A sound-absorbing and impact-buffering highway guardrail

Abstract

The utility model discloses a sound-absorbing and buffering type highway guardrail, comprising a buffer base, wherein three groups of vertical railings are fixedly connected to the top of the buffer base, shock-absorbing rotary drums are sleeved on the outer sides of the three groups of vertical railings, and cross bars are sleeved on the tops of the three groups of vertical railings; the buffer base comprises a base, a buffer bin, a slider, a spring and a top cover, wherein the base is fixed on the road surface by bolts, the buffer bin is opened inside the base, the slider is slidably connected to the center of the inner cavity of the buffer bin, the center of the top of the slider is fixedly connected to the vertical railings, the four groups of springs are fixedly connected to the outer sides of the sliders, the ends of the four groups of springs away from the sliders are all embedded in the inner wall of the buffer bin, and the top cover is fixedly connected to the top of the buffer bin. Compared with the prior art, the utility model absorbs collision energy, improves the buffering effect, and reduces damage to vehicles and guardrails through the design of the buffer base and the shock-absorbing rotary drum.

Description

Technical Field

[0001] The utility model relates to the technical field of highway guardrails, in particular to a sound-absorbing and buffering type highway guardrail. Background Art

[0002] Highway guardrail is the most important transportation infrastructure. my country's expressways have been developed since the 1980s. It plays an important role in the development of the national economy and society and is an important maintenance and safety assurance facility for expressways.

[0003] The highway guardrail in the prior art includes a column and a crash barrier. The crash barrier is a corrugated metal material. The crash barrier is directly installed on one side of the column by screws. The sound absorption and collision buffering performance are low. When an accident occurs, the colliding vehicle cannot be effectively buffered. When a vehicle collides with the guardrail, the energy generated between the vehicle and the guardrail can only be absorbed by the deformation of the vehicle and the guardrail, causing great damage to the vehicle and the guardrail.

[0004] Therefore, the utility model provides a sound-absorbing and impact-buffering highway guardrail to solve the above-mentioned problems. Utility Model Content

[0005] 1) Technical problems to be solved by the utility model

[0006] In view of the deficiencies of the prior art, the utility model designs a sound-absorbing and impact-buffering type highway guardrail, which aims to solve the technical problem that the highway guardrail in the prior art has low sound absorption and impact-buffering performance.

[0007] 2) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A sound-absorbing and impact-buffering highway guardrail comprises a buffer base, the top of which is fixedly connected with three groups of vertical railings, the outer sides of the three groups of vertical railings are sleeved with shock-absorbing rotating drums, and the tops of the three groups of vertical railings are sleeved with cross bars;

[0010] The buffer base includes a base, a buffer bin, a slider, a spring and a top cover. The base is fixed to the road surface by bolts. The buffer bin is opened inside the base. The slider is slidably connected to the center of the inner cavity of the buffer bin. The center of the top of the slider is fixedly connected to the vertical railing. The four groups of springs are all fixedly connected to the outside of the slider. The ends of the four groups of springs away from the slider are all embedded in the inner wall of the buffer bin. The top cover is fixedly connected to the top of the buffer bin.

[0011] As a preferred solution of the utility model, a through hole is opened at the center of the top cover, and the distance between the inner side wall of the through hole and the vertical railing is equal to the distance between the slider and the inner wall of the buffer bin.

[0012] As a preferred solution of the utility model, the shock-absorbing rotating cylinder includes a central sleeve, a shock-absorbing cylinder, sound-absorbing cotton and a turntable. The central sleeve is sleeved on the outside of the vertical railing, the shock-absorbing cylinder is sleeved on the outside of the central sleeve, the sound-absorbing cotton is sleeved on the outside of the shock-absorbing cylinder, and the turntable is fixedly sleeved on the bottom end of the central sleeve and is located above the top cover.

[0013] As a preferred solution of the utility model, the shock absorbing cylinder is made of rubber material, and the inner cavity of the shock absorbing cylinder is evenly provided with a plurality of groups of annular air holes, and the inside of the annular air holes is filled with gas.

[0014] As a preferred solution of the utility model, a plurality of balls are evenly inlaid on the bottom of the turntable, and the plurality of balls are all rollingly connected to the top cover.

[0015] As a preferred solution of the utility model, the connection between the turntable and the central sleeve is correspondingly provided with a latch groove, and a fixed latch is clamped on the inner side of the latch groove.

[0016] As a preferred solution of the utility model, a clamping hole is opened at the bottom of the cross bar, the diameter of the clamping hole is the same as the diameter of the vertical railing, a connecting rod is sleeved between each two groups of cross bars, and the left and right ends of the connecting rod are slidably connected to the cross bar.

[0017] 3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model adopts the design of the buffer base and the shock-absorbing rotary drum. When a vehicle collides with the guardrail, the sound-absorbing cotton on the surface of the shock-absorbing rotary drum will be collided first, and the sound-absorbing cotton will transfer the collision force to the shock-absorbing rotary drum. The rubber shock-absorbing rotary drum and the annular air holes work together to directly perform the first wave of buffering on the collision force. Usually, the collision has a certain collision angle, so the shock-absorbing rotary drum will generate a rotational force, and the shock-absorbing rotary drum will gradually transfer the rotational force to the turntable. The turntable drives the shock-absorbing rotary drum to rotate as a whole under the rolling cooperation of the ball bearings, and the impact force of the collision is dispersed and continuously weakened through the rotation of the shock-absorbing rotary drum. The remaining impact force is transmitted to the vertical railing by the central sleeve inside the shock-absorbing rotary drum. The vertical railing is pushed by the external force of the impact force, and the bottom end of the vertical railing drives the slider to slide in the buffer bin. The slider will squeeze the spring when sliding, and the reaction force generated by the squeezing of the spring will perform the third wave of buffering on the impact force, thereby absorbing the collision energy, improving the buffering effect, and reducing the damage to the vehicle and the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the local structure of the buffer base in the utility model;

[0022] Figure 3 This is a cross-sectional view of the shock-absorbing rotating drum in the utility model;

[0023] Figure 4 This is a bottom view of the turntable structure of the utility model;

[0024] Figure 5 It is a partial cross-sectional view of the cross bar structure of the utility model.

[0025] In the figure: 1. Buffer base; 101. Base; 102. Buffer bin; 103. Slider; 104. Spring; 105. Top cover; 2. Vertical railing; 3. Shock-absorbing rotating cylinder; 301. Center sleeve; 302. Shock-absorbing cylinder; 303. Sound-absorbing cotton; 304. Turntable; 305. Annular air hole; 4. Cross bar; 5. Ball; 6. Fixed pin; 7. Connecting rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] The utility model provides a sound-absorbing and impact-buffering highway guardrail, which is intended to solve the technical problem of low sound absorption and impact-buffering performance of highway guardrails in the prior art;

[0029] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0030] A sound-absorbing and impact-buffering highway guardrail comprises a buffer base 1, the top of which is fixedly connected with three groups of vertical railings 2, the outer sides of the three groups of vertical railings 2 are sleeved with shock-absorbing rotating drums 3, and the tops of the three groups of vertical railings 2 are sleeved with crossbars 4;

[0031] First, see Figure 1 and Figure 2 In this embodiment, the specific structure of the buffer base 1 is as follows:

[0032] The buffer base 1 includes a base 101, a buffer bin 102, a slider 103, a spring 104 and a top cover 105. The base 101 is fixed to the road surface by bolts. The buffer bin 102 is opened inside the base 101. The slider 103 is slidably connected to the center of the inner cavity of the buffer bin 102. The center of the top of the slider 103 is fixedly connected to the vertical railing 2. Four groups of springs 104 are all fixedly connected to the outside of the slider 103. The ends of the four groups of springs 104 away from the slider 103 are all embedded in the inner wall of the buffer bin 102. The top cover 105 is fixedly connected to the top of the buffer bin 102. The top cover 105 protects the slider 103 and the spring 104 in the buffer bin 102 and ensures the stability of the slider 103.

[0033] When the guardrail is hit during use, the vertical railing 2 will be pushed by the external force of the collision, and the bottom end of the vertical railing 2 will drive the slider 103 to slide in the buffer bin 102. When the slider 103 slides, it will squeeze the spring 104, and the reaction force generated by the squeezing of the spring 104 will buffer the external force during the collision.

[0034] Among them, see Figure 2 A through hole is opened at the center of the top cover 105, and the distance between the inner wall of the through hole and the vertical railing 2 is equal to the distance between the slider 103 and the inner wall of the buffer bin 102. When the vertical railing 2 and the slider 103 are moved by collision, the through hole at the center of the top cover 105 can ensure that the vertical railing 2 has enough space to move.

[0035] Second, see Figure 1 , Figure 3 and Figure 4 In this embodiment, the specific structure of the shock-absorbing drum 3 is as follows:

[0036] The shock-absorbing rotating cylinder 3 includes a central sleeve 301, a shock-absorbing cylinder 302, sound-absorbing cotton 303 and a turntable 304. The central sleeve 301 is sleeved on the outer side of the vertical railing 2, and the shock-absorbing cylinder 302 is sleeved on the outer side of the central sleeve 301. When a vehicle collides with the guardrail, the shock-absorbing cylinder 302 effectively buffers the energy generated by the colliding vehicle and reduces the damage caused by the vehicle collision. The sound-absorbing cotton 303 is sleeved on the outer side of the shock-absorbing cylinder 302. The sound-absorbing cotton 303 reduces the diffusion of sound outside the guardrail during the driving of the vehicle. The turntable 304 is fixedly sleeved on the bottom end of the central sleeve 301 and is located above the top cover 105.

[0037] For further information, see Figure 2 The shock-absorbing cylinder 302 is made of rubber, and a plurality of annular air holes 305 are evenly opened in the inner cavity of the shock-absorbing cylinder 302. The annular air holes 305 are filled with gas. When a vehicle collides with the guardrail, the gas filled in the annular air holes 305 improves the buffering effect.

[0038] For further information, see Figure 1 , Figure 3 and Figure 4 A number of balls 5 are evenly inlaid on the bottom of the turntable 304, and the balls 5 are all rollingly connected to the top cover 105. When a vehicle collides with the guardrail, there is usually a certain collision angle, so the shock-absorbing drum 3 generates a rotational force, and the shock-absorbing drum 3 gradually transmits the rotational force to the turntable 304. The turntable 304 drives the shock-absorbing drum 3 to rotate as a whole under the rolling cooperation of the balls 5, and the impact force of the collision is weakened by the rotation of the shock-absorbing drum 3.

[0039] For further information, see Figure 4 The connection between the turntable 304 and the center sleeve 301 is provided with a corresponding latch groove, and the inner side of the latch groove is clamped with a fixed latch 6, which makes the connection between the turntable 304 and the center sleeve 301 more secure.

[0040] For further information, see Figure 1 and Figure 5 A card hole is opened at the bottom of the cross bar 4, and the diameter of the card hole is the same as the diameter of the vertical railing 2. A connecting rod 7 is sleeved between every two groups of cross bars 4. The left and right ends of the connecting rod 7 are slidably connected to the cross bar 4. When a vehicle collides, the connecting rod 7 slides between the cross bars 4 to ensure that the cross bar 4 will not be deformed in the collision.

[0041] The utility model workflow:

[0042] When a vehicle collides with the guardrail, the sound-absorbing cotton 303 on the surface of the shock-absorbing drum 3 will be impacted first, and the sound-absorbing cotton 303 will transfer the impact force to the shock-absorbing drum 302. The rubber shock-absorbing drum 302 and the annular air hole 305 work together to directly buffer the first wave of the impact force. Usually, the collision has a certain collision angle, so the shock-absorbing drum 3 will generate a rotational force, and the shock-absorbing drum 3 will gradually transfer the rotational force to the turntable 304. The turntable 304 drives the shock-absorbing drum 3 with the rolling cooperation of the ball 5. The shock-absorbing drum 3 rotates as a whole, disperses and continuously weakens the impact force of the collision, and the remaining impact force is transmitted to the vertical railing 2 by the central sleeve 301 inside the shock-absorbing drum 3. The vertical railing 2 will be pushed by the external force of the impact, and the bottom end of the vertical railing 2 will drive the slider 103 to slide in the buffer bin 102. When the slider 103 slides, it will squeeze the spring 104. The reaction force generated by the squeezing of the spring 104 will perform a third wave of buffering on the impact force, thereby improving the buffering effect.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sound-absorbing and impact-buffering highway guardrail, comprising a buffer base (1), characterized in that: The top of the buffer base (1) is fixedly connected with three groups of vertical railings (2), the outer sides of the three groups of vertical railings (2) are sleeved with shock-absorbing rotating cylinders (3), and the tops of the three groups of vertical railings (2) are sleeved with cross bars (4); The buffer base (1) comprises a base (101), a buffer bin (102), a slider (103), a spring (104) and a top cover (105); the base (101) is fixed on a road surface by bolts; the buffer bin (102) is opened inside the base (101); the slider (103) is slidably connected to the center of the inner cavity of the buffer bin (102); the center of the top of the slider (103) is fixedly connected to the vertical railing (2); four groups of springs (104) are fixedly connected to the outside of the slider (103); the ends of the four groups of springs (104) away from the slider (103) are embedded in the inner wall of the buffer bin (102); and the top cover (105) is fixedly connected to the top of the buffer bin (102).

2. The sound-absorbing and impact-buffering highway guardrail according to claim 1 is characterized in that: A through hole is provided at the center of the top cover (105), and the distance between the inner side wall of the through hole and the vertical railing (2) is equal to the distance between the slider (103) and the inner wall of the buffer bin (102).

3. The sound-absorbing and impact-buffering highway guardrail according to claim 1 is characterized in that: The shock-absorbing rotating cylinder (3) comprises a central sleeve (301), a shock-absorbing cylinder (302), sound-absorbing cotton (303) and a rotating disk (304); the central sleeve (301) is sleeved on the outer side of the vertical railing (2); the shock-absorbing cylinder (302) is sleeved on the outer side of the central sleeve (301); the sound-absorbing cotton (303) is sleeved on the outer side of the shock-absorbing cylinder (302); and the rotating disk (304) is fixedly sleeved on the bottom end of the central sleeve (301) and is located above the top cover (105).

4. The sound-absorbing and impact-buffering highway guardrail according to claim 3 is characterized in that: The shock absorbing cylinder (302) is made of rubber, and the inner cavity of the shock absorbing cylinder (302) is evenly provided with a plurality of groups of annular air holes (305), and the inside of the annular air holes (305) is filled with gas.

5. The sound-absorbing and impact-buffering highway guardrail according to claim 3 is characterized in that: A plurality of balls (5) are evenly inlaid on the bottom of the rotating disk (304), and the plurality of balls (5) are all rollingly connected to the top cover (105).

6. The sound-absorbing and impact-buffering highway guardrail according to claim 3 is characterized by: The connection points between the rotating disk (304) and the central sleeve (301) are respectively provided with latching slots, and the inner sides of the latching slots are clamped with fixed latching pins (6).

7. The sound-absorbing and impact-buffering highway guardrail according to claim 1 is characterized in that: A clamping hole is provided at the bottom of the cross bar (4), the diameter of the clamping hole is the same as the diameter of the vertical railing (2), and a connecting rod (7) is sleeved between each two groups of cross bars (4), and the left and right ends of the connecting rod (7) are slidably connected to the cross bar (4).

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