Anti-collision device for road traffic engineering

Abstract

The application discloses a kind of road traffic transport engineering anti-collision devices, belong to road anti-collision device technical field.This kind of road traffic transport engineering anti-collision device includes a pair of vertical support frame, there is interval between a pair of support frame, further include energy-absorbing spring, horizontal setting, one end is fixedly connected with support frame, ball screw assembly, including ball screw, buffer plate and ball screw sleeve, and located away from the connecting end of energy-absorbing spring and support frame, ball screw sleeve is located the other end of ball screw, limiting component, including limiting cylinder, limit gear and catch, limiting cylinder is horizontally arranged between a pair of support frame, limiting cylinder two ends are respectively penetrated a pair of support frame and rotationally connected with it, ball screw sleeve is fixed in limiting cylinder, limit gear is fixedly sleeved on limiting cylinder, catch can be engaged with limit gear, the position of buffered spring is limited by the limiting component of the present application, prevent buffered spring rebound to cause secondary injury to car owner.

Description

Technical Field

[0001] The present invention relates to the technical field of road anti-collision devices, and in particular to an anti-collision device for road transportation engineering. Background Art

[0002] Anti-collision guardrails are typical cold-formed steel products with the advantages of good impact resistance, low cost, long life, higher safety, and green environmental protection. The fixing plates of anti-collision guardrails are fixed to the ground by expansion bolts. They are usually installed on both sides of the road, around production equipment, in the corners of buildings, on both sides of doors and on the edges of cargo platforms, etc., effectively reducing damage to equipment and facilities caused by accidental collisions when handling equipment is moving back and forth.

[0003] Existing anti-collision devices for transportation engineering include a fixed plate threadedly connected to the ground, an impact transfer assembly and a shock-absorbing support. The impact transfer assembly includes a fixed frame, a roller and a parallel connecting rod connector. When in use, the shock-absorbing support cooperates with the impact transfer assembly to play a buffering role when hit by a vehicle, and can also gradually change the direction of the impact, that is, the fixed frame is driven to deflect through the parallel connecting rod connector and cooperate with the roller to rotate, gradually changing the direction of the vehicle, effectively protecting the anti-collision device and the people in the vehicle. However, a single spring will rebound and reset due to its own elasticity after being squeezed by force. The rebound thrust can easily cause secondary displacement of the vehicle after an accident, which can easily cause secondary injury to the injured, and the protective performance is low. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide an anti-collision device for road traffic engineering, which limits the spring under force and prevents it from rebounding and causing secondary injury to the injured.

[0005] The present invention provides an anti-collision device for road traffic engineering, comprising a pair of vertically arranged support frames, a gap between the pair of support frames, and an energy absorbing spring, which is horizontally arranged and fixedly connected to the support frame at one end. The ball screw assembly comprises a ball screw, a buffer plate and a ball screw sleeve, the ball screw is passed through the energy absorbing spring, the buffer plate is fixed to the end of the ball screw and is located away from the connection end of the energy absorbing spring and the support frame, the ball screw sleeve is located at the other end of the ball screw, and a limit assembly comprises a limit cylinder, a limit gear and a latch tooth, the limit cylinder is horizontally arranged between the pair of support frames, the two ends of the limit cylinder respectively pass through the pair of support frames and are rotatably connected thereto, the ball screw sleeve is fixed in the limit cylinder, the limit gear is fixedly sleeved on the limit cylinder, the top of the limit spring is fixedly connected with a baffle, the baffle is connected to the support frame, and the latch tooth can mesh with the limit gear.

[0006] Preferably, the support frame is provided with a pair of connecting plates, a pair of the connecting plates are fixedly connected with a pair of the support frames respectively, a rotating shaft is horizontally fixedly inserted between a pair of the connecting plates, a handle is rotatably sleeved on the rotating shaft, the handle is fixedly connected with the catch, and the baffle is fixedly connected with the connecting plate.

[0007] Preferably, the diameter of the energy-absorbing spring increases along the length direction of the ball screw from the buffer plate.

[0008] Preferably, the end of the catch is wedge-shaped, the adjacent teeth of the limiting gear are spaced apart to form slope teeth matched with the catch, the catch is engaged in the space between the adjacent teeth of the limiting gear, and the catch can enter the next slope tooth along a slope tooth of the limiting gear when the limiting gear rotates, and the catch is clamped in the adjacent two slope teeth of the limiting gear when the limiting gear reversely rotates.

[0009] Preferably, the support frame is provided with a pair of connecting plates, a pair of the connecting plates are fixedly connected with a pair of the support frames respectively, a rotating shaft is horizontally fixedly inserted between a pair of the connecting plates, a handle is rotatably sleeved on the rotating shaft, the handle is fixedly connected with the catch, and the baffle is fixedly connected with the connecting plate.

[0010] Preferably, the baffle is fixedly installed on a pair of the connecting plates by bolts.

[0011] Compared with the prior art, the anti-collision device for road traffic transportation engineering has the beneficial effects that when a vehicle hits the protective plate, the energy-absorbing spring is compressed and the ball screw is displaced, the ball sleeve is driven to rotate the limiting cylinder and the limiting gear through the traction force of the ball screw when the ball sleeve passes through the displacement of the ball screw, the catch is displaced when the limiting gear rotates, the catch is reset between the adjacent teeth of the limiting gear after the catch passes through the adjacent teeth of the limiting gear, the limiting gear needs to be reversed when the energy-absorbing spring needs to restore the elastic force, the catch is completely embedded between the adjacent teeth of the limiting gear to prevent the limiting gear from being reversed, and the limiting cylinder and the ball sleeve are limited, so that the ball screw cannot be reset through the elasticity of the energy-absorbing spring, the elastic force is released and positioning is performed at the same time, and the rebound after the release of the elastic force avoids causing secondary injury to the injured person. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0013] Figure 2 It is a schematic diagram of the partial structure of the present application.

[0014] Figure 3 It is a schematic diagram of the installation structure of the support frame, the pad, the catch and the baffle of the present application.

[0015] Figure 4It is a schematic diagram of the matching structure of the ball screw, energy absorbing spring, ball screw sleeve and limiting cylinder of the present invention.

[0016] Figure 5 It is a schematic diagram of the exploded structure of the latch teeth, limit spring and handle of the present invention.

[0017] Explanation of the accompanying reference numerals: 1. Support frame; 2. Limiting cylinder; 3. Ball screw sleeve; 4. Ball screw; 5. Pad; 6. Energy-absorbing spring; 7. Buffer plate; 8. Limiting gear; 9. Gear; 10. Limiting spring; 11. Baffle; 12. Handle. DETAILED DESCRIPTION

[0018] The following is combined with Figures 1-5 In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

[0019] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only structural schematic diagrams.

[0020] The anti-collision device for road transportation engineering provided by the present invention is as follows: Figures 1-5As shown in the figure, it comprises a pair of vertically arranged support frames 1, a pair of support frames 1 is spaced apart, and further comprises an energy-absorbing spring 6, which is horizontally arranged and fixedly connected to the support frame 1 at one end, a ball screw 4 assembly, which comprises a ball screw 4, a buffer plate 7 and a ball screw sleeve 3, the ball screw 4 is arranged in the energy-absorbing spring 6, the buffer plate 7 is fixed at the end of the ball screw 4 and is located away from the connecting end of the energy-absorbing spring 6 and the support frame 1, the ball screw sleeve 3 is located at the other end of the ball screw 4, a limiting assembly, which comprises a limiting cylinder 2, a limiting gear 8 and a clamping tooth 9, the limiting cylinder 2 is horizontally arranged between a pair of support frames 1, the limiting cylinder 2 is respectively penetrated through a pair of support frames 1 and is rotatably connected thereto, the ball screw sleeve 3 is fixed in the limiting cylinder 2, the limiting gear 8 is fixedly sleeved on the limiting cylinder 2, and the clamping tooth 9 can be engaged with the limiting gear 8.

[0021] When the out-of-control vehicle hits the protective plate, the energy-absorbing spring 6 is compressed and the ball screw 4 is displaced at the same time. When the ball screw 4 is displaced, the ball screw sleeve 3 will drive the limiting cylinder 2 and the limiting gear 8 to rotate due to the traction force of the ball screw 4 during displacement. When the limiting gear 8 rotates, the clamping tooth 9 will be moved to displace the clamping tooth 9. When the clamping tooth 9 passes through the adjacent teeth of the limiting gear 8, it will be reset and clamped between the adjacent clamping teeth 9 of the limiting gear 8. When the energy-absorbing spring 6 needs to recover the elastic force, the limiting gear 8 needs to be reversed, and the clamping tooth 9 is completely embedded between the adjacent teeth of the limiting gear 8 to prevent the limiting gear 8 from being reversed. In turn, the limiting cylinder 2 and the ball screw sleeve 3 are limited, so that the ball screw 4 cannot be reset by the elasticity of the energy-absorbing spring 6 itself, achieving positioning while releasing the force, avoiding secondary injury to the injured person after the rebound after releasing the force. The vehicle hitting the device is always in contact with the buffer plate 7 and the end of the ball screw 4, so the energy-absorbing spring 6 cannot push the ball screw 4 and the buffer plate 7 to reset. Only when the subsequent rescue workers rescue, the vehicle can be reset after leaving the device.

[0022] Preferably, as Figures 3-5 As shown in the figure, the support frame 1 is provided with a limiting spring 10 fixedly connected to the top of the clamping tooth 9, and the top of the limiting spring 10 is fixedly connected with a baffle 11. The support frame 1 is provided with a pair of connecting plates, and the connecting plates are fixedly connected with a pair of support frames 1 respectively. A rotating shaft is horizontally fixedly inserted between the connecting plates, and a handle 12 is rotatably sleeved on the rotating shaft. The handle 12 is fixedly connected with the clamping tooth 9, and the baffle 11 is fixedly connected with the connecting plate.

[0023] The support frame 1 supports the connecting plate in the embodiment of the application, the connecting plate supports the handle 12 and the rotating shaft, the limiting gear 8 drives the pawl 9 to move when rotating, at this time, the pawl 9 is displaced and presses the limiting spring 10, and because the pawl 9 is fixedly connected with the handle 12, the handle 12 is rotatably arranged on the rotating shaft, when the limiting gear 8 drives the pawl 9 to move, the pawl 9 swings along the axis of the rotating shaft, and when the limiting gear 8 rotates and is located between the adjacent intervals of the gear teeth of the limiting gear 8, the compressed limiting spring 10 rebounds to limit the pawl 9 between the adjacent intervals of the gear teeth of the limiting gear 8, so that the limiting gear 8 is prevented from reversing, thereby further limiting the positions of the limiting cylinder 2 and the ball screw 4, and preventing the rebound force of the energy-absorbing spring 6 from causing secondary injury to the wounded person when the energy-absorbing spring 6 is compressed.

[0024] Preferably, as shown in the figure, the diameters of the energy-absorbing springs 6 along the length direction of the ball screw 4 increase in sequence from the buffer plate 7. Figure 1

[0025] The energy-absorbing springs 6 are designed to increase in diameter in sequence from the buffer plate 7 along the length direction of the ball screw 4, so that the energy-absorbing springs 6 can be gathered together when deformed under force, the buffering capacity is improved, and the situation of stacking is avoided to reduce the energy-absorbing capacity of the energy-absorbing springs 6.

[0026] Preferably, as shown in the figure, the end of the pawl 9 is wedge-shaped, the adjacent gear tooth intervals of the limiting gear 8 are inclined teeth matched with the pawl 9, the pawl 9 is engaged in the interval between the adjacent gear teeth of the limiting gear 8, and can enter the next inclined tooth along an inclined tooth of the limiting gear 8 when the limiting gear 8 rotates, and the pawl 9 is clamped in the adjacent two inclined teeth of the limiting gear 8 when the limiting gear 8 reversely rotates. Figures 1-2

[0027] The pawl 9 is arranged in an arc shape, which can better match the interval between the gear teeth of the limiting gear 8, the pawl 9 is tightly attached to the gear teeth of the limiting gear 8 to prevent the limiting gear 8 from reversing, and the end of the pawl 9 is wedge-shaped, which better fits the gap between the gear teeth of the limiting gear 8, and improves the limiting capacity when the limiting gear 8 reverses.

[0028] Preferably, as shown in the figure, the side of the support frame 1 is fixedly provided with a pad 5, the ball screw 4 penetrates the pad 5, the energy-absorbing spring 6 is fixedly embedded on the pad 5, and the baffle 11 is fixedly installed on the pair of connecting plates by bolts. Figure 1

[0029] ​​​The support frame 1 supports the pad disc 5, the buffer plate 7 is rotationally connected with the ball screw 4, and the ball screw 4 is driven to rotate under the action of the ball screw sleeve 3 when the buffer plate 7 is impacted, and the energy-absorbing spring 6 arranged is pressed, the impact force on the buffer plate 7 is buffered through the energy-absorbing spring 6, and the pad disc 5 is used for expanding the stress surface of the energy-absorbing spring 6 and protecting the surface of the support frame 1.

[0030] The use method of the anti-collision device for road traffic transportation engineering is as follows:

[0031] When the vehicle running on the road collides with the device due to an accident, the buffer plate 7 first absorbs energy, and the buffer plate 7 drives the ball screw 4 to displace and make the energy-absorbing spring 6 compress, so that the impact force is reduced.

[0032] When the ball screw 4 displaces, the ball screw sleeve 3 drives the limiting cylinder 2 and the limiting gear 8 to rotate under the traction of the ball screw 4, the limiting gear 8 drives the pawl 9 to move when rotating, the pawl 9 is displaced and presses the limiting spring 10 arranged, and the handle 12 is rotationally arranged on the rotating shaft due to the fixed connection between the pawl 9 and the handle 12, when the limiting gear 8 drives the pawl 9 to move, the pawl 9 swings along the axis of the rotating shaft,

[0033] When the limiting gear 8 rotates and is located between the adjacent intervals of the gear teeth of the limiting gear 8, the compressed limiting spring 10 rebounds to limit the pawl 9 between the adjacent intervals of the gear teeth of the limiting gear 8, so that the limiting gear 8 is prevented from being reversed, and then the limiting cylinder 2 and the ball screw sleeve 3 are limited, so that the ball screw 4 cannot be reset by the elasticity of the energy-absorbing spring 6, the positioning is realized while the force is released, the secondary injury of the injured person caused by rebounding after the force is released is avoided, and then the handle 12 is only needed to be moved to press one end of the pawl 9, so that the pawl 9 is separated from the gap between the adjacent gear teeth of the limiting gear 8, and then the ball screw 4 is reset by the elasticity of the energy-absorbing spring 6, and the ball screw 4 and the buffer plate 7 are driven to the original position.

[0034] The ball screw is displaced to compress the energy-absorbing spring 6, and then the pawl 9 is moved to separate the limiting gear 8 during rescue, so that the buffer plate 7 can be reset by the elasticity of the energy-absorbing spring 6.

[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-collision device for road traffic engineering, characterized in that: It comprises a pair of vertically arranged support frames (1), with a gap between the pair of support frames (1), and further comprises: An energy absorbing spring (6) is arranged horizontally, with one end fixedly connected to the support frame (1); A ball screw assembly, comprising a ball screw (4), a buffer plate (7) and a ball screw sleeve (3), wherein the ball screw (4) is inserted into the energy absorbing spring (6), the buffer plate (7) is fixed to the end of the ball screw (4) and is located away from the connection end between the energy absorbing spring (6) and the support frame (1), and the ball screw sleeve (3) is located at the other end of the ball screw (4); The limiting assembly comprises a limiting cylinder (2), a limiting gear (8) and a latch (9), wherein the limiting cylinder (2) is horizontally arranged between a pair of support frames (1), and both ends of the limiting cylinder (2) respectively pass through a pair of support frames (1) and are rotatably connected thereto, the ball screw sleeve (3) is fixed in the limiting cylinder (2), the limiting gear (8) is fixedly sleeved on the limiting cylinder (2), the top of the latch (9) is fixedly connected to a limiting spring (10), the top of the limiting spring (10) is fixedly connected to a baffle (11), the baffle (11) is connected to the support frame (1), and the latch (9) can mesh with the limiting gear (8); a pair of connecting plates are provided on the support frame (1), and the pair of connecting plates are respectively connected to a The support frame (1) is fixedly connected, and a rotating shaft is fixedly inserted horizontally between a pair of connecting plates. A handle (12) is rotatably sleeved on the rotating shaft. The handle (12) is fixedly connected to the latch (9), and the baffle (11) is fixedly connected to the connecting plate; the end of the latch (9) is set to a wedge shape, and the adjacent teeth of the limit gear (8) are spaced apart as ramp teeth that engage with the latch (9). The latch (9) is engaged in the interval between the adjacent teeth of the limit gear (8) and can enter the next ramp tooth along one ramp tooth of the limit gear (8) when the limit gear (8) rotates. When the limit gear (8) rotates in the opposite direction, the latch (9) is locked in two adjacent ramp teeth of the limit gear (8).

2. The anti-collision device for road traffic engineering according to claim 1, characterized in that: The diameter of the energy absorbing spring (6) increases gradually from the buffer plate (7) along the length direction of the ball screw (4).

3. The anti-collision device for road traffic engineering according to claim 1, characterized in that: A pad (5) is fixedly provided on one side of the support frame (1), the ball screw (4) passes through the pad (5), and the energy absorbing spring (6) is fixedly embedded in the pad (5).

4. The anti-collision device for road traffic engineering according to claim 1, characterized in that: The baffle (11) is fixedly mounted on a pair of the connecting plates by means of bolts.

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