CN219457002U - Repeatable teaching aid for installing high-voltage cable accessories - Google Patents

Abstract

The utility model relates to a repeatable teaching aid for installing high-voltage cable accessories, which comprises an intermediate joint body, wherein the intermediate joint body comprises a crimping pipe for crimping a conductor on the cable body, a shielding cover, a stress cone, a copper shell and a waterproof shell, the shielding cover, the stress cone, the copper shell and the waterproof shell are arranged outside the crimping pipe in a matched installation and positioning manner, the crimping pipe and the shielding cover are detachably arranged through a connecting structure and can be repeatedly used for a plurality of times, and the shielding cover, the stress cone, the copper shell and the waterproof shell are all detachably arranged and can be repeatedly used for a plurality of times. The utility model can repeatedly assemble and use all parts for a plurality of times, achieves the purpose of repeated teaching, improves the repeated use rate of the cable accessory, reduces the fund investment of the training teaching aid, and effectively improves the economic benefit.

Description

Repeatable teaching aid for installing high-voltage cable accessories

Technical Field

The utility model relates to a repeatable teaching aid for installing high-voltage cable accessories.

Background

At the same time, the cable accessory which is an important ring in the cable system slowly shows accidents caused by certain problems in installation, such as lead sealing effectiveness problem, stress cone positioning problem, cable polishing problem, and the problem of knowing the cable accessory by installers, and the like, so that the power supply stability and the personal benefit of a user are seriously influenced; in order to maximally reduce the skill shortage of the installer, further cable accessory installation teaching is required for the installer.

At present, various problems exist in the installation teaching of the cable accessories, such as the conventional cable accessories are disposable, namely, the conventional cable accessories comprise conductor crimping, stress cone positioning and the like, and cannot be detached for reuse after installation, so that the cable accessories are seriously wasted and have high input cost.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a repeatable teaching aid for installing a high-voltage cable accessory, which is convenient to disassemble and assemble, can be repeatedly used for a plurality of times, and reduces input cost.

In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model provides a repeatable teaching aid of high tension cable annex installation, includes the intermediate head body, the intermediate head body is including the crimping pipe that is used for crimping the conductor on the cable body, sets up in the outer shield cover, stress cone, copper shell and the waterproof shell of cooperation installation and location of crimping pipe, crimping pipe and shield cover pass through connection structure and can dismantle the setting and can repetitious re-use, shield cover, stress cone, copper shell and waterproof shell all can dismantle the setting and can repetitious re-use.

Preferably, the connecting structure comprises threaded holes arranged at two ends of the crimping pipe and screws arranged in the threaded holes, and the threaded holes are annularly arranged in a plurality of directions along the axial direction of the two ends of the crimping pipe.

Preferably, the shielding cover comprises an upper half cover and a lower half cover, wherein the upper half cover and the lower half cover can be opened and closed and are connected through a locking mechanism, and the locking mechanism is fixed through a detachable locking agent.

Preferably, the locking mechanism comprises a pin shaft arranged on the upper half cover and a buckle arranged on the lower half cover, and the pin shaft is matched with the buckle to connect the upper half cover and the lower half cover.

Preferably, the shielding cover is made of stainless steel, and a tinned copper braided wire is arranged in the shielding cover and connected with the outside.

Preferably, the stress cone is arranged in a half-section structure.

Preferably, a first observation window is formed in the copper shell, and a first illuminating lamp is arranged on the inner side wall of the copper shell.

Preferably, a second observation window is formed in the waterproof shell, and a second lighting lamp is arranged on the inner side wall of the waterproof shell.

Preferably, the middle joint body further comprises a lead sealing temperature detection device, the lead sealing temperature detection device comprises a temperature sensor, a controller in signal connection with the temperature sensor, and a display and an alarm which are electrically connected with the controller, when the temperature sensor detects an induction signal and feeds the induction signal back to the controller, the controller converts the induction signal into a digital signal and displays the digital signal in real time through the display, and when the temperature exceeds the preset temperature, an alarm is given out through the alarm.

Preferably, the two ends of the copper shell are arranged with the cable body through lead sealing, and the temperature sensor is arranged on the cable body corresponding to the lead sealing position.

In summary, the utility model has the advantages that:

1. the crimping pipe, the shielding cover, the stress cone, the copper shell and the waterproof shell are all detachably arranged and can be repeatedly used for a plurality of times, and the crimping pipe of the middle joint is optimally designed to be detachably arranged through the connecting structure by virtue of the normal disposable confining pressure structure, so that the structure and the operation characteristics of the original cable accessory can be ensured, students can understand the connection mode and meaning of the cable conductor, meanwhile, the detachable function between the crimping pipe and the cable conductor is realized, the purpose of repeated teaching is achieved, the repeated use rate of the cable accessory is improved, the fund investment of a training teaching aid is reduced, and the economic benefit is effectively improved;

2. the shielding cover is connected through the locking mechanism and fixed through the detachable locking agent, so that the structure and the operation characteristics of the original cable accessory can be ensured, meanwhile, the detachable function between the shielding cover and the cable is realized, the purpose of repeated teaching is achieved, the tinned copper braided wire is arranged in the shielding cover and connected with the outside, the grounding protection function is realized, the high-voltage power cable is prevented from breakdown and leakage, when the high-voltage power cable breaks down internally due to a certain reason, the high-voltage power cable can be absorbed by the tinned copper braided wire to be scattered off to the ground network, and if the breakdown current is relatively large, the tinned copper braided wire can also absorb large current, so that the safety of personnel and equipment is protected;

3. the copper shell and the waterproof shell are respectively provided with a first observation window and a second observation window, and the copper shell and the waterproof shell are respectively internally provided with a first illumination lamp and a second illumination lamp, so that a student can more intuitively know the structure principle of the cable accessory and the multi-layer installation matching relation during the installation of the cable accessory, the student can conveniently and well master the structure principle, the training of the installation of the 110kV cable accessory and the on-site operation on-site training are carried out, the student can fully know the related manufacturing process requirements, the manufacturing qualification rate of the 110kV intermediate connector of the power cable accessory is improved, and the safety of the training and the on-site operation of the 110kV intermediate connector of the power cable accessory is improved;

4. the stress cone is arranged to be of a half-section structure, the internal structure of the stress cone is directly and three-dimensionally embodied by teaching of a teacher, the design, production, inspection and installation points of the stress cone can be comprehensively known, and problems possibly occurring in the operation process can be predictively judged, so that a learner can deeply experience the fine parts of the installation process;

5. in order to be convenient for control temperature and time when sealing lead, avoid causing the damage to inside cable body, seal lead setting between copper sheathing both ends and the cable body, temperature-sensing ware sets up on the cable body that seals lead department corresponds, specifically sets up on the cable outer shielding layer of cable body aluminium sheath fracture department, detects the inductive signal and feeds back the inductive signal to the controller when temperature-sensing ware, and the controller is with inductive signal conversion digital signal and show through the display real time, sends the alarm through the alarm when the temperature surpasses the temperature of predetermineeing.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a crimp tube according to the present utility model;

FIG. 3 is a schematic view of a shielding case according to the present utility model;

FIG. 4 is a schematic view of the copper shell structure of the present utility model;

FIG. 5 is a schematic view of the structure of the stress cone according to the present utility model;

fig. 6 is a schematic structural view of the waterproof case of the present utility model;

fig. 7 is a schematic structural view of an assembly body formed by assembling a copper shell into a waterproof shell;

FIG. 8 is a schematic structural view of a second assembly of the utility model comprising a crimp tube, a shield, and a stress cone assembled to a cable body in sequence;

FIG. 9 is a schematic view of the assembled structure of FIGS. 7 and 8;

fig. 10 is a schematic structural diagram of a temperature detecting device in the present utility model.

Reference numerals:

1. a cable body; 11. a conductor; 2. a crimping tube; 3. a shield; 31. an upper half cover; 32. a lower half cover; 4. a stress cone; 5. a copper shell; 51. a first viewing window; 52. a first illumination lamp; 6. a waterproof housing; 61. a second viewing window; 62. a second illumination lamp; 7. a connection structure; 71. a threaded hole; 72. a screw; 8. a locking mechanism; 81. a pin shaft; 82. a buckle; 9. a temperature detecting device; 91. a temperature sensor; 92. a controller; 93. a display; 94. an alarm; 10. tin-plated copper braided wire.

Detailed Description

In order to more clearly illustrate the general inventive concept, the present utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

1-10, including the intermediate head body, the intermediate head body is including being used for crimping cable body 1 upper conductor 11's crimping pipe 2, sets up in crimping pipe 2 outer cooperation installation and the shield cover 3, stress cone 4, copper shell 5 and the waterproof shell 6 of location, crimping pipe 2 and shield cover 3 can dismantle the setting and can repetitious usage through connection structure 7, shield cover 3, stress cone 4, copper shell 5 and waterproof shell 6 all can dismantle the setting and can repetitious usage.

In order to facilitate the disassembly and assembly of the crimping tube 2 and to enable repeated use of the crimping tube, the connecting structure 7 comprises threaded holes 71 arranged at two ends of the crimping tube 2 and screws 72 arranged in the threaded holes 71, and a plurality of threaded holes 71 are annularly arranged along the axial direction of two ends of the crimping tube 2.

In order to facilitate the disassembly and assembly of the shielding cover 3 and the repeated use of the shielding cover 3, the shielding cover 3 comprises an upper half cover 31 and a lower half cover 32, the upper half cover 31 and the lower half cover 32 can be opened and closed, and are connected through a locking mechanism 8, and the locking mechanism 8 is fixed through a detachable locking agent. The locking mechanism 8 comprises a pin 81 arranged on the upper half cover 31 and a buckle 82 arranged on the lower half cover 32, and the pin 81 is matched with the buckle 82 to connect the upper half cover 31 and the lower half cover 32. The shielding cover 3 is made of stainless steel, and a tinned copper braided wire 10 is arranged in the shielding cover 3 and is connected with the outside.

In order to facilitate the disassembly and assembly of the stress cone 4 and the more visual observation, the stress cone 4 is provided with a half-section structure.

Referring to fig. 7, in order to facilitate the trainee to install the assembly into the copper shell 5, the copper shell 5 is provided with a first observation window 51, and a first illumination lamp 52 is disposed on the inner side wall of the copper shell 5.

Referring to fig. 8, in order to facilitate the assembly body-the copper shell 5 being integrally assembled into the waterproof housing 6, the waterproof housing 6 is provided with a second observation window 61, and in order to facilitate the observation of the internal structure of the waterproof housing 6 and the positional relationship with the copper shell 5, the inner side wall of the waterproof housing 6 is provided with a second illumination lamp 62.

Wherein, first light 52 and second light 62 all adopt the LED lamp area, and the LED lamp area can be sheared and prolonged as required, satisfies different size illumination needs, and waterproof nature is good, uses safelyr.

In order to be convenient for carry out the accuse to temperature and time when the lead sealing, avoid causing the damage to the internal cable body, the intermediate head body still includes lead sealing temperature-detecting device 9, lead sealing temperature-detecting device 9 includes temperature sensor 91, with temperature sensor 91 signal connection's controller 92 to and display 93 and alarm 94 that is connected with the controller 92 electricity, detect the inductive signal when temperature sensor 91 and with inductive signal feedback to controller 92, the controller 92 converts inductive signal into digital signal and shows through display 93 real time, sends the alarm through alarm 94 when the temperature exceeds the temperature of predetermineeing. The lead sealing arrangement is arranged between the two ends of the copper shell 5 and the cable body 1, and the temperature sensor is arranged on the cable body 1 corresponding to the lead sealing position.

The installation step comprises the following steps:

1. installing the crimping pipe 2, fixing the fastening screw 72 by using a corresponding torque wrench, ensuring the effectiveness of connection and meeting the requirement of disassembly and assembly;

2. the shield 3 is mounted and effectively fixed to the cable conductor 11;

3. calculating the positioning of the stress cone 4 on the cable, and fixing the stress cone 4 with a half-section structure on the cable body 1 according to the positioning size, so that students can fully understand the relative positions of all parts of the stress cone 4, the crimping pipe 2, the shielding cover 3 and the cable shielding layer; after the complete stress cone 4 is expanded, the stress cone is fixed on a cable according to the requirements of an installation specification, so that students learn and understand the installation process of the real stress cone 4;

4. the temperature sensor 91 is arranged on the cable outer shielding layer at the fracture of the cable aluminum sheath, the PIB strip and the copper mesh are wrapped according to the drawing and the specification requirements, and the copper mesh is effectively fixed at two ends of the cable aluminum sheath;

the copper shell 5 is fixed on a cable, the copper shell 5 is provided with a first observation window 51, a student can know the relative position requirement of the copper shell and the stress cone 4 by opening the first observation window 51, and the student can clearly know the internal structure by opening a first lighting lamp 52;

5. starting a temperature detection device 9, fixing a copper shell 5 on an aluminum cable sheath in a lead sealing manner, fully combining a lead sealing method, time and temperature, and training a learner in the process to ensure that the electrical connection of a grounding system can be met, the mechanical connection can be also met, the main insulation of the cable is not damaged due to lead sealing, and the aim of effective training is fulfilled;

6. the waterproof shell 6 is arranged, a second observation window 61 is arranged on the waterproof shell 6, a student can know the relative position requirement of the second observation window 61 and the copper shell 5, and a second illuminating lamp 62 can be turned on to know the internal structure of the second observation window 61 clearly;

7. the simulation is completed, the teaching mould is disassembled and cleaned, and the installation effect is checked; and meanwhile, corresponding preparation work is carried out for training of the next group of students.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which is defined in the appended claims.

Claims (10)

1. The utility model provides a repeatable teaching aid of high tension cable annex installation, includes the intermediate head body, its characterized in that: the middle joint body comprises a crimping pipe used for crimping a conductor on the cable body, a shielding cover, a stress cone, a copper shell and a waterproof shell are arranged outside the crimping pipe in a matched and installed mode and positioned mode, the crimping pipe and the shielding cover can be detachably arranged through a connecting structure and can be repeatedly used, and the shielding cover, the stress cone, the copper shell and the waterproof shell can be detachably arranged and can be repeatedly used.

2. The repeatable teaching aid for high voltage cable accessory installation of claim 1, wherein: the connecting structure comprises threaded holes arranged at two ends of the crimping pipe and screws arranged in the threaded holes, and a plurality of threaded holes are annularly arranged along the axial direction of the two ends of the crimping pipe.

3. The repeatable teaching aid for high voltage cable accessory installation of claim 2, wherein: the shielding cover comprises an upper half cover and a lower half cover, wherein the upper half cover and the lower half cover can be opened and closed and are connected through a locking mechanism, and the locking mechanism is fixed through a detachable locking agent.

4. A repeatable teaching aid for high voltage cable accessory installation according to claim 3 and wherein: the locking mechanism comprises a pin shaft arranged on the upper half cover and a buckle arranged on the lower half cover, and the pin shaft is matched with the buckle to connect the upper half cover and the lower half cover.

5. The repeatable teaching aid for high voltage cable accessory installation of claim 4, wherein: the shielding cover is made of stainless steel, and a tinned copper braided wire is arranged in the shielding cover and is connected with the outside.

6. The repeatable teaching aid for high voltage cable accessory installation of claim 5, wherein: the stress cone is arranged in a half-section structure.

7. The repeatable teaching aid for high voltage cable accessory installation of claim 6, wherein: the copper shell is provided with a first observation window, and the inner side wall of the copper shell is provided with a first lighting lamp.

8. The repeatable teaching aid for high voltage cable accessory installation of claim 7, wherein: the waterproof shell is provided with a second observation window, and the inner side wall of the waterproof shell is provided with a second lighting lamp.

9. A high voltage cable accessory mounted repeatable teaching aid according to any one of claims 1 to 8 and characterised in that: the middle joint body further comprises a lead sealing temperature detection device, the lead sealing temperature detection device comprises a temperature sensor, a controller in signal connection with the temperature sensor, a display and an alarm, wherein the display and the alarm are electrically connected with the controller, when the temperature sensor detects an induction signal and feeds the induction signal back to the controller, the controller converts the induction signal into a digital signal and displays the digital signal in real time through the display, and when the temperature exceeds the preset temperature, the alarm is given out through the alarm.

10. The repeatable teaching aid for high voltage cable accessory installation of claim 9, wherein: the two ends of the copper shell are arranged with the cable body through lead sealing, and the temperature sensor is arranged on the cable body corresponding to the lead sealing position.