Penetrating agent permeation accelerating device

Abstract

The utility model discloses a penetrant penetration accelerating device which comprises a supporting device, the rear end of the supporting device is sleeved with a displacement device in a threaded mode, a sealing device is fixedly installed at the front end of the bottom of the displacement device, and a metal pipe is placed at the front end in the supporting device. The sealing device comprises a sealing rubber plug, a top cover, hydraulic air cylinders and through holes, the through holes are formed in the two sides of the top cover, the hydraulic air cylinders are fixedly installed on the two sides of the top, close to the through holes, of the top cover, and the sealing rubber plug is fixedly installed at the ends, close to the through holes, of the hydraulic air cylinders. The displacement device comprises a gas collection cavity, a plunger, a displacement support, a reset spring and a supporting circular plate, the supporting circular plate is fixedly installed at the side end of the displacement support, and the plunger is fixedly installed in the center of the bottom end of the supporting circular plate. Through the arrangement of the sealing device, the displacement device and the supporting device, the purpose of accelerating permeation in the tubular workpiece is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a penetrant accelerated penetration device. Background Technique

[0002] Penetrant testing technology is a non-destructive testing technology based on the principle of capillary action, mainly used to detect surface opening defects of non-porous metal or non-metal parts. During testing, a penetrant solution containing a fluorescent dye or a coloring dye is applied to the surface of the part. Due to capillary action, the penetrant seeps into the small surface opening defects. The excess penetrant adhering to the workpiece surface is removed. After drying, a developer is applied. The penetrant in the defects is re-adsorbed onto the part surface under the action of capillary phenomenon, forming an enlarged defect display, and thus the morphology and distribution state of the defects can be detected.

[0003] For example, a penetrant testing device with the Chinese patent publication number CN217765990U includes a testing box body. A diversion groove is opened at the bottom of the inner wall of the testing box body. A bearing testing table is fixedly arranged in the middle of the diversion groove. An acoustic wave emitter is fixedly installed inside the bearing testing table. A spraying ring pipe facing the bearing testing table is fixedly arranged at the top end of the inner wall of the testing box body. A plurality of uniformly distributed spraying heads are fixedly installed at the bottom of the spraying ring pipe. A penetrant storage tank is fixedly installed at the top end of the testing box body.

[0004] When the penetrant testing device in the above patent is in use, it can only achieve the purpose of uniform spraying and acceleration. When the existing tubular workpieces are subjected to penetrant testing, since they need to be placed for a period of time to wait for the liquid to penetrate, a large amount of time is often consumed during testing, and the tubular workpieces cannot be tested again in a short time. Therefore, an equipment is needed to improve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a penetrant accelerated penetration device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a penetrant accelerated penetration device, including a support device, a displacement device is threadedly sleeved at the rear end of the support device, a closing device is fixedly installed at the front end of the bottom of the displacement device, a metal tube is placed at the front end inside the support device. The closing device includes a sealing rubber plug, a top cover, a hydraulic cylinder and through holes. The through holes are opened on both sides of the top cover. The hydraulic cylinder is fixedly installed on both sides of the top of the top cover close to the through holes. The sealing rubber plug is fixedly installed at one end of the hydraulic cylinder close to the through holes.

[0007] Preferably, the displacement device includes a gas collecting cavity, a plunger, a displacement bracket, a return spring, and a supporting circular plate. The supporting circular plate is fixedly installed at the side end of the displacement bracket. The plunger is fixedly installed at the center of the bottom end of the supporting circular plate. The gas collecting cavity is slidably sleeved on the outer circle of the plunger. The return spring is fixedly installed between the gas collecting cavity and the supporting circular plate.

[0008] Preferably, the supporting device includes a supporting base, a jack, a driving motor, a threaded rod, and a vertical rod. The jack is opened at the front end of the top of the supporting base. The vertical rods are symmetrically and fixedly installed at the rear end of the top of the supporting base. The driving motor is fixedly installed at the bottom end of the rear of the supporting base. The threaded rod is fixedly installed at the center of the top end of the driving motor.

[0009] Preferably, the top cover is fixedly installed at the bottom end of the gas collecting cavity. The displacement bracket is threadedly sleeved on the threaded rod.

[0010] Preferably, plastic washers are fixedly installed at the inner bottom end of the jack and the outer bottom end of the top cover.

[0011] Preferably, a circular hole is opened at the center of the top cover, and the through hole communicates with the circular hole.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When the device is in use, the top cover can be inserted into the inside of the metal pipe, so that it can communicate with the inside of the metal pipe. At the same time, when the displacement bracket continuously moves downward, it can drive the plunger to move inside the gas collecting cavity, thereby pressurizing the inside of the metal pipe, so that the penetrant attached to the inner wall of the metal pipe can quickly enter the inner wall of the metal pipe. And, by starting the hydraulic cylinder to drive the sealing rubber plug to move out of the through hole, the gas inside the metal pipe can be discharged outward, facilitating the outward movement of the top cover and completing the work of pressurizing the inside of the metal pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0015] Figure 2 is a partially sectional view of the closing device of the present utility model;

[0016] Figure 3 is a partially sectional view of the displacement device of the present utility model;

[0017] Figure 4 is a schematic diagram of the structure of the supporting device of the present utility model.

[0018] In the figure: 1 - closing device, 2 - displacement device, 3 - supporting device, 4 - metal pipe, 5 - airtight rubber stopper, 6 - top cover, 7 - hydraulic cylinder, 8 - through hole, 9 - air collecting cavity, 10 - plunger, 11 - displacement bracket, 12 - return spring, 13 - supporting circular plate, 14 - supporting base, 15 - jack, 16 - driving motor, 17 - threaded rod, 18 - vertical rod. Specific implementation manner

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , an embodiment provided by the present invention: a penetrant accelerating penetration device, including a supporting device 3, a displacement device 2 is threadedly sleeved at the rear end of the supporting device 3, a closing device 1 is fixedly installed at the front end of the bottom of the displacement device 2, a metal pipe 4 is placed at the front end inside the supporting device 3, the closing device 1 includes an airtight rubber stopper 5, a top cover 6, a hydraulic cylinder 7 and a through hole 8, the through hole 8 is opened on both sides of the top cover 6, the hydraulic cylinder 7 is fixedly installed on both sides of the top of the top cover 6 close to the through hole 8, and the airtight rubber stopper 5 is fixedly installed at one end of the hydraulic cylinder 7 close to the through hole 8.

[0021] The displacement device 2 includes an air collecting cavity 9, a plunger 10, a displacement bracket 11, a return spring 12 and a supporting circular plate 13, the supporting circular plate 13 is fixedly installed at the side end of the displacement bracket 11, the plunger 10 is fixedly installed at the center of the bottom end of the supporting circular plate 13, the air collecting cavity 9 is slidably sleeved on the outer ring of the plunger 10, and the return spring 12 is fixedly installed between the air collecting cavity 9 and the supporting circular plate 13. Through the setting of the return spring 12, the air collecting cavity 9 can be allowed to quickly reset.

[0022] The supporting device 3 includes a supporting base 14, a jack 15, a driving motor 16, a threaded rod 17 and a vertical rod 18, the jack 15 is opened at the front end of the top of the supporting base 14, the vertical rods 18 are symmetrically fixedly installed at the rear end of the top of the supporting base 14, the driving motor 16 is fixedly installed at the bottom of the rear end of the supporting base 14, and the threaded rod 17 is fixedly installed at the center of the top end of the driving motor 16. When the threaded rod 17 rotates forward and backward, the displacement bracket 11 can be driven to move up and down.

[0023] The top cover 6 is fixedly installed at the bottom end of the air collecting cavity 9, and the displacement bracket 11 is threadedly sleeved on the threaded rod 17, which can drive the displacement bracket 11 to move.

[0024] Plastic gaskets are fixedly installed at the inner bottom end of the jack 15 and the outer bottom circle of the top cover 6. When the top cover 6 presses the metal tube 4 into contact with the inside of the jack 15, a sealed space can be formed inside the metal tube 4.

[0025] A circular hole is opened at the center inside the top cover 6, and the through hole 8 communicates with the circular hole, which is convenient for pressure relief inside the metal tube 4.

[0026] Working principle: When in use, first place the metal tube 4 into the inside of the jack 15, then spray the external penetrant onto the inner surface of the inner circle of the metal tube 4. Start the drive motor 16 to drive the threaded rod 17 to rotate counterclockwise. Since the displacement bracket 11 is threadedly sleeved on the threaded rod 17, when the threaded rod 17 rotates, it can drive the displacement bracket 11 to move downward. When the displacement bracket 11 drives the top cover 6 to insert into the top end inside of the metal tube 4, it can drive the plastic gaskets at the bottom end of the top cover 6 and the inner bottom end of the jack 15 to fit with the top and bottom ends of the metal tube 4, thereby closing the inside of the metal tube 4. Subsequently, when the displacement bracket 11 continues to move downward, it can drive the support circular plate 13 to press the plunger 10 to move downward inside the gas collection cavity 9. Thus, the gas inside the gas collection cavity 9 can enter the inside of the metal tube 4 through the top cover 6, pressurizing the inside of the metal tube 4, causing the penetrant attached to the inner wall of the metal tube 4 to penetrate toward the outer wall of the metal tube 4 at an accelerated rate. When the internal penetrant inspection of the metal tube 4 is completed, the hydraulic cylinder 7 can be started to drive the sealed rubber plug 5 to move out from the inside of the through hole 8. Thus, the gas inside the metal tube 4 can flow outwards, completing the work of pressure relief inside the metal tube 4. Subsequently, the drive motor 16 can be started again to drive the threaded rod 17 to rotate clockwise. Thus, the displacement bracket 11 can drive the top cover 6 to move upward until the top cover 6 is withdrawn from the inside of the metal tube 4 and the top cover 6 is separated from the metal tube 4. At this time, the elasticity of the return spring 12 will drive the gas collection cavity 9 to reset, completing the reset work of the gas collection cavity 9. And, the hydraulic cylinder 7 can be started to drive the sealed rubber plug 5 to insert into the inside of the through hole 8 again, so that the inside of the through hole 8 can be closed, facilitating the top cover 6 to cooperate and dock with the metal tube 4 again. When this device is in use, through holes are symmetrically opened inside one end of the displacement bracket 11 far from the support circular plate 13, and the through holes are slidably sleeved on the vertical rod 18, so as to ensure that the displacement bracket 11 moves up and down in a straight line to complete the work.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An osmotic agent accelerating osmosis device, comprising a support device (3), a displacement device (2) is threadedly sleeved at the rear end of the support device (3), a sealing device (1) is fixedly installed at the front end of the bottom of the displacement device (2), and a metal tube (4) is placed at the front end inside the support device (3), characterized in that: The closing device (1) includes a sealing rubber plug (5), a top cover (6), a hydraulic cylinder (7) and a through hole (8). The through hole (8) is opened on both sides of the top cover (6). The hydraulic cylinder (7) is fixedly installed on both sides of the top of the top cover (6) close to the through hole (8). The sealing rubber plug (5) is fixedly installed at one end of the hydraulic cylinder (7) close to the through hole (8).

2. The accelerating penetration device for penetrant according to claim 1, characterized in that: The displacement device (2) includes a gas collection cavity (9), a plunger (10), a displacement bracket (11), a return spring (12) and a support circular plate (13). The support circular plate (13) is fixedly installed at the side end of the displacement bracket (11). The plunger (10) is fixedly installed at the center of the bottom end of the support circular plate (13). The gas collection cavity (9) is slidably sleeved on the outer circle of the plunger (10). The return spring (12) is fixedly installed between the gas collection cavity (9) and the support circular plate (13).

3. An accelerating penetration device for penetrant according to claim 2, characterized in that: The support device (3) includes a support base (14), a jack (15), a drive motor (16), a threaded rod (17) and a vertical rod (18). The jack (15) is opened at the front end of the top of the support base (14). The vertical rods (18) are symmetrically and fixedly installed at the rear end of the top of the support base (14). The drive motor (16) is fixedly installed at the bottom of the rear end of the support base (14). The threaded rod (17) is fixedly installed at the center of the top end of the drive motor (16).

4. An accelerating penetration device for penetrant according to claim 3, characterized in that: The top cover (6) is fixedly installed at the bottom end of the gas collection cavity (9). The displacement bracket (11) is threadedly sleeved on the threaded rod (17).

5. An accelerating penetration device for penetrant according to claim 4, characterized in that: Plastic gaskets are fixedly installed at the inner bottom end of the jack (15) and the outer bottom end of the top cover (6).

6. The accelerating penetration device for penetrant according to claim 5, wherein: A circular hole is opened at the center of the inside of the top cover (6), and the through hole (8) communicates with the circular hole.

Images