Roll screen connecting rod capable of preventing falling

Abstract

The utility model relates to the technical field of roll-up banners, in particular to an anti-falling roll-up banner connecting rod which comprises a guide pipe, a sliding cavity is formed in the guide pipe, a through hole is formed in the inner wall of one end of the guide pipe, and limiting holes are formed in the positions, close to the two sides of the two ends, of the side surface of the guide pipe. And mounting cylinders are mounted at the positions, close to the limiting holes, of the side surfaces of the guide pipes correspondingly, and abutting plates are arranged in the mounting cylinders correspondingly. Through the arrangement of parts such as limiting holes, mounting cylinders, abutting plates, abutting rods, mounting discs, compression springs, handheld rods, moving columns, mounting grooves, limiting springs, limiting balls and drawing pipes, the problem that most of existing roll-up banner supports are formed by connecting and assembling metal hollow pipes, the assembling mode is simple and convenient, and the roll-up banner supports are suitable for people to use; however, due to the fact that the rigidity of the metal hollow pipe is not enough, the metal pipe on the support can fall off when the metal hollow pipe is broken off, and when the metal hollow pipe is located at a high position, the safety of ground personnel can be threatened.

Description

Technical Field

[0001] The utility model relates to the technical field of roll-up banners, in particular to a roll-up banner connecting rod which can prevent the banner from falling. Background Art

[0002] Roll-up banners, also known as poster stands or display stands, and in the advertising industry as pull-up stands, pull-up displays, or roll-ups, are stand-up promotional posters. They are often found in busy street corners, supporting individual roadshows or temporary stalls. Roll-up banners are primarily made of plastic or aluminum alloy, while posters are made of photo paper. Alternatives to roll-up banners include street banners, flags, posters, and stickers.

[0003] Most of the existing roll-up stands are assembled by connecting metal hollow tubes. This assembly method is simple and convenient and suitable for people to use. However, due to the insufficient rigidity of the metal hollow tubes, it is easy to cause breakage. When broken, the metal tubes on the stand will fall off. When the metal tubes are at a high position, the falling of the metal tubes will threaten the safety of people at the bottom. Therefore, corresponding improvements are needed to address this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a roll-up banner connecting rod that can prevent it from falling, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roll-up banner connecting rod for preventing falling, comprising a guide tube, a sliding cavity is provided inside the guide tube, and a through hole is provided on the inner wall of one end of the guide tube, limiting holes are provided on the side surfaces of the guide tube near both ends, and mounting tubes are installed on the side surfaces of the guide tube near the limiting holes, a supporting plate is provided inside the mounting tube, and a supporting rod is installed on one side of the supporting plate, a mounting plate is installed at one end of the supporting rod, and compression springs are installed on the inner sides of the mounting plate near both sides, a moving column is slidingly provided at a position near one end of the sliding cavity, and a mounting groove is provided on the side surface of the moving column near both sides, a limiting spring is installed on one inner wall of the mounting groove, and a limiting ball is installed on one end of the limiting spring, and a pulling tube is installed at one end of the moving column.

[0006] Preferably, the other end of the compression spring is mounted on one end surface of the mounting tube.

[0007] Preferably, a hand-held rod is installed at the middle position of the other side of the installation plate.

[0008] Preferably, a through groove is provided on the inner wall of one side of the installation cylinder near the position of the supporting rod, and one end of the supporting rod passes through the inner wall of one side of the installation cylinder through the through groove and is slidably connected thereto.

[0009] Preferably, the limiting hole passes through the side wall of the guide tube, and the limiting ball is arranged inside the limiting hole and is movably engaged with the limiting hole.

[0010] Preferably, one end of the pulling tube passes through an inner wall of one side of the guide tube through a through hole.

[0011] Preferably, the outer diameter of the abutting plate is matched with the inner diameter of the mounting tube, and the abutting plate is slidably connected to the interior of the mounting tube.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The arrangement of components such as limiting holes, mounting tubes, retaining plates, retaining rods, mounting plates, compression springs, hand-held rods, movable columns, mounting grooves, limiting springs, limiting balls and pull-out tubes can effectively solve the problem that most existing roll-up banner brackets are assembled by connecting metal hollow tubes. This assembly method is simple and convenient and suitable for people to use. However, due to the insufficient rigidity of the metal hollow tubes, it is easy to cause breakage. When broken, the metal tubes on the brackets will fall off. When in a higher position, the falling of the metal tubes will threaten the safety of people at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the utility model.

[0015] Figure 2 It is a schematic perspective diagram of the cross-sectional structure of the guide tube of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0017] In the figure: 1. Guide tube; 11. Sliding cavity; 12. Through hole; 13. Limit hole; 2. Mounting tube; 21. Abutment plate; 22. Abutment rod; 23. Mounting plate; 24. Compression spring; 25. Hand-held rod; 3. Moving column; 31. Mounting slot; 32. Limit spring; 33. Limit ball; 34. Pull-out tube. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] according to Figure 1-Figure 3As shown, it includes a guide tube 1, a sliding cavity 11 is opened inside the guide tube 1, and a through hole 12 is opened on the inner wall of one end of the guide tube 1, and a limiting hole 13 is opened on the side surface of the guide tube 1 at both ends, and a mounting cylinder 2 is installed on the side surface of the guide tube 1 near the limiting hole 13. The interior of the mounting cylinder 2 is hollow, and the interior of the sliding cavity 11 is connected to the interior of the mounting cylinder 2 through the limiting hole 13. The interior of the mounting cylinder 2 is provided with a supporting plate 21, and a supporting rod 22 is installed on one side of the supporting plate 21. The outer diameter of the supporting plate 21 is the same as that of the mounting cylinder 2. The inner diameter of the cylinder 2 is adapted to each other, and the supporting plate 21 is slidably connected to the interior of the mounting cylinder 2. A through groove is provided on the inner wall of one side of the mounting cylinder 2 near the supporting rod 22, and one end of the supporting rod 22 passes through the inner wall of one side of the mounting cylinder 2 through the through groove and is slidably connected thereto. A mounting plate 23 is installed at one end of the supporting rod 22, and compression springs 24 are installed on both sides of the inner side of the mounting plate 23, and the other end of the compression spring 24 is installed on the surface of one end of the mounting cylinder 2, and a hand-held rod 25 is installed on the middle position of the other side of the mounting plate 23.

[0020] A moving column 3 is slidingly provided at one end of the sliding cavity 11, and mounting grooves 31 are provided on both sides of the side surface of the moving column 3. A limiting spring 32 is installed on the inner wall of one side of the mounting groove 31, and a limiting ball 33 is installed on one end of the limiting spring 32. The limiting hole 13 passes through the side wall of the guide tube 1, and the limiting ball 33 is arranged inside the limiting hole 13 and is movably connected with the limiting ball 33. A pulling tube 34 is installed at one end of the moving column 3, and one end of the pulling tube 34 passes through the inner wall of one side of the guide tube 1 through the through hole 12.

[0021] When in use, the user can move the two groups of hand-held rods 25 provided on the left side surface of the guide tube 1 respectively in the direction of the guide tube 1, so that the mounting plate 23 will move accordingly, so that the corresponding two groups of compression springs 24 will be compressed accordingly, so that the corresponding abutting rod 22 and the corresponding abutting plate 21 can move and change accordingly inside the corresponding mounting tube 2, so that the corresponding abutting plate 21 can move the corresponding limiting ball 33 accordingly inside the corresponding limiting hole 13, so that the corresponding limiting spring 32 will be compressed and changed accordingly, so that the corresponding limiting ball 33 can move to the inside of the corresponding mounting groove 31. At this time, the corresponding hand-held rod 25 can be released, so that under the action of the elastic restoring force of the corresponding two groups of compression springs 24, the corresponding mounting plate 23 and the corresponding hand-held rod 25 can be restored to their initial positions, and the corresponding abutting plate 21 can be When the two sets of limit balls 33 move to the two sets of limit holes 13 set on the right side of the side surface of the guide tube 1, the corresponding limit balls 33 can be moved to the inside of the corresponding limit holes 13 under the action of the elastic restoring force of the corresponding limit springs 32 and perform the corresponding limit engagement setting, so that the corresponding abutting plate 21 can move accordingly inside the corresponding installation cylinder 2, so that the drawing tube 34 can be installed and set between the moving post 3 and the guide tube 1. The above-mentioned component settings and operations can prevent the drawing tube 34 from slipping out of the guide tube 1 during the drawing process.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roll-up connecting rod for preventing a roll-up from falling, comprising a guide tube (1), characterized in that: The guide tube (1) is provided with a sliding cavity (11) inside, and a through hole (12) is provided on the inner wall of one end of the guide tube (1). Positioning holes (13) are provided on the side surface of the guide tube (1) at both ends, and a mounting tube (2) is installed at the position of the side surface of the guide tube (1) near the position of the limiting hole (13). A supporting plate (21) is provided inside the mounting tube (2), and a supporting rod (22) is installed on one side of the supporting plate (21). One end of the supporting rod (22) is installed. There is a mounting plate (23), and compression springs (24) are installed on both sides of the inner side of the mounting plate (23). A moving column (3) is slidably provided at one end of the interior of the sliding cavity (11), and mounting grooves (31) are provided on both sides of the side surface of the moving column (3). A limiting spring (32) is installed on the inner wall of one side of the mounting groove (31), and a limiting ball (33) is installed on one end of the limiting spring (32). A pulling tube (34) is installed on one end of the moving column (3).

2. The roll-up connecting rod for preventing a roll-up from falling according to claim 1, characterized in that: The other end of the compression spring (24) is mounted on one end surface of the mounting tube (2).

3. The roll-up connecting rod for preventing a roll-up from falling according to claim 1, characterized in that: A hand-held rod (25) is installed at the middle position of the other side of the installation plate (23).

4. The roll-up banner connecting rod for preventing falling according to claim 1, characterized in that: A through groove is provided on the inner wall of one side of the installation cylinder (2) at a position close to the rod (22), and one end of the rod (22) passes through the inner wall of one side of the installation cylinder (2) through the through groove and is slidably connected thereto.

5. The roll-up connecting rod for preventing a roll-up from falling according to claim 1, characterized in that: The limiting hole (13) passes through the side wall of the guide tube (1), and the limiting ball (33) is arranged inside the limiting hole (13) and is movably engaged with the limiting hole (13).

6. The roll-up banner connecting rod for preventing falling according to claim 1, characterized in that: One end of the pulling tube (34) passes through the inner wall of one side of the guide tube (1) through the through hole (12).

7. The roll-up banner connecting rod for preventing falling according to claim 1, characterized in that: The outer diameter of the abutting plate (21) is adapted to the inner diameter of the mounting tube (2), and the abutting plate (21) is slidably connected to the interior of the mounting tube (2).

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