Cable audio detection device

Abstract

The utility model relates to a cable audio frequency detection device, which comprises audio frequency equipment, a telescopic insulating rod and a locking piece, the audio frequency equipment is detachably arranged at the front end part of the insulating rod through a fixing device, and when the insulating rod retracts to the shortest length, the locking piece is fixed on the insulating rod. And the locking piece is fixedly connected with the insulating rod to lock the insulating rod at the shortest length. The device is simple in structure, convenient to operate, beneficial to improving the detection efficiency and the detection precision, and convenient to carry.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable fault detection equipment, and particularly relates to a cable audio detection device. Background Art

[0002] The pantograph of the EMU obtains 25kV high-voltage electricity from the line contact network and transmits it to the equipment under the vehicle through the high-voltage cable on the roof. The fault of the high-voltage cable terminal is divided into discharge of the internal assembly layer of the cable terminal and discharge of the external assembly layer of the cable terminal. At present, there is no effective prevention and optimization measure for discharge of the internal assembly layer.

[0003] By collecting and analyzing the audio data of high-voltage cable terminals, it is helpful to predict and deal with potential faults of high-voltage cable terminals in advance. However, there is no special tooling for high-voltage cable audio testing. It is necessary to use a tape measure to measure the length of the test pole required for the operation, fix the test pole by wrapping tape, and use tape to wrap the audio equipment on the top of the grounding pole, which is inconvenient and affects the work efficiency. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a cable audio detection device which has a simple structure, is easy to operate, is conducive to improving detection efficiency and detection accuracy, and is easy to carry.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A cable audio detection device comprises an audio device, a retractable insulating rod and a locking piece. The audio device is detachably mounted on the front end of the insulating rod through a fixing device. When the insulating rod is retracted to the shortest length, the locking piece is fixedly connected to the insulating rod to lock the insulating rod at the shortest length.

[0007] Furthermore, the retractable insulating rod includes multiple insulating tubes with gradually decreasing diameters which are sequentially fitted from the outside to the inside. When the multiple tubes are fully extended, the multiple tubes are fixed to each other through interference fit. The multiple tubes are respectively a last tube section, a first tube section and multiple intermediate tube sections.

[0008] Furthermore, the locking member is an end cap with an external thread, and the last section of the insulating rod has an internal thread. After the first section and the middle section are fully retracted to the last section, the end cap is connected to the last section via a thread, and the first section and the middle section are locked in the last section; or, the locking member includes an end cap, and locking components are correspondingly arranged on the end cap and the last section, and the end cap is fixedly connected to the last section using the locking component.

[0009] Furthermore, a plurality of pin holes arranged along the length direction are provided on the first pipe section and the multiple intermediate pipe sections, and a fixing pin hole is provided on the last pipe section. The fixing pin hole is plugged into the corresponding pin hole on the first pipe section or the intermediate pipe section by a fixing pin to lock the insulating rod at any length.

[0010] Furthermore, the plurality of pin holes provided on the first pipe section and the plurality of intermediate pipe sections are arranged at equal intervals after being extended to the maximum length.

[0011] Furthermore, scales are engraved on the first pipe section and the multiple intermediate pipe sections, the distance between the fixing pin hole of the last pipe section and the rear end surface of the insulating rod is L0, and the starting scale corresponding to the first pin hole of the first pipe section is L0.

[0012] Furthermore, the fixing device of the audio equipment is detachably fixedly connected to the front end surface of the insulating rod via a plug-in structure.

[0013] Furthermore, the plug-in structure includes an insertion rod arranged on the fixing device and a socket arranged on the front end surface of the insulating rod, and the insertion rod is inserted into the socket to fix the audio device on the insulating rod.

[0014] Furthermore, the fixing device of the audio device is provided with a clamping device for clamping and fixing the audio device on the fixing device.

[0015] Furthermore, the clamping device includes a fixing part and a clamping part, the insertion rod and the clamping part are both mounted on the fixing part, the clamping part includes two clamping arms capable of changing the clamping distance, the two clamping arms are connected by an elastic member, and the audio device is clamped and fixed by the two clamping arms.

[0016] In summary, the cable audio detection device provided by the utility model has the following advantages compared with the prior art:

[0017] (1) The overall structure of the detection device is simple. The insulating rod can be quickly adjusted to the required length of the operation by telescoping the insulating rod, so that the detection device can adapt to the length required for different operations. The operation is simple and convenient. Compared with the traditional detection method, the detection device no longer needs to use auxiliary working tools such as tape measures and tapes, and reduces the operation links such as on-site insulation rod length measurement and equipment gluing and fixing, which greatly avoids the influence of the operator's subjectivity on the detection results, and is conducive to improving the detection efficiency and detection accuracy.

[0018] (2) When the detection device is not in use, the locking piece can be used to lock the insulating rod at the shortest length, so that the insulating rod can be retracted and packaged, shortening the size of the insulating rod and making it easier to carry, thereby realizing the portability function of the insulating rod.

[0019] (3) The detection device is provided with a fixing pin hole and a fixing pin at the top of the last tube section of the telescopic insulating rod. The outer surfaces of the insulating rods of the telescopic sections other than the last tube section are provided with scale lines and pin holes, so that during the high-voltage cable audio test operation, the insulating rods of the required length can be quickly and conveniently prepared and fixed, which is conducive to further improving the detection efficiency.

[0020] (4) The fixing device of the audio device in the detection device is fixed to the front end surface of the insulating rod through a detachable plug-in structure, which can realize the rapid disassembly and assembly of the audio device, further improving the detection efficiency.

[0021] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0023] In the attached picture:

[0024] Figure 1 It is an exploded diagram of the structure of the detection device of the utility model;

[0025] Figure 2 yes Figure 1 AA section view.

[0026] In the figure:

[0027] Audio device 1, insulating rod 2, last pipe section 21, first pipe section 22, middle pipe section 23, latch hole 24, fixing pin hole 25, fixing latch 26, internal thread 27, scale line 28, locking piece 3, end cap 31, external thread 32, fixing device 4, and plug rod 41.

[0028] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 and Figure 2 As shown, the utility model provides a cable audio detection device, which is used to collect high-voltage cable audio data using an audio device to determine the fault point of the cable.

[0033] The cable audio detection device includes an audio device 1, a retractable insulating rod 2 and a locking piece 3. The audio device 1 is detachably mounted on the front end of the insulating rod 2 through a fixing device 4. When the insulating rod 2 is retracted to the shortest length, the locking piece 3 is fixedly connected to the insulating rod 2 to lock the insulating rod 2 at the shortest length. When detection is required, the insulating rod 2 is extended to the required operating length.

[0034] The overall structure of the detection device is simple. The required length of the operation can be adjusted arbitrarily by telescoping the insulating rod 2, so that the detection device can adapt to the required length of different operations. The operation is simple and convenient. Compared with the traditional detection method, the detection device no longer needs to use auxiliary working tools such as tape measures and tapes, which greatly avoids the influence of the operator's subjectivity on the detection results, and is conducive to improving the detection efficiency and detection accuracy. When the detection device is not in use, the locking member 3 can be used to lock the insulating rod 2 at the shortest length, so that the insulating rod 2 can be retracted and packaged for easy carrying.

[0035] In this embodiment, the telescopic insulating rod 2 preferably includes a plurality of insulating tubes with gradually decreasing diameters and fitted in sequence from the outside to the inside, the plurality of tubes being respectively a terminal tube section 21 (i.e., the tube section with the thickest diameter at the rear end of the insulating rod), a first tube section 22 (i.e., the tube section with the thinnest diameter at the front end of the insulating rod), and a plurality of intermediate tube sections 23. When the plurality of tubes are fully extended, the tube sections are fixed to each other by interference fit when extended to the maximum length. The telescopic structure of the insulating rod 2 is simple and convenient in the telescopic operation process, can realize free telescopic extension, and is conducive to accurately controlling the telescopic length of the insulating rod 2.

[0036] In this embodiment, the end pipe section 21 and the multiple intermediate pipe sections 23 are preferably hollow pipes, the end pipe section 21 is a hollow pipe with a closed rear end face, the intermediate pipe sections 23 are all hollow pipes that penetrate, and the first pipe section 22 is preferably a solid insulating pipe, so as to facilitate the fixed installation of the audio device 1 on the front end face of the first pipe section 22. The inner walls of the end pipe section 21 and the multiple intermediate pipe sections 23 are smooth surfaces, so that the pipe sections can be freely extended and retracted. The insulating rod 2 is also preferably made of a stainless steel pipe.

[0037] In this embodiment, as an implementation method, the locking member 3 preferably adopts an end cap 31 with an external thread 32, and the end section 21 of the insulating rod 2 has an internal thread 27, and the internal thread 27 is arranged in the front section area of ​​the end section 21 close to the adjacent middle section 23 (i.e., the sub-end section), and the first section 22 and the middle section 23 can be completely retracted into the interior of the end section 21. When the first section 22 and the middle section 23 are completely retracted into the interior of the end section 21, the end cap 31 is connected to the end section 21 through a thread, and the end cap 31 is used to lock and encapsulate the first section 22 and the middle section 23 in the interior of the end section 21. At this time, the insulating rod 2 is at the shortest length, which is convenient for carrying.

[0038] The locking member 3 may also adopt another embodiment, in which the locking member 3 adopts an end cap without threads, and a locking assembly is correspondingly arranged on the end cap and the end pipe section 21. The locking assembly is used to fix the end cap to the end pipe section 21 of the insulating rod 2, and the first pipe section 22 and the middle pipe section 23 are all locked and encapsulated inside the end pipe section 21. In this structure, there is no need to set an internal thread inside the end pipe section 21.

[0039] In this embodiment, it is further preferred that a plurality of pin holes 24 arranged along the length direction are provided on the first pipe section 22 and the multiple intermediate pipe sections 23, and a fixing pin hole 25 is provided on the last pipe section 21. The fixing pin hole 25 is arranged at one end close to the adjacent intermediate pipe section 23, and the fixing pin hole 25 is connected with the corresponding pin hole 24 on the first pipe section 22 or the intermediate pipe section 23 by using a fixing pin 26, so as to lock the insulating rod 2 at any operating length.

[0040] By extending the insulating rod 2, the insulating rod 2 can be fixed at any required working length through the fixing pin 26. When the extended length is short, the fixing pin 26 is used to simultaneously pass through the fixing pin hole 25 on the last pipe section 21 and the pin holes 24 on other pipe sections. This structure is simple and convenient to operate, and the insulating rod 2 can be quickly fixed at a specific working length, which is conducive to further improving the detection efficiency.

[0041] In this embodiment, the fixing latch 26 can be a separately pluggable latch or a spring latch, which makes the fixing latch 26 more convenient to use and prevents it from being lost.

[0042] In order to more conveniently and accurately adjust the length of the insulating rod 2, in the present embodiment, it is further preferred that the multiple pin holes 24 provided on the first pipe section 22 and the multiple intermediate pipe sections 23 are arranged at equal intervals after being extended to the maximum length, and the distance between the last pin hole 24 close to the last pipe section 21 on the intermediate pipe section 23 adjacent to the last pipe section 21 and the fixing pin hole 25 on the last pipe section 21 is also equal to the spacing between the other pin holes 24. More preferably, a pin hole 24 is provided at every 5 cm. Of course, the length of the interval can be set arbitrarily as needed to meet the operation adjustment requirements.

[0043] In this embodiment, preferably, scale lines 28 are engraved on the first pipe section 22 and the multi-section intermediate pipe sections 23, the distance between the fixing pin hole 25 of the last pipe section 21 and the rear end surface of the insulating rod 2 is designed to be L0, the starting scale corresponding to the first plug hole 24 of the first pipe section 22 is L0, and the subsequent plug holes 24 increase in sequence according to the set spacing, and the extended length of the insulating rod 2 can be calculated.

[0044] In actual use, when the required extension operation length L of the insulating rod 2 is ≥ L0, the operator can extend the insulating rod 2 outward. When the insulating rod 2 is extended to the required length for the operation, the fixing pin 26 on the last pipe segment 21 is inserted into the pin hole 24 on the extended part of the insulating rod 2 and the fixing pin hole 25 on the last segment 21 at the same time, so as to lock the extension length of the insulating rod 2, that is, to lock the insulating rod 2 at the extension length required for the operation.

[0045] In this embodiment, the fixing device 4 of the audio device 1 is detachably fixedly connected to the front end face of the insulating rod 2 (i.e., the front end face of the first pipe section 22) through a plug-in structure, and the fixed connection between the audio device 1 and the insulating rod 2 is achieved by plugging, so that the audio device 1 can be quickly disassembled and assembled. When in use, it is convenient to install the audio device 1 on the top of the insulating rod 2, and after use, it is convenient to remove the audio device 1 from the top of the insulating rod 2, so that the first pipe section 22 and the multiple intermediate pipe sections 23 in the insulating rod 2 are all retracted into the last pipe section 21, so that the insulating rod 2 is retracted to the shortest length, and then the end cap 31 is connected to the last pipe section 21 through a thread, and all the first pipe sections 22 and the intermediate pipe sections 23 are completely blocked in the last pipe section 21 of the insulating rod 2.

[0046] In the present embodiment, it is further preferred that the plug-in structure includes an insertion rod 41 arranged on the fixing device 4 of the audio device 1, and a socket (not shown in the figure) arranged on the front end surface of the first pipe section 22 of the insulating rod 2. The audio device 1 can be fixed on the insulating rod 2 by inserting the insertion rod 41 into the socket accordingly. The operation is simple and convenient, and the audio device 1 can be quickly disassembled and assembled on the insulating rod 2.

[0047] In order to prevent the fixing device 4 from falling off the front end surface of the first pipe section 22 during inspection, it is further preferred in the present embodiment that an interference fit is adopted between the outer diameter of the insertion rod 41 on the fixing device 4 and the inner diameter of the insertion hole; or, corresponding protrusions and grooves are provided between the outer surface of the insertion rod 41 and the inner surface of the insertion hole, which are snap-fitted after insertion; or, a rotating snap-fit ​​structure is provided between the insertion rod 41 and the insertion hole, and the insertion rod 41 can be stabilized in the insertion hole by rotating it after insertion.

[0048] In this embodiment, the fixing device 4 of the audio device 1 is further preferably provided with a clamping device (not shown in the figure) for clamping and fixing the audio device 1 on the fixing device 4. The audio device 1 is installed by the clamping device, which facilitates the disassembly and assembly of the audio device 1 on the fixing device 4.

[0049] The clamping device includes a fixing part and a clamping part. The above-mentioned insertion rod 41 is arranged on one side of the fixing part and is an integral structure with the fixing part. The clamping part is also installed on the fixing part. The clamping part includes two clamping arms (not shown in the figure) that can change the clamping distance. The two clamping arms are connected by an elastic member. The audio device 1 is clamped and fixed by the two clamping arms. The elastic member is preferably a spring.

[0050] When the audio device 1 does not need to be clamped, the two clamping arms are in the initial position under the action of the elastic member. When the audio device 1 needs to be clamped, the audio device 1 is inserted between the two clamping arms, the two clamping arms are spread open, and under the action of the elastic force of the elastic member, the two clamping arms clamp and fix the audio device 1. After the audio device 1 is removed, the two clamping arms return to their initial positions under the action of the elastic force of the elastic member.

[0051] The detection device is used in the EMU high-voltage cable audio test in the following steps:

[0052] 1. Remove the end cap 31 from the last pipe section 21 of the insulating rod 2.

[0053] 2. According to the operation requirements, the required operating length of the insulating rod 2 is determined. When the required extended operating length L of the insulating rod 2 is greater than or equal to L0, the first pipe section 22 and the middle pipe section 23 of the insulating rod 2 are sequentially extended by a length of L-L0 to the required operating length.

[0054] 3. Use the fixing pin 26 to insert into the fixing pin hole 25 of the last pipe section 21 and the pin hole 24 on other pipe sections disposed inside the last pipe section 21 to lock the insulating rod 2 at the adjusted length.

[0055] 4. Install the fixing device 4 on the front end surface of the insulating rod 2, and then install the audio device 1 on the fixing device 4 to complete the installation of the audio device 1.

[0056] 5. Receive audio data from the cable.

[0057] 6. After the test, remove the audio device 1 from the insulating rod 2, retract the first pipe section 22 and the middle pipe section 23 into the last pipe section 21, and use the end cap 31 to thread the last pipe section 21, so that the first pipe section 22 and the middle pipe section 23 are completely sealed inside the last pipe section 21, so that the insulating rod 2 is locked at the shortest length.

[0058] The detection device provided by the utility model has the following advantages:

[0059] 1. The overall structure of the detection device is simple. The insulating rod 2 can be quickly adjusted to the required length of the operation by telescoping the insulating rod 2, so that the detection device can adapt to the required length of different operations. The operation is simple and convenient. Compared with the traditional detection method, the detection device no longer needs to use auxiliary working tools such as tape measures and tapes, and reduces the operation links such as on-site insulation rod length measurement and equipment gluing and fixing, which greatly avoids the influence of the operator's subjectivity on the detection result, which is conducive to improving the detection efficiency and detection accuracy.

[0060] 2. When the detection device is not in use, the locking member 3 can be used to lock the insulating rod 2 at the shortest length, so that the insulating rod 2 can be retracted and packaged, shortening the size of the insulating rod 2 for easy carrying, thereby realizing the portable function of the insulating rod 2.

[0061] 3. The detection device is provided with a fixing pin hole 25 and a fixing pin 26 at the top of the last tube section 21 of the telescopic insulating rod 2. The outer surfaces of the insulating rods 2 of the other telescopic sections except the last tube section 21 are provided with scale lines 28 and pin holes 24, so that during the high-voltage cable audio test operation, the insulating rods 2 of the required length can be quickly and conveniently prepared and fixed, which is conducive to further improving the detection efficiency.

[0062] 4. The fixing device 4 of the audio device 1 in the detection device is fixed to the front end surface of the insulating rod 2 through a detachable plug-in structure, which can realize rapid disassembly and assembly of the audio device 1, further improving the detection efficiency.

[0063] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A cable audio detection device, characterized in that: The invention comprises an audio device, a retractable insulating rod and a locking piece. The audio device is detachably mounted on the front end of the insulating rod through a fixing device. When the insulating rod is retracted to the shortest length, the locking piece is fixedly connected to the insulating rod to lock the insulating rod at the shortest length.

2. The cable audio detection device according to claim 1, characterized in that: The retractable insulating rod comprises a plurality of insulating tubes with gradually decreasing diameters which are fitted in sequence from outside to inside. When the plurality of tubes are fully extended, the plurality of tubes are fixed to each other through interference fit. The plurality of tubes are respectively a last tube section, a first tube section and a plurality of intermediate tube sections.

3. The cable audio detection device according to claim 2, characterized in that: The locking member is an end cap with external threads, and the last pipe section of the insulating rod has internal threads. After the first pipe section and the middle pipe section are fully retracted to the last pipe section, the end cap is connected to the last pipe section through threads, locking the first pipe section and the middle pipe section in the last pipe section; Alternatively, the locking member includes an end cap, and a locking assembly is correspondingly arranged on the end cap and the end pipe section, and the end cap is fixedly connected to the end pipe section by using the locking assembly.

4. The cable audio detection device according to claim 2, characterized in that: The first pipe section and the multiple intermediate pipe sections are both provided with a plurality of pin holes arranged along the length direction, and the last pipe section is provided with a fixing pin hole. The fixing pin hole is plugged into the corresponding pin hole on the first pipe section or the intermediate pipe section by a fixing pin to lock the insulating rod at any length.

5. The cable audio detection device according to claim 4, characterized in that: The multiple pin holes arranged on the first pipe section and the multiple intermediate pipe sections are arranged at equal intervals after being extended to the maximum length.

6. The cable audio detection device according to claim 4, characterized in that: The first pipe section and the multiple intermediate pipe sections are engraved with scales, the distance between the fixing pin hole of the last pipe section and the rear end surface of the insulating rod is L0, and the starting scale corresponding to the first pin hole of the first pipe section is L0.

7. The cable audio detection device according to any one of claims 1 to 6, characterized in that: The fixing device of the audio equipment is detachably fixedly connected to the front end surface of the insulating rod through a plug-in structure.

8. The cable audio detection device according to claim 7, characterized in that: The plug-in structure comprises an insert rod arranged on the fixing device and a plug hole arranged on the front end surface of the insulating rod. The insert rod is inserted into the plug hole to fix the audio device on the insulating rod.

9. The cable audio detection device according to claim 8, characterized in that: The fixing device of the audio device is provided with a clamping device for clamping and fixing the audio device on the fixing device.

10. The cable audio detection device according to claim 9, characterized in that: The clamping device includes a fixing part and a clamping part, the insertion rod and the clamping part are both mounted on the fixing part, the clamping part includes two clamping arms with variable clamping distance, the two clamping arms are connected by an elastic member, and the audio device is clamped and fixed by the two clamping arms.

Images