Voltage internal resistance test probe

Abstract

The utility model relates to the technical field of voltage internal resistance testing equipment, and discloses a voltage internal resistance testing probe, which comprises a probe pen, a probe body and a lead, the probe body is arranged at the front end of the probe pen, the lead is connected to the tail end of the probe pen, the lead is electrically connected with the probe body, and a probe pen shell consists of two parts, external threads are arranged on the outer surface of the front end of the needle pen, the needle pen is in threaded connection with a fastening threaded sleeve through the external threads, and supporting assemblies are arranged on the outer side and the lower end of the needle pen. According to the voltage internal resistance test probe, the probe pen shell is composed of two parts, the fastening thread sleeve and the end cover are convenient to install through the arrangement of the external thread and the half-thread connecting pipe, when the fastening thread sleeve and the end cover are rotationally detached, the two parts of the probe pen can be effectively detached, damaged parts of the probe can be conveniently maintained or replaced in time, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage internal resistance testing equipment, in particular to a voltage internal resistance testing probe. Background Art

[0002] Voltage internal resistance test usually refers to the measurement of the internal resistance of electrical equipment such as voltmeters or power supplies using voltage internal resistance test equipment. Voltage internal resistance test probes are key components in voltage internal resistance test equipment used to contact and measure the power supply or battery to be tested. These probes play a vital role in the test process. They are not only responsible for establishing electrical connections, but also directly affect the accuracy and reliability of the measurement.

[0003] Existing voltage internal resistance test probes generally include a needle body and a needle pen. The needle body is usually made of metal and is responsible for contacting the surface of the object to be tested (such as a battery, power supply, etc.) to establish an electrical connection. The needle pen (or test lead) is the part connected to the needle body, which is usually used to connect the needle body to a voltage internal resistance tester and includes a wire, plug or other connecting device to transmit the test signal from the probe to the tester.

[0004] Since the outer shell of the existing probe pen is generally an integrated structure, when the connection between the pen and the wire or the internal joint of the pen is damaged, it is not convenient to disassemble it in time for replacement and repair. In addition, the staff generally need to hold the pen in hand during testing, which poses certain safety hazards and cannot effectively free their hands, and it is not convenient to record the test results in time. Therefore, it is necessary to provide a voltage internal resistance test probe to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a voltage internal resistance test probe, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical solution: a voltage internal resistance test probe, comprising a needle pen, a needle body and a wire, the needle body is arranged at the front end of the needle pen, the wire is connected to the end of the needle pen, the wire is electrically connected to the needle body, the needle pen shell is composed of two parts, the outer surface of the front end of the needle pen is provided with an external thread, the needle pen is threadedly connected to a fastening screw sleeve through the external thread, and a support component is arranged on the outside and lower end of the needle pen.

[0007] Preferably, two semi-threaded connecting pipes are fixedly provided at the end of the needle pen, and the outer surface of the semi-threaded connecting pipe is threadedly connected with an end cap, and the center of the end cap is provided with a through hole for the wire to pass through.

[0008] Preferably, the inner walls of the two semi-threaded pipes are fixedly provided with clamping blocks, the outer surface of the conductor is fixedly sleeved with a positioning block, and the positioning block is located between the two clamping blocks.

[0009] Preferably, convex shafts are fixedly provided on both sides of the fastening screw sleeve and the outer surface of the end cover.

[0010] Preferably, the support assembly includes a base, a metal support soft rod and a U-shaped clip, and the U-shaped clip is clamped on the outer surface of the needle pen.

[0011] Preferably, the upper end of the metal support soft rod is connected to the U-shaped clip, and the base is arranged at the lower end of the metal support soft rod.

[0012] Preferably, circular holes are provided at the upper ends of both side walls of the U-shaped clamp, and fastening bolts are provided through the circular holes at the upper end of the U-shaped clamp.

[0013] Preferably, a fastening nut is threadedly connected to the end of the fastening bolt, and the fastening bolt and the fastening nut are detachable.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The voltage internal resistance test probe has a needle pen shell composed of two parts. The outer thread and the semi-threaded pipe are provided to facilitate the installation of the fastening screw sleeve and the end cover. When the fastening screw sleeve and the end cover are rotated and disassembled, the two parts of the needle pen can be effectively separated, which is convenient for timely repair or replacement of damaged parts of the probe, saving time and effort.

[0016] 2. The voltage internal resistance test probe is provided with a support component. When the U-shaped clip is clamped on the outer surface of the needle pen, the fastening bolt is passed through the round hole and then tightened to enable the U-shaped clip to effectively clamp the probe. Then, by providing a metal support soft rod, the probe can be effectively supported and the probe can be adjusted to any angle without the need for staff to hold it, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the voltage internal resistance test probe of the utility model;

[0018] Figure 2 It is a schematic diagram of the installation structure of the fastening screw sleeve and the end cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the partial structure of the voltage internal resistance test probe of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support assembly of the utility model;

[0021] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the structure in the middle.

[0022] In the figure: 1. Needle pen; 101. Needle body; 102. Conducting wire; 103. External thread; 104. Half-threaded pipe joint; 105. Clamping block; 2. Tightening sleeve; 3. End cover; 301. Perforation; 4. Convex shaft; 5. Positioning block; 6. Support assembly; 601. Base; 602. Metal support flexible rod; 603. U-shaped clamp; 604. Tightening bolt; 605. Tightening nut. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , a voltage internal resistance test probe, including a needle pen 1, a needle body 101 and a conducting wire 102. The needle body 101 is arranged at the front end of the needle pen 1, the conducting wire 102 is connected to the end of the needle pen 1, the conducting wire 102 is electrically connected to the needle body 101. The outer shell of the needle pen 1 is composed of two parts. The outer surface of the front end of the needle pen 1 is provided with an external thread 103. The needle pen 1 is threadedly connected with a tightening sleeve 2 through the external thread 103. A support assembly 6 is arranged on the outer side and the lower end of the needle pen 1.

[0025] Among them; two half-threaded pipe joints 104 are fixedly arranged at the end of the needle pen 1. The outer surface of the half-threaded pipe joint 104 is threadedly connected with an end cover 3. A perforation 301 for the conducting wire 102 to pass through is opened in the center of the end cover 3. By providing the external thread 103 and the half-threaded pipe joint 104, it is convenient to install the tightening sleeve 2 and the end cover 3. When the tightening sleeve 2 and the end cover 3 are rotated and disassembled, the two parts of the needle pen 1 can be effectively disassembled, which is convenient for timely repair or replacement of the damaged parts of the probe.

[0026] Among them; clamping blocks 105 are fixedly arranged on the inner walls of the two half-threaded pipe joints 104. A positioning block 5 is fixedly sleeved on the outer surface of the conducting wire 102. The positioning block 5 is located between the two clamping blocks 105. By providing the clamping blocks 105 and the positioning block 5, when the end cover 3 is threadedly connected with the half-threaded pipe joint 104, the clamping blocks 105 can effectively clamp the positioning block 5, thereby realizing the position fixation of the conducting wire 102.

[0027] Among them; convex shafts 4 are fixedly arranged on both sides of the outer surfaces of the tightening sleeve 2 and the end cover 3. By providing the convex shafts 4, it is convenient to drive the tightening sleeve 2 and the end cover 3 to rotate, and it is convenient to disassemble and assemble the tightening sleeve 2 and the end cover 3.

[0028] Among them; the upper end of the metal supporting soft rod 602 is connected to the U-shaped clamp 603, the base 601 is arranged at the lower end of the metal supporting soft rod 602, and the upper ends of the two side walls of the U-shaped clamp 603 are opened with circular holes, and the upper end of the U-shaped clamp 603 is provided with a fastening bolt 604 through the circular hole, and the end of the fastening bolt 604 is threadedly connected with a fastening nut 605, and the fastening bolt 604 and the fastening nut 605 are detachable. When the U-shaped clamp 603 is stuck on the outer surface of the needle pen 1, the fastening bolt 604 is passed through the circular hole, and then the fastening bolt 604 is tightened to realize the U-shaped clamp 603 to effectively clamp the probe, and then by setting the metal supporting soft rod 602, the probe can be effectively supported, and the probe can be adjusted to any angle without the need for staff to hold it, saving time and effort.

[0029] Working principle: the outer shell of the needle pen 1 is composed of two parts. By providing an external thread 103 and a semi-threaded pipe 104, it is convenient to install the fastening screw sleeve 2 and the end cover 3. By providing a clamping block 105 and a positioning block 5, when the end cover 3 and the semi-threaded pipe 104 are threadedly connected, the clamping block 105 can effectively clamp the positioning block 5, so as to fix the position of the wire 102. When the fastening screw sleeve 2 and the end cover 3 are rotated and disassembled, the two parts of the needle pen 1 can be effectively separated, which is convenient for timely repair or replacement of damaged parts of the probe, saving time and effort. By providing a convex shaft 4, it is convenient to drive the fastening screw sleeve 2 and the end cover 3 to rotate, so that the fastening screw sleeve 2 and the end cover 3 can be easily disassembled.

[0030] Furthermore, when the U-shaped clip 603 is stuck on the outer surface of the needle pen 1, the fastening bolt 604 is passed through the circular hole, and then the fastening bolt 604 is tightened, so that the U-shaped clip 603 can effectively clamp the probe, and then by setting a metal support soft rod 602, the probe can be effectively supported, and the probe can be adjusted to any angle without the need for staff to hold it, saving time and effort.

[0031] Although the 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 voltage internal resistance test probe, comprising a pen (1), a needle body (101) and a wire (102), wherein the needle body (101) is arranged at the front end of the pen (1), the wire (102) is connected to the end of the pen (1), and the wire (102) is electrically connected to the needle body (101), characterized in that, The outer shell of the needle pen (1) is composed of two parts. The outer surface of the front end of the needle pen (1) is provided with an external thread (103). The needle pen (1) is threadedly connected to a fastening screw sleeve (2) via the external thread (103). A support component (6) is provided on the outer side and the lower end of the needle pen (1).

2. The voltage internal resistance test probe according to claim 1, characterized in that, Two semi-threaded pipes (104) are fixedly provided at the end of the needle pen (1); the outer surface of the semi-threaded pipe (104) is threadedly connected to an end cover (3); and a through hole (301) for the wire (102) to pass through is provided in the center of the end cover (3).

3. The voltage internal resistance test probe according to claim 2, characterized in that The inner walls of the two semi-threaded pipes (104) are fixedly provided with clamping blocks (105), and the outer surface of the conductor (102) is fixedly sleeved with a positioning block (5), and the positioning block (5) is located between the two clamping blocks (105).

4. The voltage internal resistance test probe according to claim 3, characterized in that, Convex shafts (4) are fixedly arranged on both sides of the outer surfaces of the fastening screw sleeve (2) and the end cover (3).

5. A voltage internal resistance test probe according to claim 1, characterized in that, The support assembly (6) comprises a base (601), a metal support soft rod (602) and a U-shaped clip (603), and the U-shaped clip (603) is clamped on the outer surface of the needle pen (1).

6. The voltage internal resistance test probe according to claim 5, wherein, The upper end of the metal support soft rod (602) is connected to the U-shaped clamp (603), and the base (601) is arranged at the lower end of the metal support soft rod (602).

7. A voltage internal resistance test probe according to claim 6, wherein Circular holes are provided at the upper ends of both side walls of the U-shaped clamp (603), and fastening bolts (604) are provided at the upper ends of the U-shaped clamp (603) through the circular holes.

8. A voltage internal resistance test probe according to claim 7, characterized in that, The end of the fastening bolt (604) is threadedly connected with a fastening nut (605), and the fastening bolt (604) and the fastening nut (605) are detachable.

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