Device for detecting airtightness of ship parts

Abstract

The utility model discloses a device for testing the air tightness of ship parts, which comprises a testing cylinder, the surface of the testing cylinder is respectively communicated with a water inlet pipe and a water outlet pipe, and the water inlet pipe is positioned above the water outlet pipe. An operator firstly connects a part with a connector, then fixes the part on the top of a disc, pulls a locking rod towards two sides, rotates a supporting ring and the disc by 180 degrees, and then loosens the locking rod, and at the moment, the locking rod aligned with a slot moves towards one side close to the connector; then, an operator starts an electric cylinder to contract until a disc is tightly attached to the top of the inspection barrel, the part is soaked in water, air is injected into the part through an air supply pipe at the moment, and whether bubbles emerge on the part or not is observed through the transparent side wall of the inspection barrel; therefore, whether a position with insufficient sealing performance exists or not is judged and an air leakage point is found, and the device has the advantage of being convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology for ship parts, specifically a device for testing the airtightness of ship parts. Background Technology

[0002] Humans have a long history of shipbuilding, and with the development of science and technology and the advancement of shipbuilding techniques, shipbuilding has become one of the world's most important heavy industries. Ships are composed of thousands of parts and are related to almost every industrial sector.

[0003] The utility model patent with publication number CN215004130U discloses a device for inspecting the airtightness of ship parts. It solves the problems of current testing methods, which are generally manual and involve internal water injection to test the seal, resulting in complicated operation, low testing efficiency, and unfavorable conditions for large-scale production. The device immerses the part to be tested in water and injects high-pressure gas into the part, thereby judging whether the seal is good based on whether bubbles are produced. This not only completes the inspection work quickly but also accurately finds the location of the leak, improving the accuracy of the inspection. The structure of this method is simple. However, in actual use, after the operator flips the fixing plate, it is impossible to position the fixing plate and the connector, which makes it inconvenient for the operator to connect and fix the parts, thus making it inconvenient for the operator to use. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a device for testing the airtightness of ship parts, which has the advantage of being easy to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for inspecting the airtightness of ship parts, comprising an inspection cylinder, the surface of which is respectively connected to an inlet pipe and an outlet pipe, the inlet pipe being located above the outlet pipe, a turntable fixedly connected to the bottom of the inspection cylinder, a rotating assembly disposed below the turntable, two support blocks fixedly connected to the surface of the turntable, an electric cylinder fixedly connected to the top of the support blocks, a limit ring fixedly connected to the output end of the electric cylinder, a rotating shaft rotatably connected inside the limit ring, and the surface of the rotating shaft... A support ring is fixedly connected. An adjusting frame is fixedly connected to the side of the rotating shaft away from the support ring. Locking rods are slidably connected to the top and bottom of the adjusting frame. Tension springs are fixedly connected to the top and bottom of the side of the adjusting frame away from the support ring. The end of the tension spring away from the adjusting frame is fixedly connected to the locking rod. A slot is provided on the surface of the electric cylinder output end. The locking rod is inserted into the slot. A disc is rotatably connected inside the support ring. A connector is fixedly connected inside the disc. The bottom of the connector extends to the bottom of the disc. An auxiliary positioning component is provided on the top of the disc.

[0006] In a preferred embodiment of this invention, the rotating assembly includes a base plate disposed below the inspection cylinder, a cylinder fixedly connected to the top of the base plate, the cylinder being rotatably connected to the turntable, a motor fixedly connected to the bottom of the inner wall of the cylinder, and the output end of the motor being fixedly connected to the turntable.

[0007] As a preferred embodiment of this utility model, the auxiliary positioning component includes a fixed plate fixedly connected to both sides of the top of the disc. The front and rear sides of the top of the disc are provided with sliding grooves, and the two sides inside the sliding grooves are slidably connected with clamps. A compression spring is fixedly connected to the end of the clamp away from the connector. The end of the compression spring away from the clamp is fixedly connected to the fixed plate. The surfaces of the compression spring and the tension spring are coated with anti-rust paint.

[0008] As a preferred embodiment of this utility model, sleeves are fixedly connected to all four sides of the bottom of the base plate, and threaded rods are threadedly connected to the inside of the sleeves, with a support pad fixedly connected to the bottom of the threaded rods.

[0009] As a preferred embodiment of this invention, a supplementary lighting strip is fixedly connected to the inner wall of the inspection cylinder.

[0010] As a preferred embodiment of this utility model, an anti-slip pad is fixedly connected to the side of the clamp away from the fixed plate, the surface of the anti-slip pad is provided with anti-slip texture, and the anti-slip pad is made of rubber material.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model involves the operator first connecting the part to the connector, then fixing the part to the top of the disc. The operator then pulls the locking rod to both sides, rotates the support ring and the disc 180 degrees, and then releases the locking rod. At this point, the locking rod aligned with the slot moves towards the side closer to the connector until it is inserted into the slot. The operator then activates the electric cylinder to retract until the disc is tightly pressed against the top of the inspection cylinder, immersing the part in water. Air is then injected into the part through the air supply pipe, and the part is observed through the transparent side wall of the inspection cylinder to determine if there are any air bubbles emerging, thus identifying any areas with insufficient sealing and locating leaks. This device is easy to use.

[0013] 2. With the addition of a rotating component, the operator can start the motor to rotate the turntable, which in turn rotates the inspection cylinder. This eliminates the need for the operator to walk around the inspection cylinder to observe the sealing condition of each part inside, making it easier for the operator to use. The motor in this device rotates in one cycle during operation, preventing the turntable from rotating continuously in one direction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the cylindrical structure of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point B.

[0018] In the diagram: 1. Inspection cylinder; 2. Inlet pipe; 3. Outlet pipe; 4. Turntable; 5. Support block; 6. Electric cylinder; 7. Limiting ring; 8. Rotating shaft; 9. Support ring; 10. Disc; 11. Adjusting frame; 12. Locking rod; 13. Tension spring; 14. Connector; 15. Rotating assembly; 16. Auxiliary positioning assembly; 17. Base plate; 18. Cylinder; 19. Motor; 20. Fixing plate; 21. Clamping plate; 22. Compression spring; 23. Anti-slip pad; 24. Supplementary light strip; 25. Sleeve; 26. Threaded rod; 27. Support pad. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 4As shown, a device for inspecting the airtightness of ship parts includes an inspection cylinder 1. An inlet pipe 2 and an outlet pipe 3 are respectively connected to the surface of the inspection cylinder 1. The inlet pipe 2 is located above the outlet pipe 3. A turntable 4 is fixedly connected to the bottom of the inspection cylinder 1. A rotating assembly 15 is arranged below the turntable 4. Support blocks 5 are fixedly connected to the surface of the turntable 4. There are two support blocks 5. An electric cylinder 6 is fixedly connected to the top of the support blocks 5. A limit ring 7 is fixedly connected to the output end of the electric cylinder 6. A rotating shaft 8 is rotatably connected inside the limit ring 7. A support ring 9 is fixedly connected to the surface of the rotating shaft 8, and the rotating shaft 8 is located away from the support ring. An adjusting frame 11 is fixedly connected to one side of the support ring 9. A locking rod 12 is slidably connected to the top and bottom of the adjusting frame 11. A tension spring 13 is fixedly connected to the top and bottom of the side of the adjusting frame 11 away from the support ring 9. The end of the tension spring 13 away from the adjusting frame 11 is fixedly connected to the locking rod 12. A slot is provided on the surface of the output end of the electric cylinder 6. The locking rod 12 is inserted into the slot. A disc 10 is rotatably connected inside the support ring 9. A connector 14 is fixedly connected inside the disc 10. The bottom of the connector 14 extends to the bottom of the disc 10. An auxiliary positioning component 16 is provided on the top of the disc 10.

[0021] refer to Figure 1 , Figure 2 and Figure 4 The rotating assembly 15 includes a base plate 17 disposed below the inspection cylinder 1. A cylinder 18 is fixedly connected to the top of the base plate 17. The cylinder 18 is rotatably connected to the turntable 4. A motor 19 is fixedly connected to the bottom of the inner wall of the cylinder 18. The output end of the motor 19 is fixedly connected to the turntable 4.

[0022] As a technical optimization of this utility model, by setting the rotating component 15, the operator can start the motor 19 to rotate and drive the turntable 4 to rotate, thereby driving the inspection cylinder 1 to rotate. This eliminates the need for the operator to walk around the inspection cylinder 1 to observe the sealing condition of each part inside the inspection cylinder 1, making it easier for the operator to use. When the motor 19 in this device is running, it rotates in one round trip, preventing the turntable 4 from rotating continuously in one direction.

[0023] refer to Figure 1 and Figure 3 The auxiliary positioning component 16 includes a fixing plate 20 fixedly connected to both sides of the top of the disc 10. The front and rear sides of the top of the disc 10 are provided with sliding grooves, and the two sides inside the sliding grooves are slidably connected with clamping plates 21. A compression spring 22 is fixedly connected to the end of the clamping plate 21 away from the connector 14. The end of the compression spring 22 away from the clamping plate 21 is fixedly connected to the fixing plate 20. The surfaces of the compression spring 22 and the tension spring 13 are both coated with anti-rust paint.

[0024] As a technical optimization of this utility model, by setting the auxiliary positioning component 16, the operator can pull the clamping plates 21 to both sides, then connect the part to the connector 14, place the part between the two clamping plates 21, and then the operator releases the clamping plates 21. Under the action of the compression spring 22, the clamping plates 21 on both sides move closer to each other, thereby clamping the part and thus assisting in positioning the part.

[0025] refer to Figure 1 and Figure 4 A sleeve 25 is fixedly connected to all four sides of the bottom of the base plate 17. A threaded rod 26 is threadedly connected inside the sleeve 25. A support pad 27 is fixedly connected to the bottom of the threaded rod 26.

[0026] As a technical optimization of this utility model, by setting up the sleeve 25, the threaded rod 26 and the support pad 27, the operator can rotate the support pad 27 to rotate, thereby moving the support pad 27 up or down, and thus adjusting the horizontal state or height of the base plate 17.

[0027] refer to Figure 1 The inner wall of the inspection cylinder 1 is fixedly connected with a supplementary light strip 24.

[0028] As a technical optimization of this utility model, the brightness inside the inspection cylinder 1 can be improved by setting the supplementary light strip 24, allowing the inspector to better observe the bubbles that may appear on the surface of the parts, and further improve the inspection accuracy. The supplementary light strip 24 in this device has a waterproof function. The supplementary light strip 24 is a common technology on the market, and will not be described in detail in this application.

[0029] refer to Figure 1 and Figure 3 An anti-slip pad 23 is fixedly connected to the side of the clamping plate 21 away from the fixing plate 20. The surface of the anti-slip pad 23 is provided with anti-slip texture and the anti-slip pad 23 is made of rubber.

[0030] As a technical optimization of this utility model, by setting the anti-slip pad 23, the friction between the clamping plate 21 and the part can be increased, thereby improving the effect of auxiliary positioning of the part.

[0031] The working principle and usage process of this utility model: During use, the side wall of the inspection cylinder 1 in this device is made of transparent plastic. The bottom of the connector 14 in this device is connected to an air supply pipe, such as... Figure 1As shown, at this time, the top of connector 14 is connected to the part, the bottom of connector 14 is connected to the air supply pipe, and the air supply pipe is connected to an external high-pressure gas cylinder. Connector 14 is a rubber sleeve with elasticity and sealing and waterproof performance, so as to match the size of the opening end of parts of different sizes, fix them and seal them at the same time, so that the inspection accuracy will not be affected by air or water leakage during the inspection process. The connector 14, air supply pipe and high-pressure gas cylinder mentioned above are similar in principle to the connector, air supply pipe and high-pressure gas cylinder mentioned in the utility model patent of CN215004130U, which is published (announcement) number: a device for inspecting the airtightness of ship parts, and achieve the same effect. This application will not elaborate further.

[0032] In use, the operator first connects the part to the connector 14, then fixes the part to the top of the disc 10. The operator then pulls the locking lever 12 to both sides until it separates from the slot, thus releasing the lock on the rotating shaft 8, support ring 9, and disc 10. The operator then rotates the support ring 9 and disc 10 180 degrees. After releasing the locking lever 12, under the action of the tension spring 13, the locking lever 12, now aligned with the slot, moves towards the connector 14 until it inserts into the slot, thereby locking the rotating shaft 8, support ring 9, and disc 10. Lock the position of the disc 10, and then the operator starts the electric cylinder 6 to retract, which in turn drives the limit ring 7, the rotating shaft 8, the support ring 9 and the disc 10 to move down. The water inlet pipe 2 is connected to the external faucet, and then an appropriate amount of water is injected into the test cylinder 1. The disc 10 moves down, which drives the connector 14 and the parts to move down until the disc 10 is in close contact with the top of the test cylinder 1, so that the parts are immersed in water. At this time, air is injected into the parts using the air supply pipe. Observe whether there are bubbles coming out of the parts through the side wall of the transparent test cylinder 1, so as to determine whether there is a position with insufficient sealing and find the air leakage point.

[0033] When the inlet pipe 2, outlet pipe 3, or supplementary lighting strip 24 obstructs part of the part, the operator can rotate the disc 10 at an appropriate angle. The disc 10 rotates around its own axis, causing relative rotation between the disc 10 and the support ring 9. The rotation of the disc 10 drives the connector 14 and the part to rotate, which makes it easier for the operator to observe the surface of the part in detail, thereby improving the detection effect. The outlet pipe 3 in this device is connected to a drain valve (not shown). When the water in the test cylinder 1 is turbid, the operator opens the drain valve to drain the water in the test cylinder 1 and replace the water in the test cylinder 1.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for inspecting the airtightness of ship parts, comprising an inspection cylinder (1), characterized in that: The surface of the test cylinder (1) is connected to an inlet pipe (2) and an outlet pipe (3), respectively. The inlet pipe (2) is located above the outlet pipe (3). A turntable (4) is fixedly connected to the bottom of the test cylinder (1). A rotating assembly (15) is provided below the turntable (4). A support block (5) is fixedly connected to the surface of the turntable (4). An electric cylinder (6) is fixedly connected to the top of the support block (5). A limit ring (7) is fixedly connected to the output end of the electric cylinder (6). A rotating shaft (8) is rotatably connected inside the limit ring (7). A support ring (9) is fixedly connected to the surface of the rotating shaft (8). An adjusting frame (11) is fixedly connected to the side of the rotating shaft (8) away from the support ring (9). The top and bottom of the adjusting frame (11) are slidably connected with locking rods (12). The top and bottom of the adjusting frame (11) away from the support ring (9) are fixedly connected with tension springs (13). The end of the tension spring (13) away from the adjusting frame (11) is fixedly connected to the locking rod (12). The surface of the output end of the electric cylinder (6) is provided with a slot. The locking rod (12) is inserted into the slot. The inside of the support ring (9) is rotatably connected with a disc (10). The inside of the disc (10) is fixedly connected with a connector (14). The bottom of the connector (14) extends to the bottom of the disc (10). The top of the disc (10) is provided with an auxiliary positioning component (16).

2. The device for testing the airtightness of ship parts according to claim 1, characterized in that: The rotating assembly (15) includes a base plate (17) disposed below the inspection cylinder (1), a cylinder (18) is fixedly connected to the top of the base plate (17), the cylinder (18) is rotatably connected to the turntable (4), a motor (19) is fixedly connected to the bottom of the inner wall of the cylinder (18), and the output end of the motor (19) is fixedly connected to the turntable (4).

3. The device for testing the airtightness of ship parts according to claim 1, characterized in that: The auxiliary positioning component (16) includes a fixing plate (20) fixedly connected to both sides of the top of the disc (10). The front and rear sides of the top of the disc (10) are provided with sliding grooves, and the two sides inside the sliding grooves are slidably connected with clamps (21). A compression spring (22) is fixedly connected to one end of the clamp (21) away from the connector (14). The end of the compression spring (22) away from the clamp (21) is fixedly connected to the fixing plate (20). The surfaces of the compression spring (22) and the tension spring (13) are both sprayed with anti-rust paint.

4. The device for testing the airtightness of ship parts according to claim 2, characterized in that: Sleeves (25) are fixedly connected to the bottom of the base plate (17) around its perimeter. A threaded rod (26) is threadedly connected to the inside of the sleeve (25). A support pad (27) is fixedly connected to the bottom of the threaded rod (26).

5. The device for testing the airtightness of ship parts according to claim 1, characterized in that: The inner wall of the inspection cylinder (1) is fixedly connected with a supplementary light strip (24).

6. The device for testing the airtightness of ship parts according to claim 3, characterized in that: An anti-slip pad (23) is fixedly connected to the side of the clamp (21) away from the fixing plate (20), and the surface of the anti-slip pad (23) is provided with anti-slip texture.

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