A screen display rack convenient to carry and transport

Abstract

The utility model relates to an advertisement display device, in particular to an A screen display rack convenient to carry and transport, which comprises a framework, and the framework comprises a top transverse pipe, a left rear vertical pipe, a left front vertical pipe, a right rear vertical pipe, a right front vertical pipe, a rear bottom transverse pipe and a front bottom transverse pipe. The top transverse pipe, the left rear vertical pipe, the rear bottom transverse pipe and the right rear vertical pipe are connected end to end in an inserted mode to form a rectangular frame, the left front vertical pipe, the front bottom transverse pipe and the right front vertical pipe are sequentially connected in an inserted mode to form a U-shaped frame, the upper end of the U-shaped frame is hinged to the upper end of the rectangular frame, and if a first included angle formed by the U-shaped frame and the rectangular frame is defined to be a, a is larger than or equal to 0 degree and smaller than or equal to 180 degrees. Compared with the prior art, due to the fact that the foldable display rack is foldable, the occupied space of the display rack in the storage state is greatly reduced.

Description

Technical Field

[0001] The utility model relates to an advertisement display device, in particular to an A-screen display frame which is easy to carry and transport. Background Art

[0002] The existing A-screen display frame has a frame made of aluminum alloy with a fixed structure. Although it can provide two-sided advertising display screens and the display screens can be freely changed, it occupies a large space because its frame cannot be disassembled and is inconvenient to carry and transport. Utility Model Content

[0003] The purpose of the utility model is to overcome the technical problem that the existing A-screen display frame is inconvenient to carry and transport, and to provide an A-screen display frame that is easy to carry and transport. The technical solution adopted is:

[0004] A display frame for an A-screen that is easy to carry and transport, comprising a frame, wherein the frame comprises a top transverse tube, a left rear vertical tube, a left front vertical tube, a right rear vertical tube, a right front vertical tube, a rear bottom transverse tube and a front bottom transverse tube, and is characterized in that the top transverse tube, the left rear vertical tube, the rear bottom transverse tube and the right rear vertical tube are plugged end to end to form a rectangular frame, the left front vertical tube, the front bottom transverse tube and the right front vertical tube are plugged in sequence to form a U-shaped frame, the upper end of the U-shaped frame is hinged to the upper end of the rectangular frame, and if a first angle formed by the U-shaped frame and the rectangular frame is defined as a, then 0°≤a≤180°.

[0005] Furthermore, chain plates of set lengths are hingedly connected at corresponding positions on the left rear riser and the left front riser and / or the right rear riser and the right front riser, and inner ends of the two chain plates are hingedly connected by fasteners; and the second angle of the two chain plates is adjusted by the fasteners so that the first angle a has a limited value.

[0006] Furthermore, more than two rubber pads are respectively mounted on the rear bottom transverse tube and the front bottom transverse tube.

[0007] Further, circular cross tube pair through holes are respectively provided in the radial direction near the left and right ends of the top cross tube, the rear bottom cross tube and the front bottom cross tube; the two ends of the top cross tube are respectively connected to the top seat, and the two ends of the bottom cross tube and the front bottom cross tube are respectively connected to the 90° elbow; the top seat includes a top seat transverse insertion portion facing inward and suitable for being inserted into the top cross tube, and a top seat pair through hole is provided on the top seat transverse insertion portion at a position corresponding to the cross tube pair through hole; the 90° elbow includes an elbow transverse insertion portion facing inward and suitable for being inserted into the rear bottom cross tube or the front bottom cross tube, and an elbow pair through hole is provided on the elbow transverse insertion portion at a position corresponding to the cross tube pair through hole; A two-finger quick-release lock is arranged in the top seat transverse insertion part and the elbow transverse insertion part. The two-finger quick-release lock includes a V-shaped spring sheet, and two cylindrical lock tongues are respectively fixed to the two ends of the spring sheet. The outer ends of the lock tongues can pass through the top seat pair of through holes or the elbow pair of through holes and then pass into the transverse tube pair of through holes. The outer ends of the lock tongues are round heads.

[0008] Furthermore, rectangular standpipe through holes are respectively provided in the radial direction near the upper and lower ends of the left rear standpipe, the left front standpipe, the right rear standpipe and the right front standpipe; the top seat also includes a top seat vertical insertion portion facing downward and suitable for being inserted into the left rear standpipe or the right rear standpipe, two top seat through expansion joints are axially provided on the top seat vertical insertion portion, and a top seat block with a rectangular outline is extended outwardly from the top seat vertical insertion portion outside the top seat through expansion joint, and the lower end of the top seat block is gradually thinned; the 90° elbow also includes an elbow vertical insertion portion facing upward and suitable for being inserted into the left rear standpipe, the left front standpipe, the right rear standpipe or the right front standpipe, two elbow through expansion joints are axially provided on the elbow vertical insertion portion, and an elbow block with a rectangular outline is extended outwardly from the elbow vertical insertion portion outside the elbow through expansion joint, and the upper end of the elbow block is gradually thinned; the top seat block and the elbow block can be embedded in the standpipe through holes.

[0009] Furthermore, a groove body with open upper, lower and front ends is provided in the middle part of the top seat, and screw holes and countersunk holes coaxial with the horizontal insertion part of the top seat are respectively provided on the inner and outer sides of the groove body; the upper ends of the left front vertical pipe and the right front vertical pipe are connected to the top heads respectively, and the top heads include a top vertical insertion part facing downward and suitable for being inserted into the left front vertical pipe and the right front vertical pipe, and two top-through expansion joints are axially provided on the top vertical insertion part, and a top clamping block with a rectangular outline is extended outwardly from the top vertical insertion part outside the top-through expansion joint, and the top clamping block can be embedded in the through hole of the vertical pipe and its lower end is gradually thinned; the top head also includes a hinged part facing upward and rearward and suitable for being inserted into the groove body, and a reaming hole concentric with the screw hole and the countersunk hole is provided in the center of the hinged part, and a pin is screwed with the screw hole after passing through the countersunk hole and the reaming hole.

[0010] Furthermore, it also includes a rectangular curtain printed with pictures and texts, the two ends of the curtain are overlapped and sewn into a sleeve, the sleeve is inserted into the rear bottom horizontal tube or the front bottom horizontal tube, and the middle part of the curtain is overlapped on the top horizontal tube.

[0011] Furthermore, the top transverse tube, the left rear vertical tube, the left front vertical tube, the right rear vertical tube, the right front vertical tube, the rear bottom transverse tube and the front bottom transverse tube are made of profiles with the same cross-sectional shape.

[0012] Furthermore, the top transverse tube, the rear bottom transverse tube and the front bottom transverse tube are of equal length.

[0013] Furthermore, the left rear riser, the left front riser, the right rear riser and the right front riser are of equal length.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are:

[0015] Foldability: The skeleton design of the display frame allows it to be folded up when not in use, mainly due to its modular design consisting of 7 pipes, which can be connected and separated by plugging and hinged.

[0016] Save space: Because it is foldable, the space occupied by the display stand in the storage state is greatly reduced, which is a great advantage for storage and transportation.

[0017] Easy to carry: Users can easily carry the folded display stand to different locations, whether it is used indoors or outdoors, it is very convenient.

[0018] Quick deployment: The foldable design allows the display stand to be quickly unfolded and put into use, improving its efficiency.

[0019] Easy to store: When not in use, the display stand can be folded into a compact shape, easy to store in a small space, such as a corner of an office or in a display vehicle.

[0020] Adaptable to a variety of environments: Due to its foldability, the display stand can adapt to different display environments and space constraints, providing greater flexibility.

[0021] Reduce transportation costs: When long-distance transportation is required, the foldable display stand can reduce transportation costs due to its small size.

[0022] Increased service life: The foldable design reduces the risk of damage to the display stand during transportation and storage, thereby extending its service life.

[0023] Improve economic efficiency: This type of display rack is more economical because it reduces transportation and storage costs while increasing frequency and convenience of use.

[0024] Versatility: The foldable display rack can be quickly adjusted in shape and size as needed to adapt to different display needs, increasing its versatility.

[0025] In general, foldability is one of the core features of the A-screen display stand of the present invention, which provides great convenience for users and also has significant advantages in terms of economy and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of the utility model.

[0027] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0028] Figure 3 A schematic diagram of the structure of the utility model after some components are separated.

[0029] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle.

[0030] Figure 5 yes Figure 3 A partial enlarged view of point C in the middle.

[0031] Figure 6 yes Figure 3 A partial enlarged view of point D in the middle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0034] like Figure 1-6The A-screen display frame shown is easy to carry and transport, including a frame 100, wherein the frame 100 includes 7 pipes, which are made of profiles with the same plum blossom cross-section shape, namely a top transverse pipe 101, a left rear vertical pipe 102, a left front vertical pipe 103, a right rear vertical pipe 104, a right front vertical pipe 105, a rear bottom transverse pipe 106, and a front bottom transverse pipe 107, wherein the top transverse pipe 101, the rear bottom transverse pipe 106, and the front bottom transverse pipe 107 are of equal length; the left rear vertical pipe 102, the left front vertical pipe 103, the right rear vertical pipe 104, and the right front vertical pipe 105 are of equal length. All pipes have the same plum blossom cross-section shape, which not only provides consistent aesthetics, but also may help improve production efficiency and reduce costs. The top cross tube 101, the rear bottom cross tube 106 and the front bottom cross tube 107 are of the same length, and the left rear vertical tube 102, the left front vertical tube 103, the right rear vertical tube 104 and the right front vertical tube 105 are of the same length. This symmetrical design helps maintain the balance and stability of the display frame. Since the length and cross-sectional shape of the pipes are consistent, users can more easily identify and assemble the various parts of the display frame. The symmetrical pipe design helps provide uniform support when the display frame is unfolded, enhancing the stability of the overall structure.

[0035] The top transverse tube 101, the left rear vertical tube 102, the rear bottom transverse tube 106 and the right rear vertical tube 104 are plugged end to end to form a rectangular frame, and the left front vertical tube 103, the front bottom transverse tube 107 and the right front vertical tube 105 are plugged in sequence to form a U-shaped frame. The upper end of the U-shaped frame is hinged to the upper end of the rectangular frame. If the first angle formed by the U-shaped frame and the rectangular frame is defined as a, then 0°≤a≤180°. Although a can be adjusted from 0° to 180°, in most display occasions, a is an acute angle less than 90°. The setting of the acute angle allows the curtain to face the audience during display, providing the best visual effect. The acute-angle display frame can better adapt to the limited display space while maintaining the visibility of the curtain. In the acute-angle state, the center of gravity of the display frame is lower, which helps to improve the stability of the overall structure. The acute-angle display frame is more harmonious visually and meets general aesthetic standards. In the acute-angle state, the force on the display frame is more uniform, which helps to improve the bearing capacity and durability of the structure. At the same time, since the first angle a can be 0°, it means that the lower end of the U-shaped frame is completely connected to the lower end of the rectangular frame. At this time, the display rack is in a completely closed state. At this time, the display rack occupies the least space and is easy to store in a small space, such as a corner of an office or a storage room. During transportation, the closed display rack reduces the packaging volume, which helps to reduce transportation costs and simplify logistics processing. The conversion from the closed state to the display state can usually be completed quickly, which improves the efficiency of the display rack. The display rack in the closed state can be used as a temporary partition or background board, which increases its application scenarios. The display rack in the closed state has a neat appearance, which can keep the display area clean and beautiful.

[0036] In another preferred embodiment, a rectangular curtain printed with images and texts is also included. The two ends of the curtain are overlapped and sewn into a sleeve, and the sleeve is inserted into the rear bottom transverse tube 106 or the front bottom transverse tube 107. The middle part of the curtain is overlapped on the top transverse tube 101. The corresponding positions on the left rear vertical tube 102 and the left front vertical tube 103 and / or the right rear vertical tube 104 and the right front vertical tube 105 are respectively hinged with chain plates 119 of set lengths, and the inner ends of the two chain plates 119 are hinged by fasteners 118; the second angle b of the two chain plates 119 is adjusted by the fasteners 118 so that the first angle a has a limited value. The two ends of the curtain are overlapped and sewn into a sleeve, which is convenient for sleeves on the rear bottom transverse tube 106 or the front bottom transverse tube 107, simplifying the installation process of the curtain. The middle part of the curtain is overlapped on the top transverse tube 101, ensuring the flatness and stability of the curtain on the display frame, and also facilitating adjustment and fixing. The curtain can be replaced as needed, making the display stand suitable for different promotional themes and occasions.

[0037] The angle between the risers is adjusted by using a chain plate 119 and a fastener 118, thereby achieving precise control of the opening and closing angle of the display stand. The chain plate 119 is connected to the corresponding positions between the left rear riser 102 and the left front riser 103 and between the right rear riser 104 and the right front riser 105 by a hinged manner. This hinge allows a variable angle to be formed between the risers. The length of the chain plate 119 is set, which means that the chain plate provides a fixed maximum length, thereby limiting the range of angles that can be formed between the risers. The inner ends of the two chain plates 119 are connected by a fastener 118. The fastener 118 can be a bolt, a screw or other type of fixing member for fixing the position of the chain plate. This embodiment shows a butterfly bolt that is easy to twist without tools. By adjusting the fastener 118, the second angle b formed between the two chain plates 119 can be changed. This adjustment affects the relative position of the risers. By changing the size of the second angle b, the first angle a formed by the U-shaped frame and the rectangular frame can be indirectly controlled. This design allows the user to set a suitable first angle a as needed. The combination of chain plates and fasteners provides a stable angle adjustment mechanism, ensuring that the display rack maintains the desired opening and closing angle during use. This design allows the display rack to adapt to different display needs, and users can adjust the opening and closing angle of the display rack according to the display content and space layout. Through simple fastener adjustments, users can easily change the angle of the display rack without complicated operations or tools. The design of chain plates and fasteners helps to improve the structural stability of the display rack and prevent unexpected angle changes during display. The design of chain plates and fasteners can be coordinated with the overall design of the display rack to maintain a neat and beautiful appearance.

[0038] In another preferred embodiment, more than two rubber pads 120 are respectively mounted on the rear bottom transverse tube 106 and the front bottom transverse tube 107. The rubber pads can prevent the pipe fittings from directly contacting the ground and reduce damage to the ground, especially when used on hard or easily damaged ground. The rubber material has the characteristics of shock absorption and sound insulation, which can reduce the noise generated by the display stand during movement or use. The rubber pads increase the friction between the ground and help improve the stability of the display stand and prevent sliding. The rubber pads can reduce the wear of the pipe fittings during movement or use and extend the service life of the display stand. When the display stand needs to be moved or adjusted, the rubber pads can provide a certain buffering effect and reduce the impact on the pipe fittings. In this embodiment, the rubber pad is C-shaped, easy to set and disassemble, and convenient for users to install or replace as needed. The use of rubber pads enhances the overall experience of users when using the display stand, making the operation smoother and more comfortable.

[0039] In this embodiment, the skeleton 100 allows disassembly in the length direction, and the disassembled parts can still achieve the aforementioned folding. The structure for convenient disassembly is as follows: circular cross tube through holes 1011 are respectively provided in the radial direction near the left and right ends of the top cross tube 101, the rear bottom cross tube 106 and the front bottom cross tube 107; the two ends of the top cross tube 101 are respectively connected to the top seat 109, and the two ends of the bottom cross tube 106 and the front bottom cross tube 107 are respectively connected to the 90° elbow 110; the top seat 1 09 includes a top seat transverse insertion portion 1091 facing inwards and suitable for being inserted into the top transverse tube 101, and a top seat pair through hole 1092 is provided on the top seat transverse insertion portion 1091 at a position corresponding to the transverse tube pair through hole 1011; the 90° elbow 110 includes an elbow transverse insertion portion 1101 facing inwards and suitable for being inserted into the rear bottom transverse tube 106 or the front bottom transverse tube 107, and an elbow pair through hole 1102 is provided on the elbow transverse insertion portion 1101 at a position corresponding to the transverse tube pair through hole 1011; A two-finger-pressed quick-release lock 111 is arranged in the top seat transverse insertion portion 1091 and the elbow transverse insertion portion 1101, and the two-finger-pressed quick-release lock 111 includes a V-shaped spring sheet 1111, and two cylindrical lock tongues 1112 are respectively fixed to the two ends of the spring sheet 1111, and the outer ends of the lock tongues 1112 can respectively pass through the top seat pair of through holes 1092 or the elbow pair of through holes 1102 and then pass into the cross tube pair of through holes 1011, and the outer ends of the lock tongues 1112 are round heads.

[0040] By providing the cross tube pairs of holes 1011 at both ends of the top cross tube 101, the rear bottom cross tube 106 and the front bottom cross tube 107, and providing corresponding pairs of holes on the top seat 109 and the 90° elbow 110, each pipe fitting can be quickly disassembled through these holes. The disassembled parts can be quickly reassembled through the corresponding top seat 109 and the 90° elbow 110. The top seat pairs of holes 1092 and the elbow pairs of holes 1102 correspond to the cross tube pairs of holes 1011, ensuring the accuracy and convenience of assembly. The disassembled parts can still achieve the aforementioned folding, which means that even after disassembly, the display stand can maintain a compact shape, which is convenient for carrying and storage. The use of the 90° elbow 110 helps to maintain the structural stability of the display stand, and maintains the sturdiness of the display stand even after disassembly and folding and reassembly. The two-finger quick-release lock 111 provides a quick and simple locking and unlocking mechanism. Through the cooperation of the V-shaped spring sheet 1111 and the cylindrical lock tongue 1112, the pipe fitting can be quickly fixed or released. The outer end of the lock tongue 1112 is designed with a round head, which increases the smoothness and safety of use and prevents accidental scratches or damage to other parts during operation. The disassembled parts take up little space and are easy to store and transport, especially suitable for occasions that require frequent movement or storage. The design of the quick-release lock is both practical and does not destroy the overall beauty of the display stand, keeping the appearance of the display stand neat.

[0041] The connection method of the non-disassembled parts is: rectangular standpipe through holes 1021 are respectively provided in the radial direction near the upper and lower ends of the left rear standpipe 102, the left front standpipe 103, the right rear standpipe 104 and the right front standpipe 105; the top seat 109 also includes a top seat vertical insertion portion 1093 facing downward and suitable for being inserted into the left rear standpipe 102 or the right rear standpipe 104, two top seat through expansion joints 1094 are axially provided on the top seat vertical insertion portion 1093, and a top seat clamping block 1095 with a rectangular outline is extended outwardly from the top seat vertical insertion portion 1093 outside the top seat through expansion joint 1094, and the top seat clamping block 1095 with a rectangular outline is formed. 95, the lower end is gradually thinned; the 90° elbow 110 also includes an elbow vertical insertion portion 1103 facing upward and suitable for inserting into the left rear vertical pipe 102, the left front vertical pipe 103, the right rear vertical pipe 104 or the right front vertical pipe 105, and two elbow through expansion joints 1104 are axially provided on the elbow vertical insertion portion 1103, and the elbow through expansion joint 1104 is extended outwardly on the elbow vertical insertion portion 1103 outside the elbow through expansion joint 1104 to form an elbow block 1105 with a rectangular outline, and the upper end of the elbow block 1105 is gradually thinned; the top seat block 1095 and the elbow block 1105 can be embedded in the vertical pipe through hole 1021. This snap-on connection method provides a stable and simple assembly method in the frame 100 of the A-screen display frame, while also retaining the possibility of disassembly in extreme cases. The snap-on method simplifies the assembly process, and users can fix the components together through simple operations. The snap-on design provides good stability, ensuring the sturdiness of the display stand during use. Compared with traditional screws or complex locking mechanisms, the snap-on method can complete assembly faster. Even without professional tools, users can easily assemble and disassemble. The snap-on design allows for a universal connection between different pipes and components; the snap-on connection makes it easier to inspect and maintain the components. The snap-on connection provides sufficient security under normal use conditions to prevent accidental detachment. The same snap-on method may reduce manufacturing costs because it simplifies the production process and reduces the number of parts. Compared with the two-finger press quick release lock, the snap-on method may require more force to assemble and disassemble, but it can also be disassembled in extreme cases, providing sufficient flexibility. The snap-on method is suitable for occasions where frequent disassembly is not required, while maintaining the stability and durability of the display stand.

[0042] In this embodiment, folding is achieved through the following structure: a groove body 1096 with open upper, lower and front ends is provided in the middle of the top seat 109, and screw holes and countersunk holes 1097 coaxial with the top seat transverse insertion part 1091 are respectively provided on the inner and outer sides of the groove body 1096; the upper ends of the left front riser 103 and the right front riser 105 are respectively connected to the top heads 112, and the top heads 112 include top head vertical insertion parts 1121 facing downward and suitable for being inserted into the left front riser 103 and the right front riser 105, and two top head cross expansion joints 1121 are axially provided on the top head vertical insertion parts 1121. 122, the top head vertical insertion part 1121 on the outside of the expansion joint 1122 of the top head extends outward to form a top head block 1123 with a rectangular outline, the top head block 1123 can be embedded in the vertical pipe through hole 1021 and its lower end is gradually thinned; the top head 112 also includes a hinged part 1124 facing upward and rearward, suitable for inserting into the groove body 1096, the center of the hinged part 1124 is provided with a reaming hole 1125 concentric with the screw hole and the countersunk hole 1097, and the pin 113 passes through the countersunk hole 1097 and the reaming hole 1125 and is screwed with the screw hole. The groove body 1096 provided in the middle of the top seat 109 provides the necessary space and guidance to realize the folding function. The inner and outer sides of the groove body 1096 are respectively provided with screw holes and countersunk holes 1097 coaxial with the top seat horizontal insertion part 1091, and these holes provide positioning and fixing points for subsequent connection and hinge. The top head 112 is designed to be connected to the vertical tube and participate in the folding mechanism of the display stand. When the hinged portion 1124 of the top head 112 rotates until the axial direction of the top head vertical insertion portion 1121 is parallel to the axial direction of the top seat vertical insertion portion 1093, the display stand is completely folded, and the left rear vertical tube 102 and the left front vertical tube 103, the right rear vertical tube 104 and the right front vertical tube 105 are compactly stacked together, minimizing the occupied space and facilitating carrying and storage.

[0043] The utility model can be summarized in other specific forms that do not violate the spirit or main features of the utility model. Therefore, no matter from which point of view, the above embodiments of the utility model can only be regarded as an explanation of the utility model and cannot limit the utility model. The claims indicate the scope of the utility model, while the above description does not indicate the scope of the utility model. Therefore, any changes within the meaning and scope equivalent to the claims of the utility model should be considered to be included in the scope of the claims of the utility model.

Claims

1. An A-screen display frame that is easy to carry and transport, comprising a frame (100), wherein the frame (100) comprises a top transverse tube (101), a left rear vertical tube (102), a left front vertical tube (103), a right rear vertical tube (104), a right front vertical tube (105), a rear bottom transverse tube (106) and a front bottom transverse tube (107), characterized in that: The top transverse tube (101), the left rear vertical tube (102), the rear bottom transverse tube (106) and the right rear vertical tube (104) are plugged end to end to form a rectangular frame, and the left front vertical tube (103), the front bottom transverse tube (107) and the right front vertical tube (105) are plugged in sequence to form a U-shaped frame. The upper end of the U-shaped frame is hinged to the upper end of the rectangular frame. If a first angle formed by the U-shaped frame and the rectangular frame is defined as a, then 0°≤a≤180°.

2. The A-screen display stand that is easy to carry and transport according to claim 1, characterized in that: Chain plates (119) of set lengths are respectively hinged at corresponding positions on the left rear riser (102) and the left front riser (103) and / or the right rear riser (104) and the right front riser (105); the inner ends of the two chain plates (119) are hinged via fasteners (118); and the second angle (b) of the two chain plates (119) is adjusted via the fasteners (118) so that the first angle a has a limited value.

3. The A-screen display stand that is easy to carry and transport according to claim 1, characterized in that: More than two rubber pads (120) are respectively sleeved on the rear bottom transverse tube (106) and the front bottom transverse tube (107).

4. An A-screen display stand that is easy to carry and transport according to any one of claims 1 to 3, characterized in that: Circular transverse tube through holes (1011) are respectively provided in the radial direction near the left and right ends of the top transverse tube (101), the rear bottom transverse tube (106) and the front bottom transverse tube (107); the two ends of the top transverse tube (101) are respectively connected to the top seat (109), and the two ends of the bottom transverse tube (106) and the front bottom transverse tube (107) are respectively connected to the 90° elbow (110); the top seat (109) comprises a top seat transverse insertion member facing inward and suitable for being inserted into the top transverse tube (101); The top seat transverse insertion portion (1091) is provided with a top seat pairing through hole (1092) at a position corresponding to the transverse tube pairing through hole (1011); the 90° elbow (110) comprises an elbow transverse insertion portion (1101) facing inward and suitable for being inserted into the rear bottom transverse tube (106) or the front bottom transverse tube (107); the elbow pairing through hole (1102) is provided on the elbow transverse insertion portion (1101) at a position corresponding to the transverse tube pairing through hole (1011); A two-finger-pressed quick-release lock (111) is arranged in the top seat transverse insertion portion (1091) and the elbow transverse insertion portion (1101), and the two-finger-pressed quick-release lock (111) comprises a V-shaped spring sheet (1111), and two cylindrical lock tongues (1112) are respectively fixedly connected to the two ends of the spring sheet (1111), and the outer ends of the lock tongues (1112) can respectively pass through the top seat pair of through holes (1092) or the elbow pair of through holes (1102) and then pass through the transverse tube pair of through holes (1011), and the outer ends of the lock tongues (1112) are rounded.

5. The A-screen display stand that is easy to carry and transport according to claim 4, characterized in that: Rectangular standpipe through holes (1021) are respectively provided in the radial direction near the upper and lower ends of the left rear standpipe (102), the left front standpipe (103), the right rear standpipe (104) and the right front standpipe (105); the top seat (109) further comprises a top seat vertical insertion portion (1093) facing downward and suitable for being inserted into the left rear standpipe (102) or the right rear standpipe (104); two top seat through expansion joints (1094) are provided in the axial direction on the top seat vertical insertion portion (1093); a top seat clamping block (1095) with a rectangular outline is extended outwardly from the top seat vertical insertion portion (1093) outside the top seat through expansion joint (1094); the lower end of the top seat clamping block (1095) gradually increases. Thinning; the 90° elbow (110) further comprises an elbow vertical insertion portion (1103) facing upward and suitable for being inserted into the left rear vertical pipe (102), the left front vertical pipe (103), the right rear vertical pipe (104) or the right front vertical pipe (105); two elbow through-expansion joints (1104) are axially provided on the elbow vertical insertion portion (1103); an elbow clamping block (1105) with a rectangular outline is extended outwardly from the elbow vertical insertion portion (1103) outside the elbow through-expansion joint (1104); the upper end of the elbow clamping block (1105) is gradually thinned; the top seat clamping block (1095) and the elbow clamping block (1105) can be embedded in the vertical pipe through-hole (1021).

6. The A-screen display stand that is easy to carry and transport according to claim 5, characterized in that: The top seat (109) has a groove body (1096) with an upper end, a lower end and a front end opened in the middle, and a screw hole and a countersunk hole (1097) coaxial with the top seat transverse insertion part (1091) are respectively provided on the inner and outer sides of the groove body (1096); the upper ends of the left front vertical pipe (103) and the right front vertical pipe (105) are respectively connected to the top head (112), and the top head (112) includes a top head vertical insertion part (1121) facing downward and suitable for being inserted into the left front vertical pipe (103) and the right front vertical pipe (105), and two top head cross expansion joints (1122) are axially provided on the top head vertical insertion part (1121), and the top head The top vertical insertion portion (1121) on the outside of the through expansion joint (1122) extends outward to form a top block (1123) with a rectangular outline, and the top block (1123) can be embedded in the vertical pipe through hole (1021) and its lower end is gradually thinned; the top (112) also includes a hinged portion (1124) facing upward and rearward and suitable for being inserted into the groove body (1096), and the center of the hinged portion (1124 is provided with a reamed hole (1125) concentric with the screw hole and the countersunk hole (1097), and the pin (113) passes through the countersunk hole (1097) and the reamed hole (1125) and is screwed to the screw hole.

7. The A-screen display stand that is easy to carry and transport according to claim 1, characterized in that: It also includes a rectangular curtain printed with images and texts, the two ends of the curtain are overlapped and sewn to form a sleeve, the sleeve is inserted into the rear bottom transverse tube (106) or the front bottom transverse tube (107), and the middle part of the curtain is overlapped on the top transverse tube (101).

8. The A-screen display stand that is easy to carry and transport according to claim 1, characterized in that: The top transverse tube (101), the left rear vertical tube (102), the left front vertical tube (103), the right rear vertical tube (104), the right front vertical tube (105), the rear bottom transverse tube (106) and the front bottom transverse tube (107) are made of profiles with the same cross-sectional shape.

9. The A-screen display stand that is easy to carry and transport according to claim 1, characterized in that: The top transverse tube (101), the rear bottom transverse tube (106) and the front bottom transverse tube (107) are of equal length.

10. The A-screen display stand that is easy to carry and transport according to claim 1, characterized in that: The left rear stand pipe (102), the left front stand pipe (103), the right rear stand pipe (104) and the right front stand pipe (105) are of equal length.

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