Radar supporting device for detecting vault lining of urban rail transit tunnel

Abstract

The embodiment of the utility model provides a radar support device for urban rail transit tunnel vault lining detection, which comprises a rail car bearing platform (100), a slide rail assembly (200) and an automatic lifting assembly (300), the rail car bearing platform (100) comprises a rail car platform body (1) and two pairs of rail wheels (2) which are arranged on the rail car platform body (1) and run on an urban rail, the sliding rail assembly (200) is connected to the upper portion of the rail car bearing platform (100), the running direction of the sliding rail assembly (200) is perpendicular to the urban rail, the automatic lifting assembly (300) is connected to the upper portion of the sliding rail assembly (200), and the sliding rail assembly (200) drives the automatic lifting assembly (300) to move in the direction perpendicular to the urban rail; the automatic lifting assembly (300) comprises a supporting groove (8) which is arranged at the top and supports the radar device (400). The whole installation, debugging and detection process is basically realized in a full-automatic manner, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering detection / probing, and in particular to a radar supporting device for detecting the vault lining of an urban rail transit tunnel. Background Art

[0002] As we all know, the safety performance of tunnel structure is related to the safe operation of the entire urban rail transit system. Therefore, the quality inspection of tunnel lining is a key project in the safety investigation of tunnel structure during the operation stage of urban rail transit. At present, the commonly used tunnel lining quality inspection method is non-destructive testing means such as ground penetrating radar. Due to the limitations of building clearance and many ancillary facilities in subway tunnels, there are two main processes for radar inspection of tunnel lining quality at this stage: (1) manually supporting the ground penetrating radar antenna with a nearly 4m long metal connecting rod near the tunnel vault for inspection; (2) assembling the track support frame in the subway tunnel, and the inspection personnel need to stand on the top of the frame and use hand support or connecting rods to support the radar antenna in reverse at the top of the tunnel for inspection. These two operation processes have many disadvantages: (1) The metal connecting rod support method requires constant control of the travel position and height of the radar antenna, which is very difficult for inspection personnel to adapt to. Due to the unstable upper pressure, it is too difficult to support the metal rod with the hands, and frequent changes of personnel are required during the operation, which is not conducive to the continuous recording of data. In addition, the inspection personnel cannot accurately grasp the height of the support point. During the inspection process, the radar antenna will inevitably collide and scratch with the tunnel vault from time to time, which seriously affects the quality of the inspection data. In addition, the excessive length of the connecting rod will cause a certain collision risk with the tunnel side wall and the auxiliary facilities on the top. Overall, the work efficiency is very low; (2) The method of building a track support trolley requires It requires about 6 people to coordinate the operation. The rail trolley is large and has many parts. It is cumbersome to enter and exit the subway tunnel from the ground. The process of assembly and disassembly will also waste a lot of working time (the tunnel operation time is limited). In the end, the inspection personnel still need to control the position and height of the radar antenna on the top of the trolley. During the operation, the ground personnel still need to push the trolley on the track, which cannot maintain a uniform running speed. At the same time, there is a great safety risk for the personnel on the top of the trolley during the inspection process. (3) No matter which method is used, the timeliness of the work is greatly reduced, and the safety risk of the working environment is increased. The accuracy of the inspection data and the completion of the workload cannot be guaranteed. Utility Model Content

[0003] The embodiment of the utility model provides a radar support device for detecting the vault lining of an urban rail transit tunnel, which can solve the technical problems in the prior art that the detection personnel control the position and height of the radar antenna on the top of the frame, and the ground personnel still need to push the frame car on the track during operation, and it is impossible to maintain a uniform running speed. At the same time, during the detection process, the personnel above the frame are exposed to great safety risks and the work efficiency is very low.

[0004] To achieve the above-mentioned purpose, the embodiment of the utility model provides a radar support device for detecting the vault lining of an urban rail transit tunnel, comprising a rail vehicle bearing platform, a slide rail assembly and an automatic lifting assembly.

[0005] The rail vehicle carrying platform comprises a rail vehicle platform body, two pairs of rail wheels mounted on the rail vehicle platform body and running at a constant speed on the urban rail,

[0006] The slide rail assembly is connected to the upper part of the rail vehicle carrying platform, and the running direction formed by the slide rail assembly is perpendicular to the urban rail.

[0007] The automatic lifting assembly is connected to the upper part of the slide rail assembly, and the slide rail assembly can drive the automatic lifting assembly to move in a direction perpendicular to the urban track;

[0008] The automatic lifting assembly includes a supporting groove arranged at the top and supporting the radar device.

[0009] Preferably, the slide rail assembly comprises two slide rails and two metal latches.

[0010] The two slide rails are fixed on the upper part of the rail vehicle platform body, and the two slide rails are arranged in parallel and perpendicular to the urban rail.

[0011] Each of the metal teeth is correspondingly mounted and runs in one of the slide rails, and the metal teeth are fixed at the bottom of the automatic lifting assembly.

[0012] The slide rail assembly further includes a locking assembly, which is used to lock the automatic lifting assembly with the slide rail after the metal latch drives the automatic lifting assembly to move until the radar device is moved to a suitable position.

[0013] Preferably, the length of the slide rail is the same as the length of the rail vehicle platform body in the same direction.

[0014] Preferably, the slide rail assembly further comprises two rubber baffles, which are fixed to the rail vehicle platform body along the length direction of the slide rail, and one rubber baffle is correspondingly arranged on the outer side of one of the slide rails.

[0015] Preferably, the automatic lifting assembly includes a base panel, a lifting rod bracket with an upward and downward telescopic function, and a hydraulic lifting rod for driving the lifting rod bracket to rise and fall.

[0016] The base panel is connected to the upper portion of the slide rail assembly.

[0017] One end of the lifting rod bracket is connected to the upper part of the base panel, and the other end of the lifting rod bracket is telescopically connected to the lifting rod bracket.

[0018] The lifting rod bracket comprises a plurality of metal rods, and the lifting rod bracket is formed by sequentially movably connecting the plurality of metal rods.

[0019] Preferably, the automatic lifting assembly further comprises a foam slot, and the radar device is fixed in the supporting slot via the foam slot.

[0020] The foam card slot has multiple specifications, and each specification matches a model of the radar device.

[0021] Preferably, it also includes: an oil storage tank connected to the hydraulic lifting rod and providing hydraulic oil for the hydraulic lifting rod, and the oil storage tank is arranged in the cavity of the rail vehicle platform body.

[0022] Preferably, it also includes a control component and a motor, the control component includes a railcar power switch, an automatic lifting component switch and a railcar inspection indicator light, the motor is arranged in the cavity of the railcar platform body, the motor is used to supply power to the slide rail assembly and the control component respectively, the railcar power switch and the automatic lifting component switch are arranged on the railcar platform body, the railcar inspection indicator light is arranged on the side of the railcar platform body and is located on the platform side of the urban rail.

[0023] The railcar power switch is connected to the motor via wires,

[0024] The automatic lifting assembly switch is used to control the rise or fall of the lifting rod bracket.

[0025] Preferably, the control component also includes an operating handle, which is connected to a motor that provides electrical energy through a connecting line, and the operating handle is used to control the rise or fall of the lifting rod bracket, and to control the slide rail assembly to run in a direction perpendicular to the urban rail.

[0026] Preferably, the control component further comprises an emergency brake button, which is arranged on the rail vehicle platform body and is used to control the brake component connected to the rail wheel to brake the rail wheel.

[0027] The above technical scheme has the following beneficial effects: when using the radar support device for detecting the vault lining of a urban rail transit tunnel of the utility model, the device is first lifted onto the urban rail, such as the subway rail, and then the radar device, such as the ground-penetrating radar antenna, is placed upside down in the support groove, and the support groove is raised to a height position suitable for the operation of the tunnel vault by using the automatic lifting component, and then the support radar device is adjusted laterally to a suitable position by running the slide rail component in a direction perpendicular to the urban rail, so as to realize the vertical automatic retraction and automatic adjustment of the lateral position of the radar device, and finally complete the stable contact between the bottom plate of the ground-penetrating radar antenna and the surface of the subway tunnel vault lining, and finally use the rail wheels to run stably and at a uniform speed on the urban rail, so that the radar device can complete the non-destructive testing of the quality of the vault lining of the urban rail transit tunnel, thereby increasing the stability of the detection process and greatly ensuring the operation time and data quality.

[0028] When this device is used for inspection in the tunnel of urban rail, compared with the traditional tunnel lining inspection method, the number of instruments and equipment carried is less and the size is smaller, and the entire installation, commissioning and inspection process is basically fully automated, without requiring much physical labor, which can save a lot of working time and greatly improve work efficiency. At the same time, it also reduces labor intensity and labor costs, ensures the safety of operators and urban rail transit on-site facilities, and only requires one staff member to complete it, which can maximize production benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is an axial schematic diagram of a radar support device for detecting the vault lining of an urban rail transit tunnel according to an embodiment of the utility model;

[0031] Figure 2 yes Figure 1 A top view schematic diagram of

[0032] Figure 3 yes Figure 2 Left view of .

[0033] Figure Number:

[0034] 100. Railcar carrying platform; 200. Slide rail assembly; 300. Automatic lifting assembly; 1. Railcar platform body; 2. Rail wheels; 3. Slide rails; 4. Rubber baffles; 5. Base panel; 6. Hydraulic lifting rod; 7. Lifting rod bracket; 8. Support slot; 9. Foam card slot; 10. Railcar power switch; 11. Automatic lifting assembly switch; 12. Emergency brake button; 13. Connecting wire; 14. Operating handle; 15. Railcar inspection indicator light; 16. Oil storage tank; 17. Motor; 18. Metal teeth; 71. Metal rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1 As shown, in combination with the embodiment of the utility model, a radar support device for detecting the vault lining of an urban rail transit tunnel is provided, comprising a rail vehicle bearing platform 100, a slide rail assembly 200 and an automatic lifting assembly 300.

[0037] The rail vehicle carrying platform 100 includes a rail vehicle platform body 1, and two pairs of rail wheels 2 installed on the rail vehicle platform body 1 and running at a constant speed on the urban rail. Preferably, the rail vehicle platform body 1 is a stainless steel box.

[0038] The slide rail assembly 200 is connected to the upper part of the rail vehicle carrying platform 100, and the running direction formed by the slide rail assembly 200 is perpendicular to the urban rail. The automatic lifting assembly 300 is connected to the upper part of the slide rail assembly 200, and the slide rail assembly 200 can drive the automatic lifting assembly 300 to move in a direction perpendicular to the urban rail; the automatic lifting assembly 300 includes a supporting groove 8 arranged at the top to support the radar device 400.

[0039] When using the radar support device for detecting the vault lining of a urban rail transit tunnel of the utility model, the device is first lifted onto the urban rail, such as a subway rail, and then a radar device, such as a ground-penetrating radar antenna, is placed upside down in the support groove 8. The automatic lifting component 300 is used to raise the support groove 8 to a height position suitable for the operation of the tunnel vault. Then, the slide rail component 200 is operated in a direction perpendicular to the urban rail to adjust the supporting radar device 400 laterally to a suitable position, thereby realizing the vertical automatic retraction and automatic adjustment of the lateral position of the radar device 400, and finally completing the stable contact between the bottom plate of the ground-penetrating radar antenna and the surface of the subway tunnel vault lining. Finally, the rail wheel 2 is used to run stably and at a uniform speed on the urban rail, so that the radar device 400 can complete the non-destructive testing of the quality of the vault lining of the urban rail transit tunnel, thereby increasing the stability of the detection process and greatly ensuring the operation time and data quality.

[0040] When this device is used for detection in the tunnel of urban rail, compared with the traditional tunnel lining detection method, the number of instruments and equipment carried is smaller and the size is smaller, and the entire installation, debugging and detection process is basically fully automated, without requiring much physical labor, which can save a lot of working time and greatly improve work efficiency. At the same time, it also reduces labor intensity and labor costs, and ensures the safety of operators and urban rail transit on-site facilities. It only requires 3 staff members (two are responsible for the transportation and adjustment of the rail car device, and one is responsible for the transportation and operation of the ground penetrating radar) to complete it, which can maximize production efficiency.

[0041] Preferably, if Figure 1 , Figure 2 and Figure 3 As shown, the slide rail assembly 200 includes two slide rails 3 and two metal teeth 18. The two slide rails 3 are fixed to the upper part of the rail vehicle platform body 1. Preferably, the slide rails 3 are welded to the upper part of the rail vehicle platform body 1. The two slide rails 3 are arranged in parallel and perpendicular to the urban rail. Each metal tooth 18 protrudes downward and is correspondingly clamped and operated in the clamping groove of one of the slide rails 3. The metal tooth 18 is fixed to the bottom of the automatic lifting assembly 300. Preferably, it is bolted. The two slide rails 3 have the same specifications. The two metal teeth 18 have the same specifications. The metal teeth 18 can be clamped and operated in the slide rails to achieve the purpose of adjusting the lateral position of the automatic lifting assembly 300, that is, to achieve the purpose of adjusting the lateral position of the radar device 400. The lower end of the metal tooth 18 has a protrusion, which is coupled with the internal U-shaped groove structure (depth and width) of the slide rail 3, so that it can slide horizontally in the groove of the free slide rail 3. In this way, the combination completes the lateral positioning function of the radar support device for the detection of the arch lining of the urban rail transit tunnel.

[0042] The slide rail assembly 200 also includes a locking assembly, which is used to lock the automatic lifting assembly 300 with the slide rail 3 after the metal latch 18 drives the automatic lifting assembly 300 to move until the radar device 400 is moved to a suitable position, thereby fixing the automatic lifting assembly 300, that is, fixing the radar device 400.

[0043] Preferably, the length of the slide rail 3 is the same as the length of the rail vehicle platform body 1 in the same direction, so that the adjustment range of the lateral position of the radar device 400 is maximized.

[0044] Preferably, if Figure 1 and Figure 3 As shown, the slide rail assembly 200 also includes two rubber baffles 4, which are fixed on the rail vehicle platform body 1 along the length direction of the slide rail 3, and a rubber baffle 4 is correspondingly arranged on the outer side of one of the slide rails 3, and each row of rubber baffles provides anti-collision protection for the automatic lifting assembly 300.

[0045] Preferably, if Figure 1 As shown, the automatic lifting assembly 300 includes a base panel 5, a lifting rod bracket 7 with an up and down telescopic function, and a hydraulic lifting rod 6 that drives the lifting rod bracket 7 to rise and fall. The base panel 5 is connected to the upper part of the slide rail assembly 200, and one end of the lifting rod bracket 7 is connected to the upper part of the base panel 5. Preferably, welding or bolt connection is adopted, and the other end of the lifting rod bracket 7 is telescopically connected to the lifting rod bracket 7. Preferably, welding or bolt connection is adopted, and the lifting rod bracket 7 includes a plurality of metal rods 71, and the lifting rod bracket 7 is formed by sequentially movably connecting the plurality of metal rods 71.

[0046] The size of the base panel 5 is about 50cm×100cm, and the lifting rod bracket 7 is a combined lifting rod device, which is connected to each other by metal rods 71 ​​of two lengths of 60cm and 110cm, and the lower end is fixed to the four corners of the base panel 5 by bolts, and the middle is a hydraulic lifting rod 6. The upper end of the lifting rod bracket 7 is fixed to the bottom of the support groove 8 by bolts.

[0047] Preferably, if Figure 1As shown, the automatic lifting assembly 300 also includes a foam card slot 9, and the radar device 400 is fixed in the support slot 8 through the foam card slot 9. The foam card slot 9 has multiple specifications, and each specification matches a model of the radar device 400. The foam card slot 9 is set with multiple specifications, so that the support slot 8 can be suitable for ground penetrating radar brands commonly used in the market, such as 400MHz, 800MHz or 900MHz ground penetrating radars produced by GSSI of the United States, IDS of Italy, MALA of Sweden, etc., thereby reducing the cost of re-development or purchase of expensive equipment and reducing the total cost.

[0048] Preferably, the size of the support groove 8 is about 10 cm×50 cm×100 cm, and foam card slots 9 of various sizes can be placed inside the support groove 8 to match ground penetrating radar antennas of different models and sizes.

[0049] Preferably, it further comprises: an oil storage tank 16 connected to the hydraulic lifting rod 6 to provide hydraulic oil for the hydraulic lifting rod 6 , and the oil storage tank 16 is arranged in the cavity of the rail vehicle platform body 1 .

[0050] Preferably, if Figure 2 and Figure 3 As shown, it includes a control component and a motor 17, the control component includes a rail car power switch 10, an automatic lifting component switch 11 and a rail car inspection indicator light 15, the motor 17 is arranged in the cavity of the rail car platform body 1, the motor 17 is used to supply power to the slide rail assembly 200 and the control component respectively, the rail car power switch 10 and the automatic lifting component switch 11 are arranged on the rail car platform body 1, the rail car inspection indicator light 15 is arranged on the side of the rail car platform body 1 and is located on the platform side of the urban rail, the rail car power switch 10 is connected to the motor 17 through an electric wire, and the automatic lifting component switch 11 is used to control the rise or fall of the lifting rod bracket 7.

[0051] Preferably, if Figure 2 As shown, the control component also includes an operating handle 14, which includes a digital display screen, a start / pause button, a gear size adjustment button and a reverse button. The digital display screen can display the forward, backward and pause of the rail vehicle carrying platform 100, as well as the operating speeds of three different gears. The operating handle 14 is connected to the motor 17 that provides electrical energy through a connecting line 13. The operating handle 14 is used to control the rise or fall of the lifting rod bracket 7, and is used to control the slide rail assembly 200 to run in a direction perpendicular to the urban rail.

[0052] Preferably, a rechargeable power source and a power control system are also provided in the cavity of the rail vehicle platform body 1, which mainly provide the device with a running power mechanism on the subway track. The rail vehicle carrying platform has three different gears of running speeds, which can be adjusted and controlled by the operating handle 14.

[0053] Preferably, the control component further includes an emergency brake button 12 , which is disposed on the rail vehicle platform body 1 and is used to control a brake component connected to the rail wheel 2 to brake the rail wheel 2 .

[0054] In summary, in the actual operation of the utility model, first lift the device to the urban rail of the part to be detected in the urban rail tunnel and place it firmly to ensure that the limit device of the rail wheel 2 is stuck on the inner side of the urban rail. According to the model of the radar device, select a suitable foam card slot 9 to be placed inside the support slot 8, and place the radar device upside down in the foam card slot 9 and fix it. Turn on the rail car power switch 10 and the automatic lifting component switch 11, check the lighting of the rail car inspection indicator 15 on site, use the automatic lifting component 300 to raise the support slot 8 to a height position suitable for the operation of the tunnel vault, and then operate the slide rail component 200 in a direction perpendicular to the urban rail, adjust the supporting radar device 400 horizontally to a suitable position, and then raise the radar antenna of the radar device to the top of the tunnel through the operating handle 14, and accurately adjust the position of the radar antenna on the slide rail 3. After everything is completed, the base panel 5 and the slide rail 3 are fixed with bolts or screws. Start the main engine of the radar device, set various detection parameters, and after the adjustment test is completed, use the operating handle 14 to start the rail wheel 2 of the rail vehicle carrying platform to carry out radar detection operations in the tunnel. According to the on-site environment, you can choose a suitable speed gear to travel. If you encounter an emergency, you can press the emergency brake button 12 to stop the rail wheel 2 from rotating.

[0055] Among them, all working instructions of the radar device are on the radar host interface, which can be operated by dedicated personnel and are not controlled by the rail vehicle.

[0056] After the detection is completed, the rail wheel 2 is stopped first, then the radar device is turned off, then the lifting rod bracket 7 is retracted, the hydraulic lifting switch of the hydraulic lifting rod is turned off, and finally the power is turned off through the rail car power switch 10.

[0057] The quality inspection of the arch lining of urban rail transit tunnels is an engineering category with special requirements and environmental constraints. The working time is short and the working environment is restricted. The measurement process requires the detection antenna of the ground penetrating radar to be inverted and placed on the top of the tunnel. During the operation, the radar antenna is required to always maintain a fixed position and height, and it must not hinder the safety of other ancillary facilities in the subway tunnel. The traditional manual operation process requires a lot of manpower and material resources. The radar support device for the detection of the arch lining of urban rail transit tunnels of the utility model adopts a hydraulic lifting combination to completely replace the traditional manual metal rod support or assembly of the track frame car, which can simplify the operation process and work intensity of the radar antenna supporting the radar device, realize the process of automating and liberating manual labor, reduce labor intensity, and ensure personal safety. It can also achieve a detection speed of 2.5 to 3.5 kilometers per hour, and can complete the work of tunnel arch radar detection to the maximum extent within a limited time, thereby maximizing production efficiency.

[0058] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the attached claims, the utility model is in a state with less than all the features of the disclosed individual embodiments. Therefore, the attached claims are hereby expressly incorporated into the detailed description, with each claim acting alone as a separate preferred embodiment of the utility model.

[0059] The disclosed embodiments are described above to enable any person skilled in the art to implement or use the present invention. Various modifications of these embodiments are obvious to those skilled in the art, and the general principles defined herein may also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in the present application.

[0060] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

[0061] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A radar support device for detecting the vault lining of an urban rail transit tunnel, characterized in that: It comprises a rail vehicle bearing platform (100), a slide rail assembly (200) and an automatic lifting assembly (300). The rail vehicle carrying platform (100) comprises a rail vehicle platform body (1), two pairs of rail wheels (2) mounted on the rail vehicle platform body (1) and running at a constant speed on the urban rail, The slide rail assembly (200) is connected to the upper part of the rail vehicle bearing platform (100), and the running direction formed by the slide rail assembly (200) is perpendicular to the urban rail. The automatic lifting component (300) is connected to the upper part of the slide rail component (200), and the slide rail component (200) can drive the automatic lifting component (300) to move in a direction perpendicular to the urban track; The automatic lifting component (300) comprises a supporting groove (8) arranged at the top and supporting the radar device (400).

2. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 1 is characterized in that: The slide rail assembly (200) comprises two slide rails (3) and two metal latch teeth (18). The two slide rails (3) are fixed on the upper part of the rail vehicle platform body (1), and the two slide rails (3) are arranged in parallel and perpendicular to the urban rail. Each of the metal latch teeth (18) is correspondingly mounted and operated in one of the slide rails (3), and the metal latch teeth (18) are fixed at the bottom of the automatic lifting component (300). The slide rail assembly (200) further comprises a locking assembly, which is used to lock the automatic lifting assembly (300) with the slide rail (3) after the metal latch (18) drives the automatic lifting assembly (300) to move until the radar device (400) is moved to a suitable position.

3. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 2 is characterized in that: The length of the slide rail (3) is the same as the length of the rail vehicle platform body (1) in the same direction.

4. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 2, characterized in that: The slide rail assembly (200) further comprises two rubber baffles (4), wherein the rubber baffles (4) are fixed to the rail vehicle platform body (1) along the length direction of the slide rail (3), and one rubber baffle (4) is correspondingly arranged on the outer side of one of the slide rails (3).

5. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 1, characterized in that: The automatic lifting assembly (300) comprises a base panel (5), a lifting rod bracket (7) with a function of upward and downward extension, and a hydraulic lifting rod (6) for driving the lifting rod bracket (7) to ascend and descend. The base panel (5) is connected to the upper portion of the slide rail assembly (200). One end of the lifting rod bracket (7) is connected to the upper part of the base panel (5), and the other end of the lifting rod bracket (7) is telescopically connected to the lifting rod bracket (7). The lifting rod bracket (7) comprises a plurality of metal rods (71), and the lifting rod bracket (7) is formed by sequentially movably connecting the plurality of metal rods (71).

6. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 5, characterized in that: The automatic lifting component (300) further comprises a foam slot (9), and the radar device (400) is fixed in the supporting slot (8) via the foam slot (9). The foam card slot (9) has a variety of specifications, and each specification matches a model of the radar device (400).

7. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 5, characterized in that: Also includes: An oil storage tank (16) is connected to the hydraulic lifting rod (6) and provides hydraulic oil to the hydraulic lifting rod (6); the oil storage tank (16) is arranged in the cavity of the rail vehicle platform body (1).

8. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 5, characterized in that: The invention also comprises a control component and a motor (17), wherein the control component comprises a rail vehicle power switch (10), an automatic lifting component switch (11) and a rail vehicle inspection indicator light (15), wherein the motor (17) is arranged in a cavity of the rail vehicle platform body (1), and the motor (17) is used to supply power to the slide rail assembly (200) and the control component respectively, wherein the rail vehicle power switch (10) and the automatic lifting component switch (11) are arranged on the rail vehicle platform body (1), and the rail vehicle inspection indicator light (15) is arranged on a side of the rail vehicle platform body (1) and is located on the platform side of the urban rail. The railcar power switch (10) is connected to the motor (17) via an electric wire. The automatic lifting component switch (11) is used to control the rise or fall of the lifting rod bracket (7).

9. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 8, characterized in that: The control component also includes an operating handle (14), which is connected to a motor (17) that provides electrical energy via a connecting line (13), and the operating handle (14) is used to control the rise or fall of the lifting rod bracket (7), and to control the slide rail assembly (200) to run in a direction perpendicular to the urban rail.

10. The radar support device for detecting the vault lining of an urban rail transit tunnel according to claim 8, characterized in that: The control component also includes an emergency brake button (12), which is arranged on the rail vehicle platform body (1) and is used to control a brake component connected to the rail wheel (2) to brake the rail wheel (2).

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