CN217689250U - Cable insulation testing tool - Google Patents

Abstract

The utility model provides a cable insulation test tool, comprising: intermediate equipment; the intermediate equipment includes a plurality of connection terminals, a shorting row and a guide rail; the connection terminal is fixed on the guide rail, and the shorting connection The multi-core cable under test is connected with the butt plug of the multi-core cable under test; the first test end of the test equipment is butted with one lead wire of the butt plug of the multi-core cable under test; The remaining lead wires are respectively butted with the terminal; the second test end of the test equipment is butted with the wire of the last terminal to test the insulation of the multi-core cable under test. The test fixture can effectively improve the insulation test speed of the tested multi-core cable.

Description

A cable insulation test tool

technical field

The utility model relates to the field of cables, in particular to a tool for testing cable insulation.

Background technique

At present, there are two main methods for insulation testing of multi-core cables. One is to use integrated equipment for testing, which has the advantages of fast testing speed, saving manpower, and high accuracy. However, this testing method is expensive and is suitable for testing a large number of multi-core cables. The other is to use manual testing, which has the advantage of saving costs. However, the manual test method has a slow test speed and is greatly affected by human factors. Human operation errors will lead to large test errors, and it is suitable for testing a small number of multi-core cables.

In order to effectively increase the test speed of a small number of multi-core cables, reduce the work intensity of technicians, and reduce the impact of human errors on test results, it is particularly important to design a cable insulation test tool.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a cable insulation testing tool.

The utility model provides a cable insulation testing tool, comprising: intermediate equipment; the intermediate equipment includes a plurality of terminal blocks, short-circuit bars and guide rails; the terminal terminals are fixed on the guide rails, and row conduction; the multi-core cable under test is connected to the butt plug of the multi-core cable under test; The remaining lead wires are respectively connected to the connection terminals; the second test end of the test equipment is connected to the wire of the last connection terminal to test the insulation of the multi-core cable to be tested.

According to an embodiment of the present utility model, the test equipment is also included.

According to an embodiment of the present invention, it also includes the butt plug of the multi-core cable under test.

According to an embodiment of the present invention, a back plate for fixing the guide rail is also included.

According to an embodiment of the present invention, the intermediate device further includes a terminal marking strip, which is used for marking and distinguishing the connecting terminals.

According to an embodiment of the present invention, the lead-out wire of the multi-core cable under test is provided with a lead-out line mark, which is used to mark and distinguish the lead-out wire of the multi-core cable under test.

According to an embodiment of the present utility model, the terminal marking strip and the lead-out line marking are respectively provided with a first digital mark and a second digital mark in sequence; the connecting terminals are fixed on the guide rail in ascending order of the first digital marks Above; the remaining lead wires of the multi-core cable docking plug under test are respectively docked with the connecting terminals in sequence according to the ascending order of the second digital identification.

According to an embodiment of the present invention, the intermediate device includes a plurality of shorting bars; adjacent shorting bars are connected by wires.

According to an embodiment of the present invention, the backplane is provided with a plurality of intermediate devices that are not connected to each other.

According to an embodiment of the utility model, the testing equipment is a megger.

According to the cable insulation testing tool of the present invention, the core wires of the multi-core cable to be tested are distinguished and conducted through a plurality of terminals, and then the insulation of the tested multi-core cable is tested by the testing equipment, which can effectively improve the test performance of the multi-core cable under test. Speed, solves the problem of affecting the accuracy of test results due to human error.

It should be understood that the above general description and the following specific embodiments are only exemplary and explanatory, and cannot limit the scope of the present utility model.

Description of drawings

The following drawings are a part of the specification of the present invention, which illustrate exemplary embodiments of the present invention, and are used together with the description of the specification to illustrate the principle of the utility model.

Fig. 1 is a schematic diagram of a cable insulation testing tool according to an embodiment of the present invention.

Explanation of reference signs:

1-shorting bar, 2-terminal, 3-guide rail, 4-backboard, 5-test equipment, 6-butt plug of multi-core cable under test, 51-first test terminal, 52-second test terminal.

Detailed ways

The characteristics and exemplary embodiments of various aspects of the utility model will be described in detail below. In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. . It should be understood that the specific embodiments described here are only configured to explain the utility model and to illustrate the principle of the utility model, and are not configured to limit the utility model. Additionally, the mechanical components in the figures are not necessarily drawn to scale. For example, the size of some structural components or regions in the drawings may be exaggerated for other structural components or regions, so as to help the understanding of the embodiments of the present invention.

The orientation words appearing in the following description are all directions shown in the figure, and do not limit the specific structure of the embodiment of the present invention. In the description of the present utility model, it should be noted that unless otherwise specified, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integratively connected; either directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Furthermore, the terms "comprising", "comprising", "having" or any other variation thereof are intended to cover a non-exclusive inclusion such that a set of elements comprising a structure or component includes not only those elements, but also includes elements not expressly listed or inherently included. belong to structural parts and other mechanical parts on components. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the article or device comprising the element.

Spatially relative terms such as "below", "beneath", "under", "lower", "above", "on", "higher", etc. are used to facilitate description to explain the relative The orientation of two elements means that these terms are intended to encompass different orientations of the device in addition to orientations other than those shown in the figures. In addition, for example, "one element is on/under another element" may mean that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second" and the like are also used to describe various elements, regions, parts, etc., without particularly implying a sequence or sequence, and should not be construed as limiting. Similar terms refer to similar elements throughout the description.

It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

Fig. 1 is a schematic diagram of a cable insulation testing tool according to an embodiment of the present invention.

As shown in Figure 1, the utility model provides a cable insulation test tool, including: intermediate equipment. The intermediate equipment includes a plurality of terminal blocks 2 , shorting bars 1 and guide rails 3 . The connecting terminal 2 is fixed on the guide rail 3, and is conducted with the short-circuit bar 1. The multi-core cable to be tested is connected to the docking plug 6 of the multi-core cable under test, the first test end 51 of the test equipment 5 is docked with one lead-out line of the docking plug 6 of the multi-core cable under test, and the rest of the docking plug 6 of the multi-core cable under test The lead wires are connected to the connecting terminals 2 respectively, and the second test end 52 of the testing device 5 is connected to the wire of the last connecting terminal 2 to test the insulation of the multi-core cable to be tested.

As mentioned above, for the insulation test of a small number of multi-core cables, manual testing is usually used. The manual test method does not need to use high-cost integrated equipment to complete the insulation test, which saves costs. However, manual testing is slow. Moreover, once human error occurs, it is very likely to cause deviations in test results.

In this embodiment, firstly, the multi-core cable under test is connected to the mating plug 6 of the multi-core cable under test. Secondly, one lead-out line of the multi-core cable butt plug 6 to be tested is connected to the first test end 51 of the testing device 5 , and the remaining lead-out lines are connected to the connecting terminals on the guide rail 3 in turn. Finally, connect the wire of the last connection terminal with the second test terminal 52 of the test device 5 . Since the connecting terminal is connected through the shorting bar 1 , it is possible to test the insulation between the lead wire that is currently connected to the first test terminal 51 and other lead wires. Keep the second test terminal 52 of the test equipment 5 connected to the wire of the last terminal, remove a lead wire from the terminal in turn, and respectively connect and test with the first test terminal 51 of the test equipment 5 to test each terminal in turn. The insulation between the lead-out wire and other lead-out wires, so as to obtain the insulation of the multi-core cable under test.

Compared with the integrated equipment used for testing the insulation of a large number of multi-core cables, the test tooling of this embodiment has a lower cost, and is more suitable for testing the insulation of a small number of multi-core cables. In addition, the test tooling of this embodiment has a simple structure, is easy for technicians to operate, and has a high degree of maintainability, which can effectively reduce the testing time and reduce the work intensity of technicians. Moreover, it reduces the impact on the test results due to manual operation errors of technicians (such as false connection and missing connection between the test equipment and the core wire of the multi-core cable under test), and improves the accuracy of the insulation test.

This embodiment does not impose specific restrictions on the fixing method of the terminal and the guide rail, the connection method between the lead wire of the butt plug of the multi-core cable under test and the terminal, and the type of the terminal. For example, the connection between the terminal and the guide rail can be in the form of clamping, the connection between the lead-out wire of the multi-core cable and the terminal can be connected by a nut, and a terminal has two terminals that can be connected to the multi-core cable under test. The two lead wires of the docking plug are docked, etc. In addition, those skilled in the art should recognize that the number N of terminals in this embodiment is not less than the number M of the lead-out wires of the multi-core cable butt plug under test, so as to meet the requirements of connecting all lead-out wires of the multi-core cable butt plug under test with Terminal docking requirements.

It is worth noting that the words "first, second, and last" in this embodiment are just for convenience to illustrate the use of the test tool in this embodiment, and are not used to limit the operation sequence of using the tool.

As shown in FIG. 1 , according to an embodiment of the present invention, the testing tooling also includes testing equipment 5 in addition to intermediate equipment.

As shown in FIG. 1 , according to an embodiment of the present invention, the test tooling includes, in addition to intermediate equipment and testing equipment 5 , a multi-core cable butt plug 6 to be tested.

Those skilled in the art should realize that according to the characteristics of the multi-core cable to be tested, a suitable butt plug or socket of the multi-core cable to be tested can be selected, which is not specifically limited by the present invention.

As shown in FIG. 1 , according to an embodiment of the present invention, the test fixture, in addition to the intermediate equipment 4, the testing equipment 5 and the multi-core cable butt plug 6 under test, also includes a backboard for fixing the guide rail.

The testing tooling of the present utility model does not specifically limit the layout and direction of the guide rails on the backboard 4 .

As shown in FIG. 1 , according to an embodiment of the present invention, the intermediate equipment, in addition to a plurality of connection terminals, the shorting bar 1 and the guide rail 3 , also includes a terminal marking strip for marking and distinguishing the connection terminals.

In this embodiment, terminal marking strips are used to conveniently record the connection terminals whose insulation properties do not meet the requirements.

As shown in FIG. 1 , according to an embodiment of the present invention, the lead-out wire of the multi-core cable under test is provided with a lead-out mark, which is used to mark and distinguish the lead-out wire of the butt plug of the multi-core cable under test.

In this embodiment, by marking the lead-out wires, it is convenient to record the lead-out wires of the multi-wire cable under test whose insulation does not meet the requirements.

As shown in FIG. 1 , according to an embodiment of the present invention, the terminal marking strip and the lead wire marking are provided with a first digital mark and a second digital mark in sequence, respectively. The connecting terminals 2 are fixed on the guide rail 3 according to the ascending order of the first number identification. The remaining lead wires of the multi-core cable docking plug 6 under test are respectively docked with the connection terminals 2 in sequence according to the ascending order of the second number identification.

Specifically, firstly, terminal marking strips are provided for the wiring terminals and arranged and fixed on the guide rail 6 in sequence, and the first digital signs 001, 002, 003... are sequentially provided for the terminal marking strips from left to right. In the same way, the second digital identifiers 0001, 0002, 0003, . Next, connect the No. 0001 lead-out line of the multi-core cable docking plug 6 to be tested with the first test terminal 51 of the test equipment 5, connect the No. 0002 lead-out line with the No. 002 terminal, and connect the No. 0003 lead-out line with the No. 003 terminal... , and so on, until all the lead-out lines except No. 0001 are connected to the terminals. Finally, the lead wire of the last terminal N is connected to the second test terminal 52 of the test equipment 5. Since the terminals No. 002 to No. N are all in the Unicom state, that is, the tested multi-core cable except for the lead-out line No. 0001 is all connected. It is in the state of Unicom, so the insulation between the 0001 lead-out line and other lead-out lines can be tested. Remove the No. 0002, No. 0003... lead wires from the terminals in turn, respectively connect with the first test terminal 51 of the test device 5 for testing, and test the insulation between each lead wire and other lead wires in turn.

The test tool provided in this embodiment can use laser printing and other methods to mark the connecting terminal and the lead-out wire of the multi-core cable butt plug under test with numbers or letters. The utility model does not specifically limit the marking method, marking type and the like.

As shown in FIG. 1 , according to an embodiment of the present invention, the intermediate device includes a plurality of shorting bars, and the adjacent shorting bars are connected by wires.

Specifically, take a shorting bar with 10 terminals as a group as an example. Each shorting bar conducts 10 connection terminals, and conducts conduction between adjacent shorting bars through wires, so that all terminals are in a conducting state. In addition, the last connection terminal connected by each shorting bar is respectively provided with a suspended wire, that is, the connection terminals No. 010, 020, 030... are respectively provided with a suspended wire. During the test, if the No. 0001 lead-out line of the multi-core cable butt plug under test does not meet the insulation requirements, disconnect the wires between any two adjacent short-circuit bars, divide the terminal into two parts, and repeat the previous implementation. According to the test process of the example, find out which part has the range of lead-out wires that do not meet the insulation requirements. For example, disconnect the wires between the short-circuit bar connecting terminals 011 to 020 and the short-circuit bar connecting terminal 021 to 030, and test the insulation between the lead-out wires 0001 and 0002-0020 sex. If the insulation requirements are not met, continue to disassemble and test the shorting bar connected to terminals 001 to 020. At the same time, conduct a disassembly test on the shorting bar connecting 021 to N terminal. Find all the lead-out wires that do not meet the insulation requirements of the No. 0001 lead-out wires of the multi-core cable under test, and record the second digital identification of the lead-out wires.

In this embodiment, if it is tested that the lead-out line that does not meet the insulation requirements is located in a certain short-circuit bar, there are the following two ways to further determine the lead-out line. The first one is to remove all the lead wires that are docked on the shorting bar from the terminal block, keep the first test end 51 of the test equipment 5 connected to No. 0001 lead wires, and connect the second test end 52 of the test equipment 5 to the lead wire of No. 0001. The lead wires removed above are butted in turn to test the insulation between them and the 0001 lead wire. The second is to remove the shorting bar so that all the terminals connected to the shorting bar are no longer connected, keep the first test end 51 of the test equipment 5 connected to the lead wire No. 0001, and connect the second test end of the test equipment 5 52 and the wires of the above-mentioned terminal are butted in turn, and the insulation between it and the 0001 lead-out wire is tested.

As shown in FIG. 1 , according to an embodiment of the present invention, the backplane 4 is provided with a plurality of intermediate devices that are not connected to each other.

In view of the test requirements of multiple multi-core cables to be tested, the test tool provided in this embodiment can simplify the operation. Specifically, it is assumed that the backplane 4 is provided with two intermediate devices that are not connected to each other—the first row and the second row. As in the test process of the above-mentioned embodiment, the lead-out lines of the multi-core cable docking plug under test except the lead-out line No. 0001 are sequentially connected to the connecting terminals of the intermediate equipment in the first row. If the insulation between the No. 0001 lead-out wire and other lead-out wires meets the requirements, connect the No. 0001 lead-out wire with the No. 001 terminal of the intermediate equipment in the second row, remove the No. 0002 lead-out wire, and connect it with the test equipment 5. The first test terminal 51 is butted to test the insulation between the 0002 lead wire and other lead wires. If the insulation between the No. 0002 lead-out wire and other lead-out wires meets the requirements, connect the No. 0002 lead-out wire with the No. 002 terminal of the intermediate equipment in the second row, remove the No. 0003 lead-out wire, and connect it with the test equipment 5 The first test terminal 51 is butted to test the insulation between the No. 0003 lead wire and other lead wires.

Repeat the above test process, and test the insulation between each lead-out wire and other lead-out wires in turn, until the insulation of all core wires of the multi-core cable under test is tested. At this time, the lead wires of the multi-core cable docking plug 6 under test are all docked with the docking plugs of the intermediate equipment in the second row according to the ascending order of the first digital identification and the second digital identification. When the insulation of the second multi-core cable to be tested is to be tested, it is only necessary to remove the tested multi-core cable from the butt plug of the tested cable, and connect the second multi-core cable to be tested with the butt plug of the tested cable , the connection of the second multi-core cable to be tested can be completed according to the above test process. When testing the second multi-core cable to be tested, the lead-out wires of the butt plug of the multi-core cable to be tested can be connected to the terminals of the first row of intermediate equipment in sequence from the second row of intermediate equipment. Repeat the above operation process to complete the insulation test for all multi-core cables under test.

In this embodiment, since the intermediate equipment in the first row and the intermediate equipment in the second row are not connected to each other, when connecting the lead-out line No. 0002 with the first test terminal 51, it is to detect the lead-out line No. Insulation between lead wires. Repeated detection and subsequent repeated searches for lead-out wires that do not meet insulation requirements are avoided.

The test tool provided in this embodiment can further reduce the test time and optimize the test process.

In this embodiment, two intermediary devices that are not connected to each other are taken as an example, just to facilitate the description of the use process of the test tool in this embodiment, and not to limit the protection scope of the utility model.

According to an embodiment of the utility model, the test equipment is a megger.

Specifically, the red test lead and the black test lead of the megohmmeter are respectively butted with the lead-out wire of the multi-core cable butt plug and the wire of the terminal to test the insulation of the multi-core cable under test. For the specific test process, please refer to the above description, and will not repeat it here.

The test tool and test equipment provided in this embodiment can also be a shaker meter, etc., and this embodiment does not make specific restrictions on the difference and model of the test equipment.

The above-mentioned embodiments of the present invention can be combined with each other and have corresponding technical effects.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of the new protection.

Claims (10)

1. The utility model provides a cable insulation test frock which characterized in that includes: an intermediate device;

the intermediate equipment comprises a plurality of wiring terminals, a short-circuit bar and a guide rail;

the wiring terminal is fixed on the guide rail and is conducted by the short-circuit bar;

the tested multi-core cable is connected with a tested multi-core cable butt plug; a first test end of the test equipment is butted with an outgoing line of the tested multi-core cable butting plug; the residual outgoing lines of the tested multi-core cable butt-joint plug are respectively in butt joint with the wiring terminals; and the second testing end of the testing equipment is in butt joint with the wire of the last wiring terminal so as to test the insulation of the tested multi-core cable.

2. The test tool of claim 1, further comprising the test equipment.

3. The test tool of claim 2, further comprising the multi-core cable mating plug to be tested.

4. The test fixture of claim 3, further comprising a back plate for securing the rail.

5. The test tool of claim 4, wherein the intermediate device further comprises a terminal marking strip for marking and distinguishing the wiring terminals.

6. The test tool according to claim 5, wherein the outgoing line of the tested multi-core cable butt-joint plug is provided with an outgoing line mark for marking and distinguishing the outgoing line of the tested multi-core cable butt-joint plug.

7. The test tool according to claim 6, wherein the terminal mark strip and the outgoing line mark are respectively provided with a first digital mark and a second digital mark in sequence;

the wiring terminals are fixed on the guide rail in an ascending order according to the first digital identification;

and the residual outgoing lines of the tested multi-core cable butt-joint plug are sequentially butted with the wiring terminals according to the ascending sequence of the second digital identification.

8. The test tool according to claim 7, wherein the intermediate device comprises a plurality of the shorting bars; and adjacent short-circuit rows are communicated through a lead.

9. The test tool according to claim 8, wherein the back plate is provided with a plurality of intermediate devices which are not communicated with each other.

10. The test tool of any one of claims 1-9, wherein the test equipment is a megohmmeter.

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