Vehicle tail gas detection device for expressway

Abstract

The utility model relates to the technical field of tail gas detection, and discloses a vehicle tail gas detection device for an expressway, which comprises a stand column, a positioning cross beam, a tail gas detection host and two clamping structures, the positioning cross beam is vertically and fixedly connected with the stand column, and the positioning cross beam is used for being in positioning fit with an outer side groove of a wave-shaped guardrail; the two clamping structures are fixed to the stand column, one clamping structure is arranged on the upper side of the positioning cross beam in a spaced mode, the other clamping structure is arranged on the lower side of the positioning cross beam in a spaced mode, and the two clamping structures are used for being tightly matched with the upper side face and the lower side face of the wave-shaped guardrail respectively; a photographing device is further installed on the upper portion of the stand column, the photographing direction of the photographing device inclines towards one side of the driving direction, and the tail gas detection host is arranged on the lower portion of the stand column and located on the lower side of the positioning cross beam so that the wave-shaped guardrail and the tail gas detection host can be staggered up and down. Interference of the wave-shaped guardrail on exhaust detection is avoided, and the purpose of integrating the tail gas detection host and the photographing equipment on the stand column is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas detection, in particular to a vehicle tail gas detection device for highways. Background Art

[0002] At present, with the rapid growth of the domestic automobile ownership, a large amount of waste gas emitted by motor vehicles during driving will cause air environmental pollution. In particular, old and diesel vehicles are prone to problems such as burning engine oil or emitting thick black smoke.

[0003] For example, the Chinese utility model patent with the authorization publication number CN218543857U and the authorization publication date of February 28, 2023 discloses a motor vehicle exhaust remote sensing detection device, including: a support frame, a detection device body, a support column and a connecting wheel. The support frame is installed on the ground; the detection device body is installed above the support frame; a height adjustment mechanism is arranged on the outer side of the support column, which includes an adjustment wheel, a positioning groove, a positioning rod and a magnetic block; the connecting wheel is fixed below the detection device body, and an angle adjustment mechanism is arranged below the connecting wheel, which includes a limiting wheel, a limiting block and an adjustment rod. The support frame is installed at a suitable position, and the support column is lifted and lowered by the adjustment wheel, which is convenient for adjusting the height of the device and can be applicable to different vehicles or the ground.

[0004] Existing motor vehicle exhaust remote sensing detection devices are usually placed outside the road, and corrugated guardrails (with a height of 0.8 - 1.2 meters) are fixed on the roadside of highways. The corrugated guardrails will interfere with the exhaust detection and affect the normal operation of the exhaust remote sensing detection. In addition, a gantry camera system needs to be equipped in front of the road, and the structure of the entire detection system is complex. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that the corrugated guardrails on highways will interfere with the exhaust detection and affect the normal operation of the exhaust remote sensing detection. Moreover, a gantry camera system needs to be equipped in front of the road, and the structure of the entire detection system is complex.

[0006] To solve the above technical problems, the utility model provides a technical solution for a vehicle tail gas detection device for highways:

[0007] The vehicle tail gas detection device for highways includes a column, a positioning cross beam, a tail gas detection host and two clamping structures. The positioning cross beam is vertically and fixedly connected to the column, and the positioning cross beam is used for positioning and cooperating with the outer groove of the corrugated guardrail;

[0008] Both of the clamping structures are fixed on the column. One clamping structure is arranged at intervals on the upper side of the positioning crossbeam, and the other clamping structure is arranged at intervals on the lower side of the positioning crossbeam. The two clamping structures are respectively used for tightly fitting with the upper side and the lower side of the corrugated guardrail.

[0009] A photographing device is also installed on the upper part of the column. The photographing direction of the photographing device is arranged obliquely towards the driving direction side. The photographing device is electrically connected to the exhaust gas detection main unit. The exhaust gas detection main unit is arranged at the lower part of the column, and the exhaust gas detection main unit is located under the positioning crossbeam so that the corrugated guardrail and the exhaust gas detection main unit are staggered up and down.

[0010] Further, the positioning crossbeam is of a V-groove structure. The opening direction of the positioning crossbeam is arranged towards the column, and the opening angle of the positioning crossbeam matches the outer groove of the corrugated guardrail.

[0011] Further, the clamping structure includes a fixing plate, a fastening member and a pressing block. The fixing plate is fixedly connected to the column. The fastening member is adjustably installed on the fixing plate. The pressing block is arranged at the end of the fastening member corresponding to the positioning crossbeam. The pressing block has a pressing surface for cooperating with the upper side or the lower side of the corrugated guardrail.

[0012] Further, internal threaded holes are arranged on the fixing plate. The fastening member is a fastening bolt. The fastening bolt cooperates with the internal threaded holes. The pressing block is rotatably installed at the end of the fastening member corresponding to the positioning crossbeam.

[0013] Further, the pressing block is a trapezoidal pressing block, and the inclined surface of the pressing block constitutes the pressing surface for cooperating with the upper side or the lower side of the corrugated guardrail.

[0014] Further, a rubber cushion layer is also arranged on the pressing surface of the pressing block. The rubber cushion layer has a convex ribbed surface.

[0015] Further, a reinforcing rib plate is also connected between the column and the two fixing plates.

[0016] Further, the column is a channel steel column. A bottom support is fixedly installed at the lower part of the column. The exhaust gas detection main unit is installed under the bottom support.

[0017] Further, an NOx sensor, an opacity detection element and a speed sensor are arranged inside the exhaust gas detection main unit. The sensing directions of the NOx sensor, the opacity detection element and the speed sensor are all arranged parallel to the width direction of the road.

[0018] Furthermore, a storage device is also provided inside the exhaust gas detection main unit, and the NOx sensor, the opacity detection element, the speed sensor, and the photographing device are electrically connected to the storage device respectively.

[0019] Compared with the prior art, a vehicle exhaust gas detection device for highways of the present utility model has the following beneficial effects: The vehicle exhaust gas detection device for highways adopts the design form of a column, a positioning cross beam, an exhaust gas detection main unit, two clamping structures, and a photographing device. Among them, the positioning cross beam is vertically and fixedly connected to the column, and the two clamping structures are both fixed on the column, and the two clamping structures are respectively arranged at intervals on the upper side and the lower side of the positioning cross beam. During installation, the positioning cross beam forms a positioning fit with the outer groove of the corrugated guardrail, and the two clamping structures are respectively tightly fitted with the upper side and the lower side of the corrugated guardrail. Under the combined action of the positioning cross beam and the two clamping structures, the column is reliably fixed and installed on the outside of the corrugated guardrail, ensuring the stability of the assembly position and the vertical extension of the column without protrusions inside the corrugated guardrail.

[0020] Moreover, a photographing device is installed on the upper part of the column, and the photographing direction of the photographing device is arranged obliquely towards the driving direction side. The exhaust gas detection main unit is arranged at the lower part of the column. The photographing device on the upper part of the column can photograph the vehicles driving on the highway, and the exhaust gas detection main unit at the lower part of the column can detect the exhaust gas of the vehicles. Since the exhaust gas detection main unit is located below the positioning cross beam, the corrugated guardrail and the exhaust gas detection main unit are staggered up and down, avoiding the interference of the corrugated guardrail on the exhaust gas detection and ensuring the normal operation of the exhaust gas remote sensing detection. There is no need to additionally support a gantry photographing system, achieving the purpose of integrating the exhaust gas detection main unit and the photographing device on one column and simplifying the structural complexity of the entire detection system. Description of the Drawings

[0021] Figure 1 is a side view schematic diagram of the vehicle exhaust gas detection device for highways in an embodiment of the present utility model;

[0022] Figure 2 is a rear view schematic diagram of the vehicle exhaust gas detection device for highways in an embodiment of the present utility model;

[0023] Figure 3 is a partial three-dimensional schematic diagram of the vehicle exhaust gas detection device for highways in an embodiment of the present utility model;

[0024] In the figure: 1 - column, 2 - exhaust gas detection main unit, 20 - bottom support, 21 - NOx sensor, 22 - opacity detection element, 23 - speed sensor, 3 - positioning cross beam, 4 - clamping structure, 41 - fixing plate, 42 - fastener, 43 - pressing block, 44 - rubber cushion layer, 45 - reinforcing rib plate, 5 - corrugated guardrail, 6 - photographing device. Detailed implementation manners

[0025] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. in the present utility model is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] As Figures 1 to 3 shown, a vehicle exhaust gas detection device for highways according to an embodiment of the present utility model includes a column 1, a positioning cross beam 3, an exhaust gas detection main unit 2, and two clamping structures 4. The positioning cross beam 3 is perpendicularly and fixedly connected to the column 1, and the positioning cross beam 3 is used for positioning and mating with the outer groove of the corrugated guardrail 5; both of the two clamping structures 4 are fixed on the column 1. One clamping structure 4 is arranged at intervals on the upper side of the positioning cross beam 3, and the other clamping structure 4 is arranged at intervals on the lower side of the positioning cross beam 3. The two clamping structures 4 are respectively used for tightly mating with the upper side and the lower side of the corrugated guardrail 5.

[0030] The upper part of the vertical column 1 is also equipped with a photographing device 6. The photographing direction of the photographing device 6 is arranged obliquely towards the driving direction side. The photographing device 6 is electrically connected to the exhaust gas detection main unit 2. The exhaust gas detection main unit 2 is arranged at the lower part of the vertical column 1, and the exhaust gas detection main unit 2 is located below the positioning cross beam 3, so that the corrugated guardrail 5 and the exhaust gas detection main unit 2 are staggered up and down.

[0031] The vehicle exhaust gas detection device for highways adopts the design form of the vertical column 1, the positioning cross beam 3, the exhaust gas detection main unit 2, two clamping structures 4 and the photographing device 6. Among them, the positioning cross beam 3 is vertically and fixedly connected to the vertical column 1. The two clamping structures 4 are both fixed on the vertical column 1, and the two clamping structures 4 are respectively arranged at intervals on the upper side and the lower side of the positioning cross beam 3. During installation, the positioning cooperation is formed by using the outer groove of the positioning cross beam 3 and the corrugated guardrail 5. The upper side and the lower side of the corrugated guardrail 5 are tightly fitted through the two clamping structures 4 respectively. Under the combined action of the positioning cross beam 3 and the two clamping structures 4, the vertical column 1 is reliably fixed and installed on the outer side of the corrugated guardrail 5. Without protrusions inside the corrugated guardrail 5, the stability of the assembly position and the vertical extension of the vertical column 1 is ensured.

[0032] Moreover, the upper part of the vertical column 1 is also equipped with a photographing device 6. The photographing direction of the photographing device 6 is arranged obliquely towards the driving direction side. The exhaust gas detection main unit 2 is arranged at the lower part of the vertical column 1. The photographing device 6 at the upper part of the vertical column 1 can photograph the tails of the vehicles driving on the highway, and the exhaust gas detection main unit 2 at the lower part of the vertical column 1 can detect the exhaust gas of the vehicles. Since the exhaust gas detection main unit 2 is located below the positioning cross beam 3, the corrugated guardrail 5 and the exhaust gas detection main unit 2 are staggered up and down, avoiding the interference of the corrugated guardrail 5 on the exhaust gas detection and ensuring the normal operation of the exhaust remote sensing detection. There is no need to additionally support a gantry photographing system, achieving the purpose of integrating the exhaust gas detection main unit 2 and the photographing device 6 on one vertical column 1, and simplifying the structural complexity of the entire detection system.

[0033] In this embodiment, the positioning cross beam 3 is a V-shaped groove structure. The opening direction of the positioning cross beam 3 faces the vertical column 1, and the opening angle of the positioning cross beam 3 matches the outer groove of the corrugated guardrail 5. The positioning cross beam 3 with a V-shaped groove structure can form an accurate fit with the outer groove of the corrugated guardrail 5, ensuring the position reliability of the vertical column 1 relative to the corrugated guardrail 5.

[0034] Specifically, the two clamping structures 4 are the same. The clamping structure 4 includes a fixing plate 41, a fastener 42 and a pressing block 43. The fixing plate 41 is fixedly connected to the column 1. The fastener 42 is adjustably installed on the fixing plate 41. The pressing block 43 is arranged at the end of the fastener 42 corresponding to the positioning cross beam 3. The pressing block 43 has a pressing surface for cooperating with the upper side or the lower side of the corrugated guardrail 5. As a further preferred solution, the fixing plate 41 is provided with an internal threaded hole. The fastener 42 is a fastening bolt, and the fastening bolt cooperates with the internal threaded hole. The pressing block 43 is rotatably installed at the end of the fastener 42 corresponding to the positioning cross beam 3.

[0035] It should be noted that the vertical distance between the two clamping structures 4 is greater than the vertical width of the corrugated guardrail 5. By rotating the fastener 42 to drive the pressing block 43 to move towards the positioning cross beam 3, the fastening effect is generated between the pressing block 43 and the upper side and the lower side of the corrugated guardrail 5, so that the two clamping structures 4 are effectively clamped on the upper and lower sides of the corrugated guardrail 5, which is more suitable for the installation conditions of highways.

[0036] In this embodiment, the pressing block 43 is a trapezoidal pressing block, and the inclined surface of the pressing block 43 constitutes a pressing surface for cooperating with the upper side or the lower side of the corrugated guardrail 5. Specifically, the pressing surface of the pressing block 43 is further provided with a rubber cushion layer 44. The rubber cushion layer 44 has a convex ribbed surface, and the convex ribbed surface can increase the friction force and the fastening reliability. The inclined angles of the inclined surfaces of the two pressing blocks 43 are the same as those of the upper side and the lower side of the corrugated guardrail 5 respectively. The pressing block 43 can generate relative vertical component forces and outward horizontal component forces. The outward horizontal component force and the positioning cross beam 3 together play a role of clamping and fixing inside and outside.

[0037] In addition, a reinforcing rib plate 45 is also connected between the column 1 and the two fixing plates 41. The column 1 is a channel steel column, and a bottom support 20 is fixedly installed at the lower part of the column 1. The exhaust gas detection main machine 2 is installed on the lower side of the bottom support 20. Using the channel steel column ensures the structural stiffness of the column 1. Designing the reinforcing rib plate 45 can improve the connection firmness between the column 1 and the two fixing plates 41.

[0038] In addition, an NOx sensor 21, an opacity detection element 22 and a speed sensor 23 are arranged inside the exhaust gas detection main machine 2. The sensing directions of the NOx sensor 21, the opacity detection element 22 and the speed sensor 23 are all arranged in parallel along the width direction of the road. A storage device (not shown in the figure) is also provided inside the exhaust gas detection main machine 2. The NOx sensor 21, the opacity detection element 22, the speed sensor 23 and the photographing device 6 are respectively electrically connected to the storage device.

[0039] Specifically, the NOx sensor 21 is an ultraviolet differential gas optical module for detecting the content of nitrogen oxides in vehicle exhaust gas. The opacity detection element 22 is a green laser transceiver module for detecting the black smoke concentration in vehicle exhaust gas. The exhaust gas data detected by the exhaust gas detection host 2 and the images captured by the photographing device 6 are both stored in the storage device, and the detection data is uploaded to the exhaust gas monitoring server through wireless communication.

[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle exhaust gas detection device for highways, characterized in that: It includes a column, a positioning beam, an exhaust gas detection host and two clamping structures. The positioning beam is vertically fixedly connected to the column, and the positioning beam is used to position and cooperate with the outer groove of the corrugated guardrail; The two clamping structures are both fixed on the upright column, one of the clamping structures is arranged at intervals on the upper side of the positioning beam, and the other of the clamping structures is arranged at intervals on the lower side of the positioning beam, and the two clamping structures are respectively used to fasten with the upper side and the lower side of the corrugated guardrail; A photographing device is also installed on the upper part of the column. The photographing direction of the photographing device is inclined toward the driving direction. The photographing device is electrically connected to the exhaust gas detection host. The exhaust gas detection host is arranged at the lower part of the column, and the exhaust gas detection host is located on the lower side of the positioning beam so that the corrugated guardrail and the exhaust gas detection host are staggered up and down.

2. The vehicle exhaust gas detection device for highway according to claim 1, characterized in that: The positioning beam is a V-shaped groove structure, the opening direction of the positioning beam is arranged toward the column, and the opening angle of the positioning beam matches the outer groove of the corrugated guardrail.

3. The vehicle exhaust gas detection device for highway according to claim 1, characterized in that: The clamping structure includes a fixing plate, a fastener and a pressing block. The fixing plate is fixedly connected to the column. The fastener is adjustably installed on the fixing plate. The pressing block is arranged at the end of the fastener corresponding to the positioning beam. The pressing block has a clamping surface for cooperating with the upper side or lower side of the corrugated guardrail.

4. The vehicle exhaust gas detection device for highways according to claim 3, characterized in that: The fixing plate is provided with an internal threaded hole, the fastener is a fastening bolt, the fastening bolt matches the internal threaded hole, and the pressing block is rotatably mounted on the end of the fastener corresponding to the positioning beam.

5. The vehicle exhaust gas detection device for highway according to claim 3, characterized in that: The pressing block is a trapezoidal pressing block, and the inclined surface of the pressing block constitutes the pressing surface for matching with the upper side surface or the lower side surface of the corrugated guardrail.

6. The vehicle exhaust gas detection device for highways according to claim 5, characterized in that: The pressing surface of the pressing block is also provided with a rubber cushion layer, and the rubber cushion layer has a convex ridge surface.

7. The vehicle exhaust gas detection device for highways according to claim 3, characterized in that: A reinforcing rib is also connected between the column and the two fixing plates.

8. The vehicle exhaust gas detection device for highway according to claim 1, characterized in that: The column is a channel steel column, a bottom support is fixedly installed at the lower part of the column, and the exhaust gas detection host is installed on the lower side of the bottom support.

9. The vehicle exhaust gas detection device for highway according to claim 1, characterized in that: The exhaust gas detection host is provided with a NOx sensor, an opacity detection element and a speed sensor inside, and the sensing directions of the NOx sensor, the opacity detection element and the speed sensor are arranged in parallel along the width direction of the road.

10. The vehicle exhaust gas detection device for highways according to claim 9, characterized in that: A storage device is also provided inside the exhaust gas detection host, and the NOx sensor, the opacity detection element, the speed sensor, and the camera are electrically connected to the storage device respectively.

Images