Seamed steel pipe with anti-impact structure

Abstract

The utility model discloses a seamed steel pipe with an anti-impact structure, which relates to the technical field of steel pipes and comprises a square pipe, a protective pipe is arranged on the outer side of the square pipe, a plurality of rubber cushion blocks are arranged at four corners of the outer side of the square pipe in the protective pipe, a plurality of mounting holes are formed in the outer wall of the protective pipe, and the rubber cushion blocks are arranged in the mounting holes. A plurality of fixing boxes are installed on the outer wall of the square pipe, and moving plates are installed in the fixing boxes in a sliding mode. The protection pipe is used for resisting external impact, when the protection pipe is subjected to external impact force, the movable plate moves, meanwhile, the mounting column drives the sliding block to move, movement of the movable plate is buffered by the second damping spring, movement of the sliding block is buffered by the first damping spring, and therefore the sliding block can be prevented from falling off regardless of the direction of external force. The first damping spring and the second damping spring can always be matched for buffering, distortion of the second damping spring or the first damping spring cannot be caused, and therefore the service life of the springs is guaranteed, and the long-term impact resistance of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, and specifically relates to a seamless steel pipe with an impact-resistant structure. Background Art

[0002] A seamless steel pipe, also known as a welded steel pipe, refers to a steel pipe with a seam on its surface that is formed by bending a steel strip or steel plate into a circular, square or other shape and then welding it. Generally, it is made of steel plates or strips. Generally speaking, these steel pipes have poor impact resistance and are prone to deformation when subjected to external impact.

[0003] In the prior art, there are also some ways to fill buffer materials in the middle of composite pipes to improve the impact resistance of internal pipes. For example, in the "seamless steel pipe with an impact-resistant structure" with the national authorized patent number "CN 217208132 U", it is pointed out in this patent that: "A first fixing ring is sleeved outside the inner pipe, and a first fixing strip is connected between the first fixing rings. A second fixing ring is clamped inside the impact-resistant outer pipe, and a second fixing strip is connected between the second fixing rings. Buffer springs are evenly connected between the first fixing strip and the second fixing strip."

[0004] However, this device belongs to a seamless steel pipe, and the installation of its various components is relatively troublesome. In addition, the buffer springs in this patent are simply distributed at equal angles in a ring shape between the inner and outer pipes. In this case, if the pipe is subjected to a lateral impact force, the two longitudinally distributed springs will shift laterally, and vice versa. Over time, these springs will be prone to tilting or even damage, which is not conducive to the long-term use of the device. In view of this, in response to the above problems, in-depth research has led to the generation of this case. Content of the Utility Model

[0005] The purpose of the utility model is to provide a seamless steel pipe with an impact-resistant structure to solve the problem of the low service life of the internal spring of the steel pipe proposed in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A seamless steel pipe with an impact-resistant structure, including a square pipe, a protective pipe is arranged outside the square pipe, and a plurality of rubber pads are arranged at the outer sides of the four corners of the square pipe inside the protective pipe. A plurality of mounting holes are formed in the outer wall of the protective pipe, a plurality of fixing boxes are mounted on the outer wall of the square pipe, and a moving plate is slidably mounted inside each fixing box. A plurality of second damping springs are mounted between the bottom end of the moving plate and the bottom end inside the fixing box. A sliding cavity is formed inside the moving plate, and a sliding block is arranged inside the sliding cavity. First damping springs are fixed on both sides of the sliding block, and one side of each first damping spring is fixed to one side inside the sliding cavity. Connecting rods are mounted on the top ends of the sliding blocks, and the top ends of the connecting rods extend above the moving plate and are mounted with mounting posts. The outer wall of the top end of the mounting post is welded to the inner wall of the mounting hole.

[0007] Preferably, the width and height of the sliding cavity and the sliding block are respectively the same, and the connection mode between the sliding cavity and the sliding block is a sliding connection.

[0008] Preferably, guide grooves are formed on both sides inside the fixing box, guide blocks are fixed on both sides of the moving plate, and the moving plate is slidably connected to the fixing box through the cooperation between the guide blocks and the guide grooves.

[0009] Preferably, guide posts with a T-shaped cross-section are fixed at the front and rear ends inside the fixing box, and the length of the guide posts is greater than the sliding distance of the moving plate. Empty grooves matching the guide posts are formed at the front and rear ends of the moving plate.

[0010] Preferably, the shapes of the mounting post and the mounting hole are the same, and the diameter of the mounting post is equal to the inner diameter of the mounting hole.

[0011] Preferably, a plurality of equally spaced mounting frames are welded on the outer wall of the protective pipe, and a plurality of fixing plates are fixed at both ends of each mounting frame, and one end of each fixing plate is welded to the outer wall of the protective pipe.

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

[0013] By using the protective pipe to resist external impacts, when the protective pipe is subjected to external impact forces, the moving plate will move, and at the same time, the mounting post will also drive the sliding block to move. The movement of the moving plate is buffered by the second damping springs, and the movement of the sliding block is buffered by the first damping springs. Therefore, no matter what the direction of the external force is, it can always be buffered by the cooperation of the two, and the distortion of the second damping springs or the first damping springs will not occur, thus ensuring the service life of the springs and the long-term impact resistance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a front view structural schematic diagram of the present utility model;

[0015] Figure 2 It is a three-dimensional external structural schematic diagram of the present utility model;

[0016] Figure 3 It is a top view sectional structural schematic diagram of the fixed box of the present utility model;

[0017] Figure 4 It is a side view sectional structural schematic diagram of the fixed box of the present utility model.

[0018] In the figure: 1, rubber cushion block; 2, installation frame; 3, fixed box; 4, fixed plate; 5, square pipe; 6, protection pipe; 7, installation hole; 8, connecting rod; 9, sliding block; 10, sliding cavity; 11, moving plate; 12, first damping spring; 13, installation column; 14, second damping spring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: Please refer to Figures 1-4 , a slotted steel pipe with an impact-resistant structure, including a square pipe 5, a protection pipe 6 is arranged on the outer side of the square pipe 5, and a plurality of rubber cushion blocks 1 are arranged at the outer four corners of the square pipe 5 inside the protection pipe 6. A plurality of installation holes 7 are opened on the outer wall of the protection pipe 6, and a plurality of fixed boxes 3 are installed on the outer wall of the square pipe 5. A moving plate 11 is slidably installed inside each fixed box 3. A plurality of second damping springs 14 are installed between the bottom end of the moving plate 11 and the bottom end inside the fixed box 3. A sliding cavity 10 is opened inside the moving plate 11, and a sliding block 9 is arranged inside the sliding cavity 10. Both sides of the sliding block 9 are fixed with first damping springs 12, and one side of each first damping spring 12 is fixed to one side inside the sliding cavity 10. Connecting rods 8 are installed at the top ends of the sliding blocks 9, and the top ends of the connecting rods 8 extend above the moving plate 11 and are installed with installation columns 13. The outer wall of the top end of the installation column 13 is welded to the inner wall of the installation hole 7;

[0021] Specifically, as Figure 1 , Figure 3 and Figure 4, the protective tube 6 is located outside the square tube 5, which can protect the square tube 5 from being directly impacted by external forces. When the protective tube 6 is impacted, taking a lateral impact as an example, at this time, the protective tube 6 on the side shakes. It pushes the mounting post 13 to drive the moving plate 11 to move inside the fixed box 3. This part of the impact is buffered by the second damping spring 14. At the same time, the mounting posts 13 at the top and bottom drive the sliding blocks 9 to move laterally, and the first damping spring 12 is used to continue buffering. No matter what the direction of the external force is, it can always be decomposed into two-directional separation. Therefore, the first damping spring 12 and the second damping spring 14 will not be distorted, ensuring the service life while effectively buffering.

[0022] The sliding cavity 10 and the sliding block 9 have the same width and height respectively, and the connection method between the sliding cavity 10 and the sliding block 9 is a sliding connection;

[0023] On both sides inside the fixed box 3, guide grooves are provided. Guide blocks are fixed on both sides of the moving plate 11, and the moving plate 11 forms a sliding connection with the fixed box 3 through the cooperation between the guide blocks and the guide grooves;

[0024] At the front and rear ends inside the fixed box 3, guide posts with a T-shaped cross-section are fixed, and the length of the guide posts is greater than the sliding distance of the moving plate 11. Empty grooves matching the guide posts are provided at the front and rear ends of the moving plate 11;

[0025] Specifically, such as Figure 1 、 Figure 3 and Figure 4 , these designs can ensure the smoothness of the movement of the moving plate 11 and the sliding block 9, thereby preventing the second damping spring 14 or the first damping spring 12 from being distorted and deformed.

[0026] The mounting post 13 and the mounting hole 7 have the same shape, and the diameter of the mounting post 13 is equal to the inner diameter of the mounting hole 7;

[0027] Specifically, as shown in Figure 1 and Figure 2 , both the square tube 5 and the protective tube 6 are formed by bending and welding. During production and installation, the mounting hole 7 is sleeved outside the mounting post 13, and then the mounting post 13 and the mounting hole 7 are welded, which can conveniently fix the mounting post 13 and the protective tube 6 continuously.

[0028] A plurality of mounting frames 2 are welded on the outer wall of the protective tube 6 at equal intervals, and a plurality of fixing plates 4 are fixed at both ends of the mounting frame 2, and one end of each fixing plate 4 is welded to the outer wall of the protective tube 6;

[0029] Specifically, as shown in Figure 1 and Figure 2 , the mounting frame 2 is connected to the protective tube 6 through the fixing plate 4, which can improve the strength of the protective tube 6 and prevent the protective tube 6 from deforming.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A seamless steel pipe with an impact-resistant structure, comprising a square pipe (5), characterized in that: A protective tube (6) is arranged on the outer side of the square tube (5), and a plurality of rubber cushion blocks (1) are arranged at the outer four corners of the square tube (5) inside the protective tube (6). A plurality of mounting holes (7) are formed in the outer wall of the protective tube (6). A plurality of fixing boxes (3) are mounted on the outer wall of the square tube (5), and a moving plate (11) is slidably mounted inside each of the fixing boxes (3). A plurality of second damping springs (14) are mounted between the bottom end of the moving plate (11) and the bottom end inside the fixing box (3). A sliding cavity (10) is formed inside the moving plate (11), and a sliding block (9) is arranged inside the sliding cavity (10). First damping springs (12) are fixed on both sides of the sliding block (9), and one side of each first damping spring (12) is fixed to one side inside the sliding cavity (10). Connecting rods (8) are mounted on the top ends of the sliding blocks (9), and the top ends of the connecting rods (8) extend above the moving plate (11) and are mounted with mounting columns (13). The outer wall of the top end of the mounting column (13) is welded to the inner wall of the mounting hole (7).

2. The seamless steel pipe with an impact-resistant structure according to claim 1, wherein: The width and height of the sliding cavity (10) and the sliding block (9) are respectively the same, and the connection mode between the sliding cavity (10) and the sliding block (9) is a sliding connection.

3. A seamless steel pipe with an impact-resistant structure according to claim 1, characterized in that: Guide grooves are formed on both sides inside the fixing box (3). Guide blocks are fixed on both sides of the moving plate (11), and the moving plate (11) is slidably connected with the fixing box (3) through the cooperation between the guide blocks and the guide grooves.

4. A seamless steel pipe with an impact-resistant structure according to claim 1, characterized in that: Guide columns with a T-shaped cross section are fixed at the front and rear ends inside the fixing box (3), and the length of the guide columns is greater than the sliding distance of the moving plate (11). Empty grooves matching the guide columns are formed at the front and rear ends of the moving plate (11).

5. A seamless steel pipe with an impact-resistant structure according to claim 1, characterized in that: The mounting column (13) and the mounting hole (7) have the same shape, and the diameter of the mounting column (13) is equal to the inner diameter of the mounting hole (7).

6. The seamless steel pipe with an impact-resistant structure according to claim 1, characterized in that: A plurality of equally spaced mounting frames (2) are welded to the outer wall of the protective tube (6), and a plurality of fixing plates (4) are fixed at both ends of each mounting frame (2). One end of each fixing plate (4) is welded to the outer wall of the protective tube (6).

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