Electric wire and cable insulativity testing machine

Abstract

The utility model discloses a wire and cable insulativity testing machine, which comprises a testing machine main body, the testing machine main body comprises a base, a screw rod is rotatably arranged in the middle of the upper surface of the base, the end part of the screw rod is provided with a positive and negative rotation motor on the surface of the end part of the base, and the outer surface of the screw rod is provided with a movable frame. A test pencil is fixed at the top end of the movable frame; through the design of a conductive rolling mechanism, during testing, when a cable penetrates through the interior of a conductive metal ring and is located in a conductive driving roller and a conductive driven roller, the conductive driven roller is elastically connected, and when the conductive metal ring slides on the outer surface of the cable, the conductive metal ring can slide on the outer surface of the cable. The surface of the conductive metal ring is always contacted with the conductive driving roller and the conductive driven roller for smooth sliding test, friction damage to surface sliding of the cable is not easy to generate, the conductive driving roller and the conductive driven roller are used for control during sliding test, part of the cable is not easy to separate from the interior of the conductive metal ring during vibration test, and the test is more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulation testing machines, and particularly relates to a wire and cable insulation testing machine. Background Technique

[0002] A cable usually includes a cable core and an insulating outer skin. The insulation of the cable is for cable insulation protection. During the production process of the cable, it is necessary to detect the insulation of the cable. Usually, it is tested through an insulation testing machine. And the existing insulation testing machine is a device for testing the insulation of the outer insulation layer of the cable. During the test, the conductive driving roller and the conductive driven roller are controlled. When vibrating and testing, it is not easy to cause part of the cable to break away from the inside of the conductive metal ring, and the test is more accurate, improving the smooth sliding test effect and the pressing test accuracy of the testing machine body during the insulation test of the cable.

[0003] According to the wire and cable insulation testing machine disclosed in the authorized patent application No. 202322147661.4, during the cable insulation test of the existing testing machine, the cable is passed through the inside of the conductive metal ring, and the end of the cable is fixed on the testing machine through a conductive fixture. After the fixed installation, the testing machine is vibrated by a vibration motor, and then the electric pen and the conductive metal ring are driven to slide on the surface of the cable for the insulation test. Therefore, when the conductive metal ring slides on the outer surface of the cable, it is easy to cause part of the cable not to contact the conductive metal ring, affecting the inaccuracy of the test. Even when the conductive metal ring slides on the cable surface, it is not easy to roll and slide, and it is easy to cause frictional damage during the back-and-forth sliding, thus affecting the smooth sliding test effect and the pressing test accuracy of the insulation testing machine during the cable insulation test. For this reason, the present utility model proposes a wire and cable insulation testing machine. Content of the Utility Model

[0004] The purpose of the present utility model is to provide a wire and cable insulation testing machine to solve the problems proposed in the above background technique, that is, during the cable insulation test of the testing machine, it is easy to cause part of the cable not to contact the conductive metal ring, affecting the inaccuracy of the test. Even when the conductive metal ring slides on the cable surface, it is not easy to roll and slide, and it is easy to cause frictional damage during the back-and-forth sliding, thus affecting the smooth sliding test effect and the pressing test accuracy of the insulation testing machine during the cable insulation test.

[0005] To achieve the above object, the utility model provides the following technical solutions: an insulating property testing machine for electric wires and cables, including a testing machine main body, the testing machine main body includes a base, a lead screw is rotatably arranged in the middle of the upper surface of the base, a forward and reverse motor is installed on the end surface of the end of the lead screw located at the end of the base, a moving frame is arranged on the outer surface of the lead screw, a testing electric pen is fixed at the top of the moving frame, a conductive metal ring is arranged at the end of the testing electric pen, conductive clamps are arranged at both ends of the upper surface of the base, a vibration motor is arranged at the end of the base, a storage battery is arranged inside the base, and the storage battery is electrically connected to the conductive clamps through a wire. It further includes:

[0006] A conductive rolling mechanism, and the conductive rolling mechanism includes a conductive rolling component arranged at the inner bottom end of the conductive metal ring, and an elastic connection component is arranged at the end of the conductive rolling component at the bottom end of the conductive metal ring;

[0007] A disassembly and installation protection mechanism, and the disassembly and installation protection mechanism includes protection components arranged on both sides of the upper surface of the base, two connection components are arranged on the upper surface of the protection components, and an elastic locking component is arranged at the end of the connection components.

[0008] Preferably, the conductive rolling component includes a groove opened at the inner bottom end of the conductive metal ring, a conductive driving roller is rotatably arranged at the inner bottom end of the groove, and a conductive driven roller is arranged on the upper surface of the conductive driving roller inside the groove.

[0009] Preferably, the elastic connection component includes chutes opened on both sides of the top end of the groove, conductive sliders are arranged inside the chutes, conductive buffer springs are arranged at both ends of the conductive sliders, and the end of the conductive driven roller is rotatably connected to the inside of the conductive slider through a bearing.

[0010] Preferably, the conductive driven roller is elastically connected to the inside of the groove through the conductive slider and the conductive buffer spring.

[0011] Preferably, the protection components include a first protective cover and a second protective cover respectively arranged on both sides of the upper surface of the base, and hinges are arranged at the connection between the bottom ends of the first protective cover and the second protective cover and the surface of the base.

[0012] Preferably, the connection components include two fixing blocks arranged on the upper surface of the first protective cover, and the two fixing blocks are symmetrically arranged.

[0013] Preferably, the elastic locking component includes an anti-slip chuck that is limited and slidably connected to the inside of the fixing block, a pressing spring is arranged at the connection between the end of the anti-slip chuck and the inside of the fixing block, two card hole plates are arranged on the upper surface of the second protective cover, and the anti-slip chuck penetrates through the inside of the card hole plates.

[0014] Preferably, the end surface of the fixing block is slidably connected with a threaded rod, and the end of the threaded rod is rotationally connected to the end surface of the anti-slip clamp via a threaded structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By designing a conductive rolling mechanism, during the test, the cable passes through the interior of the conductive metal ring and is inside the conductive active roller and the conductive driven roller, and the conductive driven roller is elastically connected. When the conductive metal ring slides on the outer surface of the cable, it always contacts the surface of the conductive active roller and the conductive driven roller for a smooth sliding test, and it is not easy to cause friction damage to the surface sliding of the cable. During the sliding test, it is controlled by the conductive active roller and the conductive driven roller, and it is not easy to cause part of the cable to fall out of the conductive metal ring during the vibration test. The test is more accurate, and the smooth sliding test effect and the accuracy of the compression test of the test machine main body when testing the cable insulation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the partial structure of the conductive metal ring of the utility model;

[0020] Figure 4 For this utility model Figure 3 The schematic diagram of the cross-sectional structure at the enlarged part B in the middle;

[0021] Figure 5 For this utility model Figure 1 The enlarged structural diagram of part A in the middle;

[0022] Figure 6 It is a schematic diagram of the structure of the fixing block, the clamping hole plate and the anti-slip clamping head of the utility model;

[0023] In the figure: 100, test machine body; 101, base; 1011, protective cover 1; 1012, protective cover 2; 1013, hinge; 1014, fixing block; 1015, threaded rod; 1016, card hole plate; 1017, anti-skid card head; 1018, compression spring; 102, forward and reverse motor; 103, conductive clamp; 104, vibration motor; 105, battery; 106, moving frame; 107, lead screw; 108, conductive metal ring; 1081, groove; 1082, conductive active roller; 1083, conductive driven roller; 1084, conductive buffer spring; 1085, conductive slider; 1086, slide groove; 109, test pen. DETAILED DESCRIPTION

[0024] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a wire and cable insulation tester, including a tester main body 100. The tester main body 100 includes a base 101. The tester main body 100 is stably placed for testing through the base 101. A lead screw 107 is rotatably arranged in the middle of the upper surface of the base 101. A forward and reverse motor 102 is installed on the end surface of the end of the lead screw 107 located at the end of the base 101. A moving frame 106 is arranged on the outer surface of the lead screw 107. A test electric pen 109 is fixed at the top of the moving frame 106. A conductive metal ring 108 is arranged at the end of the test electric pen 109. Conductive clamps 103 are arranged at both ends of the upper surface of the base 101. A vibration motor 104 is arranged at the end of the base 101. A storage battery 105 is arranged inside the base 101. The storage battery 105 is electrically connected to the conductive clamp 103 through a wire. The cable passes through the connection between the conductive active roller 1082 and the conductive driven roller 1083 at the conductive metal ring 108, and the end of the cable is fixed to the conductive clamp 103. After fixation, the storage battery 105 supplies power to the conductive clamp 103 and the cable. When the vibration motor 104 vibrates, the forward and reverse motor 102 operates to drive the lead screw 107 to rotate. The rotation of the lead screw 107 moves the moving frame 106. The movement of the moving frame 106 drives the test electric pen 109 to slide with the conductive metal ring 108 for insulation testing. It further includes:

[0026] A conductive rolling mechanism, and the conductive rolling mechanism includes a conductive rolling component arranged at the inner bottom end of the conductive metal ring 108. An elastic connection component is arranged at the end of the conductive rolling component at the bottom end of the conductive metal ring 108. When the tester main body 100 conducts an insulation test on the cable, the conductive rolling mechanism can smoothly slide and control the conductive metal ring 108 on the outer surface of the cable for insulation test, enabling more accurate testing and improving the smooth sliding test effect and the pressing test accuracy of the tester main body 100 when testing the cable insulation.

[0027] In order to facilitate the smooth sliding control of the conductive metal ring 108 on the outer surface of the cable through the conductive rolling assembly and stably conduct the insulation test, in this embodiment, preferably, the conductive rolling assembly includes a groove 1081 formed at the inner bottom end of the conductive metal ring 108. A conductive driving roller 1082 is rotatably provided at the inner bottom end of the groove 1081. A conductive driven roller 1083 is arranged on the upper surface of the conductive driving roller 1082 inside the groove 1081. The cable is always in contact with the conductive driving roller 1082 and the conductive driven roller 1083 to smoothly slide and control the insulation test.

[0028] In order to facilitate the elastic connection of the conductive driven roller 1083 through the elastic connection assembly and keep the conductive driven roller 1083 and the conductive driving roller 1082 in contact with the cable surface all the time, in this embodiment, preferably, the elastic connection assembly includes sliding grooves 1086 formed on both sides of the top end of the groove 1081. A conductive slider 1085 is arranged inside the sliding grooves 1086. Conductive buffer springs 1084 are arranged at both ends of the conductive slider 1085. The conductive slider 1085 is elastically connected in the sliding grooves 1086 through the deformation of the conductive buffer springs 1084. The end of the conductive driven roller 1083 is rotatably connected to the inside of the conductive slider 1085 through a bearing. The conductive driven roller 1083 is elastically connected to the inside of the groove 1081 through the conductive slider 1085 and the conductive buffer springs 1084. When the conductive slider 1085 is elastically connected, it can drive the conductive driven roller 1083 to be elastically connected, so that the surface of the conductive driven roller 1083 and the conductive driving roller 1082 in contact with the cable is always controlled for smooth sliding test.

[0029] A disassembly and installation protection mechanism, and the disassembly and installation protection mechanism includes protection components arranged on both sides of the upper surface of the base 101. Two connection components are arranged on the upper surface of the protection components. An elastic locking component is arranged at the end of the connection component. When the testing machine main body 100 conducts the cable insulation test, the disassembly and installation protection operation of the upper surface of the base 101 can be carried out by the disassembly and installation protection mechanism, and the disassembly and installation operation is convenient, improving the convenience of the disassembly and installation protection during the cable insulation test of the testing machine main body 100.

[0030] In order to facilitate the protection test of the upper surface of the base 101 through the protection component and conversely facilitate opening, in this embodiment, preferably, the protection component includes a protection cover one 1011 and a protection cover two 1012 respectively arranged on both sides of the upper surface of the base 101. Hinges 1013 are arranged at the connection between the bottom ends of the protection cover one 1011 and the protection cover two 1012 and the surface of the base 101, which is convenient to open or close the protection cover one 1011 and the protection cover two 1012 through the hinges 1013.

[0031] In order to facilitate the elastic installation of the anti-slip chuck 1017 through the connecting component, in this embodiment, preferably, the connecting component includes two fixing blocks 1014 arranged on the upper surface of the first protective cover 1011, and the two fixing blocks 1014 are symmetrically arranged to facilitate the elastic connection of the anti-slip chuck 1017 inside the fixing blocks 1014.

[0032] In order to facilitate the locking and fixing of the first protective cover 1011 and the second protective cover 1012 after closing through the elastic locking component, in this embodiment, preferably, the elastic locking component includes an anti-slip chuck 1017 that is limited and slidably connected inside the fixing block 1014. A compression spring 1018 is arranged at the connection between the end of the anti-slip chuck 1017 and the inside of the fixing block 1014. Two card hole plates 1016 are arranged on the upper surface of the second protective cover 1012. The anti-slip chuck 1017 is elastically connected inside the fixing block 1014 through the compression spring 1018 to facilitate elastic snap-fit installation. The anti-slip chuck 1017 penetrates through the inside of the card hole plate 1016 until the first protective cover 1011 and the second protective cover 1012 are clamped and fixed through the elastic snap-fit of the anti-slip chuck 1017 inside the card hole plate 1016. The end surface of the fixing block 1014 is slidably connected with a threaded rod 1015. The end of the threaded rod 1015 is rotationally connected with the end surface of the anti-slip chuck 1017 through a threaded structure, which is convenient for holding the threaded rod 1015 to adjust the anti-slip chuck 1017 during closing protection, facilitating opening or closing, and rotating the threaded rod 1015 to reinforce the installation after snap-fit installation.

[0033] The working principle and usage process of the present utility model: For this wire and cable insulation testing machine, during the test, the base 101 contacts the ground to stably place the testing machine main body 100 at the testing position. The cable penetrates through the conductive metal ring 108 at the connection between the conductive driving roller 1082 and the conductive driven roller 1083, and the end of the cable is fixed to the conductive fixture 103. After fixing, the storage battery 105 supplies power to the conductive fixture 103 and the cable. When the vibration motor 104 vibrates, the forward and reverse motor 102 operates to drive the lead screw 107 to rotate. The rotation of the lead screw 107 moves the moving frame 106. The movement of the moving frame 106 drives the test pen 109 and the conductive metal ring 108 to slide, so that the conductive metal ring 108 slides on the outer surface of the cable for insulation testing.

[0034] Then, when the test machine main body 100 is under test, when the cable passes through the inside of the conductive metal ring 108 and is inside the conductive driving roller 1082 and the conductive driven roller 1083, the conductive buffer spring 1084 deforms to elastically connect the conductive driven roller 1083 by sliding the conductive slider 1085 inside the chute 1086. When the conductive metal ring 108 slides on the outer surface of the cable, it always contacts the surfaces of the conductive driving roller 1082 and the conductive driven roller 1083 and slides smoothly for testing, which is not likely to cause frictional damage to the surface of the cable. Moreover, during the sliding test, it is controlled by the conductive driving roller 1082 and the conductive driven roller 1083. During the vibration test, it is not easy for some cables to break away from the inside of the conductive metal ring 108, enabling more accurate testing and improving the smooth sliding test effect and the pressing test accuracy of the test machine main body 100 for cable insulation testing;

[0035] Finally, when the test machine main body 100 conducts a test after installing the cable, the end of the anti-slip chuck 1017 driven by the sliding threaded rod 1015 is flush with the surface of the fixed block 1014. The protective cover one 1011 and the protective cover two 1012 are closed on the upper surface of the base 101 through the hinge 1013. After closing, the end of the fixed block 1014 extends to the surface of the protective cover two 1012 and is located on one side of the hole plate 1016. Then, the threaded rod 1015 is loosened again. The anti-slip chuck 1017 is elastically clamped inside the hole plate 1016 for clamping and fixing installation due to the deformation of the pressing spring 1018. After the clamping installation, the threaded rod 1015 is rotated again to fixedly install the anti-slip chuck 1017, which is convenient for fixedly installing the protective cover one 1011 and the protective cover two 1012 after closing, and is more convenient for fixed installation and protection. Conversely, it is more convenient to open after use, improving the convenience of protective disassembly and assembly of the test machine main body 100 for cable insulation testing.

[0036] Although the embodiments of the present invention have been shown and described (see the above detailed description), those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire and cable insulation tester, comprising a tester body (100), the tester body (100) comprising a base (101), a screw rod (107) rotating in the middle of the upper surface of the base (101), the end of the screw rod (107) being located on the end surface of the base (101) and a forward and reverse motor (102) being installed, a moving frame (106) being arranged on the outer surface of the screw rod (107), a test pen (109) being fixed on the top of the moving frame (106), a conductive metal ring (108) being arranged at the end of the test pen (109), conductive clamps (103) being arranged at both ends of the upper surface of the base (101), a vibration motor (104) being arranged at the end of the base (101), a storage battery (105) being arranged inside the base (101), the storage battery (105) being electrically connected to the conductive clamp (103) through a wire, and characterized in that: Also includes: A conductive rolling mechanism, wherein the conductive rolling mechanism comprises a conductive rolling component arranged at the inner bottom end of a conductive metal ring (108), wherein the bottom end of the conductive metal ring (108) is located at the end of the conductive rolling component and an elastic connecting component is arranged; The disassembly and assembly protection mechanism comprises protection components arranged on both sides of the upper surface of a base (101), the upper surface of the protection component is provided with two connection components, and the ends of the connection components are provided with elastic locking components.

2. The wire and cable insulation testing machine according to claim 1, characterized in that: The conductive rolling assembly comprises a groove (1081) opened at the bottom end of the conductive metal ring (108), a conductive active roller (1082) is rotatably arranged at the bottom end of the groove (1081), and a conductive driven roller (1083) is arranged on the upper surface of the conductive active roller (1082) located inside the groove (1081).

3. The wire and cable insulation testing machine according to claim 2, characterized in that: The elastic connection component comprises a slide groove (1086) opened on both sides of the top of the groove (1081), a conductive slider (1085) is arranged inside the slide groove (1086), conductive buffer springs (1084) are arranged at both ends of the conductive slider (1085), and the end of the conductive driven roller (1083) is rotatably connected to the inside of the conductive slider (1085) through a bearing.

4. The wire and cable insulation testing machine according to claim 3, characterized in that: The conductive driven roller (1083) is elastically connected to the interior of the groove (1081) via the conductive sliding block (1085) and the conductive buffer spring (1084).

5. The wire and cable insulation testing machine according to claim 1, characterized in that: The protection assembly comprises a protection cover 1 (1011) and a protection cover 2 (1012) respectively arranged on both sides of the upper surface of the base (101), and a hinge (1013) is arranged at the connection between the bottom ends of the protection cover 1 (1011) and the protection cover 2 (1012) and the surface of the base (101).

6. The wire and cable insulation testing machine according to claim 5, characterized in that: The connection assembly comprises two fixing blocks (1014) arranged on the upper surface of the protective cover (1011), and the two fixing blocks (1014) are symmetrically arranged.

7. The wire and cable insulation testing machine according to claim 6, characterized in that: The elastic locking assembly comprises an anti-skid clamp (1017) which is connected to the interior of a fixed block (1014) in a limited sliding manner, a compression spring (1018) is provided at the connection between the end of the anti-skid clamp (1017) and the interior of the fixed block (1014), and two clamping hole plates (1016) are provided on the upper surface of the second protective cover (1012), and the anti-skid clamp (1017) passes through the interior of the clamping hole plates (1016).

8. The wire and cable insulation testing machine according to claim 7, characterized in that: The end surface of the fixing block (1014) is slidably connected to a threaded rod (1015), and the end of the threaded rod (1015) is rotationally connected to the end surface of the anti-slip clamp (1017) via a threaded structure.

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