CN213185468U - Sealing structure of intelligent fireproof and explosion-proof device for cable intermediate joint - Google Patents
Sealing structure of intelligent fireproof and explosion-proof device for cable intermediate joint Download PDFInfo
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- CN213185468U CN213185468U CN202022145722.XU CN202022145722U CN213185468U CN 213185468 U CN213185468 U CN 213185468U CN 202022145722 U CN202022145722 U CN 202022145722U CN 213185468 U CN213185468 U CN 213185468U
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Abstract
The utility model discloses a cable intermediate head intelligence fire prevention explosion-proof equipment's seal structure, fire prevention explosion-proof equipment is including setting up the explosion-proof box body in cable intermediate head department, seal structure is including setting up at explosion-proof box body both ends and the seal receptacle subassembly that the structure is the same, the seal receptacle subassembly is including cup jointing the seal housing in the cable periphery be provided with the flexible sealing member who cup joints on the cable between seal housing and the cable, flexible sealing member is extruded and is warp along its radial expansion by axial external force when the assembly to space between filling cable and the seal housing inner wall is held cable and sealed shutoff tightly. The utility model discloses an adopt mechanical type seal structure at explosion-proof box body both ends, utilize the characteristic that flexible sealing member pressurized warp, make and form effective and reliable sealed shutoff between seal housing and the cable to make explosion-proof box body have good waterproof, dampproofing, corrosion resisting property, sealed grade can reach IP 68.
Description
Technical Field
The utility model belongs to the technical field of the cable safety protection, in particular to cable intermediate head intelligence fire prevention explosion-proof equipment's seal structure.
Background
The cable intermediate head intelligence fire prevention explosion-proof equipment is used for the protection and the control of power cable intermediate head, because the defect of intermediate head quality and installation, or because wet, transship and the effect of other external forces, lead to cable intermediate head accident or even explosion often, the produced high temperature of explosion and energy of instantaneous release are enough to blast or burn out in the cable pit rather than other cables that are parallel to, can lift the well lid even, destroy the channel and cause the injury, damage to pedestrian or other facilities, so need set up explosion-proof box for cable intermediate head department during engineering installation, play the guard action for cable run's safety, reach waterproof, dampproofing, fire prevention, blast proof purpose, monitor and prevent fires the operational environment state to cable joint simultaneously and deal with.
The existing cable intermediate joint protection box is mainly plugged by adopting a plane rubber sealing gasket, a sealant and fireproof mud due to the sealing design, and the defects of cracking, air holes and the like can occur after a long time, so that the sealing is invalid, the cable joint is affected with damp and even invaded water, the safe operation of the cable is seriously affected, and even serious safety accidents occur.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: to the problem that above-mentioned exists, provide one kind and can improve the sealed effect of explosion-proof box, make it have good waterproof, dampproofing, cable intermediate head intelligence fire prevention explosion-proof equipment's of corrosion protection seal structure.
The technical scheme of the utility model is realized like this: the utility model provides a cable intermediate head intelligence fire and explosion protection device's seal structure, fire and explosion protection device is including setting up the explosion-proof box body in cable intermediate head department, its characterized in that: the sealing structure comprises sealing seat assemblies which are arranged at two ends of the explosion-proof box body and have the same structure, each sealing seat assembly comprises a sealing shell which is sleeved on the periphery of a cable, a flexible sealing element which is sleeved on the cable is arranged between the sealing shell and the cable, and the flexible sealing element is extruded by axial external force and radially expands and deforms along the flexible sealing element when being assembled so as to fill the space between the cable and the inner wall of the sealing shell, tightly hold the cable and seal and block the cable.
Cable intermediate head intelligence fire and explosion protection equipment's seal structure, it is in annular sealing washer has been cup jointed to flexible sealing member periphery the internal face of seal housing is provided with and corresponds the complex annular with annular sealing washer, annular sealing washer inlays the dress in seal housing's annular.
Cable intermediate head intelligence fire prevention explosion-proof equipment's seal structure, it is in the outer disc edge of ring type seal is provided with along its radial bellied semi-circular boss symmetrically.
Cable intermediate head intelligence fire prevention explosion-proof equipment's seal structure, it is in flexible sealing member both ends are provided with interior clamp plate and outer clamp plate respectively, the interior clamp plate and the outer clamp plate at flexible sealing member both ends pass through bolted connection, interior clamp plate and seal shell fixed connection make the outer clamp plate form axial extrusion force to flexible sealing member through screwing up the bolt to make flexible sealing member radially inside and outside expand and warp.
Cable intermediate head intelligence fire prevention explosion-proof equipment's seal structure, it is in install the extinguishing device who hugs closely the box body inner wall in the explosion-proof box body, extinguishing device passes through bolted connection through sealing gasket and fixed cover plate, sealing gasket and fixed cover plate are located explosion-proof box body outer wall.
Cable intermediate head intelligence fire and explosion protection equipment's seal structure, it explosion-proof box body and seal housing form by upper and lower two parts concatenation the joint between upper and lower two parts is provided with the plane sealing pad.
Cable intermediate head intelligence fire prevention explosion-proof equipment's seal structure, it is in the sealed pad of plane is close to the edge and is provided with linear semi-circular boss.
The utility model discloses an adopt mechanical type seal structure at explosion-proof box body both ends, utilize the characteristic that flexible sealing member pressurized deformation, make and form effective and reliable sealed shutoff between seal housing and the cable to make explosion-proof box body have good waterproof, dampproofing, corrosion resisting property, sealed grade can reach I P68.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a schematic view of the internal structure of the explosion-proof box of the present invention.
FIG. 4 is an enlarged view of a portion of the seal carrier assembly of FIG. 3.
Fig. 5 is a schematic structural diagram of the middle plane sealing gasket of the present invention.
Fig. 6 is an enlarged view of a portion a in fig. 5.
The labels in the figure are: the anti-explosion cable comprises a cable 1, an anti-explosion box body 2, a seal seat assembly 3, a seal shell 4, a flexible seal part 5, an annular seal ring 6, a ring groove 7, a semicircular boss 8, an inner pressure plate 9, an outer pressure plate 10, a fixed cover plate 11, a planar seal pad 12 and a linear semicircular boss 13.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is made in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 6, the sealing structure of the intelligent fireproof and explosion-proof device for the cable intermediate joint comprises an explosion-proof box body 2 arranged at the intermediate joint of a cable 1, the explosion-proof box body is made of stainless steel materials, the explosion-proof box body 2 is formed by splicing an upper box body and a lower box body, a plane sealing gasket 12 is arranged at the joint part between the upper box body and the lower box body, a linear semicircular boss 13 is arranged at the edge of the plane sealing gasket 12, so that a line contact sealing structure is realized, the design of the structure can enable the plane sealing gasket to be attached to the joint part of the upper box body and the lower box body more tightly and reliably, the sealing effect is better, and the waterproof performance; the sealing structure comprises sealing seat assemblies 3 which are arranged at two ends of the explosion-proof box body 2 and have the same structure, and the sealing seat assemblies are adopted at outlets at two ends of the explosion-proof box body to carry out mechanical sealing, so that the sealing performance of the explosion-proof box can be greatly improved.
Specifically, the seal seat assembly 3 comprises a seal housing 4 sleeved on the periphery of the cable 1, the seal housing 4 is formed by splicing an upper housing and a lower housing, a plane sealing gasket 12 is arranged at the joint part between the upper shell and the lower shell, a linear semicircular lug boss 13 is arranged at the edge of the plane sealing gasket 12 to realize a line contact sealing structure, the design of the structure can ensure that the joint of the plane sealing gasket and the joint of the upper shell and the lower shell is more compact and reliable, the sealing effect is better, the waterproof performance is improved, a flexible sealing element 5 sleeved on the cable 1 is arranged between the sealing shell 4 and the cable 1, the flexible sealing element is made of rubber, the flexible sealing element 5 is extruded by axial external force and expands and deforms along the radial direction when being assembled, so as to fill the space between the cable 1 and the inner wall of the sealed shell 4, hold the cable 1 tightly and seal and block.
Wherein, in order to further improve the leakproofness of box body tip 5 periphery has cup jointed ring seal 6 the internal face of seal housing 4 is provided with and corresponds complex annular 7 with ring seal 6, ring seal 6 inlays the dress in ring seal 7 of seal housing 4 the outer disc edge of ring seal 6 is provided with along its radial bellied semi-circular boss 8 symmetrically, realizes line contact seal structure.
In addition, install the extinguishing device who hugs closely the box body inner wall in the explosion-proof box body 2, extinguishing device passes through bolted connection through sealing gasket and fixed cover plate 11, sealing gasket and fixed cover plate 11 are located explosion-proof box body 2 outer walls, explosion-proof box body adopts straight cylindric, makes things convenient for extinguishing device's installation and maintenance.
In this embodiment, flexible sealing member 5 both ends are provided with interior clamp plate 9 and outer clamp plate 10 respectively, the interior clamp plate 9 and the outer clamp plate 10 at flexible sealing member 5 both ends pass through bolted connection, interior clamp plate 9 and seal shell 4 fixed connection make outer clamp plate 10 form axial extrusion force to flexible sealing member 5 through screwing up the bolt to make flexible sealing member 5 radially expand outward and warp, through the difference of bolt-up power, can adapt to certain range's cable diameter.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a cable intermediate head intelligence fire and explosion protection device's seal structure, fire and explosion protection device is including setting up explosion-proof box body (2) in cable (1) intermediate head department, its characterized in that: the sealing structure comprises sealing seat assemblies (3) which are arranged at two ends of an explosion-proof box body (2) and have the same structure, each sealing seat assembly (3) comprises a sealing shell (4) sleeved on the periphery of a cable (1), a flexible sealing element (5) sleeved on the cable (1) is arranged between each sealing shell (4) and the corresponding cable (1), and each flexible sealing element (5) is extruded by axial external force and radially expands and deforms along the flexible sealing element when being assembled so as to fill the space between the inner walls of the cables (1) and the sealing shells (4) and hold the cables (1) tightly and seal and block the cables.
2. A sealing structure of intelligent fire-proof and explosion-proof device of cable intermediate joint according to claim 1, characterized in that: flexible sealing member (5) periphery has cup jointed ring packing (6) the internal face of sealed casing (4) is provided with and corresponds complex annular (7) with ring packing (6), ring packing (6) inlay and adorn in annular (7) of sealed casing (4).
3. A sealing structure of intelligent fire-proof and explosion-proof device of cable intermediate joint according to claim 2, characterized in that: semicircular bosses (8) protruding along the radial direction of the annular sealing ring are symmetrically arranged at the edge of the outer circular surface of the annular sealing ring (6).
4. A sealing structure of intelligent fire-proof and explosion-proof device of cable intermediate joint according to claim 1, characterized in that: inner pressing plates (9) and outer pressing plates (10) are respectively arranged at two ends of the flexible sealing element (5), the inner pressing plates (9) and the outer pressing plates (10) at two ends of the flexible sealing element (5) are connected through bolts, the inner pressing plates (9) are fixedly connected with the sealing shell (4), the outer pressing plates (10) form axial extrusion force on the flexible sealing element (5) through tightening bolts, and therefore the flexible sealing element (5) is radially expanded and deformed inwards and outwards.
5. A sealing structure of intelligent fire-proof and explosion-proof device of cable intermediate joint according to claim 1, characterized in that: install the extinguishing device who hugs closely the box body inner wall in the explosion-proof box body (2), extinguishing device passes through bolted connection through sealing gasket and fixed cover plate (11), sealing gasket and fixed cover plate (11) are located explosion-proof box body (2) outer wall.
6. A sealing structure of intelligent fire and explosion protection device for cable intermediate joint according to any one of claims 1 to 5, characterized in that: the explosion-proof box body (2) and the sealing shell (4) are formed by splicing an upper part and a lower part, and a plane sealing gasket (12) is arranged at the joint part between the upper part and the lower part.
7. A sealing structure of intelligent fire and explosion protection device for cable intermediate joint according to claim 6, characterized in that: and a linear semicircular boss (13) is arranged at the edge, close to the plane sealing gasket (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022145722.XU CN213185468U (en) | 2020-09-25 | 2020-09-25 | Sealing structure of intelligent fireproof and explosion-proof device for cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022145722.XU CN213185468U (en) | 2020-09-25 | 2020-09-25 | Sealing structure of intelligent fireproof and explosion-proof device for cable intermediate joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213185468U true CN213185468U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022145722.XU Active CN213185468U (en) | 2020-09-25 | 2020-09-25 | Sealing structure of intelligent fireproof and explosion-proof device for cable intermediate joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213185468U (en) |
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2020
- 2020-09-25 CN CN202022145722.XU patent/CN213185468U/en active Active
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