A flexible energy-absorbing anti-collision column

Abstract

The flexible energy-absorbing anti-collision column provided in the present application relates to the technical field of protective facilities. The flexible energy-absorbing anti-collision column comprises a base, a support shaft is provided on the base, and the lower end of the support shaft is ball-jointed with the base. A first fixing ring is provided on the support shaft, and an energy-absorbing pad for hindering the rotation of the support shaft is provided between the first fixing ring and the base. Compared with traditional rigid fences, the flexible energy-absorbing anti-collision column provided in the present application causes less damage to the colliding object and can recover by itself after being hit, which greatly reduces maintenance costs.

Description

Technical Field

[0001] The utility model relates to the technical field of protective facilities, in particular to a flexible energy-absorbing anti-collision column. Background Art

[0002] Based on the rapid development of automated factories in the manufacturing industry, higher requirements are placed on the safety of personnel and equipment in environments such as warehousing logistics, equipment protection, automobiles, robots and new energy production lines, as well as the entry and exit of loading and unloading vehicles and the movement of robotic equipment.

[0003] However, the original safety fences are mostly made of metal and are mostly used on both sides of the workshop personnel passage or for equipment isolation and protection. All parts of the fence are rigid structures, which are rigidly connected by welding and connectors. When the fence is hit by workpieces, vehicles, etc., it will cause irreversible deformation of the fence, requiring replacement of a new batch of fences, and will also cause damage to workpieces, vehicles, etc. Utility Model Content

[0004] In response to the above problems, the flexible energy-absorbing anti-collision column provided in the present application causes less damage to the colliding object compared with the traditional rigid fence, and can recover by itself after being hit, which greatly reduces maintenance costs.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A flexible energy-absorbing anti-collision column comprises a base, a support shaft is arranged on the base, and the lower end of the support shaft is spherically connected to the base;

[0007] A first fixing ring is arranged on the support shaft, and an energy absorbing pad for preventing the support shaft from rotating is arranged between the first fixing ring and the base.

[0008] Furthermore, a first groove is provided on the lower side surface of the base, and a connecting sleeve which is spherically connected to the lower end portion of the support shaft is provided in the first groove.

[0009] Furthermore, the lower end of the support shaft is provided with a ball joint portion in a hemispherical structure that matches with the connecting sleeve.

[0010] Furthermore, a ball joint sleeve matching with the connecting sleeve is provided at the lower end of the supporting shaft.

[0011] Furthermore, a second groove for accommodating an energy-absorbing pad is provided on the upper side surface of the base, and the lower end portion of the energy-absorbing pad is inserted into the second groove.

[0012] Furthermore, a limiting pressure plate is sleeved on the support shaft between the first fixing ring and the energy absorbing pad, and the projections of the limiting pressure plate and the energy absorbing pad in the horizontal plane overlap.

[0013] Furthermore, a flexible energy-absorbing column is sleeved on the outside of the support shaft, and a spring and an annular pressure plate that can slide up and down along the support shaft are sleeved on the support shaft in sequence from top to bottom, and the annular pressure plate is connected to the flexible energy-absorbing column, the upper end of the spring abuts against a limit piece arranged on the support shaft, and the lower end of the spring abuts against the annular pressure plate.

[0014] Furthermore, a third fixing ring is provided on the support shaft below the annular pressure plate.

[0015] Furthermore, the base includes a bottom plate and an inserting portion arranged on the bottom plate, and the inserting portion is inserted into the flexible energy-absorbing column.

[0016] Furthermore, a flexible energy absorbing disc for supporting the flexible energy absorbing column is arranged on the supporting shaft.

[0017] The beneficial effects of the utility model are:

[0018] A flexible energy-absorbing anti-collision column provided in an embodiment of the present application can recover by itself after being impacted. In this way, on the one hand, it can avoid a rigid collision between the impacting object (workpiece, vehicle, etc.) and it, thereby playing a role in buffering and absorbing energy, thereby avoiding damage to the impacting object (workpiece, vehicle, etc.); on the other hand, it can reduce the probability of damage to the impacted object (anti-collision column), thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of a flexible energy-absorbing anti-collision column provided in an embodiment of the present application;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0021] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part B;

[0022] Figure 4 A schematic diagram of the three-dimensional structure of the internal structure of a flexible energy-absorbing anti-collision column provided in an embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the connection structure between the support shaft and the base in Example 5.

[0024] In the figure: 1, base; 11, first groove;

[0025] 2. Anchor bolts;

[0026] 3. Support shaft; 31. Ball joint; 32. Limiting part;

[0027] 41. first fixing ring; 42. energy absorbing pad; 43. connecting sleeve; 44. limiting pressure plate; 45. ball joint sleeve;

[0028] 5. Flexible energy-absorbing column;

[0029] 61. spring; 62. annular pressure plate; 63. screw; 64. second fixing ring; 65. third fixing ring;

[0030] 71. first flexible energy absorbing disc; 72. second flexible energy absorbing disc; 73. fourth fixing ring;

[0031] 8. Capping. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described in detail below in conjunction with the drawings in the embodiments of the present application, and the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by those skilled in the art without creative work on the basis of the embodiments of the present application shall belong to the protection scope of the present application.

[0033] Embodiment 1

[0034] like Figure 1 and Figure 4 As shown, a flexible energy-absorbing anti-collision column includes a base 1 made of a rigid material, and the base 1 can be fixedly connected to the ground through fixing parts such as anchor bolts 2 or anchor bolts. A support shaft 3 made of a rigid material is provided on the base 1, and the lower end of the support shaft 3 is ball-jointed with the base 1, and the support shaft 3 can rotate relative to the base 1 within a certain spatial range. A first fixing ring 41 and an energy-absorbing pad 42 are sequentially sleeved on the support shaft 3 above the base 1 from top to bottom, and the first fixing ring 41 is fixedly connected to the support shaft 3, and the energy-absorbing pad 42 is made of elastic material. When the support shaft 3 rotates relative to the base 1, the energy-absorbing pad 42 confined between the first fixing ring 41 and the base 1 is deformed due to extrusion, thereby playing the role of energy absorption and buffering.

[0035] Preferably, the first fixing ring 41 is made of a rigid material, and the first fixing ring 41 is fixedly connected to the support shaft 3 via a set screw 63 .

[0036] As a specific implementation method, Figure 1 and Figure 3 As shown, in this embodiment, the lower end of the support shaft 3 is provided with a ball joint 31 with a hemispherical structure, and the base 1 is provided with a mounting hole that penetrates the base 1 in the vertical direction. The support shaft 3 is located in the mounting hole, and the lower end of the mounting hole is a spherical structure that matches the ball joint 31. Here, the first fixing ring 41 has a limiting function, which can prevent the support shaft 3 from moving downward relative to the base 1, and under the limiting function of the first fixing ring 41, the spherical part is pressed tightly in the spherical structure of the mounting hole.

[0037] The ball joint 31 adopts a hemispherical structure, which can facilitate the installation of the support shaft 3.

[0038] Furthermore, if Figure 1 and Figure 3 As shown, the lower side of the base 1 is provided with a first groove 11 that is recessed upward, and a connecting sleeve 43 made of a rigid material is provided in the first groove 11, and the lower half of the inner hole of the connecting sleeve 43 is a spherical structure that matches the spherical portion, and the connecting sleeve 43 is pressed against the bottom surface of the first groove 11 under the limiting action of the first fixing ring 41. That is, the connecting sleeve 43 can match the ball joint portion 31 of the support shaft 3 to achieve ball joint.

[0039] The reason for such a design is that when impacted, the support shaft 3 will rotate relative to the base 1, causing wear. By providing the connecting sleeve 43, the wear of the base 1 can be transferred to the connecting sleeve 43, thereby avoiding wear of the base 1. In this way, during use, only the connecting sleeve 43, which is a wearing part, needs to be replaced, without replacing the entire base 1, which can reduce maintenance costs.

[0040] Furthermore, if Figure 1 As shown, a second groove for accommodating the energy absorbing pad 42 is provided on the upper side of the base 1, and the lower end of the energy absorbing pad 42 is inserted into the second groove. The second groove can limit the energy absorbing pad 42, thereby preventing the energy absorbing pad 42 from being deformed too much and improving the service life of the energy absorbing pad 42.

[0041] Preferably, the depth of the second groove is 1 / 2 of the thickness of the energy absorbing pad 42 .

[0042] Furthermore, if Figure 1 As shown, a limiting pressure plate 44 is sleeved on the support shaft 3 between the first fixing ring 41 and the energy absorbing pad 42. The limiting pressure plate 44 is made of rigid material, and the projections of the limiting pressure plate 44 and the energy absorbing pad 42 in the horizontal plane overlap.

[0043] The reason for this design is that when the support shaft 3 rotates relative to the base 1, the extrusion force exerted by the first fixing ring 41 on the energy absorbing pad 42 can be dispersed on the energy absorbing pad 42 through the limiting pressure plate 44, thereby avoiding stress concentration caused by the direct action of the edge of one side of the first fixing ring 41 being squeezed and the energy absorbing pad 42, which is beneficial to improving the service life of the energy absorbing pad 42.

[0044] Furthermore, if Figure 1 As shown, the support shaft 3 is externally sleeved with a flexible energy absorbing column 5, which is a hollow cylindrical body and is coaxially arranged with the support shaft 3. As a specific implementation, the flexible energy absorbing column 5 in this embodiment is made of a polymer composite material.

[0045] Furthermore, if Figure 1 The base 1 comprises a bottom plate and a plug-in portion disposed on the bottom plate, the shape of the plug-in portion matches the shape of the inner hole of the flexible energy absorbing column 5, and the plug-in portion is inserted into the flexible energy absorbing column 5. The bottom plate is fixedly connected to the ground through fixing parts such as anchor bolts 2 or foundation bolts.

[0046] Furthermore, if Figure 1 and Figure 2 As shown, a spring 61 and an annular pressure plate 62 are sequentially sleeved on the support shaft 3 above the first fixing ring 41 from top to bottom. The annular pressure plate 62 is made of rigid material and can slide up and down along the support shaft 3. The annular pressure plate 62 is fixedly connected to the flexible energy absorbing column 5 by screws 63. The upper end of the spring 61 abuts against a limiter provided on the support shaft 3, and the limiter limits the freedom of the spring 61 to move upward along the support shaft 3. The lower end of the spring 61 abuts against the annular pressure plate 62. When the flexible energy absorbing column 5 moves upward relative to the support shaft 3 under the action of impact, the spring 61 can provide a reverse force, so that the flexible energy absorbing column 5 moves downward and returns to its original position after the impact.

[0047] As a specific implementation, the limiting member described in this embodiment is a second fixing ring 64 sleeved on the support shaft 3, the second fixing ring 64 is made of rigid material, and the second fixing ring 64 is fixedly connected to the support shaft 3 by a set screw 63.

[0048] Furthermore, if Figure 1 and Figure 2As shown, a third fixing ring 65 is provided on the support shaft 3 below the annular pressure plate 62. The third fixing ring 65 is made of a rigid material and is fixedly connected to the support shaft 3 via a set screw 63. When the support shaft 3 is in a vertical state, the annular pressure plate 62 abuts against the third fixing ring 65 under the pressing action of the spring 61, that is, the third fixing ring 65 determines the limit position of the downward movement of the annular pressure plate 62 relative to the support shaft 3.

[0049] In this way, when the flexible energy-absorbing column 5 is impacted and moves upward relative to the support shaft 3 under the impact, the annular pressure plate 62 will be separated from the third fixing ring 65, and at the same time, the spring 61 is compressed and provides a reverse force to prevent the flexible energy-absorbing column 5 from continuing to move upward relative to the support shaft 3. After the impact, the support shaft 3 returns to a vertical state under the action of the energy-absorbing pad 42, and the flexible energy-absorbing column 5 also moves downward under the action of the spring 61 until the annular pressure plate 62 rests against the third fixing ring 65 again (i.e., it has not yet returned to its original position).

[0050] Furthermore, if Figure 1 As shown, the support shaft 3 is sleeved with a flexible energy absorbing disc.

[0051] As a specific implementation, two flexible energy absorption discs are provided on the support shaft 3 described in this embodiment. For the convenience of description, the two flexible energy absorption discs are named as the first flexible energy absorption disc 71 and the second flexible energy absorption disc 72 in order from top to bottom. The first flexible energy absorption disc 71 is located above the second fixing ring 64, and a fourth fixing ring 73 is sleeved on the support shaft 3 above the first flexible energy absorption disc 71. The fourth fixing ring 73 is made of rigid material, and the fourth fixing ring 73 is fixedly connected to the support shaft 3 by a set screw 63. The first flexible energy absorption disc 71 is confined between the second fixing ring 64 and the fourth fixing ring 73. The second flexible energy absorption disc 72 is located below the annular pressure plate 62, and rests on the first fixing ring 41 under the action of its own gravity.

[0052] By arranging two flexible energy-absorbing discs on the support shaft 3, the flexible energy-absorbing column 5 can be supported. That is, when impacted, the two flexible energy-absorbing discs can support the flexible energy-absorbing column 5, thereby preventing the flexible energy-absorbing column 5 from bending and deforming, causing the side wall of the flexible energy-absorbing column 5 to contact the support shaft 3.

[0053] Furthermore, if Figure 4As shown, the flexible energy absorbing disc is provided with a plurality of energy absorbing holes, and the plurality of energy absorbing holes are evenly arranged around the supporting shaft 3 .

[0054] Furthermore, if Figure 1 As shown, the upper end of the flexible energy absorbing column 5 is provided with a cover 8 for blocking the upper end opening of the flexible energy absorbing column 5. The cover 8 is fixedly connected to the flexible energy absorbing column 5 by threaded connection.

[0055] Compared with the traditional steel column and steel mesh, the flexible energy-absorbing anti-collision column provided in the embodiment of the present application has the characteristics of safe and simple design, easy disassembly, compact structure and beautiful appearance. The flexible energy-absorbing column 5 can be made of brightly colored flexible pipes, which can hide the internal structure while being beautiful and safe, and can also play a certain warning role through the bright color.

[0056] Embodiment 2

[0057] The second fixing ring 64 is removed, and the first flexible energy absorbing disc 71 located on the upper side is used as a limiting member. The remaining structures are the same as those in the first embodiment.

[0058] Embodiment 3

[0059] A fifth fixing ring made of a rigid material is disposed below the first flexible energy absorbing disc 71, and the fifth fixing ring is fixedly connected to the support shaft 3 via a set screw 63. The first flexible energy absorbing disc 71 is confined between the fourth fixing ring 73 and the fifth fixing ring, the second fixing ring 64 is located below the fifth fixing ring, and the second fixing ring 64 and the fifth fixing ring are spaced apart by a distance. The rest of the structure is the same as in the first embodiment.

[0060] Embodiment 4

[0061] The second fixing ring 64 is flush with the upper end surface of the support shaft 3, the first flexible energy absorbing disc 71 is located below the third fixing ring 65, the fourth fixing ring 73 is located below the first flexible energy absorbing disc 71, and the first flexible energy absorbing disc 71 is confined between the third fixing ring 65 and the fourth fixing ring 73. The rest of the structure is the same as that of the first embodiment.

[0062] Embodiment 5

[0063] like Figure 5As shown, the lower end of the support shaft 3 is provided with a limiting portion 32 of a cylindrical structure, the limiting portion 32 is coaxially arranged with the support shaft 3, and the diameter of the limiting portion 32 is larger than the diameter of the support shaft 3. A shoulder is formed between the limiting portion 32 and the support shaft 3. A ball joint sleeve 45 is sleeved on the support shaft 3, and the outer side surface of the ball joint sleeve 45 is a spherical structure. The inner hole of the connecting sleeve 43 is a spherical structure matched with the ball joint sleeve 45. Under the limiting action of the first fixing ring 41, the shoulder presses the lower end surface of the ball joint sleeve 45, and the connecting sleeve 43 is pressed on the bottom surface of the first groove 11.

[0064] The remaining structures are the same as those in the first embodiment.

[0065] Other embodiments obtained by those skilled in the art by combining, splitting, reorganizing, etc. the embodiments of the present application on the basis of the embodiments provided in the present application do not exceed the protection scope of the present application.

[0066] The above specific implementation methods have detailed the purpose, technical solutions and beneficial effects of the embodiments of the present application. The above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. That is, any modifications, equivalent substitutions, improvements, etc. made on the basis of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A flexible energy-absorbing anti-collision column, characterized in that: It comprises a base (1), the base (1) is provided with a support shaft (3), and the lower end of the support shaft (3) is spherically connected to the base (1); The support shaft (3) is provided with a first fixing ring (41), and an energy absorbing pad (42) for preventing the support shaft (3) from rotating is provided between the first fixing ring (41) and the base (1).

2. A flexible energy-absorbing anti-collision column according to claim 1, characterized in that: A first groove (11) is provided on the lower side of the base (1), and a connecting sleeve (43) is provided in the first groove (11) and is spherically connected to the lower end of the support shaft (3).

3. A flexible energy-absorbing anti-collision column according to claim 2, characterized in that: The lower end of the support shaft (3) is provided with a ball connection portion (31) in a hemispherical structure that matches the connecting sleeve (43).

4. The flexible energy-absorbing anti-collision column according to claim 2, characterized in that: The lower end of the support shaft is provided with a ball joint sleeve (45) which matches with the connecting sleeve (43).

5. The flexible energy-absorbing anti-collision column according to claim 1, characterized in that: A second groove for accommodating an energy absorbing pad (42) is provided on the upper side of the base (1), and the lower end of the energy absorbing pad (42) is inserted into the second groove.

6. The flexible energy-absorbing anti-collision column according to claim 1, characterized in that: A limiting pressure plate (44) is sleeved on the support shaft (3) between the first fixing ring (41) and the energy absorbing pad (42), and the projections of the limiting pressure plate (44) and the energy absorbing pad (42) in the horizontal plane overlap.

7. The flexible energy-absorbing anti-collision column according to claim 1, characterized in that: The support shaft (3) is externally sleeved with a flexible energy-absorbing column (5), and the support shaft (3) is sequentially sleeved with a spring (61) and an annular pressure plate (62) capable of sliding up and down along the support shaft (3) from top to bottom, and the annular pressure plate (62) is connected to the flexible energy-absorbing column (5), and the upper end of the spring (61) abuts against a limiting member provided on the support shaft (3), and the lower end of the spring (61) abuts against the annular pressure plate (62).

8. The flexible energy-absorbing anti-collision column according to claim 7, characterized in that: A third fixing ring (65) is provided on the support shaft (3) below the annular pressure plate (62).

9. The flexible energy-absorbing anti-collision column according to claim 7, characterized in that: The base (1) comprises a bottom plate and an inserting portion arranged on the bottom plate, and the inserting portion is inserted into the flexible energy absorbing column (5).

10. The flexible energy-absorbing anti-collision column according to claim 7, characterized in that: The support shaft (3) is provided with a flexible energy absorbing disc for supporting the flexible energy absorbing column (5).

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