Cable outer sheath state detection device
Technical Field
The utility model belongs to the field of cable detection, and particularly relates to a cable outer sheath state detection device.
Background
In the detection process of the cable, detection facilities are often used for detecting the state of the cable outer sheath, namely the insulation performance of the outer sheath, however, the existing detection facilities need to strip the cable firstly in the detection and electrifying process, the inner core of the cable can be connected and electrified after being exposed, so that the detection is performed, the operation process is quite complicated, and the detection is inconvenient.
Disclosure of utility model
In view of the above, the present utility model is directed to solving the drawbacks of the prior art, and provides a cable outer sheath state detecting device for solving the problems of the prior art.
In order to achieve the above purpose, the utility model provides a cable outer sheath state detection device, which comprises a detection table, wherein a current detection part is arranged at the rear edge of the upper end of the detection table, a bracket is fixedly arranged at the front edge of the upper end of the detection table, a guide sleeve is slidably arranged at the rear part of the upper end of the bracket, a fixing frame is fixedly arranged at the front end of the guide sleeve, a metal needle is arranged in the fixing frame in a penetrating manner, a limiting circular groove is formed in the middle of the upper end of the bracket, the metal needle is positioned right above the limiting circular groove, a lower metal ring is fixedly arranged at the side, far away from the bracket, of the upper end of the detection table, an upper metal ring is elastically arranged right above the lower metal ring of the upper end of the detection table, and the upper metal ring, the lower metal ring and the metal needle are electrically connected with the current detection part.
In the above technical solution, preferably, a guide frame is fixedly mounted at the rear part of the upper end of the bracket, and the guide sleeve is attached to the surface of the guide frame.
Preferably, the rear of the lower metal ring of the upper end surface of the detection table is fixedly provided with a directional prism, the outer surface of the directional prism is provided with a directional sleeve in a fitting way, the middle part of the upper end of the upper metal ring is fixedly provided with a connecting pull frame, and the end part of the connecting pull frame is fixedly connected with the front end of the directional sleeve.
Preferably, the top cap is inlaid at the upper end part of the directional prism, a spring body is wound on the outer side of the directional prism, and two ends of the spring body are respectively fixed with the lower end of the top cap and the upper end of the directional sleeve.
Preferably, the current detecting part comprises a battery fixedly mounted at the rear edge of the upper end of the detecting table, the positive end of the battery is electrically connected with the upper end of the metal needle, the negative end of the battery is electrically connected with a resistor, the end of the resistor is electrically connected with an ammeter, the ammeter is fixed on the detecting table, and the upper metal ring and the lower metal ring are connected with the ammeter.
Preferably, a threaded rod is rotatably arranged on the upper end face of the detection table near the side of the bracket, a thread bush is screwed on the outer surface of the threaded rod, and the side face of the thread bush is fixedly connected with the guide sleeve.
Compared with the prior art, the utility model has the following beneficial effects: through direct rotation threaded rod, can order about the thread bush and move down, and then drive the metal needle and slide down, the guide pin bushing laminating is in the guide frame and is slided this moment, with supplementary metal needle moves down, make the metal needle can pass the oversheath of cable and the inner core of cable and contact, with the switch-on cable, its process need not the wire stripping and can switch on and detect, with this effectual improvement detects the convenience, and under the effect of restriction circular slot, can restrict the cable under the metal needle, let the metal needle can not appear shifting phenomenon at puncture in-process cable, guarantee that the operation of metal needle puncture cable goes on smoothly promptly.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a spring body of the present utility model;
fig. 3 is a schematic view of the threaded rod of the present utility model.
In the figure: 1. a detection table; 2. an ammeter; 3. a battery; 4. a resistor; 5. a metal ring is arranged on the upper part; 6. a lower metal ring; 7. a spring body; 8. a bracket; 9. a fixing frame; 10. a threaded rod; 11. limiting the round groove; 12. a metal needle; 13. guide sleeve; 14. a guide frame; 15. a thread sleeve; 16. a directional sleeve; 17. connecting a pull frame; 18. a top cap; 19. a directional prism; 20. and (3) a cable.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The cable sheath state detection device as shown in fig. 1-3 comprises a detection table 1, wherein a current detection part is arranged at the rear edge of the upper end of the detection table 1, the current detection part comprises a battery 3 fixedly arranged at the rear edge of the upper end of the detection table 1, the battery 3 plays a role in supplying power, the positive end of the battery 3 is electrically connected with the upper end of a metal needle 12, the metal needle 12 is in contact with the inner core of a cable 20 so as to conduct electricity, the negative end of the battery 3 is electrically connected with a resistor 4, the end of the resistor 4 is electrically connected with an ammeter 2, the resistor 4 plays a role in protecting a circuit, the ammeter 2 is fixed on the detection table 1, one end of the ammeter 2 is connected with the resistor 4, the other end of the ammeter 2 is connected with an upper metal ring 5 and a lower metal ring 6, and the upper metal ring 5 and the lower metal ring 6 are connected with the ammeter 2.
The upper end front edge department fixed mounting of test bench 1 has bracket 8, the upper end rear portion slidable mounting of bracket 8 has guide pin bushing 13, the upper end rear portion fixed mounting of bracket 8 has guide frame 14, guide frame 14 plays the effect of carrying out the vertical direction to guide pin bushing 13, guide pin bushing 13 laminating in the surface of guide frame 14, the up end of test bench 1 is close to the side rotation of bracket 8 and installs threaded rod 10, threaded rod 10's surface screw has threaded sleeve 15, threaded rod 10 plays the effect of driving threaded sleeve 15 up-and-down motion, and then order about the mount 9 up-and-down motion, the side and the guide pin bushing 13 fixed connection of threaded sleeve 15, the front end fixed mounting of guide pin bushing 13 has mount 9.
The inside of mount 9 runs through and installs metallic needle 12, and mount 9 plays and bears fixed effect to metallic needle 12, and restriction circular slot 11 has been seted up at the upper end middle part of bracket 8, and metallic needle 12 is located restriction circular slot 11 directly over, and restriction circular slot 11 plays and carries out spacing effect to cable 20, and the side fixed mounting of keeping away from bracket 8 in the upper end of detection platform 1 has down metal ring 6.
The upper metal ring 5 is elastically arranged right above the lower metal ring 6 at the upper end of the detection table 1, the lower metal ring 6 and the upper metal ring 5 play a role in conducting current, the directional prism 19 is fixedly arranged at the rear of the lower metal ring 6 at the upper end surface of the detection table 1, the directional sleeve 16 is mounted on the outer surface of the directional prism 19 in a fitting mode, the directional prism 19 and the directional sleeve 16 play a role in enabling the upper metal ring 5 to vertically move up and down, the connecting pull frame 17 is fixedly arranged in the middle of the upper end of the upper metal ring 5, the end part of the connecting pull frame 17 is fixedly connected with the front end of the directional sleeve 16, the connecting pull frame 17 plays a role in fixing the upper metal ring 5 and the directional sleeve 16 together, meanwhile, the upper end part of the directional prism 19 is inlaid with the top cap 18.
The outside winding of directional prism 19 has the spring body 7, and the both ends of spring body 7 are fixed with the lower extreme of top cap 18, the upper end of directional cover 16 respectively, and the spring body 7 plays the effect of promoting directional cover 16 to press last metal ring 5 on cable 20, go up metal ring 5, lower metal ring 6, metal needle 12 and electric connection of electric current detection spare.
During detection, the connecting pull frame 17 is firstly grabbed to lift the upper metal ring 5, the orientation sleeve 16 is attached to the orientation prism 19 to slide, the spring body 7 is contracted and deformed, then the cable 20 is placed in the lower metal ring 6 and the limiting circular groove 11 on the bracket 8, then the upper metal ring 5 is loosened, the upper metal ring 5 is pushed by the spring body 7 to move downwards, the lower metal ring 6 and the upper metal ring 5 can be wrapped on the outer sheath of the cable 20, then the threaded rod 10 is directly rotated, the threaded sleeve 15 can be driven to move downwards, the metal needle 12 is driven to slide downwards, the guide sleeve 13 is attached to the guide frame 14 to slide to assist the metal needle 12 to move downwards, the metal needle 12 can pass through the outer sheath of the cable 20 to be in contact with the inner core of the cable 20, the battery 3 is electrified in a communicating manner, the ammeter 2 is watched, when no numerical value exists on the ammeter 2, the outer sheath of the cable 20 has good insulation performance, and when the numerical value exists on the ammeter 2, the outer sheath of the ammeter 20 has poor insulation performance, and the phenomenon of conductivity exists.
In the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.