Cable load testing machine for power strip production

Abstract

The invention relates to the technical field of cable detection, in particular to a cable load testing machine for power strip production, which comprises a load testing machine body, a testing connector body is fixedly connected to the outer wall of the front surface of the load testing machine body, and a mounting seat is fixedly connected to the outer wall of the front surface of the load testing machine body below the testing connector body. The outer wall of the top of the mounting seat is in movable contact with an integral pressing plate; the device has the beneficial effects that an upper pressing shell can drive an arc-shaped clamping plate to move downwards along with the upper pressing shell through downward movement of a sliding plate, so that the arc-shaped clamping plate fixes a power strip cable, and when the power strip cables of the same size are tested, only the arc-shaped clamping plate needs to be adjusted during primary use, so that the test efficiency is improved; the problem that the distance between the arc-shaped clamping plate and the power strip cable needs to be repeatedly adjusted when the power strip cable of the same size is tested is avoided, the time for fixing the power strip cable is correspondingly saved, and therefore the efficiency for fixing the power strip cable is improved.

Description

Technical Field

[0001] The invention relates to the field of cable detection, and in particular to a cable load testing machine for plug strip production. Background Art

[0002] The cable load tester for extension strip production performs load tests on extension strip cables by simulating the load conditions in actual use. During the test, the tester applies a certain current and voltage to the cable to detect the performance of the cable under load, such as temperature, resistance, current stability, etc.

[0003] When preparing to test the extension cable, install the extension cable on the test connector, connect the control system and the load device, set the test parameters, current, voltage range, test time, etc. in the control system according to the test requirements, start the control system, and begin the test. The load device will apply the set current and voltage to the extension cable, and the data acquisition system will collect, process and store the test data in real time. After the test, analyze the collected data to evaluate the load capacity of the extension cable.

[0004] During the test, if the test connector is not firmly fixed to the cable, the cable may shake due to uneven force or external factors. This shaking may interfere with the stability of the test data, thus causing deviations in the test results. Summary of the invention

[0005] The object of the present invention is to provide a cable load testing machine for power strip production to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: the cable load testing machine comprises: a load testing machine body, the outer wall of the front face of the load testing machine body is fixedly connected to a test connector body, the outer wall of the front face of the load testing machine body is located below the test connector body and is fixedly connected to a mounting seat, the outer wall of the top of the mounting seat is movably in contact with an integral pressure plate, a circular hole is provided in the middle of the outer wall of the top of the mounting seat, a threaded rod is rotatably connected inside the circular hole, the outer wall of the top of the mounting seat is fixedly connected to a guide rod, the outer wall of the threaded rod is threadedly connected to the inside of the integral pressure plate, the outer walls of the two guide rods are slidably connected to the inside of the integral pressure plate, the outer walls on both sides of the mounting seat are fixedly connected to a U-shaped frame, the insides of the two U-shaped frames are fixedly connected to a rotating rod, the outer wall of the rotating rod is rotatably connected to a locking plate, and the inner wall of the top of the locking plate is movably in contact with the outer wall of the integral pressure plate.

[0007] Preferably, a plurality of cavities 2 are provided inside the integral pressure plate, and an upper pressure shell is slidably connected inside the plurality of cavities 2. Sliding grooves are provided on the outer walls on both sides of the cavities 2. Slide plates are fixedly connected to the outer walls on both sides of the upper pressure shell, and an arc-shaped clamping plate is fixedly connected to the outer wall of the bottom of the upper pressure shell.

[0008] Preferably, the outer wall of the slide plate is slidably connected to the inside of the slide groove, the outer wall of the bottom of the slide plate is fixedly connected with an elastic block, and the outer wall of the bottom of the elastic block is fixedly connected to the lower part of the inside of the slide groove.

[0009] Preferably, a limiting raised plate is fixedly connected to an outer wall on one side of the interior of the second cavity, a third cavity is provided inside the upper pressure shell, and a mounting plate is slidably connected inside the third cavity.

[0010] Preferably, the outer wall on one side of the mounting plate is fixedly connected to a movable plate, the outer wall of the movable plate is movably plugged into the interior of the limiting protrusion plate, the outer wall on the other side of the mounting plate is fixedly connected to a push spring, and the outer wall at one end of the push spring is fixedly connected to the interior of cavity three.

[0011] Preferably, a strip groove is movably opened on the outer wall of the front side of the upper pressure shell, a push plate is slidably connected inside the two strip grooves, and the outer walls of the bottom of the two push plates are fixedly connected to the same semicircular bending plate, and a bending hole is movably inserted into the outer wall of the semicircular bending plate.

[0012] Preferably, the two pushing plates are internally slidably connected with an insert plate, the outer wall of the insert plate is movably inserted into the gap between the two movable plates, the outer wall on one side of the two insert plates is fixedly connected to the same connecting plate, the inner part of one side of the connecting plate is fixedly connected with a return spring, and the outer wall of one end of the return spring is fixedly connected to the outer wall on one side of the pushing plate.

[0013] Preferably, a storage battery is arranged inside the upper pressure shell, a heating plate is fixedly connected to the inside of the arc-shaped clamping plate, and a control switch is connected to the outer wall of the top of the upper pressure shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a cable load testing machine for plug-in strip production. Through the downward movement of the slide plate, the upper pressure shell can drive the arc clamping plate to move downward, so that the arc clamping plate fixes the plug-in strip cable. When testing the plug-in strip cables of the same size, it is only necessary to adjust the arc clamping plate at the first use, thereby avoiding the need to repeatedly adjust the distance between the arc clamping plate and the plug-in strip cable when testing the plug-in strip cables of the same size, and correspondingly saving the time for fixing the plug-in strip cables, thereby improving the efficiency of fixing the plug-in strip cables. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a schematic diagram of the overall pressing plate structure of the present invention; Figure 4 This is a schematic diagram of the mounting seat structure of the present invention; Figure 5 For the present invention Figure 3 A is an enlarged schematic diagram of the structure at location A; Figure 6 It is a schematic diagram of the cross-sectional view of the top of the integral pressing plate of the present invention; Figure 7 It is a schematic diagram of the structure of the side cross-sectional view of the integral pressing plate of the present invention; Figure 8 This is a schematic diagram of the internal structure of the upper pressure shell of the present invention; Fig. 9 This is a schematic diagram of the structure of the curved plate of the present invention; Fig.10 This is a schematic diagram of the structure of the mounting plate of the present invention; Fig.11 This is a schematic diagram of the structure of the semicircular bent plate of the present invention; Fig.12 It is a schematic diagram of the upper pressure shell structure of the present invention.

[0015] In the figure: 1. Load test machine body; 11. Test connector body; 2. Mounting seat; 3. Integral pressure plate; 4. Threaded rod; 41. Guide rod; 42. U-shaped frame; 43. Locking plate; 44. Rotating rod; 5. Upper pressure shell; 51. Slide plate; 52. Elastic block; 53. Slide groove; 54. Arc clamping plate; 55. Cavity II; 6. Push plate; 61. Semicircular bending plate; 62. Bending hole; 63. Insert plate; 64. Connecting plate; 65. Strip groove; 66. Reset spring; 7. Handle; 71. Moving plate; 72. Cavity I; 73. Limiting protrusion plate; 74. Push spring; 75. Mounting plate; 76. L-shaped rod; 77. Telescopic block; 8. Heating plate; 81. Battery; 82. Control switch. DETAILED DESCRIPTION

[0016] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] For example, see Figure 1 - Fig.12 The present invention provides a technical solution of a cable load testing machine for power strip production: the cable load testing machine comprises: a load testing machine body 1, a test connector body 11 is fixedly connected to the outer wall of the front side of the load testing machine body 1, a mounting seat 2 is fixedly connected to the outer wall of the front side of the load testing machine body 1 below the test connector body 11, the outer wall of the top of the mounting seat 2 is movably in contact with an integral pressure plate 3, a circular hole is provided in the middle of the outer wall of the top of the mounting seat 2, a threaded rod 4 is rotatably connected inside the circular hole, a guide rod 41 is fixedly connected to the outer wall of the top of the mounting seat 2, the outer wall of the threaded rod 4 is threadedly connected to the inner part of the integral pressure plate 3, the outer walls of the two guide rods 41 are slidably connected to the inner part of the integral pressure plate 3, the outer walls on both sides of the mounting seat 2 are fixedly connected to U-shaped frames 42, the inner parts of the two U-shaped frames 42 are fixedly connected to rotating rods 44, the outer wall of the rotating rod 44 is rotatably connected to a locking plate 43, and the inner wall of the top of the locking plate 43 is in movably contact with the outer wall of the integral pressure plate 3.

[0018] After the plug strip cable is fixed to the mounting base 2 through the integral pressure plate 3, the operator can rotate the locking plate 43 on the U-shaped frame 42 so that the locking plate 43 is in contact and fixed with the top of the integral pressure plate 3, thereby increasing the stability of the integral pressure plate 3 fixed to the mounting base 2, avoiding the integral pressure plate 3 from moving on the mounting base 2 during operation, causing the integral pressure plate 3 to loosen the fixation of the plug strip cable, and correspondingly increasing the stability of the integral pressure plate 3, thereby improving the stability of the integral pressure plate 3 fixing the plug strip cable.

[0019] Embodiment 2. On the basis of embodiment 1, a plurality of cavities 55 are provided inside the integral pressure plate 3, and the interior of the plurality of cavities 55 is slidably connected with the upper pressure shell 5, and the outer walls on both sides of the cavities 55 are provided with sliding grooves 53, and the outer walls on both sides of the upper pressure shell 5 are fixedly connected with slide plates 51, and the outer wall of the bottom of the upper pressure shell 5 is fixedly connected with an arc-shaped clamping plate 54, and the outer wall of the slide plate 51 is slidably connected to the interior of the sliding groove 53, and the outer wall of the bottom of the slide plate 51 is fixedly connected with an elastic block 52, and the outer wall of the bottom of the elastic block 52 is fixedly connected to the lower part of the interior of the sliding groove 53.

[0020] By releasing the fixation between the movable plate 71 and the limiting protrusion plate 73, the slide plate 51 can be pulled downward by the action of the elastic block 52. The downward movement of the slide plate 51 can drive the arc clamping plate 54 to move downward accordingly, so that the arc clamping plate 54 fixes the patch cable. When testing the patch cable of the same size, it is only necessary to adjust the arc clamping plate 54 at the first use, avoiding the need to repeatedly adjust the distance between the arc clamping plate 54 and the patch cable when testing the patch cable of the same size, thereby saving the time for fixing the patch cable accordingly, thereby improving the efficiency of fixing the patch cable.

[0021] Embodiment three, on the basis of embodiment two, the outer wall on one side of the interior of cavity two 55 is fixedly connected to the limiting protrusion plate 73, the interior of the upper pressure shell 5 is provided with a cavity three, the interior of cavity three is slidably connected to the mounting plate 75, the outer wall on one side of the mounting plate 75 is fixedly connected to the movable plate 71, the outer wall of the movable plate 71 is movably plugged into the interior of the limiting protrusion plate 73, the outer wall on the other side of the mounting plate 75 is fixedly connected to the push spring 74, and the outer wall at one end of the push spring 74 is fixedly connected to the interior of cavity three.

[0022] The push spring 74 pushes the movable plate 71 again to be inserted into the interior of the limiting protrusion plate 73, thereby completing the limitation of the upper pressure shell 5, avoiding the upper pressure shell 5 from floating up and down due to the external force when pushing the arc clamping plate 54 to fix the extension cable, and correspondingly increasing the fixing effect of the arc clamping plate 54, further increasing the downward pulling force of the elastic block 52 on the slide plate 51, and preventing the elastic block 52 from unnecessary movement during operation.

[0023] Embodiment 4, on the basis of embodiment 2, the outer wall of the front side of the upper pressure shell 5 is movably opened with a strip groove 65, the inner parts of the two strip grooves 65 are slidably connected with a push plate 6, the outer walls of the bottom parts of the two push plates 6 are fixedly connected with the same semicircular bending plate 61, the outer walls of the semicircular bending plate 61 are movably inserted with a bending hole 62, the inner parts of the two push plates 6 are slidably connected with an insert plate 63, the outer walls of the insert plate 63 are movably inserted with the gap between the two movable plates 71, the outer walls of one side of the two insert plates 63 are fixedly connected with the same connecting plate 64, the inner part of one side of the connecting plate 64 is fixedly connected with a reset spring 66, and the outer wall of one end of the reset spring 66 is fixedly connected to the outer wall of one side of the push plate 6.

[0024] By pushing the plug plate 63 to the gap between the two movable plates 71 again, the semicircular bending plate 61 can maintain the state of bending the patch cable. The bending of the patch cable simulates the bending and folding conditions that may be encountered in actual use, which helps to evaluate the load capacity and durability of the patch cable in a bent state. At the same time, through the bending of the patch cable, the load performance of the patch cable under different spatial layouts can be tested to ensure that it can reliably transmit current in actual applications.

[0025] Embodiment 5, on the basis of embodiment 2, a battery 81 is arranged inside the upper pressure shell 5, a heating plate 8 is fixedly connected inside the arc clamping plate 54, and a control switch 82 is connected to the outer wall of the top of the upper pressure shell 5.

[0026] The extension cable is heated by the heating sheet 8. By heating the extension cable, its aging process can be accelerated, so that the performance changes of the cable after long-term use can be observed in a shorter period of time, which helps to improve the efficiency and accuracy of load testing and screen out potential quality problems more quickly.

[0027] Embodiment 6, on the basis of embodiment 3, a handle 7 is fixedly connected to the outer wall at the top of the upper pressure shell 5, a cavity 72 is formed on the outer wall at the top of the handle 7, a telescopic block 77 is fixedly connected to one side inside the cavity 72, an L-shaped rod 76 is fixedly connected to the upper part of the outer wall on one side of the mounting plate 75, and the outer wall on one side of the L-shaped rod 76 is in movable contact with the outer wall on one side of the telescopic block 77.

[0028] With the cooperation of the telescopic block 77 and the L-shaped rod 76, the telescopic block 77 blocks the L-shaped rod 76, thereby preventing the L-shaped rod 76 from driving the mounting plate 75 to move inside the cavity 1 72, further increasing the stability of the mounting plate 75 in the cavity 3.

[0029] In actual use, first, when performing a load test on a patch cord of the same model, the multiple arc-shaped clamping plates 54 on the integral pressure plate 3 are first adjusted to the same size as the patch cord, so that the integral pressure plate 3 drives the multiple arc-shaped clamping plates 54 to fix the patch cord. When adjusting the arc-shaped clamping plates 54, the operator first connects the patch cord to the test connector body 11, and then closes the integral pressure plate 3 and the mounting seat 2. The operator then presses the telescopic block 77 into the interior of the handle 7 to release the fixation of the telescopic block 77 on the L-shaped rod 76. At this time, the groove on the L-shaped rod 76 is pulled, and when the L-shaped rod 76 is subjected to force to move inside the cavity 72, the mounting plate 75 can drive the moving The movable plate 71 leaves the interior of the limiting protrusion plate 73, thereby releasing the fixation between the movable plate 71 and the limiting protrusion plate 73. At this time, under the action of the elastic block 52, the slide plate 51 can be pulled downward. Through the downward movement of the slide plate 51, the upper pressure shell 5 can drive the arc-shaped clamping plate 54 to move downward accordingly, so that the arc-shaped clamping plate 54 fixes the patch cable. When testing the patch cables of the same size, it is only necessary to adjust the arc-shaped clamping plate 54 at the first use, avoiding the need to repeatedly adjust the distance between the arc-shaped clamping plate 54 and the patch cable when testing the patch cables of the same size, thereby saving the time for fixing the patch cables accordingly, thereby improving the efficiency of fixing the patch cables.

[0030] After the adjustment of the arc clamping plate 54 is completed, the movable plate 71 can be pushed again to be inserted into the interior of the limiting protrusion plate 73 under the action of the pushing spring 74, thereby completing the limitation of the upper pressure shell 5, avoiding the upper pressure shell 5 to push the arc clamping plate 54 to fix the plug strip cable due to the action of external force, and correspondingly increasing the fixing effect of the arc clamping plate 54, further increasing the downward pulling force of the elastic block 52 on the slide plate 51, and preventing the elastic block 52 from unnecessary movement during operation.

[0031] After the arc clamping plate 54 is adjusted, the patch cable is passed through the arc groove of the mounting seat 2 and connected to the test connector body 11. In order to prevent the patch cable from being unstable between the test connector body 11 and the test connector body 11, the operator rotates the threaded rod 4 and uses the threaded connection between the threaded rod 4 and the integral pressure plate 3. When the threaded rod 4 is rotated, the integral pressure plate 3 can slide downward on the guide rod 41. Then, through the setting of the guide rod 41, it is avoided that the integral pressure plate 3 is offset and cannot overlap with the mounting seat 2 when moving downward, and the stability of the overlap between the integral pressure plate 3 and the mounting seat 2 is correspondingly increased. After the integral pressure plate 3 is fully fitted with the mounting seat 2, the arc clamping plate 54 can be used to fix the patch cable, and the patch cable is prevented from shaking due to external factors, which makes the contact between the patch cable and the test connector body 11 unstable. The contact between the test connector body 11 and the patch cable is correspondingly increased, thereby reducing the stability of the cable test data due to shaking and increasing the accuracy of the test results.

[0032] After the plug strip cable is fixed to the mounting base 2 through the integral pressure plate 3, the operator can rotate the locking plate 43 on the U-shaped frame 42 so that the locking plate 43 is in contact and fixed with the top of the integral pressure plate 3, thereby increasing the stability of the integral pressure plate 3 fixed to the mounting base 2, avoiding the integral pressure plate 3 from moving on the mounting base 2 during operation, causing the integral pressure plate 3 to loosen the fixation of the plug strip cable, and correspondingly increasing the stability of the integral pressure plate 3, thereby improving the stability of the integral pressure plate 3 fixing the plug strip cable.

[0033] It should be noted that when multiple extension cables have passed the test, the locking plate 43 can be released from the fixation of the integral pressure plate 3, and the threaded rod 4 can be rotated to drive the integral pressure plate 3 to move upward on the guide rod 41, so that the integral pressure plate 3 drives multiple arc-shaped clamping plates 54 to release the fixation of the extension cables at the same time.

[0034] After the cable is fixed, the operator pulls the connecting plate 64, and then through the movement of the connecting plate 64, the plug plate 63 can be driven to move out of the gap between the two movable plates 71, thereby releasing the fixing of the plug plate 63 to the push plate 6. At this time, the plug plate 63 is pressed downward, and the push plate 6 can be driven to move by the plug plate 63 being forced downward. At this time, the push plate 6 drives the semicircular bending plate 61 to move downward inside the strip groove 65. When the semicircular bending plate 61 moves downward, pressure is generated on the patch cable, so that the patch cable is U-bent inside the bending hole 62. After the patch cable is bent, the operator loosens the connecting plate 64 and, under the action of the reset spring 66, pushes the plug plate 63 again to the gap between the two movable plates 71, so that the semicircular bending plate 61 can maintain the state of bending the patch cable. The bending of the patch cable simulates the bending and folding conditions that may be encountered in actual use, which helps to evaluate the load capacity and durability of the patch cable in a bent state. At the same time, through the bending of the patch cable, the load performance of the patch cable under different spatial layouts can be tested to ensure that it can reliably transmit current in actual applications.

[0035] When the arc-shaped clamping plate 54 is in contact with the extension cable, the heating plate 8 is connected to the positive and negative electrodes of the battery 81 through wires to form a complete circuit. When the control switch 82 is pressed to control the operation of the battery 81, the current can be transmitted to the heating plate 8, so that the heating plate 8 heats the extension cable. By heating the extension cable, its aging process can be accelerated, so that the performance changes of the cable after long-term use can be observed in a shorter time, which helps to improve the efficiency and accuracy of load testing and screen out potential quality problems more quickly.

[0036] During the detection of the patch cable, when one of the patch cables fails, the operator can release the limit between the corresponding movable plate 71 and the limiting protrusion plate 73, and then pull the handle 7 upward. Then, through the movement of the handle 7, the upper pressure shell 5 can simultaneously drive the arc clamping plate 54 and the pushing plate 6 to move upward. The upward movement of the arc clamping plate 54 can be used to release the fixation of the arc clamping plate 54 and the patch cable, and the semicircular bending plate 61 can be released from the pressure on the patch cable, so that the fixation of the arc clamping plate 54 and the semicircular bending plate 61 to the patch cable can be simultaneously released. At this time, the operator pulls out the patch cable from the test connector body 11, avoiding the need to release the fixation of the entire pressure plate 3 to the patch cable when one of the patch cables fails, thereby saving time for troubleshooting the faulty cable.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable load tester for power strip production, characterized by: The cable load tester comprises: a load tester body (1), a test connector body (11) being fixedly connected to the front outer wall of the load tester body (1), a mounting seat (2) being fixedly connected to the front outer wall of the load tester body (1) below the test connector body (11), a top outer wall of the mounting seat (2) being movably in contact with an integral pressure plate (3), a circular hole being provided in the middle of the top outer wall of the mounting seat (2), a threaded rod (4) being rotatably connected to the inside of the circular hole, and a top of the mounting seat (2) The outer wall of the threaded rod (4) is fixedly connected to a guide rod (41), the outer wall of the threaded rod (4) is threadedly connected to the inner part of the integral pressure plate (3), the outer walls of the two guide rods (41) are slidably connected to the inner part of the integral pressure plate (3), the outer walls of the two sides of the mounting seat (2) are fixedly connected to U-shaped frames (42), the inner parts of the two U-shaped frames (42) are fixedly connected to rotating rods (44), the outer walls of the rotating rods (44) are rotatably connected to locking plates (43), and the inner wall of the top of the locking plates (43) is in movably contact with the outer wall of the integral pressure plate (3).

2. A cable load testing machine for power strip production according to claim 1, characterized in that: The integral pressure plate (3) has a plurality of cavities (55) formed therein, the plurality of cavities (55) being slidably connected to an upper pressure shell (5), outer walls on both sides of the cavities (55) having sliding grooves (53), outer walls on both sides of the upper pressure shell (5) being fixedly connected to slide plates (51), and the outer wall at the bottom of the upper pressure shell (5) being fixedly connected to an arc-shaped clamping plate (54).

3. A cable load testing machine for power strip production according to claim 2, characterized in that: The outer wall of the slide plate (51) is slidably connected to the inside of the slide groove (53), the outer wall of the bottom of the slide plate (51) is fixedly connected to an elastic block (52), and the outer wall of the bottom of the elastic block (52) is fixedly connected to the lower part of the inside of the slide groove (53).

4. A cable load testing machine for power strip production according to claim 2, characterized in that: The outer wall of one side of the interior of the second cavity (55) is fixedly connected to a limiting raised plate (73), the interior of the upper pressure shell (5) is provided with a third cavity, and the interior of the third cavity is slidably connected to a mounting plate (75).

5. A cable load testing machine for power strip production according to claim 4, characterized in that: The outer wall of one side of the mounting plate (75) is fixedly connected to a movable plate (71), the outer wall of the movable plate (71) is movably plugged into the interior of the limiting protrusion plate (73), the outer wall of the other side of the mounting plate (75) is fixedly connected to a push spring (74), and the outer wall of one end of the push spring (74) is fixedly connected to the interior of cavity three.

6. A cable load testing machine for power strip production according to claim 2, characterized in that: The outer wall of the front side of the upper pressure shell (5) is movably provided with a strip groove (65), the insides of the two strip grooves (65) are slidably connected with a push plate (6), the outer walls of the bottoms of the two push plates (6) are fixedly connected with the same semicircular bending plate (61), and the outer wall of the semicircular bending plate (61) is movably plugged with a bending hole (62).

7. A cable load testing machine for power strip production according to claim 6, characterized in that: The two pushing plates (6) are slidably connected to the inside with an insert plate (63), the outer wall of the insert plate (63) is movably inserted into the gap between the two moving plates (71), the outer wall of one side of the two insert plates (63) is fixedly connected to the same connecting plate (64), the inside of one side of the connecting plate (64) is fixedly connected to a return spring (66), and the outer wall of one end of the return spring (66) is fixedly connected to the outer wall of one side of the pushing plate (6).

8. The cable load testing machine for power strip production according to claim 2, characterized in that: A storage battery (81) is arranged inside the upper pressure shell (5), a heating plate (8) is fixedly connected inside the arc-shaped clamping plate (54), and a control switch (82) is connected to the outer wall of the top of the upper pressure shell (5).

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