Anti-collision device for road maintenance vehicle and road maintenance vehicle

Abstract

According to the anti-collision device for the road maintenance vehicle, when a protection plate is subjected to external collision, a hydraulic column firstly achieves first-stage damping, the hydraulic column absorbs and buffers collision force through compression of the hydraulic column, when the collision force is too large, the pressure borne by the driving end of the hydraulic column is increased, and the pressure in the hydraulic column is increased; the internal hydraulic oil rapidly moves downwards under the driving of pressure, the one-way valve rapidly moves downwards under the driving of the hydraulic oil, when the one-way valve downwards moves to the position corresponding to the sensor, the sensor sends a collected signal to the controller, the controller is started, at the moment, the electromagnetic assembly is powered on, and the electromagnetic assembly is powered on. Due to the fact that the two electromagnetic assemblies are in a repulsive state after being powered on, upward driving force is exerted on the protection plate, then the driving end of the hydraulic column is driven to move upwards, partial counteracting of impact force is achieved, the phenomenon that the device is scrapped under large impact force is avoided, and safety is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway maintenance, and relates to an anti-collision device for a highway maintenance vehicle and the highway maintenance vehicle. Background Art

[0002] With the continuous increase in highway infrastructure and vehicle ownership in my country, it is imperative to increase the maintenance of highways. During the maintenance of highways, the probability of collision accidents is greatly increased due to the extremely high speed of vehicles on the highway and the slow movement of highway maintenance vehicles. Once two vehicles collide, due to the high relative speed and strong impact force, it is very easy to cause casualties on both sides. Therefore, the research and development of anti-collision devices for highway maintenance vehicles is imminent, and an effective and rapid anti-collision device is urgently needed to reduce casualties in traffic accidents.

[0003] At present, the structure of the existing anti-collision and shock-absorbing device is mainly based on mechanical structure, using springs as the main body, and other auxiliary devices to form a mechanical vehicle anti-collision and shock-absorbing device to achieve the purpose of protection. The protection measures of the mechanical anti-collision device with springs as the main body are imperfect, the impact force caused by the collision cannot be effectively resisted, the anti-collision device cannot quickly resist the impact force, and after the collision occurs, the spring anti-collision device is completely scrapped, the loss is irreversible, and the device cost is high. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the anti-collision device in the prior art cannot effectively resist the impact force when encountering a large impact force, causing the device to be scrapped, resulting in poor anti-collision performance and low safety of the device, and to provide an anti-collision device for a highway maintenance vehicle and a highway maintenance vehicle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-collision device for a highway maintenance vehicle comprises a hydraulic column, wherein the upper end of the hydraulic column is connected to a protective plate, and the lower end is connected to a mounting base plate, and electromagnetic components are arranged on the protective plate and the mounting base plate, and when the electromagnetic components are energized, the two electromagnetic components are in a repelling state;

[0007] A one-way valve is arranged inside the hydraulic column, and a sensor is arranged outside the hydraulic column. The sensor is used to monitor the position of the one-way valve. The horizontal height of the sensor is lower than the horizontal height of the one-way valve. Hydraulic oil is arranged inside the hydraulic column. When the driving end of the hydraulic column moves inward, the hydraulic oil can drive the one-way valve to move downward.

[0008] The sensor is connected to a controller, and the controller is connected to an electromagnetic component.

[0009] The further improvement of the utility model is:

[0010] The one-way valve comprises a screw rod, the screw rod passes through a support plate, the screw rod can move axially along the support plate, the support plate is fixed inside the hydraulic column, a preload spring assembly is arranged on the screw rod, and the preload spring assembly is located at the upper end of the support plate;

[0011] A valve bottom plate is arranged at the lower end of the screw rod. When the driving end of the hydraulic column moves inward, the hydraulic oil drives the valve bottom plate to move downward, and at this time, the preload spring assembly starts to be squeezed and deformed.

[0012] The preload spring assembly comprises a preload spring and a nut;

[0013] The nut is arranged on the upper end of the preload spring.

[0014] The support plates are symmetrically spaced, each support plate is penetrated by a screw, and the valve bottom plate is connected to the lower ends of the two screws at the same time;

[0015] The upper end of the valve bottom plate is sealed and connected to the gap between the two support plates.

[0016] A protrusion is arranged at the upper end of the valve bottom plate, and the protrusion can extend into the gap between the two support plates.

[0017] The electromagnetic assembly comprises a support frame, on which an electromagnetic coil is arranged.

[0018] The electromagnetic coil is wound on the supporting frame.

[0019] The two hydraulic columns are symmetrically arranged in transverse direction, and the electromagnetic component is arranged between the two hydraulic columns.

[0020] The one-way valve is installed inside any hydraulic column.

[0021] A highway maintenance vehicle comprises the anti-collision device described in the utility model.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model discloses an anti-collision device for highway maintenance vehicles. When the guard plate is hit by an external impact, the hydraulic column first realizes primary shock absorption, and the hydraulic column absorbs and buffers the impact force through its own compression. When the impact force is too large, the pressure on the driving end of the hydraulic column increases, and the pressure inside the hydraulic column increases. The hydraulic oil inside moves downward rapidly under the drive of the pressure, and the one-way valve moves downward rapidly under the drive of the hydraulic oil. When the internal pressure is too large, the position of the one-way valve moving downward will increase. When the one-way valve moves downward to a position corresponding to the sensor, the sensor The collected signal is sent to the controller, and the controller is started. At this time, the electromagnetic components are energized. Since the two electromagnetic components are in a repulsive state after being energized, the upward driving force on the protective plate drives the driving end of the hydraulic column to move upward, thereby partially offsetting the impact force. The greater the impact force on the vehicle, the closer the distance between the two electromagnetic components, and the stronger the repulsive force generated between them, reducing the impact force generated by the vehicle collision. This device can resist external impact force, can adapt to stronger impact force, avoid the phenomenon of device scrapping under greater impact force, and is safer in use.

[0024] Furthermore, in the utility model, the upper end of the valve bottom plate is sealed and connected to the gap between the two support plates, ensuring that the hydraulic oil is always located at the upper end of the valve bottom plate.

[0025] Furthermore, in the utility model, the protrusion can extend into the gap between the two support plates, thereby improving the sealing effect of the hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is the overall structure diagram of the utility model;

[0028] Figure 2 This is a structural diagram of a one-way valve of the utility model.

[0029] Among them: 1-protective plate; 2-hydraulic column; 3-one-way valve; 4-sensor; 5-support frame; 6-electromagnetic coil; 7-mounting base plate; 8-nut; 9-preload spring; 10-screw; 11-valve base plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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 part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the 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.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The utility model is further described in detail below with reference to the accompanying drawings:

[0037] See also Figure 1 The embodiment of the utility model discloses an anti-collision device for a highway maintenance vehicle. The device forms a two-stage anti-collision buffer structure, which can better offset and buffer the impact force.

[0038] Specific:

[0039] The present embodiment discloses an anti-collision device for a highway maintenance vehicle, comprising a hydraulic column 2, wherein the upper end of the hydraulic column 2 is connected to a protective plate 1, and the lower end is connected to a mounting base plate 7, and electromagnetic components are arranged on the protective plate 1 and the mounting base plate 7, and when the electromagnetic components are energized, the two electromagnetic components are in a repulsive state; a one-way valve 3 is arranged inside the hydraulic column 2, and a sensor 4 is arranged outside the hydraulic column 2, and the sensor 4 is used to monitor the position of the one-way valve 3, and the horizontal height of the sensor 4 is lower than the horizontal height of the one-way valve 3; hydraulic oil is arranged inside the hydraulic column 2, and when the driving end of the hydraulic column 2 moves inward, the hydraulic oil can drive the one-way valve 3 to move downward; the sensor 4 is connected to a controller, and the controller is connected to the electromagnetic component.

[0040] Furthermore, in the present embodiment, the hydraulic column 2 constitutes a primary anti-collision buffer structure; the one-way valve 3, the electromagnetic assembly and the sensor 4 constitute a secondary anti-collision buffer structure.

[0041] Specifically, the specific structure of the one-way valve 3 is:

[0042] A support plate is provided inside the hydraulic column 2. Specifically, two support plates are provided. The two support plates are symmetrically spaced apart, and a gap is formed between the two support plates. A screw 10 passes through each support plate. A preload spring 9 is sleeved on the screw 10. A nut 8 is provided on the upper end of the preload spring 9. The lower end of the preload spring 9 abuts against the upper end of the support plate. The nut 8 and the support plate cooperate to axially limit the preload spring 9. The lower end of the screw 10 is connected to the valve bottom plate 11. The valve bottom plate 11 is located at the lower end of the support plate. When the valve bottom plate 11 is pushed downward, the valve bottom plate 11 can drive the screw 10 to move downward.

[0043] Furthermore, a protrusion is provided at the upper end of the valve base plate 11, and the protrusion can extend into the gap between the two support plates. Hydraulic oil is filled in the interior of the hydraulic column 2, and the hydraulic oil is located above the protrusion. When the driving end of the hydraulic column 2 begins to move inward under external pressure, the driving end squeezes the hydraulic oil, and the hydraulic oil begins to apply pressure to the protrusion under the drive of the pressure. The protrusion moves downward under the drive of the pressure and drives the screw 10 to move. When the screw 10 moves, the pre-load spring 9 begins to compress and deform due to the axial limitation of the nut 8 and the support plate on the pre-load spring 9. If the pressure exceeds the warning value of the pre-load spring 9, the downward position of the valve base plate 11 reaches the relative position of the sensor 4, and the signal recognized by the sensor 4 is sent to the controller, and the controller starts to start the electromagnetic component to complete the subsequent work.

[0044] In this embodiment, the preload spring 9 can be replaced according to actual needs, and the preload force of the preload spring 9 can be adjusted.

[0045] In this embodiment, when the valve bottom plate 11 moves to a position horizontally opposite to the sensor 4, the sensor 4 will detect an object in front and send out a signal.

[0046] In this embodiment, the sensitivity of the one-way valve inside the hydraulic column is controlled by a preload spring, and the valve opening preset value can be set manually.

[0047] Furthermore, in this embodiment, the structure of the electromagnetic component is:

[0048] The electromagnetic assembly includes a support frame 5, which is fixedly connected to the protective plate 1 or the mounting base plate 7. The two support frames 5 are symmetrically arranged up and down, and an electromagnetic coil 6 is wound around each support frame 5. The two electromagnetic coils 6 are connected to a power supply battery. When the vehicle is hit, the electromagnetic coils 6 are energized, and the two electromagnetic coils 6 repel each other to provide repulsive force. When the sensor 4 detects that the valve base plate 11 has moved to a position corresponding to the device, the sensor 4 sends a signal to the controller, the controller turns on the power supply battery, and the power supply battery supplies power to the electromagnetic coil 6.

[0049] Furthermore, in this embodiment, the closer the distance between the electromagnetic coils is, the stronger the repulsive force between the magnetic fields is, and the better the anti-collision performance is, thereby achieving protection for highway maintenance vehicles.

[0050] Furthermore, in the present embodiment, two hydraulic columns 2 are arranged symmetrically in the transverse direction, wherein the one-way valve 3 is installed inside any one of the hydraulic columns 2 .

[0051] Furthermore, the working principle of this embodiment is as follows:

[0052] The anti-collision device is fixed on the highway maintenance vehicle. When the highway maintenance vehicle is hit, the impact object first contacts the guard plate 1. As the impact force is transmitted, the hydraulic column 2 is compressed. At this time, the first-level anti-collision buffer structure starts to start:

[0053] After the hydraulic column 2 is compressed, it first plays a role in shock absorption and collision prevention. If the impact force does not reach the preset threshold of the preload spring 9 in the one-way valve 3, the valve bottom plate 11 will not move to the position relative to the sensor 4, that is, (the horizontal height of the valve bottom plate 11 is above the sensor 4 at this time), and the electromagnetic coil 6 will not be activated. At this time, the impact force is small, and the electromagnetic coil 6 does not need to work, and the secondary electromagnetic anti-collision structure does not work;

[0054] If the impact force is greater than the preset threshold of the preload spring 9 in the one-way valve 3, the valve bottom plate 11 moves downward more. When the valve bottom plate 11 moves to a position corresponding to the level of the sensor 4, the sensor 4 senses the valve bottom plate 11 and sends a signal to the vehicle's controller. The controller starts to supply power to the battery. The battery supplies power to the electromagnetic coil 6 through the connecting line. The electromagnetic coil 6 is energized to quickly generate a magnetic field. The two electromagnetic coils 6 are wound in the same direction and generate magnetic fields in the same direction. The same magnetic fields repel each other and generate repulsive force. At this time, the secondary electromagnetic anti-collision and shock absorption structure takes effect to offset the impact force on the vehicle and achieve the purpose of shock absorption and anti-collision. When the impact force is too large, the distance between the support frame 5 and the electromagnetic coil 6 becomes closer and closer. At this time, the repulsive force between the magnetic fields becomes stronger as the distance becomes closer, and the effect of offsetting the impact force becomes better, which effectively reduces the damage and casualties of highway maintenance vehicles. The electromagnetic coil 6 can be recycled and reused to reduce the cost of the electromagnetic anti-collision device.

[0055] When a vehicle is impacted, the hydraulic column and the electromagnetic coil can simultaneously and rapidly provide a buffering and shock absorbing effect. The hydraulic column of the first-level anti-collision buffer structure firstly plays a buffering and shock absorbing role. The hydraulic column is under pressure. If the impact force received by the vehicle does not reach a threshold value, the second-level electromagnetic anti-collision buffer structure does not work. If the impact force received by the vehicle exceeds the threshold value, the one-way valve inside the left hydraulic column opens, and the sensor senses that the one-way valve is opened. The vehicle supplies power to the electromagnetic coil through a connecting line, and the electromagnetic coil starts to form a magnetic field. Due to the repulsion of the magnetic field, a repulsive force opposite to the impact force of the vehicle is provided, thereby greatly reducing the impact force generated by the vehicle collision and reducing the loss caused by the vehicle collision.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-collision device for a highway maintenance vehicle, characterized in that: It comprises a hydraulic column (2), the upper end of the hydraulic column (2) is connected to a protective plate (1), and the lower end is connected to a mounting base plate (7), and electromagnetic components are arranged on the protective plate (1) and the mounting base plate (7), and when the electromagnetic components are energized, the two electromagnetic components are in a repelling state; A one-way valve (3) is arranged inside the hydraulic column (2), and a sensor (4) is arranged outside the hydraulic column (2). The sensor (4) is used to monitor the position of the one-way valve (3). The horizontal height of the sensor (4) is lower than the horizontal height of the one-way valve (3). Hydraulic oil is arranged inside the hydraulic column (2). When the driving end of the hydraulic column (2) moves inward, the hydraulic oil can drive the one-way valve (3) to move downward. The sensor (4) is connected to a controller, and the controller is connected to an electromagnetic component.

2. The anti-collision device for a highway maintenance vehicle according to claim 1, characterized in that: The one-way valve (3) comprises a screw rod (10), the screw rod (10) passes through a support plate, the screw rod (10) is able to move axially along the support plate, the support plate is fixed inside the hydraulic column (2), a preload spring assembly is arranged on the screw rod (10), and the preload spring assembly is located at the upper end of the support plate; A valve bottom plate (11) is provided at the lower end of the screw rod (10). When the driving end of the hydraulic column (2) moves inward, the hydraulic oil drives the valve bottom plate (11) to move downward, and at this time the preload spring assembly begins to be squeezed and deformed.

3. The anti-collision device for a highway maintenance vehicle according to claim 2, characterized in that: The preload spring assembly comprises a preload spring (9) and a nut (8); The nut (8) is arranged on the upper end of the preload spring (9).

4. The anti-collision device for a highway maintenance vehicle according to claim 2, characterized in that: The support plates are symmetrically spaced, a screw rod (10) passes through each support plate, and the valve bottom plate (11) is connected to the lower ends of the two screw rods (10) at the same time; The upper end of the valve bottom plate (11) is sealed and connected to the gap between the two support plates.

5. The anti-collision device for a highway maintenance vehicle according to claim 4, characterized in that: A protrusion is arranged at the upper end of the valve bottom plate (11), and the protrusion can extend into the gap between the two support plates.

6. The anti-collision device for a highway maintenance vehicle according to claim 1, characterized in that: The electromagnetic assembly comprises a support frame (5), and an electromagnetic coil (6) is arranged on the support frame (5).

7. The anti-collision device for a highway maintenance vehicle according to claim 6, characterized in that: The electromagnetic coil (6) is wound on the support frame (5).

8. The anti-collision device for a highway maintenance vehicle according to claim 1, characterized in that: Two hydraulic columns (2) are arranged symmetrically in the transverse direction, and the electromagnetic component is arranged between the two hydraulic columns (2).

9. The anti-collision device for a highway maintenance vehicle according to claim 7, characterized in that: The one-way valve (3) is installed inside any hydraulic column (2).

10. A highway maintenance vehicle, characterized in that: The anti-collision device comprises the anti-collision device according to any one of claims 1 to 9.

Images