Cable testing device
By designing a limiting shaft and conductive connectors for the cable testing device, rapid and accurate detection of cable resistance is achieved, solving the problems of detection uncertainty and high cost caused by manual stripping. It is suitable for resistance testing of thin cables.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSUSNGSHANG CABLE GROUP
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, cable testing requires manual stripping of the conductor for DC resistance testing, which leads to uncertainties in test results and high costs, especially when testing thin wires, which is prone to damage and breakage.
A cable testing device was designed, which clamps and fixes the cable with a limiting shaft and a retaining edge, and uses a conductive connector to abut against the end section of the cable for electrical connection, avoiding the stripping process and simplifying the testing process.
It improves testing efficiency and accuracy, reduces testing costs, is suitable for resistance testing of thin cables, and is especially suitable for single-person batch testing, avoiding conductor damage.
Smart Images
Figure CN224287010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable testing technology, and in particular to a cable testing device. Background Technology
[0002] The conductor is a key component for the functionality of wires and cables. As a critical indicator of product quality, the DC resistance of the conductor is an important technical parameter for evaluating wire and cable quality. During use, if the conductor's DC resistance exceeds national standard technical parameters, current flow through the conductor will increase losses in the line, reduce current carrying capacity, and exacerbate heating. This accelerates the aging of the insulation and sheathing materials covering the conductor, potentially leading to leakage, short circuits, and even fires, causing severe losses and endangering human lives.
[0003] To verify whether the DC resistance of the conductor meets the relevant requirements, the DC resistance of the conductor in wires and cables is tested after production. During testing, inspectors typically use specialized tools to strip the wire at specific points, exposing the conductor outside the sheath for easy connection to testing equipment. This manual stripping process can lead to many unstable results. For example, different inspectors may apply varying degrees of force and have different operating habits during manual stripping, causing different levels of damage to the conductor and resulting in loose strands, bending, etc., ultimately leading to uncertainty in the DC resistance test results. This is especially true when testing thin, soft copper wires (16-25mm); uneven force can easily damage or break the copper wire, inevitably causing extreme changes in DC resistance. Furthermore, this method requires one person to strip the wire and another to measure it for efficient batch testing, resulting in high testing costs.
[0004] Therefore, there is an urgent need for a cable testing device to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a cable testing device that can quickly and conveniently test the resistance of conductors.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] Cable testing equipment, including:
[0008] Base;
[0009] A side guard is fixedly installed on the base;
[0010] A limiting shaft is movably mounted on the base and can move in the direction of approaching and moving away from the edge member. The limiting shaft and the edge member are used to clamp and fix the cable to be tested, which has an end cross section.
[0011] A conductive connector is attached to the base and is capable of abutting against the end section and being electrically connected to the conductor in the cable under test.
[0012] Preferably, the cable testing device further includes a linear bearing, which is fixedly mounted on the base, and the limiting shaft passes through the linear bearing and is slidably connected to the base.
[0013] Preferably, the cable testing device further includes an operating member connected to the end of the limiting shaft away from the edge member and along the radial direction of the linear bearing, the operating member having a protrusion extending beyond the limiting shaft.
[0014] Preferably, the edge guard has an arc-shaped abutment surface, which is used to fit and abut against the outer circumferential surface of the cable to be tested.
[0015] Preferably, the conductive connector is movably mounted on one end of the limiting shaft near the stop member, and the conductive connector has an abutment end.
[0016] Along a first radial direction of the cable under test, the distance between the abutting end and the limiting shaft is adjustable, the first radial direction being parallel to the direction from the limiting shaft to the retaining member; and / or,
[0017] Along the second radial direction of the cable under test, the distance between the abutment end and the base is adjustable, and the second radial direction is perpendicular to the first radial direction.
[0018] Preferably, the cable testing device further includes an adjusting member connected to one end of the limiting shaft near the edge member. The adjusting member has a mounting groove opened along the second radial direction, and the conductive connector has a connecting end that is adjustablely inserted into the mounting groove along the second radial direction.
[0019] Preferably, the cable testing device includes at least two conductive connectors, the conductive connectors and the adjusting member are detachably connected, and along the first radial direction, the connection end to the abutment end of different conductive connectors have different spacing.
[0020] Preferably, the cable testing device further includes an elastic element connected to the limiting shaft or the adjusting member. The elastic element is configured such that when the limiting shaft or the adjusting member moves away from the edge member, the elastic element deforms more and applies an elastic force to the limiting shaft or the adjusting member, so that the limiting shaft or the adjusting member tends to move toward the edge member.
[0021] Preferably, the cable testing device further includes a limiting plate, the elastic element is a spring, the limiting plate is fixedly connected to the base, the spring is abutted between the limiting plate and the adjusting element, and the limiting shaft passes through the spring.
[0022] Preferably, the abutting end has a protruding structure, which includes at least one of wavy protrusions, concentric circle protrusions, and dot matrix protrusions. The protruding structure is at least disposed on the abutting end at a portion relative to the conductor, and the protruding structure can abut against and be electrically connected to the conductor.
[0023] The beneficial effects of this utility model are as follows: This cable testing device can easily fix the cable to be tested and connect it to the conductor therein for electrical connection. Since it is connected to the end section of the cable to be tested, the stripping process can be avoided. Only a simple cut is needed to meet the requirements of connecting the conductor, thereby greatly improving the testing efficiency, facilitating batch testing by a single person, reducing the testing cost, and avoiding damage to the conductor during the stripping process, thereby improving the accuracy of the test results. It is particularly suitable for resistance testing of thinner cables. Attached Figure Description
[0024] Figure 1 This is a perspective view of the cable testing device provided in this utility model;
[0025] Figure 2 This is a top view of the cable testing device provided in this utility model;
[0026] Figure 3 This is a front view of the cable testing device provided in this utility model;
[0027] Figure 4 This is a side view of the cable testing device provided in this utility model.
[0028] In the picture:
[0029] 1. Control component; 2. Linear bearing; 3. Base; 4. Limiting plate; 5. Adjusting component; 51. Mounting slot; 6. Cable to be tested; 7. Edge guard; 8. Conductive connector; 81. Abutment end; 82. Connecting end; 83. Connecting hole; 9. Elastic component; 10. Limiting shaft; 11. Bolt. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," and "abutting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0034] The following is based on the appendix Figures 1 to 4 This invention introduces the cable testing device provided by this utility model.
[0035] like Figure 1 , Figure 2As shown, in this embodiment, the cable testing device mainly includes a base 3, a retaining edge 7, a limiting shaft 10, and a conductive connector 8. The base 3 supports and connects the retaining edge 7, the limiting shaft 10, and the conductive connector 8. The retaining edge 7 is fixedly mounted on the base 3, and the limiting shaft 10 is movably mounted on the base 3, capable of moving towards and away from the retaining edge 7. When the limiting shaft 10 moves towards the retaining edge 7, reducing the distance between the limiting shaft 10 and the retaining edge 7, the cable 6 to be tested can be clamped and fixed between the limiting shaft 10 and the retaining edge 7.
[0036] The cable under test 6 is cut to form an end section. The conductive connector 8 is connected to the base 3 and can abut against the end section, thereby electrically connecting with the conductor in the cable under test 6. During testing, it is only necessary to clamp and fix the cable under test 6 between the limiting shaft 10 and the edge member 7, abut and electrically connect the end section and the conductive connector 8, electrically connect the conductive connector 8 to one electrode of the resistance measuring instrument, and electrically connect the other end of the cable under test 6 to the other electrode of the resistance measuring instrument, so that the resistance of the conductor can be easily measured.
[0037] This cable testing device can easily fix the cable 6 to be tested and connect it to the conductor therein for electrical connection. Since it connects to the end section of the cable 6, the stripping process can be avoided. It only needs to be cut to meet the requirements of connecting the conductor, which greatly improves the testing efficiency, facilitates batch testing by a single person, reduces the testing cost, and avoids damage to the conductor during the stripping process, thereby improving the accuracy of the test results. It is especially suitable for resistance testing of thinner cables.
[0038] Optionally, in this embodiment, the cable testing device further includes a linear bearing 2, which is fixedly mounted on the base 3. A limiting shaft 10 passes through the linear bearing 2 and is slidably connected to the base 3. When it is necessary to fix the cable 6 to be tested, simply place the cable 6 between the limiting shaft 10 and the retaining member 7, and then slide the limiting shaft 10 in a direction close to the cable 6 to be tested, thus clamping and fixing the cable 6 between the limiting shaft 10 and the retaining member 7. When it is necessary to remove the cable 6 to be tested, sliding the limiting shaft 10 in a direction away from the cable 6 to be tested allows the cable 6 to be easily removed.
[0039] Of course, in some embodiments, the limiting shaft 10 can also be rotatably mounted on the base 3. For example, the end of the limiting shaft 10 away from the edge member 7 is rotatably connected to the base 3. When the limiting shaft 10 rotates to a first preset angle (e.g., an angle horizontal to the base 3), the distance between the limiting shaft 10 and the edge member 7 decreases to a distance sufficient to clamp and fix the cable 6 to be tested. When the limiting shaft 10 rotates from the first preset angle to a second preset angle (e.g., an angle perpendicular to the base 3), the distance between the limiting shaft 10 and the edge member 7 increases, allowing the cable 6 to be tested to easily move out of the space between the limiting shaft 10 and the edge member 7. Optionally, when the limiting shaft 10 slides to clamp and fix the cable 6 to be tested, or when the limiting shaft 10 rotates to a preset first angle, the limiting shaft 10 can be temporarily fixed in a detachable manner using studs, clips, nylon buckles, etc., allowing the operator to free up one hand for faster testing and improving convenience during testing.
[0040] Preferably, in this embodiment, the cable testing device further includes an operating member 1. The operating member 1 is connected to the end of the limiting shaft 10 away from the stop member 7 and is located in the radial direction of the linear bearing 2. The operating member 1 has a protrusion that protrudes from the limiting shaft 10. The protrusion provides an optimal gripping position for the operator to slide the limiting shaft 10. It is installed on the limiting shaft 10 by bolts 11, facilitating operation of the limiting shaft 10 by pulling and pushing only, further improving the convenience of testing.
[0041] Optionally, in this embodiment, the edge guard 7 has an arc-shaped abutment surface, which is used to conform to and abut the outer peripheral surface of the cable to be tested 6, thereby reducing the squeezing damage to the cable to be tested 6 during clamping and fixing. Preferably, the distance between the arc-shaped abutment surface and the limiting shaft 10 is increased in the direction away from the base 3, thereby forming an opening that facilitates the insertion of the cable to be tested 6.
[0042] refer to Figure 1 , Figure 2 As shown, in some embodiments, the conductive connector 8 is movably mounted on one end of the limiting shaft 10 near the stop member 7. The conductive connector 8 has an abutment end 81 and, along the first radial direction of the cable 6 to be tested (refer to...), Figure 2 As shown on the X-axis, the distance between the contact end 81 and the limiting shaft 10 is adjustable, and the first radial direction is parallel to the direction from the limiting shaft 10 to the retaining member 7. Thus, when testing multiple cables of different diameters, the conductive connector 8 can move along the first radial direction, allowing the contact end 81 to contact the conductor portion of the cable under test with the maximum area, ensuring the accuracy of the measurement results.
[0043] In this embodiment, as Figure 3 , Figure 4As shown, along the second radial direction of the cable 6 under test (refer to...) Figure 3 As shown on the Y-axis, the distance between the abutment end 81 and the base 3 is adjustable, and the second radial direction is perpendicular to the first radial direction. Thus, when testing multiple cables with different diameters, the conductive connector 8 can move along the first radial direction, allowing the abutment end 81 to contact the conductor portion of the cable under test with the maximum area, ensuring the accuracy of the measurement results.
[0044] Of course, in some embodiments, the distance between the abutment end 81 and the limiting shaft 10 along the first radial direction can be adjusted, and the distance between the connecting end 82 and the base 3 along the second radial direction can be adjusted, thereby further facilitating the contact of the largest area of the abutment end 81 with the conductor portion in the cable to be tested 6, ensuring the accuracy of the measurement results.
[0045] Specifically, such as Figure 2 , Figure 3 As shown, in this embodiment, the cable testing device further includes an adjusting member 5. The adjusting member 5 is connected to one end of the limiting shaft 10 near the stop member 7. The adjusting member 5 has a mounting groove 51 opened along the second radial direction. The conductive connector 8 has a connecting end 82, which is adjustablely inserted into the mounting groove 51 along the second radial direction. The connecting end 82 can be adjusted in position within the mounting groove 51 along the second radial direction. When the position is accurately adjusted, the connecting end 82 can be fixed in the mounting groove 51 by means of threaded connectors, snap-fit connectors, etc., or by the force between the end section and the abutment end 81, so that the connecting end 82 is snapped and fixed in a specific position within the mounting groove 51. Optionally, the conductive connector 8 is provided with at least two connecting holes 83, which can be used to connect the electrodes of a resistance measuring instrument, thereby facilitating electrode fixation. Optionally, a roller is provided at the bottom of the adjusting member 5, which can roll against the base 3, thereby reducing the sliding resistance of the adjusting member 5.
[0046] In some embodiments, the cable testing apparatus includes at least two conductive connectors 8, and the distance between the connecting end 82 and the abutment end 81 of the different conductive connectors 8 is different along the first radial direction. The conductive connectors 8 and the adjusting member 5 are detachably connected, so that when adjustment is required along the first radial direction, the distance between the abutment end 81 and the limiting shaft 10 can be changed by replacing different conductive connectors 8 to meet the testing needs of cables of different diameters.
[0047] Preferably, in this embodiment, such as Figure 2 , Figure 3As shown, the cable testing device also includes an elastic element 9, which is connected to the limiting shaft 10 or the adjusting element 5. When the limiting shaft 10 or the adjusting element 5 moves away from the retaining edge 7, the elastic element 9 deforms more, and can apply an elastic force to the limiting shaft 10 or the adjusting element 5, so that the limiting shaft 10 or the adjusting element 5 tends to move towards the retaining edge 7. Exemplarily, in this embodiment, the elastic element 9 is a spring, and a limiting plate 4 is provided at one end of the linear bearing 2 near the adjusting element 5. The spring is abutted between the limiting plate 4 and the adjusting element 5, and the limiting shaft 10 passes through the spring. When the limiting shaft 10 slides towards the retaining edge 7, the spring can push and press the adjusting element 5 against the cable to be tested, thereby both fixing the cable to be tested between the adjusting element 5 and the retaining edge 7 and preventing excessive contact force that could damage the cable to be tested.
[0048] Optionally, in this embodiment, the abutment end 81 has a raised structure, which includes at least one of a wavy raised structure, a concentric circle raised structure, and a dot matrix raised structure. The raised structure is at least disposed on the abutment end 81 at a portion relative to the conductor. When the abutment end 81 abuts against the end section of the cable 6 to be tested, the raised structure can make more sufficient contact with the conductor, forming a more stable electrical connection, thereby further enhancing the accuracy of the test results.
[0049] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A cable testing device, characterized by, include: Base (3); Edge guard (7), which is fixedly installed on the base (3); A limiting shaft (10) is movably mounted on the base (3) and can move in the direction of approaching and moving away from the edge member (7). The limiting shaft (10) and the edge member (7) are used to clamp and fix the cable to be tested (6). The cable to be tested (6) has an end section. A conductive connector (8) is connected to the base (3) and can abut against the end section and be electrically connected to the conductor in the cable to be tested (6).
2. The cable testing device of claim 1, wherein, The cable testing device also includes a linear bearing (2), which is fixedly mounted on the base (3). The limiting shaft (10) passes through the linear bearing (2) and is slidably connected to the base (3).
3. The cable testing device of claim 2, wherein, The cable testing device further includes an operating element (1), which is connected to the end of the limiting shaft (10) away from the edge member (7) and along the radial direction of the linear bearing (2). The operating element (1) has a protrusion that protrudes from the limiting shaft (10).
4. The cable testing device according to claim 2, characterized in that, The edge guard (7) has an arc-shaped abutting surface, which is used to fit against the outer circumference of the cable to be tested (6).
5. The cable testing device of claim 1, wherein, The conductive connector (8) is movably mounted on one end of the limiting shaft (10) near the flange (7), and the conductive connector (8) has an abutment end (81). Along a first radial direction of the cable under test (6), the distance between the abutment end (81) and the limiting shaft (10) is adjustable, the first radial direction being parallel to the direction from the limiting shaft (10) to the retaining member (7); and / or, Along the second radial direction of the cable to be tested (6), the distance between the abutment end (81) and the base (3) is adjustable, and the second radial direction is perpendicular to the first radial direction.
6. The cable testing device of claim 5, wherein, The cable testing device further includes an adjusting member (5), which is connected to one end of the limiting shaft (10) near the edge member (7). The adjusting member (5) has a mounting groove (51) opened along the second radial direction. The conductive connector (8) has a connecting end (82), which is adjustablely inserted into the mounting groove (51) along the second radial direction.
7. The cable testing device of claim 6, wherein, The cable testing device includes at least two conductive connectors (8), the conductive connectors (8) and the adjusting member (5) are detachably connected, and along the first radial direction, the connection end (82) to the abutment end (81) of different conductive connectors (8) have different spacing.
8. The cable testing device of claim 6, wherein, The cable testing device further includes an elastic element (9), which is connected to the limiting shaft (10) or the adjusting element (5). The elastic element (9) is configured such that when the limiting shaft (10) or the adjusting element (5) moves away from the edge member (7), the elastic element (9) has a greater degree of deformation and can apply an elastic force to the limiting shaft (10) or the adjusting element (5) so that the limiting shaft (10) or the adjusting element (5) tends to move toward the edge member (7).
9. The cable testing device of claim 8, wherein, The cable testing device also includes a limiting plate (4), the elastic element (9) is a spring, the limiting plate (4) is fixedly connected to the base (3), the spring is abutted between the limiting plate (4) and the adjusting element (5), and the limiting shaft (10) passes through the spring.
10. The cable testing device according to claim 5, characterized in that, The abutting end (81) has a protruding structure, which includes at least one of a wave-shaped protrusion, a concentric circle protrusion, and a dot matrix protrusion. The protruding structure is at least disposed on the abutting end (81) at a position relative to the conductor, and the protruding structure can abut against and be electrically connected to the conductor.