CN201174543Y - Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall - Google Patents
Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall Download PDFInfo
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- CN201174543Y CN201174543Y CNU2008200091227U CN200820009122U CN201174543Y CN 201174543 Y CN201174543 Y CN 201174543Y CN U2008200091227 U CNU2008200091227 U CN U2008200091227U CN 200820009122 U CN200820009122 U CN 200820009122U CN 201174543 Y CN201174543 Y CN 201174543Y
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- 238000007789 sealing Methods 0.000 title claims abstract description 94
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 60
- 238000010276 construction Methods 0.000 title 1
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims description 17
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
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- 238000009434 installation Methods 0.000 description 8
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- 230000008878 coupling Effects 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
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- 230000002457 bidirectional effect Effects 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
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- Laying Of Electric Cables Or Lines Outside (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The utility model relates to a wall-through sealing structure for cables or pipelines inside and outside a locomotive chamber; the structure comprises a pedestal with one end fixed on a pylome of a locomotive wall board; the middle section of the inside of the pedestal is provided with a tapered hole which increasingly expands from one end to the other end; two rubber sealing pieces are involuted with each other and arranged in the pedestal from the other end of the pedestal; the central parts of two rubber sealing pieces are provided with semicircular grooves which can be involuted to form a circular hole; the outer surfaces of the inserted ends of two rubber sealing pieces are respectively provided with a conical surface matched with the tapered hole; a locking piece is spirally fixed on the other end of the pedestal; the inner side of the locking surface is pressed on the upper ends of two sealing pieces; a through hole is arranged on the locking piece; the diameter of the semicircular groove is equal to the diameter of the cable or the pipeline; and the radial dimensions of the through hole of a cover body and the smallest aperture of the pedestal are more than or equal to the dimension of a plug connected with the cable or a pipe joint connected with the pipeline. The sealing structure has reliable sealing, waterproof and dustproof effects and can be used for the wall-through sealing of the cable with the plug and the pipeline with the pipe joint.
Description
Technical Field
The utility model relates to a be used for indoor outer cable of locomotive or pipeline to wear sealed sealing member of wall, especially an indoor outer wall seal structure that wears of taking plug cable or taking coupling pipeline on being fit for the locomotive.
Background
On an electric locomotive, cables and pipelines in the locomotive room are often required to be connected with electric equipment and pneumatic equipment outside the locomotive room, namely the cables and the pipelines independently penetrate through inner and outer wall plates of the locomotive room; therefore, in the part where the cable or pipe passes through the wall from the indoor to the outdoor, the sealing problem of water and dust prevention must be solved.
At present, the following methods for solving the problem of independent wall penetration of indoor and outdoor cables of an electric locomotive are provided: (1) the long end of the eta-shaped pipe is welded in a hole of a locomotive top plate by adopting a method of welding the eta-shaped pipe outside a locomotive room, and a cable passes through the eta-shaped pipe from the outside to the inside. The method has the advantages of simple structure and waterproof function; the disadvantages are that it must be mounted vertically, is not dustproof and is not suitable for the cable with plug to pass through. (2) The method of adopting the universal wire-passing sealing element has the advantages of good waterproof and dustproof performance; the assembly is convenient when the wire is passed; the disadvantage is that it is not suitable for cable entries with plugs. (3) The cable-passing sealing element suitable for being provided with the plug and produced abroad is adopted, and the method has the advantages of good waterproof and dustproof performances; the cable is suitable for passing a cable with a plug; the sealing device has the disadvantages that the foreign produced wire-passing sealing element has a complex structure, is generally horizontally installed and is not suitable for vertical installation, and the installation and fixation position of the wire-passing sealing element and the wallboard is sealed by adopting a sealing ring plane, so that the whole wire-passing sealing element is in elastic contact with the wallboard and cannot be firmly and reliably fixed; and the assembly operation is inconvenient when the wire is passed.
On the other hand, the current method for solving the problem of wall penetration of indoor and outdoor pipelines of the electric locomotive is as follows: a bidirectional pipe connector is welded in a hole of a locomotive roof, one pipeline is divided into two pipes which are indoor and outdoor, and the two pipes are respectively connected with the bidirectional pipe connector through pipe joints of the two pipes which are indoor and outdoor, so that the through-wall communication of the pipelines is realized. The method has the advantage of good waterproof and dustproof performance. The defect is that one pipeline consists of two indoor and outdoor pipes, and two pipe joints are added.
In view of the defects in the prior art, the designer provides a sealing element which can be used for sealing the wall of an indoor cable and an outdoor cable of a locomotive and sealing a pipeline wall by means of abundant design development and actual manufacturing experience of the related industry for many years and aiming at the improvement of the existing structural research so as to overcome the defects of the existing structure.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides an indoor outer cable of locomotive or pipeline wear wall seal structure, this structure is fit for taking the plug cable or taking the indoor outer wall seal of wearing of coupling pipeline on the locomotive, and this seal structure's overall structure is simple, can be at arbitrary angle installation, can be firmly reliable fixed, the equipment operation of being convenient for when crossing the line and passing through the pipe.
The utility model aims at realizing like this, an indoor outer cable of locomotive or pipeline wear wall seal structure, this structure includes:
the base is a circular pipe body, one end of the base is fixedly arranged on a through hole of the locomotive wallboard, and the outer side of the other end of the base is provided with a threaded section; a conical hole gradually expanding from one end to the other end is formed in the middle section in the base;
the two rubber sealing pieces are respectively half cylinders which can be folded to form a cylinder shape; the central parts of the two sealing pieces are provided with semicircular grooves which can be closed to form circular holes; the two sealing elements are mutually opposite and are arranged in the base from the other end of the base, and the outer surfaces of the arrangement ends of the two sealing elements are provided with conical surfaces matched with the conical holes;
the locking piece is a cover body provided with internal threads, a through hole is formed in the cover body, the locking piece is spirally fixed to the other end of the base, and the inner side face of the cover body is pressed at the upper end of the sealing piece;
the diameter of the semicircular groove is the same as that of the cable or the pipeline; the radial size of the through hole on the cover body and the minimum aperture in the base is more than or equal to the size of a plug connected with a cable or a pipe joint connected with a pipeline.
In a preferred embodiment of the present invention, the base is welded and fixed to the through hole of the wall plate of the motorcycle.
In a preferred embodiment of the present invention, one end of the base passes through the through hole of the locomotive wall panel and is provided with an extension section, and the outer wall of the extension section is provided with a thread; a fastening nut is connected to the extension.
The present invention provides a preferred embodiment, the fixing portion of the base and the locomotive wallboard is provided with an annular positioning portion, a side surface of the annular positioning portion contacting with the wallboard is provided with an annular groove, and an O-shaped sealing ring is arranged in the annular groove.
In a preferred embodiment of the present invention, the upper ends of the two sealing members respectively form a radially reduced semi-circular step portion; the shaft shoulder of the step part is provided with an inclined angle inclined towards the built-in end of the step part; a circular pressing sleeve is arranged between the locking piece and the sealing piece, the pressing sleeve is sleeved on the step part of the sealing piece, a chamfer gradually expanding from inside to outside is formed by the pressing sleeve and the contact end of the shaft shoulder, and the inclination angle of the chamfer is the same as that of the inclination angle; the aperture of the pressing sleeve is larger than or equal to the size of a plug connected with a cable or a pipe joint connected with a pipeline.
In a preferred embodiment of the present invention, the base, the locking member and the pressing sleeve are made of stainless steel.
In a preferred embodiment of the present invention, the connecting thread of the locking member and the other end of the base is a fine thread.
In a preferred embodiment of the present invention, the sealing member is made of epdm or oil-resistant rubber.
In a preferred embodiment of the present invention, the locomotive wallboard is a locomotive top cover plate.
The utility model discloses an indoor outer cable of locomotive or pipeline wear wall seal structure compares with prior art and has following advantage:
1. the utility model discloses an indoor outer cable of locomotive or pipeline wear wall seal structure sealed reliable, waterproof dustproof effectual.
2. The utility model discloses an indoor outer cable of locomotive or pipeline wear wall seal structure both can be used to the wall of wearing of cable sealed, can be used to the wall of wearing of pipeline sealed again.
3. The utility model discloses an indoor outer cable of locomotive or pipeline wear wall seal structure are applicable to the wall of wearing of taking the plug cable and taking the coupling pipeline sealed.
4. The utility model discloses a wall seal structure is worn to indoor outer cable of locomotive or pipeline, its overall structure is simple, low in manufacturing cost, can install at arbitrary angle, adopts the sealing washer slot to seal with the installation fixed position of wallboard, makes the whole and wallboard rigid contact of line seal spare of crossing, can be firm reliable fixed; the assembly operation is convenient when the wire passes through the tube.
5. The utility model discloses an indoor outer cable of locomotive or pipeline wear wall seal structure, except general screw-thread fastening mounting means, be used for the easy welding roof's of locomotive welding mounting means in addition, the structure of the wall sealing member of welding mounting means is simpler, and manufacturing cost is lower.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
FIG. 1: is a schematic diagram of an exploded structure of an embodiment of the present invention;
FIG. 2: is a schematic view of a through-wall sealing structure for a cable with a plug of the utility model;
FIG. 3: is a schematic diagram of a through-wall sealing structure for a pipeline with a pipe joint of the utility model;
FIG. 4: is a schematic diagram of the connection between the cable and the locomotive outdoor electrical equipment in the utility model;
FIG. 5: is a structural schematic diagram of the base in the utility model;
FIG. 6: is another structure schematic diagram of the base in the utility model;
FIG. 7: the drawing is another embodiment of the through-wall sealing structure for the cable with the plug;
FIG. 8: is an exploded structure diagram of another embodiment of the present invention;
FIG. 9: is another structural section view of the rubber sealing element in the utility model;
FIG. 10: is a perspective view of another structure of the rubber sealing element in the utility model;
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 5, the utility model discloses an indoor outer cable of locomotive or pipeline through-wall seal structure includes:
the base 1 is a circular pipe body, one end of the base 1 is fixedly arranged on a through hole 91 of the locomotive wallboard 9, and the outer side of the other end of the base 1 is provided with a threaded section 11; a tapered hole 12 gradually expanding from one end to the other end is formed in the middle section in the base 1;
the two rubber sealing pieces 2 are respectively half cylinders which can be folded to form a cylinder shape; the central parts of the two sealing pieces are provided with semicircular grooves 21 which can be closed to form circular holes; the two sealing elements are mutually opposite and are arranged in the base from the other end of the base 1, and the outer surfaces of the arrangement ends of the two sealing elements 2 are provided with conical surfaces 22 matched with the conical holes 12;
a locking piece 3 which is a cover body provided with internal threads, a through hole 31 is arranged on the cover body, the locking piece 3 is spirally fixed at the other end of the base 1, and the inner side surface of the cover body is pressed at the upper end of the sealing piece 2;
as shown in fig. 2 and 3, in the present structure, the diameter of the semicircular groove 21 is determined according to the outer diameter of the cable 8 or the pipeline 7, and may be the same as the diameter of the cable 8 or the pipeline 7 (or 0.5 to 1mm larger than the outer diameter of the cable 8 or the pipeline 7); the radial dimension of the through hole 31 on the cover body and the minimum aperture 13 in the base 1 is larger than or equal to the dimension of the plug 81 for cable connection or the pipe joint 71 for pipeline connection (usually, the radial dimension of the through hole 31 and the minimum aperture 13 in the base can be passed through the plug 81 or the pipe joint 71 as long as the radial dimension is not smaller than the minimum structure dimension of the plug 81 or the pipe joint 71); in the present embodiment, the radial dimension of the through hole 31 and the minimum aperture 13 in the base is Φ 42mm, and a plug or a pipe joint with the maximum outer diameter less than or equal to 42mm can pass through.
The utility model discloses an indoor outer cable of locomotive or pipeline wall seal structure's use is: as shown in fig. 2 and 3, the base 1 is welded to the through hole 91 of the locomotive wall panel 9, when a wire or a pipe is passed, the locking member 3 is firstly passed through the plug 81 or the pipe joint 71 and sleeved on the cable 8 or the pipeline 7, and then the plug 81 or the pipe joint 71 is passed through the hole 13 of the base and connected with the equipment inside the locomotive (the other end of the cable 8 is connected with the electric equipment 82 outside the locomotive, as shown in fig. 4). After the plug 81 or the pipe joint 71 is connected with the equipment, the two rubber sealing pieces 2 are oppositely arranged to be sleeved on the cable 8 or the pipeline 7 and then are placed into the hole at the other end of the base 1, then the locking piece 3 is pressed against the two sealing pieces 2 and screwed on the base 1, and the locking piece 3 is screwed tightly by applying proper torque. Because the placing end of the sealing element 2 is provided with the conical surface 22 (in the embodiment, the conical degree is 45 degrees) matched with the inner conical hole 12 of the base, the sealing element 2 is radially expanded to clamp the cable 8 or the pipeline 7 by the pressure generated when the locking element 3 is screwed, the gap between the sealing element 2 and the cable 8 or the pipeline 7 is eliminated, and the gap between two rubber sealing elements and the gap between the rubber sealing element 2 and the base 1 are also eliminated, thereby achieving good and reliable sealing effect.
The utility model overcomes the problems that the eta-shaped pipe through-wall wire passing mode in the prior art must be vertically installed, is not dustproof and is not suitable for the wire passing of the cable with the plug; the problems that the foreign produced wire passing sealing element is complex in structure, is not suitable for vertical installation, cannot be firmly and reliably fixed and is inconvenient to assemble and operate during wire passing are solved; meanwhile, the problem of wall penetration of the pipeline is also solved. From the above, the through-wall sealing structure for the indoor and outdoor cables or pipelines of the locomotive has reliable sealing and waterproof and dustproof effects; the structure can be used for the through-wall sealing of cables and pipelines and is suitable for the through-wall sealing of cables with plugs and pipelines with pipe joints.
Further, in the present embodiment, the base 1 and the locking member 3 are made of stainless steel.
The connecting thread of the locking piece 3 and the other end of the base 1 is a fine thread so as to prevent the locking piece 3 from loosening after being screwed down.
In the embodiment, the material of the sealing element 2 is ethylene propylene diene monomer rubber or oil-resistant rubber. The sealing element 2 adopts ethylene propylene diene monomer rubber when used for sealing the cable 8; when the pipeline 7 is sealed, the sealing element 2 is made of oil-resistant rubber.
The base 1 can also be welded on a locomotive roof cover plate according to the requirement of the installation position.
The structure and principle of the present embodiment are substantially the same as those of embodiment 1, except that as shown in fig. 6 and 7, one end of the base 1 passes through the through hole 91 of the locomotive wall panel 9 and is provided with an extension 14, and the outer wall of the extension 14 is provided with threads; a fastening nut 4 is connected to the thread of the extension section 14; the section of thread also adopts fine thread.
Further, as shown in fig. 6 and 7, an annular positioning portion 15 is disposed at a fixing position of the base 1 and the locomotive wall panel 9, so that the base 1 can be stably positioned in the through hole 91 of the locomotive wall panel 9; an annular groove 16 is arranged on one side surface of the annular positioning part 15, which is contacted with the wall plate 9, an O-shaped sealing ring 5 is arranged in the annular groove 16, and the O-shaped sealing ring 5 is a standard sealing element.
During installation, as shown in fig. 7, the O-ring 5 is first placed in the annular groove 16 of the base 1, and then the extension section 14 at one end of the base 1 is inserted through the through hole 91 of the locomotive wallboard 9 and connected to the thread of the extension section 14 by the fastening nut 4, so that the base 1 is firmly and reliably fixed on the locomotive wallboard 9; the subsequent assembly process of the wire or tube is the same as that of the welding installation mode.
Other structures, operation principles, and advantageous effects of this embodiment are the same as those of embodiment 1, and are not described herein again.
The present embodiment is basically the same as embodiment 1 in structure and principle, and is different in that as shown in fig. 7 to 10, radially reduced semi-circular step portions 23 are respectively formed at the upper ends of the two sealing members 2; the shaft shoulder 231 of the step part 23 is provided with an inclined angle 2311 inclined towards the placing end thereof; a circular pressing sleeve 6 is further arranged between the locking piece 3 and the sealing elements 2, the pressing sleeve 6 is sleeved on the step portions 23 of the two sealing elements 2, a chamfer 61 (shown in fig. 7) gradually expanding from inside to outside is formed at the contact end of the pressing sleeve 6 and the shaft shoulder 231, and the inclination angle of the chamfer 61 is the same as that of the inclination angle 2311 (in the embodiment, the inclination angle is 45 degrees); the aperture 62 of the clamping sleeve 6 is greater than or equal to the size of the plug 81 for cable connection or the pipe connection 71 for pipe connection.
As shown in the figure, since in the present embodiment, the pressing sleeve 6 is just sleeved on the step portions 23 of the two sealing members 2, and the shaft shoulders 231 of the pressing sleeve 6 and the sealing members 2 are provided with the matched chamfer 61 and the inclination angle 2311; as shown in fig. 7, when the locking member 3 is screwed down, the locking member 3 presses the pressing sleeve 6 downward, so that the chamfer 61 of the pressing sleeve 6 radially presses the two sealing members 2 through the inclined angle 2311 of the sealing member 2, the sealing member 2 radially expands, the cable 8 or the pipeline 7 is clamped, the gap between the sealing member 2 and the cable 8 or the pipeline 7 is eliminated, and the gap between the two rubber sealing members and the gap between the rubber sealing member 2 and the base 1 are also eliminated, so that a good and reliable sealing effect is achieved.
Other structures, operation principles, and advantageous effects of this embodiment are the same as those of embodiment 1, and are not described herein again.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The utility model provides an indoor outer cable of locomotive or pipeline wall seal structure, this structure of its characterized in that includes:
the base is a circular pipe body, one end of the base is fixedly arranged on a through hole of the locomotive wallboard, and the outer side of the other end of the base is provided with a threaded section; a conical hole gradually expanding from one end to the other end is formed in the middle section in the base;
the two rubber sealing pieces are respectively half cylinders which can be folded to form a cylinder shape; the central parts of the two sealing pieces are provided with semicircular grooves which can be closed to form circular holes; the two sealing elements are mutually opposite and are arranged in the base from the other end of the base, and the outer surfaces of the arrangement ends of the two sealing elements are provided with conical surfaces matched with the conical holes;
the locking piece is a cover body provided with internal threads, a through hole is formed in the cover body, the locking piece is spirally fixed to the other end of the base, and the inner side face of the cover body is pressed at the upper end of the sealing piece;
the diameter of the semicircular groove is the same as that of the cable or the pipeline; the radial size of the through hole on the cover body and the minimum aperture in the base is more than or equal to the size of a plug connected with a cable or a pipe joint connected with a pipeline.
2. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 1, wherein: one end of the base is welded and fixed on the through hole of the locomotive wallboard.
3. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 1, wherein: one end of the base penetrates through a through hole of the locomotive wallboard and is provided with an extension section, and the outer wall of the extension section is provided with threads; a fastening nut is connected to the extension.
4. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 3, wherein: the fixing part of the base and the locomotive wallboard is provided with an annular positioning part, one side surface of the annular positioning part, which is contacted with the wallboard, is provided with an annular groove, and an O-shaped sealing ring is arranged in the annular groove.
5. The locomotive indoor and outdoor cable or pipe through-wall sealing structure according to any one of claims 1 to 4, wherein: the upper ends of the two sealing pieces form semi-circle step parts which are radially reduced respectively; the shaft shoulder of the step part is provided with an inclined angle inclined towards the built-in end of the step part; a circular pressing sleeve is arranged between the locking piece and the sealing piece, the pressing sleeve is sleeved on the step part of the sealing piece, a chamfer gradually expanding from inside to outside is formed by the pressing sleeve and the contact end of the shaft shoulder, and the inclination angle of the chamfer is the same as that of the inclination angle; the aperture of the pressing sleeve is larger than or equal to the size of a plug connected with a cable or a pipe joint connected with a pipeline.
6. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 5, wherein: the base, the locking piece and the pressing sleeve are made of stainless steel materials.
7. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 1, wherein: and the connecting thread between the locking piece and the other end of the base is a fine thread.
8. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 1, wherein: the sealing element is made of ethylene propylene diene monomer rubber or oil-resistant rubber.
9. The locomotive indoor and outdoor cable or pipe through-wall sealing structure of claim 1, wherein: the locomotive wallboard is a locomotive top cover plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2008200091227U CN201174543Y (en) | 2008-04-02 | 2008-04-02 | Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall |
Applications Claiming Priority (1)
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CNU2008200091227U CN201174543Y (en) | 2008-04-02 | 2008-04-02 | Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall |
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CNU2008200091227U Expired - Fee Related CN201174543Y (en) | 2008-04-02 | 2008-04-02 | Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall |
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