A large current conductor resistance tester with test terminal contact failure detection

Abstract

The application discloses a large-current conductor resistance tester with test terminal contact failure detection, and belongs to the technical field of conductor resistance testing. The large-current conductor resistance tester comprises a base, a protective cover connected to the top end of the base through a hinge, a main battery and a backup battery arranged in the base, a test slot formed in the top of the base, two moving blocks slidingly connected in the test slot, positioning columns fixedly installed on the top of the moving blocks, a lower fixing frame fixedly installed in the test slot, an upper fixing frame arranged at the top end of the lower fixing frame, a power supply end arranged on the inner wall of the bottom of the lower fixing frame, signal ends connected and installed on the inner walls of the two sides of the lower fixing frame, a first spring fixedly installed in the lower fixing frame, a contact end connected to the top end of the first spring, a pressure rod slidingly connected in the upper fixing frame, a pressure plate fixedly installed at one end of the pressure rod, and a display screen arranged at the top end of the base. The application can detect the contact end before detecting the resistance, so that the detection effect is not affected by poor contact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conductor resistance testing, in particular to a large-current conductor resistance tester with test terminal contact failure detection. BACKGROUND

[0002] Resistance refers to the hindering effect of a conductor on current, and the greater the resistance, the greater the hindering effect of the conductor on current, and the smaller the resistance, the smaller the hindering effect of the conductor on current. The influencing factors of conductor resistance include length, cross-sectional area, material and temperature, etc. In order to test the resistance of the conductor, the conductor needs to be detected by passing current. However, the test terminal is prone to damage after long-term use of the resistance tester, resulting in poor contact. If not found in time, it will affect the detection effect, and there is a certain limitation. Therefore, a large-current conductor resistance tester with test terminal contact failure detection is needed to solve this problem. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a large-current conductor resistance tester with test terminal contact failure detection, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a large-current conductor resistance tester with test terminal contact failure detection, comprising a base, the top of the base is connected with a protective cover through a hinge, and a main battery and a secondary battery are arranged in the base, a test slot is formed in the top of the base, and two moving blocks are slidably connected in the test slot, a positioning column is fixedly installed on the top of each moving block, a connecting frame is fixedly installed on one side of each moving block, and a knob is threadedly connected in the connecting frame, a lower fixing frame is fixedly installed in the test slot, and an upper fixing frame is arranged at the top of the lower fixing frame, a power terminal is arranged on the inner wall of the bottom of the lower fixing frame, and signal terminals are connected and installed on the inner walls of the two sides of the lower fixing frame, a first spring is fixedly installed in the lower fixing frame, and a contact terminal is connected to the top end of the first spring, a pressure rod is slidably connected in the upper fixing frame, and a pressure plate is fixedly installed on one end of the pressure rod, a second spring is connected between the upper fixing frame and the pressure plate, and a display screen is arranged at the top of the base.

[0005] As a preferred technical scheme of the present application, the top of the base is fixedly installed with a placing column, the placing column and the positioning column are designed in a threaded structure, and a fastening cap is threadedly connected to the outside of the placing column. The large-current conductor can be fixed by the fastening cap, and the placing column is used to place the fastening cap to facilitate the connection of the large-current conductor and the positioning column.

[0006] As a preferred technical scheme of the present application, the knob bottom is fixedly installed with a limiting plate, and a moving groove matched with the knob is formed in the base, the knob can be used to control the movement of the moving block, and the moving block can be fixed.

[0007] As a preferred technical scheme of the present application, the lower fixing frame top end is fixedly installed with a positioning pin, and the upper fixing frame bottom is formed with a positioning block matched with the positioning pin, facilitating alignment.

[0008] As a preferred technical scheme of the present application, the base top end is provided with an indicating lamp connected with the power supply end through a circuit, the secondary battery, the power supply end and the indicating lamp are a series circuit, the circuit is communicated by contacting the contact end with the power supply end, so as to determine whether the test end has a poor contact condition.

[0009] As a preferred technical scheme of the present application, the base outer side is provided with a switch connected with the signal end through a circuit, the primary battery, the positioning column, the switch and the signal end are a series circuit, the positioning column can be controlled to avoid electric shock when placing.

[0010] As a preferred technical scheme of the present application, the protective cover is made of transparent insulating material, and covers the test groove during detection, increasing safety.

[0011] The present application has the following beneficial effects:

[0012] The contact end is contacted with the conductor, and the signal end is used for detection, and the display screen displays the value;

[0013] The contact end can be controlled to descend by the pressing rod and the pressing plate, and whether the contact end has a poor contact condition is determined by contacting the power supply end;

[0014] The conductor is placed by the positioning column, and can be fixed by the fastening cap, the positioning column can also be moved and fixed by the knob, and is suitable for conductors of different lengths;

[0015] The switch is used to control the current of the primary battery, to avoid electric shock caused by line communication when placing the conductor, and the protective cover can increase safety during detection. DRAWINGS

[0016] Figure 1 The present application is a 3D structure schematic diagram;

[0017] Figure 2 The present application is a top view;

[0018] Figure 3 The present application is a connection structure schematic diagram of the connecting frame;

[0019] Figure 4Figure 1 is a schematic view of the connecting structure of the fixed frame in the present application.

[0020] In the figure: 1, base; 2, protective cover; 3, main battery; 4, auxiliary battery; 5, test slot; 6, moving block; 7, positioning column; 8, knob; 9, connecting frame; 10, limiting plate; 11, fastening cap; 12, lower fixed frame; 13, upper fixed frame; 14, power end; 15, signal end; 16, first spring; 17, contact end; 18, pressing rod; 19, pressing plate; 20, second spring; 21, display screen; 22, switch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. EMBODIMENT

[0022] Please refer to Figure 1 - Figure 4The utility model provides a kind of large current conductor resistance tester with test end contact bad detection, including base 1, the top of base 1 is connected with protective cover 2 by hinge, and main battery 3 and auxiliary battery 4 are provided in base 1, protective cover 2 is made of transparent insulating material, cover test groove 5 when detecting, increase security, the top of base 1 is equipped with test groove 5, and two moving blocks 6 are slidably connected in test groove 5, and positioning column 7 is fixedly installed on the top of moving block 6, placing column is fixedly installed on the top of base 1, and placing column and positioning column 7 are designed with screw structure, and fastening cap 11 is connected on the outside of placing column by screw, can be fixed by fastening cap 11 to large current conductor, placing column is used to place fastening cap 11 to facilitate the connection of large current conductor and positioning column 7, limit plate 10 is fixedly installed on the bottom of knob 8, and moving groove that is adapted to knob 8 is set in base 1, can be moved by using knob 8 to control moving block 6, and it can be fixed, connecting frame 9 is fixedly installed on the side of moving block 6, and knob 8 is connected in connecting frame 9 by screw, lower fixed frame 12 is fixedly installed in test groove 5, and upper fixed frame 13 is provided at the top of lower fixed frame 12, positioning pin is fixedly installed on the top of lower fixed frame 12, and the bottom of upper fixed frame 13 is equipped with the positioning block that is adapted to positioning pin, it is convenient to align, and the bottom inner wall of lower fixed frame 12 is provided with power end 14, and the inner wall of both sides of lower fixed frame 12 is connected and installed with signal end 15, first spring 16 is fixedly installed in lower fixed frame 12, and contact end 17 is connected in the top of first spring 16, indicating lamp is provided at the top of base 1, and is connected with power end 14 by circuit, auxiliary battery 4, power end 14 and indicating lamp are series circuit, make circuit communication by letting contact end 17 contact with power end 14, to judge whether test end exists contact bad condition, pressure bar 18 is slidably connected in upper fixed frame 13, and pressure bar 18 one end is fixedly installed with pressure plate 19, and second spring 20 is connected between upper fixed frame 13 and pressure plate 19, display screen 21 is provided at the top of base 1, switch 22 is provided on the outside of base 1, and is connected with signal end 15 by circuit, main battery 3, positioning column 7, switch 22 and signal end 15 are series circuit, can control positioning column 7 by using switch 22, avoid electric shock when placing.

[0023] Working principle: when using, the two ends of the large current conductor need to be connected with the positioning column 7, and the detection part is positioned on the contact end 17, the position can be adjusted by rotating the knob 8 to control the positioning column 7 to move, and the position is adjusted according to the large current conductor and the detection part, and the knob 8 is rotated, the limiting plate 10 is in contact with the bottom of the moving groove, and is fixed, then the upper fixing frame 13 is covered, the pressure rod 18 is controlled to descend, the contact end 17 is driven to descend synchronously, and the electrified end 14 is in contact, when the contact end 17 is in poor contact, the voltage between the electrified end 14 is too low, the red light of the indicator lamp is bright, when the contact end 17 has no quality problem, the electrified end 14 is normally connected, the green indicator lamp is bright, finally the protective cover 2 is covered, the switch 22 is opened, the moving block 6 and the positioning column 7 are powered, and the value is detected through the contact end 17 and the signal end 15, and is transmitted to the display screen 21 for display.

[0024] The above are only preferred embodiments of the present application and are not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high current conductor resistance tester with test terminal contact failure detection comprising a base (1) characterised in that, The top end of the base (1) is connected with a protective cover (2) through a hinge, and a main battery (3) and a secondary battery (4) are arranged in the base (1), a test groove (5) is formed in the top of the base (1), and two moving blocks (6) are slidably connected in the test groove (5), a positioning column (7) is fixedly installed on the top of each moving block (6), a connecting frame (9) is fixedly installed on one side of each moving block (6), and a knob (8) is threadedly connected in the connecting frame (9), a lower fixed frame (12) is fixedly installed in the test groove (5), and an upper fixed frame (13) is arranged at the top end of the lower fixed frame (12), a power supply end (14) is arranged on the inner wall of the bottom of the lower fixed frame (12), and a signal end (15) is connected and installed on the inner wall of the two sides of the lower fixed frame (12), an indicating lamp is arranged at the top end of the base (1) and connected with the power supply end (14) through a line, the secondary battery (4), the power supply end (14) and the indicating lamp are a series circuit, a first spring (16) is fixedly installed in the lower fixed frame (12), and a contact end (17) is connected to the top end of the first spring (16), a pressure rod (18) is slidably connected in the upper fixed frame (13), a pressure plate (19) is fixedly installed on one end of the pressure rod (18), a second spring (20) is connected between the upper fixed frame (13) and the pressure plate (19), a display screen (21) is arranged at the top end of the base (1), a switch (22) is arranged on the outer side of the base (1) and connected with the signal end (15) through a line, and the main battery (3), the switch (22) and the signal end (15) are a series circuit.

2. A high current conductor resistance tester with test terminal contact failure detection according to claim 1, wherein, The top end of the base (1) is fixedly installed with a placing column, the placing column and the positioning column (7) are designed in a threaded structure, and a fastening cap (11) is threadedly connected to the outer side of the placing column.

3. A high current conductor resistance tester with test terminal contact failure detection as defined in claim 1, wherein, The bottom of the knob (8) is fixedly installed with a limiting plate (10), and a moving groove matched with the knob (8) is formed in the base (1).

4. A high current conductor resistance tester with test terminal contact failure detection as defined in claim 1, wherein, The top end of the lower fixed frame (12) is fixedly installed with a positioning pin, and the bottom of the upper fixed frame (13) is formed with a positioning block matched with the positioning pin.

5. A high current conductor resistance tester with test terminal contact failure detection as defined in claim 1, wherein, The protective cover (2) is made of transparent insulating material.

Images