CN213717161U - Quick combined cable intermediate joint - Google Patents
Quick combined cable intermediate joint Download PDFInfo
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- CN213717161U CN213717161U CN202120031786.9U CN202120031786U CN213717161U CN 213717161 U CN213717161 U CN 213717161U CN 202120031786 U CN202120031786 U CN 202120031786U CN 213717161 U CN213717161 U CN 213717161U
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Abstract
The utility model provides a swift combination formula cable intermediate head, swift combination formula cable intermediate head is prefabricated formula structure, mainly including connecting main part and connector, the connector have two and respectively with the both ends that connect the main part are connected, the connector includes the connection hardware fitting that switches on with cable fixed connection's joint stress body and with the cable conductor, it includes insulating main part and conductive hardware fitting to connect the main part, conductive hardware fitting imbeds the inside of insulating main part, insulating main part is equipped with first through-hole, conductive hardware fitting is equipped with the second through-hole, first through-hole, the coaxial setting of second through-hole, the second through-hole is the internal thread hole, be equipped with the external screw thread on the connection hardware fitting, connection hardware fitting with second through-hole threaded connection. The utility model has the advantages that: the quick assembly of the cable intermediate joint can be realized.
Description
Technical Field
The utility model relates to a cable intermediate head especially relates to a swift combination formula cable intermediate head.
Background
The existing cable intermediate joint mainly has a cold shrinkage type and a heat shrinkage type. The cold-shrinkage type intermediate joint needs to be expanded in a factory in a pre-expansion mode, the joint main body is placed into the supporting pipe after being expanded by using expansion equipment in the factory, and the supporting pipe is drawn out to enable the joint main body to retract during field installation. The thermal contraction type intermediate joint adopts a radiation crosslinking process, the inner diameter of the joint main body is pre-enlarged in a factory, and the joint main body is retracted by adopting heating modes such as open fire or electric heating and the like during field installation.
The defects of the existing cable intermediate joint are as follows:
1. both cold-shrink and heat-shrink type intermediate connectors require the expansion process of the connector body in the factory to expand the inner diameter of the connector body to allow installation onto a cable. The production process is complex and the manufacturing cost is high.
2. The cold-shrinkage type intermediate joint is characterized in that a supporting pipe is arranged in the inner diameter of a joint rubber main body after pre-expansion, and after the rubber is expanded and stretched for a long time, the rubber can be elastically decayed, so that the retraction performance is reduced, the expanded joint has short storage time and must be used as soon as possible, otherwise, the rubber is retracted and reduced after the expansion period and can only be discarded. The heat-shrinkable intermediate joint needs high-temperature heating when being installed, but is not convenient to use because open fire or no power supply is usually allowed on site.
3. The cold-shrinkage type and the hot-shrinkage type intermediate joints are required to be sleeved on a cable shielding layer in advance before the conductor is crimped and temporarily placed when the intermediate joints are installed on site. Therefore, the stripping size of the cable needs to be increased (more than twice the length of the joint), and the longer the cable is stripped, the greater the damage risk is, and a potential safety hazard point is easily generated.
Therefore, how to provide a cable intermediate joint capable of achieving quick assembly is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a swift combination formula cable intermediate head.
The utility model provides a swift combination formula cable intermediate head, swift combination formula cable intermediate head is prefabricated formula structure, mainly including connecting main part and connector, the connector have two and respectively with the both ends that connect the main part are connected, the connector includes the connection hardware fitting that switches on with cable fixed connection's joint stress body and with the cable conductor, it includes insulating main part and conductive hardware fitting to connect the main part, conductive hardware fitting imbeds the inside of insulating main part, insulating main part is equipped with first through-hole, conductive hardware fitting is equipped with the second through-hole, first through-hole, the coaxial setting of second through-hole, the second through-hole is the internal thread hole, be equipped with the external screw thread on the connection hardware fitting, connection hardware fitting with second through-hole threaded connection.
As a further improvement of the present invention, the joint stressor includes a conductive stressor cone and an insulator, the insulator has a head portion at one end and a tail portion at the other end, and the conductive stressor cone is embedded in the tail portion of the insulator.
As a further improvement, the insulator is provided with a third through hole, the link fitting is provided with a blind hole, the first through hole, the second through hole, the third through hole and the blind hole are coaxially arranged, and the first through hole, the second through hole, the third through hole and the blind hole are round holes.
As a further improvement of the present invention, the insulator is in the shape of a truncated cone, the diameter of the head of the insulator is smaller than that of the tail thereof, and the tail of the insulator is provided with a limit bump.
As a further improvement of the present invention, both ends of the insulating main body are respectively provided with a conical through hole matched with the insulator, the conical through hole is provided with the first through hole coaxially.
As a further improvement of the utility model, the joint main body is formed by compression molding of rubber.
As a further improvement of the present invention, the outer surface of the insulating main body of the joint main body is provided with a conductive outer shield layer.
As a further improvement of the present invention, the rotation directions of the threads at both ends of the conductive fitting are opposite.
The utility model has the advantages that: through the scheme, the quick assembly of the cable middle joint can be realized.
Drawings
Fig. 1 is an exploded view of the utility model relates to a quick-assembled cable intermediate head.
Fig. 2 is an assembly schematic diagram of the utility model relates to a swift combination formula cable intermediate head.
Fig. 3 is a schematic view of a joint main body of a quick-assembly cable intermediate joint of the present invention.
Fig. 4 is a schematic diagram of the connection fitting of the quick combination type cable intermediate joint.
Fig. 5 is a schematic view of a joint stress body of a quick-assembly cable intermediate joint of the present invention.
Detailed Description
The present invention will be further described with reference to the following description and embodiments.
As shown in fig. 1 to 5, a quick-assembling type cable intermediate connector is a prefabricated structure, and mainly comprises a connector main body 1 and a connector, the two connectors are respectively connected with the two ends of the connector main body 1, each connector comprises a connector stress body 3 fixedly connected with a cable 4 and a connecting hardware fitting 2 communicated with a cable conductor 41, the contact body 1 includes an insulating body 11 and a conductive fitting 12, the conductive fitting 12 is embedded inside the insulating body 11, the insulating body 11 is provided with a first through hole 111, the conductive fitting 12 is provided with a second through hole 121, the first through hole 111 and the second through hole 121 are coaxially arranged, the second through hole is an internal threaded hole, the connecting hardware fitting 2 is provided with an external thread 22, and the connecting hardware fitting 2 is in threaded connection with the second through hole 121 of the conductive hardware fitting 12.
The joint stress body 3 comprises a conductive stress cone 32 and an insulator 31, wherein one end of the insulator 31 is a head part, the other end of the insulator 31 is a tail part, and the conductive stress cone 32 is embedded in the tail part of the insulator 31.
The insulator 31 is provided with a third through hole 312, the link fitting 2 is provided with a blind hole 21, the first through hole 111, the second through hole 121, the third through hole 312 and the blind hole 21 are coaxially arranged, and the first through hole 111, the second through hole 121, the third through hole 312 and the blind hole 21 are round holes.
The insulator 31 is in a truncated cone shape, the diameter of the head of the insulator 31 is smaller than that of the tail of the insulator, the tail of the insulator 31 is provided with a limit bump 311, and the limit bump 311 is matched with the end surface of the insulating main body 11 to limit the installation position of the insulator 31.
Two ends of the insulating main body 11 are respectively provided with a conical through hole 112 matched with the insulator 31, and the conical through hole 112 and the first through hole 111 are coaxially arranged.
The joint main body 1 is formed by compression molding of rubber.
The outer surface of the insulating main body 11 of the joint main body 1 is provided with a conductive outer shielding layer 13.
The rotation directions of the threads at the two ends of the conductive hardware 12 are opposite.
The connecting hardware fitting 2 and the conductive hardware fitting 12 are both formed by processing copper.
The utility model provides a pair of swift combination formula cable intermediate head adopts prefabricated formula structure, need not expand in advance in mill, divides the main part triplex to carry out the field installation, and light rotatory main part can be with connecting both ends cable zonulae occludens, firm in connection and through-flow capacity are strong. The storage time of the joint can reach more than 5 years, and the remarkable advantages of low manufacturing cost, long storage period and simple and quick field installation of the joint are realized.
The utility model provides a pair of swift combination formula cable intermediate head, its assembling process is as follows:
prefabrication of the quick combined type cable intermediate joint is completed in a factory, and then two sections of cables 4 are connected and conducted through the quick combined type cable intermediate joint in an installation site.
The connection and conduction process of the two sections of cables comprises the following steps: stripping two sections of cables 4 to be butted, sequentially exposing a cable conductor 41, a cable insulating layer 42, a cable semi-conductor shielding layer 43 and a cable metal shielding layer 44, wherein the outermost layer is a cable outer sheath 45, respectively sleeving two joint stress bodies 3 on the two sections of cables 4 according to the process size to enable a conductive stress cone 32 to be superposed with the cable semi-conductor shielding layer 43, respectively sleeving two connecting fittings 2 on the stripped and exposed cable conductor 41, performing pressure welding and fastening by using a pressure welding clamp, tightly fastening and pressing the connecting fittings 2 and the cable conductor 41, respectively installing the two connecting fittings 2 from two ends of a joint main body 1, screwing the connecting fittings 2 into the conductive fittings 12 to enable the connecting fittings 2 to be tightly connected with the conductive fittings 12 through threads, enabling the end faces of the two connecting fittings 2 to be in contact with each other, realizing stable conduction connection of the two sections of cables 4, and after the process size is reached, and finishing the installation.
The utility model provides a pair of swift combination formula cable intermediate head adopts two sections plug-in and the positive reverse screw thread revolution mechanic of intermediate conductor, realizes the quick installation that connects, need not the spring crimping structure of being responsible, and product simple structure, conductor connection are reliable, and manufacturing cost is low.
The utility model provides a pair of swift combination formula cable intermediate head has following advantage:
(1) the utility model discloses the mode of innovation adopt prefabricated formula and insert formula to fuse will connect the design to the triplex, and two joint stressors 3 adopt the push-and-pull mode to install respectively on connecting the both ends cable, then insert joint main part 1, can realize that the cable is the shortest to open and shell the size, reduce to open and shell work load and damage risk. Meanwhile, the expansion process is not needed, the problem of rubber elasticity attenuation is avoided, the storage time is long, and the manufacturing cost is low.
(2) The utility model discloses innovatively adopt and connect 1 built-in conductive hardware fittings 12 of main part, design conductive hardware fittings 12 for hole thread structure and both ends thread opposite direction of rotation, connect in the connecting hardware fittings 2 back difference plug-in joint main part 1 of both ends cable erection joint stressor 3 and outband thread, only need to connect 1 rotations of main part and can easily connect 2 screw threads screw in of the connecting hardware fittings 2 of the outband thread of both ends cable, the completion back of screwing, accomplish and connect 1 installation of main part promptly, firm in connection and through-flow ability are strong, can prevent to connect 1 dimensional deviation of walking of main part simultaneously, also need not to adopt other complicated instruments to install.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (7)
1. The utility model provides a swift combination formula cable intermediate head which characterized in that: swiftly make up formula cable intermediate head is prefabricated formula structure, mainly including connecting main part and connector, the connector have two and respectively with the both ends of connecting the main part are connected, the connector includes the link connection anchor clamps that switch on with cable fixed connection's joint stress body and with the cable conductor, connect the main part and include insulating main part and conductive fitting, conductive fitting embedding is in the inside of insulating main part, insulating main part is equipped with first through-hole, conductive fitting is equipped with the second through-hole, first through-hole, the coaxial setting of second through-hole, link connection anchor clamps with conductive fitting's second through-hole threaded connection.
2. A quick-connect modular cable intermediate joint as recited in claim 1, further comprising: the joint stress body comprises a conductive stress cone and an insulator, one end of the insulator is a head, the other end of the insulator is a tail, and the conductive stress cone is embedded into the tail of the insulator.
3. A quick-connect modular cable intermediate joint as recited in claim 2, further comprising: the insulator is provided with a third through hole, the connecting hardware fitting is provided with a blind hole, the first through hole, the second through hole, the third through hole and the blind hole are coaxially arranged, and the first through hole, the second through hole, the third through hole and the blind hole are round holes.
4. A quick-connect modular cable intermediate joint as recited in claim 2, further comprising: the insulator is in a cone frustum shape, the diameter of the head of the insulator is smaller than that of the tail of the insulator, and the tail of the insulator is provided with a limiting bump.
5. A highly axially modular cable intermediate joint as set forth in claim 4, wherein: the two ends of the insulation main body are respectively provided with a conical through hole matched with the insulator, and the conical through hole and the first through hole are coaxially arranged.
6. A quick-connect modular cable intermediate joint as recited in claim 1, further comprising: and the outer surface of the insulating main body of the joint main body is provided with a conductive outer shielding layer.
7. A quick-connect modular cable intermediate joint as recited in claim 1, further comprising: and the rotation directions of the threads at the two ends of the conductive hardware fitting are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120031786.9U CN213717161U (en) | 2021-01-07 | 2021-01-07 | Quick combined cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120031786.9U CN213717161U (en) | 2021-01-07 | 2021-01-07 | Quick combined cable intermediate joint |
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| Publication Number | Publication Date |
|---|---|
| CN213717161U true CN213717161U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120031786.9U Active CN213717161U (en) | 2021-01-07 | 2021-01-07 | Quick combined cable intermediate joint |
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| CN (1) | CN213717161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769091A (en) * | 2021-01-07 | 2021-05-07 | 广东安恒电力科技有限公司 | Quick combined type cable intermediate joint and cable intermediate connection method |
-
2021
- 2021-01-07 CN CN202120031786.9U patent/CN213717161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769091A (en) * | 2021-01-07 | 2021-05-07 | 广东安恒电力科技有限公司 | Quick combined type cable intermediate joint and cable intermediate connection method |
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