CN218850366U - Explosion-proof cable introduction device - Google Patents
Explosion-proof cable introduction device Download PDFInfo
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- CN218850366U CN218850366U CN202222867918.9U CN202222867918U CN218850366U CN 218850366 U CN218850366 U CN 218850366U CN 202222867918 U CN202222867918 U CN 202222867918U CN 218850366 U CN218850366 U CN 218850366U
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- 238000007789 sealing Methods 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims abstract description 12
- 239000000565 sealant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 claims 3
- 230000009471 action Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides an explosion-proof cable leading-in device, which comprises a first component and a second component which are fixedly connected with explosion-proof equipment, wherein the first component and the second component are locked and fixed through a buckle component; the first assembly comprises a nut seat, a first pair of plug connectors and an inner side cable, the second assembly comprises a second pair of plug connectors and an outer side cable, and the second pair of plug connectors and the nut seat are combined to form an explosion-proof surface; the buckle assembly comprises a bulge arranged outside the nut seat, a hook and a spring, wherein the hook and the spring are arranged outside the second pair of plug connectors, the middle part of the hook is rotatably connected to the second pair of plug connectors through a rotating shaft, the hook rotates around the rotating shaft, and the spring is supported between the hook and the second pair of plug connectors. The quick replacement of the first assembly and the second assembly is realized by utilizing a buckle assembly consisting of a spring and a hook, so that the quick butt joint of cables outside the explosion-proof cavity is conveniently realized; the sealing and explosion-proof performance of the explosion-proof surface can be improved through the elasticity of the spring and the tension of the hook.
Description
Technical Field
The utility model relates to an explosion-proof equipment technical field especially relates to an explosion-proof cable introduction device.
Background
In industrial production, there are many industrial sites with harsh conditions, such as: colliery, mine, tunnel etc, the instrument equipment of adoption need possess the blast proof ability, most flameproof electrical equipment at present, its cable is inside directly introducing the equipment, if the utility model patent of grant publication No. CN210867145U discloses an explosion-proof cable introducing device, there is a packing box between cable and the adapter sleeve, through filling explosion-proof sealing clay between this packing box and the cable, adhesive bonding becomes a whole, and keep apart with outside adapter sleeve, although avoided the inside oppression nature damage of cable, however, the cable is integrative in the whole structure, pass from the middle part, when the cable that is located inside the equipment or outside damages when needing to be changed, then need carry out the change of whole piece to the cable, maintenance cost is higher. In addition, the cable is directly connected to the equipment, and during transportation or carrying of the equipment, the cable part positioned outside the equipment can only be supported or hung outside the equipment, so that the cable is easily damaged due to external stress, and the cable is inconvenient to carry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: not enough to cable introduction device among the prior art, the utility model provides an explosion-proof cable introduction device can realize the quick butt joint and the change of cable in the flame proof cavity outside when guaranteeing sealed flame proof performance.
The utility model provides a technical scheme that its technical problem will adopt is: an explosion-proof cable introduction device comprises a first assembly fixedly connected with explosion-proof equipment and a second assembly connected with the first assembly in a plugging and unplugging manner, wherein the first assembly and the second assembly are fixedly connected in a locking manner through a buckle assembly; wherein,
the first assembly comprises a nut seat, a first pair of plug connectors and an inner side cable, the nut seat is used for being connected with an equipment shell, a through hole is formed in the nut seat along the axial direction, a first butt terminal is arranged at one end of each first pair of plug connectors, and the end part of each first pair of plug connectors provided with the first butt terminals is connected to the inner part of one end of the through hole; a first wire passing hole is formed in the middle of the first pair of plug connectors, one end of the inner side cable is inserted into the first wire passing hole and electrically connected with the first butt terminal, and the other end of the inner side cable is led out of the first wire passing hole to the inside of the equipment shell and used for being connected with electronic components in the equipment;
the second assembly comprises a second pair of plug connectors and an outer cable, wherein one end of the second pair of plug connectors is provided with a second butt terminal, a second wire passing hole is formed in the second pair of plug connectors, one end of the outer cable is inserted into the second wire passing hole and is electrically connected with the second butt terminal, the second wire passing hole is filled with sealant to fix the outer cable in the second wire passing hole, and the other end of the outer cable is led out of the second wire passing hole and is connected to the outside of the explosion-proof equipment to realize transmission of signals, power supplies and the like;
the first step is arranged on the outer side of one end, provided with a second butt joint terminal, of the second pair of plug connectors, the second pair of plug connectors are inserted into the through hole of the nut seat, and the first step of the second pair of plug connectors is combined with the inner wall and the end part of the through hole of the first pair of plug connectors to form an explosion-proof surface; in the scheme, the first butting plug is a male plug, and the second butting plug is a female plug.
The buckle assemblies are at least two groups and are uniformly distributed on the outer peripheral surface of the cable leading-in device along the line, each group of buckle assemblies comprises a protrusion arranged outside the nut seat and a hook arranged outside the second pair of plug connectors, the middle part of the hook is connected to the second pair of plug connectors in a rotating mode through a rotating shaft, and the hook rotates around the rotating shaft and can be hung on the protrusion or separated from the protrusion.
Furthermore, in order to enable the hook to be hung on the protrusion and to keep stable and guarantee the flame-proof sealing performance of the flame-proof surface, the buckle assembly further comprises a spring, the spring is arranged in the expansion direction along the radial direction of the second pair of plug connectors, one end of the spring is abutted to the second pair of plug connectors, the other end of the spring is abutted to one end, far away from the protrusion, of the hook, and the spring is always in a compression state in the rotating process of the hook around the rotating shaft. When the hook is hung on the bulge, the spring generates outward elastic force, and the hook can be firmly hooked on the bulge through the lever action of the rotating shaft and the hook, so that the second assembly is prevented from falling off from the first assembly; in addition, due to the action of the spring, the part of the hook hooked on the protrusion can generate pulling force of an axis to the protrusion, so that the end face of the nut seat is tightly attached to the end face of the first step on the second pair of plug connectors, and the explosion-proof sealing performance is guaranteed.
Furthermore, a second step is further arranged on the outer wall of the second pair of plug connectors, the outer diameter of the second step is larger than that of the first step, a blind hole extending in the radial direction is formed in the outer wall of the second pair of plug connectors between the first step and the second step, one end of the spring is inserted into the first blind hole, a second blind hole is formed in the side face, facing the second pair of plug connectors, of the hook, and the other end of the spring is inserted into the second blind hole.
Furthermore, the through hole is a stepped hole and comprises a first hole part and a second hole part which are sequentially connected, the inner diameter of the first hole part is smaller than that of the second hole part, the first butt-joint plug is installed in the first hole part, and the inner wall of the second hole part is combined with the first step of the second butt-joint plug.
Furthermore, a flange is arranged at one end, away from the first butt joint terminal, of the first butt joint connector. When the first pair of plug connectors are connected in the first hole part, the surface of the flange is attached to the end face of the nut seat, and positioning and limiting are achieved.
Preferably, the explosion-proof surface is a circular seam allowance explosion-proof surface.
Furthermore, in order to improve the sealing performance of the explosion-proof surface, the explosion-proof device further comprises at least one sealing ring, and the sealing ring is arranged between the nut seat and the explosion-proof surface of the second pair of plug connectors.
The utility model has the advantages that: the utility model provides an explosion-proof cable leading-in device, which utilizes a buckle component consisting of a spring and a hook to realize the quick replacement of a first component and a second component, and is convenient for realizing the quick butt joint of cables outside an explosion-proof cavity; in addition, the sealing and explosion-proof performance of the explosion-proof surface can be improved through the elasticity of the spring and the tension of the hook.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the explosion-proof cable introduction device of the present invention.
Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.
In the figure: 1. a first pair of plug connectors 2, a nut seat 3, a second pair of plug connectors 4, sealant 5, an outer cable 6, a buckle component 61, a bulge 62 and a hook, 63, a rotating shaft, 64, a spring, 7, an explosion-proof surface, 8, a first butt joint terminal, 9, an inner side cable, 10, an equipment shell, 11, a sealing ring, 12 and a second butt joint terminal.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1, the explosion-proof cable introduction device of the present invention comprises a first component fixedly connected to an explosion-proof device, and a second component connected to the first component in a plug-in manner, wherein the first component and the second component are locked and fixed by a buckle component 6; the first assembly comprises a nut seat 2, a first pair of plug connectors 1 and an inner side cable 9, the nut seat 2 is used for being connected with an equipment shell 10, a through hole is formed in the nut seat 2 along the axial direction, the through hole is a stepped hole and comprises a first hole portion and a second hole portion which are connected in sequence, and the inner diameter of the first hole portion is smaller than that of the second hole portion. One end of the first pair of plug connectors 1 is provided with a first butt terminal 8, and the end part of the first pair of plug connectors 1 provided with the first butt terminal 8 is connected in the first hole part of the through hole; the end of the first pair of plug connectors 1, which is far away from the first butt-joint terminal 8, is provided with a flange, and when the first pair of plug connectors 1 are connected in the first hole part, the surface of the flange is attached to the end face of the nut seat 2, so that positioning and limiting are realized. A first wire passing hole is formed in the middle of the first pair of plug connectors 1, one end of the inner side cable 9 is inserted into the first wire passing hole and electrically connected with the first butt terminal 8, and the other end of the inner side cable 9 is led out of the first wire passing hole to the inside of the equipment shell 10 and is used for being connected with electronic components in the equipment. The second assembly comprises a second pair of plug connectors 3 and an outer side cable 5, a second butt joint terminal 12 is arranged at one end of the second pair of plug connectors 3, a second wire passing hole is formed in the second pair of plug connectors 3, one end of the outer side cable 5 is inserted into the second wire passing hole from the second wire passing hole and is electrically connected with the second butt joint terminal 12, the outer side cable 5 is fixed in the second wire passing hole through a sealant 4 filled in the second wire passing hole, and the second wire passing hole is led out from the other end of the outer side cable 5 and is connected to the outside of the explosion-proof equipment to realize transmission of signals, power supplies and the like. A first step and a second step are sequentially arranged on the outer side of the second pair of plug connectors 3, the outer diameter of the second step is larger than that of the first step, the first step is close to one side of the second butt-joint terminal 12, the second pair of plug connectors 3 are inserted into the second hole part of the nut seat 2, the first step of the second pair of plug connectors 3, the inner wall of the second hole part and the end part of the first pair of plug connectors 1 are combined to form an explosion-proof surface 7, and preferably, the explosion-proof surface 7 is a circular seam allowance explosion-proof surface; at least one sealing ring 11 is arranged between the nut seat 2 and the explosion-proof surface 7 of the second pair of plug connectors 3, so that the sealing and explosion-proof performance of the explosion-proof surface 7 is improved. In this embodiment, the first mating plug is a male plug, and the second mating plug is a female plug, so that the first component and the second component can be connected by plugging.
As shown in fig. 2, at least two sets of the fastening components 6 are uniformly distributed along the outer circumferential surface of the cable introduction device, each set of the fastening components 6 includes a protrusion 61 arranged outside the nut seat 2 and a hook 62 arranged outside the second pair of the plug connectors 3, the middle of the hook 62 is rotatably connected to the second pair of the plug connectors 3 through a rotating shaft 63, and the hook 62 rotates around the rotating shaft 63 and can be hung on the protrusion 61 or separated from the protrusion 61. In order to keep the hook 62 stable when hanging on the protrusion 61, the buckle assembly 6 further includes that the spring 64 is arranged along the radial direction of the second pair of plugs 3 in the expansion and contraction direction, one end of the spring 64 abuts against the second pair of plugs 3, the other end abuts against one end of the hook 62 far away from the protrusion 61, and the spring 64 is always in a compressed state in the rotation process of the hook 62 around the rotating shaft 63. When the hook 62 is hung on the protrusion 61, the spring 64 generates an outward elastic force, and the hook 62 can be firmly hooked on the protrusion 61 through the lever action of the rotating shaft 63 and the hook 62, so that the second component is prevented from falling off from the first component. In order to ensure the connection stability of the spring 64, blind holes extending in the radial direction are formed in the outer wall of the second pair of plug connectors 3 between the first step and the second step, one end of the spring 64 is inserted into the first blind hole, a second blind hole is formed in the side surface of the hook 62 facing the second pair of plug connectors 3, and the other end of the spring 64 is inserted into the second blind hole.
When the explosion-proof device is used, the second pair of plug connectors 3 of the second assembly are inserted into the second hole part of the nut seat 2, and the end surface of the first step is attached to the end surface of the nut seat 2 to form a circular seam allowance explosion-proof surface 7; then, hook 62 is hooked on protrusion 61, hook 62 hooks protrusion 61 and produces an axial pulling force, make the terminal surface of first step and the terminal surface laminating of nut seat 2 inseparabler, simultaneously, under the effect of spring 64, hook 62 still can produce a radial packing force to the lateral wall of nut seat 2 to make the second hole portion inner wall closely laminate with the outer wall of the second pair of bayonet joint 3, realize sealed flame proof. The hook 62 and the protrusion 61 can be detachably connected to fix and lock the first component and the second component, and can also be conveniently and quickly detached from the first component and the second component, so that the hook is convenient to maintain and transport in the later period and is more convenient to use.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides an explosion-proof cable introduction device which characterized in that: the explosion-proof device comprises a first component fixedly connected with explosion-proof equipment and a second component connected with the first component in a plugging and pulling manner, wherein the first component and the second component are locked and fixed through a buckle component; wherein,
the first assembly comprises a nut seat, a first pair of plug connectors and an inner side cable, a through hole is formed in the nut seat along the axial direction, a first butt terminal is arranged at one end of each first pair of plug connectors, and the end part of each first pair of plug connectors provided with the first butt terminals is connected to the inner part of one end of the through hole; a first wire passing hole is formed in the middle of the first plug connector, one end of the inner side cable is inserted into the first wire passing hole and is electrically connected with the first butt terminal, and the other end of the inner side cable is led out of the first wire passing hole to the inside of the equipment shell;
the second assembly comprises a second pair of plug connectors and an outer cable, wherein one end of the second pair of plug connectors is provided with a second butt terminal, a second wire passing hole is formed in the second pair of plug connectors, one end of the outer cable is inserted into the second wire passing hole and is electrically connected with the second butt terminal, and the second wire passing hole is filled with sealant to fix the outer cable in the second wire passing hole;
the first step is arranged on the outer side of one end, provided with a second butt joint terminal, of the second pair of plug connectors, the second pair of plug connectors are inserted into the through hole of the nut seat, and the first step of the second pair of plug connectors is combined with the inner wall and the end part of the through hole of the first pair of plug connectors to form an explosion-proof surface;
the buckle components are at least two groups, the peripheral surfaces of the cable leading-in devices along the cable leading-in devices are uniformly distributed, each group of buckle components comprises a protrusion arranged outside the nut seat and a hook arranged outside the second pair of plug connectors, the middle part of the hook is connected to the second pair of plug connectors through a rotating shaft in a rotating mode, and the hook rotates around the rotating shaft and can be hung on the protrusion or separated from the protrusion.
2. An explosion proof cable entry device as defined in claim 1, wherein: the buckle assembly further comprises a spring, the spring is arranged along the second pair of plug connectors in the radial direction, one end of the spring abuts against the second pair of plug connectors, the other end of the spring abuts against one end, far away from the protrusion, of the hook, and the spring is always in a compressed state in the rotating process of the hook around the rotating shaft.
3. An explosion proof cable entry device as defined in claim 2, wherein: the outer wall of the second pair of plug connectors is further provided with a second step, the outer diameter of the second step is larger than that of the first step, a blind hole extending in the radial direction is formed in the outer wall of the second pair of plug connectors between the first step and the second step, one end of the spring is inserted into the first blind hole, the side face, facing the second pair of plug connectors, of the hook is provided with a second blind hole, and the end of the other end of the spring is inserted into the second blind hole.
4. An explosion-proof cable introduction apparatus as defined in claim 1, wherein: the through hole is a step hole and comprises a first hole part and a second hole part which are sequentially connected, the inner diameter of the first hole part is smaller than that of the second hole part, the first butt-joint plug is installed in the first hole part, and the inner wall of the second hole part is combined with the first step of the second butt-joint plug.
5. An explosion proof cable entry device as defined in claim 1, wherein: and flanges are arranged at one ends of the first pair of plug connectors, which are far away from the first butt joint terminal.
6. An explosion-proof cable introduction apparatus as defined in claim 1, wherein: the explosion-proof surface is a circular seam allowance explosion-proof surface.
7. An explosion-proof cable introduction apparatus as defined in claim 1, wherein: the explosion-proof device further comprises at least one sealing ring, and the sealing ring is arranged between the nut seat and the explosion-proof surface of the second pair of connecting plugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222867918.9U CN218850366U (en) | 2022-10-28 | 2022-10-28 | Explosion-proof cable introduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222867918.9U CN218850366U (en) | 2022-10-28 | 2022-10-28 | Explosion-proof cable introduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218850366U true CN218850366U (en) | 2023-04-11 |
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ID=87299979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222867918.9U Active CN218850366U (en) | 2022-10-28 | 2022-10-28 | Explosion-proof cable introduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218850366U (en) |
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2022
- 2022-10-28 CN CN202222867918.9U patent/CN218850366U/en active Active
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