Portable mobile DC resistance testing device

Abstract

The portable mobile direct-current resistance testing device is provided with a mobile testing base, a double-arm bridge and a cable clamp, the double-arm bridge is arranged on the mobile testing base, and the cable clamp is detachably arranged on the mobile testing base. The portable mobile direct-current resistance testing device is provided with the mobile testing base, so that the whole set of device can be moved at will, a finished cable to be tested can be tested in a whole disc in any area, a part of the finished cable does not need to be cut out to be specially used for detection, and waste of the finished cable can be effectively avoided; meanwhile, the possible phenomenon that the cable is large at two ends and small in the middle is avoided, and the detection accuracy is ensured; and meanwhile, the special clamp is arranged, so that the connection between the cable and the double-arm bridge is more effective, and the test value is more accurate.

Description

[Technical field]

[0002] The utility model relates to the field of cable inspection tools, in particular to a portable mobile direct current resistance testing device. [Background technology]

[0004] The DC resistance of a cable is a very important and intuitive indicator for testing its production quality and electrical performance. General cable conductor testing instruments are fixed in the laboratory and cannot be moved at will. During testing, testers need to cut a certain length of the tested cable to the laboratory for resistance testing, which is inconvenient and will cause waste of cable materials. Moreover, since the entire cable is not tested, the problem of "large ends and small middle" of some counterfeit and shoddy cables cannot be detected, and the problems of the entire cable cannot be discovered. Therefore, a test device that can test the DC resistance of a cable in real time on site is needed. [Contents of the utility model]

[0006] In view of the problem that the cable conductor detection instruments in the prior art mentioned above cannot detect the DC resistance of the cable in real time on site, the utility model provides a convenient mobile DC resistance testing device, which is provided with a movable testing base. The DC resistance testing device can directly test the DC resistance of the finished cable in any area, avoiding material waste and inaccurate results.

[0007] The utility model adopts the following technical solution to solve the technical problem: a portable mobile DC resistance testing device, provided with a mobile testing base, a double-arm electric bridge and a cable clamp, wherein the double-arm electric bridge is arranged on the mobile testing base, and the cable clamp is detachably arranged on the mobile testing base, and the cable clamp comprises an electrode potential clamp and a conductor end clamp, wherein the electrode potential clamp and the conductor end clamp are arranged in pairs respectively, and the conductor end clamp is arranged on the outer side of the electrode potential clamp, and the double-arm electric bridge is electrically connected to the cable clamp respectively.

[0008] The technical solution adopted by the utility model to solve its technical problems further includes:

[0009] In the portable mobile DC resistance testing device as described above, the mobile testing base is a special cart, which includes a testing plate for setting the double-arm bridge, electrode potential clamp and conductor end clamp, a cart handle arranged on one side of the testing plate and special wheels arranged under the plate.

[0010] In the portable mobile DC resistance testing device as described above, the cable installation position of the clamping device on the cable clamp is square.

[0011] In the portable mobile DC resistance testing device as described above, the clamping device of the cable clamp is two L-shaped clamping blocks arranged opposite to each other, and the L-shaped clamping blocks form a square cable installation position.

[0012] In the portable mobile DC resistance testing device as described above, the clamping device of the cable clamp is made of copper, and the clamping device is electrically connected to the double-arm bridge.

[0013] In the portable mobile DC resistance testing device as described above, the distance between each pair of electrode potential fixtures is set to be no less than 1m.

[0014] In the portable mobile DC resistance testing device as described above, a thermometer and a hygrometer are arranged on the mobile testing base.

[0015] The beneficial effects of the utility model are as follows: the portable mobile DC resistance test device of the utility model is provided with a mobile test base, so that the whole set of the device can be moved at will, and the finished cable to be tested can be tested as a whole in any area, without having to cut off a part of it for special testing, which can effectively avoid the waste of finished cables and eliminate the possible phenomenon of "big at both ends and small in the middle" of the cable, thereby ensuring the accuracy of the test; at the same time, a special clamp is provided, which can make the connection between the cable and the double-arm bridge more effective and the test value more accurate.

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

Brief Description of the Drawings

[0018] Figure 1 It is a structural schematic diagram of a portable mobile DC resistance testing device of the utility model. [Specific implementation method]

[0020] This embodiment is a preferred implementation mode of the utility model. Other embodiments whose principles and basic structures are the same or similar to those of this embodiment are within the protection scope of the utility model.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0024] The portable mobile DC resistance test device of the utility model refers to Figure 1 As shown, there are provided a mobile test base 1, a double-arm bridge 2 for testing the DC resistance of the cable, and a cable clamp 3 for fixing the cable. The double-arm bridge 2 is arranged on the mobile test base 1. In order to facilitate the testing of cables of different sizes, the cable clamp 3 is detachably arranged on the mobile test base 1, next to the double-arm bridge 2, and the double-arm bridge 2 is electrically connected to the cable clamp 3 respectively. In this embodiment, the cable clamp 3 includes an electrode potential clamp and a conductor end clamp. In the specific production implementation, other clamps can be added according to the measurement needs of the double-arm bridge 2 used. The electrode potential clamp and the conductor end clamp are respectively arranged in pairs. In this embodiment, each pair is provided. In order to meet the measurement needs of the double-arm bridge 2, the conductor end clamp is arranged on the outside of the electrode potential clamp.

[0025] In this embodiment, the mobile test base 1 is a special cart, which includes a test flat plate 11 for setting the double-arm bridge 2, electrode potential fixture and conductor terminal fixture, a cart handle 12 arranged on one side of the test flat plate 11 and special wheels 13 arranged under the flat plate. In specific production implementation, different forms of mobile devices that are easy to move can be used according to the use environment and the size requirements of the double-arm bridge 2 and cable fixture 3 used.

[0026] In order to ensure the transmission of power or electrical signals, the existing cable is composed of multiple metal wire cores with conductive ability and an insulating layer covering the core. When measuring the DC resistance, the insulating layer needs to be removed, which will cause the metal core to spread out, which will affect the measurement accuracy of the DC resistance. The existing practice is to clamp the disassembled cable with an arc-shaped clamp, but the arc-shaped clamp is inconvenient to adjust the size and cannot clamp the cable well. In this embodiment, in order to better clamp the cable, the cable installation position 32 of the clamping device on the cable clamp 3 is square, and the clamping device of the cable clamp 3 is two L-shaped clamps 31 arranged oppositely, and the L-shaped clamps 31 form a square cable installation position 32. When in use, the other L-shaped clamps 31 move toward each other, and one of the edges is staggered, so that the cable installation position 32 continues to shrink to match the size of the cable. In the specific production implementation, the clamping device of the cable clamp 3 can also be other forms that are convenient for clamping the cable, such as a square clamp with an opening on one side and a plate-shaped clamp that matches the size of the opening.

[0027] In order to ensure the accuracy of the DC resistance value, the clamping device of the cable clamp 3 is made of metal copper with low resistance. The clamping device is electrically connected to the double-arm bridge 2, and the line connecting the cable clamp 3 and the double-arm bridge 2 is as short as possible.

[0028] In order to ensure the accuracy of the measured DC resistance value and avoid mutual interference between the cable clamps 3, the distance between each pair of electrode potential clamps is set to be no less than 1m.

[0029] In order to obtain a more accurate DC resistance value, it is necessary to obtain the parameters of the measurement environment when measuring the resistance. Therefore, in the portable mobile DC resistance test device of this embodiment, a thermometer and a hygrometer are provided on the mobile test base 1.

[0030] When in use, the tester can move the portable mobile DC resistance test device of this embodiment to any position in the test site to test the cable according to the measurement needs, and directly measure the finished cable in the reel, without cutting the cable to cause loss of the cable, and at the same time eliminate the situation of "large at both ends and small in the middle".

[0031] The portable mobile DC resistance test device of the utility model is provided with a mobile test base, so that the whole device can be moved at will, and the finished cable to be tested can be tested as a whole in any area, without cutting off a part thereof for special testing, which can effectively avoid the waste of finished cables and eliminate the possible phenomenon of "large at both ends and small in the middle" of the cables, thereby ensuring the accuracy of the test; at the same time, a special clamp is provided, which can make the connection between the cable and the double-arm bridge more effective and the test value more accurate.

Claims

1. A portable mobile DC resistance test device, characterized in that: A mobile test base (1), a double-arm electric bridge (2) and a cable clamp (3) are provided, wherein the double-arm electric bridge (2) is arranged on the mobile test base (1), and the cable clamp (3) is detachably arranged on the mobile test base (1), and the cable clamp (3) comprises an electrode potential clamp and a conductor end clamp, wherein the electrode potential clamp and the conductor end clamp are arranged in pairs, respectively, and the conductor end clamp is arranged on the outside of the electrode potential clamp, and the double-arm electric bridge (2) is electrically connected to the cable clamp (3).

2. The portable mobile DC resistance test device according to claim 1, characterized in that: The mobile test base (1) is a special cart, which comprises a test plate (11) for setting the double-arm bridge (2), the electrode potential fixture and the conductor end fixture, a cart handle (12) arranged on one side of the test plate (11), and special wheels (13) arranged below the plate.

3. The portable mobile DC resistance tester according to claim 1, characterized in that: The cable installation position (32) of the clamping device on the cable clamp (3) is square.

4. The portable mobile DC resistance tester according to claim 1, characterized in that: The clamping device of the cable clamp (3) is two L-shaped clamping blocks (31) arranged opposite to each other, and the L-shaped clamping blocks (31) form a square cable installation position (32).

5. The portable mobile DC resistance tester according to claim 1, characterized in that: The clamping device of the cable clamp (3) is made of copper, and the clamping device is electrically connected to the double-arm bridge (2).

6. The portable mobile DC resistance tester according to claim 1, characterized in that: The distance between each pair of electrode potential fixtures is set to be no less than 1m.

7. The portable mobile DC resistance test device according to claim 1, characterized in that: The mobile test base (1) is provided with a thermometer and a hygrometer.

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