Elastic rectangular tube

Abstract

The utility model discloses a kind of elastic rectangular tubes, belong to rectangular tube technical field, it includes multiple groups rectangular tube main body, rectangular tube main body both ends are provided with fixed plate, movable rod end portion is provided with extrusion plate, the extrusion plate is contacted with the inner wall of rectangular tube main body, the extrusion plate is symmetrical structure up and down, the connecting rod is embedded and connected with gas pipe, gas pipe one end is located in the inside of gas cylinder, gas pipe other end is provided with connector;The utility model is driven extrusion plate from the stable support inside rectangular tube main body by air pressure, cooperate the antiskid rubber pad outside extrusion plate, both can avoid extrusion plate and rectangular tube inner wall relative sliding, guarantee support stability, and also can prevent rigid extrusion damage through the buffering effect of rubber pad, while the neat connection when multiple groups of rectangular tube stack can also reduce collision, friction in transportation or placing process, prevent rectangular tube main body from deformation or damage due to uneven stress, guarantee its use performance.

Description

Technical Field

[0001] This utility model belongs to the field of rectangular tube technology, specifically an elastic rectangular tube. Background Technology

[0002] In industrial production, construction and other fields, flexible rectangular tubes are widely used in various pipeline laying and frame construction scenarios due to their flexibility and structural strength. However, during transportation and placement, due to their structural characteristics, flexible rectangular tubes are prone to problems such as sagging at both ends and deformation of the tube body. This not only affects the subsequent performance of the tube body, but may also cause damage due to collision and friction, resulting in resource waste and increased costs. Therefore, it is urgent to have corresponding auxiliary devices or structures to protect them to ensure their integrity during transportation and placement.

[0003] According to a search, patent document CN210122275U discloses an elastic rectangular tube, including a tube body, a supporting keel disposed within the tube body and extending along the tube body axis, and end caps disposed at both ends of the tube body. The supporting keel is composed of multiple transverse and longitudinal supporting plates arranged in a "well" shape. Both ends of the transverse and longitudinal supporting plates are arc-shaped. The transverse and longitudinal supporting plates are also densely covered with through holes. A fixing plate is also provided between the transverse and longitudinal supporting plates at both ends. The fixing plate has screw holes. A protective film is also provided on the outside of the tube body. The end caps are fastened to the ends of the tube body and the ends of the protective film are clamped inside the end caps. Multiple fixing bolts pass through the end caps and are screwed into the screw holes of the fixing plate. This utility model can effectively prevent the elastic rectangular tube from sagging at both ends during transportation. At the same time, the supporting keel has the advantages of being lightweight, recyclable, and having good strength.

[0004] The aforementioned comparative documents also have the following shortcomings: Since the supporting keel is composed of cross-sectional and longitudinal supporting plates of specific sizes, its overall structural dimensions are determined after manufacturing. It cannot be flexibly adjusted and adapted to flexible rectangular tubes with different inner diameters and cross-sectional dimensions in actual use. When faced with flexible rectangular tubes of various specifications, it is necessary to design and manufacture corresponding supporting keels for tubes of different sizes. This not only increases the manufacturing cost, but also leads to poor versatility and low applicability of the supporting keel. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides an elastic rectangular tube, which solves the technical problems of the prior art in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an elastic rectangular tube, comprising multiple sets of rectangular tube bodies, with fixed plates at both ends of the rectangular tube bodies, a connecting rod fixedly connected to the inner side of the fixed plates, an air storage cylinder at the end of the connecting rod, a movable plate slidably connected to the inner side of the air storage cylinder in a symmetrical structure, a movable rod fixedly installed on the outer side of the movable plate, a pressing plate at the end of the movable rod, the pressing plate contacting the inner wall of the rectangular tube body, the pressing plate having an upper and lower symmetrical structure, an air supply pipe embedded in the connecting rod, one end of the air supply pipe located inside the air storage cylinder, and a connector provided at the other end of the air supply pipe.

[0007] As a further embodiment of this utility model: the outer side of the fixing plate is symmetrically connected with a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are threadedly connected to the fixing plate with fixing bolts.

[0008] As a further embodiment of this utility model: the fixing plate has a slot on its outer side for use with the first connecting rod and the second connecting rod.

[0009] As a further embodiment of this utility model: the outer side of the extrusion plate is provided with an anti-slip rubber pad that cooperates with the inner wall of the rectangular tube body.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The extrusion plate is driven by air pressure to provide stable support from inside the rectangular tube body. With the anti-slip rubber pad on the outside of the extrusion plate, it can not only prevent the extrusion plate from sliding relative to the inner wall of the rectangular tube and ensure the stability of the support, but also prevent damage from hard extrusion through the buffering effect of the rubber pad. At the same time, the neat connection when multiple rectangular tubes are stacked can reduce collisions and friction during transportation or placement. It can prevent the rectangular tube body from deforming or being damaged due to uneven force in all aspects, and ensure its performance. With the help of the first link, the second link and the fixed plate, multiple rectangular tube bodies can be connected into a regular whole and stacked neatly, which can save a lot of space in the transport vehicle or storage area, avoid the waste of space caused by messy stacking, and the stacked rectangular tubes are arranged in an orderly manner, which facilitates subsequent loading, unloading, counting and management, and reduces the difficulty of operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional view of the rectangular tube body of this utility model; Figure 3 This is a schematic diagram showing the main structural cross-section of this utility model.

[0012] In the diagram: 1. Rectangular tube body; 2. Fixed plate; 3. Connecting rod; 4. Gas storage tank; 5. Gas delivery pipe; 6. Movable plate; 7. Movable rod; 8. Extrusion plate; 9. Connector; 10. Slot; 11. First connecting rod; 12. Second connecting rod. Detailed Implementation

[0013] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0014] like Figures 1-3 As shown, this utility model provides a technical solution: An elastic rectangular tube includes multiple sets of rectangular tube bodies 1. Fixed plates 2 are provided at both ends of the rectangular tube bodies 1. Connecting rods 3 are fixedly connected to the inner side of the fixed plates 2. An air storage cylinder 4 is provided at the end of the connecting rod 3. A movable plate 6 is slidably connected to the inner side of the air storage cylinder 4 in a symmetrical structure. A movable rod 7 is fixedly installed on the outer side of the movable plate 6. An extrusion plate 8 is provided at the end of the movable rod 7. The extrusion plate 8 is in contact with the inner wall of the rectangular tube body 1. The extrusion plate 8 has an upper and lower symmetrical structure. An air supply pipe 5 is embedded in the connecting rod 3. One end of the air supply pipe 5 is located inside the air storage cylinder 4. A connector 9 is provided at the other end of the air supply pipe 5. Specifically, when transporting or placing the elastic rectangular tube, the device requires prior preparation. Multiple sets of rectangular tube bodies 1 to be processed are respectively matched with the device components. Then, they are connected to the external gas supply equipment through the connector 9 of the gas supply pipe 5 on the connecting rod 3. After the gas supply equipment is turned on, the gas enters the gas storage cylinder 4 through the gas supply pipe 5. As the gas pressure inside the gas storage cylinder 4 increases, it will push the movable plate 6 with a symmetrical structure on its inner side to slide outward. The movable plate 6 drives the movable rod 7 fixed on the outer side to move synchronously. The extrusion plate 8 at the end of the movable rod 7 moves closer to the inner wall of the rectangular tube body 1 until the extrusion plate 8 is in close contact with the inner wall of the rectangular tube body 1. The extrusion plate 8 is used to stably support the rectangular tube body 1 by the air pressure, so as to prevent the rectangular tube body 1 from deforming in subsequent operations. Then, with the help of the fixing plate 2 and the first connecting rod 11 and the second connecting rod 12, the multiple sets of rectangular tube bodies 1 that have been tightened and fixed by the extrusion plate 8 are arranged in an orderly manner. They are stacked together neatly according to transportation or placement requirements. After stacking, the external gas supply equipment can be turned off. If it is necessary to remove the rectangular tube body 1, simply release the gas in the gas storage cylinder 4 through the connector 9 to reset the movable plate 6, movable rod 7 and extrusion plate 8, and then disconnect the connection between the first connecting rod 11 and the second connecting rod 12 to remove the rectangular tube body 1 one by one. The rectangular tube body 1 is supported by the air storage cylinder 4 and the pressure-controlled extrusion plate 8, which provides good support and protection for the rectangular tube body 1. This effectively prevents deformation and damage due to uneven force during transportation or placement, ensuring the integrity of the rectangular tube body 1. On the other hand, multiple sets of rectangular tube bodies 1 can be neatly stacked with the help of the fixing plate 2, the first connecting rod 11, and the second connecting rod 12. This stacking method not only saves transportation and storage space and improves space utilization, but also makes the arrangement of the rectangular tube bodies 1 more regular, which facilitates subsequent loading, unloading, counting and management, reduces the difficulty of operation, and improves the efficiency of transportation and placement. At the same time, the neat stacking can also reduce the collision and friction between the rectangular tube bodies 1, further protecting the rectangular tube bodies 1 and reducing losses. The outer side of the fixing plate 2 is symmetrically connected with the first connecting rod 11 and the second connecting rod 12. The first connecting rod 11 and the second connecting rod 12 are threadedly connected to the fixing plate 2 with fixing bolts. The fixing plate 2 and the outer side are provided with slots 10 for use with the first connecting rod 11 and the second connecting rod 12. The outer side of the extrusion plate 8 is provided with anti-slip rubber pads for use with the inner wall of the rectangular tube body 1. Specifically, when multiple sets of rectangular tube bodies 1 are stacked after the extrusion plate 8 is brought into close contact with the inner wall of the rectangular tube body 1 by air pressure, the first connecting rod 11 and the second connecting rod 12 must first be inserted into the slots 10 opened on the outer side of the fixing plate 2 respectively. The slots 10 are used to achieve the initial positioning of the first connecting rod 11 and the second connecting rod 12. Then, fixing bolts are screwed into the connection positions of the first connecting rod 11, the second connecting rod 12 and the fixing plate 2. The first connecting rod 11 and the second connecting rod 12 are stably connected to the fixing plate 2 by the tightening action of the fixing bolts, thereby connecting multiple sets of rectangular tube bodies 1 into a regular whole through the first connecting rod 11 and the second connecting rod 12, which is convenient for subsequent stacking as needed. During the process of the extrusion plate 8 contacting the inner wall of the rectangular tube body 1, the anti-slip rubber pad on the outside of the extrusion plate 8 will adhere to the inner wall of the rectangular tube body 1 along with the extrusion plate 8. The slot 10 on the outside of the fixing plate 2 provides a precise installation position for the first connecting rod 11 and the second connecting rod 12. With the threaded fixing bolts, the first connecting rod 11 and the second connecting rod 12 are firmly connected to the fixing plate 2, which can prevent the multiple sets of rectangular tube bodies 1 from loosening or shifting during stacking and transportation, and further ensure the stability of the stack. Meanwhile, the anti-slip rubber pad on the outside of the extrusion plate 8 can increase the friction between the extrusion plate 8 and the inner wall of the rectangular tube body 1, prevent the extrusion plate 8 from sliding relative to the inner wall of the rectangular tube body 1 during the support process, improve the stability of the support, and the anti-slip rubber pad is soft in texture, which can play a buffering role between the extrusion plate 8 and the inner wall of the rectangular tube body 1, avoid the extrusion plate 8 from causing hard extrusion damage to the inner wall of the rectangular tube body 1, and better protect the rectangular tube body 1; The working principle of this utility model is as follows: First, in order to achieve the support function, the connector 9 at the end of the gas supply pipe 5 is connected to the external gas supply equipment. After the gas supply equipment is turned on, the gas enters the gas storage cylinder 4 through the gas supply pipe 5. As the gas pressure inside the gas storage cylinder 4 increases, it will push the movable plate 6 with a symmetrical structure on its inner side to slide outward. The movable plate 6 drives the movable rod 7 fixed on the outer side to move synchronously, thereby causing the upper and lower symmetrical extrusion plates 8 at the end of the movable rod 7 to move closer to the inner wall of the rectangular tube body 1 until the extrusion plates 8 are in close contact with the inner wall of the rectangular tube body 1. Using the continuous force generated by the air pressure, the extrusion plates 8 stably support the rectangular tube body 1, providing support for the rectangular tube body 1 from the inside and preventing its deformation. It is worth mentioning that the anti-slip rubber pad on the outside of the extrusion plate 8 will adhere to the inner wall of the rectangular tube body 1 along with the extrusion plate 8. On the one hand, it can increase the friction between the extrusion plate 8 and the inner wall of the rectangular tube body 1, and prevent the extrusion plate 8 from sliding relative to the inner wall during the support process, thereby further improving the support stability. On the other hand, the soft anti-slip rubber pad can play a buffering role, preventing the extrusion plate 8 from causing hard extrusion damage to the inner wall of the rectangular tube body 1, thus protecting the rectangular tube body 1 while ensuring the support effect. Finally, after completing the internal support of a single rectangular tube body 1, multiple rectangular tube bodies 1 are stacked and arranged. First, the first connecting rod 11 and the second connecting rod 12 are inserted into the slots 10 on the outside of the fixing plate 2 to achieve initial positioning. Then, fixing bolts are screwed into the connection positions of the first connecting rod 11, the second connecting rod 12 and the fixing plate 2. The tightening force of the bolts makes the first connecting rod 11, the second connecting rod 12 and the fixing plate 2 stably connected, thereby connecting multiple rectangular tube bodies 1 into a regular whole, which is convenient for neat stacking according to transportation or placement requirements. If it is necessary to remove the rectangular tube body 1, simply release the gas in the gas storage cylinder 4 through the connector 9 to reset the movable plate 6, movable rod 7, and extrusion plate 8, and then disconnect the connection between the first connecting rod 11 and the second connecting rod 12.

[0015] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An elastic rectangular tube, comprising multiple sets of rectangular tube bodies (1), characterized in that: The rectangular tube body (1) is provided with fixed plates (2) at both ends. A connecting rod (3) is fixedly connected to the inner side of the fixed plate (2). A gas storage cylinder (4) is provided at the end of the connecting rod (3). A movable plate (6) is slidably connected to the inner side of the gas storage cylinder (4) in a symmetrical structure. A movable rod (7) is fixedly installed on the outer side of the movable plate (6). A pressing plate (8) is provided at the end of the movable rod (7). The pressing plate (8) is in contact with the inner wall of the rectangular tube body (1). The pressing plate (8) has an upper and lower symmetrical structure. A gas supply pipe (5) is embedded in the connecting rod (3). One end of the gas supply pipe (5) is located inside the gas storage cylinder (4). A connector (9) is provided at the other end of the gas supply pipe (5).

2. The elastic rectangular tube according to claim 1, characterized in that: The outer side of the fixing plate (2) is symmetrically connected to a first connecting rod (11) and a second connecting rod (12), and the first connecting rod (11) and the second connecting rod (12) are threadedly connected to the fixing plate (2) with fixing bolts.

3. The elastic rectangular tube according to claim 2, characterized in that: The fixing plate (2) has a slot (10) on its outer side for use with the first connecting rod (11) and the second connecting rod (12).

4. The elastic rectangular tube according to claim 1, characterized in that: The outer side of the extrusion plate (8) is provided with an anti-slip rubber pad that is used in conjunction with the inner wall of the rectangular tube body (1).

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