Truck head avoiding device of truck green channel rapid detection system

Abstract

The utility model relates to the technical field of truck green channel fast detection systems, and provides a truck head avoiding device of a truck green channel fast detection system, which comprises an inspection channel provided with an inspection system for inspecting vehicles and a truck head avoiding component for controlling whether the inspection system is started or not. The vehicle head avoiding assembly is provided with a plurality of transmitting points and a plurality of receiving points, the transmitting points and the receiving points are arranged in a one-to-one correspondence and flush mode, and the inspection channel is provided with a cleaning mechanism used for cleaning the vehicle head avoiding assembly. The cleaning mechanism comprises a pressure trigger plate used for allowing a vehicle to pass through, a plurality of linkage lifting strips, a plurality of cleaning brush strips used for wiping all the transmitting points or all the receiving points and a plurality of reset pieces, all the cleaning brush strips are fixedly connected to all the linkage lifting strips in a one-to-one correspondence mode, the cleaning brush strips and the transmitting points are arranged at intervals, and all the linkage lifting strips are in linkage with the pressure trigger plate. According to the technical scheme, the problem that the starting accuracy of the X-ray inspection device is affected due to dust accumulation on the headstock avoiding assembly in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to truck green pass fast inspection system technical field, specifically, relate to a truck green pass fast inspection system's head avoidance device. BACKGROUND

[0002] Green channel, also known as high-speed green pass, namely fresh agricultural products highway transportation "green channel", refers to the vehicle transporting fresh vegetables, fruits, aquatic products, meat, egg, milk and other fresh agricultural products, under certain conditions, can enjoy the preferential policy of exempting from highway toll.This policy aims to reduce the logistics cost of fresh agricultural products, promote agricultural development, and guarantee the supply of urban market.

[0003] Currently, in order to improve the green pass inspection efficiency, X-ray inspection device such as Co-60 radiation type green pass vehicle inspection system is usually set at the road entrance to inspect the passing vehicles.And, most green channels are equipped with head avoidance detection device to detect the position of truck head, and then start X-ray inspection device to inspect the truck compartment part, so as to avoid X-ray irradiation to human body and ensure the health of the driver.

[0004] But because the inspection device and the head avoidance detection device are in the open outdoor environment, and there are vehicles passing around all the time, there are particulate matters such as dust discharged with automobile exhaust, dust floating in the air due to vehicle driving in the air around the device, and the head avoidance detection device itself is a live equipment, which is easy to produce electrostatic adsorption to these dust, causing dust accumulation on the head avoidance detection device, especially on the transmitter and receiver of the head avoidance detection device, which is the most serious area of dust accumulation, leading to the mis-triggering of X-ray inspection device. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of truck green pass fast inspection system's head avoidance device, solve the problem of dust accumulation on the head avoidance device in related art, which affects the accuracy of X-ray inspection device start.

[0006] The technical scheme of the utility model is as follows:

[0007] The truck head avoidance device of a truck green pass fast inspection system comprises an inspection channel, the inspection channel has an inspection system for inspecting vehicles and a head avoidance assembly for controlling whether the inspection system is started, the head avoidance assembly has a plurality of emission points and a plurality of receiving points, each of the emission points is arranged in parallel with each of the receiving points, the inspection channel is provided with a cleaning mechanism for cleaning the head avoidance assembly; the cleaning mechanism comprises a pressure trigger plate for the vehicle to press through, a plurality of linkage lifting strips, a plurality of cleaning brush strips for wiping each of the emission points or each of the receiving points, and a plurality of reset members for resetting the pressure trigger plate, each of the cleaning brush strips is fixedly connected to each of the linkage lifting strips and is arranged at intervals from the emission points, and each of the linkage lifting strips is linked with the pressure trigger plate.

[0008] Further, a plurality of linkage connecting rods are arranged on the pressure trigger plate, and each of the linkage lifting strips is uniformly distributed on both sides of the pressure trigger plate and is fixedly connected between adjacent linkage connecting rods.

[0009] Further, a reinforcing rib plate is arranged between each of the linkage lifting strips and the linkage connecting rod, and the reinforcing rib plate is fixedly connected to the linkage connecting rod and the linkage lifting strip.

[0010] Further, the pressure trigger plate comprises a connecting portion and a force receiving portion, the connecting portion is located between the force receiving portion and each of the reset members, and a projection plane of the force receiving portion in the light emission direction of the head avoidance assembly is in the shape of an isosceles trapezoid.

[0011] Further, the inspection channel comprises a mounting groove for mounting the cleaning mechanism, and the pressure trigger plate is slidably connected in the mounting groove.

[0012] Further, a plurality of limiting bars for limiting the downward displacement distance of the pressure trigger plate are arranged in the mounting groove, each of the reset members is located between adjacent limiting bars and is arranged in a linear direction.

[0013] Further, the projection plane of each of the limiting bars in the light emission direction of the head avoidance assembly is in the shape of an arch.

[0014] Further, the inspection channel further comprises two channel seats, and the distance between adjacent channel seats is less than the distance between adjacent linkage connecting rods in the light emission direction of the head avoidance assembly.

[0015] Further, a transition strip is arranged in the mounting groove, the projection plane of the transition strip in the light emission direction of the head avoidance assembly is in the shape of an inverted right triangle, and the transition strip and the force receiving portion are in close contact with each other.

[0016] Further, the transition strips are provided with several, each of which is uniformly distributed in the vehicle driving direction with the pressure trigger plate as the center.

[0017] The working principle and beneficial effects of the utility model are as follows:

[0018] The cleaning mechanism in the inspection channel is used for linkage with the driving vehicle, and plays a role in cleaning the emission point and the receiving point in the vehicle head avoidance assembly.

[0019] Specifically, the cleaning mechanism mainly comprises a pressure trigger plate, a plurality of linkage lifting strips, a plurality of cleaning brush bodies and a plurality of reset members.

[0020] Under the action of each reset member, each reset member is preferably a compression spring. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0022] Figure 1 It is a structural schematic view of the embodiment;

[0023] Figure 2 It is a front view of Figure 1

[0024] Figure 3 It is a partial sectional view of Figure 2

[0025] Figure 4 It is a sectional view of Figure 2

[0026] Figure 5 It is​​​Figure 4 Enlarged view of a portion of point A in the middle;

[0027] Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0028] In the picture:

[0029] 1. Inspection channel; 11. Inspection system; 12. Front avoidance assembly; 13. Mounting slot; 14. Channel seat; 121. Launching point; 122. Receiving point; 2. Cleaning mechanism; 21. Pressure trigger plate; 211. Connecting part; 212. Force-bearing part; 22. Linkage lifting bar; 23. Cleaning brush bar; 24. Reset part; 25. Linkage connecting rod; 3. Reinforcing rib; 4. Limiting support bar; 5. Transition bar. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1-2 As shown, this embodiment proposes a vehicle front avoidance device for a truck green channel rapid inspection system, which mainly includes an inspection channel 1. The inspection channel 1 has an inspection system 11 for inspecting vehicles and a vehicle front avoidance component 12 for controlling whether the inspection system 11 is activated.

[0032] The inspection system 11 mainly includes an X-ray source module, a detection module, a data processing module, and an imaging module. It primarily utilizes the principle of X-ray radiation imaging. Fan-shaped rays emitted from the X-ray source penetrate the enclosed compartment and the cargo inside, and are received by the detection module array on the other side. Because the density and thickness of items in different parts vary, the degree of X-ray absorption differs, resulting in varying signal strengths from the detection modules. These signals, with varying strengths, are processed and displayed on a computer screen, forming the outline and shape of the items inside the vehicle. By viewing the processed images, the condition of the goods loaded inside the enclosed compartment can be determined.

[0033] Preferably, a 200KV X-ray machine and a 160KV X-ray machine are used as radiation sources to irradiate the passing vehicle. Then, the X-ray signal after the vehicle passes is collected by the detection module, the signal is digitized, and the data is transmitted to the graphics workstation computer system via high-speed gigabit Ethernet. The system software then synthesizes the sensor data into a grayscale image linear array, and scans the vehicle line by line as it moves, finally forming two consecutive cross-sectional scan images of the whole vehicle.

[0034] The head avoidance assembly 12 in the embodiment preferably uses photoelectric switches, i.e., the head avoidance assembly 12 in the embodiment has a plurality of emitting points 121, a plurality of receiving points 122, and a detection circuit, each emitting point 121 is arranged in parallel with each receiving point 122, each emitting point 121 preferably uses a semiconductor light source such as a light-emitting diode (LED), a laser diode, or an infrared emitting diode, which continuously emits a light beam; each receiving point 122 is preferably composed of a photodiode, a phototriode, or the like, which is used to receive the light beam emitted by the emitting point 121; the detection circuit is responsible for processing the received light signal and converting it into an electrical signal output. The specific working process is as follows: when the detection circuit detects that the receiver has received light, it will convert the light beam into an electrical signal that stops the operation of the inspection system 11 and output it; when the light is blocked, the inspection system 11 will not receive the electrical signal that stops the operation, thereby starting the inspection work.

[0035] In this way, when the vehicle passes through the inspection channel 1, the vehicle body will block all or part of the light emitted by the emitting points 121, resulting in that part or all of the receiving points 122 cannot receive the electrical signal, thereby causing the inspection system 11 to start the inspection work.

[0036] Since the head avoidance assembly 12 is an electrified device, it will produce a certain electrostatic adsorption to the surrounding dust during operation. To prevent dust from accumulating on the head avoidance assembly 12, the inspection channel 1 in the embodiment is provided with a cleaning mechanism 2 for cleaning the head avoidance assembly 12.

[0037] Specifically, as shown in Figures 1-2 , Figure 5 The cleaning mechanism 2 in the embodiment mainly includes a pressure trigger plate 21 for the vehicle to pass through, a plurality of linkage lifting bars 22, a plurality of cleaning brush bars 23 for wiping each emitting point 121 or each receiving point 122, and a plurality of reset members 24 for resetting the pressure trigger plate 21, each linkage lifting bar 22 is linked with the pressure trigger plate 21, i.e., the pressure trigger plate 21 is triggered by the pressure caused by the weight of the vehicle when the vehicle passes through the inspection channel 1, so that the pressure trigger plate 21 moves downward, thereby driving the linkage lifting bar 22 to move downward, each cleaning brush bar 23 is fixedly connected to each linkage lifting bar 22 one by one, i.e., each cleaning brush bar 23 moves with the movement of the linkage lifting bar 22, thereby realizing the cleaning work of each emitting point 121 and each receiving point 122; and each cleaning brush bar 23 is arranged in a spaced manner with each emitting point 121, so that each emitting point 121 and each receiving point 122 are matched with a cleaning brush bar 23 specially used for cleaning, thereby ensuring that each emitting point 121 or each receiving point 122 can be cleaned.

[0038] Meanwhile, the adjacent cleaning brush strips 23 and linkage lifting strips 22 are spaced apart to allow light to pass through, and the spacing matches the emitting point 121 and the receiving point 122 after the pressure trigger plate 21 is lowered, so as to ensure that the emitting point 121 can normally emit light and the receiving point 122 can normally receive light, thereby ensuring normal operation of the embodiment.

[0039] Each reset member 24 is preferably a compression spring. When impacted or under load, the compression spring can absorb energy by deforming, and release the energy by elastic restoring force after the impact force disappears, so as to return the system to the initial state (resetting of the pressure trigger plate 21). This energy conversion process can effectively reduce the impact and vibration amplitude of the mechanical system, protect the equipment and improve the operation stability.

[0040] Each cleaning brush strip 23 in the embodiment is preferably made of polypropylene (PP) bristles or other hard bristles, which can prevent the bristles in the cleaning brush strip 23 from being tilted due to gravity, thereby blocking the emitting point 121 or the receiving point 122 and affecting the normal use of the embodiment.

[0041] The pressure trigger plate 21 is provided with a plurality of linkage connecting rods 25, each linkage connecting rod 25 is fixedly connected to the pressure trigger plate 21, that is, when the pressure trigger plate 21 is forced to move downward, each linkage connecting rod 25 moves downward together with the pressure trigger plate 21; each linkage lifting strip 22 is symmetrically and uniformly distributed on both sides of the pressure trigger plate 21 and is fixedly connected between adjacent linkage connecting rods 25, so that each linkage lifting strip 22 has a support force point at both ends, ensuring that each linkage lifting strip 22 can stably move up and down with the pressure trigger plate 21. The pressure trigger plate 21, the linkage lifting strips 22 and the linkage connecting rods 25 in the embodiment are preferably integrally formed by welding, so as to ensure the connection strength among them.

[0042] Each linkage lifting strip 22 and linkage connecting rod 25 is provided with a reinforcing rib plate 3, which is fixedly connected to the linkage connecting rod 25 and the linkage lifting strip 22. The reinforcing rib plate 3 has a triangular structure, which can further improve the connection strength between the linkage lifting strip 22 and the linkage connecting rod 25, so that the linkage lifting strip 22 can move up and down more stably.

[0043] Meanwhile, the inspection channel 1 also includes two channel seats 14, and the spacing between adjacent channel seats 14 is smaller than the spacing between adjacent linkage connecting rods 25 in the light emitting direction of the vehicle head avoidance assembly 12, so as to avoid shortening the width of the inspection road of the green channel by the linkage connecting rods 25, and the driver does not need to adjust the position, but can keep normal driving, thereby improving the practicality and safety of the embodiment.

[0044] As shown in FIG. 6, the vehicle head avoidance assembly 12 is provided with a plurality of light emitting points 121 and a plurality of light receiving points 122, and the light emitting points 121 and the light receiving points 122 are arranged in a staggered manner. Figures 4-5As shown, the pressure trigger plate 21 in the embodiment includes a connecting portion 211 and a force receiving portion 212, the connecting portion 211 is located between the force receiving portion 212 and each reset member 24, that is, the force receiving portion 212 serves as a contact component with the vehicle, to ensure that it can uniformly distribute stress, the projection of the force receiving portion 212 on the light emitting direction of the vehicle head avoidance assembly 12 is in the shape of an isosceles trapezoid, and due to the slope of the force receiving portion 212, it is convenient for the vehicle to drive onto the pressure trigger plate 21, effectively reducing the bumping feeling of the vehicle when passing through the green channel.

[0045] The inspection channel 1 includes a mounting groove 13 for mounting the cleaning mechanism 2, and the pressure trigger plate 21 is slidably connected in the mounting groove 13, that is, the pressure trigger plate 21 in the embodiment is directly arranged on the ground, without the need to additionally install a pressure trigger plate seat, avoiding affecting the stability of the vehicle when passing through the embodiment due to the height difference between the front and rear adjacent wheels.

[0046] As shown in Figure 4 , Figure 6 , the mounting groove 13 in the embodiment is provided with a transition strip 5, the projection of the transition strip 5 on the light emitting direction of the vehicle head avoidance assembly 12 is in the shape of an inverted right triangle, the transition strip 5 is in close contact with the force receiving portion 212, the existence of the transition strip 5 not only can reduce the bumping feeling of the vehicle when passing through the green channel (prevent the existence of a gap between the ground and the pressure trigger plate 21), but also can limit the pressure trigger plate 21, preventing the pressure trigger plate 21 from being separated from the mounting groove 13 under the resetting action of each reset member 24; that is, the transition strip 5 can effectively avoid deformation in the process of being subjected to pressure from the vehicle or being in contact with the pressure trigger plate 21 by virtue of the stable and firm characteristics of the triangle, improving the stability of the overall structure of the embodiment.

[0047] The transition strip 5 is provided with several, each transition strip 5 is symmetrically and uniformly distributed in the driving direction of the vehicle with the pressure trigger plate 21 as the center, that is, whether the vehicle is driving onto the pressure trigger plate 21 or driving off the pressure trigger plate 21, there is a transition strip 5 to ensure the smoothness of the vehicle driving.

[0048] As shown in Figures 3-4 , the mounting groove 13 in the embodiment is provided with several limiting strips 4 for limiting the downward displacement distance of the pressure trigger plate 21, to avoid the pressure trigger plate 21 from moving downward too much when subjected to pressure from the vehicle, causing the vehicle to sink into the mounting groove 13; each reset member 24 is located between adjacent limiting strips 4 and arranged in a linear direction in turn, since the reset member 24 is a spring, each reset member 24 can also serve to uniformly buffer the pressure of the pressure trigger plate 21 after being uniformly distributed, reducing the force required to be borne by each limiting strip 4.

[0049] The projection surface of each limiting support 4 in the light emitting direction of the vehicle head avoiding assembly 12 is an arc structure, so that each limiting support 4 can uniformly transmit the load along the curve to the ground, thereby ensuring the compression resistance of the limiting support 4, and ensuring that the structure of the limiting support 4 can trigger the limiting function of the pressure trigger plate 21.

[0050] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A truck head avoidance device of a truck green pass fast inspection system, comprising an inspection passage (1), the inspection passage (1) having an inspection system (11) for inspecting a vehicle, and a head avoidance assembly (12) for controlling whether the inspection system (11) is started, the head avoidance assembly (12) having a plurality of emission points (121) and a plurality of receiving points (122), each of the emission points (121) and each of the receiving points (122) being arranged flushly one by one, characterized in that, The inspection channel (1) is provided with a cleaning mechanism (2) for cleaning the vehicle head avoidance assembly (12); The cleaning mechanism (2) comprises a pressure trigger plate (21) for the vehicle to press through, a plurality of linkage lifting bars (22), a plurality of cleaning brush bars (23) for wiping each emission point (121) or each receiving point (122), a plurality of reset members (24) for resetting the pressure trigger plate (21), each cleaning brush bar (23) is fixedly connected to each linkage lifting bar (22) one by one and is arranged at intervals with the emission point (121), and each linkage lifting bar (22) is linked with the pressure trigger plate (21).

2. The truck green channel fast track system truck nose shifter of claim 1 wherein, The pressure trigger plate (21) is provided with a plurality of linkage connecting rods (25), and each linkage lifting bar (22) is uniformly distributed on both sides of the pressure trigger plate (21) with the pressure trigger plate (21) as the center and is fixedly connected between adjacent linkage connecting rods (25).

3. The truck green channel fast track system truck nose shifter of claim 2 wherein, Each linkage lifting bar (22) and linkage connecting rod (25) is provided with a reinforcing rib plate (3) fixedly connected with the linkage connecting rod (25) and the linkage lifting bar (22).

4. The truck green channel fast track system of claim 1 or 3, wherein, The pressure trigger plate (21) comprises a connecting portion (211) and a stress portion (212), the connecting portion (211) is located between the stress portion (212) and each reset member (24), and the projection plane of the stress portion (212) in the light emission direction of the vehicle head avoidance assembly (12) is an isosceles trapezoidal structure.

5. The truck green channel fast track system truck nose shifter of claim 4 wherein, The inspection channel (1) comprises a mounting groove (13) for mounting the cleaning mechanism (2), and the pressure trigger plate (21) is slidably connected in the mounting groove (13).

6. The truck green channel fast track system truck nose shifter of claim 5 wherein, The mounting groove (13) is provided with a plurality of limiting struts (4) for limiting the downward distance of the pressure trigger plate (21), each reset member (24) is located between adjacent limiting struts (4) and is arranged in a linear direction.

7. The truck green channel fast track system truck nose shifter of claim 6 wherein, Each limiting strut (4) has an arch-shaped structure in the projection plane in the light emission direction of the vehicle head avoidance assembly (12).

8. The truck green channel fast track system of claim 3, wherein, The inspection channel (1) further comprises two channel seats (14), and the distance between adjacent channel seats (14) is less than the distance between adjacent linkage connecting rods (25) in the light emission direction of the vehicle head avoidance assembly (12).

9. The truck green channel fast track system truck nose shifter of claim 5 wherein, The mounting groove (13) is provided with a transition bar (5), the projection plane of the transition bar (5) in the light emission direction of the vehicle head avoidance assembly (12) is an inverted right triangle structure, and the transition bar (5) and the stress portion (212) are mutually fitted.

10. The truck green channel fast track system of claim 9, wherein, The transition bar (5) is provided with a plurality of, each transition bar (5) is uniformly distributed in the vehicle driving direction with the pressure trigger plate (21) as the center.

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