CN112460258B - Ship cable trough penetrating piece sealing device and using method thereof - Google Patents
Ship cable trough penetrating piece sealing device and using method thereof Download PDFInfo
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- CN112460258B CN112460258B CN202011328199.2A CN202011328199A CN112460258B CN 112460258 B CN112460258 B CN 112460258B CN 202011328199 A CN202011328199 A CN 202011328199A CN 112460258 B CN112460258 B CN 112460258B
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- Prior art keywords
- cable trough
- piece
- stretching
- inner hole
- plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/028—Sealings between relatively-stationary surfaces with elastic packing the packing being mechanically expanded against the sealing surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/068—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing swelling under working conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention relates to the technical field of ship construction, in particular to a ship cable trough penetrating piece sealing device which comprises a stretching connecting plate, a rubber piece arranged on the stretching connecting plate, a thrust plate arranged on the rubber piece, a supporting mechanism arranged on the thrust plate and a stretching rod movably penetrating through the rubber piece, the thrust plate and the supporting mechanism, wherein one end of the stretching rod is fixedly connected with the stretching connecting plate, the other end of the stretching rod is in threaded connection with a tensioning nut, the tensioning nut is in pressure contact with the supporting mechanism, the stretching connecting plate, the rubber piece and the thrust plate are all in a rectangular shape matched with the cross section of an inner hole of the cable trough penetrating piece, and the supporting mechanism can stretch along the radial direction of the stretching rod. The device is supported and fixed by extending the supporting mechanism to be in pressure contact with the inner hole wall of the cable trough penetrating piece, and the tensioning nut is screwed down to enable the stretching connecting plate to extrude the rubber piece along the direction towards the thrust plate to be attached to the inner hole wall of the cable trough penetrating piece in an expanding mode, so that the inner hole is sealed.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a ship cable trough penetration piece sealing device and a using method thereof.
Background
With the development and progress of science and technology and the extensive research and development and application of novel materials, the manufacturing level of the marine cable is rapidly developed and promoted, and the cable material in the prior art has certain corrosion resistance and pressure resistance. However, the marine cable is applied to the ship and is arranged and penetrated in each position of the ship like animal tissue blood vessels, so that on one hand, the ship sails on the sea for a long time and is in more contact with salt fog, and the cable still can be corroded and damaged to a certain extent; on the other hand, the marine cable passes through liquid cabins such as ship oil cabins and water cabins and special cabins needing tightness, and measures for isolating and protecting the cable from the liquid are needed.
The ship cable trough is generally arranged on a ship, provides a guide frame for laying a ship cable and plays a role in fixing the cable; meanwhile, due to the structural characteristics of the marine cable trough, the marine cable laid on the guide frame in the trough body of the cable trough can be protected from external corrosion and pressure damage. The ship cable trough structure generally comprises a trough body, a cover plate is arranged at a trough opening on the upper side of the trough body, the trough body comprises a plurality of sections of sub-trough bodies which are sequentially connected end to end, the cross section of each sub-trough body is of a U-shaped structure, and the end faces of two adjacent sub-trough bodies are fixed through welding. Run through in the cable duct in liquid cabin, generally set up a cable duct penetrating member in cabin wallboard department and be used for connecting inside and outside two branch cell bodies in the cabin, the cable duct penetrating member runs through in the cabin wallboard, the both ends terminal surface of cable duct penetrating member respectively with be located inside and outside two branch cell body terminal surfaces welded fastening of cavity, the inside hole that supplies the cable to pass that has along axial through of cable duct penetrating member, this hole shape is the rectangle with the cross sectional shape assorted of cable duct.
At a certain stage of ship construction, certain specific liquid compartments are filled with water and pressurized to carry out strength tests, and the structural strength, the welding seam tightness and the like of the ship body of the liquid compartments are checked. Based on the restriction of liquid cabin test condition, install the cable duct in the cabin because the cable is not laid, the cable duct is not installed completely, consequently need carry out the shutoff to the cable duct penetration piece that runs through the liquid cabin in the strength test process, guarantee the leakproofness of whole liquid cabin.
The traditional construction method is to weld a temporary steel plate at the port of a cable trough penetration piece for plugging, and then remove the temporary steel plate after the strength test of the liquid cabin is finished. The construction method has the following defects:
1. the steel plate for plugging is welded in front of the port of the cable trough penetrating piece, and the sub-trough body connected with the port needs to be detached, so that the feasibility of plugging and the welding space are ensured.
2. The welding of cable duct through-component port wastes time and energy, and labor efficiency is low, and there is uncontrollable nature in the welding seam quality simultaneously, and the leakproofness of shutoff can't obtain effectual assurance, causes reworking, influences the production progress.
3. After the strength test of the liquid cabin is finished, the temporary steel plate is dismantled to cause the damage of the base material of the cable trough penetration piece, so that the construction quality of a product is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a ship cable trough penetration piece sealing device capable of plugging a cable trough penetration piece port and a using method of the ship cable trough penetration piece sealing device, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a boats and ships cable duct runs through a tightness device, including tensile even board, locate tensile rubber spare on even board, locate the thrust plate on the rubber spare, locate supporting mechanism on the thrust plate and movably run through in the rubber spare, thrust plate and supporting mechanism's tensile pole that stretches, the one end and the tensile even board fixed connection of tensile pole, and the other end is equipped with the tensioning screw thread section with tensioning nut threaded connection, the one end pressure contact of thrust plate is kept away from to tensioning nut and supporting mechanism, tensile even board, rubber spare and thrust plate all are the hole cross sectional shape assorted rectangle with cable duct runs through, supporting mechanism can follow tensile pole radially flexible and contact or separate with the interior pore wall of cable duct run through.
Preferably, the supporting mechanism comprises a supporting cylinder sleeved on the stretching rod and a radial telescopic assembly arranged on the outer circumferential surface of the supporting cylinder, and two ends of the supporting cylinder are respectively contacted with the thrust plate and the tensioning nut.
Preferably, the supporting cylinder comprises a conical cylinder and a cylindrical cylinder coaxially connected with one end with the smaller outer diameter of the conical cylinder, the outer diameter of the cylindrical cylinder is smaller than the minimum outer diameter of the conical cylinder, the end with the larger outer diameter of the conical cylinder is contacted with the thrust plate, and one end of the cylindrical cylinder, far away from the conical cylinder, is contacted with the tensioning nut; the radial telescopic component is arranged on the peripheral surface of the cylindrical barrel.
Preferably, radial flexible subassembly includes that the axial of following a cylinder section of thick bamboo is in proper order movably to overlap and establish leading connection pad, spring and shore connection pad on the cylinder section of thick bamboo outer peripheral face and follow the multiunit connecting rod extending structure of the circumference interval arrangement of a cylinder section of thick bamboo, and the one end that a toper section of thick bamboo was kept away from to a cylinder section of thick bamboo is equipped with the shore screw thread section with shore nut threaded connection, and the spring pushes up leading connection pad and shore connection pad respectively on a toper section of thick bamboo and shore nut, and connecting rod extending structure connects leading connection pad and shore connection pad.
Preferably, the connecting rod telescopic structure comprises a first support rod and a second support rod, one end of the first support rod is hinged to the front connecting disc, one end of the second support rod is hinged to the top connecting disc, and the middle of the first support rod is hinged to the middle of the second support rod.
Preferably, the anti-skidding sleeves are arranged at one end, away from the front connecting disc, of the first support rod and one end, away from the top supporting connecting disc, of the second support rod.
Preferably, a group of connecting rod telescopic structures are respectively arranged at the positions corresponding to four corners of the stretching connecting plate in the circumferential direction of the cylindrical barrel.
The use method of the ship cable trough penetrating piece sealing device sequentially comprises the following steps: step one, removing a cover plate of a cable groove connected with a cable groove penetrating piece in a partition empty cabin of the airtight cabin; placing the ship cable trough penetrating piece sealing device into an inner hole of the cable trough penetrating piece; thirdly, the supporting mechanism extends along the radial direction of the stretching rod to be in pressure contact with the inner hole wall of the cable trough penetrating piece; tightening the tensioning nut to enable the stretching rod to drive the stretching connecting plate to extrude the rubber part along the direction towards the thrust plate until the outer periphery of the rubber part is expanded and attached to the inner hole wall of the cable trough penetrating part; step five, performing a tightness test on the tightness cabin; and step six, after the tightness test is finished, reversely unscrewing the tensioning nut, enabling the supporting mechanism to contract along the radial direction of the stretching rod to be away from the inner hole wall of the cable trough penetrating piece, and then taking out the tightness device of the ship cable trough penetrating piece from the inner hole of the cable trough penetrating piece.
Compared with the prior art, the invention has remarkable progress:
when the tightness testing device is used, the whole tightness testing device for the ship cable trough penetrating piece can be put into an inner hole of the cable trough penetrating piece from a port of the cable trough penetrating piece, then the support mechanism extends along the radial direction of the stretching rod to be in pressure contact with the inner hole wall of the cable trough penetrating piece, so that the support and the fixation of the whole tightness testing device in the inner hole of the cable trough penetrating piece are realized, the stretching rod drives the stretching connecting plate to extrude the rubber piece along the direction towards the thrust plate by screwing the tensioning nut until the outer periphery of the rubber piece expands, fits and is tightly pressed on the inner hole wall of the cable trough penetrating piece, the sealing of the inner hole of the cable trough penetrating piece is realized, and the tightness testing can be carried out on a tightness cabin provided with the cable trough penetrating piece; after the test is finished, the tensioning nut is reversely unscrewed, the rubber part is elastically restored to withdraw the outer peripheral edge of the expansion protrusion, then the supporting mechanism is contracted along the radial direction of the stretching rod to leave the inner hole wall of the cable trough penetrating piece, and the device can be taken out from the inner hole of the cable trough penetrating piece. Therefore, the ship cable trough penetrating piece sealing device can plug the port of the cable trough penetrating piece, and the cable trough penetrating piece and the cable trough body connected with the cable trough penetrating piece cannot be damaged by mounting and dismounting of the device in the inner hole of the cable trough penetrating piece.
Drawings
Fig. 1 is a schematic perspective view of a sealing device for a ship cable trough penetration member according to an embodiment of the present invention.
Fig. 2 is a schematic view of a fastening connection of a stretching rod and a stretching link plate in the sealing device for a cable trough penetration member of a ship according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a support cylinder in the device for sealing a cable trough penetration of a ship according to the embodiment of the present invention.
Fig. 4 is a schematic top view of the sealing device for a ship cable trough penetration piece according to the embodiment of the invention.
Fig. 5 is a schematic view of the watertight device for a cable trough penetration of a ship according to an embodiment of the present invention.
Fig. 6 is an enlarged schematic view of a portion a in fig. 5.
Wherein the reference numerals are as follows:
100. ship cable trough penetrating piece sealing device 200 and cable trough penetrating piece
300. Airtight cabin 400 and empty cabin
500. Cabin wall plate
1. Stretching connecting plate 2 and rubber part
3. Thrust plate 4, supporting mechanism
41. Prop up a section of thick bamboo 411, a toper section of thick bamboo
412. Cylindrical barrel 413 and top support thread section
42. Front connecting disc 43 and spring
44. Top bracing connecting disc 45 and top bracing nut
46. A first stay 461 and a first embedded pin
47. Second stay 470, elongated hole
471. Second fitting pin 48, connecting pin
49. Antiskid sleeve 491 and anti-drop pin
5. Stretching rod 51, tensioning screw thread segment
6. Tensioning nut
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 6, an embodiment of a sealing device for a ship cable trough penetration member according to the present invention. The ship cable trough penetration sealing device 100 of the present embodiment is used for plugging the cable trough penetration 200 provided on the compartment wall 500 between the sealing compartment 300 and the empty compartment 400, so as to perform a sealing test on the sealing compartment 300.
Referring to fig. 1 and 2, a ship cable trough penetration sealing device 100 of the present embodiment includes a stretching connecting plate 1, a rubber member 2 disposed on the stretching connecting plate 1, a thrust plate 3 disposed on the rubber member 2, a supporting mechanism 4 disposed on the thrust plate 3, and a stretching rod 5 movably penetrating through the rubber member 2, the thrust plate 3, and the supporting mechanism 4. The rubber member 2 is made of a rubber material with good expansion elasticity. One end of the stretching rod 5 is fixedly connected with the stretching connecting plate 1, and the stretching rod 5 and the stretching connecting plate 1 can be fixedly connected through welding. The other end of the stretching rod 5 is provided with a tensioning threaded section 51, the tensioning threaded section 51 is provided with an external thread, and the external thread of the tensioning threaded section 51 is matched and connected with the internal thread of the tensioning nut 6. The tensioning nut 6 is in pressure contact with one end, far away from the thrust plate 3, of the supporting mechanism 4, the thrust plate 3, the rubber part 2 and the stretching connecting plate 1, of the supporting mechanism 4 in the axial direction of the stretching rod 5, so that the supporting mechanism 4, the thrust plate 3, the rubber part 2 and the stretching connecting plate 1 can be mutually compressed and fixed, and when the tensioning nut 6 is further tightened, the stretching rod 5 can be displaced relative to the tensioning nut 6 through the matching of the tensioning nut 6 and the tensioning threaded end 51 of the stretching rod 5, the stretching connecting plate 1 is driven to extrude the rubber part 2 along the direction towards the thrust plate 3, and the rubber part 2 is extruded to expand, bulge and deform at the outer periphery; when the tensioning nut 6 is reversely unscrewed, the stretching rod 5 can drive the stretching connecting plate 1 to displace along the direction away from the thrust plate 3, so that the rubber part 2 is loosened, and the rubber part 2 is elastically restored to retract the convex outer peripheral edge.
With reference to fig. 5 and 6, the stretching connecting plate 1, the rubber member 2 and the thrust plate 3 are all rectangular and matched with the cross-sectional shape of the inner hole of the cable trough penetrating member 200, and the stretching connecting plate 1, the rubber member 2 and the thrust plate 3 which are stacked one on the other can be inserted into or withdrawn from the inner hole of the cable trough penetrating member 200, and the supporting mechanism 4 can be inserted into or withdrawn from the inner hole of the cable trough penetrating member 200, i.e. the whole ship cable trough penetrating member sealing device 100 can be inserted into or withdrawn from the inner hole of the cable trough penetrating member 200. The support mechanism 4 is extendable and retractable in the radial direction of the stretching rod 5 to contact with and separate from the inner hole wall of the cable duct penetration 200. When the supporting mechanism 4 extends along the radial direction of the stretching rod 5 to be in pressure contact with the inner hole wall of the cable trough penetrating piece 200, the supporting mechanism 4 and the cable trough penetrating piece 200 are relatively fixed, so that the ship cable trough penetrating piece sealing device 100 can be integrally supported and fixed in the inner hole of the cable trough penetrating piece 200; when the support means 4 is retracted in the radial direction of the stretching rod 5 to a position away from the inner bore wall of the cable trough penetration 200, the support means 4 is disengaged from the cable trough penetration 200, at which point the sealing device 100 of the ship cable trough penetration can be removed from the inner bore of the cable trough penetration 200.
When the ship cable trough penetrating piece sealing device 100 of the embodiment is used, the whole body of the ship cable trough penetrating piece sealing device 100 can be firstly put into an inner hole of a cable trough penetrating piece 200 from a port of the cable trough penetrating piece 200, then the ship cable trough penetrating piece sealing device is extended to be in pressure contact with the inner hole wall of the cable trough penetrating piece 200 along the radial direction of a stretching rod 5 through a supporting mechanism 4, so that the whole body of the ship cable trough penetrating piece sealing device 100 is supported and fixed in the inner hole of the cable trough penetrating piece 200, then the stretching rod 5 drives a stretching connecting plate 1 to extrude a rubber piece 2 along the direction towards a thrust plate 3 through tightening of a tensioning nut 6, until the outer periphery of the rubber piece 2 is expanded, attached and pressed onto the inner hole wall of the cable trough penetrating piece 200, so that the sealing of the inner hole of the cable trough penetrating piece 200 is realized, and the sealing test of a sealing cabin 300 provided with the cable trough penetrating piece 200 can be carried out; after the test is finished, the tensioning nut 6 is reversely unscrewed, the rubber part 2 is elastically restored to withdraw the expanded and protruded outer peripheral edge, then the supporting mechanism 4 is contracted along the radial direction of the stretching rod 5 to be separated from the inner hole wall of the cable trough penetrating piece 200, and the ship cable trough penetrating piece sealing device 100 can be taken out of the inner hole of the cable trough penetrating piece 200. From this, adopt the boats and ships cable duct penetration piece tightness device 100 of this embodiment can realize the shutoff to cable duct penetration piece 200 port, and, the installation of the boats and ships cable duct penetration piece tightness device 100 of this embodiment in cable duct penetration piece 200 hole and dismantlement all can not cause any destruction to cable duct penetration piece 200 and the cable duct cell body that is connected with this cable duct penetration piece 200, have simple structure, the stable performance, the function realizes the simple operation, easy to carry out's advantage, construction quality and production efficiency can effectively be promoted.
Referring to fig. 1, in the present embodiment, the supporting mechanism 4 preferably includes a supporting cylinder 41 sleeved on the stretching rod 5 and a radial expansion assembly disposed on the outer peripheral surface of the supporting cylinder 41. The inside of the stay 41 is axially penetrated so that the stretching rod 5 can movably pass through. Both ends of the support cylinder 41 are respectively in contact with the thrust plate 3 and the tension nut 6, and the tension nut 6 presses the support cylinder 41 against the thrust plate 3. The radial telescopic assembly is used for realizing the radial telescopic of the support mechanism 4 along the stretching rod 5.
In this embodiment, preferably, referring to fig. 1 and 3, the stay tube 41 includes a tapered tube 411 and a cylindrical tube 412. The tapered cylinder 411 has an outer diameter that becomes gradually smaller from one end thereof to the other end, i.e., the tapered cylinder 411 has one end with a larger outer diameter and one end with a smaller outer diameter. The outer diameter of the cylindrical barrel 412 is smaller than the minimum outer diameter of the tapered barrel 411, and one end of the cylindrical barrel 412 is coaxially connected to the end of the tapered barrel 411 having the smaller outer diameter. The end of tapered cylinder 411 having the larger outer diameter is in contact with thrust plate 3, and the end of cylindrical cylinder 412 remote from tapered cylinder 411 is in contact with tensioning nut 6. The radially expandable and contractible assembly is disposed on the outer peripheral surface of the cylindrical barrel 412.
Preferably, referring to fig. 1 and 3, the radial expansion assembly includes a front coupling disc 42, a spring 43, a top support coupling disc 44, a top support nut 45, and a tie rod expansion structure. The front connecting disc 42, the spring 43 and the top bracing connecting disc 44 are sequentially sleeved on the outer peripheral surface of the cylindrical barrel 412 movably along the axial direction of the cylindrical barrel 412. One end of the cylindrical barrel 412, which is far away from the conical barrel 411, is provided with a top bracing thread section 413, the top bracing thread section 413 is provided with an external thread, the external thread of the top bracing thread section 413 is matched and connected with an internal thread of a top bracing nut 45, and the spring 43 respectively props and presses the front connecting disc 42 and the top bracing connecting disc 44 on the conical barrel 411 and the top bracing nut 45. Thereby, when the top bracing nut 45 is tightened, the top bracing connecting disc 44 is pushed to compress the spring 43 and displace along the direction towards the front connecting disc 42; when the top bracing nut 45 is unscrewed, the top bracing connecting disc 44 can be pushed to displace in the direction away from the front connecting disc 42 by the elastic force of the spring 43. The connecting rod telescopic structure is connected with the front connecting disc 42 and the top bracing connecting disc 44, and the movement of the top bracing connecting disc 44 relative to the front connecting disc 42 can drive the connecting rod telescopic structure to act, so that the telescopic deformation of the connecting rod telescopic structure in the radial direction of the cylindrical barrel 412 is realized, and the radial telescopic of the support mechanism 4 along the stretching rod 5 is realized. The plurality of groups of link telescoping structures are arranged at intervals along the circumference of the cylindrical barrel 412. When the device is used, the multiple groups of connecting rod telescopic structures can be simultaneously extended to be in pressure contact with the inner hole wall of the cable trough penetrating piece 200, so that the multiple groups of connecting rod telescopic structures jointly support and fix the whole ship cable trough penetrating piece sealing device 100 in the inner hole of the cable trough penetrating piece 200, and the stability of the ship cable trough penetrating piece sealing device 100 in the inner hole of the cable trough penetrating piece 200 can be ensured.
Preferably, referring to fig. 1, the link telescoping structure includes a first stay 46 and a second stay 47, one end of the first stay 46 is hinged to the front connection plate 42, one end of the second stay 47 is hinged to the top connection plate 44, a middle portion of the first stay 46 is hinged to a middle portion of the second stay 47, the first stay 46 and the second stay 47 are connected in a cross manner, and the other end of the first stay 46 and the other end of the second stay 47 are both used for contacting an inner hole wall of the cable trough penetrating member 200. When the top bracing connecting disc 44 displaces relative to the front connecting disc 42, the top bracing connecting disc acts on the second stay bar 47, so that the second stay bar 47 and the first stay bar 46 rotate around a hinge point between the middle parts of the second stay bar and the first stay bar 46, and the rotation directions of the second stay bar and the first stay bar 46 are opposite, thereby realizing the radial extension or retraction of the first stay bar 46 and the second stay bar 47 along the cylindrical barrel 412, namely realizing the telescopic deformation of the telescopic structure of the connecting rod in the radial direction of the cylindrical barrel 412. In this embodiment, the outer edge of the front connecting disc 42 may be formed with a first notch, and the first stay 46 may be hinged in the first notch of the outer edge of the front connecting disc 42 by a first inserting pin 461. The outer edge of the top bracing connecting disc 44 may be provided with a second notch, and the second brace rod 47 may be hinged in the second notch of the outer edge of the top bracing connecting disc 44 through a second inserting pin 471. The middle portion of the first stay 46 and the middle portion of the second stay 47 may be hinged by a connection pin 48. Preferably, a through long hole 470 may be formed in the middle of the second stay 47, the first stay 46 is movably disposed through the long hole 470 of the second stay 47, and the middle of the first stay 46 is hinged to the middle of the long hole 470 of the second stay 47 through the connecting pin 48.
Referring to fig. 1, in the present embodiment, preferably, an anti-slip sleeve 49 is disposed at both an end of the first stay 46 away from the front connecting plate 42 and an end of the second stay 47 away from the top connecting plate 44, and the anti-slip sleeve 49 is made of a material with a certain friction coefficient. The first stay bar 46 and the second stay bar 47 are contacted with the inner hole wall of the cable trough penetrating piece 200 through the anti-slip sleeve 49 when extending out, which is beneficial to increase the contact stability of the first stay bar 46 and the second stay bar 47 with the inner hole wall of the cable trough penetrating piece 200, thereby increasing the support stability of the support mechanism 4 in the inner hole of the cable trough penetrating piece 200. The slip-preventing bush 49 may be mounted on the first stay 46 (or the second stay 47) through a slip-preventing pin 491.
In this embodiment, preferably, the stretching rod 5 penetrates through the center positions of the rubber member 2 and the thrust plate 3 and is connected to the center position of the stretching connecting plate 1, so that the axis of the stretching rod 5 coincides with the central axis of the whole tightness device 100 for the ship cable trough penetration member, and the multiple groups of connecting rod extending structures are arranged in a central symmetry manner in the circumferential direction of the cylindrical barrel 412, which is beneficial to realizing the coincidence of the central axis of the tightness device 100 for the ship cable trough penetration member and the axis of the inner hole of the cable trough penetration member 200, i.e. realizing the centered installation and fixation of the whole tightness device 100 for the ship cable trough penetration member in the inner hole of the cable trough penetration member 200. Referring to fig. 4, in the present embodiment, preferably, a set of link telescoping structures is respectively disposed at positions corresponding to four corners of the tensile connecting plate 1 in the circumferential direction of the cylindrical barrel 412.
Referring to fig. 5 and 6, an embodiment of the present invention further provides a method for using the ship cable trough penetration sealing device 100 of the present embodiment, which sequentially includes the following steps:
step one, the cover plate of the cable groove connected with the cable groove penetration piece 200 in the empty cabin 400 next to the airtight cabin 300 is removed.
Step two, the ship cable trough penetration sealing device 100 is placed into the inner hole of the cable trough penetration 200 from the port of the cable trough penetration 200.
And step three, extending the supporting mechanism 4 along the radial direction of the stretching rod 5 until the supporting mechanism is in pressure contact with the inner hole wall of the cable trough penetrating piece 200. The method comprises the following specific steps: firstly, preliminarily pre-tightening the top support nut 45 on the cylindrical barrel 412 of the support barrel 41, and further adjusting the orientation of the support mechanism 4 to enable the four groups of connecting rod telescopic structures to respectively face four corners of the inner hole of the cable trough penetrating piece 200; and then the top support nut 45 is screwed down, the top support connecting disc 44 is pushed to compress the spring 43 and move along the direction towards the front connecting disc 42, the top support connecting disc 44 pushes the second support rod 47 of the four-group connecting rod telescopic structure, so that the first support rod 46 and the second support rod 47 of the four-group connecting rod telescopic structure extend out along the radial direction of the cylindrical barrel 412 until all the anti-skid sleeves 49 at the end parts of the first support rod 46 and the second support rod 47 are pressed on the hole walls at the four corners of the inner hole of the cable trough penetrating piece 200. Thereby supporting and fixing the entire vessel cable trough penetration tightness device 100 centrally in the inner bore of the cable trough penetration 200.
And step four, tightening a tensioning nut 6 on the stretching rod 5 to enable the stretching rod 5 to drive the stretching connecting plate 1 to extrude the rubber piece 2 along the direction towards the thrust plate 3 until the outer peripheral edge of the rubber piece 2 is expanded, attached and pressed onto the inner hole wall of the cable trough penetrating piece 200, so that the inner hole of the cable trough penetrating piece 200 is sealed.
And step five, performing a tightness test on the tightness chamber 300.
Step six, after the tightness test is finished, reversely unscrewing the tensioning nut 6 to enable the rubber part 2 to recover the elasticity and to retract the expanded and protruded outer peripheral edge; and the supporting mechanism 4 is contracted along the radial direction of the stretching rod 5 to leave the inner hole wall of the cable trough penetrating piece 200, specifically: reversely unscrewing the top support nut 45, pushing the top support connecting disc 44 to move in a direction away from the front connecting disc 42 by the elastic force of the spring 43, pulling the second support rods 47 of the four groups of connecting rod telescopic structures by the top support connecting disc 44, and enabling the first support rods 46 and the second support rods 47 of the four groups of connecting rod telescopic structures to radially retract along the cylindrical barrel 412 until all the anti-skidding sleeves 49 at the ends of the first support rods 46 and the second support rods 47 are separated from the hole walls at the four corners of the inner hole of the cable trough penetrating piece 200; the marine cable trough penetration tightness device 100 is then removed from the inner bore of the cable trough penetration 200.
From this, accomplished the disposable of boats and ships cable duct penetration piece leakproofness device 100, whole use operation is convenient, easy to carry out, can satisfy the requirement of the sealed shutoff of cable duct penetration piece 200 among the boats and ships confidentiality cabin 300 tightness test to can not cause any destruction to cable duct penetration piece 200 and the cable duct cell body that is connected with this cable duct penetration piece 200, be favorable to practicing thrift the cost, improve production efficiency and product quality.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (5)
1. The tightness device for the ship cable trough penetrating piece is characterized by comprising a stretching connecting plate (1), a rubber piece (2) arranged on the stretching connecting plate (1), a thrust plate (3) arranged on the rubber piece (2), a supporting mechanism (4) arranged on the thrust plate (3) and a stretching rod (5) movably penetrating through the rubber piece (2), the thrust plate (3) and the supporting mechanism (4), wherein one end of the stretching rod (5) is fixedly connected with the stretching connecting plate (1), the other end of the stretching rod is provided with a tensioning threaded section (51) in threaded connection with a tensioning nut (6), the tensioning nut (6) is in pressure contact with one end, far away from the thrust plate (3), of the supporting mechanism (4), the stretching connecting plate (1), the rubber piece (2) and the thrust plate (3) are rectangular in shape matched with the cross section of an inner hole of the cable trough penetrating piece (200), and the supporting mechanism (4) can be in contact with or separated from the inner hole of the cable trough penetrating piece (200) along the radial expansion of the stretching rod (5); the supporting mechanism (4) comprises a supporting cylinder (41) sleeved on the stretching rod (5) and a radial telescopic assembly arranged on the peripheral surface of the supporting cylinder (41), and two ends of the supporting cylinder (41) are respectively contacted with the thrust plate (3) and the tensioning nut (6); the supporting cylinder (41) comprises a conical cylinder (411) and a cylindrical cylinder (412) which is coaxially connected with one end of the conical cylinder (411) with the smaller outer diameter, the outer diameter of the cylindrical cylinder (412) is smaller than the minimum outer diameter of the conical cylinder (411), one end of the conical cylinder (411) with the larger outer diameter is in contact with the thrust plate (3), and one end of the cylindrical cylinder (412) far away from the conical cylinder (411) is in contact with the tensioning nut (6); the radial telescopic assembly is arranged on the outer peripheral surface of the cylindrical barrel (412); the radial telescopic assembly comprises a front connecting disc (42), a spring (43), a top support connecting disc (44) and a plurality of groups of connecting rod telescopic structures, wherein the front connecting disc (42), the spring (43) and the top support connecting disc (44) are sequentially and movably sleeved on the outer peripheral surface of the cylindrical barrel (412) along the axial direction of the cylindrical barrel (412), the groups of connecting rod telescopic structures are arranged at intervals along the circumferential direction of the cylindrical barrel (412), one end, far away from the tapered barrel (411), of the cylindrical barrel (412) is provided with a top support threaded section (413) in threaded connection with a top support nut (45), the spring (43) enables the front connecting disc (42) and the top support connecting disc (44) to be respectively pressed on the tapered barrel (411) and the top support nut (45), and the connecting rod telescopic structures are connected with the front connecting disc (42) and the top support connecting disc (44).
2. The ship cable duct penetration tightness device according to claim 1, wherein the link telescoping structure comprises a first stay (46) having one end hinged to the front connection plate (42) and a second stay (47) having one end hinged to the top connection plate (44), and a middle portion of the first stay (46) is hinged to a middle portion of the second stay (47).
3. Device for tightness of ship cable trough penetration according to claim 2, characterized in that the end of the first stay (46) remote from the front connection plate (42) and the end of the second stay (47) remote from the top connection plate (44) are provided with anti-slip sleeves (49).
4. The marine cable trough penetration tightness device according to claim 1, wherein a set of said link telescoping structures are provided at positions corresponding to four corners of said tension link plate (1) in a circumferential direction of said cylindrical tube (412).
5. The use of the sealing device for a ship cable trough penetration piece according to any one of claims 1 to 4, characterized by comprising the following steps in sequence:
step one, a cover plate of a cable groove connected with a cable groove penetrating piece (200) in a partition empty cabin (400) of a sealing cabin (300) is removed;
step two, placing the ship cable trough penetrating piece sealing device into an inner hole of the cable trough penetrating piece (200);
step three, extending the supporting mechanism (4) along the radial direction of the stretching rod (5) to be in pressure contact with the inner hole wall of the cable trough penetrating piece (200);
step four, tightening the tensioning nut (6) to enable the stretching rod (5) to drive the stretching connecting plate (1) to extrude the rubber piece (2) along the direction towards the thrust plate (3) until the outer peripheral edge of the rubber piece (2) is expanded and attached to the inner hole wall of the cable trough penetrating piece (200);
step five, performing a tightness test on the tightness cabin (300);
and sixthly, after the tightness test is finished, reversely unscrewing the tensioning nut (6), enabling the supporting mechanism (4) to contract along the radial direction of the stretching rod (5) to be separated from the inner hole wall of the cable trough penetrating piece (200), and then taking out the tightness device of the ship cable trough penetrating piece from the inner hole of the cable trough penetrating piece (200).
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| CN202011328199.2A CN112460258B (en) | 2020-11-24 | 2020-11-24 | Ship cable trough penetrating piece sealing device and using method thereof |
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| CN202011328199.2A CN112460258B (en) | 2020-11-24 | 2020-11-24 | Ship cable trough penetrating piece sealing device and using method thereof |
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