CN214013841U - Cable sealing device for underwater equipment - Google Patents
Cable sealing device for underwater equipment Download PDFInfo
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- CN214013841U CN214013841U CN202022548680.4U CN202022548680U CN214013841U CN 214013841 U CN214013841 U CN 214013841U CN 202022548680 U CN202022548680 U CN 202022548680U CN 214013841 U CN214013841 U CN 214013841U
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Abstract
The utility model provides an underwater equipment cable sealing device, belongs to electrical equipment sealing device technical field for seal the cable of underwater equipment. The technical scheme is as follows: lower seal and upper seal body are flat cylinder respectively, there is the cable mounting hole lower seal and upper seal body's center, the bottom surface of lower seal body and underwater equipment's cable access hole department fixed connection, the upper seal body is placed on the lower seal body, the cable mounting hole coaxial relative of upper seal body and lower seal body, the upper seal body is connected by the bolt with lower seal body, there is the annular groove of connecting as an organic whole on the inner wall of the cable mounting hole of upper seal body and lower seal body, high-elastic seal cover inlays in the annular groove, the hole cover of high-elastic seal cover is on the cable, the length of high-elastic seal cover free state is greater than the height of annular groove. The utility model discloses simple structure, convenient to use can realize reliably sealed, can conveniently change the cable simultaneously, no longer adopt epoxy, silica gel or other secondary seal.
Description
Technical Field
The utility model relates to a device that seals up underwater equipment's cable belongs to electrical equipment sealing device technical field.
Background
The cable that leads out that electromechanical integral type low pressure (below 400V) underwater equipment adapted motor must have reliable sealed with the motor body, if the cable seal damages, can directly cause the cable to blow out, even the motor burns out, and this not only influences production normal clear, causes huge cost of maintenance moreover. At present, the cable seal of the industrial underwater equipment mainly adopts a sealing filler, a mechanical seal, an epoxy resin, a silica gel seal or other secondary seal combination forms, and although the technology is continuously optimized and improved, the failure fault of the cable seal still accounts for a large proportion. In particular, in the production of the steel industry, a large number of diving equipments are used, most of which are used in over-high or over-low temperature media containing a large amount of silt, metal particles or acid-base-containing liquid, and the using environment is poor, and the underwater equipment cable can bear soaking and large water pressure for a long time, which all present greater challenges for the cable sealing of the underwater equipment. According to incomplete statistics of relevant units, 68% of submersible equipment motors are subjected to short circuit blasting and winding burnout and are related to cable sealing failure, so that stable and smooth production is severely restricted, and therefore, the problem of reliability of underwater cable sealing is an important task for enterprises and technicians.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a provide an underwater equipment cable sealing device, this kind of cable sealing device can make the inlet wire room and the fluid medium of cable keep apart completely, realizes reliably sealed, can conveniently change the cable simultaneously, no longer adopts epoxy, silica gel or other secondary seal.
The technical scheme for solving the technical problems is as follows:
a cable sealing device for underwater equipment comprises a lower sealing body, an upper sealing body, a high-elastic sealing sleeve, wherein the lower sealing body and the upper sealing body are respectively flat cylinders, cable mounting holes are formed in the centers of the flat cylinders of the lower sealing body and the upper sealing body, the bottom surface of the lower sealing body is fixedly connected with cable access holes of the underwater equipment, the upper sealing body is placed above the lower sealing body, the lower bottom surface of the upper sealing body is opposite to the upper top surface of the lower sealing body, the cable mounting holes of the upper sealing body and the lower sealing body are coaxially opposite, the upper sealing body and the lower sealing body are connected through bolts, annular grooves which are integrally connected are formed in the inner walls of the cable mounting holes of the upper sealing body and the lower sealing body, and the high-elastic sealing sleeve is embedded in the annular grooves, the outer wall of high-elastic seal cover contacts with the inner wall of annular groove, and the inner hole wall of high-elastic seal cover is at the outer wall of cable, and the length of the free state of high-elastic seal cover is greater than the height of annular groove.
Above-mentioned underwater equipment cable sealing device, high-elastic seal cover is two, and two high-elastic seal covers overlap and place, and the both ends of two high-elastic seal covers have the plain washer respectively, and the plain washer surface in two high-elastic seal covers outsides is relative with the top surface of annular groove, has placed the pretension ring between the plain washer of two high-elastic seal covers inboards, and the pretension ring is annular stainless steel ring, and the pretension ring is located between annular groove inner wall and the cable outer wall.
Above-mentioned underwater equipment cable sealing device, the upper portion of the cable mounting hole of upper seal body is the toper, and the conical big diameter end is located the last top surface of upper seal body, and the both sides of upper seal body have the connecting hole respectively, have corresponding screw on the lower seal body, and fastening bolt passes through connecting hole and screw fastening connection with lower seal body with the upper seal body.
According to the cable sealing device for the underwater equipment, the bottom surface of the lower sealing body is connected with the cable access hole of the underwater equipment in a welding mode, or the lower sealing body is provided with the connecting hole, the periphery of the cable access hole of the underwater equipment is provided with the corresponding screw hole, and the lower sealing body is fixedly connected with the underwater equipment through the connecting hole and the screw hole through the connecting bolt.
Above-mentioned underwater equipment cable sealing device, have corresponding annular seal groove on the lower bottom surface of upper seal body and the last top surface of lower seal body respectively, it has O type circle to inlay in the annular seal groove, has annular seal groove on the lower seal body bottom surface of passing through connecting bolt with underwater equipment, has O type circle to inlay in the annular seal groove.
The utility model has the advantages that:
the utility model adopts the upper sealing body and the lower sealing body to form the sealing chamber, and the O-shaped ring is arranged between the upper sealing body and the lower sealing body for sealing, so that the sealing chamber is completely isolated from the fluid medium; place high-elastic seal cover in the sealed chamber, go up the seal and extrude high-elastic seal cover when sealing down the body coupling, circumference inflation carries out elastic sealing to the cable behind the high-elastic seal cover pressurized.
The utility model discloses simple structure, convenient to use can implement reliably sealedly to the cable under long-term soaking and great water pressure, especially in no more than 90 ℃ of water temperature, high-elastic rubber more has compliance and high elasticity, and reaches good sealed effect. Meanwhile, the cable can be conveniently replaced, and epoxy, silica gel or other secondary sealing is not adopted. The utility model discloses more reliable, strong adaptability, durability are good than traditional cable sealing under water mode, can use widely.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the present invention connected to underwater equipment by connecting bolts;
FIG. 3 is a side view of the upper seal body;
fig. 4 is a top view of fig. 3.
The figures are labeled as follows: the sealing structure comprises a lower sealing body 1, an upper sealing body 2, a cable mounting hole 3, a high-elastic sealing sleeve 4, an annular groove 5, a flat gasket 6, a pre-tightening ring 7, a connecting hole 8, a screw hole 9, a fastening bolt 10, an annular sealing groove 11, an o-shaped ring 12 and a cable 13.
Detailed Description
The utility model discloses constitute by lower seal body 1, upper seal body 2, high-elastic seal cover 4, plain washer 6, pretension ring 7, fastening bolt 10, o type circle 12.
Fig. 1 and 2 show that the lower sealing body 1 and the upper sealing body 2 are respectively flat cylinders, and the centers of the flat cylinders of the lower sealing body 1 and the upper sealing body 2 are provided with cable mounting holes 3 for passing cables 13. The upper seal body 2 is placed above the lower seal body 1, the lower bottom surface of the upper seal body 2 is opposite to the upper top surface of the lower seal body 1, the cable mounting holes 3 of the upper seal body 2 and the lower seal body 1 are coaxially opposite, and the upper seal body 2 and the lower seal body 1 are connected through fastening bolts 10. The lower bottom surface of the upper sealing body 2 and the upper top surface of the lower sealing body 1 are respectively provided with a corresponding annular sealing groove 11, and a 0-shaped ring 12 is embedded in the annular sealing groove 11 to effectively seal the two sealing bodies.
Fig. 3 and 4 show that the upper part of the cable installation hole 3 of the upper sealing body 2 is conical, the conical large-diameter end is positioned on the upper top surface of the upper sealing body 2, and the lower part of the cable installation hole 3 has the same diameter as the conical small-diameter end, so that the cable 13 can be conveniently inserted. The two sides of the upper sealing body 2 are respectively provided with a connecting hole 8, the lower sealing body 1 is provided with a corresponding screw hole 9, and the upper sealing body 2 and the lower sealing body 1 are fixedly connected through the connecting holes 8 and the screw holes 9 by fastening bolts 19.
Fig. 1 and 2 show that the bottom surface of the lower sealing body 1 is fixedly connected with a cable access hole of underwater equipment, and the connection can adopt two forms. One is as shown in figure 1, the bottom surface of the lower sealing body 1 is welded with the cable access hole of the underwater equipment, the other is as shown in figure 2, the lower sealing body 1 is provided with a connecting hole, the periphery of the cable access hole of the underwater equipment is provided with a corresponding screw hole, and the connecting bolt fastens and connects the lower sealing body 1 and the underwater equipment through the connecting hole and the screw hole. An annular sealing groove 11 is formed in the bottom surface of the lower sealing body 1, an o-shaped ring 12 is embedded in the annular sealing groove 11, and the lower sealing body 1 and underwater equipment are effectively sealed.
Fig. 1, 2 show, have the annular groove 5 of the same diameter on the inner wall of the cable mounting hole 3 of the upper seal body 2 and lower seal body 1, the annular groove 5 of the upper seal body 2 and lower seal body 1 is connected as an organic whole, high-elastic seal cover 4 inlays in annular groove 5, the outer wall of high-elastic seal cover 4 and the inner wall in close contact with of annular groove 5, the inner hole wall cover of high-elastic seal cover 4 is on cable 13, the length of the free state of high-elastic seal cover 4 is greater than the height of annular groove 5, so that when compressing tightly high-elastic seal cover 4, high-elastic seal cover 4 can seal to the circumference inflation.
The high-elastic sealing sleeve 4 is at least reserved with a pre-tightening length of 10 mm. When the upper sealing body 2 is tightly connected with the lower sealing body 1, the high-elastic sealing sleeve 4 is extruded in the axial direction to generate radial expansion, so that the outer circumferential wall of the high-elastic sealing sleeve 4 is in close contact with the inner wall of the annular groove 5, the inner hole wall of the high-elastic sealing sleeve 4 is in close contact with the outer wall of the cable 13, and the expansion sealing effect is achieved.
Fig. 1 and 2 show that the high-elastic sealing sleeve 4 can be one or more, and the utility model discloses a two. Two high-elastic seal covers 4 overlap and place, and two high-elastic seal covers 4's both ends have plain washer 6 respectively, and the plain washer 6 surface in two high-elastic seal covers 4 outside is relative with annular groove 5's top surface, has placed pretension ring 7 between two high-elastic seal cover 4 inboard plain washers 6, and pretension ring 7 is annular stainless steel ring, and pretension ring 7 is located between 5 inner walls of annular groove and the cable outer wall.
The utility model discloses a cable 13 is the waterproof rubber sleeve cable of underwater equipment, and the sheath adopts the flexible wear-resisting polyurethane of high strength best. The outer diameter of the cable 13 is matched with the diameter of the inner hole of the high-elastic sealing sleeve 4, and reliable tolerance fit is achieved. The high-elasticity sealing sleeve 4 is made of high-elasticity high-strength flexible wear-resistant polyurethane or other high-elasticity high-wear-resistance pure rubber, the outer diameter of the high-elasticity sealing sleeve 4 is matched with the size of an inner hole of the annular groove 5, and reliable tolerance fit is achieved. The flat washer 6 and the pre-tightening ring 7 are made of high-strength stainless steel and are not deformed in the extrusion process.
The utility model discloses a use method as follows:
firstly, installing a lower sealing body 1 at a cable access port of underwater equipment, fixedly connecting the lower sealing body 1 with the underwater equipment by adopting a welding method or a bolt connection method, and installing an O-shaped ring 12 in an annular sealing groove 11 on the bottom surface of the lower sealing body 1;
then, the upper sealing body 2 is placed above the lower sealing body 1, the lower bottom surface of the upper sealing body 2 is opposite to the upper top surface of the lower sealing body 1, and the cable mounting holes 3 of the upper sealing body 2 and the lower sealing body 1 are coaxially opposite;
when the upper sealing body 2 is butted with the lower sealing body 1, the flat gasket 6, the high-elastic sealing sleeve 4 and the pre-tightening ring 7 are placed in the annular groove 5 on the inner wall of the cable mounting hole 3 of the upper sealing body 2 and the lower sealing body 1, and a cable 13 is penetrated;
after the lower sealing body 1, the upper sealing body 2, the high-elastic sealing sleeve 4, the flat gasket 6, the pre-tightening ring 7 and the cable 13 are placed in place, the lower sealing body 1 and the upper sealing body 2 are fastened by using a fastening bolt 10, and an o-shaped ring 12 is placed in an annular sealing groove 11 between the lower sealing body 1 and the upper sealing body 2 during fastening;
finally, the fastening bolt 10 enables the upper sealing body 2 and the lower sealing body 1 to be tightly connected, and the high-elasticity sealing sleeve 4 can expand in the radial direction when being extruded in the axial direction, so that the high-elasticity sealing sleeve 4 can seal the cable 13.
The utility model discloses an embodiment as follows:
the lower sealing body 1 is welded with underwater equipment, the height of the lower sealing body 1 is 35mm, the outer diameter of the lower sealing body is 160mm, and the diameter of a cable mounting hole is 55mm and is the same as that of the conical small-diameter end;
the height of the upper sealing body 2 is 55mm, the outer diameter is 150mm, and the tapered large-diameter end of the cable mounting hole 3 is 63 mm;
the diameters of the annular grooves 5 of the lower sealing body 1 and the upper sealing body 2 are 70mm, and the height of the annular groove of the upper sealing body 2 is 26 mm; the height of the annular groove of the lower sealing body 1 is 30mm
The high-elasticity sealing sleeve 4 has the outer diameter of 70mm, the inner diameter of 36mm and the height of 20mm.
The outer diameter of the flat gasket 6 is 70mm, the inner diameter is 40mm, and the thickness is 2 mm;
the external diameter of the pre-tightening ring 7 is 70mm, the internal diameter is 62mm, and the height is 18 mm;
the fastening bolt 10 is an M14 countersunk head bolt;
the diameter of the cable 13 is 36 mm.
Claims (5)
1. An underwater equipment cable sealing device which characterized in that: it includes lower seal body (1), the upper seal body (2), high-elastic seal cover (4), lower seal body (1) and upper seal body (2) are flat cylinder respectively, there are cable mounting hole (3) respectively at the center of the flat cylinder of lower seal body (1) and upper seal body (2), the bottom surface of lower seal body (1) and the cable access hole department fixed connection of underwater equipment, upper seal body (2) are placed in the top of lower seal body (1), the lower bottom surface of upper seal body (2) is relative with the last top surface of lower seal body (1), the cable mounting hole (3) coaxial relative of upper seal body (2) and lower seal body (1), upper seal body (2) and lower seal body (1) are connected by fastening bolt (10), there is annular recess (5) as an organic whole on the inner wall of cable mounting hole (3) of upper seal body (2) and lower seal body (1), high-elastic sealing sleeve (4) inlays in annular groove (5), and the outer wall of high-elastic sealing sleeve (4) contacts with the inner wall of annular groove (5), and the inner hole wall cover of high-elastic sealing sleeve (4) is on the outer wall of cable (13), and the length of high-elastic sealing sleeve (4) free state is greater than the height of annular groove (5).
2. The subsea equipment cable seal arrangement of claim 1, wherein: high-elastic seal cover (4) are two, and two high-elastic seal covers (4) overlap and place, and there are plain washer (6) at the both ends of two high-elastic seal covers (4) respectively, and plain washer (6) surface in two high-elastic seal covers (4) outsides is relative with the top surface of annular groove (5), has placed pretension ring (7) between plain washer (6) of two high-elastic seal covers (4) inboards, and pretension ring (7) are annular stainless steel ring, and pretension ring (7) are located between annular groove inner wall and the cable outer wall.
3. The subsea equipment cable seal arrangement of claim 1, wherein: the upper portion of cable mounting hole (3) of upper seal body (2) is the toper, and conical big diameter end is located the last top surface of upper seal body (2), and there are connecting hole (8) respectively in the both sides of upper seal body (2), has corresponding screw (9) on lower seal body (1), and fastening bolt (10) are with upper seal body (2) and lower seal body (1) through connecting hole (8) and screw (9) fastening connection.
4. The subsea equipment cable seal arrangement of claim 1, wherein: the bottom surface of the lower sealing body (1) is connected with the cable access hole of the underwater equipment in a welding mode, or the lower sealing body (1) is provided with a connecting hole, a corresponding screw hole is formed in the periphery of the cable access hole of the underwater equipment, and the lower sealing body (1) and the underwater equipment are fixedly connected through the connecting hole and the screw hole through a connecting bolt.
5. The subsea equipment cable seal arrangement of claim 1, wherein: and the lower bottom surface of the upper sealing body (2) and the upper top surface of the lower sealing body (1) are respectively provided with a corresponding annular sealing groove (11), and an O-shaped ring (12) is embedded in the annular sealing groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022548680.4U CN214013841U (en) | 2020-11-06 | 2020-11-06 | Cable sealing device for underwater equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022548680.4U CN214013841U (en) | 2020-11-06 | 2020-11-06 | Cable sealing device for underwater equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214013841U true CN214013841U (en) | 2021-08-20 |
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ID=77303333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022548680.4U Active CN214013841U (en) | 2020-11-06 | 2020-11-06 | Cable sealing device for underwater equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214013841U (en) |
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2020
- 2020-11-06 CN CN202022548680.4U patent/CN214013841U/en active Active
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