Sealing detection device for compartment door of railway freight car

Abstract

The utility model discloses a railway wagon compartment door sealing detection device, which belongs to the field of train compartment sealing detection and comprises a compartment mold arranged on a supporting plate and a compartment door body detachably connected to the right side of the compartment mold. The detection mechanism comprises lifting boxes symmetrically arranged in the observation box, the supporting plate is slidably connected between the two lifting boxes, lifting assemblies are arranged on the lifting boxes, and a supporting box is arranged on the left side of the observation box; the air compressor injects air into the compartment mold through the first hose, the synchronous change of the pressure sensor is observed according to the fact that the injected air reaches the preset pressure, meanwhile, a worker observes whether obvious bubbles exist in the compartment mold in the air injection process or not through the observation box, and by means of the detection mode, the detection accuracy is improved. The detection process and the detection result can be visually observed, and the detection result is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of train freight compartment sealing detection, in particular to a railway freight compartment door sealing detection device. Background Art

[0002] During train transportation, the carriages need to be sealed to a certain extent, especially for the transportation of goods. Different sealing methods are required for the different materials of the goods.

[0003] Conventional railway carriage seals are mainly composed of door seals. Usually, during the production process of railway freight car carriage doors, the doors need to be sealed. However, during door inspection, since the doors are not installed on the carriages, relying on ultrasonic leak detection has certain limitations. The ultrasonic beam has its own directionality and attenuation characteristics. The limitations of detection distance and angle may make it difficult to detect certain inaccessible or distant leaks.

[0004] Therefore, the utility model provides a railway freight car compartment door sealing detection device to solve the above-mentioned problem. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a railway freight car compartment door sealing detection device, aiming to solve the problem raised in the background art that the limitations of existing compartment door detection distance and angle may make it difficult to detect certain inaccessible or remote leakage points.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present utility model provides the following technical solution: a railway freight car compartment door sealing detection device, comprising a compartment mold provided on a support plate and a compartment door body detachably connected to the right side of the compartment mold, wherein the support plate is provided on a detection mechanism;

[0009] The detection mechanism includes a lifting box symmetrically arranged inside the observation box, the support plate is slidably connected between the two lifting boxes, the lifting box is provided with a lifting assembly, a support box is provided on the left side of the observation box, an air compressor is provided at the upper end of the support box, and an auxiliary assembly is provided at the end of the observation box away from the air compressor; the surfaces of the carriage door body and the carriage mold are coated with a waterproof coating, and the carriage door body is assembled with the carriage mold on site to make the detection results more in line with the actual situation, the support plate supports the carriage mold, and the observation box is made of transparent material, which can be tempered glass, so that the staff can directly observe the bubbles generated during the detection.

[0010] Preferably, the air compressor is connected to the upper end of the carriage mold through a first hose, the support box is connected to the carriage mold through a second hose, and a pressure sensor is installed on the second hose; the air compressor is connected to the top of the carriage mold through the first hose, and the connection is sealed and waterproof, the second hose is installed at the upper end of the support box, and they are airtight to each other.

[0011] Preferably, a plurality of groups of convex plates are equidistantly arranged on the upper end of the support plate, the carriage mold is overlapped on the upper end of the convex plate, a threaded hole is provided on the upper end of the support plate, and a limiting hole is provided on the end of the support plate away from the threaded hole; the carriage mold is overlapped on the upper end of the convex plate, which can prevent air leakage at the bottom of the carriage mold, and its main observation area is the installation position of the carriage door body.

[0012] Preferably, the lifting assembly includes a first servo motor installed at the upper end of the lifting box on the left side and a threaded rod installed inside the first servo motor. The output end of the first servo motor is connected to the upper end of the threaded rod, and the threaded rod is threadedly inserted into the threaded hole. A positioning rod is installed on the lifting box away from the air compressor, and the positioning rod is movably inserted into the limiting hole.

[0013] Preferably, the auxiliary component includes symmetrically arranged lifting frames and a cargo platform arranged between the two lifting frames, a movable block is installed on the side of the cargo platform, a second servo motor is installed on the upper end of the lifting frame, a screw rod is provided inside the lifting frame, the output end of the second servo motor is fixedly connected to the screw rod, the movable block and the screw rod are threadedly sleeved, and a fixed plate is installed on the side of the lifting frame close to the observation box; the lifting frames are symmetrically arranged with the center of the right side of the observation box, the second servo motor is installed on the lifting frame near the front end, and the second servo motor is connected to the screw rod inside the lifting frame, and a limit rod is installed inside the lifting frame near the rear end, the limit rod and the movable block on the cargo platform are movably interlaced, and when the screw rod rotates, the movable block moves up and down synchronously with the cargo platform, which is convenient for the staff to disassemble and assemble the carriage door body.

[0014] (3) Beneficial effects

[0015] The detection device is provided with a detection mechanism, by assembling the newly produced carriage door body on the carriage mold, using the first servo motor on the lifting box to drive the support plate to move toward the inside of the observation box, and the inside of the observation box is filled with clean water. After the carriage mold is immersed in water, the air compressor injects air into the carriage mold through the first hose, and observes the synchronous changes of the pressure sensor according to the injected air reaching a predetermined pressure. At the same time, the staff observes whether there are obvious bubbles in the carriage mold during the air injection process through the observation box. After the test is completed, the carriage door body is disassembled from the carriage mold to observe whether there are any water stains left inside the carriage mold. Through this detection method, the detection process and results can be observed intuitively, and the detection results are more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a railway freight car compartment door sealing detection device;

[0017] Figure 2 This is a schematic diagram of the cargo platform structure;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the observation box;

[0019] Figure 4 Schematic diagram of the support plate structure;

[0020] Figure 5 Schematic diagram of the convex plate structure.

[0021] In the picture:

[0022] 1. Carriage mold;

[0023] 2. Carriage door body;

[0024] 3. Testing agency;

[0025] 31. Support plate; 32. Lifting box; 33. Observation box; 34. Raised plate; 35. Threaded hole; 36. Threaded rod; 37. Positioning rod; 38. First servo motor;

[0026] 4. Air compressor;

[0027] 41. First hose; 42. Support box; 43. Second hose; 44. Pressure sensor;

[0028] 5. Lifting frame;

[0029] 51. Second servo motor; 52. Fixed plate; 53. Cargo platform; 54. Movable block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The utility model provides a railway freight car compartment door sealing detection device, such as Figure 1-5 As shown, the detection device includes a carriage mold 1 set on a support plate 31 and a carriage door body 2 detachably connected to the right side of the carriage mold 1, and the support plate 31 is set on the detection mechanism 3;

[0032] The detection mechanism 3 includes a lifting box 32 symmetrically arranged inside the observation box 33, the support plate 31 is slidably connected between the two lifting boxes 32, a lifting assembly is provided on the lifting box 32, a support box 42 is provided on the left side of the observation box 33, an air compressor 4 is provided on the upper end of the support box 42, and an auxiliary assembly is provided on the end of the observation box 33 away from the air compressor 4.

[0033] Specifically, the surfaces of the carriage door body 2 and the carriage mold 1 are coated with a waterproof coating, and the carriage door body 2 is assembled with the carriage mold 1 on site to make the test results more in line with the actual situation. The support plate 31 supports the carriage mold 1. The observation box 33 is made of transparent material, which can be tempered glass, so that the staff can directly observe the bubbles generated during the test. The support box 42 mainly supports the air compressor 4, and the air compressor 4 injects gas into the carriage mold 1.

[0034] The air compressor 4 is connected to the upper end of the carriage mold 1 through a first hose 41 , and the support box 42 is connected to the carriage mold 1 through a second hose 43 , and a pressure sensor 44 is installed on the second hose 43 .

[0035] It should be noted that the air compressor 4 is connected to the top of the carriage mold 1 through the first hose 41, and the connection is sealed and waterproof. The second hose 43 is installed at the upper end of the support box 42, and they are airtight to each other. The pressure sensor 44 is connected to the second hose 43 and is mainly used to observe changes in the predetermined air pressure. The pressure sensor 44 is an existing technology, and the observation and installation methods are common means of use in modern life.

[0036] The upper end of the support plate 31 is provided with multiple groups of convex plates 34 at equal intervals. The carriage mold 1 is overlapped on the upper end of the convex plates 34. The upper end of the support plate 31 is provided with a threaded hole 35. The end of the support plate 31 away from the threaded hole 35 is provided with a limiting hole.

[0037] Furthermore, the carriage mold 1 is overlapped on the upper end of the protruding plate 34, which can prevent air leakage at the bottom of the carriage mold 1. The main observation area is the installation position of the carriage door body 2. A threaded hole 35 is opened on the left side of the support plate 31, and a limit hole is opened on the right side of the support plate 31.

[0038] The lifting assembly includes a first servo motor 38 installed at the upper end of the left lifting box 32 and a threaded rod 36 installed inside the first servo motor 38. The output end of the first servo motor 38 is connected to the upper end of the threaded rod 36. The threaded rod 36 is threadedly inserted into the threaded hole 35. The lifting box 32 away from the air compressor 4 is installed with a positioning rod 37, and the positioning rod 37 is movably inserted into the limiting hole.

[0039] Furthermore, the output end of the first servo motor 38 is connected to the threaded rod 36 inside the left lifting box 32, and the limit hole opened on the right side of the support plate 31 is mounted on the positioning rod 37. When the threaded rod 36 rotates, it will drive the support plate 31 to move up and down, which is used to drive the carriage mold 1 to move to the inside of the observation box 33 to facilitate bubble detection.

[0040] The auxiliary components include symmetrically arranged lifting frames 5 and a cargo platform 53 arranged between the two lifting frames 5. A movable block 54 is installed on the side of the cargo platform 53. A second servo motor 51 is installed on the upper end of the lifting frame 5. A screw rod is provided inside the lifting frame 5. The output end of the second servo motor 51 is fixedly connected to the screw rod. The movable block 54 is threadedly sleeved on the screw rod. A fixed plate 52 is installed on the side of the lifting frame 5 close to the observation box 33.

[0041] Furthermore, the lifting frame 5 is symmetrically arranged at the center of the right side of the observation box 33, the second servo motor 51 is installed on the lifting frame 5 near the front end, and the second servo motor 51 is connected to the screw rod inside the lifting frame 5, and a limit rod is installed inside the lifting frame 5 near the rear end. The limit rod is movably interlaced with the movable block 54 on the cargo platform 53. When the screw rod rotates, the movable block 54 moves up and down synchronously with the cargo platform 53, which is convenient for the staff to disassemble and assemble the car door body 2.

[0042] During use, clean water is poured into the transparent observation box 33, and the newly produced carriage door body 2 is assembled on the carriage mold 1. The first servo motor 38 on the lifting box 32 is used to drive the support plate 31 to move into the observation box 33. After the carriage mold 1 is immersed in water, the air compressor 4 injects air into the carriage mold 1 through the first hose 41, and observes the synchronous changes of the pressure sensor 44 according to the injected air reaching the predetermined pressure. At the same time, the staff observes the carriage mold 1 through the observation box 33 to see whether there are obvious bubbles in the process of injecting air. After the test is completed, the carriage door body 2 is removed from the carriage mold 1 to observe whether there are any water stains left inside the carriage mold 1. The removed carriage door body 2 is placed on the cargo platform 53 and descends to the bottom through the cargo platform 53. At this time, the new carriage door body 2 is installed and the installation is continued to repeat the above test. Through this detection method, the detection process and results can be observed intuitively, and the detection results are more comprehensive.

[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A railway freight car compartment door sealing detection device, comprising a compartment mold (1) arranged on a support plate (31) and a compartment door body (2) detachably connected to the right side of the compartment mold (1), wherein the support plate (31) is arranged on a detection mechanism (3); Features: The detection mechanism (3) includes a lifting box (32) symmetrically arranged inside an observation box (33), the support plate (31) is slidably connected between the two lifting boxes (32), a lifting assembly is arranged on the lifting box (32), a support box (42) is arranged on the left side of the observation box (33), an air compressor (4) is arranged at the upper end of the support box (42), and an auxiliary assembly is arranged at the end of the observation box (33) away from the air compressor (4).

2. The railway freight car compartment door sealing detection device according to claim 1, characterized in that: The air compressor (4) is connected to the upper end of the carriage mold (1) via a first hose (41), the support box (42) is connected to the carriage mold (1) via a second hose (43), and a pressure sensor (44) is installed on the second hose (43).

3. The railway freight car compartment door sealing detection device according to claim 2, characterized in that: The upper end of the support plate (31) is provided with a plurality of groups of convex plates (34) at equal intervals, the carriage mould (1) is overlapped on the upper end of the convex plates (34), the upper end of the support plate (31) is provided with a threaded hole (35), and the end of the support plate (31) away from the threaded hole (35) is provided with a limiting hole.

4. The railway freight car compartment door sealing detection device according to claim 3, characterized in that: The lifting assembly includes a first servo motor (38) installed at the upper end of the lifting box (32) on the left side and a threaded rod (36) installed inside the first servo motor (38), the output end of the first servo motor (38) is connected to the upper end of the threaded rod (36), the threaded rod (36) is threadedly inserted into the threaded hole (35), and a positioning rod (37) is installed on the lifting box (32) away from the air compressor (4), and the positioning rod (37) is movably inserted into the limiting hole.

5. The railway freight car compartment door sealing detection device according to claim 1, characterized in that: The auxiliary component comprises symmetrically arranged lifting frames (5) and a cargo platform (53) arranged between two of the lifting frames (5); a movable block (54) is installed on the side of the cargo platform (53); a second servo motor (51) is installed on the upper end of the lifting frame (5); a screw rod is arranged inside the lifting frame (5); the output end of the second servo motor (51) is fixedly connected to the screw rod; the movable block (54) is threadedly sleeved with the screw rod; and a fixing plate (52) is installed on the side of the lifting frame (5) close to the observation box (33).

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