An automatic spray-type penetrant inspection device

Abstract

The application discloses an automatic spraying type penetration flaw detection device and belongs to the technical field of flaw detection devices. The automatic spraying type penetration flaw detection device comprises a push rod, a mounting seat, U-shaped seats, rollers, a transmission mechanism and a spraying mechanism. One end of the push rod is fixedly provided with the mounting seat. The mounting seat is fixedly provided with the U-shaped seats around. The U-shaped seats are rotatably provided with the rollers. The mounting seat is provided with the transmission mechanism. The transmission mechanism is connected with the rotating shafts of the rollers. The mounting seat and the push rod are provided with the spraying mechanism. The spraying mechanism is connected with the transmission mechanism. The mounting seat is inserted into a pipeline through the push rod. The rollers are attached to the inner wall of the pipeline. The push rod is pushed so that the rollers roll along the inner wall of the pipeline. The rollers drive the transmission mechanism to operate. The transmission mechanism sprays penetrant, developer and the like to the inner wall of the pipeline. Thus, the pipeline can be fully sprayed in the length direction. The spraying amount is in a fixed ratio with the walking amount, and the purpose of uniform spraying is achieved.

Description

Technical Field

[0001] This application relates to the field of flaw detection equipment technology, and more specifically, to an automatic spray-type penetrant testing device. Background Technology

[0002] Pipelines are often used for transporting liquids, gases and other fluids. They require good sealing and pressure resistance. However, as the pipeline ages and is corroded and worn by the fluid, the pipe wall may become thinner or cracked, which reduces the pipeline's sealing and pressure resistance. Therefore, it is often necessary to perform flaw detection on the inner wall.

[0003] The prior art document CN222014008U provides a deep-hole penetrant testing reagent spraying device, including a cassette, a through groove on the side wall of the cassette, a spray can installed inside the cassette, a spray pipe installed inside the spray can, a piston provided on the outside of the spray pipe wall, one end of the spray pipe extending out of the spray can and having a spray outlet on the side wall of the extending end, the spray outlet facing outward of the through groove, a squeezing head provided at the end of the spray pipe inside the cassette, the squeezing head connected to a telescopic rod, a slider provided on the outer wall of the telescopic rod, the slider being slidably installed inside the cassette, a marking sleeve fixed at one end of the cassette, marking graduations provided on the outer wall of the marking sleeve, and one end of the telescopic rod extending out of the cassette and the marking sleeve.

[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through their structure, they still have the following drawbacks:

[0005] If the spray can is inserted into the pipe and then push-pull spraying is performed, it cannot be guaranteed that the penetrant is sprayed evenly along the length of the pipe, and the distribution of the penetrant will be uneven.

[0006] Regarding the aforementioned related technologies, the inventor believes that if the spray can is inserted into the pipe and then push-pull spraying is performed, it cannot be guaranteed that the penetrant is sprayed evenly along the length of the pipe, and the distribution of the penetrant is uneven.

[0007] In view of this, we propose an automatic spray-type penetrant testing device. Utility Model Content

[0008] 1. Technical problems to be solved

[0009] The purpose of this application is to provide an automatic spray-type penetrant testing device, which solves the technical problem in the background art that, after the spray can is inserted into the pipe and push-pull spraying is performed, it is impossible to ensure that the penetrant is sprayed evenly along the length of the pipe, and the distribution of the penetrant is uneven, thus achieving the technical effect.

[0010] 2. Technical Solution

[0011] This application provides an automatic spray-type penetrant testing device, comprising:

[0012] Putter;

[0013] Mounting base, one end of the push rod is fixedly mounted with a mounting base;

[0014] U-shaped base, the mounting base is fixedly installed around its perimeter;

[0015] Rollers are rotatably mounted inside each of the U-shaped seats;

[0016] A transmission mechanism is mounted on the mounting base, and the transmission mechanism is connected to the rotating shaft of the roller;

[0017] A spraying mechanism is provided, wherein the mounting base and the push rod are equipped with a spraying mechanism, and the spraying mechanism is connected to a transmission mechanism.

[0018] The above method involves inserting the mounting base into the pipe using a push rod, with the rollers adhering to the inner wall of the pipe. Pushing the push rod causes the rollers to roll along the inner wall of the pipe, which in turn drives the transmission mechanism. The transmission mechanism then causes the spraying mechanism to spray penetrants, developers, etc., onto the inner wall of the pipe. This ensures thorough spraying along the length of the pipe, with the amount of sprayed material proportional to the travel distance, achieving uniform spraying.

[0019] Optionally, the transmission mechanism includes a driving gear, a roller shaft passing through a U-shaped seat and fixedly sleeved with the driving gear, a transmission shaft rotatably sleeved on the outer wall of the U-shaped seat, a driven gear fixedly sleeved on the transmission shaft, the driven gear meshing with the driving gear, a sliding frame slidably engaged on the mounting base, racks fixedly installed at the top and bottom of the inner cavity of the sliding frame, the transmission shaft extending into the inner cavity of the sliding frame and fixedly sleeved with a half gear, the half gear meshing with the rack, a rotating shaft fixedly sleeved on the roller, and the rotating shaft rotatably sleeved with the U-shaped seat, the bottom of the sliding frame having a T-shaped structure, and a groove on the mounting base that matches the bottom of the sliding frame, the sliding frame connecting to the spraying mechanism.

[0020] With the above scheme, when the roller rolls along the inner wall of the pipe, it drives the driving gear to rotate. The driving gear drives the driven gear to rotate, and the transmission shaft drives the half gear to rotate. The half gear alternately meshes with the two racks, thereby causing the sliding frame to move back and forth, achieving the purpose of driving the spraying mechanism.

[0021] Optionally, the spraying mechanism includes a storage cylinder and a fixed cylinder. The storage cylinder and the fixed cylinder are fixedly sleeved on the mounting base. A piston is slidably engaged inside the fixed cylinder. A push-pull rod is fixedly sleeved on the piston. Both ends of the push-pull rod pass through both ends of the fixed cylinder and are fixedly connected to one end of a connecting rod. The other end of the connecting rod is fixedly connected to the end of a sliding frame. Both ends of the fixed cylinder are connected to the storage cylinder through suction pipes. A fixing ring is fixedly installed at the end of the push rod near the mounting base. Multiple spray nozzles are fixedly installed on the fixing ring. Both ends of the fixed cylinder are connected to the fixing ring through discharge pipes. The storage cylinder is equipped with inlet and outlet valves. One-way valves are installed in both the suction pipe and the discharge pipe.

[0022] The above scheme involves storing penetrants, developers, etc. in the storage cylinder. The sliding frame moves back and forth via a connecting rod, causing the piston to move back and forth, thereby drawing the penetrants from the storage cylinder into the fixed cylinder. The penetrants are then sent into the fixed ring through the discharge pipe and finally sprayed out through the ring-shaped nozzles. The push rod then moves the mounting base to continuously spray the inner wall of the pipe. The travel length is proportional to the spray volume, achieving uniform spraying.

[0023] 3. Beneficial effects

[0024] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0025] 1. This application uses a push rod to make a roller roll along the inner wall of the pipe. The roller drives the transmission mechanism to operate, and the transmission mechanism causes the spraying mechanism to spray penetrant, developer, etc. onto the inner wall of the pipe. This allows for sufficient spraying along the length of the pipe, and the amount of spraying is proportional to the amount of travel, achieving the purpose of uniform spraying. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic spray-type penetrant testing device disclosed in a preferred embodiment of this application;

[0027] Figure 2 This application discloses a preferred embodiment. Figure 1 Enlarged structural diagram at point A in the middle;

[0028] The following are the labels in the diagram: 1. Push rod; 2. Mounting base; 3. U-shaped base; 4. Roller; 5. Transmission mechanism; 51. Drive gear; 52. Drive shaft; 53. Driven gear; 54. Half gear; 55. Sliding frame; 56. Rack; 6. Spraying mechanism; 61. Storage cylinder; 62. Fixed cylinder; 63. Piston; 64. Push-pull rod; 65. Connecting rod; 66. Fixed ring; 67. Spray nozzle; 68. Discharge pipe. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1 This application provides an automatic spray-type penetrant testing device, comprising: a push rod 1; a mounting base 2, one end of which is fixedly mounted; a U-shaped base 3, which is fixedly mounted around the perimeter of the mounting base 2; rollers 4, each of which is rotatably mounted within the U-shaped base 3; a transmission mechanism 5, which is mounted on the mounting base 2 and connected to the rotating shaft of the rollers 4; and a spraying mechanism 6, which is mounted on the mounting base 2 and the push rod 1 and connected to the transmission mechanism 5. The push rod 1 extends the mounting base 2 into the pipe, and the rollers 4 adhere to the inner wall of the pipe, pushing the push rod 1 to cause the rollers 4 to roll along the inner wall of the pipe. The rollers 4 drive the transmission mechanism 5 to rotate, and the transmission mechanism 5 causes the spraying mechanism 6 to spray penetrant, developer, etc., onto the inner wall of the pipe. This allows for thorough spraying along the length of the pipe, and the spraying amount is proportional to the travel distance, achieving uniform spraying.

[0031] Reference Figure 1 and Figure 2 The transmission mechanism 5 includes a drive gear 51, a roller 4 whose shaft passes through a U-shaped seat 3 and is fixedly sleeved with the drive gear 51, a transmission shaft 52 rotatably sleeved on the outer wall of the U-shaped seat 3, a driven gear 53 fixedly sleeved on the transmission shaft 52, the driven gear 53 meshing with the drive gear 51, a sliding frame 55 slidably engaged on the mounting base 2, racks 56 fixedly installed at the top and bottom of the inner cavity of the sliding frame 55, the transmission shaft 52 extending into the inner cavity of the sliding frame 55 and fixedly sleeved with a half gear 54, the half gear 54 meshing with the rack 56, and the roller... A rotating shaft is fixedly sleeved on the 4, and the rotating shaft rotates to sleeve the U-shaped seat 3. The bottom of the sliding frame 55 has a T-shaped structure, and the mounting base 2 has a groove that matches the bottom of the sliding frame 55. The sliding frame 55 is connected to the spraying mechanism 6. When the roller 4 rolls along the inner wall of the pipe, it drives the drive gear 51 to rotate. The drive gear 51 drives the driven gear 53 to rotate, and the transmission shaft 52 drives the half gear 54 to rotate. The half gear 54 alternately meshes with two racks 56, thereby causing the sliding frame 55 to move back and forth, achieving the purpose of driving the spraying mechanism 6.

[0032] Reference Figure 1 and Figure 2The spraying mechanism 6 includes a storage cylinder 61 and a fixed cylinder 62. The storage cylinder 61 and the fixed cylinder 62 are fixedly sleeved on the mounting base 2. A piston 63 is slidably engaged inside the fixed cylinder 62. A push-pull rod 64 is fixedly sleeved on the piston 63. Both ends of the push-pull rod 64 pass through both ends of the fixed cylinder 62 and are fixedly connected to one end of a connecting rod 65. The other end of the connecting rod 65 is fixedly connected to the end of a sliding frame 55. Both ends of the fixed cylinder 62 are connected to the storage cylinder 61 through suction pipes. A fixing ring 66 is fixedly installed on the end of the push rod 1 near the mounting base 2. Multiple nozzles 67 are fixedly installed on the fixing ring 66. Both ends of the fixed cylinder 62 are connected through outlet pipes. The material pipe 68 is connected to the fixing ring 66. The storage cylinder 61 is equipped with inlet and outlet valves. Both the suction pipe and the discharge pipe 68 are equipped with one-way valves. The storage cylinder 61 stores penetrant, developer, etc. The sliding frame 55 drives the push-pull rod 64 to move back and forth through the connecting rod 65, and the piston 63 moves back and forth, thereby drawing the penetrant, etc. from the storage cylinder 61 into the fixing cylinder 62, and then sending it into the fixing ring 66 through the discharge pipe 68. Finally, it is sprayed out through the ring-shaped nozzles 67. The push rod 1 pushes the mounting base 2 to move, so that the inner wall of the pipe can be continuously sprayed. The travel length is proportional to the spraying amount, so as to achieve the purpose of uniform spraying.

[0033] Working principle: The storage cylinder 61 stores penetrant, developer, etc. The mounting base 2 is inserted into the pipe by the push rod 1. The roller 4 is in contact with the inner wall of the pipe and pushes the push rod 1, causing the roller 4 to roll along the inner wall of the pipe. When the roller 4 rolls along the inner wall of the pipe, it drives the drive gear 51 to rotate. The drive gear 51 drives the driven gear 53 to rotate, and the transmission shaft 52 drives the half gear 54 to rotate. The half gear 54 alternately meshes with two racks 56, thereby causing the sliding frame 55 to move back and forth. The sliding frame 55 drives the push-pull rod 64 to move back and forth through the connecting rod 65, and the piston 63 moves back and forth, thereby drawing the penetrant, etc. from the storage cylinder 61 into the fixed cylinder 62, and then sending it into the fixed ring 66 through the discharge pipe 68. Finally, it is sprayed out through the ring-shaped nozzles 67. The push rod 1 pushes the mounting base 2 to move, so that the inner wall of the pipe can be continuously sprayed. The travel length is proportional to the spraying amount, so as to achieve the purpose of uniform spraying.

Claims

1. An automatic spray-type penetrant testing device, characterized in that: Include: Push rod (1); Mounting base (2), one end of the push rod (1) is fixedly mounted with mounting base (2); U-shaped seat (3), the mounting base (2) is fixedly installed around the U-shaped seat (3); Rollers (4) are rotatably installed inside the U-shaped seat (3); Transmission mechanism (5), the mounting base (2) is equipped with transmission mechanism (5), and the transmission mechanism (5) is connected to the rotating shaft of roller (4); The spraying mechanism (6) is mounted on the mounting base (2) and the push rod (1), and the spraying mechanism (6) is connected to the transmission mechanism (5).

2. The automatic spray-type penetrant testing device according to claim 1, characterized in that: The transmission mechanism (5) includes a drive gear (51), the shaft of one of the rollers (4) passes through the U-shaped seat (3) and is fixedly sleeved with the drive gear (51), the outer wall of the U-shaped seat (3) is rotatably sleeved with a transmission shaft (52), the driven gear (53) is fixedly sleeved on the transmission shaft (52), the driven gear (53) meshes with the drive gear (51), the mounting base (2) is slidably engaged with a sliding frame (55), the top and bottom of the inner cavity of the sliding frame (55) are fixedly installed with racks (56), the transmission shaft (52) extends into the inner cavity of the sliding frame (55) and is fixedly sleeved with a half gear (54), the half gear (54) meshes with the rack (56).

3. The automatic spray-type penetrant testing device according to claim 2, characterized in that: A rotating shaft is fixedly sleeved on the roller (4), and the rotating shaft rotates to sleeve the U-shaped seat (3). The bottom of the sliding frame (55) is a T-shaped structure, and the mounting base (2) has a groove that matches the bottom of the sliding frame (55). The sliding frame (55) is connected to the spraying mechanism (6).

4. The automatic spray-type penetrant testing device according to claim 3, characterized in that: The spraying mechanism (6) includes a storage cylinder (61) and a fixed cylinder (62). The storage cylinder (61) and the fixed cylinder (62) are fixedly sleeved on the mounting base (2). A piston (63) is slidably engaged inside the fixed cylinder (62). A push-pull rod (64) is fixedly sleeved on the piston (63). The two ends of the push-pull rod (64) pass through the two ends of the fixed cylinder (62) and are fixedly connected to one end of a connecting rod (65). The other end of the connecting rod (65) is fixedly connected to the end of a sliding frame (55). Both ends of the fixed cylinder (62) are connected to the storage cylinder (61) through suction pipes. A fixing ring (66) is fixedly installed on one end of the push rod (1) near the mounting base (2). Multiple nozzles (67) are fixedly installed on the fixing ring (66). Both ends of the fixed cylinder (62) are connected to the fixing ring (66) through discharge pipes (68).

5. An automatic spray-type penetrant testing device according to claim 4, characterized in that: The storage cylinder (61) is equipped with an inlet and outlet with valves, and both the suction pipe and the discharge pipe (68) are equipped with one-way valves.

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