CN214044375U - Multi-cable penetrating and separating sealing structure - Google Patents
Multi-cable penetrating and separating sealing structure Download PDFInfo
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- CN214044375U CN214044375U CN202022779818.1U CN202022779818U CN214044375U CN 214044375 U CN214044375 U CN 214044375U CN 202022779818 U CN202022779818 U CN 202022779818U CN 214044375 U CN214044375 U CN 214044375U
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Abstract
The utility model provides a seal structure is worn to separate by multiconductor cable, include: sealing the housing; the pressing plate is arranged in the sealing shell and can slide; the sealing gasket is arranged in the sealing shell and can slide, the sealing gasket is provided with a sealing surface for sealing and attaching, and at least one cable hole for penetrating a cable is formed in the sealing gasket; the locking piece penetrates through the pressure plate and the sealing gasket and is used for mounting the whole structure; when the locking part is locked, the pressure plate is driven to push the sealing gasket to move and compress, and the sealing surface and the cable hole are extruded to form sealing; the condition that current block terminal threading position adopts fire prevention mud to seal, complex operation and seal structure reliability is lower has been improved.
Description
Technical Field
The utility model relates to a cable is worn to separate shutoff technical field, concretely relates to seal structure is worn to separate by many cables.
Background
Along with the high-speed railway, subway development day by day, all relate to the block terminal installation in the tunnel of seting up along the line and use, and the block terminal easily receives powerful air current influence in comparatively inclosed tunnel environment, and the inside air humidity of tunnel causes the inside electronic components of box to produce the condition of short circuit easily, make whole block terminal produce the trouble, and inside electronic components uses the cable that passes the distribution box body occasionally and connects, consequently need carry out waterproof sealing at the threading position, inside in order to avoid the humid air in the tunnel to get into the box.
The existing distribution box is mainly connected through a PG joint at a threading position and is sealed through fireproof mud at the connecting port position, the fireproof mud is easy to age and crack after being used for a long time, the cable threading is low in sealing reliability, the construction process is complicated, the fireproof mud needs to be heated and then smeared, and therefore the fireproof mud has more defects when being applied in a sealing mode.
SUMMERY OF THE UTILITY MODEL
Not enough to exist among the prior art, the utility model provides a seal structure is worn to separate by multi-cable has solved current block terminal threading position and has adopted the fire prevention mud sealed, complex operation and the lower problem of seal structure reliability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-cable crossing sealing structure, comprising:
sealing the housing;
the pressing plate is arranged in the sealing shell and can slide;
the sealing gasket is arranged in the sealing shell and can slide, the sealing gasket is provided with a sealing surface for sealing and attaching, and at least one cable hole for penetrating a cable is formed in the sealing gasket;
and
a locking member passing through the pressing plate and the sealing gasket and mounting the whole structure;
when the locking piece is locked, the pressure plate is driven to push the sealing gasket to move and compress, and the sealing surface and the cable hole are extruded to form sealing.
Preferably, the sealing surface of the sealing gasket is also provided with two positioning parts arranged at intervals;
a through hole penetrating through the positioning part is formed in the sealing pad and is used for penetrating through the locking part.
Preferably, a plurality of limiting notches are uniformly distributed and arranged along the circumferential direction on the sealing gasket, and the opening directions of the limiting notches deviate from the sealing surface.
Preferably, the pressing plate comprises a plate body, and an avoiding hole used for exposing the cable hole and a mounting hole coaxial with the through hole are formed in the plate body.
Preferably, the locking member comprises a screw passing through the mounting hole and the through hole and a locking nut sleeved on the screw.
Preferably, the sealing shell comprises a pipe sleeve part, one end of the pipe sleeve part is fixedly connected with a first annular plate used for limiting the pressure plate, and the other end of the pipe sleeve part is fixedly connected with a second annular plate used for limiting the sealing gasket;
the sealing face may extend beyond the second ring plate.
Preferably, the pipe sleeve part is provided with a plurality of limiting parts which protrude inwards and are uniformly distributed along the circumferential direction.
Preferably, the sealing shell is of an integrally formed structure.
Preferably, the sealing gasket is of an integrally formed structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
after the whole structure is installed through the locking part, after the locking part is locked, the pressing plate is pushed to slide, and the pressing plate pushes and compresses the sealing gasket, so that a sealing surface is contacted and compressed with the surface of the box body to form plane sealing, and meanwhile, the sealing gasket is extruded, so that the cable penetrating through the cable hole is reliably compressed and coated to form axial sealing; and also sealing the locking piece; therefore, the plane sealing and the axial sealing of the threading position are realized through the whole structure, and the opening and the threaded cable are reliably sealed; by improving the sealing structure, the sealing effect under the requirement of IP67 can be realized; the current situation that complicated operation and poor leakproofness reliability are caused by adopting the fire clay to seal in the prior art is improved.
Drawings
Fig. 1 is a schematic diagram of an explosive structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the gasket construction;
FIG. 4 is a schematic view of a platen;
FIG. 5 is a schematic structural view of a sealed housing;
in the figure, the sealing shell 1, the pipe sleeve part 11, the first annular plate 12, the second annular plate 13, the limiting part 14, the pressure plate 2, the plate body 21, the avoidance hole 22, the mounting hole 23, the sealing gasket 3, the sealing surface 31, the cable hole 32, the positioning part 33, the through hole 34, the limiting notch 35, the locking part 4, the screw 41 and the locking nut 42 are arranged.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a multi-cable penetrating sealing structure, which includes a sealing housing 1 and a pressing plate 2 slidably mounted in the sealing housing 1, and meanwhile, a sealing gasket 3 slidably mounted in the sealing housing 1, and the sealing gasket 3 has a sealing surface 31 for sealing and fitting, when installed, the sealing surface 31 contacts with a mounting plate on a distribution box to form a plane sealing state, and at least one cable hole 32 for passing a cable is provided on the sealing gasket 3, if the number of the cable holes 32 is multiple, the arrangement is performed in a rectangular arrangement manner; the locking piece 4 penetrates through the pressure plate 2 and the sealing gasket 3 and is used for installing the whole structure, and in the gradual locking process of the locking piece 4, the pressure plate 2 is driven to push the sealing gasket 3 to move and compress, so that the sealing surface 31 and the cable hole 32 are extruded to form a seal; the specific sealing state is that the sealing gasket 3 is tightly attached to a mounting plate of the distribution box to form plane sealing after moving and being pressed, and meanwhile, the sealing gasket 3 is limited by the sealing shell 1 when being compressed, so that the cable hole 32 is contracted and the passing cable is wrapped and compressed, and axial sealing of the cable is formed; the waterproof plugging sealing of the cable passing through is realized by combining the plane sealing with the axial sealing, and the sealing of the modular structure on the mounting plate of the distribution box is realized, so that the sealing of the modular structure is realized, and the reliable sealing of the incoming and outgoing lines of the whole distribution box is realized; the condition that the fireproof mud in the prior art is easy to age and crack in sealing is well improved, and the overall sealing reliability is improved.
As shown in fig. 3, two positioning portions 33 are further disposed on the sealing surface 31 of the gasket 3 at intervals, and a through hole 34 penetrating through the positioning portions 33 is formed on the gasket 3, and the through hole 34 is used for passing through the locking member 4; when the whole sealing structure is preliminarily mounted, the positioning part 33 extends into the mounting plate of the distribution box for preliminary positioning; then, the locking part 4 penetrates through the through hole 34 to be locked, and when the locking part is locked, the locking part 4 is sealed by forming a plane seal on a mounting plate of the distribution box and combining an axial seal, so that good sealing performance can be kept after the locking part 4 is connected.
In order to facilitate the positioning function of the sealing gasket 3 in the sliding process in the sealing shell 1, as shown in fig. 3, a plurality of limiting notches 35 are uniformly distributed and arranged on the sealing gasket 3 along the circumferential direction, the opening direction of the limiting notches 35 deviates from the sealing surface 31, and the depth of the limiting notches 35 is smaller than the thickness of the whole sealing gasket 3, so that the requirement of ensuring the joint sealing between the sealing gasket and the sealing shell 1 after deformation on the circumferential surface close to the sealing surface 31 can be met, and the possibility of generating a leakage gap is avoided.
And the whole structure of the sealing gasket 3 is an integrated structure, so that the comprehensive elastic action and the recovery acting force of the whole structure are ensured conveniently.
Meanwhile, when sealing is carried out, the movement of the pressure plate 2 is mainly regulated by the locking piece 4, so that the pressure plate 2 pushes the sealing gasket 3 to move and compress, and the surfaces of the pressure plate 2, which are attached to the sealing gasket 3, have the same area, so as to ensure the uniformity during compression; as shown in fig. 4, the pressing plate 2 includes a plate body 21, and the plate body 21 is provided with an avoidance hole 22 for exposing the cable hole 32, and a mounting hole 23 coaxial with the through hole 34; the cable hole 32 on the sealing gasket 3 is exposed through the avoiding hole 22 so as to facilitate cable threading, and the locking member 4 can pass through the mounting hole 23 and the through hole 34 and then be locked and set in a sealing state.
Wherein, retaining member 4 is including passing mounting hole 23, the screw 41 of through-hole 34 and the lock nut 42 of cover on locating screw 41, and lock nut 42 adopts locknut, and when the installation, lock nut 42 is arranged in the distribution box, only need when locking carry out rotatory locking to screw 41 can to can guarantee that locking state can not produce the possibility of unclamping when receiving external influence.
The pressure plate 2 and the sealing gasket 3 are coated inside through the sealing shell 1 to form an independent module, and independent assembly is not needed in use, as shown in fig. 5, the sealing shell 1 comprises a pipe sleeve part 11, a first annular plate 12 for limiting the pressure plate 2 is fixedly connected to one end of the pipe sleeve part 11, a second annular plate 13 for limiting the sealing gasket 3 is fixedly connected to the other end of the pipe sleeve part 11, and a sealing surface 31 of the sealing gasket 3 can extend out of the second annular plate 13, so that the sealing surface 31 of the sealing gasket 3 can be reliably contacted with a mounting plate of a distribution box; the whole sealing shell 1 is of an integrally formed structure, and is processed by a sheet metal process, so that the pressing plate 2 or the sealing gasket 3 can be prevented from being separated from the sealing shell 1 after the whole sealing shell is formed.
Meanwhile, in order to ensure that the pressing plate 2 can meet the extrusion acting force on the sealing gasket 3 when the moving distance is fixed and avoid the occurrence of over-extrusion, as shown in fig. 5, a plurality of limiting parts 14 which protrude inwards and are uniformly distributed along the circumferential direction are arranged on the pipe sleeve part 11, and the spacing distance between the limiting parts 14 and the first annular plate 12 is the limit moving distance of the pressing plate 2; the stopper portion 14 is aligned with the notch of the gasket 3, and can guide the movement of the gasket 3 and restrict the gasket 3 from rotating in the circumferential direction.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A multi-cable crossing sealing structure, comprising:
a hermetic shell (1);
the pressing plate (2) is arranged in the sealed shell (1) and can slide;
the sealing gasket (3) is arranged in the sealing shell (1) and can slide, the sealing gasket (3) is provided with a sealing surface (31) for sealing and attaching, and at least one cable hole (32) for allowing a cable to pass through is formed in the sealing gasket (3); and
a locking member (4) which penetrates through the pressure plate (2) and the sealing gasket (3) and is used for installing the whole structure;
when the locking piece (4) is locked, the pressure plate (2) is driven to push the sealing gasket (3) to move and compress, and the sealing surface (31) and the cable hole (32) are extruded to form a seal.
2. The multi-cable crossing sealing structure according to claim 1, wherein the sealing surface (31) of the sealing gasket (3) is further provided with two positioning parts (33) arranged at intervals;
a through hole (34) penetrating through the positioning part (33) is formed in the sealing gasket (3), and the through hole (34) is used for penetrating through the locking piece (4).
3. The multi-cable penetrating and separating sealing structure according to claim 2, wherein a plurality of limiting notches (35) are formed in the sealing gasket (3) and are evenly distributed and arranged along the circumferential direction, and the opening directions of the limiting notches (35) are deviated from the sealing surface (31).
4. The multi-cable penetrating and separating sealing structure according to claim 2 or 3, wherein the pressing plate (2) comprises a plate body (21), an avoiding hole (22) for exposing the cable hole (32) and a mounting hole (23) coaxial with the through hole (34) are formed in the plate body (21).
5. A multi-cable passing through sealing structure according to claim 4, characterized in that the locking member (4) comprises a screw (41) passing through the mounting hole (23), the through hole (34) and a locking nut (42) sleeved on the screw (41).
6. The multi-cable crossing sealing structure according to claim 1, wherein the sealing shell (1) comprises a pipe sleeve portion (11), one end of the pipe sleeve portion (11) is fixedly connected with a first annular plate (12) used for limiting the pressure plate (2), and the other end of the pipe sleeve portion (11) is fixedly connected with a second annular plate (13) used for limiting the sealing gasket (3);
the sealing surface (31) may extend beyond the second ring plate (13).
7. A multi-cable crossing sealing structure according to claim 6, wherein a plurality of limiting parts (14) which are protruded inwards and are uniformly distributed along the circumferential direction are arranged on the pipe sleeve part (11).
8. A multi-cable pass-through seal according to claim 1, characterised in that the seal housing (1) is of an integrally formed construction.
9. A multi-cable crossing sealing arrangement according to claim 1, wherein the gasket (3) is of an integrally formed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022779818.1U CN214044375U (en) | 2020-11-26 | 2020-11-26 | Multi-cable penetrating and separating sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022779818.1U CN214044375U (en) | 2020-11-26 | 2020-11-26 | Multi-cable penetrating and separating sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214044375U true CN214044375U (en) | 2021-08-24 |
Family
ID=77362857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022779818.1U Active CN214044375U (en) | 2020-11-26 | 2020-11-26 | Multi-cable penetrating and separating sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214044375U (en) |
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2020
- 2020-11-26 CN CN202022779818.1U patent/CN214044375U/en active Active
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