Cable insulation detection device

Abstract

The utility model discloses a cable insulation detection device, and relates to the technical field of cable insulation. The universal meter comprises a universal meter body, two meter pen end portions of the universal meter body are respectively and electrically connected with alligator clips clamped on a cable copper core and a water absorption flexible structure sleeved on the outer side of a cable insulation layer, and the water absorption flexible structure is fixed on the inner side wall of a lantern ring made of insulation materials. According to the utility model, the alligator clip and the water absorption flexible structure are electrically connected to the end parts of the two meter pens of the universal meter body respectively, so that when the insulation layer of the cable is damaged, the two meter pens can be contacted with the copper core in the cable under the action of the water absorption flexible structure, and then the resistance value can be rapidly detected to judge the insulativity.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable insulation, in particular to a cable insulation detection device. Background Art

[0002] Multimeter, also known as multiplexer, multimeter, three-meter, complex meter, etc., is an indispensable measuring instrument in power electronics and other departments. It is generally used to measure voltage, current and resistance. In the long-term use of cables, the insulation performance of the cable insulation layer is poor due to aging and damage of the cable insulation layer, which may lead to serious accidents. It is necessary to test the insulation performance of the cable. For single-strand cable, when using a multimeter for testing, connect the two test leads of the multimeter body to the core of the cable, immerse the single-strand cable in the conductive liquid, and insert the other test lead of the multimeter body into the conductive liquid for testing. However, for the installed cable, it is inconvenient to immerse the installed cable in the conductive liquid in actual use to test the insulation performance of the cable. Utility Model Content

[0003] The utility model aims to provide a cable insulation detection device, which solves the problems raised in the prior art by electrically connecting the ends of two test leads of a multimeter body with an alligator clip and a water-absorbing flexible structure respectively.

[0004] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0005] The utility model discloses a cable insulation detection device, comprising a multimeter body, two test probe ends of the multimeter body are respectively electrically connected with an alligator clip clamped on a cable copper core and a water-absorbing flexible structure sleeved on the outside of a cable insulation layer, and the water-absorbing flexible structure is fixed on the inner side wall of a sleeve ring made of an insulating material.

[0006] Furthermore, one end of the alligator clip is connected to a wire, the end of the wire is electrically connected to a socket A for inserting a test lead, and a metal part A in contact with the tip of the test lead is arranged inside the socket A.

[0007] Furthermore, a socket B is provided through the ring, a metal piece B in contact with the tip of the test lead is provided inside the socket B, and the metal piece B is in contact with the water-absorbing flexible structure.

[0008] Furthermore, a water storage box is fixed to the outer wall of the ring, a water replenishment port is arranged on the water storage box, and a sealing cover is arranged on the water replenishment port; an annular flow channel connected to the water storage box is arranged inside the ring, and a water seepage hole connected to the annular flow channel is arranged on the inner wall of the ring.

[0009] Furthermore, the ring includes a semi-ring A and a semi-ring B that cooperate with each other, and both semi-ring A and semi-ring B are provided with an arc-shaped flow channel connected to the water storage box, and both ends of the arc-shaped flow channel on the semi-ring A are respectively connected to a plug, and a sealing layer is fixed to the end of the plug; the two ends of the arc-shaped flow channel on the semi-ring B are respectively used for inserting the plug.

[0010] Furthermore, the water-absorbing flexible structure includes an arc structure A and an arc structure B which are respectively arranged on the inner walls of the semi-ring A and the semi-ring B; and the water seepage holes are arranged on the inner walls of the semi-ring A and the semi-ring B.

[0011] Furthermore, protrusions A are provided at both ends of the semi-ring A, protrusions B are provided at both ends of the semi-ring B, and locking bolts with ends connected to the protrusions A are provided through the protrusions B.

[0012] Furthermore, the water storage box is arranged on the outside of the semi-ring A, and the socket B is arranged on the outside of the semi-ring B.

[0013] Furthermore, the water-absorbing flexible structure is a sponge block or a cotton cloth block.

[0014] Furthermore, a meter head is provided in the inner cavity of the multimeter body, and two test leads are provided at the bottom of the multimeter body, and the test leads are electrically connected to the positive and negative poles of the meter head respectively.

[0015] The utility model has the following beneficial effects:

[0016] The utility model electrically connects the alligator clip and the water-absorbing flexible structure to the ends of the two test pens of the multimeter body respectively, so that when the insulation layer of the cable is damaged, the water-absorbing flexible structure can be used to make the two test pens contact with the copper core inside the cable, thereby quickly detecting the resistance value to determine the insulation.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The structure of the water-absorbing flexible structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 for Figure 1 The main view;

[0021] Figure 3 The structure of the water-absorbing flexible structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 4 for Figure 3 The main view;

[0023] Figure 5 This is a schematic diagram of the structure of the alligator clip of the utility model. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in 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.

[0025] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] See also Figure 1-2 As shown, the utility model is a cable insulation detection device, comprising a multimeter body, a meter head is provided in the inner cavity of the multimeter body, and two test leads electrically connected to the positive and negative poles of the meter head are provided at the bottom of the multimeter body; and the ends of the two test leads are electrically connected to the crocodile clip 5 clamped on the copper core of the cable 100, and the water-absorbing flexible structure 3 sleeved on the outside of the insulation layer of the cable 100; when in use, the cable 100 to be detected is powered off, and then the crocodile clip 5 is controlled to clamp on the copper core of the cable 100, and the water-absorbing flexible structure 3 is controlled to sleeve on the outside of the insulation layer of the cable 100.

[0027] Based on the above, it is convenient to control the connection between the test lead and the alligator clip 5 and the water-absorbing flexible structure 3 during use; Figure 5 A wire 50 is connected to the provided alligator clip 5, and the end of the wire 50 is electrically connected to a socket A51 for inserting a test lead, and a metal part A in contact with the tip of the test lead is arranged inside the socket A51; at the same time, the water-absorbing flexible structure 3 is fixed on the inner wall of a ring 1 made of an insulating material, and a socket B2 is penetrated through the ring 1, and a metal part B in contact with the tip of the test lead is arranged inside the socket B2, and the metal part B is in contact with the water-absorbing flexible structure 3.

[0028] It can be known that, in the present application, a water storage box 4 is fixed on the outer wall of the ring 1, a water replenishing port is arranged on the water storage box 4, and a sealing cover 41 is arranged on the water replenishing port; an annular flow channel connected with the water storage box 4 is arranged inside the ring 1, and a seepage hole connected with the annular flow channel is arranged on the inner wall of the ring 1; and when in use, the water storage box 4 is used to continuously inject water into the annular flow channel, and the water seepage effect of the seepage hole is used to keep the water-absorbing flexible structure 3 in a moist state.

[0029] In a possible implementation, in order to facilitate actual installation, as Figure 3-4 The provided sleeve 1 is fixedly connected by a half ring A11 and a half ring B10 which cooperate with each other by a locking bolt 102, and protrusions A111 are arranged at both ends of the half ring A11, and protrusions B101 are arranged at both ends of the half ring B10, and the locking bolt 102 penetrates the protrusion B101 and is threadedly connected with the threaded hole arranged on the protrusion A111.

[0030] Specifically, in actual applications, an arc-shaped flow channel is provided inside the semi-ring A11 and the semi-ring B10, the water storage box 4 is provided on the outside of the semi-ring A11 and communicated with the arc-shaped flow channel, and the socket B2 is provided on the outside of the semi-ring B10; and the two ends of the arc-shaped flow channel on the semi-ring A11 are respectively connected with a plug 112, and a sealing layer 113 is fixed on the end of the plug 112; the two ends of the arc-shaped flow channel on the semi-ring B10 are respectively used for the plug hole 103 for inserting the plug 112; the cooperation of the plug 112 and the plug hole 103 facilitates the control of the arc-shaped flow channels provided in the semi-ring A11 and the semi-ring B10 to be connected.

[0031] The water-absorbing flexible structure 3 includes an arc structure A31 and an arc structure B30 respectively arranged on the inner walls of the semi-ring A11 and the semi-ring B10; the water seepage holes are arranged on the inner walls of the semi-ring A11 and the semi-ring B10; the water-absorbing flexible structure 3 is a sponge block or a cotton cloth block.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cable insulation detection device, characterized in that: The multimeter comprises a multimeter body, the two test probe ends of the multimeter body are respectively electrically connected to an alligator clip (5) clamped on the copper core of a cable (100), and a water-absorbing flexible structure (3) sleeved on the outside of the insulation layer of the cable (100), and the water-absorbing flexible structure (3) is fixed on the inner side wall of a sleeve ring (1) made of an insulating material.

2. A cable insulation detection device according to claim 1, characterized in that: One end of the alligator clip (5) is connected to a wire (50), the end of the wire (50) is electrically connected to a socket A (51) for inserting a test lead, and a metal piece A in contact with the tip of the test lead is arranged inside the socket A (51).

3. A cable insulation detection device according to claim 1, characterized in that: The sleeve (1) is provided with a plug sleeve B (2) penetrating therethrough, a metal piece B in contact with the tip of a test lead is provided inside the plug sleeve B (2), and the metal piece B is in contact with the water-absorbing flexible structure (3).

4. A cable insulation detection device according to claim 3, characterized in that: A water storage box (4) is fixed to the outer wall of the collar (1), a water supply port is provided on the water storage box (4), and a sealing cover (41) is provided on the water supply port; an annular flow channel connected to the water storage box (4) is provided inside the collar (1), and a water seepage hole connected to the annular flow channel is provided on the inner wall of the collar (1).

5. A cable insulation detection device according to claim 4, characterized in that: The sleeve (1) comprises a semi-ring A (11) and a semi-ring B (10) which cooperate with each other, wherein the semi-ring A (11) and the semi-ring B (10) are both provided with arc-shaped flow channels which are connected with the water storage box (4), and the two ends of the arc-shaped flow channel on the semi-ring A (11) are respectively connected with insert pipes (112), and the ends of the insert pipes (112) are fixed with sealing layers (113); Both ends of the arc-shaped flow channel on the semi-ring B (10) are respectively used as insertion holes (103) for inserting the insertion tube (112).

6. A cable insulation detection device according to claim 5, characterized in that: The water-absorbing flexible structure (3) comprises an arc-shaped structure A (31) and an arc-shaped structure B (30) respectively arranged on the inner walls of the semi-ring A (11) and the semi-ring B (10); The water seepage holes are arranged on the inner walls of the semi-ring A (11) and the semi-ring B (10).

7. A cable insulation detection device according to claim 5, characterized in that: The two ends of the half ring A (11) are provided with protrusions A (111), and the two ends of the half ring B (10) are provided with protrusions B (101). The protrusions B (101) are penetrated by locking bolts (102) whose ends are connected to the protrusions A (111).

8. A cable insulation detection device according to claim 5, characterized in that: The water storage box (4) is arranged on the outside of the semi-ring A (11), and the socket B (2) is arranged on the outside of the semi-ring B (10).

9. A cable insulation detection device according to claim 1, characterized in that: The water-absorbing flexible structure (3) is a sponge block or a cotton cloth block.

10. A cable insulation detection device according to claim 1, characterized in that: The inner cavity of the multimeter body is provided with a meter head, and the bottom of the multimeter body is provided with two test leads, and the test leads are electrically connected to the positive and negative poles of the meter head respectively.

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