A high-security outdoor cable terminal connector

Abstract

The present invention relates to a high-security outdoor cable terminal connector applied to the cable field, comprising a conical protective shell and a connection self-checking unit carried in a cable maintenance platform. The outer end of the conical protective shell is sleeved with a sealing protection component. The sealing protection component, the internal sensing component and the connection self-checking unit are arranged. On the one hand, the incision of the conical protective shell can be wrapped and the shape can be maintained during construction to avoid damage to the subsequent connection position with the communication cable due to a bad incision, effectively ensure the quality and effectiveness of the sealed connection during construction, and reduce the problem of uneven electric field distribution caused by construction errors. On the other hand, the application data of the outdoor cable terminal connector can be collected and judged, and while reducing the failure rate of the outdoor cable terminal connector and the difficulty of maintenance, the safety of the continuous application of the outdoor cable terminal connector can be effectively guaranteed, and the economic benefits of the application of the outdoor cable terminal connector can be promoted.

Description

Technical Field

[0001] The invention relates to a cable terminal joint, in particular to a high-safety outdoor cable terminal joint applied in the cable field. Background Art

[0002] Outdoor cable terminal joints are devices used to connect cables with other electrical equipment or overhead lines outdoors, so that the cable lines can achieve the transmission and distribution of electric energy. They are mainly composed of conductor connection parts, insulation parts, sealing parts, stress control parts and protective shells.

[0003] In outdoor environments, it can ensure the effective connection and stable operation of cables and other equipment, and adapt to various harsh outdoor conditions to ensure the reliability and safety of power transmission. The outdoor cable terminal connector realizes electrical connection through the conductor connection part, the insulation part ensures electrical safety and insulation performance, the sealing part ensures that the connector is not damaged by the external environment, the stress control part optimizes the electric field distribution, and the protective shell provides external protection.

[0004] In the prior art, during the application of outdoor cable terminal connectors, the sealing part, as the connection position with the cable, will be stripped and cut by construction workers using tools during application to ensure effective connection with the cable. However, due to improper application and other factors during the stripping process, the sealing part of the outdoor cable terminal connector may be damaged to a certain extent. In addition, long-term application in outdoor environments may cause uneven electric field distribution in the sealing part, which may lead to subsequent application failures of the cable and reduce cable performance and application safety. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to solve the stripping damage of the sealing part of the outdoor cable terminal joint caused by the construction process, so as to avoid the problem of uneven electric field distribution after the subsequent long-term use of the sealing part.

[0006] In order to solve the above problems, the present invention provides a high-security outdoor cable terminal joint, comprising a cone-shaped protective shell and a connection self-checking unit carried in a cable maintenance platform, the outer end of the cone-shaped protective shell is sleeved with a sealing protection component, a communication cable matched with the cone-shaped protective shell is connected in the sealing protection component, a cable conductor head extending to the upper side of the communication cable is arranged in the communication cable, an embedded wire is embedded in the cone-shaped protective shell, the embedded wire is provided with a joint conductor head extending to the lower side thereof, and the joint conductor head is fixedly connected to the embedded wire, and the outer ends of the embedded wire and the joint conductor head are fixedly sleeved with a winding insulation layer;

[0007] The sealing protection component includes a sealing sheath fixedly sleeved on the outer end of the frustum protective shell and the communication cable, the upper end of the sealing sheath is fixedly connected with a cutout groove sleeve plug-matched with the frustum protective shell, the inner wall of the sealing sheath is fixedly connected with an inner lining sheath corresponding to the position of the wound insulation layer, the inner lining sheath is provided with an internal sensing component matched with the wound insulation layer, the internal sensing component includes two temperature sensing rings embedded in the inner wall of the inner lining sheath, and the inner walls of the two temperature sensing rings are fixedly connected with a linkage barrier sleeve sleeved on the outer side of the wound insulation layer;

[0008] The connected self-inspection unit includes a self-inspection data processing module, the input end of the self-inspection data processing module is connected to a temperature sensing trigger acquisition module and a conductive induction acquisition module, the input ends of the temperature sensing trigger acquisition module and the conductive induction acquisition module are both connected to the internal sensing component signal, the output end of the self-inspection data processing module is connected to a data output module and an abnormal warning module, the output end of the data output module is connected to a display signal set on a cable maintenance platform, and the output end of the abnormal warning module is connected to an alarm signal set on the cable maintenance platform.

[0009] In the above-mentioned high-security outdoor cable terminal joint, on the one hand, the cut of the cone shell can be wrapped and the shape can be maintained during construction, effectively ensuring the quality and effectiveness of the sealed connection during construction and reducing the problem of uneven electric field distribution caused by construction errors; on the other hand, the application data of the outdoor cable terminal joint can be collected and judged, effectively ensuring the safety of the continuous application of the outdoor cable terminal joint and promoting the economic benefits of the application of the outdoor cable terminal joint.

[0010] As a supplement to the present application, a temperature sensing cavity is opened in the temperature sensing ring, and two inner walls of the temperature sensing cavity perpendicular to the radial direction are fixedly connected with multiple corresponding trigger columns, and multiple temperature sensing memory bars are fixedly connected between the two inner walls of the temperature sensing cavity perpendicular to the radial direction, and the temperature sensing memory bars are arranged at intervals from the trigger columns, and the input end of the temperature sensing trigger acquisition module is connected to the trigger column signal.

[0011] As a supplement to the present application, a pair of symmetrically arranged conducting contacts are fixedly connected to the inner wall of the linkage barrier sleeve, and the input end of the conductive sensing acquisition module is connected to the conducting contact signal.

[0012] As a further improvement of the present application, an upper sealing component is provided at the upper end of the notch groove sleeve and is sleeved on the outside of the frustum protective shell. A waist groove is provided at the outer end of the frustum protective shell. The upper sealing component includes an elastic nesting that is buckled on the outside of the waist groove. The lower end of the elastic nesting is fixedly connected to the elastic sleeve, and the lower end of the elastic sleeve is fixedly connected to the notch groove sleeve. A sealing ring that matches the elastic nesting is fixedly sleeved in the waist groove.

[0013] As a further improvement of the present application, a lower sealing assembly is provided at the lower end of the sealing sheath and is sleeved on the outside of the communication cable. The lower sealing assembly includes an inflatable sealing sleeve fixedly connected to the lower end of the sealing sheath, the lower end of the inflatable sealing sleeve is fixedly connected to an auxiliary air sleeve connected thereto, and the outer end of the auxiliary air sleeve is fixedly connected to a sealing hoop.

[0014] As a further improvement of the present application, the input end of the self-test data processing module is also connected to a sealing state acquisition module, and the input end of the sealing state acquisition module is connected to the signal of a pressure probe arranged in the inflatable sealing sleeve.

[0015] As another improvement of the present application, a plurality of conductor connecting parts are fixedly connected to the upper end of the frustum protective shell, the lower end of the conductor connecting part extends into the frustum protective shell and is fixedly connected to the embedded wire, the input end of the self-test data processing module is also connected to the communication status acquisition module, and the input end of the communication status acquisition module is connected to the current collector signal arranged at the upper end of the conductor connecting part.

[0016] As another improved supplement of the present application, the cutout groove sleeve and the lining sleeve are both made of hard plastic, the sealing sleeve is made of elastic material, and is fixedly connected to the cone casing and the communication cable by means of sealant.

[0017] In summary, through the setting of sealing protection components, internal sensing components and connection self-inspection units, on the one hand, the incision of the frustum shell can be wrapped and the shape can be maintained during construction, which effectively plays a role in isolating and protecting the incision, avoiding damage to the subsequent connection position with the communication cable due to poor incision, effectively ensuring the quality and effectiveness of the sealed connection during construction, reducing the problem of uneven electric field distribution caused by construction errors, and effectively improving the stability and safety of outdoor cable terminal connectors during application. On the other hand, the application data of the outdoor cable terminal connector can be collected and judged, which effectively assists in detecting the application damage of the outdoor cable terminal connector, while reducing the failure rate of the outdoor cable terminal connector and reducing the difficulty of maintenance. It can also effectively ensure the safety of the continuous application of the outdoor cable terminal connector and promote the economic benefits of the application of the outdoor cable terminal connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an axonometric diagram of the outdoor cable terminal joint of the first and second embodiments of the present application;

[0019] Figure 2 This is a connection self-check unit application logic diagram for the first and second implementation modes of the present application;

[0020] Figure 3 Exploded diagram of outdoor cable terminal connectors according to the first and second embodiments of the present application;

[0021] Figure 4This is an axonometric diagram of the sealing protection assembly of the first and second embodiments of the present application;

[0022] Figure 5 Exploded diagram of the sealing protection assembly of the first and second embodiments of the present application;

[0023] Figure 6 It is an axonometric cross-sectional view of the sealing protection assembly of the first and second embodiments of the present application;

[0024] Figure 7 It is a front cross-sectional view of the outdoor cable terminal connector of the first and second embodiments of the present application;

[0025] Figure 8 For the first and second embodiments of this application Figure 7 A cross-sectional view of the induction component when it is not triggered;

[0026] Fig. 9 For the first and second embodiments of this application Figure 7 A in the middle is a cross-sectional view of the induction component when it is triggered;

[0027] Fig.10 This is a front cross-sectional view of the sealing protection assembly of the first and second embodiments of the present application when it is not installed to the conical protective shell and the outer end of the communication cable.

[0028] Description of the numbers in the figure:

[0029] 1 cone casing, 11 conductor connection part, 12 embedded wire, 13 joint conductor head, 14 waist groove, 2 sealing protection component, 21 sealing sleeve, 22 notch groove sleeve, 23 lining sleeve, 3 upper sealing component, 31 elastic nesting, 32 elastic sleeve, 4 lower sealing component, 41 gas expansion sealing sleeve, 42 auxiliary gas sleeve, 43 sealing hoop, 5 internal sensing component, 51 temperature sensing ring, 52 linkage barrier sleeve, 53 trigger column, 54 temperature sensing memory strip, 6 sealing ring, 7 communication cable, 71 cable conductor head, 8 winding insulation layer. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1 - Fig.10A high-security outdoor cable terminal connector is shown, which has a cone-shaped protective shell 1 and a connection self-checking unit carried in a cable maintenance platform. The outer end of the cone-shaped protective shell 1 is sleeved with a sealing protection component 2, and a communication cable 7 matched with the cone-shaped protective shell 1 is connected inside the sealing protection component 2. A cable conductor head 71 extending to the upper side of the communication cable 7 is provided inside the communication cable 7. An embedded wire 12 is embedded in the cone-shaped protective shell 1. The embedded wire 12 is provided with a joint conductor head 13 extending to the lower side thereof, and the joint conductor head 13 is fixedly connected to the embedded wire 12. The outer ends of the embedded wire 12 and the joint conductor head 13 are fixedly sleeved with a wound insulation layer 8;

[0033] The sealing protection component 2 includes a sealing sheath 21 fixedly sleeved on the outer ends of the frustum protective shell 1 and the communication cable 7, the upper end of the sealing sheath 21 is fixedly connected with a cutout groove sleeve 22 that is plugged and matched with the frustum protective shell 1, the inner wall of the sealing sheath 21 is fixedly connected with an inner lining sheath 23 corresponding to the wound insulation layer 8, and the inner lining sheath 23 is provided with an inner sensing component 5 that matches the wound insulation layer 8. The inner sensing component 5 includes two temperature sensing rings 51 embedded in the inner wall of the inner lining sheath 23, and the inner walls of the two temperature sensing rings 51 are fixedly connected with a linkage barrier sleeve 52 sleeved on the outer side of the wound insulation layer 8, and the stiffness coefficient of the linkage barrier sleeve 52 is smaller than the stiffness coefficient of the temperature sensing ring 51, and can be driven by the temperature sensing ring 51 to produce elastic deformation;

[0034] The connection self-checking unit includes a self-checking data processing module, the input end of the self-checking data processing module is connected to the temperature-sensing trigger acquisition module and the conductive induction acquisition module, the input ends of the temperature-sensing trigger acquisition module and the conductive induction acquisition module are both connected to the internal sensing component 5 signal, the output end of the self-checking data processing module is connected to the data output module and the abnormal warning module, the output end of the data output module is connected to the display signal arranged on the cable maintenance platform, and the output end of the abnormal warning module is connected to the alarm signal arranged on the cable maintenance platform. Through the setting of the sealing protection component 2, the internal sensing component 5 and the connection self-checking unit, on the one hand, the incision of the cone protective shell 1 can be wrapped and shaped during construction Maintain, effectively isolate and protect the incision, avoid damage to the subsequent connection position with the communication cable 7 caused by poor incision, effectively ensure the quality and effectiveness of the sealed connection during construction, reduce the problem of uneven electric field distribution caused by construction errors, and effectively improve the stability and safety of outdoor cable terminal connectors during application. On the other hand, it can collect and judge the application data of outdoor cable terminal connectors, effectively assist in detecting application damage of outdoor cable terminal connectors, reduce the failure rate of outdoor cable terminal connectors, reduce the difficulty of maintenance, and at the same time effectively ensure the safety of continuous application of outdoor cable terminal connectors, and promote the economic benefits of outdoor cable terminal connectors.

[0035] Figure 2 and Figure 7 - Fig.10It is shown that a temperature sensing cavity is provided in the temperature sensing ring 51, and two inner walls of the temperature sensing cavity perpendicular to the radial direction are fixedly connected with a plurality of corresponding trigger columns 53, and a plurality of temperature sensing memory bars 54 are fixedly connected between the two inner walls of the temperature sensing cavity perpendicular to the radial direction, and the temperature sensing memory bars 54 are arranged at intervals from the trigger columns 53, and the input end of the temperature sensing trigger acquisition module is connected with the trigger column 53 signal, and the cooperation of the trigger column 53 and the temperature sensing memory bar 54 can perform data acquisition and application deformation at the connection environment between the connector conductor head 13 and the cable conductor head 71, and then, when abnormally high temperature occurs, not only can the transmission of the trigger signal be generated, but also the deformation can drive the linkage barrier sleeve 52 to produce a moving away action, so as to avoid subsequent conductive conduction and damage to the sealing protection component 2, thereby effectively ensuring the effectiveness of the sealing connection of the sealing protection component 2 and promoting the safety of long-term application of the outdoor cable terminal connector.

[0036] Figure 2 It is shown that a pair of symmetrically arranged conductive contacts are fixedly connected to the inner wall of the linkage barrier sleeve 52, and the input end of the conductive sensing acquisition module is connected to the conductive contact signal. The setting of the conductive contact can collect data when abnormal discharge occurs at the connection position between the connector conductor head 13 and the cable conductor head 71, which is convenient for the subsequent connection self-test unit to analyze and judge the abnormal real data of the outdoor cable terminal connector, and effectively plays a role of auxiliary monitoring, which can not only ensure the safety of the application of the outdoor cable terminal connector, but also promote the intelligent maintenance of the outdoor cable terminal connector, reduce the maintenance difficulty and maintenance cost, and promote the economic benefits of the outdoor cable terminal connector.

[0037] Figure 1 - Figure 3 It is shown that a plurality of conductor connection parts 11 are fixedly connected to the upper end of the frustum protective shell 1, and the lower end of the conductor connection part 11 extends into the frustum protective shell 1 and is fixedly connected to the embedded wire 12. The input end of the self-test data processing module is also connected to a communication status acquisition module. The input end of the communication status acquisition module is connected to the current collector signal arranged at the upper end of the conductor connection part 11. The current collector can collect data on the stability of the current signal conducted by the outdoor cable terminal connector. When an application abnormality occurs in the outdoor cable terminal connector, the data collection amount of the connection self-test unit can be increased, thereby improving the judgment accuracy and analysis efficiency of the connection self-test unit, thereby promoting the timeliness of abnormality processing and reducing the failure loss caused by the abnormality.

[0038] Figure 1 - Fig.10It is shown that the cutout groove sleeve 22 and the lining sleeve 23 are both made of hard plastic, and the hard plastic includes but is not limited to polymer materials such as polycarbonate (PC), polystyrene (PS), polyoxymethylene (POM), nylon (PA), polyvinyl chloride (PVC), etc., among which polyvinyl chloride (PVC) is a preferred one. The sealing sleeve 21 is made of elastic material, and the elastic material includes but is not limited to polymer materials such as silicone rubber and ethylene propylene rubber, and is fixedly connected to the frustum protective shell 1 and the communication cable 7 through sealant. The cutout groove sleeve 22 can wrap, isolate and maintain the shape of the cutout of the frustum protective shell 1, and can effectively avoid the problem of damage to the conductor in the frustum protective shell 1 due to poor cutout or cutout deformation during subsequent application, thereby effectively ensuring the safety during the construction process, ensuring the effectiveness of the sealing setting, avoiding the problem of uneven electric field distribution caused by conductor damage during the application of the outdoor cable terminal joint, and effectively ensuring the stability and effectiveness of signal transmission of the outdoor cable terminal joint.

[0039] Figure 1 - Fig.10 It is shown that during the construction process of the outdoor cable terminal joint, the construction personnel need to use a stripping tool to strip the lower end of the conical shell 1 to expose the joint conductor head 13, and then use the stripping tool to process the upper end of the communication cable 7 to expose its cable conductor head 71, and then move the sealing protection component 2 to the outside, and move the sealing protection component 2 down on the outside of the communication cable 7, fix the cable conductor head 71 and the joint conductor head 13 together, and then wind several layers of winding insulation layer 8 on the outside of the cable conductor head 71 and the joint conductor head 13, and then move the sealing protection component 2 up, so that the linkage barrier sleeve 52 is continuously sleeved on the outside of the winding insulation layer 8, and the sealing protection component 2 drives the cutout groove sleeve 22 and the lining sleeve 23 to move up together, so that the cutout groove sleeve 22 and the lining sleeve 23 cooperate to squeeze the embedded wire 12 into the conical shell 1, and the cutout groove sleeve 22 is plugged into the cutout position at the lower end of the conical shell 1 Isolation. After the notch groove sleeve 22 and the conical shell 1 are plugged in, the sealant is squeezed into the connection gap between the notch groove sleeve 22 and the conical shell 1 and the sealing sleeve 21 and the communication cable 7 to complete the sealing and protective installation of the sealing protection component 2 on the connection position of the conical shell 1 and the communication cable 7. On the one hand, the notch groove sleeve 22 can be used to isolate and shape the notch position at the lower end of the conical shell 1 to avoid damage to the connection position due to poor incision in the subsequent process, ensure the application safety of the outdoor cable terminal joint, and promote the sealing effect. On the other hand, the lining sleeve 23 can play an effective supporting and protective role, further ensure the safety of the connection position of the cable conductor head 71 and the joint conductor head 13, avoid damage to it in the subsequent application process, avoid the problem of uneven electric field distribution at the connection position, reduce the failure rate in the application process of the outdoor cable terminal joint, and promote the stability and safety of signal transmission.

[0040] Figure 1 - Fig.10 It is shown that in the process of outdoor cable terminal joint application, each acquisition module connected in the self-test unit will collect data on the application status of the outdoor cable terminal joint. The input end of the current collector is connected to the conductor at the upper end of the conductor connection part 11, and can collect the current signal transmitted by the conductor connection part 11, and then transmit it to the communication status acquisition module. The communication status acquisition module transmits the current data to the self-test data processing module. The self-test data processing module can analyze the current data, judge the stability of the signal transmission of the outdoor cable terminal joint, and then transmit the self-test data to the data output module. The application data of the outdoor cable terminal joint can be displayed through the display of the cable maintenance platform, which is convenient for technicians and maintenance personnel to view the status of the outdoor cable terminal joint. When the self-test data processing module judges that the current transmitted by the outdoor cable terminal joint is unstable and abnormal, it will also send an abnormal control to the abnormal warning module, so that the abnormal warning module controls the alarm located on the cable maintenance platform to start, and sends a warning signal to the technicians and maintenance personnel, effectively promoting the efficiency of emergency response, and realizing the automatic detection of the outdoor cable terminal joint and promoting the maintenance.

[0041] During the long-term use of the outdoor cable terminal joint, when the connection position is damaged, the linkage barrier sleeve 52 wraps the winding insulation layer 8, and can collect whether there is abnormal discharge at the joint conductor head 13 and the cable conductor head 71 or whether the winding insulation layer 8 is broken down and damaged. When the above situation occurs again, the two conductive contacts located on the inner side of the linkage barrier sleeve 52 will generate a conductive signal. After receiving the conductive trigger signal, the conductive sensing acquisition module transmits it to the self-test data processing module, and the self-test data processing module analyzes and processes it, and then combines the current data transmitted by the communication status acquisition module to judge the abnormality, and then displays the judgment data on the display of the cable maintenance platform through the data output module, and at the same time activates the alarm through the abnormal warning module, so that technical personnel and maintenance personnel can deal with the abnormality in time, maintain and repair the outdoor cable terminal joint, and ensure the safety and effectiveness of subsequent outdoor cable terminal joint applications;

[0042] When abnormally high temperatures appear at the joint conductor head 13 and the cable conductor head 71, the sensing cavity of the temperature sensing ring 51 will sense the temperature, causing the temperature sensing memory strip 54 therein to undergo temperature-sensitive deformation, and then generate a thermal contraction effect, driving the temperature sensing ring 51 to produce a contraction deformation, and then causing the trigger columns 53 at two corresponding positions to come into abutment contact. The signal of the abutment contact of the trigger columns 53 will be transmitted to the temperature sensing trigger acquisition module, and the temperature sensing trigger acquisition module will output the collected data to the self-test data processing module. In the process of the temperature sensing ring 51 producing a contraction deformation, the linkage barrier sleeve 52 will be driven to produce a synchronous deformation effect, causing the linkage barrier sleeve 52 to produce a diameter expansion deformation, and continuously move away from the winding insulation layer 8, so that after a temperature abnormality occurs, the linkage barrier sleeve 52 can be caused to expand. The spacer 52 is away from the winding insulation layer 8 to avoid discharge at the joint conductor head 13 and the cable conductor head 71, which may cause damage to the sealing protection component 2 and the internal induction component 5. After receiving the trigger signal, the self-test data processing module will make a comprehensive judgment on the data based on the current data transmitted by the communication status acquisition module and whether the conductive induction acquisition module has transmitted the conduction signal in the previous acquisition interval, and transmit the processed data to the data output module. The abnormal data will be displayed on the display of the cable maintenance platform, and the abnormal warning module will be controlled to start the alarm to urge technicians and maintenance personnel to check and process the abnormal data to ensure the safety and stability of the application of outdoor cable terminal joints.

[0043] Second implementation method:

[0044] Figure 1 - Fig.10 A high-security outdoor cable terminal connector is shown. As a functional additional item of the first embodiment, an upper sealing component 3 is arranged on the upper end of the notch groove sleeve 22 and is sleeved on the outside of the conical protective shell 1. A waist groove 14 is opened at the outer end of the conical protective shell 1. The upper sealing component 3 includes an elastic nesting 31 buckled on the outside of the waist groove 14. The lower end of the elastic nesting 31 is fixedly connected with an elastic sheath 32, and the lower end of the elastic sheath 32 is fixedly connected to the notch groove sleeve 22. A sealing ring 6 matching the elastic nesting 31 is fixedly sleeved in the waist groove 14. The cooperation between the upper sealing component 3 and the sealing ring 6 can further increase the stability of the connection between the sealing protection component 2 and the conical protective shell 1, promote the sealing and wrapping effect of the sealing protection component 2 on the conical protective shell 1, and thus can effectively resist the external environment and extend the service life of the outdoor cable terminal connector.

[0045] Figure 1 - Fig.10It is shown that a lower sealing component 4 is provided at the lower end of the sealing sheath 21 and is sleeved on the outside of the communication cable 7. The lower sealing component 4 includes an inflatable sealing sleeve 41 fixedly connected to the lower end of the sealing sheath 21, and an auxiliary air sleeve 42 connected thereto is fixedly connected to the lower end of the inflatable sealing sleeve 41, and a sealing hoop 43 is fixedly connected to the outer end of the auxiliary air sleeve 42. The setting of the lower sealing component 4 can effectively improve the connection sealing effect of the sealing protection component 2 on the communication cable 7, and effectively promote the sealing protection effect of the sealing protection component 2 on the connection position of the joint conductor head 13 and the cable conductor head 71. While improving the sealing effect and promoting the application safety of the outdoor cable terminal joint, it can also increase the applicability of the outdoor cable terminal joint, and can connect and cooperate with communication cables 7 of different models and specifications, effectively ensuring the stability and safety of the sealed connection.

[0046] Figure 2 It is shown that the input end of the self-test data processing module is also connected to a sealing status acquisition module, and the input end of the sealing status acquisition module is connected to the signal of the pressure probe arranged in the inflatable sealing sleeve 41. The setting of the sealing status acquisition module can effectively detect the safety of the sealing connection position between the lower sealing component 4 and the communication cable 7, ensure the effectiveness of the sealing of the communication cable 7 by the lower sealing component 4, and can also assist in timely judgment of abnormalities to ensure the effectiveness of the sealed connection of the communication cable 7.

[0047] Figure 1 - Fig.10 It is shown that during the construction of the outdoor cable terminal joint, the sealing protection component 2, the upper sealing component 3 and the lower sealing component 4 are pre-set on the outside of the communication cable 7 with the cable conductor head 71 stripped off, and the lower sealing component 4 is placed on the lower side. Then, after the cable conductor head 71 and the joint conductor head 13 are connected and the insulating layer 8 is wound around the outside, the sealing protection component 2 is moved up, so that the cut groove sleeve 22 is inserted into the outer end of the cone shell 1, and then the construction personnel lift the elastic nest 31 to stretch the elastic sleeve 32, and then buckle the elastic nest 31 on the outside of the waist groove 14 to form a sealing barrier. The construction personnel squeeze the sealant into the connection position between the elastic nesting 31 and the waist groove 14, and then insert the sealing ring 6 into the gap between the waist groove 14 and the elastic nesting 31 to complete the fastening and installation of the upper end of the sealing protection component 2. The buckling of the elastic nesting 31 and the waist groove 14 can effectively ensure the fastening of the sealing protection component 2 on the frustum protective shell 1, and can also effectively increase the sealing effect of the sealing protection component 2, promote the wrapping isolation and shape retention of the cut groove sleeve 22 on the lower end of the frustum protective shell 1, and with the cooperation of the sealing ring 6, further promote the sealing effect of the upper end of the sealing protection component 2;

[0048] Then the construction personnel squeeze the sealant into the connection position between the auxiliary air sleeve 42, the air expansion sealing sleeve 41 and the communication cable 7, and then rotate the locking bolt on the sealing hoop 43 to produce a locking shrinkage and extrusion deformation on the auxiliary air sleeve 42. When the auxiliary air sleeve 42 produces a shrinkage deformation, the gas therein will enter the air expansion sealing sleeve 41, causing an expansion and pressurization effect on the air expansion sealing sleeve 41, thereby causing the air expansion sealing sleeve 41 to swell and deform, so that the auxiliary air sleeve 42 is tightly connected to the communication cable 7 under the tightening action of the sealing hoop 43, and the air expansion sealing sleeve 41 maintains a continuous tightening action with the communication cable 7 under the action of air expansion. On the one hand, it can achieve the fixing effect on the communication cable 7, and on the other hand, it can effectively ensure the sealing of the connection position between the sealing protection component 2 and the communication cable 7, promote the service life of the outdoor cable terminal joint, and reduce the maintenance times.

[0049] Then, in the subsequent application of the outdoor cable terminal joint, the pressure probe located in the air-expanding sealing sleeve 41 can continuously monitor the pressure inside the air-expanding sealing sleeve 41, and can transmit the data to the sealing state acquisition module. The sealing state acquisition module transmits the pressure data to the self-test data processing module. The self-test data processing module judges the pressure data. When it is judged that there is no abnormality in the pressure data, the self-test output is transmitted to the data output module, and displayed through the display of the cable maintenance platform. When it is judged that the pressure data is abnormal, while displaying the abnormal data on the display, the abnormal warning module will also control the alarm to start, and send an abnormal reminder to the technicians and maintenance personnel. Then the technicians and maintenance personnel judge the cause of the abnormality through the data on the display, and take emergency maintenance measures in time to ensure the outdoor cable terminal. Safety and stability of terminal joint application; when the pressure data increases abnormally, it is judged that the sealed connection between the cone casing 1 and the communication cable 7 may be damaged by external extrusion, or the communication cable 7 may slide downward in a sealed manner. The maintenance personnel need to arrive at the site immediately to handle the abnormality and maintain the outdoor cable terminal joint. When the pressure data decreases abnormally, it is judged that the lower sealing component 4 is broken, the seal of the sealing protection component 2 may be damaged, or the communication cable 7 is detached in a sealed manner. The technicians need to coordinate, transfer and notify the communication data of the outdoor cable terminal joint in time to ensure the effectiveness of communication data transmission. The maintenance personnel arrive at the site in time to replace the outdoor cable terminal joint to reduce the impact and economic losses caused by communication weakening or interruption.

[0050] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A high-security outdoor cable terminal connector, characterized in that: The invention comprises a cone-shaped protective shell (1) and a connection self-checking unit mounted in a cable maintenance platform, wherein the outer end of the cone-shaped protective shell (1) is sleeved with a sealing protection component (2), the sealing protection component (2) is connected with a communication cable (7) matched with the cone-shaped protective shell (1), the communication cable (7) is provided with a cable conductor head (71) extending to the upper side thereof, the cone-shaped protective shell (1) is embedded with an inner wire (12), the inner wire (12) is provided with a joint conductor head (13) extending to the lower side thereof, and the joint conductor head (13) is fixedly connected to the inner wire (12), and the outer ends of the inner wire (12) and the joint conductor head (13) are fixedly sleeved with a winding insulation layer (8); The sealing protection component (2) comprises a sealing sleeve (21) fixedly mounted on the outer end of the conical protective shell (1) and the communication cable (7); the upper end of the sealing sleeve (21) is fixedly connected to a notch sleeve (22) plug-fitted with the conical protective shell (1); the inner wall of the sealing sleeve (21) is fixedly connected to an inner lining sleeve (23) at a position corresponding to the wound insulation layer (8); the inner lining sleeve (23) is provided with an internal sensing component (5) matched with the wound insulation layer (8); the internal sensing component (5) comprises two temperature sensing rings (51) embedded in the inner wall of the inner lining sleeve (23); the inner walls of the two temperature sensing rings (51) are fixedly connected to a linkage barrier sleeve (52) mounted on the outer side of the wound insulation layer (8); The connection self-checking unit comprises a self-checking data processing module, the input end of the self-checking data processing module is connected to a temperature sensing triggering acquisition module and a conductive sensing acquisition module, the input ends of the temperature sensing triggering acquisition module and the conductive sensing acquisition module are both connected to the internal sensing component (5) signal, the output end of the self-checking data processing module is connected to a data output module and an abnormal warning module, the output end of the data output module is connected to the display signal arranged on the cable maintenance platform, and the output end of the abnormal warning module is connected to the alarm signal arranged on the cable maintenance platform; A temperature sensing cavity is provided in the temperature sensing ring (51), two inner walls of the temperature sensing cavity perpendicular to the radial direction are fixedly connected to a plurality of corresponding triggering posts (53), a plurality of temperature sensing memory bars (54) are fixedly connected between the two inner walls of the temperature sensing cavity perpendicular to the radial direction, and the temperature sensing memory bars (54) and the triggering posts (53) are arranged at intervals, and an input end of the temperature sensing trigger acquisition module is signal-connected to the triggering posts (53); A pair of symmetrically arranged conducting contact pieces are fixedly connected to the inner wall of the linkage barrier sleeve (52), and the input end of the conductive induction acquisition module is connected to the conducting contact piece signal.

2. A high-security outdoor cable terminal connector according to claim 1, characterized in that: The upper end of the notch groove sleeve (22) is provided with an upper sealing component (3) sleeved on the outside of the frustum protective shell (1), the outer end of the frustum protective shell (1) is provided with a waist groove (14), the upper sealing component (3) includes an elastic nest (31) buckled on the outside of the waist groove (14), the lower end of the elastic nest (31) is fixedly connected with an elastic sleeve (32), and the lower end of the elastic sleeve (32) is fixedly connected to the notch groove sleeve (22), and a sealing ring (6) matching with the elastic nest (31) is fixedly sleeved in the waist groove (14).

3. A high-security outdoor cable terminal joint according to claim 1, characterized in that: The lower end of the sealing sheath (21) is provided with a lower sealing component (4) which is sleeved on the outside of the communication cable (7), and the lower sealing component (4) includes an inflatable sealing sleeve (41) fixedly connected to the lower end of the sealing sheath (21), and the lower end of the inflatable sealing sleeve (41) is fixedly connected to an auxiliary air sleeve (42) connected thereto, and the outer end of the auxiliary air sleeve (42) is fixedly connected to a sealing hoop (43).

4. A high-security outdoor cable terminal joint according to claim 3, characterized in that: The input end of the self-test data processing module is also connected to a sealing state acquisition module, and the input end of the sealing state acquisition module is connected to a pressure probe signal arranged in the inflatable sealing sleeve (41).

5. A high-security outdoor cable terminal joint according to claim 1, characterized in that: The upper end of the frustum protective shell (1) is fixedly connected to a plurality of conductor connecting parts (11); the lower end of the conductor connecting part (11) extends into the frustum protective shell (1) and is fixedly connected to the embedded wire (12); the input end of the self-test data processing module is also connected to a communication status acquisition module; the input end of the communication status acquisition module is signal-connected to a current collector arranged at the upper end of the conductor connecting part (11).

6. A high-security outdoor cable terminal joint according to claim 1, characterized in that: The notch groove sleeve (22) and the lining sleeve (23) are both made of hard plastic, and the sealing sleeve (21) is made of elastic material and is fixedly connected to the frustum casing (1) and the communication cable (7) by means of sealing glue.

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