Portable file showing stand

Abstract

The utility model discloses a portable file showing stand, and relates to the field of showing tools. Comprising a first tray, a second tray and a third tray from top to bottom, and one side of the bottom of the third tray is hinged to the corresponding side of the base through a hinge. Corresponding upper, middle and lower hinge points are arranged on the side edges of the corresponding trays, the first tray and the second tray are connected through different connecting rods, and the second tray and the third tray are connected through different connecting rods. The angle of the showing stand can be freely adjusted through the arrangement of the connecting rods and the hinge points. The core part is that a positioning button is arranged at the lower end of the connecting rod and comprises a knob and an ejector pin, and the ejector pin can be far away from or abut against the side edge of the base through rotation of the knob. The foldable display rack is simple in structure and convenient to use, can simply and clearly display various types of data in a classified mode when unfolded for use, has the advantages of being easy to carry and store, can be effectively stored in a folded mode after being used, is easy to carry and can be conveniently used in an exhibition and other scenes.

Description

Technical Field

[0001] The utility model relates to the field of display tools, in particular to a portable document display rack. Background Art

[0002] In various types of exhibition halls, exhibitors not only need to place their representative exhibits in the exhibition hall, but also need to display their product promotional materials and document materials in an orderly arrangement. Having a convenient display rack plays a vital role in the classification and placement of materials and documents.

[0003] At the exhibition, many exhibitors have a wide variety of products, and various types of information are placed at the exhibitor service desk or display boards are used as exhibition equipment to display products.

[0004] For example, in the prior art, a utility model patent with publication number CN212084618U discloses a poster material display stand, which includes a horizontal base frame and a first vertical rod and a second vertical rod fixed on the top of the base frame and arranged in parallel, a first cross bar and a second cross bar are connected between the first vertical rod and the second vertical rod, the second cross bar is located between the first cross bar and the base frame and can move up and down between the first vertical rod and the second vertical rod; the first vertical rod, the second vertical rod, the first cross bar and the second cross bar form a posting area, and the first vertical rod, the second vertical rod, the second cross bar and the base frame form a placement area; an upper storage board is also provided between the first vertical rod and the second vertical rod, and the upper storage board is provided in the placement area. The upper part of the display stand is the posting area, and the lower part is the placement area, and posters, brochures and other materials can be placed on the display stand at the same time.

[0005] These methods are not only unsightly, but also give the audience a sense of clutter, and fail to clearly classify the types of materials, leaving a bad impression on the audience. Display boards also take up limited space in the exhibition area, and it is more troublesome to recycle the equipment when the exhibition is dismantled, increasing the cost of transportation and storage space. Therefore, a convenient file display rack can be designed to solve the above problems. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a portable file display rack, which can not only classify and display various types of materials concisely and clearly when unfolded for use, but also has the characteristics of easy transportation and storage. After use, it can be effectively stored by folding, and is easy to carry and use in scenes such as exhibitions.

[0007] To achieve the above-mentioned purpose, the present application discloses a portable document display stand, comprising a first tray, a second tray and a third tray from top to bottom, one side of the bottom of the third tray is hinged to the side corresponding to the base through a hinge, the side of the first tray is sequentially provided with a first upper hinge point, a first positioning block and a first lower hinge point, the side of the second tray is sequentially provided with a second upper hinge point, a second middle hinge point and a second lower hinge point, the side of the third tray is sequentially provided with a third upper hinge point and a third middle hinge point, the first tray and the second tray are connected by a symmetrically arranged first connecting rod and a second connecting rod The second tray and the third tray are connected by a second connecting rod and a third connecting rod; the top end of the first connecting rod is hinged to the first upper hinge point, and the lower end is hinged to the second upper hinge point; the top end of the second connecting rod is hinged to the first lower hinge point, the middle part is hinged to the second middle hinge point, and the lower end is hinged to the third upper hinge point; the top end of the third connecting rod is hinged to the second lower hinge point, the middle part is hinged to the third middle hinge point, and a positioning button is provided at the lower end, and the positioning button includes a knob and a ejector pin, and the ejector pin can move away from or abut against the side of the base as the knob rotates.

[0008] Furthermore, the first connecting rod, the second connecting rod and the third connecting rod are provided in two groups, and are symmetrically arranged on both sides of the first tray, the second tray and the third tray.

[0009] Furthermore, universal wheels are provided at the lower part of the base.

[0010] Furthermore, a telescopic rod is provided on one side of the base, and a T-shaped handle is provided at the end of the telescopic rod.

[0011] Furthermore, a second positioning block is provided below the second middle hinge point of the second connecting rod, and a third positioning block is provided above the third middle hinge point of the third connecting rod.

[0012] Furthermore, weight-reducing holes are provided on the surfaces of the first tray, the second tray and the third tray.

[0013] Beneficial effects of the technical solution of the utility model:

[0014] This design provides a stable display platform through three levels of trays (first tray, second tray and third tray). Each tray is connected to the structure below by hinges. This design allows the entire display stand to maintain structural stability while also being able to flexibly adjust the angles and positions between the trays to accommodate different display needs. The positioning block design on the second and third links can provide additional support when the display stand needs to be fixed, increasing the stability of the display stand. This portable document display stand is designed with portability, stability and flexibility in mind, and is very suitable for use in various occasions such as conferences, exhibitions, education, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The utility model shows a structural schematic diagram of a portable document display stand.

[0017] Figure 2 Detailed view of the base and positioning button.

[0018] Among them: 1. first tray, 2. second tray, 3. third tray, 4. hinge, 5. base, 6. first connecting rod, 7. second connecting rod, 8. third connecting rod, 9. positioning button, 10. weight reduction hole, 11. first upper hinge point, 12. first positioning block, 13. first lower hinge point, 21. second upper hinge point, 22. second middle hinge point, 23. second lower hinge point, 24. second positioning block, 31. third upper hinge point, 32. third middle hinge point, 33. third positioning block, 51. universal wheel, 52. telescopic rod, 53. T-handle, 91. knob, 92. ejector. DETAILED DESCRIPTION

[0019] 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.

[0020] For examples, see Figure 1-2A portable document display rack comprises a first tray 1, a second tray 2 and a third tray 3 from top to bottom, one side of the bottom of the third tray is hinged to the side corresponding to the base 5 through a hinge 4, the first tray 1 is provided with a first upper hinge point 11, a first positioning block 12 and a first lower hinge point 13 on the side, the second tray 2 is provided with a second upper hinge point 21, a second middle hinge point 22 and a second lower hinge point 23 on the side, the third tray is provided with a third upper hinge point 31 and a third middle hinge point 32 on the side, the first tray and the second tray are connected by a symmetrically arranged first connecting rod 6 and a second connecting rod 7, the second tray It is connected to the third tray via the second connecting rod 7 and the third connecting rod 8; the top end of the first connecting rod 6 is hinged to the first upper hinge point 11, and the lower end is hinged to the second upper hinge point 21; the top end of the second connecting rod 7 is hinged to the first lower hinge point 13, the middle part is hinged to the second middle hinge point 22, and the lower end is hinged to the third upper hinge point 31; the top end of the third connecting rod 8 is hinged to the second lower hinge point 23, the middle part is hinged to the third middle hinge point 32, and a positioning button 9 is provided at the lower end, and the positioning button includes a knob 91 and a ejector pin 92, and the ejector pin can move away from or abut against the side of the base 5 as the knob rotates.

[0021] The display rack of this embodiment includes a first tray 1, a second tray 2 and a third tray 3 from top to bottom, and one side of the bottom of the third tray 3 is hinged to the corresponding side of the base 5 through a hinge 4. The corresponding tray sides are provided with corresponding upper, middle and lower hinge points, and the first tray 1 and the second tray 2, as well as the second tray 2 and the third tray 3 are connected by different connecting rods. The setting of the connecting rod and the hinge point enables the display rack to be freely adjusted in angle. The core part is that a positioning button is provided at the lower end of the connecting rod, and the button includes a knob and a thimble. By rotating the knob, the thimble can be moved away from or abutted against the side of the base, thereby adjusting and fixing the angle of the display rack.

[0022] Specifically, when in use, by pulling up the first tray, the second tray and the third tray are fully unfolded under the drive of the first connecting rod 6, the second connecting rod 7 and the third connecting rod 8. The whole is positioned by the positioning button 9. Otherwise, the whole can be stored.

[0023] Generally speaking, the first connecting rod, the second connecting rod and the third connecting rod are provided in two groups, which are symmetrically arranged on both sides of the first tray, the second tray and the third tray. In this patent, the arrangement layout of the first connecting rod 6, the second connecting rod 7 and the third connecting rod 8 is designed to increase stability. They are designed into two groups and are symmetrically arranged on both sides of the first tray 1, the second tray 2 and the third tray 3. Such a design makes the entire document display rack more stable, and the documents will not tilt during the placement process, and also ensures the left and right balance when unfolding and adjusting the height of the tray. Such design considerations greatly improve the stability of the document display rack during use and facilitate the user's operation.

[0024] As a preferred embodiment, a universal wheel 51 is provided at the lower part of the base 5. It enables the entire document display rack to be moved and positioned more flexibly, thereby improving the convenience of the user during operation.

[0025] A more preferred embodiment is that a telescopic rod 52 is further provided on one side of the base, and a T-shaped handle 53 is further provided at the end of the telescopic rod. The design of the telescopic rod 52 makes the display stand more convenient to move, and the user does not need to bend over, and can simply adjust the position of the display stand by controlling the telescopic rod. This reduces the burden on the user to a certain extent, making the movement of the display stand easier. The T-shaped handle 53 provides a more comfortable feel during operation, and the user can hold and operate it conveniently, reducing fatigue during use. Especially when the file display stand is frequently moved, the T-shaped handle can provide a good grip and improve the stability and accuracy of the operation.

[0026] In another embodiment, a second positioning block 24 is further provided below the second middle hinge point 22 of the second connecting rod, and a third positioning block 33 is further provided above the third middle hinge point 32 of the third connecting rod. In this embodiment, the design of the second positioning block 24 provided below the second middle hinge point 22 of the second connecting rod and the third positioning block 33 provided above the third middle hinge point 32 of the third connecting rod further improves the stability of the document display stand by optimizing the supporting structure of the connecting rod. During the use of the document display stand, the second positioning block and the third positioning block can cooperate with the corresponding tray to provide structural support, so that the display stand can maintain a stable structure under various forces, such as weight, extrusion, stretching, etc., resist deformation such as twisting and bending that may be caused by the action of force, prevent the documents from slipping or tipping over, and ensure the safe use of the display stand.

[0027] On the basis of any embodiment, the first tray, the second tray and the third tray are provided with weight-reducing holes 10. The weight-reducing holes are provided to reduce the weight of the structure, and can reduce the amount of manufacturing materials, thereby reducing the weight of the entire document display stand, and increasing its convenience in movement and carrying. At the same time, it also plays a decorative role. It can improve the overall aesthetics of the document display stand and increase the attractiveness of the product.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable document display stand, characterized in that: The invention comprises a first tray (1), a second tray (2) and a third tray (3) from top to bottom, wherein one side of the bottom of the third tray is hinged to the side corresponding to the base (5) via a hinge (4), the first tray (1) is provided with a first upper hinge point (11), a first positioning block (12) and a first lower hinge point (13) on the side, the second tray (2) is provided with a second upper hinge point (21), a second middle hinge point (22) and a second lower hinge point (23) on the side, the third tray is provided with a third upper hinge point (31) and a third middle hinge point (32) on the side, the first tray and the second tray are connected via a symmetrically arranged first connecting rod (6) and a second connecting rod (7), the second tray and the third ... The first connecting rod (6) and the second connecting rod (7) are connected to each other via a second connecting rod (7) and a third connecting rod (8); the top end of the first connecting rod (6) is hinged to the first upper hinge point (11), and the lower end is hinged to the second upper hinge point (21); the top end of the second connecting rod (7) is hinged to the first lower hinge point (13), the middle part is hinged to the second middle hinge point (22), and the lower end is hinged to the third upper hinge point (31); the top end of the third connecting rod (8) is hinged to the second lower hinge point (23), the middle part is hinged to the third middle hinge point (32), and a positioning button (9) is provided at the lower end, the positioning button comprises a knob (91) and a push pin (92), and the push pin can move away from or abut against the side of the base (5) as the knob rotates.

2. A portable document display stand according to claim 1, characterized in that: The first connecting rod, the second connecting rod and the third connecting rod are provided in two groups and are symmetrically arranged on both sides of the first tray, the second tray and the third tray.

3. A portable document display stand according to claim 1, characterized in that: The lower part of the base (5) is provided with a universal wheel (51).

4. The portable document display stand according to claim 1, characterized in that: A telescopic rod (52) is also provided on one side of the base, and a T-shaped handle (53) is also provided at the end of the telescopic rod.

5. The portable document display stand according to claim 1, characterized in that: A second positioning block (24) is also provided below the second middle hinge point (22) of the second connecting rod, and a third positioning block (33) is also provided above the third middle hinge point (32) of the third connecting rod.

6. The portable document display stand according to claim 1, characterized in that: The first tray, the second tray and the third tray are all provided with weight-reducing holes (10) on their tray surfaces.

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