A multifunctional road and bridge crash barrier

Abstract

This invention belongs to the field of road and bridge technology, specifically relating to a multifunctional road and bridge anti-collision guardrail, comprising: a first contact surface, a second contact surface, a third contact surface, a support frame, and a buffer device; the first and second contact surfaces are fixedly connected to the third contact surface; the support frame is connected to the contact surfaces via a first buffer plate, a second buffer plate, a third buffer plate, and a fourth buffer plate; the buffer device comprises: a buffer device housing, a first spring, a slider, a limiting block, a locking component, and a releasing component. This invention utilizes the deformation of the first, second, third, and fourth buffer plates on the support frame during a collision, and the multi-stage compression of the first spring in the buffer device, which absorbs the impact force generated during the collision in multiple stages. This allows the invention to effectively absorb the impact force generated during a collision, thereby improving the safety of roads and bridges.

Description

Technical Field

[0001] This invention belongs to the field of road and bridge technology, and specifically relates to a multifunctional road and bridge anti-collision guardrail. Background Technology

[0002] With the continuous increase in traffic volume, the safety of roads and bridges is receiving increasing attention. To reduce traffic accidents, protective barriers are typically installed on both sides of roads and bridges. However, existing protective barriers are often structurally simple, lack sufficient strength, and are inadequate in their crashworthiness. They also fail to effectively absorb and disperse the impact force generated during a collision. When vehicles are traveling at high speeds and the impact force is large, not only will the protective barriers be damaged, but passengers in the colliding vehicles may also be injured by the impact. This leaves the safety of roads and bridges with a lingering safety hazard.

[0003] Therefore, it is necessary to study a multifunctional road and bridge crash barrier that can fully absorb the impact force generated during a collision and effectively improve the safety of roads and bridges. Summary of the Invention

[0004] To address the aforementioned shortcomings in existing technologies, this invention provides a multifunctional road and bridge crash barrier to solve the technical problem that existing guardrails cannot adequately absorb the impact force generated during a collision.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A multifunctional road and bridge crash barrier includes: a first contact surface, a second contact surface, a third contact surface, a support frame, and a buffer device;

[0007] The first contact surface and the second contact surface are fixedly connected to the third contact surface. A first connecting plate is provided on the back of the first contact surface, and a second connecting plate is fixedly connected to the back of the second contact surface.

[0008] A third connecting plate and a contact plate are fixedly provided on the back side of the third contact surface;

[0009] The support frame is provided with a first buffer plate, a second buffer plate, a third buffer plate, and a fourth buffer plate on its front side. The first buffer plate is fixedly connected to the first connecting plate, the second buffer plate is fixedly connected to the second connecting plate, the third buffer plate is fixedly connected to the third connecting plate, and the fourth buffer plate is fixedly connected to the contact plate.

[0010] The buffer device includes: a buffer device housing, a first spring, a slider, a limiting block, a locking member, and a releasing member. The buffer device housing is fixedly mounted on a fourth buffer plate. The slider is slidably mounted inside the buffer device housing and is connected to a contact plate via the first spring. The limiting block is hinged to the buffer device housing and can rotate vertically to restrict the sliding of the slider. The locking member is hinged to the buffer device housing and engages with the limiting block to restrict its rotation. The releasing member is slidably mounted on the buffer device housing. The rear end of the releasing member can push the locking member to rotate, and the front end of the releasing member can engage with the contact plate.

[0011] Furthermore, the first contact surface also includes a guide roller, which is rotatably mounted on the front side of the first contact surface and can rotate horizontally about its axis.

[0012] Furthermore, the first contact surface also includes a connecting portion, which connects the first contact surface to the third contact surface. A groove is provided on the front side of the connecting portion.

[0013] Furthermore, the structure of the second contact surface is the same as that of the first contact surface.

[0014] Furthermore, the contact plate is provided with rectangular protrusions, which can cooperate with the release member to push the release member to slide backward.

[0015] Furthermore, the buffer device housing is also provided with a first pin hole and a second pin hole, the locking member is hinged in the second pin hole, and the limiting block is also provided with a lug, the lug is hinged in the first pin hole.

[0016] Furthermore, the locking element includes a first protrusion and a second protrusion.

[0017] Furthermore, a U-shaped groove is provided on the upper surface of the limiting block, which can be squeezed and engaged with the first protrusion to restrict the rotation of the limiting block.

[0018] Furthermore, the second protrusion engages with the rear end of the release element.

[0019] Furthermore, a second spring is also provided on the release component. One end of the second spring is fixedly connected to the front end of the release component, and the other end is fixedly connected to the housing of the buffer device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention discloses a multifunctional road and bridge anti-collision guardrail. The first buffer plate, second buffer plate, third buffer plate and fourth buffer plate set on the support frame are deformed under force during the collision. In addition, the first spring in the buffer device can be compressed in multiple stages, which can absorb the impact force generated during the collision in multiple stages. This invention can effectively absorb the impact force generated during the collision and improve the safety of roads and bridges.

[0022] 2. The present invention discloses a multifunctional road and bridge anti-collision guardrail. By setting guide rollers on the first and second contact surfaces and cooperating with the connecting part with the groove on the front, the vehicle can be guided to the third connecting plate in the event of a collision, so that the guardrail can effectively play a protective role. Furthermore, due to the guiding effect of the guide rollers, the first, second, third, and fourth buffer plates will not be deformed in the event of a minor collision, thus extending the service life of the guardrail. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the first contact surface, the second contact surface, and the third contact surface;

[0025] Figure 3 This is a schematic diagram of the support frame structure;

[0026] Figure 4 This is a schematic diagram of the buffer device.

[0027] The reference numerals used in the attached figures are as follows:

[0028] 1. First contact surface; 11. Contact surface support; 12. Guide roller; 13. Connecting part; 14. First connecting plate; 2. Second contact surface; 21. Second connecting plate; 3. Third contact surface; 31. Third connecting plate; 32. Contact plate; 321. Rectangular protrusion; 4. Support frame; 41. First buffer plate; 42. Second buffer plate; 43. Third buffer plate; 44. Fourth buffer plate; 5. Buffer device; 51. Buffer device housing; 511. First pin hole; 512. Second pin hole; 52. First spring; 53. Slider; 54. Limiting block; 541. Lug; 542. U-shaped groove; 55. Locking element; 551. First protrusion; 552. Second protrusion; 56. Release element; 561. Second spring. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0031] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0032] Please see Figures 1 to 4 As shown, a multifunctional road and bridge anti-collision guardrail includes: a first contact surface 1, a second contact surface 2, a third contact surface 3, a support frame 4, and a buffer device 5.

[0033] The first contact surface 1 includes a contact surface support 11, a guide roller 12, a connecting part 13, and a first connecting plate 14. The guide roller 12 is rotatably mounted on the front side of the first contact surface 1 and can rotate horizontally around its axis. The first contact surface 1 is connected to the third contact surface 3 through the connecting part 13. A groove is provided on the front side of the connecting part 13. It can be understood that when the first contact surface 1 is impacted and subjected to a large impact force, the connecting part 13 bends at the groove on the front side. Specifically, the first contact surface 1 is provided with a first connecting plate 14 on the back side.

[0034] The structure of the second contact surface 2 is the same as that of the first contact surface 1. Specifically, the second contact surface 2 is connected to the end face of the third contact surface 3 on the side away from the first contact surface 1 through a connecting part, and a second connecting plate 21 is provided on the back of the second contact surface 2.

[0035] A third connecting plate 31 and a contact plate 32 are fixedly provided on the back of the third contact surface 3. Specifically, the third connecting plate 31 is located above the third contact surface 3, and the contact plate 32 is located below the third contact surface 3. It can be understood that when the third contact surface 3 is subjected to a large impact force and moves backward, the contact plate 32 can cooperate with the buffer device 5. Specifically, a rectangular protrusion 321 is provided on the contact plate 32.

[0036] The support frame 4 has a first buffer plate 41, a second buffer plate 42, a third buffer plate 43, and a fourth buffer plate 44 on its front side. The first buffer plate 41 is fixedly connected to the first connecting plate 14, the second buffer plate 42 is fixedly connected to the second connecting plate 21, the third buffer plate 43 is fixedly connected to the third connecting plate 31, and the fourth buffer plate 44 is fixedly connected to the contact plate 32. Specifically, the first buffer plate 41, the second buffer plate 42, the third buffer plate 43, and the fourth buffer plate 44 are hollow buffer plates with grooves on their surfaces. This means that when the contact surface is impacted and subjected to impact force, the first buffer plate 41, the second buffer plate 42, the third buffer plate 43, and the fourth buffer plate 44 can shrink and deform to absorb the impact force.

[0037] The buffer device 5 includes: a buffer device housing 51, a first spring 52, a slider 53, a limiting block 54, a locking element 55, and a releasing element 56. The buffer device housing 51 is fixedly mounted on the fourth buffer plate 44. Specifically, the buffer device housing 51 is also provided with a first pin hole 511 and a second pin hole 512. The slider 53 is slidably mounted inside the buffer device housing 51 and is connected to the contact plate 32 via the first spring 52. The limiting block 54 is also provided with a lug 541, which is hinged in the first pin hole 511, allowing the limiting block 54 to rotate vertically. 54 can restrict the sliding of slider 53. Locking member 55 is hinged in the second pin hole 512. Locking member 55 and limiting block 54 are pressed together to restrict the rotation of limiting block 54. Release member 56 is slidably mounted on the buffer device housing 51. Specifically, the release member 56 is also provided with a second spring 561. One end of the second spring 561 is fixedly connected to the front end of the release member 56, and the other end is fixedly connected to the buffer device housing 51. It can be understood that when there is no impact, the second spring 561 can prevent the release member 56 from pushing the locking member 55 to rotate. The rear end of the release member 56 can push the locking member 55. When rotated, the front end of the release member 56 can cooperate with the contact plate 32. Specifically, the locking member 55 includes a first protrusion 551 and a second protrusion 552. A U-shaped groove 542 is provided on the upper surface of the limiting block 54. The U-shaped groove 542 can be squeezed and cooperated with the first protrusion 551 to restrict the rotation of the limiting block 54. The second protrusion 552 cooperates with the rear end of the release member 56. It can be understood that when the third contact surface 3 is impacted and moves backward, the first spring 52 is compressed by force, and at the same time, the first buffer plate 41, the second buffer plate 42, the third buffer plate 43, and the fourth buffer plate 44 are deformed by force to absorb part of the impact force. When the third contact surface 3 moves backward, it pushes the release member 56 to move backward, and the second spring 561 is compressed. At the same time, the release member 56 cooperates with the second protrusion 552 of the locking member 55, pushing the locking member 55 to rotate upward, so that the first protrusion 551 slides out of the U-shaped groove 542. The limiting block 54 no longer restricts the slider 53, and the first spring 52 extends and slides backward until the slider 53 contacts the housing 51 of the buffer device. When the impact force is too large, the first spring 52 is compressed again, and at the same time, the first buffer plate 41, the second buffer plate 42, the third buffer plate 43, and the fourth buffer plate 44 are further deformed to absorb the impact force.

[0038] The working principle of this invention is as follows:

[0039] The support frame 4 is fixedly installed on both sides of roads, bridges, etc. When the first contact surface 1 or the second contact surface 2 is impacted and moves backward, since the first contact surface 1 or the second contact surface 2 is only connected to the support frame 4 on the side away from the third contact surface 3 through the buffer plate, and since the connecting part 13 has a groove on its front, the connecting part 13 is bent and deformed forward under force. The guide roller 12 rotates under force and guides the impacting object to the third contact surface 3. When the third contact surface 3 is impacted and moves backward, the first spring 52 is compressed under force, and at the same time, the first buffer plate 41, the second buffer plate 42, the third buffer plate 43, and the fourth buffer plate 44 are deformed and absorbed by the force. The impact force is divided; when the third contact surface 3 moves backward, it pushes the release member 56 to move backward, the second spring 561 is compressed by force, and at the same time, the release member 56 cooperates with the second protrusion 552 of the locking member 55, pushing the locking member 55 to rotate upward, so that the first protrusion 551 slides out of the U-shaped groove 542, the limiting block 54 no longer restricts the slider 53, and the first spring 52 extends and slides backward until the slider 53 contacts the buffer device housing 51; when the impact force is too large, the first spring 52 is compressed again, and at the same time, the first buffer plate 41, the second buffer plate 42, the third buffer plate 43, and the fourth buffer plate 44 are further deformed to absorb the impact force.

[0040] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics of the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A multifunctional road and bridge crash barrier, characterized in that, include: First contact surface (1), second contact surface (2), third contact surface (3), support frame (4), buffer device (5); The first contact surface (1) and the second contact surface (2) are fixedly connected to the third contact surface (3). A first connecting plate (14) is provided on the back of the first contact surface (1), and a second connecting plate (21) is fixedly connected to the back of the second contact surface (2). A third connecting plate (31) and a contact plate (32) are fixedly provided on the back side of the third contact surface (3); The support frame (4) is provided with a first buffer plate (41), a second buffer plate (42), a third buffer plate (43), and a fourth buffer plate (44). The first buffer plate (41) is fixedly connected to the first connecting plate (14), the second buffer plate (42) is fixedly connected to the second connecting plate (21), the third buffer plate (43) is fixedly connected to the third connecting plate (31), and the fourth buffer plate (44) is fixedly connected to the contact plate (32). The buffer device (5) includes: a buffer device housing (51), a first spring (52), a slider (53), a limiting block (54), a locking element (55), and a releasing element (56). The buffer device housing (51) is fixedly mounted on the fourth buffer plate (44). The slider (53) is slidably mounted inside the buffer device housing (51). The slider (53) is connected to the contact plate (32) through the first spring (52). The limiting block (54) is hinged to the buffer device housing (51). (54) It can rotate in the vertical direction. The limiting block (54) can restrict the sliding of the slider (53). The locking member (55) is hinged to the housing (51) of the buffer device. The locking member (55) and the limiting block (54) are pressed together to restrict the flipping of the limiting block (54). The releasing member (56) is slidably installed on the housing (51) of the buffer device. The rear end of the releasing member (56) can push the locking member (55) to rotate. The front end of the releasing member (56) can cooperate with the contact plate (32).

2. The multifunctional road and bridge crash barrier according to claim 1, characterized in that: The first contact surface (1) further includes a guide roller (12), which is rotatably mounted on the front side of the first contact surface (1) and can rotate horizontally around its axis.

3. A multifunctional road and bridge crash barrier according to claim 2, characterized in that: The first contact surface (1) further includes a connecting part (13), which connects the first contact surface (1) to the third contact surface (3) through the connecting part (13). A groove is provided on the front side of the connecting part (13).

4. A multifunctional road and bridge crash barrier according to claim 3, characterized in that: The structure of the second contact surface (2) is the same as that of the first contact surface (1).

5. A multifunctional road and bridge crash barrier according to claim 1, characterized in that: The contact plate (32) is provided with a rectangular protrusion (321), which can cooperate with the release member (56) to push the release member (56) to slide backward.

6. A multifunctional road and bridge crash barrier according to claim 1, characterized in that: The buffer device housing (51) is also provided with a first pin hole (511) and a second pin hole (512). The locking member (55) is hinged in the second pin hole (512). The limiting block (54) is also provided with a lug (541), which is hinged in the first pin hole (511).

7. A multifunctional road and bridge crash barrier according to claim 1, characterized in that: The locking member (55) includes a first protrusion (551) and a second protrusion (552).

8. A multifunctional road and bridge crash barrier according to claim 7, characterized in that: The upper surface of the limiting block (54) is provided with a U-shaped groove (542), which can be squeezed and cooperated with the first protrusion (551) to restrict the rotation of the limiting block (54).

9. A multifunctional road and bridge crash barrier according to claim 7, characterized in that: The second protrusion (552) engages with the rear end of the release member (56).

10. A multifunctional road and bridge crash barrier according to claim 1, characterized in that: The release member (56) is also provided with a second spring (561), one end of which is fixedly connected to the front end of the release member (56), and the other end is fixedly connected to the housing (51) of the buffer device.

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