Underwater pipe end plug cleaning device

Abstract

The present invention discloses an underwater catheter end plug cleaning device, comprising a support platform, a support frame arranged on the support platform, a guide cone sleeve arranged on the support frame, a rotating mechanism, a ventilation and profiling grinding assembly, and a driving mechanism; the rotating mechanism is provided with an airflow channel for introducing gas, which drives the ventilation and profiling grinding assembly to move into the inner hole of the catheter end plug after the gas enters the airflow channel, and the ventilation and profiling grinding assembly fits with the wall surface of the inner hole of the catheter end plug after ventilation and expansion; the ventilation and profiling grinding assembly can rotate with the rotating mechanism to grind and clean the inner hole of the catheter end plug; a driving structure is provided on the connection path between the rotating mechanism and the driving mechanism, and the driving structure is used to drive the rotating mechanism to move relative to the support platform, thereby driving the ventilation and profiling grinding assembly to move within the inner hole of the catheter end plug. The present invention realizes underwater grinding and cleaning of the inner hole of the catheter end plug, so that the diameter and precision of the inner hole of the catheter end plug meet the requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater cleaning, in particular to an underwater conduit end plug cleaning device. Background Art

[0002] Due to the complexity of liquid environments like underwater, the surfaces of various facilities operating in these environments are susceptible to corrosion from various substances in the water, causing debris to adhere to them. This is especially true for equipment components with small pores or internal channels. Hole cleaning in liquid environments like underwater is relatively complex, especially in the underwater environment of nuclear power plants. Manual operation is difficult and can have adverse effects on workers. Therefore, there is an urgent need for a cleaning device that can be mounted on a mobile platform for underwater cleaning.

[0003] Cleaning devices are primarily used to remove burrs and impurities, ensuring that the internal diameter and precision of components such as catheter end plugs meet assembly requirements. The effectiveness of burr removal and impurity removal also plays a crucial role in the effective execution of related work. Therefore, the selection of cleaning methods for cleaning devices is fundamental to ensuring cleanliness.

[0004] Currently, there are two main methods for cleaning pipe inner walls or bores: rigid contact treatment and sandblasting. Rigid contact treatment primarily involves grinding the inner wall or bore of the pipe using abrasive hardware such as abrasive needles. This method has poor contouring capabilities and is difficult to achieve high-precision cleaning. Furthermore, it is not suitable for use in flammable and explosive environments or underwater environments. Sandblasting also leaves excessive dirt, which reacts easily with acidic solutions and contaminates the acidic liquid environment. This is particularly true in nuclear power plants, where the underwater environment is typically composed of boric acid solutions. Sandblasting can cause boric acid contamination, impacting the proper use of the underwater environment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an underwater catheter end plug cleaning device which can be carried on a mobile platform underwater and can grind and clean the inner hole of the catheter end plug by ventilation and profiling.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: providing an underwater catheter end plug cleaning device, comprising a support platform, a support frame arranged on the support platform, a guide cone sleeve arranged on the support frame and used to align and position with the catheter end plug, a rotating mechanism arranged on the support platform and opposite to the guide cone sleeve, a ventilation and contour grinding assembly arranged on the rotating mechanism and inserted into the guide cone sleeve, and a driving mechanism connected to and driving the rotating mechanism to rotate relative to the support platform;

[0007] The rotating mechanism is provided with an air flow channel connected to the ventilation and profiling grinding assembly, the air flow channel is used to pass gas, and after the gas enters the air flow channel, the ventilation and profiling grinding assembly is driven to move into the inner hole of the catheter end plug. After the ventilation and profiling grinding assembly is expanded, it fits with the wall surface of the inner hole of the catheter end plug; and the ventilation and profiling grinding assembly can rotate with the rotating mechanism to grind and clean the inner hole of the catheter end plug.

[0008] A driving channel for introducing gas is provided on the connection path between the rotating mechanism and the driving mechanism. After the gas enters the driving channel, it is used to drive the rotating mechanism to move relative to the support platform in the direction close to the guide cone sleeve, so as to drive the ventilation contour grinding assembly to move in the inner hole of the catheter end plug.

[0009] Preferably, the underwater conduit end plug cleaning device also includes a first tensioning spring; the first tensioning spring is arranged on the outer periphery of the guide cone sleeve and abuts the top surface of the support frame away from the support platform, and is used to drive the guide cone sleeve and the support frame to be tensioned, so that the guide cone sleeve is automatically aligned with the conduit end plug.

[0010] Preferably, a positioning hole is provided on the top of the support frame away from the support platform to accommodate the guide cone sleeve;

[0011] The guide cone sleeve includes a guide body that fits on the positioning hole and a column connected to the side of the guide body facing the support platform; a tapered hole for fitting with the catheter end plug is provided in the guide body, and a straight hole connected to the tapered hole and for the ventilation profiling grinding assembly to pass through is provided in the column; the first tensioning spring is sleeved on the outer periphery of the guide body.

[0012] Preferably, the rotating mechanism includes a rotating platform, a push rod, a rotating base and a vent plug;

[0013] The rotating platform is arranged on the supporting platform and is directly opposite to the guide cone sleeve, and the driving mechanism is arranged below the supporting platform; the push rod is connected between the rotating platform and the driving shaft of the driving mechanism, driving the rotating platform to rotate along with the driving shaft of the driving mechanism;

[0014] The rotating base is connected to the surface of the rotating platform facing the guide cone sleeve; the rotating base is provided with a positioning column protruding toward the guide cone sleeve, and the positioning hole in the positioning column is relatively connected to the guide channel of the guide cone sleeve; the vent plug is fitted between the positioning hole and the guide channel; the vent profiling grinding assembly is plugged into one end of the vent plug facing the guide cone sleeve and can move back and forth in the direction of entering and exiting the guide cone sleeve relative to the vent plug;

[0015] The rotating base is provided with a first vent hole connected to the positioning channel. The first vent hole, the positioning channel and the vent inner hole of the vent plug are connected in sequence to form the air flow channel.

[0016] Preferably, the ventilation contour grinding assembly includes a ventilation needle, an air bag and a grinding mesh;

[0017] The vent needle is inserted into one end of the vent plug facing the guide cone sleeve, and the vent passage of the vent needle is connected to the vent inner hole of the vent plug;

[0018] The airbag is sleeved on the ventilation needle, and the grinding mesh is sleeved on the surface of the airbag to move along with the airbag.

[0019] Preferably, the rotating mechanism further comprises a buffer cylinder connected between the vent plug and the vent profiling grinding assembly, and a buffer spring arranged in the buffer cylinder;

[0020] The buffer cylinder is relatively fixed to the vent plug, and the inner space of the buffer cylinder is communicated with the vent inner hole of the vent plug; the vent profiling grinding assembly can move back and forth along the buffer cylinder in the direction of entering and exiting the guide cone sleeve.

[0021] Preferably, the rotating mechanism further comprises a ball bearing disposed between the rotating platform and the rotating base;

[0022] The surface of the rotating platform is provided with a groove for positioning the ball; the rotating base is supported on the ball and can swing relative to the rotating platform through the ball.

[0023] Preferably, the underwater pipe end plug cleaning device also includes a second tensioning spring; the second tensioning spring is arranged on the outer periphery of the positioning column and the guide cone sleeve toward one end of the rotating mechanism, and is used to provide tensioning force to move the rotating mechanism and the ventilation contour grinding assembly in a direction away from the guide cone sleeve.

[0024] Preferably, the underwater pipe end plug cleaning device further comprises a lifting sleeve, wherein the lifting sleeve is sleeved between the push rod and the driving shaft of the driving mechanism to form a connection path between the rotating mechanism and the driving mechanism;

[0025] A second air vent is provided on the wall of the lifting sleeve, and the second air vent is connected to the internal channel of the lifting sleeve to form the driving channel; after the gas enters the driving channel through the second air vent, it drives the push rod to move along the lifting sleeve toward the guide cone sleeve.

[0026] Preferably, the underwater pipe end plug cleaning device further comprises a support sleeve sleeved on the outer periphery of the lifting sleeve and fixed relative to the support platform, a movable support sleeved on the outer periphery of the rotating platform and connected to the support sleeve, and at least one support guide rail passing through the movable support and uprightly connected to the support platform;

[0027] The movable support can move back and forth relative to the supporting platform along the lifting sleeve and the supporting guide rail in the height direction of the supporting guide rail.

[0028] Preferably, the underwater conduit end plug cleaning device further comprises an annular rotating guide rail fitted on the outer periphery of the rotating base;

[0029] The rotating guide rail is connected to the movable support via a connecting assembly and is relatively fixed, and the rotating base is rotatable relative to the rotating guide rail.

[0030] Preferably, the underwater pipe end plug cleaning device further comprises a bracket connected below the support platform, and the driving mechanism is fixed below the support platform via the bracket.

[0031] Preferably, the underwater pipe end plug cleaning device further comprises an inflation mechanism for providing an air source for the air flow channel.

[0032] The beneficial effects of the present invention are as follows: the ventilation profiling grinding component is used as the grinding piece, and the ventilation profiling grinding component can expand and fit the inner hole of the catheter end plug after ventilation. The rotation mechanism drives the rotation of the ventilation profiling grinding component to realize underwater grinding and cleaning of the inner hole of the catheter end plug, dredge the catheter end plug, and make the aperture and precision of the inner hole of the catheter end plug meet the requirements. The deformation size of the ventilation profiling grinding component is controlled by the amount of gas introduced, and flexible contact is made with the inner wall or inner hole of the pipeline, thereby realizing high-precision cleaning and good cleaning effect; and the rotation mechanism and the ventilation profiling grinding component thereon are driven up and down in a ventilation manner to realize grinding and cleaning of various parts of the inner hole of the catheter end plug, thereby achieving the purpose of fully cleaning the catheter end plug.

[0033] The underwater conduit end plug of the present invention is suitable for cleaning the thermocouple conduit end plug, solving the problem of improper installation of the thermocouple in the thermocouple conduit, and greatly reducing the cost of replacing parts and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of an underwater pipe end plug cleaning device according to an embodiment of the present invention at an angle;

[0036] Figure 2It is a schematic diagram of the three-dimensional structure of the underwater pipe end plug cleaning device according to one embodiment of the present invention at another angle;

[0037] Figure 3 1 is a schematic diagram of the longitudinal cross-sectional structure of an underwater pipe end plug cleaning device according to an embodiment of the present invention;

[0038] Figure 4 It is a schematic diagram of the cross-sectional structure inside the guide cone sleeve of the underwater pipe end plug cleaning device according to one embodiment of the present invention;

[0039] Figure 5 1. It is a schematic cross-sectional view of the ventilation and profiling grinding assembly in the underwater conduit end plug cleaning device according to one embodiment of the present invention when the ventilation and profiling grinding assembly is expanded in the guide cone sleeve;

[0040] Figure 6 It is a structural schematic diagram of a rotating base in an underwater pipe end plug cleaning device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0042] The underwater conduit end plug cleaning device of the present invention is used to be carried on a mobile platform underwater and clean the inner hole of a conduit end plug (such as a thermocouple conduit end plug) underwater, replacing manual operation.

[0043] like Figure 1-Figure 3 As shown, an underwater pipe end plug cleaning device according to an embodiment of the present invention may include a support platform 10, a support frame 20 arranged on the support platform 10, a guide cone sleeve 30, a rotating mechanism 40, a ventilation and contour grinding assembly 50, and a driving mechanism 60.

[0044] Among them, the support platform 10 is used to support the frame 20, the rotating mechanism 40 and the driving mechanism 60 and other mechanisms to be installed and positioned thereon. The support platform 10 is also used to connect with the mobile platform to realize the loading of the entire underwater catheter end plug cleaning device on the mobile platform.

[0045] Taking the support platform 10 as an example, the support frame 20 is connected to the support platform 10 in a vertical position, and a storage space is defined on the support platform 10 between the support frame 20 and the support platform 10. The guide cone sleeve 30 is arranged on the top of the support frame 20 away from the support platform 10, and is used to align and position the catheter end plug 100. The rotation mechanism 40 is arranged on the support platform 10 and opposite to the guide cone sleeve 30. The ventilation profiling grinding assembly 50 is arranged on the rotation mechanism 40 and inserted into the guide cone sleeve 30, and is used to grind and clean the inner hole 101 of the catheter end plug 100 positioned on the guide cone sleeve 30. The driving mechanism 60 is connected to the rotation mechanism 40 and is used to drive the rotation mechanism 40 to rotate relative to the support platform 10. The rotation of the rotation mechanism 40 drives the ventilation profiling grinding assembly 50 to rotate.

[0046] Specifically, the support platform 10 can be made of a sufficiently strong plate such as a metal plate, and its shape can be, but is not limited to, circular, elliptical, or polygonal. The support platform 10 is preferably circular to avoid sharp edges or corners that could cause scratches to surrounding personnel or equipment. Of course, the support platform 10 can also be a polygonal plate with chamfered edges.

[0047] The support platform 10 is also provided with at least one water hole 11 penetrating two opposite surfaces thereof, so as to facilitate entry of the support platform 10 and the entire underwater conduit end plug cleaning device into water and reduce water resistance, and also facilitate drainage after exiting the water.

[0048] The bottom of the support frame 20 can be fixedly connected to the support platform 10 by welding, or it can be removably connected to the support platform 10 by fasteners such as bolts. The support frame 20 is located away from the top of the support platform 10 and is used to install and position the guide cone sleeve 30, allowing the guide cone sleeve 30 to be suspended above the support platform 10. To this end, the top of the support frame 20 is provided with a positioning hole 21 to accommodate the guide cone sleeve 30.

[0049] A first tensioning spring 71 is provided between the guide sleeve 30 and the top of the support frame 20 to create tension between the guide sleeve 30 and the support frame 20, thereby automatically aligning the guide sleeve 30 with the catheter end plug 100. Specifically, the first tensioning spring 71 is positioned around the outer periphery of the guide sleeve 30 and abuts the top surface of the support frame 20, away from the support platform 10. Under pressure from the first tensioning spring 71, the guide sleeve 30 can move up and down relative to the support frame 20, forming a floating, automatic positioning structure that ensures cleaning accuracy and improves cleaning efficiency. For example, aligning the catheter end plug 100 onto the guide sleeve 30 and applying a certain amount of pressure (downward pressure) to the guide sleeve 30 simultaneously compresses the first tensioning spring 71, fully aligning the catheter end plug 100 within the guide sleeve 30. Once the pressure is removed, the first tensioning spring 71 expands, driving the guide sleeve 30 toward the catheter end plug 100, thereby ensuring a full fit between the guide sleeve 30 and the catheter end plug 100.

[0050] Combine Figure 2-Figure 4 The guide cone sleeve 30 may further include a guide body 31 that fits within the positioning hole 21, and a column 32 connected to the side of the guide body 31 facing the support platform 10. The outer diameter of the column 32 is smaller than that of the guide body 31. A first tensioning spring 71 is primarily mounted around the outer circumference of the guide body 31, with one end abutting against the top surface of the support frame 20 and the other end abutting against a raised ring 311 on the outer circumference of the guide body 31. The bottom of the guide body 31 engages with the inner side of the positioning hole 21 via a slot. The tension of the first tensioning spring 71 allows the guide cone sleeve 30 to slightly oscillate on the support frame 20. The column 32 is located in the accommodation space between the support frame 20 and the support platform 10 and faces the support platform 10.

[0051] The guide body 31 has a tapered hole 310 therein, which mates with the tapered end of the catheter end plug 100. A straight hole 320 is provided in the column 32, which connects to the tapered hole 310 to form a guide channel for the entire guide cone sleeve 30. The conduit end of the catheter end plug 100 fits within the tapered hole 310, achieving centering and positioning with the guide cone sleeve 30. The guide channel is also connected to the inner bore 101 of the catheter end plug 100, and the venting and contouring grinding assembly 50 enters the inner bore 101 of the catheter end plug 100 through the guide channel.

[0052] In the present invention, the ventilated, contoured grinding assembly 50 is a ventilated, expandable grinding assembly. Upon expansion, it can contour the inner hole being ground, thereby performing high-precision grinding. The ventilated, contoured grinding assembly 50 is supported below the guide cone sleeve 30 by a rotating mechanism 40. The rotating mechanism 40 also drives the ventilated, contoured grinding assembly 50 to rotate relative to the guide cone sleeve 30 and the catheter end plug 100.

[0053] Corresponding to the arrangement of the ventilated profiling grinding assembly 50 on the rotating mechanism 40, an air flow channel is provided on the rotating mechanism 40, which is connected to the ventilated profiling grinding assembly 50, that is, the air passage inside the ventilated profiling grinding assembly 50. The air flow channel is used to pass gas, and a portion of the gas entering the air flow channel drives the ventilated profiling grinding assembly 50 to move into the inner hole 101 of the catheter end plug 100, and a portion of the gas enters the ventilated profiling grinding assembly 50. After the ventilated profiling grinding assembly 50 expands, it adheres to the wall surface of the inner hole 101 of the catheter end plug 100, as shown in FIG. Figure 5 As shown, the ventilation profiling grinding assembly 50 can rotate with the rotating mechanism 40. The ventilation and expanded ventilation profiling grinding assembly 50 grinds and cleans the inner hole 101 of the catheter end plug 100 during the rotation process, not only clearing the inner hole 101, but also processing the inner diameter of the inner hole 101 to the assembly requirements, such as the inner diameter required for inserting a thermocouple.

[0054] Combine Figure 3 and Figure 5 The ventilation contour grinding assembly 50 may specifically include a ventilation needle 51, an airbag 52, and a grinding net (not shown). The interior of the ventilation needle 51 is hollow to form an airway, and the airbag 52 is sleeved on the ventilation needle 51, and the ventilation needle 51 is provided with at least one needle hole connecting the airway and the inner cavity of the airbag 52. After the gas is introduced into the ventilation needle 51, the gas is output from the needle hole to the airbag 52, causing the airbag 52 to expand. The grinding net is arranged on the surface of the airbag 52 and moves with the airbag 52, including expanding with the airbag 52 and contracting with the airbag 52. Since the airbag 52 is made of a flexible (elastic) material, it can fit with the inner wall surface of the inner hole 101 after expanding in the inner hole 101 of the catheter end plug 100, so that the grinding net on the surface of the airbag 52 also fits with the inner wall surface of the inner hole 101.

[0055] Combine Figure 2 、 Figure 3 and Figure 6 The rotating mechanism 40 may further include a rotating platform 41, a push rod 42, a rotating base 43, and a vent plug 44. The rotating platform 41 is disposed on the support platform 10 and faces the guide cone sleeve 30. The driving mechanism 60 is disposed below the support platform 10, and the push rod 42 is connected between the rotating platform 41 and the drive shaft of the driving mechanism 60. When the driving mechanism 60 is activated, the push rod 42 is driven to rotate via the drive shaft, and the rotation of the push rod 42 drives the rotating platform 41 to rotate.

[0056] The rotating base 43 is connected to the surface of the rotating platform 41 facing the guide cone sleeve 30. The rotating base 43 is provided with a positioning column 431, which protrudes toward the guide cone sleeve 30 and has a positioning channel 430 therein. The positioning channel 430 is relatively connected to the guide channel of the guide cone sleeve 30.

[0057] The vent plug 44 fits between the positioning channel 430 and the guide channel of the guide cone sleeve 30. The vent plug 44 is fixed relative to the rotating base 43, allowing it to rotate relative to the guide cone sleeve 30. The vent plug 44 has internal vent holes extending through its opposite ends. The venting and profiling grinding assembly 50 is inserted into the end of the vent plug 44 facing the guide cone sleeve 30. The venting channel within the venting and profiling grinding assembly 50 communicates with the venting hole of the vent plug 44. The venting and profiling grinding assembly 50 is movably fitted to the vent plug 44, allowing it to move back and forth relative to the vent plug 44 in the direction of entering and exiting the guide cone sleeve 30, driven by airflow.

[0058] The rotating base 43 is also provided with a first vent hole 432 for connecting to an external air source. This first vent hole 432 communicates with the positioning hole 430 of the positioning post 431. Thus, the first vent hole 432, the positioning hole 430, and the vent inner hole of the vent plug 44 are sequentially connected to form an airflow channel. During operation, the venting and profiling grinding assembly 50 is first connected to an external air source through the first vent hole 432. Gas from the air source enters the airflow channel, with a portion of the gas entering the venting and profiling grinding assembly 50, causing it to ventilate and expand, and a portion of the gas driving the venting and profiling grinding assembly 50 to move relative to the vent plug 44 toward the inner hole 101 of the guide cone sleeve 30 and the catheter end plug 100.

[0059] The rotating mechanism 40 further includes a buffer cylinder 45 connected between the vent plug 44 and the vent profile grinding assembly 50 , and a buffer spring 46 disposed in the buffer cylinder 45 .

[0060] In the present invention, the buffer cylinder 45 is a hollow cylindrical housing. It is fixed to the end of the vent plug 44 that faces the guide cone sleeve 30 and is fixed relative to the vent plug 44. The interior of the buffer cylinder 45 communicates with the vent hole of the vent plug 44. The venting and profiling grinding assembly 50 fits within the buffer cylinder 45 at one end, allowing it to move back and forth along the buffer cylinder 45 in the direction of entering and exiting the guide cone sleeve 30.

[0061] The buffer spring 46 is located below the venting and contouring grinding assembly 50 within the buffer cylinder 45, or rather, at the inner bottom of the buffer cylinder 45. When gas enters the airflow channel, it flows along the channel into the vent plug 44 and the buffer cylinder 45, forcing the venting and contouring grinding assembly 50 to move along the buffer cylinder 45 toward the inner bore 101 of the guide cone 30 and the conduit end plug 100. When ventilation is stopped or deflated, the venting and contouring grinding assembly 50 moves toward the interior of the buffer cylinder 45 until it contacts the buffer spring 46 at the inner bottom of the buffer cylinder 45.

[0062] Furthermore, the rotating mechanism 40 includes a ball bearing 47 disposed between the rotating platform 41 and the rotating base 43. A groove is provided on the surface of the rotating platform 41 for positioning the ball bearing 47. A portion of the ball bearing 47 is accommodated within the groove, while a portion protrudes from the surface of the rotating platform 41. The rotating base 43 is supported on the surface of the ball bearing 47 and is able to swing relative to the rotating platform 41 via the ball bearing 47. The swinging of the rotating base 43 relative to the rotating platform 41 occurs primarily in the radial direction of the rotating base 43 or in the horizontal direction of the plane in which the rotating base 43 resides.

[0063] With the rotating base 43 connected to the rotating platform 41 and supported on the ball bearing 47, the connection between the rotating base 43 and the rotating platform 41 can be achieved by fasteners such as bolts. Preferably, the ball bearing 47 is positioned at the center of the rotating platform 41, and the bolt is arranged on at least one side of the ball bearing 47 and connected vertically between the rotating base 43 and the rotating platform 41. The hole on the rotating base 43 that engages with the bolt is a waist-shaped hole (or an elliptical hole). In this way, when the rotating base 43 swings relative to the rotating platform 41 via the ball bearing 47, the end of the bolt engaged with the waist-shaped hole (or elliptical hole) of the rotating base 43 can move back and forth along the waist-shaped hole (or elliptical hole).

[0064] The driving mechanism 60 is used to drive the rotating mechanism 40 to rotate. In the present invention, the driving mechanism 60 is arranged below the supporting platform 10, so that the driving mechanism 60 and the rotating mechanism 40 are located on opposite sides of the supporting platform 10, such as Figure 1 、 Figure 2 Upper and lower sides shown.

[0065] Alternatively, if Figure 3 As shown, the drive mechanism 60 includes a motor 61 and a reducer 62. The reducer 62 is connected to the output shaft of the motor 61 and is located between the motor 61 and the support platform 10. The output shaft of the reducer 62 forms the drive shaft of the drive mechanism 60, which is used to connect to the rotation mechanism 40, specifically to the push rod 42 of the rotation mechanism 40.

[0066] In order to fix the driving mechanism 60 below the support platform 10, the underwater pipe end plug cleaning device of the present invention further includes a bracket 80 connected below the support platform 10, and the driving mechanism 60 is fixed below the support platform 10 through the bracket 80. The bracket 80 may further include a motor bracket and a reducer bracket.

[0067] Furthermore, the underwater catheter end plug cleaning device of the present invention can be moved relative to the support platform 10 in a direction close to the guide cone sleeve 30 through the rotating mechanism 40, and can drive the ventilation contour grinding assembly 50 to move up and down in the inner hole 101 of the catheter end plug 100, thereby achieving grinding and cleaning of various locations of the inner hole 101 (such as different depth positions).

[0068] In order to achieve the mobility of the above-mentioned rotating mechanism 40 relative to the support platform 10, a driving structure is also provided between the rotating mechanism 40 and the driving mechanism 60. The driving structure is used to drive the rotating mechanism 40 to move relative to the support platform 10 in the direction close to the guide cone sleeve 30, thereby driving the ventilation contour grinding assembly 50 to move up and down in the inner hole 101 of the catheter end plug 100.

[0069] The drive structure can be disposed on the connecting path between the rotating mechanism 40 and the drive mechanism 60. Alternatively, the drive structure can include a drive cylinder or a motor assembly, connected to the push rod 42 of the rotating mechanism 40 via the drive cylinder or motor assembly, thereby driving the rotating mechanism 40, where the push rod 42 is located, to move up and down. Alternatively, the drive structure can include a drive channel for admitting gas. Once the gas enters the drive channel, it drives the rotating mechanism 40 relative to the support platform 10 toward the guide cone sleeve 30, thereby driving the ventilation and contour grinding assembly 50 to move up and down within the inner bore 101 of the catheter end plug 100.

[0070] The driving structure of the underwater pipe end plug cleaning device of this embodiment preferably includes a driving channel. The arrangement of the driving channel allows the air source required for the driving channel and the air source required for the operation of the ventilation and contour grinding assembly 50 to come from the same inflation mechanism.

[0071] There is a gap between the guide cone sleeve 30 and the rotating mechanism 40, which provides space for the upward movement of the rotating mechanism 40 and also provides space for the downward movement of the guide cone sleeve 30.

[0072] Specifically, in this embodiment, Figure 2 and Figure 3 As shown, the underwater pipe end plug cleaning device of the present invention may further include a lifting sleeve 91 , a second tensioning spring 72 , a supporting sleeve 92 , a movable support 93 and at least one supporting guide rail 94 .

[0073] The lifting sleeve 91 is sleeved between the push rod 42 and the drive shaft of the drive mechanism 60, forming a connecting path between the rotating mechanism 40 and the drive mechanism 60. The lifting sleeve 91 is relatively fixed to the drive shaft of the drive mechanism 60. The end of the push rod 42, which is away from the rotating platform 41, fits within the lifting sleeve 91 and can move back and forth along the axial direction (or length direction) of the lifting sleeve 91. The wall of the lifting sleeve 91 is provided with a second vent hole 910, which is connected to the internal passage of the lifting sleeve 91 to form a drive channel. After gas enters the drive channel through the second vent hole 910, it drives the push rod 42 along the lifting sleeve 91 toward the guide cone sleeve 30, thereby driving the entire rotating mechanism 40 and the ventilation contour grinding assembly 50 thereon toward the guide cone sleeve 30.

[0074] The second tensioning spring 72 is sleeved around the positioning post 431 of the rotating base 43 and the outer periphery of the end of the guide cone sleeve 30 facing the rotating mechanism 40, and is used to provide tensioning force to move the rotating mechanism 40 and the ventilation and profiling grinding assembly 50 away from the guide cone sleeve 30. When ventilation to the drive channel is stopped or the drive channel is deflated, the force driving the push rod 42 to move toward the guide cone sleeve 30 also disappears. At this time, the second tensioning spring 72 extends itself, driving the rotating base 43, the rotating platform 41 thereunder, and the push rod 42 to move away from the guide cone sleeve 30, thereby driving the rotating mechanism 40 to move and reset.

[0075] Support sleeve 92 is mounted on the outer periphery of lifting sleeve 91 and is fixed relative to support platform 10. Mobile support 93 is suspended above support platform 10, sleeved on the outer periphery of rotating platform 41, and connected to support sleeve 92. Support rail 94 passes through mobile support 93 and is vertically connected to support platform 10. Mobile support 93 can move back and forth relative to support platform 10 along lifting sleeve 91 and support rail 94 in the height direction of support rail 94.

[0076] When the gas enters the driving channel through the second vent hole 910 and drives the push rod 42 to move along the lifting sleeve 91 toward the guide cone sleeve 30 , the movable support 93 also moves along the lifting sleeve 91 and the support guide rail 94 .

[0077] The supporting sleeve 92 , the movable support 93 and the supporting guide rail 94 form a movable guide mechanism for the rotating mechanism 40 to move up and down relative to the supporting platform 10 , and also play a supporting role for the rotating mechanism 40 .

[0078] Furthermore, to ensure stability and balance during rotation of the rotating base 43, the underwater conduit end plug cleaning device of the present invention also includes an annular rotating guide rail 95 that fits around the outer periphery of the rotating base 43. The rotating guide rail 95 is connected to the movable support 93 via a connecting assembly 96 and is relatively fixed thereto. The rotating base 43 is rotatable relative to the rotating guide rail 92. The rotating guide rail 95 constrains the rotating base 43 to its inner ring while not affecting its rotation.

[0079] When the underwater conduit end plug cleaning device of the present invention is used, it is carried on a mobile platform and enters the water together with the mobile platform.

[0080] Under water, the conduit end plug 100 to be cleaned is first fitted to the tapered hole 310 of the guide cone sleeve 30. A certain amount of pressure is applied, and the bottom surface of the rotating base 43 is swung on the ball bearing 47 to adjust the position of the entire rotating mechanism 40 and the ventilation and profiling grinding assembly 50. The first tensioning spring 71 is used to tension the guide cone sleeve 30 and the support frame 20. The centering property of the tapered hole on the guide cone sleeve 30 ensures the machining accuracy of the ventilation and profiling grinding assembly 50 on the inner hole 101 of the conduit end plug 100.

[0081] Then, gas is injected through the first vent hole 432, and the gas flows along the vent plug 44 to the buffer cylinder 45 to push the vent needle 51 into the inner hole 101 of the catheter end plug 100. The gas follows the needle hole on the vent needle 51, causing the airbag 52 to drive the grinding mesh to expand, and make the grinding mesh fit tightly with the inner hole 101 of the catheter end plug 100.

[0082] The drive mechanism 60 is activated, causing the lifting sleeve 91 connected to the drive mechanism 60 to drive the push rod 42, the rotating platform 41, and the rotating base 43 to rotate along the rotating guide rail 95, ultimately driving the vent plug 44, the buffer cylinder 45, and the venting and contouring grinding assembly 50 to rotate, completing the initial grinding and cleaning of the inner bore 101 of the catheter end plug 100. During the grinding and cleaning process, the pressure of the gas at the first vent hole 432 can be controlled to control the cleaning force of the air bag 52 and its upper grinding mesh on the inner bore 101, thereby preventing the inner bore 101 from being damaged by insufficient or excessive cleaning force.

[0083] Considering the gap between the grinding mesh and the inner wall of inner bore 101, some gaps may not be cleaned during rotation. Gas injected into the drive channel through second vent hole 910 has a certain pressure, which can drive push rod 42 and the entire rotating mechanism 40 to move upward along support rail 94, driving the airbag 52 of the ventilation and contour grinding assembly 50 upward. When the pressure in second vent hole 910 decreases, the airbag 52 and the entire ventilation and contour grinding assembly 50 move downward under the action of second tensioning spring 72, completing the grinding and cleaning of inner bore 101 of catheter end plug 100.

[0084] After the inner hole 101 of a guide end plug 100 is ground and cleaned, the gas is extracted through the first vent hole 432 to tighten the air bag 52, and then the vent needle 51 is retracted. After replacing another guide end plug 100, the next grinding and cleaning process is started.

[0085] According to the need for ventilation of the first air vent 432 and the second air vent 910 during the above-mentioned use, the underwater pipe end plug cleaning device of the present invention may also include an inflation mechanism, which is sealedly connected to the first air vent 432 and the second air vent 910 through two ventilation pipes, respectively, to pass gas into the first air vent 432 and the second air vent 910, that is, it also provides an air source for the air flow channel and the drive channel.

[0086] It can be understood that when the underwater pipe end plug cleaning device of the present invention is working underwater, the inflation mechanism does not need to be immersed in water, but is placed on the ground or work platform above the water surface, and the ventilation pipe connecting the first ventilation hole 432 and the second ventilation hole 910 can be put into the water.

[0087] It should be noted that the present invention is not limited to the grinding and cleaning of the inner hole of the catheter end plug. Any hammer-shaped component with an inner hole can be ground and cleaned using the underwater catheter end plug cleaning device of the present invention.

[0088] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An underwater pipe end plug cleaning device, characterized in that: The invention comprises a support platform, a support frame provided on the support platform, a guide cone sleeve provided on the support frame and used for aligning and positioning with the catheter end plug, a rotation mechanism provided on the support platform and opposite to the guide cone sleeve, a ventilation contour grinding assembly provided on the rotation mechanism and inserted into the guide cone sleeve, and a driving mechanism connected to and driving the rotation mechanism to rotate relative to the support platform; The rotating mechanism is provided with an air flow channel connected to the ventilation and profiling grinding assembly, the air flow channel is used to pass gas, and after the gas enters the air flow channel, the ventilation and profiling grinding assembly is driven to move into the inner hole of the catheter end plug. After the ventilation and profiling grinding assembly is expanded, it fits with the wall surface of the inner hole of the catheter end plug; and the ventilation and profiling grinding assembly can rotate with the rotating mechanism to grind and clean the inner hole of the catheter end plug. A driving structure is provided on the connection path between the rotating mechanism and the driving mechanism, and the driving structure is used to drive the rotating mechanism to move relative to the supporting platform in a direction close to the guide cone sleeve, so as to drive the ventilation and contour grinding assembly to move within the inner hole of the catheter end plug; Wherein, the rotating mechanism includes a rotating platform, a push rod, a rotating base and a vent plug; The rotating platform is arranged on the supporting platform and is directly opposite to the guide cone sleeve, and the driving mechanism is arranged below the supporting platform; the push rod is connected between the rotating platform and the driving shaft of the driving mechanism, driving the rotating platform to rotate along with the driving shaft of the driving mechanism; The rotating base is connected to the surface of the rotating platform facing the guide cone sleeve; the rotating base is provided with a positioning column protruding toward the guide cone sleeve, and the positioning hole in the positioning column is relatively connected to the guide channel of the guide cone sleeve; the vent plug is fitted between the positioning hole and the guide channel; the vent profiling grinding assembly is plugged into one end of the vent plug facing the guide cone sleeve and can move back and forth in the direction of entering and exiting the guide cone sleeve relative to the vent plug; The rotating base is provided with a first vent hole connected to the positioning channel. The first vent hole, the positioning channel and the vent inner hole of the vent plug are connected in sequence to form the air flow channel.

2. The underwater conduit end plug cleaning device according to claim 1, characterized in that: The underwater conduit end plug cleaning device also includes a first tensioning spring; the first tensioning spring is arranged on the outer periphery of the guide cone sleeve and abuts the top surface of the support frame away from the support platform, and is used to drive the tension between the guide cone sleeve and the support frame, so that the guide cone sleeve is automatically aligned with the conduit end plug.

3. The underwater conduit end plug cleaning device according to claim 2, characterized in that: The support frame is provided with a positioning hole at the top away from the support platform to accommodate the guide cone sleeve; The guide cone sleeve includes a guide body that fits on the positioning hole and a column connected to the side of the guide body facing the support platform; a tapered hole for fitting with the catheter end plug is provided in the guide body, and a straight hole connected to the tapered hole and for the ventilation profiling grinding assembly to pass through is provided in the column; the first tensioning spring is sleeved on the outer periphery of the guide body.

4. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The ventilation contour grinding assembly includes a ventilation needle, an air bag and a grinding net; The vent needle is inserted into one end of the vent plug facing the guide cone sleeve, and the vent passage of the vent needle is connected to the vent inner hole of the vent plug; The airbag is sleeved on the ventilation needle, and the grinding mesh is sleeved on the surface of the airbag to move along with the airbag.

5. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The rotating mechanism further includes a buffer cylinder connected between the vent plug and the vent profiling grinding assembly, and a buffer spring disposed in the buffer cylinder; The buffer cylinder is relatively fixed to the vent plug, and the inner space of the buffer cylinder is communicated with the vent inner hole of the vent plug; the vent profiling grinding assembly can move back and forth along the buffer cylinder in the direction of entering and exiting the guide cone sleeve.

6. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The rotating mechanism further includes a ball disposed between the rotating platform and the rotating base; The surface of the rotating platform is provided with a groove for positioning the ball; the rotating base is supported on the ball and can swing relative to the rotating platform through the ball.

7. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The underwater pipe end plug cleaning device also includes a second tensioning spring; the second tensioning spring is arranged on the outer periphery of the positioning column and the guide cone sleeve toward one end of the rotating mechanism, and is used to provide tensioning force to move the rotating mechanism and the ventilation contour grinding assembly in a direction away from the guide cone sleeve.

8. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The underwater pipe end plug cleaning device further comprises a lifting sleeve, which is sleeved between the push rod and the driving shaft of the driving mechanism to form a connection path between the rotating mechanism and the driving mechanism.

9. The underwater conduit end plug cleaning device according to claim 8, characterized in that: The driving structure includes a driving channel; A second air vent is provided on the wall of the lifting sleeve, and the second air vent is connected to the internal channel of the lifting sleeve to form the driving channel; after the gas enters the driving channel through the second air vent, it drives the push rod to move along the lifting sleeve toward the guide cone sleeve.

10. The underwater conduit end plug cleaning device according to claim 8, characterized in that: The underwater pipe end plug cleaning device also includes a support sleeve sleeved on the outer periphery of the lifting sleeve and fixed relative to the support platform, a movable support sleeved on the outer periphery of the rotating platform and connected to the support sleeve, and at least one support guide rail passing through the movable support and uprightly connected to the support platform; The movable support can move back and forth relative to the supporting platform along the lifting sleeve and the supporting guide rail in the height direction of the supporting guide rail.

11. The underwater conduit end plug cleaning device according to claim 10, characterized in that: The underwater conduit end plug cleaning device further comprises an annular rotating guide rail fitted on the outer periphery of the rotating base; The rotating guide rail is connected to the movable support via a connecting assembly and is relatively fixed, and the rotating base is rotatable relative to the rotating guide rail.

12. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The underwater pipe end plug cleaning device further comprises a bracket connected below the support platform, and the driving mechanism is fixed below the support platform via the bracket.

13. The underwater conduit end plug cleaning device according to any one of claims 1 to 3, characterized in that: The underwater pipe end plug cleaning device also includes an inflation mechanism for providing an air source for the air flow channel.

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