CN210219054U

CN210219054U - Natural gas line defect detector

Info

Publication number: CN210219054U
Application number: CN201920900995.5U
Authority: CN
Inventors: Zhensheng Yan; 严振声; Baolong Yin; 尹宝龙
Original assignee: Hangzhou Juxin Technology Co Ltd
Current assignee: Hangzhou Juxin Technology Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-03-31
Anticipated expiration: 2029-06-14

Abstract

The utility model provides a pair of natural gas line defect detector, including the automobile body that has the walking ability and the detector of setting on the automobile body, the detector includes front end collector and rear end collector, still is provided with front end illuminator and rear end illuminator on the automobile body to the detector light filling, make the detector acquire more clear image, be favorable to improving the detection precision of detector. Still be provided with the sweeper on the automobile body, the sweeper is used for cleaning the impurity on the pipe wall, the corrosion can appear or be attached to there is impurity on the natural gas line pipe wall in long-term operation process, this impurity or corrosion will make the image that the detector detected unsatisfactory, relevant personnel can't obtain the actual conditions of natural gas line according to this image promptly, consequently, adopt the sweeper to clean natural gas line, can clear away corrosion or impurity on the natural gas line effectively, and then the precision of the image that the detector obtained has been improved effectively, be favorable to relevant personnel's subsequent analysis.

Description

Natural gas line defect detector

Technical Field

The utility model relates to a natural gas line detection area especially relates to a natural gas line defect detector.

Background

Natural gas is a gas that can be used, such as natural gas with combustion capabilities, and the like. With the development of natural gas exploitation technology, the application range of natural gas is wider and wider, and the conveying distance and the conveying flow rate of the natural gas are larger and larger.

In the prior art, pipelines are generally adopted to convey natural gas on a large scale, and the pipelines are generally required to have good performance when the pipelines are adopted to convey the natural gas, for example, the pipelines are not easy to leak and corrode. In order to ensure that the natural gas pipeline has good performance, the pipeline needs to be regularly detected in the laying process or the operation process, the defects of the natural gas pipeline are discovered in time, the natural gas pipeline is maintained in time, and then the stable operation of the natural gas pipeline is ensured.

When the defect detection is performed on the natural gas pipeline in the prior art, a detector is generally adopted to detect the defect of the natural gas pipeline, for example, image information in the natural gas pipeline is acquired by adopting image acquisition equipment, so that a technician can perform related analysis. However, the acquisition equipment in the prior art has unreasonable structure and low accuracy of acquired image information, and is not beneficial to subsequent analysis of technicians.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of natural gas line defect detector aims at solving the technical problem that the detector that detects natural gas line defect in the prior art detects the precision low.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a natural gas pipeline defect detector, includes the automobile body that possesses walking ability and sets up the detector on the automobile body, the detector is including the front end collector of gathering automobile body front end pipeline image and the rear end collector of gathering automobile body rear end pipeline image still be provided with on the automobile body right the front end illuminator of front end collector light filling and right the rear end illuminator of rear end collector light filling, this natural gas pipeline defect detector still include the communicator and with the mobile terminal of communicator communication, the communicator is fixed in on the automobile body, and, the front end collector, the rear end collector all with the communicator communication, the image that the front end collector, the rear end collector gathered passes through the communicator and transmits to mobile terminal, still be provided with the sweeper that cleans the natural gas pipeline wall on the automobile body, the sweeper is including being fixed in the track on the automobile body, The cleaning brush is arranged on the track and moves along the track, and the driving mechanism drives the cleaning brush to move along the track.

In an alternative arrangement, the drive mechanism includes a prime mover which outputs rotary motion, a gear ring which revolves along the track and a gear which meshes with the gear ring, the prime mover driving the gear to rotate, the sweeper brush being secured to the gear ring.

The gear and the gear ring are adopted to drive the cleaning brush to move, the cleaning brush is not easy to slip by the scheme, namely the movement precision of the cleaning brush is high, the cleaning brush is not easy to block in a pipeline, and the cleaning capacity of the cleaning brush is optimized.

An optional scheme, the track includes first half and second half, first half with the cooperation of second half forms the assembly chamber that holds the ring gear follow on the ring gear the axis direction of ring gear is provided with and is annular spacing arris, spacing arris with the coaxial setting of ring gear assembly intracavity be provided with spacing arris complex spacing groove still be provided with on the track right the opening that the gear abdicates, the opening with the assembly chamber communicates with each other, some of gear be located the assembly intracavity and with the ring gear meshing.

The track comprises a first half part and a second half part, the gear ring is easy to assemble with the track, the gear ring is high in movement precision, and the driving mechanism is easy to maintain.

The limiting edge is mainly used for preventing the gear ring from bouncing along the diameter direction, and the stability of the driving mechanism in the working process is optimized.

According to an optional scheme, the number of the limiting edges is two, the gear ring is located between the two limiting edges, the two limiting edges are provided with arc-shaped surfaces for reducing the contact area between the limiting edges and the side walls of the limiting grooves, and lubricating grease is arranged between the limiting edges and the limiting grooves.

The two limiting edges enable the gear ring to be stressed uniformly in the moving process, the gear ring is not easy to clamp, and the stability of the driving mechanism in the working process is optimized.

The arc-shaped surface reduces the contact area between the limiting edge and the limiting groove, so that the gear ring is not easy to clamp in the working process, and the stability of the driving mechanism in the working process is improved.

In an alternative, the number of the cleaning brushes is 3 to 6, and the cleaning brushes are uniformly distributed on the gear ring along the circumferential direction of the gear ring.

The cleaning brushes are uniformly distributed on the gear ring, the gear ring is uniformly stressed, and the service life of the gear ring is prolonged.

The number of the cleaning brushes is kept between 3 and 6, and the cleaning brushes are not suitable to be arranged too much when being contacted with the side wall of the pipeline, so as to avoid influence on the stability of the vehicle body caused by too large resistance.

The cleaning brush is fixed on the gear ring through the seat body, a clamping groove matched with the gear ring is formed in the seat body, the seat body is further provided with a locking screw which is used for locking the seat body on the gear ring, the axis of the locking screw is parallel to the axis of the gear ring, the locking screw utilizes friction force to lock the seat body on the gear ring, a pit matched with the locking screw is formed in the gear ring, and one part of the locking screw is located in the pit.

The cleaning brush is fixed on the gear ring through the seat body, the seat body is fixed on the gear ring through the locking screw, and the gear ring is provided with the pit.

In an alternative scheme, the cleaning brush is fixed on the base body through a screw, a gasket for preventing the screw from loosening is arranged between the cleaning brush and the base body, and a part of the gasket is bonded on the cleaning brush.

The cleaning brush is firmly fixed with the seat body and is easy to assemble. The cleaning brush can be replaced in time after being damaged, and the maintenance of the natural gas pipeline defect detector is facilitated.

In an alternative, the vehicle body includes a chassis, and the prime mover is fixed to a side of the chassis near the natural gas pipeline, and the prime mover is fixed to the chassis by bolts.

The prime motor is fixed on the chassis, so that the stability of the natural gas pipeline defect detector in the working process is improved, and the vehicle body is not easy to tip over.

According to the selectable scheme, the front end collector is fixed on the vehicle body through screws, the rear end collector is fixed on the vehicle body through screws, the front end illuminator and the rear end illuminator are fixed on the vehicle body through supports, and the supports are located between the front end collector and the rear end collector.

The support is located between front end collector and the rear end collector, the front end illuminator is located behind the front end collector, and the rear end illuminator is located in front of the rear end collector.

In an alternative, the bracket includes a connecting portion assembled with the vehicle body and a supporting portion fixing the front-end illuminator and the rear-end illuminator, the connecting portion is perpendicular to the supporting portion, and a rib is provided between the supporting portion and the connecting portion.

The setting of rib has improved the intensity of support, has optimized the performance of support.

The arrangement of the supporting part enables the front-end illuminator and the rear-end illuminator to be arranged flexibly, and the performance of the natural gas pipeline defect detector is optimized.

Compared with the prior art, the utility model provides a pair of natural gas line defect detector has following advantage:

1. the front-end illuminator and the rear-end illuminator are mainly used for supplementing light to the front-end collector and the rear-end collector, so that the image acquisition precision of the front-end collector and the rear-end collector is improved, and the precision of the natural gas pipeline defect detector is optimized.

2. The cleaning brush is mainly used for cleaning a natural gas pipeline, so that the front-end collector and the rear-end collector have higher image acquisition precision.

3. The front-end collector and the rear-end collector are mainly arranged to collect images of the natural gas pipeline twice, and the rear-end collector collects the images of the cleaned natural gas pipeline, so that the collecting precision of the collectors is improved, and the detection precision of the natural gas pipeline defect detector is optimized.

Drawings

The following drawings are only for the purpose of enabling those skilled in the art to better understand the technical solution of the present invention, and are not intended to limit the scope of the present invention.

FIG. 1 is a schematic diagram of a natural gas pipeline defect detector.

Fig. 2 is a schematic view at B-B in fig. 1.

Fig. 3 is an enlarged view of a in fig. 2.

Fig. 4 is a schematic view of a track.

FIG. 5 is a schematic view of a ring gear.

Detailed Description

The technical solution of the present invention will be further explained with reference to the following embodiments. The following examples are only intended to provide a possible solution and are not intended to limit the invention.

A natural gas pipeline defect detector is used for detecting defects of a natural gas pipeline, is mainly applied to the laying process of the natural gas pipeline and the operation of the natural gas pipeline, finds the defects of the natural gas pipeline in time and guarantees the stable operation of the natural gas pipeline.

As shown in fig. 1, the natural gas pipeline defect detector includes a vehicle body 1 with a traveling capability and a detector disposed on the vehicle body 1, where the vehicle body 1 with the traveling capability means that the vehicle body 1 can travel autonomously, for example, the vehicle body 1 should include wheels 24 and a driving machine for driving the wheels 24 to move, and the driving machine may be a device for outputting a rotating motion, such as a motor.

The detector comprises a front end collector 2 for collecting the front end pipeline image of the vehicle body 1 and a rear end collector 3 for collecting the rear end pipeline image of the vehicle body 1, and the front end collector 2 and the rear end collector can be equipment with an image collecting function such as an industrial camera.

The vehicle body 1 is further provided with a front illuminator 4 for supplementing light to the front end collector 2 and a rear illuminator 5 for supplementing light to the rear end collector 3, and the front illuminator 4 and the rear illuminator 5 are mainly used for supplementing light to the front end collector 2 and the rear end collector 3 so as to improve the image acquisition precision of the front end collector 2 and the rear end collector 3.

As shown in fig. 1, the natural gas pipeline defect detector further includes a communicator 6 and a mobile terminal 7 communicating with the communicator 6, the communicator 6 is fixed on the vehicle body 1, the front end collector 2 and the rear end collector 3 are both communicated with the communicator 6, and images collected by the front end collector 2 and the rear end collector 3 are transmitted to the mobile terminal 7 through the communicator 6. The communicator 6 and the mobile terminal 7 are both in a structure for realizing communication, and the communicator 6 and the mobile terminal 7 communicate in a wireless communication mode. The communicator 6 and the mobile terminal 7 are of conventional construction in the art and are readily available to those skilled in the art by purchase.

The mobile terminal 7 may be a device with mobile communication capability, such as a smart phone or a tablet computer.

As shown in fig. 1, a sweeper for sweeping a wall of a natural gas pipeline is further disposed on the vehicle body 1, and the sweeper includes a rail 8 fixed on the vehicle body 1, a sweeping brush 9 disposed on the rail 8 and moving along the rail 8, and a driving mechanism for driving the sweeping brush 9 to move along the rail 8. The sweeper is mainly used for sweeping the side wall of the pipeline so as to prevent the influence of impurity corrosion on the side wall of the pipeline on the image acquisition precision of the front-end collector 2 and the rear-end collector 3.

The natural gas pipeline may have certain defects during operation or after the laying is completed, and whether the detection of the defects determines the operation performance of the natural gas pipeline in time or not. For example, the defects are found in time, and the natural gas pipeline is maintained in time, so that accidents such as leakage of the natural gas pipeline can be effectively avoided, and the stability of the natural gas pipeline during operation is improved.

Specifically, the detection of the natural gas pipeline generally adopts an industrial camera, and in the prior art, when the natural gas pipeline is detected, only simple image acquisition and subsequent analysis are generally performed on the natural gas pipeline. Although the operation can find the defects of the natural gas pipeline to a certain extent, the accuracy is low, for example, the defects of the natural gas pipeline are difficult to find through image acquisition when the natural gas pipeline has impurities or is rusted, and the operation of the natural gas pipeline is not facilitated.

This scheme utilization brush cleaner 9 cleans natural gas line, and natural gas line all gathers the image before the cleanness and after clean, and this scheme is favorable to the technical staff to carry out the analysis according to the image pair before the cleanness after and the clean natural gas line to do benefit to the timely discovery of natural gas line defect. For example, when a natural gas pipeline has a crack, the crack is covered by impurities, so that the defect is difficult to find when the natural gas pipeline image is acquired, and the natural gas pipeline with the crack has a great hidden trouble in the operation process.

The cleaning brush 9 is adopted to clean the natural pipeline and then acquire images, so that the defects of the natural pipeline can be effectively found.

For another example, a natural gas pipeline has no defects, but a trace similar to a crack is formed on the natural gas pipeline due to corrosion or other impurities, and if only an image of the natural gas pipeline is simply acquired, unnecessary maintenance of the natural gas pipeline without the defects is possible, which increases the running cost of the natural gas pipeline.

The defects of the natural gas pipeline can be effectively found by the cleaning brush 9 matched with the front-end illuminator 4 and the rear-end illuminator 5, so that the precision of the natural gas pipeline defect detector is greatly improved, and the performance of the natural gas pipeline defect detector is optimized.

As shown in fig. 2, 3, 4 and 5, in one possible embodiment, the driving mechanism comprises a prime mover 10 outputting a rotational motion, a gear ring 11 revolving along the track 8, and a gear 12 engaged with the gear ring 11, the prime mover 10 driving the gear 12 to rotate, and the sweeper brush 9 being fixed to the gear ring 11.

The prime mover 10 may be an electric, hydraulic, or pneumatic motor or the like that outputs rotational motion. The prime mover 10 drives the gear 12 to rotate, the gear 12 further drives the gear ring 11 to rotate, and under the action of the unchanged position of the gear 12, the gear ring 11 rotates around the axis of the gear ring 11, so that the cleaning brush 9 is driven to rotate around the axis of the gear ring 11, the cleaning brush 9 is in contact with the side wall of the natural gas pipeline, and the side wall of the natural gas pipeline is cleaned in the rotating process.

Track 8 includes first half 13 and second half 14, first half 13 with second half 14 cooperation forms the assembly chamber 15 that holds ring gear 11 follow on ring gear 11 the axis direction of ring gear 11 is provided with and is annular spacing arris 16, spacing arris 16 can with ring gear 11 formula structure as an organic whole, spacing arris 16 with ring gear 11 coaxial setting be provided with in the assembly chamber 15 with spacing arris 16 complex spacing groove still be provided with on the track 8 right gear 12 gives way opening 17, opening 17 with assembly chamber 15 communicates with each other, some of gear 12 are located in assembly chamber 15 and with ring gear 11 meshes.

The first half 13 and the second half 14 cooperate to form a fitting cavity 15, mainly for ease of fitting the ring gear 11. To make the rail 8 easier to assemble, the rail 8 may also have a plurality of halves, i.e. the rail 8 is of a split construction. Both the first half 13 and the second half 14 may be fixed to the vehicle body 1 by screws.

Due to the arrangement of the rail 8, the gear ring 11 can rotate around the axis of the gear ring 11 without moving axially or radially, and the rail is mainly used for improving the stability of the gear ring 11 in the working process and further improving the stability of the natural gas pipeline defect detector in the working process.

The number of the limiting edges 16 is two, the gear ring 11 is located between the two limiting edges 16, the two limiting edges 16 are provided with arc surfaces for reducing the contact area between the limiting edges 16 and the side walls of the limiting grooves, and lubricating grease is arranged between the limiting edges 16 and the limiting grooves. The arrangement of the arc-shaped surface enables the limiting edge 16 and the limiting groove to be in line contact, so that the resistance of the gear ring 11 in the rotating process is reduced, and the performance of the driving mechanism is optimized.

The number of the cleaning brushes 9 is 3 to 6, and the cleaning brushes 9 are uniformly distributed on the gear ring 11 along the circumferential direction of the gear ring 11. The number of the cleaning brushes 9 is not suitable to be too large, so that too large resistance in the movement process of the cleaning brushes 9 is avoided, and the power of the prime motor 10 is increased, so that the use cost of the natural gas pipeline defect detector is reduced. The cleaning brush 9 is a brush with brush bristles, and when the natural gas pipeline is cleaned, the brush bristles of the cleaning brush 9 are in contact with the side wall of the natural gas pipeline to perform cleaning operation.

The cleaning brush 9 is fixed on the gear ring 11 through a base 18, a clamping groove matched with the gear ring 11 is arranged on the base 18, a locking screw 19 for locking the base 18 on the gear ring 11 is further arranged on the base 18, the axis of the locking screw 19 is parallel to the axis of the gear ring 11, the locking screw 19 utilizes friction force to lock the base 18 on the gear ring 11, a pit matched with the locking screw 19 is arranged on the gear ring 11, and one part of the locking screw 19 is positioned in the pit.

The pit is mainly used for positioning the locking screw 19, and when the locking screw 19 has enough friction with the gear ring 11, the pit can be omitted, so that the cleaning brush 9 is assembled without damaging the structure of the gear ring 11, and the stability of the gear ring 11 in the working process is improved.

The cleaning brush 9 is fixed on the base 18 through a screw, a gasket for preventing the screw from loosening is arranged between the cleaning brush 9 and the base 18, and one part of the gasket is bonded on the cleaning brush 9. The gasket may be an elastic gasket or the like.

As shown in fig. 2, in one possible embodiment, the vehicle body 1 includes a chassis, the prime mover 10 is fixed to a side of the chassis near the natural gas pipeline, and the prime mover 10 is fixed to the chassis by bolts.

The scheme is mainly used for lowering the gravity center of the vehicle body 1 so as to prevent the vehicle body 1 from overturning in the working process. The position of the prime mover 10 on the vehicle body 1 is not limited, and when the prime mover 10 is disposed at another position on the vehicle body 1, a counterweight can be disposed on the vehicle body 1 to lower the center of gravity of the vehicle body 1, thereby improving the stability of the vehicle body 1 during movement.

As shown in fig. 1 and fig. 2, in an alternative scheme, the front end collector 2 is fixed to the vehicle body 1 by screws, the rear end collector 3 is fixed to the vehicle body 1 by screws, the front end illuminator 4 and the rear end illuminator 5 are both fixed to the vehicle body 1 by a bracket 20, and the bracket 20 is located between the front end collector 2 and the rear end collector 3.

The bracket 20 includes a connecting portion 21 assembled with the vehicle body 1 and a supporting portion 22 for fixing the front-end illuminator 4 and the rear-end illuminator 5, the connecting portion 21 is perpendicular to the supporting portion 22, and a rib 23 is provided between the supporting portion 22 and the connecting portion 21.

Both the front-end illuminator 4 and the rear-end illuminator 5 may be fixed to the support portion 22 by screws, the support portion 22 may be welded to the connecting portion 21, and the connecting portion 21 may be fixed to the vehicle body 1 by screws.

It is included in this description that the natural gas pipeline defect detector may include other features in addition to the disclosed technical features, such as necessary power supply, controller, etc. The power supply is mainly used for supplying power to the electric components, and the power supply is suitable for a storage battery which can be charged and discharged repeatedly, so that the use cost of the natural gas pipeline defect detector is reduced.

When the cleaning brush 9 in the natural gas pipeline defect detector is located at the lowest position, the brush hair of the cleaning brush 9 may be lower than the lowest position of the wheel 24, and at this time, because the brush hair may be bent, even if the brush hair is lower than the lowest position of the wheel 24, the wheel 24 may still contact with the pipeline under the action of the self gravity of the vehicle body 1, thereby realizing the walking of the vehicle body 1. Because the bristles are bent, the contact area between the bristles and the pipe wall is larger, and the cleaning capability of the cleaning brush 9 is improved.

The above is only the preferred embodiment of the present invention, which aims to embody the outstanding technical effects and advantages of the present invention, and is not the limitation of the technical solution of the present invention. It should be understood by those skilled in the art that all modifications, changes or alternative technical features made based on the technical contents of the present invention should be covered within the technical scope of the appended claims.

Claims

1. The utility model provides a natural gas line defect detector, includes automobile body (1) that has the walking ability and sets up the detector on automobile body (1), its characterized in that: the detector comprises a front end collector (2) for collecting front end pipeline images of a vehicle body (1), a rear end collector (3) for collecting rear end pipeline images of the vehicle body (1), a front end illuminator (4) for supplementing light to the front end collector (2) and a rear end illuminator (5) for supplementing light to the rear end collector (3) are further arranged on the vehicle body (1), the natural gas pipeline defect detector further comprises a communicator (6) and a mobile terminal (7) communicated with the communicator (6), the communicator (6) is fixed on the vehicle body (1), the front end collector (2) and the rear end collector (3) are communicated with the communicator (6), the images collected by the front end collector (2) and the rear end collector (3) are transmitted to the mobile terminal (7) through the communicator (6), the cleaning device for cleaning the wall of the natural gas pipeline is further arranged on the vehicle body (1) and comprises a rail (8) fixed on the vehicle body (1), a cleaning brush (9) arranged on the rail (8) and moving along the rail (8) and a driving mechanism for driving the cleaning brush (9) to move along the rail (8).

2. A gas pipeline defect detector as claimed in claim 1, wherein: the driving mechanism comprises a prime mover (10) for outputting rotary motion, a gear ring (11) rotating along the track (8) and a gear (12) meshed with the gear ring (11), the prime mover (10) drives the gear (12) to rotate, and the sweeping brush (9) is fixed on the gear ring (11).

3. A gas pipeline defect detector as claimed in claim 2, wherein: track (8) include first half (13) and second half (14), first half (13) with second half (14) cooperation forms assembly chamber (15) that holds ring gear (11) edge on ring gear (11) the axis direction of ring gear (11) is provided with and is annular spacing arris (16), spacing arris (16) with ring gear (11) coaxial arrangement be provided with in assembly chamber (15) with spacing arris (16) complex spacing groove still be provided with on track (8) right gear (12) opening (17) of stepping down, opening (17) with assembly chamber (15) communicate with each other, some of gear (12) are located in assembly chamber (15) and with ring gear (11) meshing.

4. A gas pipeline defect detector as claimed in claim 3, wherein: the number of the limiting edges (16) is two, the gear ring (11) is located between the two limiting edges (16), arc-shaped surfaces for reducing the contact area between the limiting edges (16) and the side walls of the limiting grooves are arranged on the two limiting edges (16), and lubricating grease is arranged between the limiting edges (16) and the limiting grooves.

5. The natural gas pipeline defect detector of claim 4, wherein: the number of the cleaning brushes (9) is 3-6, and the cleaning brushes (9) are uniformly distributed on the gear ring (11) along the circumferential direction of the gear ring (11).

6. A natural gas pipeline defect detector as claimed in claim 2 or 5, wherein: the cleaning brush (9) is fixed on the gear ring (11) through the base body (18), the base body (18) is provided with a clamping groove matched with the gear ring (11), the base body (18) is further provided with a locking screw (19) which is locked on the gear ring (11) by the base body (18), the axis of the locking screw (19) is parallel to the axis of the gear ring (11), in addition, the locking screw (19) utilizes the friction force to lock the base body (18) on the gear ring (11), the gear ring (11) is provided with a pit matched with the locking screw (19), and one part of the locking screw (19) is positioned in the pit.

7. The natural gas pipeline defect detector of claim 6, wherein: the cleaning brush (9) is fixed on the base body (18) through screws, a gasket for preventing the screws from loosening is arranged between the cleaning brush (9) and the base body (18), and one part of the gasket is bonded on the cleaning brush (9).

8. The natural gas pipeline defect detector of claim 6, wherein: the vehicle body (1) comprises a chassis, the prime mover (10) is fixed on one side, close to the natural gas pipeline, of the chassis, and the prime mover (10) is fixed on the chassis through bolts.

9. A gas pipeline defect detector as claimed in claim 1, wherein: the front end collector (2) is fixed on the vehicle body (1) through screws, the rear end collector (3) is fixed on the vehicle body (1) through screws, the front end illuminator (4) and the rear end illuminator (5) are fixed on the vehicle body (1) through a support (20), and the support (20) is located between the front end collector (2) and the rear end collector (3).

10. A gas pipeline defect detector as claimed in claim 9, wherein: the support (20) comprises a connecting part (21) assembled with the vehicle body (1) and a supporting part (22) for fixing the front-end illuminator (4) and the rear-end illuminator (5), the connecting part (21) is perpendicular to the supporting part (22), and ribs (23) are arranged between the supporting part (22) and the connecting part (21).