Cable tensile strength detection tool
By designing a cable tensile strength testing fixture, combined with a power meter and a clamp, the problem of the inability to detect cable conductivity in existing technologies has been solved. This enables real-time conductivity monitoring and longitudinal pressure testing during cable tensile testing, ensuring the accuracy of test data and the safety of the cable.
Patent Information
- Application Number
- CN202422649503.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing cable tensile testing equipment cannot effectively detect the conductivity of cables during the tensile process, and its data is inaccurate because it only tests the lateral tensile force of cables.
A cable tensile strength testing fixture was designed, comprising a track, a voltmeter, positive and negative terminal connectors, a clamp, and a pressure reducer. The voltmeter monitors the changes in cable conductivity in real time, and the clamp and pressure reducer simulate the longitudinal pressure on the cable, enabling comprehensive testing of the cable.
It enables real-time detection of conductivity changes during cable stretching, ensuring the accuracy of the detection data. It can handle cables of different thicknesses without damaging the cables.
Smart Images
Figure CN223551469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tensile strength testing technology, specifically to a cable tensile strength testing fixture. Background Technology
[0002] Cables are typically made up of several or groups of conductors (at least two conductors per group) twisted together. Each group of conductors is insulated from each other and is often twisted around a central core. The entire cable is covered with a highly insulating outer layer. Cables are characterized by internal conductivity and external insulation. During the cable production process, it is necessary to test the tensile strength of the cable. During the test, the two ends of the cable are stretched outwards, and the tensile strength is measured by the amount of stretching.
[0003] Current tensile testing equipment uses mechanical force to mechanically stretch both ends of the cable to test its tensile properties. However, since the test can only judge the cable's performance based on tensile deformation and breakage, it cannot test the cable's conductivity during the stretching process. This means that if the cable is not damaged during stretching, its conductivity cannot be effectively determined. Furthermore, during cable use, the cable may be subjected to longitudinal pressure, and testing only the transverse tensile force results in inaccurate test data. Therefore, we propose a cable tensile testing fixture. Utility Model Content
[0004] The purpose of this invention is to provide a cable tensile strength testing fixture to solve the problems mentioned in the background art, such as the inability to test the conductivity of the cable during the tensile process and the inaccurate test data caused by only testing the transverse tensile force of the cable when it is subjected to longitudinal pressure.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable tensile strength testing fixture, comprising a track, a measuring meter installed on the right side of the track, positive and negative terminal connecting bolts installed on the left and right sides of the upper surface of the track, connecting extension lines installed on the positive and negative terminal connecting bolts, a quick connector installed at the top of the other side of the connecting extension lines, a slider slidably mounted on the track, a clamp installed on the top surface of the slider, a grooved base installed in the middle of the inner cavity of the track, and a pressure device installed in the middle of the track.
[0006] Preferably, a rack is installed at the center of the front and rear sides of the track, a drive motor is installed on the bottom surface of the slider, and a gear is connected to the output shaft of the drive motor, with the gear corresponding to the rack.
[0007] Preferably, the clamp includes: a lower base, an upper cover, and a fastening bolt. The top of the left and right side walls of the lower base are each equipped with a pivot. The upper cover and the fastening bolt are respectively installed on the left and right sides of the lower base via the pivots. A slot is opened on the side wall of the upper cover, and the fastening bolt is snapped into the slot.
[0008] Preferably, the pressurizer includes: a gantry frame, a telescopic cylinder, and a protrusion. The telescopic cylinder is installed in the middle of the top surface of the inner cavity of the gantry frame, and the protrusion is installed on the telescopic end of the telescopic cylinder. The protrusion is installed correspondingly to the grooved base.
[0009] Preferably, the voltmeter is electrically connected to the positive and negative terminals, and the quick connector is a wire connector.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1) The device is equipped with a voltmeter and positive and negative connection plugs. The positive and negative connection plugs are electrically connected to the voltmeter. A connecting extension line is installed on the positive and negative connection plugs. A quick connector is installed at the other end of the connecting extension line. The quick connector is connected to the cable. The two ends of the cable are connected to the positive and negative terminals respectively. At this time, a circuit is formed with the cable. If a break occurs inside the cable during testing, it can be detected immediately. The device has a simple structure and is easy to use.
[0012] 2) A pressure device is installed in the middle of the track. After the tensile test, the protrusion is pressed down by the telescopic cylinder. The protrusion corresponds to the groove base. The cable is placed in the inner cavity of the groove base. The protrusion can apply pressure to the cable, thereby detecting the longitudinal pressure of the cable.
[0013] 3) The clamp on the device includes: a lower base, an upper cover and a fastening bolt. The upper cover has a slot on its side wall. The fastening bolt is installed in the slot. The upper cover is pressed down and tightened by adjusting the nut on the fastening bolt, thereby clamping the cable and accommodating cables of different thicknesses. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the drive motor and gear of this utility model;
[0016] Figure 3 This is a schematic diagram of the clamping device structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the pressure reducer structure of this utility model.
[0018] In the diagram: 1. Track; 2. Meter; 3. Positive and negative connection bolts; 4. Extension cable; 5. Quick connector; 6. Slider; 7. Clamp; 8. Rack; 9. Presser; 10. Groove base; 11. Drive motor; 12. Gear; 13. Lower base; 14. Top cover; 15. Fastening bolt; 16. Gantry frame; 17. Telescopic cylinder; 18. Protrusion. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.
[0021] Please see Figure 1-4 This utility model provides a technical solution: a cable tensile strength testing fixture, including a track 1, a measuring meter 2 installed on the right side of the track 1 (the measuring meter 2 is a JX-L200 cable fault tester), positive and negative connection bolts 3 installed on the left and right sides of the upper surface of the track 1, a connecting extension line 4 installed on the positive and negative connection bolts 3, and a quick connector 5 installed at the top of the other side of the connecting extension line 4, which is connected to the cable through the quick connector 5. The two ends of the cable are connected to the positive and negative terminals respectively, forming a circuit with the cable. During the test, if a break occurs inside the cable, it can be detected immediately. A slider 6 is slidably installed on the track 1, and a clamp 7 is installed on the top surface of the slider 6. The clamp 7 clamps the cable, and the slider 6 drives the clamp 7 to move and stretch. A grooved base 10 is installed in the middle of the inner cavity of the track 1, and a pressure device 9 is installed in the middle of the track 1. After the tensile test, the pressure device 9 applies downward pressure to the cable, thereby detecting the longitudinal pressure of the cable.
[0022] The track 1 has racks 8 installed in the middle of its front and rear sides. A drive motor 11 is installed on the bottom surface of the slider 6. A gear 12 is connected to the output shaft of the drive motor 11. The gear 12 is installed correspondingly to the rack 8. The drive motor 11 rotates in both directions, causing the gear 12 to move left and right on the rack 8. The drive motor 11 is a self-locking motor and will not move after stopping. The clamp 7 includes a lower base 13, an upper cover 14, and fastening bolts 15. A rotating shaft is installed at the top of each of the left and right side walls of the lower base 13. The upper cover 14 and fastening bolts 15 are respectively installed on the left and right sides of the lower base 13 via the rotating shafts. A slot is opened on the side wall of the upper cover 14, and the fastening bolts 15 are snapped into the slot. After the cable is placed in the inner cavity of the lower base 13… The top cover 14 is closed, and the fastening bolt 15 is snapped into the inner cavity of the slot. The top cover 14 is pressed down and tightened by adjusting the nut on the fastening bolt 15, thereby clamping the cable. It can accommodate cables of different thicknesses. The presser 9 includes: a gantry frame 16, a telescopic cylinder 17, and a protrusion 18. The telescopic cylinder 17 is installed in the middle of the top surface of the inner cavity of the gantry frame 16. The protrusion 18 is installed on the telescopic end of the telescopic cylinder 17. The protrusion 18 is installed corresponding to the groove base 10. The telescopic cylinder 17 drives the protrusion 18 to press down. The protrusion 18 is corresponding to the groove base 10. The cable is placed in the inner cavity of the groove base 10. The protrusion 18 can apply pressure to the cable. The multimeter 2 is electrically connected to the positive and negative terminal connection bolts 3. The quick connector 5 is a wire connector.
[0023] Working principle: During testing, only the tensile deformation and breakage of the cable can be used for judgment. This makes it impossible to test the conductivity of the cable during the stretching process. Therefore, without any damage during stretching, it is impossible to effectively determine its conductivity. The device is equipped with a track 1, with racks 8 mounted on the middle of both sides of the track 1. A drive motor 11 is mounted on the bottom of a slider 6, and a gear 12 is connected to the output shaft of the drive motor 11. A clamp 7 is mounted on the slider 6, holding the cable. The drive motor 11, through forward and reverse rotation, drives the gear 12 to move laterally on the rack 8, performing lateral movement. The tension clamp 7 is equipped with an adjustable fastening bolt 15. By adjusting the nut on the fastening bolt 15, the upper cover 14 is pressed down and tightened, thereby clamping the cable. It can accommodate cables of different thicknesses. The device is equipped with a voltmeter 2 and positive and negative connection bolts 3. The positive and negative connection bolts 3 and the voltmeter 2 are electrically connected. A connecting extension line 4 is installed on the positive and negative connection bolts 3. A quick connector 5 is installed at the top of the other end of the connecting extension line 4. The quick connector 5 is connected to the cable. The two ends of the cable are connected to the positive and negative terminals 3 respectively. At this time, a circuit is formed with the cable. If a break occurs inside the cable during testing, it can be detected immediately.
[0024] A pressure device 9 is installed in the middle of the track. After the tensile test, the telescopic cylinder 17 drives the protrusion 18 to press down. The protrusion 18 corresponds to the groove base 10. The cable is placed in the inner cavity of the groove base 10. The protrusion 18 can apply pressure to the cable, thereby detecting the longitudinal pressure of the cable.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cable tensile strength testing fixture, comprising a track (1), characterized in that: A voltmeter (2) is installed on the right side of the track (1). Positive and negative connection bolts (3) are installed on the left and right sides of the upper surface of the track (1). A connection extension line (4) is installed on the positive and negative connection bolts (3). A quick connector (5) is installed at the top of the other side of the connection extension line (4). A slider (6) is slidably installed on the track (1). A clamp (7) is installed on the top surface of the slider (6). A grooved base (10) is installed in the middle of the inner cavity of the track (1). A pressure device (9) is installed in the middle of the track (1).
2. The cable tensile strength testing fixture according to claim 1, characterized in that: A rack (8) is installed in the middle of the front and rear sides of the track (1), and a drive motor (11) is installed on the bottom surface of the slider (6). A gear (12) is connected to the output shaft of the drive motor (11), and the gear (12) is installed corresponding to the rack (8).
3. The cable tensile strength testing fixture according to claim 1, characterized in that: The clamp (7) includes a lower base (13), an upper cover (14), and a fastening bolt (15). The top of the left and right side walls of the lower base (13) are each equipped with a pivot. The upper cover (14) and the fastening bolt (15) are respectively installed on the left and right sides of the lower base (13) via the pivot. The side wall of the upper cover (14) is provided with a slot, and the fastening bolt (15) is snapped into the slot.
4. The cable tensile strength testing fixture according to claim 1, characterized in that: The presser (9) includes: a gantry (16), a telescopic cylinder (17), and a protrusion (18). The telescopic cylinder (17) is installed in the middle of the top surface of the inner cavity of the gantry (16). The protrusion (18) is installed on the telescopic end of the telescopic cylinder (17). The protrusion (18) is installed correspondingly to the groove base (10).
5. The cable tensile strength testing fixture according to claim 1, characterized in that: The voltmeter (2) is electrically connected to the positive and negative terminals (3), and the quick connector (5) is a wire connector.