Telescopic meter pen for insulation resistance meter

Abstract

The utility model relates to the technical field of meter pens, and provides a telescopic meter pen for an insulation resistance meter, comprising a main body assembly comprising a tube body B, a tube body A sleeved in the tube body B, and an insulation tube connected in the tube body A; the stabilizing assembly comprises a plurality of groups of annular rods sleeved with the pipe body B, a plurality of connecting blocks connected to the outer side of the lower portion of the pipe body A, movable grooves formed between the annular rods, a group of grooves connected to the two ends of the middles of the annular rods, and a group of movable plates arranged on the two sides of the grooves; and the connecting assembly is sleeved on the periphery of the insulating tube. According to the technical scheme, the inner side of the pipe body B is tightly attached to the lower end of the outer side of the pipe body A, so that the pipe body A can slide in the pipe body, and the pipe body A shakes while sliding in the pipe body B after multiple times of sliding and long-time use; and an insulating tube is arranged in the tube body A, and the insulating tube slides in the tube body A, so that the phenomenon that the insulating tube shakes while sliding occurs, and the detection result is influenced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of test leads, in particular to a telescopic test lead for an insulation resistance meter. Background Art

[0002] A test lead is a tool used for electrical measurement, usually used to connect an electrical test instrument and a circuit or device under test; it usually consists of two metal probes, one as the positive contact point and the other as the negative contact point.

[0003] After searching, the Chinese authorized patent number CN 219676103 relates to a test lead, wherein a tube body A is slidably sleeved in a tube cavity B above a partition, an insulating tube (8) is slidably sleeved in the tube cavity B, a conductive rod is fixedly connected in the tube cavity A, and a stacked soft wire is provided in the tube cavity C below the partition, and the upper end of the soft wire extends into the tube cavity C above the partition along the through hole B and is electrically connected to the conductive rod; the utility model solves the problem that it is difficult for an operator to contact the pen tip with the effective part to be measured when the object to be measured is located in a narrow area by setting the fixed pen tip of the test lead as a retractable structure and coordinating the setting of the pen tip to extend without affecting the electrical connection of the pen tip to the stacked soft wire.

[0004] In the above-mentioned comparative documents, in order to make the test lead achieve the telescopic effect, tube body A is set inside tube body B, and the inner side of tube body B is tightly fitted with the outer lower end of tube body A, so that tube body A can slide inside the tube body. After sliding multiple times and using for a long time, tube body A is prone to shaking while sliding inside tube body B. At the same time, an insulating tube is set inside tube body A, and the insulating tube can also slide inside tube body A, but after sliding multiple times, it will also slide and shake at the same time, affecting the detection result. Utility Model Content

[0005] The utility model provides a telescopic test lead for an insulation resistance meter, which solves the problem in the above-mentioned prior comparative documents that, in order to enable the test lead to achieve a telescopic effect, a tube body A is arranged inside a tube body B, and the inner side of the tube body B is tightly fitted with the outer lower end of the tube body A, so that the tube body A can slide inside the tube body. After sliding multiple times and being used for a long time, the tube body A is prone to shaking while sliding inside the tube body B; at the same time, an insulating tube is arranged inside the tube body A, and the insulating tube can also slide inside the tube body A, but after sliding multiple times, the insulating tube will also slide and shake at the same time, thereby affecting the detection result.

[0006] The utility model is a telescopic test lead for an insulation resistance meter, comprising:

[0007] The main body assembly includes a tube body B, a tube body A sleeved inside the tube body B, and an insulating tube connected to the inside of the tube body A;

[0008] The stabilizing assembly includes a plurality of groups of annular rods sleeved inside the tube body B, a plurality of connecting blocks connected to the outer side of the lower side of the tube body A, a movable groove arranged between each group of the annular rods, a group of grooves connected to the middle and two ends of each group of the annular rods, and a group of movable plates arranged on both sides of the grooves;

[0009] A connecting component is sleeved on the outer periphery of the insulating tube;

[0010] Furthermore, the upper and lower ends of the movable plate extend to the bottom and top ends of each group of the annular rods, and torsion springs are arranged inside the annular rods on both sides of the groove;

[0011] Specifically, by setting a groove, the tube body A can slide in the groove through the connecting block. When the tube body A slides to a suitable position, the tube body A is rotated. During the rotation, the connecting block pushes the movable plate inward so that the movable plate opens inward, so that the connecting block can be rotated into the movable groove, thereby limiting the sliding tube body A.

[0012] Furthermore, the bottom end of the torsion spring extends to the top end of the movable plate, and the annular rod is connected to the movable plate through the torsion spring;

[0013] Specifically, by providing a torsion spring, the movable plate is pushed by force to open into the movable groove, so that it is convenient for the connecting block and the moving block to move into the movable groove and limit the tube body A after sliding.

[0014] Furthermore, the connection assembly includes a ring block 1 and a ring block 2 sleeved on the outer periphery of the insulating tube, two groups of vertical poles connected to the lower outer sides of the ring block 1 and the ring block 2, and a movable rod sleeved on the top of the vertical pole;

[0015] Furthermore, the inner side of the movable rod is connected to the outer side of the ring block 1 and the ring block 2, and a group of movable shafts are arranged outside the connection between the movable rod and the vertical rod;

[0016] Specifically, by setting the ring block one and the ring buckle two, the insulating tube can be clamped after being extended and retracted; by setting the movable shaft, the ring block can be driven to rotate outward, and after the ring block is removed, the insulating tube can continue to move upward.

[0017] Furthermore, both ends of the ring block one extend into the interior of the ring block two, and a limit rod is provided on the outer side of the connection between the two;

[0018] Specifically, the insulating tube can be limited by setting a limit rod. When the insulating tube extends outward to a suitable position, the outer ring block one and the ring block two are rotated to the inside through the movable rod, so that the ring block one and the ring block two surround the outer periphery of the insulating tube. Then, according to the diameter of the insulating tube, the ring block one is telescopically adjusted inside the ring block two, and then the limit rod is inserted into the connection between the two.

[0019] Furthermore, the main body assembly also includes an end cap sleeved under the tube body B, a connecting wire connected to the bottom end of the end cap, a partition plate arranged at the bottom end of the tube body A, a conductive rod connected to the inside of the insulating tube, and a wire connected to the bottom of the partition plate;

[0020] The top end of the wire is connected to the bottom end of the conductive rod, and the bottom end of the conductive rod extends above the partition plate;

[0021] Specifically, by setting the end cover, the wires at the bottom of the tube body B can be repaired, and the end cover is threadedly connected to the tank body B; the connecting wire is used to connect the tester; the partition plate can separate the tube body A from the wires; the conductive rod is used for detection; and the wires are used to connect the conductive rods and the connecting wires.

[0022] Furthermore, a group of moving blocks are arranged below the connecting block, and the tube body A slides in the groove through the connecting block and the moving block;

[0023] Specifically, by providing a moving block and a connecting block, the tube body A can be limited, and the connecting block is slightly longer than the moving block.

[0024] The working principle and beneficial effects of the utility model are:

[0025] By arranging multiple groups of annular rods on the inner side of the tube body B, a movable groove is formed between each group of annular rods, a group of grooves is arranged in the middle position of the movable groove, and a connecting block and a moving block are arranged at the lower outer side of the tube body A. The tube body A moves in the groove through the connecting block and the moving block. When it moves to a suitable position, the tube body A is rotated, so that the connecting block and the moving block can be rotated into the movable groove, so that the position of the extended tube body A can be limited, and the shaking phenomenon during sliding can be reduced; at the same time, ring block 1 and ring block 2 are arranged at the top of the tube body A to clamp the insulating tube, and at the same time, a group of limiting rods are arranged on the outer side of the connection between the ring block 1 and the ring block 2, so that the insulating tube can be limited to prevent shaking during sliding and reduce the impact on the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0028] Figure 2 For the utility model Figure 1 Schematic diagram of the cross-section structure;

[0029] Figure 3 This is a schematic diagram of the structure of the stabilizing component of the utility model;

[0030] Figure 4 For the utility model Figure 3 The enlarged structural diagram at B in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the tube body A of the utility model;

[0032] Figure 6 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0033] In the figure: 11, tube body B; 12, end cover; 13, connecting wire; 14, tube body A; 15, insulating tube; 16, conductive rod; 17, partition plate; 18, wire; 21, annular rod; 22, connecting block; 221, moving block; 23, movable groove; 24, groove; 25, movable plate; 26, torsion spring; 31, ring block 1; 32, ring block 2; 33, vertical rod; 34, movable rod; 35, movable shaft; 36, limit rod. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figure 1-Figure 5 As shown, this embodiment provides a telescopic test lead for an insulation resistance meter, comprising:

[0036] The main body assembly includes a tube body B11, a tube body A14 sleeved inside the tube body B11, and an insulating tube 15 connected to the inside of the tube body A14;

[0037] The stabilizing assembly includes a plurality of annular rods 21 sleeved inside the tube body B11, a plurality of connecting blocks 22 connected to the outer side of the lower side of the tube body A14, a movable groove 23 arranged between each set of annular rods 21, a set of grooves 24 connected to the middle and both ends of each set of annular rods 21, and a set of movable plates 25 arranged on both sides of the grooves 24;

[0038] The upper and lower ends of the movable plate 25 extend to the bottom and top ends of each set of annular rods 21, and torsion springs 26 are arranged inside the annular rods 21 on both sides of the groove 24;

[0039] The bottom end of the torsion spring 26 extends to the top end of the movable plate 25, and the annular rod 21 is connected to the movable plate 25 through the torsion spring 26;

[0040] A set of moving blocks 221 is arranged below the connecting block 22, and the tube body A14 slides in the groove 24 through the connecting block 22 and the moving blocks 221;

[0041] To understand how to use the stable components, the following steps are published;

[0042] The connecting blocks 22 and the moving blocks 221 on both sides of the tube body A14 slide in the groove 24. When sliding to a suitable position, the tube body A14 is rotated. During the rotation, the connecting blocks 22 and the moving blocks 221 push the movable plate 25 inward, so that the movable plate 25 is opened into the movable groove 23 through the torsion spring 26, and the notches at both ends of the movable groove 23 leak out, so that the connecting blocks 22 and the moving blocks 221 enter the movable groove 23, thereby limiting the position of the sliding tube body A14.

[0043] This step facilitates the positioning of the tube body A14 after it is moved, thereby reducing the occurrence of shaking.

[0044] Example 2

[0045] like Figure 1 , Figure 6 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes a connection assembly including a ring block 1 31 and a ring block 2 32 sleeved on the outer periphery of the insulating tube 15, two groups of vertical rods 33 connected to the lower outer sides of the ring block 1 31 and the ring block 2 32, and a movable rod 34 sleeved on the top of the vertical rod 33;

[0046] The inner side of the movable rod 34 is connected to the outer side of the ring block 1 31 and the ring block 2 32, and a set of movable shafts 35 are arranged outside the connection between the movable rod 34 and the vertical rod 33;

[0047] Both ends of the ring block 1 31 extend into the interior of the ring block 2 32 , and a limit rod 36 is provided on the outer side of the connection between the two;

[0048] To understand how to use the connection components, the following steps are published;

[0049] The two ends of the ring block 1 31 and the ring block 2 32 are generally located on the outside. When the insulating tube 15 is extended outward to a suitable position, the outer ring block 1 31 and the ring block 2 32 are rotated to the inside through the movable rod 34, so that the ring block 1 31 and the ring block 2 32 surround the outer periphery of the insulating tube 15, and then the ring block 1 31 is adjusted to be telescopic inside the ring block 2 32 according to the diameter of the insulating tube 15, and then the limit rod 36 is inserted into the connection between the two.

[0050] In this step, the moved insulating tube 15 can be limited in position.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A telescopic test lead for an insulation resistance meter, characterized in that: include: The main body assembly comprises a tube body B (11), a tube body A (14) sleeved inside the tube body B (11), and an insulating tube (15) connected to the inside of the tube body A (14); A stabilizing assembly, comprising a plurality of groups of annular rods (21) sleeved inside the tube body B (11), a plurality of connecting blocks (22) connected to the lower outer side of the tube body A (14), a movable groove (23) arranged between each group of the annular rods (21), a group of grooves (24) connected to the middle and two ends of each group of the annular rods (21), and a group of movable plates (25) arranged on both sides of the grooves (24); The connecting assembly is sleeved on the outer periphery of the insulating tube (15).

2. The telescopic test lead for an insulation resistance meter according to claim 1, characterized in that: The upper and lower ends of the movable plate (25) extend to the bottom and top of each group of the annular rods (21), and torsion springs (26) are arranged inside the annular rods (21) on both sides of the groove (24).

3. The telescopic test lead for an insulation resistance meter according to claim 2, characterized in that: The bottom end of the torsion spring (26) extends to the top end of the movable plate (25), and the annular rod (21) is connected to the movable plate (25) via the torsion spring (26).

4. The telescopic test lead for an insulation resistance meter according to claim 1, characterized in that: The connection assembly comprises a ring block 1 (31) and a ring block 2 (32) sleeved on the outer periphery of the insulating tube (15), two groups of vertical rods (33) connected to the lower outer sides of the ring block 1 (31) and the ring block 2 (32), and a movable rod (34) sleeved on the top of the vertical rod (33).

5. The telescopic test lead for an insulation resistance meter according to claim 4, characterized in that: The inner side surface of the movable rod (34) is connected to the outer side surfaces of the ring block 1 (31) and the ring block 2 (32), and a group of movable shafts (35) are arranged outside the connection between the movable rod (34) and the vertical rod (33).

6. The telescopic test lead for an insulation resistance meter according to claim 4, characterized in that: Both ends of the ring block one (31) extend into the interior of the ring block two (32), and limiting rods (36) are arranged on the outer sides of the connection between the two.

7. The telescopic test lead for an insulation resistance meter according to claim 1, characterized in that: The main body assembly further comprises an end cover (12) sleeved under the tube body B (11), a connecting wire (13) connected to the bottom end of the end cover (12), a partition plate (17) arranged at the bottom end of the tube body A (14), a conductive rod (16) connected to the inside of the insulating tube (15), and a conductive wire (18) connected to the bottom of the partition plate (17); The top end of the wire (18) is connected to the bottom end of the conductive rod (16), and the bottom end of the conductive rod (16) extends to above the partition plate (17).

8. The telescopic test lead for an insulation resistance meter according to claim 1, characterized in that: A group of moving blocks (221) is arranged below the connecting block (22), and the tube body A (14) slides in the groove (24) through the connecting block (22) and the moving blocks (221).

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