opening and a small bottom, so as to facilitate the support rod 301 being engaged in the U-shaped groove. When the display rack needs to be unfolded, the support rod 301 can be supported in the left locking groove 303 and the right locking groove 305, which not only plays a supporting and fixing role, making the structure of the frame 1 more stable, but also prevents the left vertical frame 4 and the right vertical frame 5 from rotating and folding. When the display rack needs to be folded for storage, the support rod 301 can be removed, and the left vertical frame 4 and the right vertical frame 5 can be easily rotated and folded for storage.

[0056] It should be noted that the locking component is not limited to the structure of the support rod 301, and the locking part is not limited to the structure of the locking groove. As long as it can prevent the left vertical frame 4 and the right vertical frame 5 from rotating and folding when the frame 1 is unfolded, and allow the left vertical frame 4 and the right vertical frame 5 to rotate and fold when the frame 1 is folded and stored, it is acceptable.

[0057] Because there is a gap between the second arc plate 110 and the first corner body, and a gap between the third arc plate 115 and the second corner body, when the left vertical frame 4 rotates clockwise along the first convex axis 101 in the vertical direction, and the right vertical frame 5 rotates clockwise along the second convex axis 102 in the vertical direction, the left vertical frame 4 and the right vertical frame 5 will be misaligned and will no longer interfere. At this time, with the help of external force, the left vertical frame 4 can move from the vertical state to the inside of the frame 1 through the left folding connector 201, and the right vertical frame 5 can move from the vertical state to the inside of the frame 1 through the right folding connector 202. This will cause the upper and lower ends of the left vertical frame 4 to move to the inside of the frame 1 through the first corner connector 6, and the upper and lower ends of the right vertical frame 5 to move to the inside of the frame 1 through the second corner connector 7. At this time, the frame 1 is folded, and the first protrusion 123 on the first corner connecting part 9 falls into the first receiving groove 125 and rotates horizontally downwards. At the same time, the second protrusion 124 rotates horizontally downwards in the second receiving groove 126. The third protrusion 144 on the second corner connecting part 13 falls into the third receiving groove 129 and rotates horizontally downwards. At the same time, the fourth protrusion 145 rotates horizontally downwards in the fourth receiving groove 130. The left vertical frame 4 and the right vertical frame 5 move from the vertical state into the frame 1, which will drive the upper frame 2 to move downwards. When the left vertical frame 4 and the right vertical frame 5 stop moving, that is, when the folded left vertical frame 4 and the right vertical frame 5 are parallel to the lower frame 3, the frame 1 is folded on the lower frame 3. This realizes the simple operation of folding and unfolding by folding the left vertical frame 4 and the right vertical frame 5 on the lower frame 3. This easy-to-fold display rack is convenient for storage, has a sturdy connection, and requires no additional tools for assembly or disassembly. It is simple, convenient, time-saving, labor-saving, and easy to carry and transport.

[0058] Damping springs 306 are sleeved on the first convex shaft 101 and the second convex shaft 102. By setting the damping springs 306, the damping springs 306 can provide an upward elastic force during the unfolding of the frame 1, which is more conducive to the unfolding of the frame 1 and ensures that the frame 1 unfolds more smoothly.

[0059] Two hollow platforms 307 are provided on each of the top frame 2, bottom frame 3, left vertical frame 4, and right vertical frame 5. The upper connecting part 208 and lower connecting part 209 of the middle connector, the corner connecting part of the corner connector, the first frame connecting part 106, and the second frame connecting part 114 are all inserted into the hollow platforms 307, ensuring the structural stability of the frame 1. A cavity 308 is formed between the two hollow platforms 307, which is used to accommodate the lighting components, thereby enhancing the lighting effects of the exhibition. Each hollow platform 307 has a slot 309 on its outer side, which is used to hold the canvas or artwork for display. By providing the cavity 308 and slot 309, the use of fixing connectors or assembly connectors is reduced.

[0060] The bottom frame 3 is provided with a base 310. The folded or unfolded frame 1 can be placed directly on site, or the base 310 can be used to fix the frame 1 in place, which improves the stability of the frame 1.

[0061] The easy-to-fold display rack provided in this embodiment is folded as follows: the support rod 301 is removed from the left locking groove 303 and the right locking groove 305, and then the left vertical frame 4 and the right vertical frame 5 are rotated clockwise in the vertical direction so that the left vertical frame 4 and the right vertical frame 5 no longer interfere with each other. Then, the left folding connector 201 and the right folding connector 202 are pressed towards the inside of the frame 1, so that the left vertical frame 4 and the right vertical frame 5 move from the vertical state into the inside of the frame 1, thereby driving the upper and lower ends of the left vertical frame 4 to move into the inside of the frame 1 in the horizontal direction around the first corner connector 6, and at the same time driving the upper and lower ends of the right vertical frame 5 to move into the inside of the frame 1 in the horizontal direction around the second corner connector 7. The left vertical border 4 and the right vertical border 5 move from their vertical positions inwards towards the inside of the frame 1, causing the top border 2 to move downwards. When the folded left vertical border 4 and the right vertical border 5 are parallel to the bottom border 3, the frame 1 is thus folded over the bottom border 3. It should be noted that the folding process is the reverse of the unfolding process, and the unfolding process will not be described in detail here.

[0062] It should be noted that, in order to ensure that the various edges form the best parallel position after folding, the size of each connector is adapted to the size of each edge.

[0063] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A display stand that is easy to fold, comprising a frame body including an upper edge frame, a lower edge frame, a left vertical edge frame, and a right vertical edge frame, characterized in that: The upper end and the lower end of the left vertical frame are respectively connected with first corner connecting pieces, the first corner connecting piece comprises a first corner body and a first corner connecting part, the first corner body is transversely connected with the first corner connecting part, the first corner connecting part is connected with the left vertical frame, the left end of the upper frame and the lower frame is respectively provided with a vertical first convex shaft, the first corner body is rotatably connected with the first convex shaft; the upper end and the lower end of the right vertical frame are respectively connected with second corner connecting pieces, the second corner connecting piece comprises a second corner body and a second corner connecting part, the second corner body is transversely connected with the second corner connecting part, the second corner connecting part is connected with the right vertical frame, the right end of the upper frame and the lower frame is respectively provided with a vertical second convex shaft, the second corner body is rotatably connected with the second convex shaft; the middle of the left vertical frame is provided with a left folding connecting piece, the left folding connecting piece is provided with a left locking part, the middle of the right vertical frame is provided with a right folding connecting piece, the right folding connecting piece is provided with a right locking part, a locking piece is connected between the left locking part and the right locking part, the locking piece is used for preventing the rotation and folding of the left vertical frame and the right vertical frame, when the locking piece is removed, the left vertical frame and the right vertical frame can be rotated and folded; The left end of the upper frame and the lower frame is provided with a first pit part, the first corner connecting part is provided with a first convex part, the first corner body is provided with a first recess part, when the left vertical frame rotates, the first pit part and the first recess part are connected to form a first containing part, so that when the left vertical frame is transversely folded, the first convex part falls into the first containing part, the right end of the upper frame and the lower frame is provided with a second pit part, the second corner connecting part is provided with a second convex part, the second corner body is provided with a second recess part, when the right vertical frame rotates, the second pit part and the second recess part are connected to form a second containing part, so that when the right vertical frame is transversely folded, the second convex part falls into the second containing part, at this time, the folded left vertical frame and the folded right vertical frame are staggered to avoid interference.

2. The easily foldable display of claim 1, wherein: The left end of the upper frame and the lower frame is respectively connected with a first frame connecting piece, the first frame connecting piece is provided with a first frame seat and a first frame connecting part, the first convex shaft is arranged on the side of the first frame seat close to the left vertical frame, the first pit part is arranged on the side of the first frame seat close to the upper frame or the lower frame, the first frame connecting part is inserted into the upper frame or the lower frame, the first pit part comprises a first groove and a second groove, the first groove and the second groove are arranged side by side in the middle of the first frame seat, the two sides of the first frame seat are respectively provided with a first arc-shaped plate and a second arc-shaped plate, the two sides of the first corner body are respectively provided with a first arc-shaped block and a second arc-shaped block, the first arc-shaped block is matched with the first arc-shaped plate, the second arc-shaped block is matched with the second arc-shaped plate, and a gap is arranged between the second arc-shaped block and the second arc-shaped plate to allow the first corner body to be vertically rotated; The right ends of the upper and lower frames are respectively connected with second frame connecting members, the second frame connecting members are provided with second frame seats and second frame connecting portions, the second convex shafts are arranged on the sides of the second frame seats close to the right vertical frames, the second concave portions are arranged on the sides of the second frame seats close to the upper or lower frames, the second frame connecting portions are inserted into the upper or lower frames, the second concave portions include third and fourth concave grooves, the third and fourth concave grooves are arranged side by side in the middle of the second frame seat, the two sides of the second frame seat are respectively provided with third and fourth arc-shaped plates, the two sides of the second corner body are respectively provided with third and fourth arc-shaped blocks, the third arc-shaped block is matched with the third arc-shaped plate, the fourth arc-shaped block is matched with the fourth arc-shaped plate, and a gap is arranged between the third arc-shaped block and the third arc-shaped plate to allow the second corner body to vertically rotate, and the second and third arc-shaped plates are diagonally arranged.

3. The easily foldable display of claim 2, wherein: One end of the first corner connecting portion is inserted into the left vertical frame, and one end of the second corner connecting portion is inserted into the right vertical frame, one end of the first corner body and one end of the second corner body are respectively provided with convex bosses, and the other ends of the first corner connecting portion and the second corner connecting portion are respectively provided with notches matched with the convex bosses; The first concave portion includes first and second concave portions arranged on the two sides of the convex boss of the first corner body, the first convex portion includes first and second convex blocks arranged on the two sides of the notch of the first corner connecting portion, and the first accommodating portion includes first and second accommodating grooves; when the left vertical frame rotates, the first concave groove is connected with the first concave portion to form the first accommodating groove, so that when the left vertical frame is transversely folded, the first convex block falls into the first accommodating groove, and at the same time, the second concave groove is connected with the second concave portion to form the second accommodating groove, so that when the left vertical frame is transversely folded, the second convex block falls into the second accommodating groove; The second concave portion includes third and fourth concave portions arranged on the two sides of the convex boss of the second corner body, the second convex portion includes third and fourth convex blocks arranged on the two sides of the notch of the second corner connecting portion, and the second accommodating portion includes third and fourth accommodating grooves; when the right vertical frame rotates, the third concave groove is connected with the third concave portion to form the third accommodating groove, so that when the right vertical frame is transversely folded, the third convex block falls into the third accommodating groove, and at the same time, the fourth concave groove is connected with the fourth concave portion to form the fourth accommodating groove, so that when the right vertical frame is transversely folded, the fourth convex block falls into the fourth accommodating groove.

4. The easily foldable display of claim 3, wherein: The first corner connecting piece and the second corner connecting piece further respectively comprise a first pin shaft and a first limiting pin, a top surface of the boss is arc-shaped and is provided with a boss through hole in an axial direction of the boss, two side walls of the notch are respectively provided with a first mounting hole and a second mounting hole, the first pin shaft can pass through the first mounting hole, the boss through hole and the second mounting hole in sequence, so that the first corner connecting part can be transversely rotated relative to the first corner body or the second corner connecting part can be transversely rotated relative to the second corner body; two ends of the first pin shaft are respectively provided with a first hole, the first corner connecting part or the second corner connecting part is respectively provided with a second hole corresponding to the first hole, the second hole is located on two sides of the notch and communicates with the first mounting hole and the second mounting hole, and the first limiting pin can pass through the second hole and the first hole in sequence, so that the first pin shaft is limited.

5. The easily foldable display of claim 4, wherein: The first corner body and the second corner body are respectively provided with a hollow rotating through hole, and the rotating through hole is sleeved on an outer side wall of the first convex shaft or the second convex shaft; the first corner connecting piece and the second corner connecting piece further respectively comprise a second pin shaft and a second limiting pin, the middle part of the first convex shaft and the second convex shaft is respectively provided with a convex shaft through hole, and the convex shaft through hole penetrates the upper frame or the lower frame; the second pin shaft can pass through the convex shaft through hole and the rotating through hole in sequence, one end of the second pin shaft is provided with a third hole, the first corner body and the second corner body are respectively provided with a fourth hole corresponding to the third hole, and the second limiting pin can pass through the fourth hole and the third hole in sequence, so that the second pin shaft is limited.

6. The easily foldable display of claim 5, wherein: The left vertical frame is divided into a first vertical upper frame and a first vertical lower frame through a left folding connecting piece, and the right vertical frame is divided into a second vertical upper frame and a second vertical lower frame through a right folding connecting piece; the left folding connecting piece and the right folding connecting piece respectively comprise an intermediate body, an upper connecting part and a lower connecting part; the first vertical upper frame and the second vertical upper frame are respectively inserted with the upper end of the upper connecting part; the first vertical lower frame and the second vertical lower frame are respectively inserted with the lower end of the lower connecting part; and the upper connecting part and the lower connecting part are respectively transversely rotationally connected with the intermediate body.

7. The easily foldable display of claim 6, wherein: The left folding connecting piece and the right folding connecting piece further respectively comprise a first insertion shaft, a second insertion shaft and a positioning pin; the upper end of the intermediate body is provided with first lugs which are uniformly and spacedly arranged, and the lower end of the intermediate body is provided with second lugs which are uniformly and spacedly arranged; the lower end of the upper connecting part is provided with first recesses which are matched with the first lugs for clamping; the upper end of the lower connecting part is provided with second recesses which are matched with the second lugs for clamping; the first lugs are provided with first insertion holes in the horizontal direction; the side wall of the first recesses is provided with second insertion holes corresponding to the first insertion holes; the first insertion shaft is inserted in the alternating order of the second insertion holes and the first insertion holes; the second lugs are provided with third insertion holes in the horizontal direction; the side wall of the second recesses is provided with fourth insertion holes corresponding to the third insertion holes; the second insertion shaft is inserted in the alternating order of the fourth insertion holes and the third insertion holes; the two ends of the first insertion shaft and the second insertion shaft are respectively provided with first limiting holes; the first lugs and the second lugs are respectively provided with second limiting holes corresponding to the first limiting holes; and the positioning pin can pass through the corresponding second limiting holes and the first limiting holes in sequence.

8. The easily foldable display of claim 7, wherein: The locking piece is a supporting rod, the left locking part is a left supporting table arranged on the inner side of the middle body of the left folding connecting piece, the left supporting table is provided with a left locking groove, the right locking part is a right supporting table arranged on the inner side of the middle body of the right folding connecting piece, the right supporting table is provided with a right locking groove, the two ends of the supporting rod are respectively clamped in the left locking groove and the right locking groove, and the left locking groove and the right locking groove are U-shaped grooves with large openings and small bottoms.

9. The easily foldable display of claim 8, wherein: The first pin shaft, the first plug shaft and the second plug shaft are one-character damping rotating shafts.

10. The easily foldable display of claim 1, wherein: The lower frame is provided with a bottom foot; the first convex shaft and the second convex shaft are sleeved with damping springs; the upper frame, the lower frame, the left vertical frame and the right vertical frame are each provided with two hollow tables, a concave cavity is formed between the two hollow tables, the concave cavity is used for accommodating a light assembly, the outer sides of the two hollow tables are each provided with a clamping groove, and the clamping groove is used for clamping a canvas or an exhibition picture.

Images