Sealing performance test tool for stern tube cabin-penetrating sealing device

Abstract

The invention relates to the technical field of sealing performance test tools, in particular to a stern tube cabin-penetrating sealing device sealing performance test tool which comprises a detection tube connected to a stern tube in a sleeving mode, an annular groove is formed in the outer wall of one end of the detection tube, a sealing assembly is installed on the inner wall of the annular groove, and an air inlet is formed in the outer wall of the detection tube. An air inlet mechanism is mounted on the inner wall of the air inlet, and a mounting frame is fixedly connected to the outer wall of the detection pipe. The stern tube is sleeved with the detection tube, the two ends of the detection tube are sealed through the sealing assembly and the closing assembly, gas is conveyed into the detection tube in cooperation with the gas inlet mechanism, and therefore the sealing performance of the sealing device of the stern tube can be conveniently detected; and meanwhile, an air pressure sensor in the air inlet mechanism can conveniently detect the air pressure in the detection pipe in real time, whether the detection pipe leaks air or not is detected according to the air pressure detected by the air pressure sensor, and the problem that the sealing performance of an existing stern tube sealing device is inconvenient to detect is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing test tooling, in particular to a sealing test tooling for a stern tube penetration sealing device. Background Art

[0002] The stern tube is located at the stern of the hull, specifically in the stern tube at the stern of the hull. The stern tube is a component of the ship's shafting system, fixed to the stern of the hull. It is a pipe section that allows the stern shaft to pass through and is equipped with sealing and supporting devices. The main function of the stern tube is to enclose the propeller shaft and allow the propeller shaft to pass to the outside of the hull to ensure watertightness. In single-screw ships, the stern tube extends to the front end of the shaft hub on the propeller column and is welded to it; in twin-screw or multi-screw ships, the stern tube extends to the outside of the ship on both sides of the stern of the hull and is welded to the outer shell and shaft bracket or wrapped in a shaft sleeve. In addition, the installation process of the stern tube varies for different types of ships. The installation of the stern tube on large and medium-sized ships requires it to be inserted into the stern bulkhead hole and the stern column shaft hole and fed in by a hoist or trolley. Its watertightness must be ensured during installation. Epoxy resin casting is widely used for construction of small and medium-sized ships, and the stern tube is fastened by filling it with epoxy resin binder.

[0003] The existing sealing test tooling forms a confined space inside the hull and conducts a tightness test on the confined space. Leaks are detected by spraying foam water on the sealing device. However, in actual application, it is found that the confined space cannot be effectively sealed, which directly leads to the detection results of the test tooling. Summary of the Invention

[0004] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sealing test tool for a stern tube penetration sealing device, comprising a detection tube sleeved on the stern tube, an annular groove being provided on the outer wall of one end of the detection tube, and a sealing assembly being installed on the inner wall of the annular groove, an air inlet being provided on the outer wall of the detection tube, and an air intake mechanism being installed on the inner wall of the air inlet, the outer wall of the detection tube being fixedly connected to a mounting frame, and the outer wall of the mounting frame being provided with three equidistantly distributed threaded openings, the outer wall of the detection tube being fixedly connected to three equidistantly distributed circular connecting mechanisms, and the outer walls of the three connecting mechanisms being installed with the same closing assembly.

[0006] By adopting the above structure, the detection tube is sleeved on the outside of the stern tube, and the sealing component is used to seal one end of the detection tube. The connecting mechanism pulls the sealing component to seal the other end of the detection tube, thereby sealing the detection tube. Then, the air intake mechanism is used to deliver gas into the detection tube, and the sealing performance of the stern tube sealing device is detected by detecting the air pressure change in the detection tube. The sealing performance is detected by air tightness, which improves the accuracy of the test results of the test tooling.

[0007] Optionally, the sealing assembly includes a sliding ring slidably connected to the inner wall of the annular groove, and a sealing ring is fixedly connected to the bottom outer wall of the sliding ring, and a plurality of springs 1 at equal distances are fixedly connected to the top inner wall of the annular groove, and one end of the spring 1 is fixedly connected to the sliding ring.

[0008] By adopting the above structure, the annular groove is provided to facilitate sliding installation of the sliding ring. The sliding ring cooperates with the spring to seal one end of the detection tube through the sealing ring. The setting of the sealing ring improves the sealing performance.

[0009] Optionally, the closing assembly includes a closing sleeve, and the outer wall of the closing sleeve is fixedly connected to three connecting frames distributed at equal distances, and the outer wall of the bottom of the closing sleeve is fixedly connected to a rubber ring.

[0010] By adopting the above structure, the setting of the sealing sleeve facilitates the installation of the rubber ring, the setting of the rubber ring facilitates the sealing of the other end of the detection tube, and the setting of the connecting frame facilitates the installation of the sealing sleeve.

[0011] Optionally, the connecting mechanism includes a mounting sleeve fixedly connected to the outer wall of the detection tube, and a tensioning assembly is installed on the inner wall of the mounting sleeve, a screw is installed on the top outer wall of the tensioning assembly, and a nut is screwed on the outer wall of the screw, and the connecting frame is sleeved on the outer wall of the screw.

[0012] By adopting the above structure, the setting of the installation sleeve facilitates the installation of the tensioning assembly on the outer wall of the detection tube, and the cooperation between the screw and the nut facilitates the installation of the connecting frame, thereby improving the stability of the sealing sleeve.

[0013] Optionally, the tensioning assembly includes a mounting sleeve fixedly connected to the inner wall of the mounting sleeve, and the inner wall of the mounting sleeve is slidably connected to an armature, the outer wall of the armature is fixedly connected to a drive shaft, and the screw is fixedly connected to the drive shaft.

[0014] By adopting the above structure, the driving shaft can be conveniently installed by sliding through the setting of the mounting sleeve. When the driving shaft moves, it is convenient to directly drive the screw to move, and then cooperate with the screw to drive the closing sleeve to move. When the closing sleeve moves, the rubber ring is inserted into the detection tube, thereby improving the sealing performance of the closing sleeve to the detection tube.

[0015] Optionally, the bottom outer wall of the mounting sleeve is fixedly connected to a bottom cover, and the top outer wall of the bottom cover is fixedly connected to an electromagnet, and the same spring three is fixedly connected between the electromagnet and the armature.

[0016] By adopting the above structure, the electromagnet is energized to generate magnetic attraction to move the armature. When the armature moves, it directly cooperates with the drive shaft to compress the spring three. At this time, the sealing sleeve is directly pulled into the detection tube to seal it. When the electromagnet is de-energized, the spring three directly drives the sealing sleeve to reset.

[0017] Optionally, the air intake mechanism includes an air intake seat fixedly connected to the inner wall of the air inlet, and the air intake seat is connected to the detection tube, an air pressure sensor is installed on the inner wall of the air intake seat, an outer wall of the air intake seat is fixedly connected to an air pipe connected to the air intake seat, and one end of the air pipe is fixedly connected to a threaded tube.

[0018] By adopting the above structure, the threaded pipe is conveniently connected to the gas conveying pipeline, and then the gas pipe and the air inlet seat are used to convey gas into the detection tube, thereby increasing the gas pressure in the detection tube.

[0019] Optionally, a conical cavity is opened inside the trachea, and a sealing plug is slidably connected to the inner wall of the conical cavity.

[0020] By adopting the above structure, the opening of the tapered cavity in the trachea facilitates the sliding installation of the sealing plug, and the provision of the sealing plug facilitates the control of the on-off of the tapered cavity.

[0021] Optionally, the inner wall of the conical cavity is fixedly connected to a mounting rod, and a fixed sleeve is fixedly connected to the midpoint of the mounting rod, the outer wall of the mounting rod is slidably connected to two symmetrically arranged sliding sleeves, and the outer walls of the two sliding sleeves are rotatably connected to connecting plates, one end of the two connecting plates is rotatably connected to the sealing plug, and the outer wall of the mounting rod is sleeved with two symmetrically arranged springs 2, and spring 2 is located between the sliding sleeve and the fixed sleeve.

[0022] By adopting the above structure, the two springs drive the two sleeves to move apart. When the two sleeves move apart, they directly cooperate with the connecting plate to pull the sealing plug to seal the tapered cavity, thereby preventing gas from overflowing from the detection tube.

[0023] Optionally, a fixing frame is fixedly connected to the inner wall of the conical cavity, and an electric telescopic rod is fixedly connected to the inner wall of the fixing frame, and the output shaft of the electric telescopic rod is fixedly connected to the sealing plug.

[0024] By adopting the above structure, the electric telescopic rod is conveniently and directly driven to move the sealing plug. When the sealing plug moves toward the electric telescopic rod, the conical cavity is closed, and vice versa, the conical cavity is opened.

[0025] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses a detection tube to sleeve the stern tube, and then seals the two ends of the detection tube through a sealing component and a closing component. When the air intake mechanism is used to transport gas into the detection tube, it is convenient to perform a sealing test on the sealing device of the stern tube. At the same time, the air pressure sensor in the air intake mechanism facilitates real-time detection of the air pressure in the detection tube. The air pressure detected by the air pressure sensor is used to detect whether the detection tube has air leakage, thereby solving the problem of the inconvenience of detecting the sealing of the existing stern tube sealing device; (2) The present invention provides a tensioning mechanism on the detection tube. The tensioning mechanism facilitates the sealing of one end of the detection tube in conjunction with the sealing assembly. The sealing assembly contacts the hull, thereby facilitating the sealing of the other end of the detection tube. At the same time, the cooperation between the sealing ring and the rubber ring facilitates the improvement of the sealing performance of both ends of the detection tube. (3) The present invention arranges a sealing plug in the air pipe in the air intake mechanism. The arrangement of the sealing plug facilitates sealing the conical cavity in the air pipe, thereby preventing the gas in the detection tube from overflowing through the conical cavity. The coordination between the electromagnet and the armature in the tensioning assembly facilitates pulling the sealing sleeve to move and thereby driving the rubber ring to be inserted into the detection tube, thereby facilitating sealing one end of the detection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic structural diagram of the sealing assembly of the present invention; Figure 4 Schematic diagram of the closed component structure of the present invention Figure 5 It is a schematic structural diagram of the air intake mechanism of the present invention; Figure 6 This is a schematic diagram of the expanded structure of the tensioning assembly of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of a trachea according to embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the trachea according to the second embodiment of the present invention.

[0027] In the figure: 1. Detection tube; 2. Connecting mechanism; 3. Air intake mechanism; 4. Mounting frame; 5. Threaded port; 6. Sealing assembly; 7. Annular groove; 8. Spring one; 9. Sliding ring; 10. Sealing ring; 11. Closing sleeve; 12. Connecting frame; 13. Rubber ring; 14. Mounting sleeve; 15. Tensioning assembly; 16. Screw; 17. Nut; 18. Air intake seat; 19. Air pressure sensor; 20. Air pipe; 21. Threaded pipe; 22. Conical cavity; 23. Sealing plug; 24. Closing assembly; 25. Mounting rod; 26. Fixed sleeve; 27. Sliding sleeve; 28. Connecting plate; 29. ​​Spring two; 30. Fixed frame; 31. Electric telescopic rod; 32. Mounting sleeve; 33. Drive shaft; 34. Armature; 35. Bottom cover; 36. Electromagnet; 37. Spring three. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0029] Example 1 See also Figure 1-7 The sealing test tool for the stern tube penetration sealing device includes a detection tube 1 sleeved on the stern tube, an annular groove 7 is provided on the outer wall of one end of the detection tube 1, and a sealing component 6 is installed on the inner wall of the annular groove 7, an air inlet is provided on the outer wall of the detection tube 1, and an air intake mechanism 3 is installed on the inner wall of the air inlet, the outer wall of the detection tube 1 is fixedly connected to a mounting bracket 4, and the outer wall of the mounting bracket 4 is provided with three equidistantly distributed threaded openings 5, the outer wall of the detection tube 1 is fixedly connected to three equidistantly distributed circular connecting mechanisms 2, and the outer walls of the three connecting mechanisms 2 are installed with the same closing component 24.

[0030] When in use, the detection tube 1 is put on the outside of the stern tube, and the sealing component 6 is used to seal one end of the detection tube 1. The connecting mechanism 2 pulls the sealing component 24 to seal the other end of the detection tube 1, thereby sealing the detection tube 1. Then, the air intake mechanism 3 is used to transport gas into the detection tube 1. The sealing performance of the stern tube sealing device is detected by detecting the air pressure change in the detection tube 1. Detecting the sealing performance by air tightness improves the accuracy of the test results of the test tooling.

[0031] For details, please refer to Figure 2-3The sealing assembly 6 includes a sliding ring 9 that is slidably connected to the inner wall of the annular groove 7, and a sealing ring 10 is fixedly connected to the outer wall of the bottom of the sliding ring 9. A plurality of springs 8 with equal distances are fixedly connected to the inner wall of the top of the annular groove 7, and one end of the spring 8 is fixedly connected to the sliding ring 9. The opening of the annular groove 7 facilitates the sliding installation of the sliding ring 9. The sliding ring 9 cooperates with the spring 8 to seal one end of the detection tube 1 through the sealing ring 10. The setting of the sealing ring 10 improves the sealing performance.

[0032] For details, please refer to Figure 3 The closing assembly 24 includes a closing sleeve 11, and the outer wall of the closing sleeve 11 is fixedly connected to three equidistantly distributed connecting frames 12, and the outer wall of the bottom of the closing sleeve 11 is fixedly connected to a rubber ring 13. The setting of the closing sleeve 11 facilitates the installation of the rubber ring 13, and the setting of the rubber ring 13 facilitates the sealing of the other end of the detection tube 1. The setting of the connecting frame 12 facilitates the installation of the closing sleeve 11.

[0033] For details, please refer to Figure 4 The connecting mechanism 2 includes a mounting sleeve 14 fixedly connected to the outer wall of the detection tube 1, and a tensioning assembly 15 is installed on the inner wall of the mounting sleeve 14, a screw 16 is installed on the outer wall of the top of the tensioning assembly 15, and a nut 17 is screwed on the outer wall of the screw 16, and the connecting frame 12 is sleeved on the outer wall of the screw 16. The setting of the mounting sleeve 14 facilitates the installation of the tensioning assembly 15 on the outer wall of the detection tube 1, and the cooperation between the screw 16 and the nut 17 facilitates the installation of the connecting frame 12, thereby improving the stability of the closing sleeve 11.

[0034] For details, please refer to Figure 6 The tensioning assembly 15 includes a mounting sleeve 32 fixedly connected to the inner wall of the mounting sleeve 14, and the inner wall of the mounting sleeve 32 is slidably connected to the armature 34, the outer wall of the armature 34 is fixedly connected to the drive shaft 33, and the screw 16 is fixedly connected to the drive shaft 33. The arrangement of the mounting sleeve 14 facilitates the sliding installation of the drive shaft 33. When the drive shaft 33 moves, it is convenient to directly drive the screw 16 to move, and then cooperate with the screw 16 to drive the closing sleeve 11 to move. When the closing sleeve 11 moves, the rubber ring 13 is inserted into the detection tube 1, thereby improving the closing sleeve 1 To ensure the sealing of the detection tube 1, the bottom outer wall of the mounting sleeve 32 is fixedly connected with a bottom cover 35, and the top outer wall of the bottom cover 35 is fixedly connected with an electromagnet 36. A same spring three 37 is fixedly connected between the electromagnet 36 and the armature 34. When the electromagnet 36 is energized, magnetic attraction is generated to move the armature 34. When the armature 34 moves, it directly cooperates with the drive shaft 33 to compress the spring three 37. At this time, the closing sleeve 11 is directly pulled into the detection tube 1 to seal it. When the electromagnet 36 is powered off, the spring three 37 directly drives the closing sleeve 11 to reset.

[0035] For details, please refer to Figure 5 and Figure 7 The air intake mechanism 3 includes an air intake seat 18 fixedly connected to the inner wall of the air inlet, and the air intake seat 18 is connected to the detection tube 1. An air pressure sensor 19 is installed on the inner wall of the air intake seat 18. An air pipe 20 connected to the air intake seat 18 is fixedly connected to the outer wall of the air intake seat 18, and one end of the air pipe 20 is fixedly connected to a threaded pipe 21. The setting of the threaded pipe 21 is convenient for connecting with a gas conveying pipeline, and then the air pipe 20 and the air intake seat 18 are used to convey gas to the detection tube 1, so that the air pressure in the detection tube 1 increases. A conical cavity 22 is opened inside the air pipe 20, and a sealing plug 23 is slidably connected to the inner wall of the conical cavity 22. The opening of the conical cavity 22 in the air pipe 20 facilitates the sliding installation of the sealing plug 23, and the setting of the sealing plug 23 facilitates the control of the on and off of the conical cavity 22.

[0036] For details, please refer to Figure 7 The inner wall of the conical cavity 22 is fixedly connected with a mounting rod 25, and a fixed sleeve 26 is fixedly connected at the midpoint of the mounting rod 25. The outer wall of the mounting rod 25 is slidably connected with two symmetrically arranged sliding sleeves 27, and the outer walls of the two sliding sleeves 27 are rotatably connected with a connecting plate 28. One end of the two connecting plates 28 is rotatably connected to the sealing plug 23. The outer wall of the mounting rod 25 is sleeved with two symmetrically arranged springs 29, and the spring 29 is located between the sliding sleeve 27 and the fixed sleeve 26. The two sliding sleeves 27 are driven to move apart by the two springs 29. When the two sliding sleeves 27 move apart, they directly cooperate with the connecting plate 28 to pull the sealing plug 23 to close the conical cavity 22, thereby preventing gas from overflowing from the detection tube 1.

[0037] Based on the first embodiment, this embodiment introduces the specific structure of the air pipe 20 in the sealing test tool of the stern tube penetration sealing device, such as Figure 8 As shown, the inner wall of the conical cavity 22 is fixedly connected to a fixing frame 30, and the inner wall of the fixing frame 30 is fixedly connected to an electric telescopic rod 31. The output shaft of the electric telescopic rod 31 is fixedly connected to the sealing plug 23. The setting of the electric telescopic rod 31 facilitates the direct movement of the sealing plug 23. When the sealing plug 23 moves toward the electric telescopic rod 31, the conical cavity 22 is closed, and vice versa, the conical cavity 22 is opened.

[0038] Working principle: When in use, first fix the detection tube 1 on the hull through the threaded opening 5 on the mounting bracket 4 with the bolt, and tighten the bolt to squeeze the detection tube 1 against the sliding ring 9. During the squeezing process, the spring 18 is compressed. At the same time, the setting of the sealing ring 10 improves the sealing between the sliding ring 9 and the hull. When the stern tube passes through the detection tube 1, the closing sleeve 11 is put on the outer wall of the stern tube, and then the closing sleeve 11 is installed on the screw 16 with the connection bracket 12 and locked by the nut 17. When the electromagnet 36 in the tensioning assembly 15 is energized, it generates magnetic attraction to the armature 34. When the armature 34 moves toward the electromagnet 36, it directly compresses the spring 37. When the armature 34 moves, it directly pulls the closing sleeve 11 to move through the drive shaft 33. When the closing sleeve 11 moves, it directly drives the rubber ring 13 to be inserted into the detection tube 1, thereby facilitating the sealing of one end of the detection tube 1. The gas delivery pipe is connected to the threaded pipe 21, and cooperates with the air pipe 20 and the air inlet seat 18 to deliver gas to the detection tube 1, and cooperates with the air pressure sensor 19 to detect the air pressure in the detection tube 1. When the gas delivery is stopped, the sealing plug 23 will seal the conical cavity 22. When the air pressure in the detection tube 1 is abnormal, it indicates that the air tightness of the sealing component on the stern tube is poor, otherwise it indicates that the sealing component of the stern tube has good sealing. When the air pipe 20 delivers gas, the sealing plug 23 is directly opened by the air pressure, which facilitates the delivery of gas to the detection tube 1. When the gas delivery is stopped, the two springs 29 push the two sliding sleeves 27 away from each other, thereby facilitating the sealing plug 23 to close the conical cavity 22 through the connecting plate 28, or the electric telescopic rod 31 is set to facilitate the direct movement of the sealing plug 23. When the sealing plug 23 closes the conical cavity 22, the gas in the detection tube 1 is prevented from overflowing from the air pipe 20.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A stern tube penetration sealing device sealing test tool, comprising a detection tube (1) sleeved on the stern tube, characterized in that: An annular groove (7) is provided on the outer wall of one end of the detection tube (1), and a sealing component (6) is installed on the inner wall of the annular groove (7); an air inlet is provided on the outer wall of the detection tube (1), and an air inlet mechanism (3) is installed on the inner wall of the air inlet; the outer wall of the detection tube (1) is fixedly connected to a mounting frame (4), and the outer wall of the mounting frame (4) is provided with three threaded openings (5) distributed at equal distances; the outer wall of the detection tube (1) is fixedly connected to three connecting mechanisms (2) distributed at equal distances in a circular manner, and the outer walls of the three connecting mechanisms (2) are installed with the same sealing component (24).

2. The sealing test tool for the stern tube penetration sealing device according to claim 1, characterized in that: The sealing assembly (6) includes a sliding ring (9) slidably connected to the inner wall of the annular groove (7), and a sealing ring (10) is fixedly connected to the outer wall of the bottom of the sliding ring (9), and a plurality of springs (8) at equal distances are fixedly connected to the inner wall of the top of the annular groove (7), and one end of the spring (8) is fixedly connected to the sliding ring (9).

3. The sealing test tool for the stern tube penetration sealing device according to claim 1, characterized in that: The closure assembly (24) comprises a closure sleeve (11), wherein the outer wall of the closure sleeve (11) is fixedly connected to three equidistantly distributed connection frames (12), and the bottom outer wall of the closure sleeve (11) is fixedly connected to a rubber ring (13).

4. The sealing test tool for the stern tube penetration sealing device according to claim 3 is characterized by: The connecting mechanism (2) includes a mounting sleeve (14) fixedly connected to the outer wall of the detection tube (1), and a tensioning assembly (15) is installed on the inner wall of the mounting sleeve (14), a screw (16) is installed on the outer wall of the top of the tensioning assembly (15), and a nut (17) is screwed on the outer wall of the screw (16), and the connecting frame (12) is sleeved on the outer wall of the screw (16).

5. The sealing test tool for the stern tube penetration sealing device according to claim 4 is characterized in that: The tensioning assembly (15) includes a mounting sleeve (32) fixedly connected to the inner wall of the mounting sleeve (14), and the inner wall of the mounting sleeve (32) is slidably connected to an armature (34), the outer wall of the armature (34) is fixedly connected to a drive shaft (33), and the screw (16) is fixedly connected to the drive shaft (33).

6. The sealing test tool for the stern tube penetration sealing device according to claim 5, characterized in that: The bottom outer wall of the mounting sleeve (32) is fixedly connected to a bottom cover (35), and the top outer wall of the bottom cover (35) is fixedly connected to an electromagnet (36), and a spring (37) is fixedly connected between the electromagnet (36) and the armature (34).

7. The sealing test tool for the stern tube penetration sealing device according to claim 6, characterized in that: The air intake mechanism (3) includes an air intake seat (18) fixedly connected to the inner wall of the air inlet, and the air intake seat (18) is connected to the detection tube (1), the inner wall of the air intake seat (18) is installed with an air pressure sensor (19), the outer wall of the air intake seat (18) is fixedly connected to an air pipe (20) connected to the air intake seat (18), and one end of the air pipe (20) is fixedly connected to a threaded pipe (21).

8. The sealing test tool for the stern tube penetration sealing device according to claim 7, characterized in that: A conical cavity (22) is provided inside the air pipe (20), and a sealing plug (23) is slidably connected to the inner wall of the conical cavity (22).

9. The sealing test tool for the stern tube penetration sealing device according to claim 8, characterized in that: The inner wall of the conical cavity (22) is fixedly connected to a mounting rod (25), and a fixed sleeve (26) is fixedly connected to the midpoint of the mounting rod (25). The outer wall of the mounting rod (25) is slidably connected to two symmetrically arranged sliding sleeves (27), and the outer walls of the two sliding sleeves (27) are both rotatably connected to connecting plates (28), one end of each of the two connecting plates (28) is rotatably connected to the sealing plug (23), and the outer wall of the mounting rod (25) is sleeved with two symmetrically arranged springs (29), and the springs (29) are located between the sliding sleeves (27) and the fixed sleeve (26).

10. The sealing test tool for the stern tube penetration sealing device according to claim 8, characterized in that: The inner wall of the conical cavity (22) is fixedly connected to a fixing frame (30), and the inner wall of the fixing frame (30) is fixedly connected to an electric telescopic rod (31), and the output shaft of the electric telescopic rod (31) is fixedly connected to the sealing plug (23).

Images