Anti-collision device for road traffic transportation engineering

Abstract

The invention discloses an anti-collision device for road traffic transportation engineering, and belongs to the technical field of road anti-collision devices. The anti-collision device for the road traffic transportation engineering comprises a pair of vertically-arranged supporting frames which are spaced, and further comprises an energy absorption spring which is horizontally arranged, one end of the energy absorption spring is fixedly connected with the supporting frames, and a ball screw assembly which comprises a ball screw, a buffer plate and a ball screw sleeve and is located at the connecting end away from the energy absorption spring and the supporting frames. The limiting assembly comprises a limiting cylinder, a limiting gear and clamping teeth, the limiting cylinder is horizontally arranged between the pair of supporting frames, the two ends of the limiting cylinder penetrate through the pair of supporting frames respectively and are rotationally connected with the supporting frames, the ball screw sleeve is fixed in the limiting cylinder, the limiting gear is fixedly arranged on the limiting cylinder in a sleeving mode, and the clamping teeth are arranged on the limiting gear. According to the automobile safety protection device, the position of the buffered spring is limited through the arranged limiting assembly, and the situation that the buffered spring rebounds to cause secondary damage to an automobile owner is prevented.

Description

Technical Field

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

[0002] Anti-collision guardrail is a typical cold-formed steel product with the advantages of good impact resistance, low cost, long life, higher safety, and green environmental protection. The fixing plate of the anti-collision guardrail is fixed to the ground by expansion bolts. It is usually installed on both sides of the road, around production equipment, in the corners of buildings, on both sides of the door and the edge of the cargo platform, etc., effectively reducing the damage to equipment and facilities caused by accidental collisions when handling equipment is shuttling back and forth.

[0003] The existing anti-collision device for transportation engineering includes 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, so as to gradually change the direction of the vehicle, effectively protecting the anti-collision device and the personnel 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 relatively low. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and to 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, with a gap between the pair of support frames, and also comprising an energy absorbing spring, which is horizontally arranged and fixedly connected to the support frame at one end; a ball screw assembly, comprising 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 between the energy absorbing spring and the support frame, the ball screw sleeve is located at the other end of the ball screw, and a limiting assembly, comprising a limiting cylinder, a limiting gear and a latching tooth, the limiting cylinder is horizontally arranged between the pair of support frames, the two ends of the limiting cylinder respectively pass through the pair of support frames and are rotatably connected thereto, the ball screw sleeve is fixed in the limiting cylinder, the limiting gear is fixedly sleeved on the limiting cylinder, a baffle is fixedly connected to the top of the limiting spring, the baffle is connected to the support frame, and the latching tooth can engage with the limiting gear.

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

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

[0008] Preferably, the end of the latch tooth is configured to be wedge-shaped, and the interval between adjacent teeth of the limiting gear is a ramp tooth engaged with the latch tooth. The latch tooth is engaged in the interval between adjacent teeth of the limiting gear, and can enter the next ramp tooth along one ramp tooth of the limiting gear when the limiting gear rotates. When the limiting gear rotates in the opposite direction, the latch tooth is engaged in two adjacent ramp teeth of the limiting gear.

[0009] Preferably, a pad is fixedly provided on one side of the support frame, the ball screw passes through the pad, and the energy absorbing spring is fixedly embedded on the pad.

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

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: an anti-collision device for road traffic engineering of the present invention, when an out-of-control vehicle hits the guard plate, the energy absorption spring will be compressed and the ball screw will be displaced at the same time; when the ball screw is displaced, the ball screw sleeve will drive the limit cylinder and the limit gear to rotate due to the traction force during the displacement of the ball screw; when the limit gear rotates, the latching tooth will be moved to displace the latching tooth; when the latching tooth passes through the adjacent gear teeth of the limit gear, it will be reset and re-locked between the adjacent gear teeth of the limit gear; when the energy absorption spring needs to recover to generate elastic force, the limit gear needs to be reversed, and the latching tooth is completely embedded between the adjacent gear teeth of the limit gear to prevent the limit gear from reversing, thereby limiting the limit cylinder and the ball screw sleeve, making it impossible for the ball screw to be reset due to the elasticity of the energy absorption spring itself, thereby achieving force release and positioning at the same time, avoiding rebound after force release and causing secondary injury to the injured person. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 It is a partial structural schematic diagram of the present invention.

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

[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 explosion structure of the latch teeth, limit spring and handle of the present invention.

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

[0018] The following is combined with Figure 1~Figure 5 In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general 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" and similar words mean that the elements or objects appearing before 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 schematic diagrams of the structure.

[0020] The anti-collision device for road traffic engineering provided by the present invention is as follows: Figures 1 to 5As shown in the figure, it includes a pair of vertically arranged support frames 1, with a gap between the pair of support frames 1, and also includes an energy absorbing spring 6, which is horizontally arranged and fixedly connected to the support frame 1 at one end; a ball screw 4 component, including a ball screw 4, a buffer plate 7 and a ball screw sleeve 3; 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; the ball screw sleeve 3 is located at the other end of the ball screw 4; a limiting assembly, including a limiting cylinder 2, a limiting gear 8 and a latch tooth 9; 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, and the latch tooth 9 can engage with the limiting gear 8.

[0021] When the out-of-control vehicle hits the guard plate, the energy absorbing spring 6 will be compressed and the ball screw 4 will be displaced. When the ball screw 4 is displaced, the ball screw sleeve 3 will drive the limit cylinder 2 and the limit gear 8 to rotate due to the traction force of the ball screw 4 when it is displaced. When the limit gear 8 rotates, the latch tooth 9 will be pushed to displace the latch tooth 9. When the latch tooth 9 passes the adjacent gear teeth of the limit gear 8, it will be reset and re-locked between the adjacent gear teeth 9 of the limit gear 8. When the energy absorbing spring 6 needs to restore the elastic force, the limit gear 8 needs to reverse, and the latch tooth 9 is completely embedded between the adjacent gear teeth of the limit gear 8 to prevent the limit gear 8 from reversing. Then the limit 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, so as to achieve force release and positioning at the same time, and avoid rebound after force release to cause secondary injury to the injured. When the vehicle hits the device, it 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 staff performs rescue, the vehicle can be reset after it is separated from the device.

[0022] Preferably, Figures 3-5 As shown in the figure, the support frame 1 is provided with a connecting piece latch 9, the top of which is fixedly connected to a limit spring 10, and the top of the limit spring 10 is fixedly connected to a baffle 11. The support frame 1 is provided with a pair of connecting plates, and the pair of connecting plates are respectively fixedly connected to a pair of support frames 1. A rotating shaft is horizontally fixedly inserted between the pair of connecting plates, and 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.

[0023] In the embodiment of the present invention, the support frame 1 supports the set connecting plate, and the connecting plate supports the set handle 12 and the rotating shaft. When the limit gear 8 rotates, the latch tooth 9 will be moved. At this time, the latch tooth 9 will be displaced and press the set limit spring 10, and because the latch tooth 9 is fixedly connected to the handle 12, and the handle 12 is rotatably sleeved on the rotating shaft, when the limit gear 8 shifts the latch tooth 9, the latch tooth 9 will swing along the axis of the rotating shaft. As the limit gear 8 rotates, when it is between the adjacent intervals of the gear teeth on the limit gear 8, the compressed limit spring 10 will rebound the latch tooth 9 and limit the latch tooth 9 between the adjacent intervals of the gear teeth of the limit gear 8, preventing the limit gear 8 from reversing, thereby further limiting the position of the limit cylinder 2 and the ball screw 4, thereby preventing the energy absorption spring 6 from generating a rebound force when compressed, causing secondary injury to the wounded.

[0024] Preferably, Figure 1 As shown, the diameter of the energy absorbing spring 6 increases gradually from the buffer plate 7 along the length direction of the ball screw 4 .

[0025] The energy absorbing spring 6 of the present invention is designed to have a diameter that increases gradually from the buffer plate 7 along the length direction of the ball screw 4, so that the energy absorbing spring 6 can be gathered together when deformed by force, thereby improving the buffering capacity and avoiding stacking that causes the energy absorbing spring 6 to have a reduced force release capacity.

[0026] Preferably, Figure 1~2 As shown in the figure, the end of the latch tooth 9 is set to be wedge-shaped, and the interval between adjacent teeth of the limit gear 8 is a ramp tooth engaged with the latch tooth 9. The latch tooth 9 is engaged in the interval between 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 tooth 9 is engaged in two adjacent ramp teeth of the limit gear 8.

[0027] The latch tooth 9 provided in the present invention is arranged in an arc shape, which can better match the interval between the teeth of the limiting gear 8. The latch tooth 9 is tightly attached to the teeth of the limiting gear 8 to prevent the limiting gear 8 from reversing, and the end of the latch tooth 9 is arranged in a wedge shape to better fit the gap between the teeth of the limiting gear 8, thereby improving the limiting ability of the limiting gear 8 when it is reversed.

[0028] Preferably, Figure 1 As shown, a pad 5 is fixedly provided on one side of the support frame 1, the ball screw 4 passes through the pad 5, the energy absorbing spring 6 is fixedly embedded on the pad 5, and the baffle 11 is fixedly installed on a pair of connecting plates by bolts.

[0029] The support frame 1 supports the pad 5. When the buffer plate 7 is hit, the ball screw 4 rotatably connected to it will rotate under the action of the ball screw sleeve 3, and the energy absorption spring 6 will be pressed. The impact force exerted on the buffer plate 7 is buffered by the energy absorption spring 6. The pad 5 is used to expand the force-bearing surface of the energy absorption spring 6 and protect the surface of the support frame 1.

[0030] The method of using the anti-collision device for road traffic engineering of the present invention is as follows: The staff installed the device on the side of the road. When a moving vehicle unexpectedly hits the device, the buffer plate 7 absorbs energy first. At the same time, the buffer plate 7 pushes the ball screw 4 to move and causes the energy-absorbing spring 6 to be compressed to reduce the impact force. At the same time, the buffer plate 7 pushes the ball screw 4 to move and causes the energy-absorbing spring 6 to be compressed to reduce the impact force.

[0031] When the ball screw 4 is displaced, the ball screw sleeve 3 will drive the limit cylinder 2 and the limit gear 8 to rotate due to the traction force of the ball screw 4 when it is displaced. When the limit gear 8 rotates, the latch tooth 9 will be moved. At this time, the latch tooth 9 will be displaced and press the set limit spring 10. Since the latch tooth 9 is fixedly connected to the handle 12, the handle 12 is rotatably sleeved on the rotating shaft. When the limit gear 8 moves the latch tooth 9, the latch tooth 9 will swing along the axis of the rotating shaft. When the limit gear 8 is between the adjacent gaps of the gear teeth on the limit gear 8, the compressed limit spring 10 rebounds and limits the latch tooth 9 between the adjacent gaps of the gear teeth on the limit gear 8, preventing the limit gear 8 from reversing, thereby limiting the limit tube 2 and the ball screw sleeve 3, so that the ball screw 4 cannot be reset by the elasticity of the energy absorption spring 6 itself, thereby achieving positioning while releasing force, avoiding secondary injury to the injured person caused by rebound after force release, and subsequently only needing to bend the handle 12 to apply pressure to one end of the latch tooth 9, so that the latch tooth 9 is disengaged from the adjacent tooth gap of the limit gear 8, thereby allowing the ball screw 4 to be reset by the elasticity of the energy absorption spring 6 itself, and driving the ball screw 4 and the buffer plate 7 back to their original positions.

[0032] The displacement of the ball screw will compress the energy absorbing spring 6. Later, during rescue, the staff can move the latch tooth 9 to disengage the limit gear 8, so that the buffer plate 7 can be elastically reset through the support of the energy absorbing spring 6.

[0033] 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. 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, and one end of the spring is 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 absorption 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 absorption 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 latching tooth (9), wherein the limiting cylinder (2) is horizontally arranged between a pair of supporting frames (1), and the two ends of the limiting cylinder (2) respectively penetrate the pair of supporting 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 latching tooth (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 supporting frame (1), and the latching tooth (9) can mesh with the limiting gear (8).

2. The anti-collision device for road traffic engineering as claimed in claim 1, characterized in that: A pair of connecting plates are provided on the support frame (1), and the pair of connecting plates are respectively fixedly connected to the pair of supporting frames (1). A rotating shaft is horizontally fixedly inserted between the pair of connecting plates, and a handle (12) is rotatably sleeved on the rotating shaft. The handle (12) is fixedly connected to the latch teeth (9), and the baffle (11) is fixedly connected to the connecting plates.

3. The anti-collision device for road traffic engineering as claimed in 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).

4. The anti-collision device for road traffic engineering as claimed in claim 1, characterized in that: The end of the latching tooth (9) is configured to be wedge-shaped, and the interval between adjacent teeth of the limit gear (8) is a ramp tooth that engages with the latching tooth (9). The latching tooth (9) is meshed in the interval between 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 reverse direction, the latching tooth (9) is locked in two adjacent ramp teeth of the limit gear (8).

5. The anti-collision device for road traffic engineering as claimed in claim 1, characterized in that: A pad (5) is fixedly arranged 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 on the pad (5).

6. The anti-collision device for road traffic engineering as claimed in claim 2, characterized in that: The baffle (11) is fixedly mounted on a pair of connecting plates by means of bolts.

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