CN220324733U - Fire-resistant cable intermediate joint device - Google Patents
Fire-resistant cable intermediate joint device Download PDFInfo
- Publication number
- CN220324733U CN220324733U CN202322037384.1U CN202322037384U CN220324733U CN 220324733 U CN220324733 U CN 220324733U CN 202322037384 U CN202322037384 U CN 202322037384U CN 220324733 U CN220324733 U CN 220324733U
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- Prior art keywords
- joint
- fire
- joint main
- layer
- sleeve
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 53
- 239000000919 ceramic Substances 0.000 claims abstract description 50
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 34
- 239000010949 copper Substances 0.000 claims description 28
- 229910052802 copper Inorganic materials 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims description 26
- 239000010935 stainless steel Substances 0.000 claims description 26
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 15
- 239000004945 silicone rubber Substances 0.000 claims description 15
- 238000005056 compaction Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 14
- 238000007906 compression Methods 0.000 abstract description 14
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 17
- 241000227287 Elliottia pyroliflora Species 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Cable Accessories (AREA)
Abstract
The utility model relates to the field of cable operation and discloses a fire-resistant cable intermediate joint device which comprises a joint main sleeve mechanism and an internal thread joint locking mechanism, wherein the internal thread joint locking mechanism is respectively connected with two ends of the joint main sleeve mechanism in a threaded manner, the joint main sleeve mechanism comprises a joint main sleeve, an external thread head, a compression groove, a ceramic silicon rubber compression block and a conductive sleeve component, the two ends of the joint main sleeve are respectively provided with the external thread head integrated with the compression groove, the periphery of the external thread head is equidistantly separated from the compression groove, the ceramic silicon rubber compression block is inserted into the compression groove, and the conductive sleeve component is inserted into the joint main sleeve. The insulation protection space with high fireproof performance is provided for the electric connection between the fireproof cables, so that the external fireproof performance of the fireproof cables during the use period is improved, the condition of external fire caused by the self reason of the cables is reduced, and the electric reliability of the use of the cables is greatly improved.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a fire-resistant cable intermediate joint device.
Background
The fire-resistant cable is characterized by fire resistance, no fire transmission and no generation of harmful smoke when a fire disaster occurs, is commonly used in places such as buildings, subways, tunnels and the like, and can provide reliable power transmission and protection when the fire disaster occurs.
However, the existing intermediate connector for electrically connecting fire-resistant cables lacks fire-resistant reliability in fire resistance, so that the fire-resistant electrical performance of the fire-resistant cables is reduced, and the reliability of the whole fire-resistant cable line is affected.
The joint based on the existing fire-resistant cable has the following disadvantages: the existing fire-resistant cable has a fire-resistant effect, but the fire-resistant cable has no fire-resistant performance at the joint of the cables, so that the use reliability of the fire-resistant cable is reduced.
Disclosure of Invention
1. Technical problem to be solved
The utility model aims to provide a fire-resistant cable intermediate joint device, which solves the problem that the use reliability of the fire-resistant cable is reduced because the electric connection part between cables does not have fire resistance although the fire-resistant cable has fire-resistant effect in the prior art.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire-resistant cable intermediate head device, includes joint main cover mechanism and internal thread joint locking mechanism, internal thread joint locking mechanism is threaded connection respectively in the both ends of joint main cover mechanism, joint main cover mechanism includes joint main cover, external screw thread head, compress tightly groove, ceramic silicone rubber compact heap and electrically conductive cover subassembly, joint main cover both ends are provided with respectively with it integrative external screw thread head, external screw thread head periphery equidistance leaves and is equipped with the compress tightly groove, ceramic silicone rubber compact heap inserts and locates in the compress tightly groove, electrically conductive cover subassembly inserts and locates in the joint main cover; the main sleeve of the connector is used for providing a set of insulating protection space with high fireproof performance for the connection of the guide cores of the fireproof cables, and the conductive sleeve assembly is used for sleeving and connecting the guide cores of the two groups of fireproof cables which are electrically connected.
Preferably, the thickness of one end of the ceramic silicon rubber compaction block is consistent with the thickness of the compaction groove, and the thickness of the other end of the ceramic silicon rubber compaction block is larger than the thickness of the compaction groove; the ceramic silicon rubber compression block is used for compressing the fire-resistant cable entering the external screw thread head, after the internal screw thread joint locking mechanism is in threaded connection with the periphery of the external screw thread head, the internal screw thread joint locking mechanism is used for gradually compressing the ceramic silicon rubber compression block on the external screw thread head, so that the ceramic silicon rubber compression block can compress and fix the fire-resistant cable entering the external screw thread head, the cable is effectively fixed in the joint main sleeve mechanism, and the connection tensile strength between the connected fire-resistant cables can be greatly improved.
Preferably, the conductive sleeve component comprises a copper sleeve, a threaded hole and a copper screw, wherein the two ends of one side of the copper sleeve are respectively provided with the threaded holes, the threaded holes are internally threaded into the copper screw, and the outer diameter of the copper sleeve is consistent with the inner diameter of the main joint sleeve; the space inside the copper bush is used for inserting the guide cores of the fire-resistant cables, after the guide cores of the two groups of fire-resistant cables to be connected are inserted into the copper bush, copper screws are screwed into the threaded holes, the guide cores of the fire-resistant cables are fixedly compressed, the installation tightness of the guide cores of the cables in the copper bush is guaranteed while the conductivity of the guide cores to tightly attach the copper bush is guaranteed, and the contact between the guide cores is guaranteed when the guide cores of the two groups of fire-resistant cables enter the copper bush.
Preferably, the main joint sleeve comprises an a stainless steel layer, an aluminum silicate layer and a ceramic silicon rubber layer, wherein the aluminum silicate layer is arranged on the inner side of the a stainless steel layer, and the ceramic silicon rubber layer is coated on the inner side of the aluminum silicate layer; through the composite construction that a stainless steel layer, aluminium silicate layer and ceramic silicon rubber layer are constituteed, the realization is to the inside copper sheathing periphery that provides the conductor core electricity and is connected possess insulating fire behavior, improves the security of cable, avoids reducing the possibility of producing the condition of a fire because of cable itself, when the outside produces the condition of a fire simultaneously, makes the cable keep the validity of normal work in the short term.
Preferably, the internal thread joint locking mechanism comprises a stainless steel layer and an insulating ceramic layer; the inner threaded joint locking mechanism composed of the stainless steel layer and the insulating ceramic layer is used for providing insulating protection for the end part of the joint main sleeve mechanism.
Preferably, the b stainless steel layer is coated on the periphery of the insulating ceramic layer; the stainless steel layer is used for protecting the outer periphery of the insulating ceramic layer, and meanwhile, the waterproof performance of the outer periphery of the insulating ceramic layer is improved.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the fire-resistant cable intermediate joint device, through the assembly formed by the joint main sleeve mechanism and the internal thread joint locking mechanism, a set of insulating protection space with high fire-resistant performance is provided for electric connection between fire-resistant cables, so that the external fire resistance of the fire-resistant cables in the use period is improved, the condition of external fire caused by the cables is reduced, the electric reliability of the cables is greatly improved, and the problem that the use reliability of the fire-resistant cables is reduced due to the fact that the existing fire-resistant cables have fire-resistant effects and no fire resistance exists at the electric connection position between the cables is solved;
2. according to the fire-resistant cable middle joint device, the joint main sleeve is formed by the stainless steel layer a, the aluminum silicate layer and the ceramic silicon rubber layer, and the composite structure formed by the stainless steel layer a, the aluminum silicate layer and the ceramic silicon rubber layer is used for realizing insulation and fireproof performances on the periphery of the copper sleeve which is provided with the conductive core for electric connection, so that the safety of a cable is improved, the possibility of fire caused by the cable is avoided and reduced, and meanwhile, the cable can keep the effectiveness of normal operation in a short period when the fire is generated outside;
3. the fire-resistant cable intermediate joint device comprises an internal thread joint locking mechanism formed by a stainless steel layer b and an insulating ceramic layer, and the end part of a joint main sleeve mechanism is provided with insulating protection through the internal thread joint locking mechanism formed by the stainless steel layer b and the insulating ceramic layer.
Drawings
FIG. 1 is an overall schematic view of a fire resistant cable intermediate joint device of the present utility model;
FIG. 2 is a schematic view of the structure of the joint main sleeve mechanism of the fire-resistant cable intermediate joint device of the present utility model;
FIG. 3 is a schematic view of the structure of the joint main sleeve mechanism of the fire-resistant cable intermediate joint device of the present utility model;
FIG. 4 is a schematic view of the conductive sleeve assembly of the fire resistant cable intermediate connector device of the present utility model;
FIG. 5 is a schematic view of the internal thread joint locking mechanism of the fire resistant cable intermediate joint device of the present utility model;
fig. 6 is a schematic structural view of a ceramic silicone rubber compression block of the fire-resistant cable intermediate joint device of the present utility model.
In the figure: 100. a joint main sleeve mechanism; 101. a joint main sleeve; 1011. a stainless steel layer; 1012. an aluminum silicate layer; 1013. a ceramic silicone rubber layer; 102. an external thread head; 103. a compaction groove; 104. ceramic silicone rubber compacting blocks; 105. a conductive sleeve assembly; 1051. a copper sleeve; 1052. a threaded hole; 1053. copper screws; 200. an internal thread joint locking mechanism; 201. b a stainless steel layer; 202. an insulating ceramic layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a fire-resistant cable intermediate head device, including joint main cover mechanism 100 and female screw joint locking mechanism 200, female screw joint locking mechanism 200 threaded connection respectively in the both ends of joint main cover mechanism 100, joint main cover mechanism 100 includes joint main cover 101, external screw thread head 102, compress groove 103, ceramic silicone rubber compact heap 104 and electrically conductive cover subassembly 105, joint main cover 101 both ends are provided with respectively with it integrative external screw thread head 102, the equidistant separation in external screw thread head 102 periphery is equipped with compresses groove 103, ceramic silicone rubber compact heap 104 inserts in compressing groove 103, electrically conductive cover subassembly 105 inserts in joint main cover 101; the main joint sleeve 101 provides a set of insulating protection space with high fireproof energy for the connection of the guide cores of the fireproof cables, the conductive sleeve assembly 105 is used for sleeving and connecting the guide cores of the two groups of fireproof cables which are connected in an electric connection way, the thickness of one end of the ceramic silicon rubber compression block 104 is consistent with the thickness of the compression groove 103, and the thickness of the other end of the ceramic silicon rubber compression block 104 is larger than the thickness of the compression groove 103; after the external thread head 102 is connected with the external thread head 102 through the external thread head 102 and the internal thread joint locking mechanism 200, the external thread head 102 is gradually pressed with the external thread head 104 by the internal thread joint locking mechanism 200, so that the external thread head 102 can be pressed and fixed by the external thread head 102, the external thread head 102 can be effectively fixed by the external thread head 104, the connection tensile strength between the connected external thread head and the external thread head is greatly improved, the conductive sleeve component 105 comprises a copper sleeve 1051, a threaded hole 1052 and copper screws 1503, the two ends of one side of the copper sleeve 1051 are respectively provided with the threaded hole 1052, the copper screws 1503 are screwed into the threaded hole 1052 through the internal threads, and the external diameter of the copper sleeve 1051 is consistent with the internal diameter of the joint main sleeve 101; after the guide cores of two groups of fire-resistant cables to be connected are inserted into the copper sleeve 1051, copper screws 1503 are screwed into threaded holes 1052 to fix and compress the guide cores of the fire-resistant cables, so that the installation tightness of the guide cores of the cables in the copper sleeve 1051 is ensured while the conductivity of the guide cores to the copper sleeve 1051 is ensured, and the contact between the guide cores is ensured when the guide cores of the two groups of fire-resistant cables enter the copper sleeve 1051;
the joint main cover 101 includes an a stainless steel layer 1011, an aluminum silicate layer 1012, and a ceramic silicone rubber layer 1013, the aluminum silicate layer 1012 being provided on the inner side of the a stainless steel layer 1011, the ceramic silicone rubber layer 1013 being coated on the inner side of the aluminum silicate layer 1012; the composite structure formed by the stainless steel layer 1011, the aluminum silicate layer 1012 and the ceramic silicon rubber layer 1013 realizes that the periphery of the copper sleeve 1051 which is provided with the conductive core for electric connection is provided with insulating fireproof performance, improves the safety of the cable, avoids reducing the possibility of fire caused by the cable, simultaneously ensures that the cable keeps the effectiveness of normal operation in a short period when the fire is generated outside, and the internal thread joint locking mechanism 200 comprises the stainless steel layer 201 and the insulating ceramic layer 202; the inner threaded joint locking mechanism 200 consisting of the b stainless steel layer 201 and the insulating ceramic layer 202 is used for providing insulation protection for the end part of the joint main sleeve mechanism 100, and the b stainless steel layer 201 is coated on the periphery of the insulating ceramic layer 202; the outer periphery of the insulating ceramic layer 202 is protected by the b stainless steel layer 201, and meanwhile, the waterproof property of the outer periphery of the insulating ceramic layer 202 is improved.
Working principle: through the composite construction that a stainless steel layer 1011, aluminum silicate layer 1012 and ceramic silicone rubber layer 1013 constitute, realize possessing insulating fire behavior to the copper sheathing 1051 periphery that inside provides the conductor core electricity and link, improve the security of cable, avoid reducing the possibility because of cable itself produces the condition of a fire, simultaneously when producing the condition of a fire in the outside, make the cable keep the validity of normal work in the short term, through the female screw joint locking mechanism 200 that b stainless steel layer 201 and insulating ceramic layer 202 constitute, realize providing insulating protection for the tip of joint main sheathing mechanism 100, compress tightly the refractory type cable that gets into in the external screw thread head 102 through ceramic silicone rubber clamp block 104, the female screw joint locking mechanism 200 will be gradually ceramic silicone rubber clamp block 104 on the external screw thread head 102 after the peripheral threaded connection of external screw thread head 102, make ceramic silicone rubber clamp block 104 can realize compressing tightly the fixing to the refractory type cable that gets into in the external screw head 102, make the cable obtain effective fixation in joint main sheathing mechanism 100, can improve the copper bonding strength between the connected refractory type cable greatly, the conductor core 1051 is tightly inserted into the conductor core 1051 through the inside space, when the conductor core 1051 is closely contacts the conductor core 1051, the conductor core is fixed, the conductor core 1051 is closely contacts, the conductor core is guaranteed to the conductor core 1051 is closely, when the conductor core 1051 is connected in the inside, the conductor core is closely contacts, the conductor core is guaranteed, the conductor core is closely is screwed into the inside the conductor core inside, and the conductor core is connected, and the conductor core is tightly inside.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and that the simple modification and equivalent substitution of the technical solution of the present utility model can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present utility model.
Claims (6)
1. The utility model provides a fire-resistant cable intermediate head device, includes joint main cover mechanism (100) and internal thread joint locking mechanism (200), its characterized in that, internal thread joint locking mechanism (200) threaded connection is in the both ends of joint main cover mechanism (100) respectively, joint main cover mechanism (100) are including joint main cover (101), external screw thread head (102), compress tightly groove (103), ceramic silicone rubber compact heap (104) and electrically conductive cover subassembly (105), joint main cover (101) both ends are provided with respectively with it integrative external screw thread head (102), external screw thread head (102) peripheral equidistance leaves and is equipped with compress tightly groove (103), ceramic silicone rubber compact heap (104) are inserted and are located in compress tightly groove (103), electrically conductive cover subassembly (105) are inserted and are located in joint main cover (101).
2. A fire resistant cable intermediate joint device according to claim 1, wherein: the thickness of one end of the ceramic silicon rubber compaction block (104) is consistent with the thickness of the compaction groove (103), and the thickness of the other end of the ceramic silicon rubber compaction block (104) is larger than the thickness of the compaction groove (103).
3. A fire resistant cable intermediate joint device according to claim 1, wherein: the conductive sleeve assembly (105) comprises a copper sleeve (1051), threaded holes (1052) and copper screws (1503), the threaded holes (1052) are respectively formed in two ends of one side of the copper sleeve (1051), the copper screws (1503) are screwed into the threaded holes (1052) in an internal thread mode, and the outer diameter of the copper sleeve (1051) is identical to the inner diameter of the joint main sleeve (101).
4. A fire resistant cable intermediate joint device according to claim 1, wherein: the joint main sleeve (101) comprises an a stainless steel layer (1011), an aluminum silicate layer (1012) and a ceramic silicon rubber layer (1013), wherein the aluminum silicate layer (1012) is arranged on the inner side of the a stainless steel layer (1011), and the ceramic silicon rubber layer (1013) is coated on the inner side of the aluminum silicate layer (1012).
5. A fire resistant cable intermediate joint device according to claim 1, wherein: the internal thread joint locking mechanism (200) comprises a b stainless steel layer (201) and an insulating ceramic layer (202).
6. A fire resistant cable intermediate joint device according to claim 5, wherein: the b stainless steel layer (201) is coated on the periphery of the insulating ceramic layer (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322037384.1U CN220324733U (en) | 2023-08-01 | 2023-08-01 | Fire-resistant cable intermediate joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322037384.1U CN220324733U (en) | 2023-08-01 | 2023-08-01 | Fire-resistant cable intermediate joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220324733U true CN220324733U (en) | 2024-01-09 |
Family
ID=89408341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322037384.1U Active CN220324733U (en) | 2023-08-01 | 2023-08-01 | Fire-resistant cable intermediate joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220324733U (en) |
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2023
- 2023-08-01 CN CN202322037384.1U patent/CN220324733U/en active Active
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