Hollow interlayer compound steel pipe energy dissipation anti-collision device and installation method

Abstract

The invention discloses a hollow interlayer compound steel pipe energy dissipation anti-collision device and an installation method, and relates to the technical field of traffic safety protection. The device comprises a high-strength supporting plate, the bottom of the high-strength supporting plate is fixedly connected with a rubber strip, the bottom of the rubber strip is fixedly connected with a center shaft, the bottom end of the high-strength supporting plate is fixedly connected with a semi-arc barrel, and the semi-arc barrel is filled with first energy absorption balls; a middle layer energy absorption assembly is arranged between the bottom of the center shaft and the inner wall of the upper portion of the semicircular arc barrel. The energy dissipation protection effect is improved, meanwhile, assembly can be conducted, installation is convenient, the anti-collision position can be adjusted easily, self-repairing can be conducted after collision is conducted, repeated use is achieved, cost is reduced, then the practicability of the anti-collision device is improved, slow self-repairing can be conducted when large-force collision is conducted, and the service life of the anti-collision device is prolonged. And the damage of bounce to the driver is avoided, and the protection effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of traffic safety protection, in particular to a hollow sandwich composite steel pipe energy dissipation crash barrier device and installation method. BACKGROUND

[0002] In the field of traffic facilities, the crash barrier device as a common traffic safety protection facility plays a crucial role in ensuring traffic safety, mainly used to absorb and buffer the energy generated during impact, thereby reducing the harm to the driver. With the rapid development of modern transportation, higher requirements are put forward for the performance, installation convenience and mobility of the crash barrier device.

[0003] However, the existing energy dissipation crash barrier device for traffic safety protection still has the following defects in use: 1. The existing crash barrier device such as concrete crash wall and ordinary steel crash barrier has large weight, is inconvenient to install, cannot be flexibly adjusted to the crash position, the energy absorption effect of the ordinary steel crash barrier is limited, the crash effect is poor, and the existing crash barrier device is difficult to repair and has high cost after being impacted, cannot realize self-recovery and reuse, thus the practicality of the existing crash barrier device needs to be improved.

[0004] 2. Some existing reusable crash barrier devices will generate a large rebound force to the impact object after impact energy absorption due to the need for self-recovery, cannot adjust the rebound force according to the impact force, and will cause secondary injury to the driver when a large impact force is applied, thus reducing the protection effect of the crash barrier device. SUMMARY

[0005] The present application aims to solve the problems of the existing crash barrier device, such as large weight, inconvenient installation, limited energy absorption effect, poor crash effect, difficult repair and high cost after impact, and inability to reuse, and the practicality needs to be improved, and the rebound force generated by the impact will cause secondary injury to the driver, thus reducing the protection effect of the crash barrier device, and provides a hollow sandwich composite steel pipe energy dissipation crash barrier device and installation method.

[0006] The present application specifically adopts the following technical solutions to achieve the above-mentioned purposes: The utility model relates to a hollow sandwich composite steel pipe energy-dissipation anti-collision device, including high strength support board, the bottom fixed connection of high strength support board has rubber strip, the bottom fixed connection of rubber strip has central axis, the bottom fixed connection of high strength support board has semicircle arc cylinder, the inside of semicircle arc cylinder fills energy-absorbing ball no.

[0007] Further, the outer periphery of the top of the high-strength support plate is uniformly provided with grooves for increasing friction, thereby playing a speed reduction effect by increasing friction when a non-frontal collision occurs.

[0008] Further, the intermediate layer energy-absorbing assembly includes a circular groove, the outer periphery of the bottom of the central axis is uniformly provided with a circular groove, the inside of the circular groove is placed with an inner rubber pad, the upper inner wall of the semicircle arc cylinder is uniformly fixedly connected with an outer rubber pad, the position of the inner rubber pad and the outer rubber pad is opposite inside and outside, the central part between the inner rubber pad and the outer rubber pad is provided with an energy-absorbing capsule, the inside of the energy-absorbing capsule is symmetrically connected with two piston plates, the inside of the piston plate and the inner rubber pad, and the outside of the piston plate and the outer rubber pad are fixedly connected with a spring one, the adjacent energy-absorbing capsules are drivingly connected with an energy-absorbing hinge.

[0009] Further, the inside of the energy-absorbing capsule is filled with high-density energy-absorbing liquid to improve the energy-absorbing effect.

[0010] Further, the energy-absorbing hinge is composed of two alloy hinges which are hingedly connected with adjacent energy-absorbing capsules on the left and right sides, and a small compression energy-absorbing ball is fixedly connected at the central part of the alloy hinge, thereby realizing three-dimensional energy-absorbing effect at different angles through the joint action of the alloy hinge and the small compression energy-absorbing ball.

[0011] Further, the telescopic control assembly comprises a notch, the bottom of the central shaft is provided with a notch, the notch is located at the center between adjacent intermediate layer energy absorption assemblies, a connecting column is fixedly installed at the bottom end of the central shaft bottom notch, a clamping block is uniformly and elastically limitingly and slidingly connected to the periphery of the connecting column bottom, a cylindrical barrel is fixedly installed at the upper inner wall of the semicircular arc barrel, and the cylindrical barrels are located below the connecting columns, a limiting column is limitingly and slidingly connected to the inside of the cylindrical barrel, a spring two is fixedly connected between the bottom end of the limiting column and the inner wall of the cylindrical barrel bottom, a cylindrical hole is formed at the center of the top of the limiting column, an annular groove is formed at the outside of the middle part of the limiting column inside the cylindrical hole, an annular spring piece is placed at the outer ring of the annular groove, and an extrusion column is uniformly and fixedly connected to the periphery of the annular spring piece.

[0012] Further, the inner wall of the top of the cylindrical barrel and the outer wall of the top of the limiting column are in the shape of a circular truncated cone with a diameter gradually decreasing from bottom to top, the inner wall of the top of the cylindrical barrel is matched with the outer wall of the top of the limiting column, and the limitingly and slidingly connected part of the extrusion column and the limiting column is located at the inclined slope surface of the top of the limiting column, so that when the limiting column moves upward, the extrusion column can be inwardly retracted through the cooperation of the extrusion column and the inner wall of the top of the cylindrical barrel.

[0013] Further, the diameter of the cylindrical hole is greater than the diameter of the connecting column, and the clamping block is matched with the annular groove, so that the connecting column can be inserted into the inside of the cylindrical hole, and the clamping block and the annular groove are matched to realize the clamping of the connecting column and the limiting column.

[0014] A hollow sandwich composite steel pipe energy dissipation and anti-collision device installation method comprises the following steps: S1, installation of the contact support assembly, fixed connection of the high-strength support plate, the rubber strip and the central shaft is completed through a strong adhesive material, and a connecting column is installed at the bottom end of the central shaft; S2, installation of the central energy absorption assembly, the intermediate layer energy absorption assembly and the telescopic control assembly are installed on the upper inner wall of the semicircular arc barrel, and then the semicircular arc barrel is fixedly installed at the bottom end of the high-strength support plate; S3, installation of the buffer protection plate, the protection installation plate is fixedly installed with the high-strength support plate, so that the protection installation plate protects and supports the assembled high-strength support plate and semicircular arc barrel; S4, installation of the lateral energy absorption assembly, the lateral energy absorption mechanism is installed between the left and right sides of the bottom of the semicircular arc barrel and the left and right sides of the inner side of the protection installation plate; S5, the installation of the whole energy dissipation anti-collision device, the assembled energy dissipation anti-collision device is installed on high-strength solid material, and the high-strength solid material with the installed energy dissipation anti-collision device is deeply buried in the ground at the anti-collision position to be fixed.

[0015] The beneficial effects of the present application are as follows: 1、The present application, through the combination structure design of high-strength support plate, rubber strip, center shaft and semicircular arc cylinder, cooperates with the center layer energy absorption assembly, lateral energy absorption mechanism and bottom impact-resistant hollow design, can multi-stage energy dissipation buffering for the suffered impact, thereby improving the energy dissipation protection effect, and can be assembled, convenient to install, is conducive to adjusting the anti-collision position, and can self-repair after suffering impact, to realize repeated use, reduce the cost, and thereby improve the practicality of the anti-collision device.

[0016] 2、The present application, through the design of the extension control assembly between the center shaft and the semicircular arc cylinder, can quickly self-repair when suffering small force impact, is conducive to meeting multiple impacts, and ensures the protection effect, and when suffering large force impact, through the design of the extension control assembly, the self-repair of the anti-collision device can be slowed down, thereby not generating a large rebound force, avoiding the harm of the rebound force to the driver, and improving the protection effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present application; Figure 2 is a sectional three-dimensional structure schematic diagram of the present application; Figure 3 is a sectional three-dimensional structure schematic diagram of the present application Figure 1 ; Figure 4 is a sectional three-dimensional structure schematic diagram of the present application Figure 2 ; Figure 5 is a sectional three-dimensional structure schematic diagram of the present application Figure 6 is a three-dimensional structure schematic diagram of the present application Figure 7 is a three-dimensional structure schematic diagram of the present application Figure 8 is a sectional three-dimensional structure schematic diagram of the present application Figure 9 is a sectional three-dimensional structure schematic diagram of the present application

[0018] Fig. 1: high-strength support plate; 2, rubber strip; 3, central shaft; 4, semicircular arc cylinder; 5, energy-absorbing ball I; 6, middle layer energy-absorbing assembly; 61, circular groove; 62, inner rubber pad; 63, outer rubber pad; 64, energy-absorbing capsule; 65, piston plate; 66, spring I; 67, energy-absorbing hinge; 7, telescopic control assembly; 71, notch; 72, connecting column; 73, clamping block; 74, cylindrical cylinder; 75, limiting column; 76, spring II; 77, cylindrical hole; 78, ring groove; 79, annular spring; 710, extrusion column; 8, protective mounting plate; 9, lateral energy-absorbing mechanism; 10, impact-resistant hollow; 11, energy-absorbing ball II. DETAILED DESCRIPTION

[0019] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0020] A hollow sandwich composite steel pipe energy-dissipation anti-collision device and installation method according to a preferred embodiment of the present application will be described in detail as follows, as shown in the drawings. Figures 1-4 The hollow sandwich composite steel pipe energy-dissipation anti-collision device includes a high-strength support plate 1, the periphery of the top of the high-strength support plate 1 is uniformly provided with grooves for increasing friction, thereby playing a speed-reducing effect by increasing friction when a non-frontal collision occurs, the bottom of the high-strength support plate 1 is fixedly connected with a rubber strip 2, the bottom of the rubber strip 2 is fixedly connected with a central shaft 3, the bottom end of the high-strength support plate 1 is fixedly connected with a semicircular arc cylinder 4, the semicircular arc cylinder 4 is filled with an energy-absorbing ball I 5, a middle layer energy-absorbing assembly 6 is arranged between the bottom of the central shaft 3 and the upper inner wall of the semicircular arc cylinder 4, a telescopic control assembly 7 is arranged between the bottom of the central shaft 3 and the upper inner wall of the semicircular arc cylinder 4, the middle layer energy-absorbing assembly 6 and the telescopic control assembly 7 are alternately distributed front and back, the left and right sides of the high-strength support plate 1 are fixedly connected with protective mounting plates 8, lateral energy-absorbing mechanisms 9 are symmetrically fixedly installed between the bottom left and right sides of the semicircular arc cylinder 4 and the inner bottom of the protective mounting plates 8, the bottom of each protective mounting plate 8 is provided with an impact-resistant hollow 10, and the impact-resistant hollow 10 is filled with an energy-absorbing ball II 11.

[0021] Further, as shown in the drawings, Figures 4-6 The middle layer energy-absorbing assembly 6 includes a circular groove 61, the periphery of the bottom of the central shaft 3 is uniformly provided with the circular groove 61, the circular groove 61 is internally placed with an inner rubber pad 62, the upper inner wall of the semicircular arc cylinder 4 is uniformly fixedly connected with an outer rubber pad 63, the positions of the inner rubber pad 62 and the outer rubber pad 63 are opposite inside and outside, the central part between the inner rubber pad 62 and the outer rubber pad 63 is provided with an energy-absorbing capsule 64, two piston plates 65 are symmetrically limitingly and slidably connected inside the energy-absorbing capsule 64, and the energy-absorbing capsule 64 is filled with high-density energy-absorbing liquid between the two piston plates 65 to improve the energy-absorbing effect.

[0022] The spring one 66 is fixedly connected between the inner piston plate 65 and the inner rubber pad 62, and between the outer piston plate 65 and the outer rubber pad 63, and the energy-absorbing hinge 67 is transmissionally connected between adjacent energy-absorbing capsules 64, the energy-absorbing hinge 67 is composed of two alloy hinges which are hingedly connected with adjacent energy-absorbing capsules 64 on the left and right sides, and a small compression energy-absorbing ball is fixedly connected at the center of the alloy hinge, and through the joint action of the alloy hinge and the small compression energy-absorbing ball, the three-dimensional energy-absorbing effect of different angles is realized.

[0023] Further, as shown in Figures 7-9 The telescopic control assembly 7 includes a notch 71, the bottom of the center shaft 3 is provided with the notch 71, and the notch 71 is located at the center between adjacent intermediate layer energy-absorbing assemblies 6, a connecting column 72 is fixedly installed at the bottom end of the center shaft 3 at the notch 71, a clamping block 73 is uniformly and elastically limitingly and slidingly connected at the bottom of the connecting column 72, a cylindrical barrel 74 is fixedly installed at the upper inner wall of the semicircular barrel 4, and the cylindrical barrel 74 is located below the connecting column 72, a limiting column 75 is limitingly and slidingly connected in the cylindrical barrel 74, a spring two 76 is fixedly connected between the bottom end of the limiting column 75 and the inner wall at the bottom of the cylindrical barrel 74, a cylindrical hole 77 is formed at the center of the top of the limiting column 75, a ring groove 78 is formed at the outer side of the middle part of the cylindrical hole 77 in the limiting column 75, an annular elastic sheet 79 is placed at the outer circle of the ring groove 78, the diameter of the cylindrical hole 77 is greater than the diameter of the connecting column 72, and the clamping block 73 is matched with the ring groove 78, so that the connecting column 72 can be inserted into the cylindrical hole 77, and the clamping of the connecting column 72 and the limiting column 75 is realized through the cooperation of the clamping block 73 and the ring groove 78.

[0024] The outer periphery of the annular elastic sheet 79 is uniformly fixedly connected with extrusion columns 710, the extrusion columns 710 extend outwardly through the limiting column 75 to the outer side of the limiting column 75, and the extrusion columns 710 are limitingly and slidingly connected with the limiting column 75, the inner wall at the top of the cylindrical barrel 74 and the outer wall at the top of the limiting column 75 are in the shape of a circular truncated cone with the diameter gradually decreasing from bottom to top, and the inner wall at the top of the cylindrical barrel 74 is matched with the outer wall at the top of the limiting column 75, the limitingly and slidingly connected part of the extrusion columns 710 and the limiting column 75 is located at the inclined slope surface at the top of the limiting column 75, so that when the limiting column 75 moves upwardly, the extrusion columns 710 can be inwardly contracted through the cooperation of the extrusion columns 710 and the inner wall at the top of the cylindrical barrel 74.

[0025] A hollow sandwich composite steel pipe energy-dissipation anti-collision device installation method comprises the following steps: S1, installation of the contact support assembly, fixed connection of the high-strength support plate 1, the rubber strip 2 and the center shaft 3 is completed by a strong adhesive material, and the connecting column 72 is installed at the bottom end of the center shaft 3; S2, installation of the central energy-absorbing component, the intermediate layer energy-absorbing component 6 and the telescopic control component 7 are installed on the upper inner wall of the semicircular arc cylinder 4, and then the semicircular arc cylinder 4 is fixedly installed at the bottom end of the high-strength support plate 1; S3, installation of the buffer protection plate, the protection installation plate 8 is fixedly installed with the high-strength support plate 1, so that the protection installation plate 8 protects and supports the assembled high-strength support plate 1 and the semicircular arc cylinder 4; S4, installation of the lateral energy-absorbing component, the lateral energy-absorbing mechanism 9 is installed between the left and right sides of the bottom of the semicircular arc cylinder 4 and the left and right sides of the inner bottom of the protection installation plate 8; S5, installation of the overall energy-dissipation anti-collision device, the assembled energy-dissipation anti-collision device is installed on the high-strength solid material, and the high-strength solid material with the installed energy-dissipation anti-collision device is deeply buried in the ground at the anti-collision position to be fixed.

[0026] The working principle of the application is as follows: After the assembly and installation are completed, when the anti-collision device is subjected to side impact, the lateral energy-absorbing mechanism 9 between the protection installation plate 8 and the semicircular arc cylinder 4, the anti-impact hollowing 10 at the bottom of the protection installation plate 8 and the energy-absorbing ball 11 can absorb and buffer the impact from the side, thereby achieving the protection effect, and the design of the groove at the top of the high-strength support plate 1 can also increase the friction when the side impact occurs, thereby achieving the effect of deceleration.

[0027] When normal impact occurs, the rubber strip 2 between the high-strength support plate 1 and the central shaft 3 can first deform and buffer, and the semicircular arc cylinder 4 can be pushed to collapse after the high-strength support plate 1 is subjected to impact, and further energy-absorbing buffering can be achieved by the cooperation of the energy-absorbing ball 5, the intermediate layer energy-absorbing component 6 between the semicircular arc cylinder 4 and the central shaft 3 can play the role of energy-absorbing buffering and stable support, and is beneficial to self-repair after impact, then the bottom lateral energy-absorbing mechanism 9 and the anti-impact hollowing 10 are designed to cooperate with the energy-absorbing ball 11 to realize the energy-absorbing buffering of the tail, and then through the multi-stage energy-absorbing buffering, the energy-absorbing anti-collision effect of the anti-collision device is improved.

[0028] The principle that the intermediate layer energy-absorbing component 6 plays the role of energy-absorbing buffering and stable support is as follows: When the semi-circular arc cylinder 4 collapses, the spring 66 between the inner rubber pad 62 and the outer rubber pad 63 can be compressed to achieve a buffering effect, and at the same time, the compression of the spring 66 can push the piston plate 65 inside the energy-absorbing capsule 64 to move towards each other, thereby compressing the high-density energy-absorbing liquid between the piston plates 65 inside the energy-absorbing capsule 64. The high-density energy-absorbing liquid improves the energy-absorbing and buffering effect and has better elastic recovery capability. The design of the energy-absorbing hinge 67 between the energy-absorbing capsules 64 uses alloy hinges and small compression energy-absorbing balls fixedly connected at the center to improve the supporting force, which is beneficial to self-repairing after impact and can also disperse the compression stress, thereby further improving the energy-absorbing effect.

[0029] When subjected to a small force impact, the deformation of the semi-circular arc cylinder 4 is small, so that the clamping block 73 at the bottom of the connecting column 72 is not enough to be clamped in the ring groove 78, and the middle layer energy-absorbing assembly 6 can quickly and elastically repair, thereby quickly self-repairing to meet multiple impacts when subjected to a small force impact.

[0030] When subjected to a large force impact, the connecting column 72 is inserted into the limiting column 75, and the clamping block 73 cooperates with the ring groove 78 to realize the clamping of the connecting column 72 and the limiting column 75. Therefore, during the self-repairing after impact, the limiting column 75 can pull the connecting column 72 under the action of the spring 76, so that the high-strength supporting plate 1 and the semi-circular arc cylinder 4 cannot be quickly unfolded and repaired, thereby avoiding the large rebound force of the anti-collision device when subjected to a large force impact, thereby avoiding the harm of the rebound force to the driver.

[0031] During the process of slowly unfolding and repairing the limiting column 75 upward by the connecting column 72, through the cooperation of the top inner wall of the cylindrical cylinder 74 and the top outer wall of the limiting column 75, after the limiting column 75 moves to the top inside of the cylindrical cylinder 74, the extrusion column 710 contacts the top inner wall of the cylindrical cylinder 74, the extrusion column 710 moves inward, thereby pushing the ring-shaped elastic sheet 79 inward, thereby pushing the clamping block 73 to retract, so that the clamping block 73 is separated from the ring groove 78, thereby enabling the high-strength supporting plate 1 and the semi-circular arc cylinder 4 to be normally unfolded and repaired subsequently, and the limiting column 75 will move downward under the action of the restoring force of the spring 76 to limit the repair of the impact device after the next large force impact.

[0032] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hollow sandwich composite steel pipe energy dissipation and anti-collision device, comprising a high-strength support plate (1), characterized in that: The bottom of the high-strength support plate (1) is fixedly connected to a rubber strip (2), the bottom of the rubber strip (2) is fixedly connected to a central axis (3), the bottom end of the high-strength support plate (1) is fixedly connected to a semi-circular cylinder (4), the interior of the semi-circular cylinder (4) is filled with an energy-absorbing ball (5), an intermediate layer energy-absorbing component (6) is provided between the bottom of the central axis (3) and the upper inner wall of the semi-circular cylinder (4), a telescopic control component (7) is provided between the bottom of the central axis (3) and the upper inner wall of the semi-circular cylinder (4), the intermediate layer energy-absorbing component (6) and the telescopic control component (7) are alternately distributed front and back, the left and right sides of the high-strength support plate (1) are fixedly connected to protective mounting plates (8), lateral energy-absorbing mechanisms (9) are symmetrically fixedly installed between the left and right sides of the bottom of the semi-circular cylinder (4) and the inner bottom of the protective mounting plate (8), the bottom of the protective mounting plate (8) is provided with an anti-impact hollow (10), and the interior of the middle anti-impact hollow (10) is filled with energy-absorbing balls (11).

2. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 1 is characterized in that: Grooves for increasing friction are evenly formed on the periphery of the top of the high-strength support plate (1).

3. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 1 is characterized in that: The intermediate layer energy absorbing component (6) comprises: Circular grooves (61), wherein the outer periphery of the bottom of the central shaft (3) is evenly provided with circular grooves (61); An inner rubber pad (62), wherein the inner rubber pad (62) is placed inside the circular groove (61); An outer rubber pad (63), the outer rubber pad (63) is evenly fixedly connected to the upper inner wall of the semicircular cylinder (4), and the inner rubber pad (62) and the outer rubber pad (63) are positioned opposite to each other inside and outside; Energy-absorbing capsules (64), each of which is provided at the center between the inner rubber pad (62) and the outer rubber pad (63); A piston plate (65), wherein two piston plates (65) are symmetrically limited and slidably connected inside the energy absorbing capsule (64); Spring 1 (66), spring 1 (66) is fixedly connected between the inner piston plate (65) and the inner rubber pad (62), and between the outer piston plate (65) and the outer rubber pad (63); An energy absorbing hinge (67) is provided between adjacent energy absorbing capsules (64) for transmission connection.

4. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 3 is characterized in that: The space between the two piston plates (65) inside the energy absorbing capsule (64) is filled with high-density energy absorbing liquid.

5. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 3 is characterized in that: The energy absorbing hinge (67) is composed of two alloy hinges hinged to adjacent energy absorbing capsules (64) on the left and right sides, and a small compressed energy absorbing ball is fixedly connected to the center of the alloy hinge.

6. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 1 is characterized in that: The telescopic control component (7) comprises: A notch (71), wherein the bottom of the central shaft (3) is provided with a notch (71), and the notch (71) is located at the center between adjacent intermediate layer energy absorbing components (6); A connecting column (72), wherein the bottom end of the notch (71) at the bottom of the central shaft (3) is fixedly mounted with the connecting column (72); A clamping block (73) is uniformly elastically limited and slidably connected to the periphery of the bottom of the connecting column (72); A cylindrical cylinder (74), wherein the cylindrical cylinder (74) is fixedly mounted on the upper inner wall of the semicircular cylinder (4), and the cylindrical cylinder (74) is located below the connecting column (72); A limiting post (75), wherein the inner limiting sliding connection of the cylindrical tube (74) is connected to the limiting post (75); Spring 2 (76), a spring 2 (76) is fixedly connected between the bottom end of the limiting column (75) and the bottom inner wall of the cylindrical tube (74); A cylindrical hole (77), wherein a cylindrical hole (77) is provided at the center of the top of the limiting column (75); An annular groove (78), wherein an annular groove (78) is provided on the outer side of the middle portion of the cylindrical hole (77) inside the limiting column (75); An annular spring piece (79), wherein the annular spring piece (79) is placed on the outer ring inside the annular groove (78); The extrusion column (710) is evenly and fixedly connected to the periphery of the annular spring piece (79), and the extrusion column (710) extends outward through the limiting column (75) to the outside of the limiting column (75), and the extrusion column (710) is connected to the limiting column (75) in a limiting sliding manner.

7. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 6 is characterized in that: The inner wall of the top of the cylindrical tube (74) and the outer wall of the top of the limiting column (75) are both truncated cone-shaped with a diameter gradually decreasing from bottom to top, and the inner wall of the top of the cylindrical tube (74) is adapted to the outer wall of the top of the limiting column (75).

8. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 6 is characterized in that: The diameter of the cylindrical hole (77) is larger than the diameter of the connecting column (72), and the clamping block (73) is adapted to the annular groove (78).

9. The hollow sandwich composite steel pipe energy dissipation and anti-collision device according to claim 6, characterized in that: The limiting sliding connection between the extrusion column (710) and the limiting column (75) is located on the top frustum-shaped inclined slope of the limiting column (75).

10. A method for installing a hollow sandwich composite steel pipe energy dissipation and anti-collision device, using the hollow sandwich composite steel pipe energy dissipation and anti-collision device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Installation of the contact support assembly, completing the fixed connection of the high-strength support plate (1), the rubber strip (2) and the central shaft (3) by using a strong adhesive material, and installing a connecting column (72) at the bottom end of the central shaft (3); S2, installation of the central energy absorbing assembly, installing the intermediate layer energy absorbing assembly (6) and the telescopic control assembly (7) on the upper inner wall of the semi-circular cylinder (4), and then fixing the semi-circular cylinder (4) on the bottom end of the high-strength support plate (1); S3, installing the buffer protection plate, fixing the protection mounting plate (8) and the high-strength support plate (1) so that the protection mounting plate (8) protects and supports the assembled high-strength support plate (1) and the semi-circular arc cylinder (4); S4, installation of the lateral energy absorption assembly, installing the lateral energy absorption mechanism (9) between the left and right sides of the bottom of the semicircular arc cylinder (4) and the left and right sides of the inner bottom of the protective mounting plate (8); S5. Installation of the overall energy dissipation and anti-collision device: Install the assembled energy dissipation and anti-collision device on the high-strength solid material, and bury the high-strength solid material with the energy dissipation and anti-collision device deep underground at the anti-collision position to complete the fixation.

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