Cable terminal test tool

Abstract

The utility model discloses a cable terminal test tool, comprising a housing used for installing a cable terminal, a rainproof cap arranged on the top of the housing, and a gas pipe. The side wall of the rainproof cap is provided with an exhaust hole used for leading out a high-voltage lead, and the lower portion of the rainproof cap is of an opening structure. One end of the gas conveying pipe is connected with the shell and conveys dry gas into the shell. The cable terminal is installed in the shell and is isolated from external humid air or rainwater, and meanwhile the rainproof cap is arranged above the cable terminal, so that rainwater is prevented from entering the shell from the upper portion. The air delivery pipe continuously delivers dry air into the shell, so that humid air in the shell is quickly exhausted from the exhaust hole, quick drying of the cable terminal and the surrounding environment thereof is realized, and interference of rainy days or humid environments on cable terminal tests is prevented.

Description

Technical Field

[0001] The utility model relates to the field of power equipment, in particular to a cable terminal test tool. Background Art

[0002] With the country's continued strengthening of power transmission and distribution network construction, the construction of high-voltage transmission lines has become a key development direction for the power industry. Currently, my country is vigorously constructing transmission lines with voltage levels of 110kV, 220kV, 500kV, and even higher. The construction of these lines presents numerous challenges in the design and application of cable terminals. Testing and maintenance of cable terminals are particularly challenging in humid or rainy environments. The lack of effective moisture-proofing measures often makes it difficult to ensure test accuracy and equipment safety. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and to provide a cable terminal test tool that can effectively prevent moisture intrusion in a humid or rainy environment and ensure the reliability and safety of the cable terminal test.

[0004] The utility model provides a cable terminal test tool, comprising a housing for installing a cable terminal, and is characterized in that it also includes:

[0005] A rain cap is provided on the top of the shell, the side wall of the rain cap is provided with an exhaust hole for leading out the high-voltage lead, and the bottom of the rain cap is an opening structure;

[0006] A gas pipe, one end of which is connected to the shell, is used to transport gas into the shell.

[0007] In one embodiment, the shell is assembled from a base, a support, at least one connecting section and a top cover.

[0008] In one embodiment, the connecting section has a protrusion at the upper end and a slot at the lower end, the protrusion matches the slot, and adjacent connecting sections are connected by snapping together the protrusion and the slot.

[0009] In one embodiment, the protrusion is provided on a side of the top end of the connecting section close to the cable terminal.

[0010] In one embodiment, the base is provided with a fixing opening for installing a cable terminal.

[0011] In one embodiment, the top cover has an opening, and the opening is communicated with the interior of the rain cap.

[0012] In one embodiment, the gas is dry air or insulating gas.

[0013] The cable terminal test fixture of the technical solution of the present invention includes a shell for installing the cable terminal, a rainproof cap arranged on the top of the shell, and an air pipe. The side wall of the rainproof cap is provided with an exhaust hole for leading out the high-voltage lead, and the bottom of the rainproof cap is an opening structure. One end of the air pipe is connected to the shell to transport dry gas to the inside of the shell. The cable terminal is installed in the shell and isolated from the external humid air or rainwater. At the same time, a rainproof cap is arranged on the top to prevent rainwater from entering the shell from above. The air pipe continuously transports dry gas into the shell, so that the humid gas inside the shell is quickly discharged, thereby achieving rapid drying of the cable terminal and its surrounding environment, and preventing rainy days or humid environments from interfering with the cable terminal test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 This is a front view of an embodiment of a cable terminal test fixture of the present utility model;

[0016] Description of Figure Numbers:

[0017] Label name Label name Label name 1 case 13 Connecting segment 21 High voltage lead 1a Opening 13a bulge 3 rain hat 1b Fixed port 13b card slot 3a exhaust vents 11 base 14 Top cover 4 gas pipeline 12 Support 2 Cable terminals

[0018] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0022] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or solutions that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] With the country's continued strengthening of power transmission and distribution network construction, the construction of high-voltage transmission lines has become a key development direction for the power industry. Currently, my country is vigorously constructing transmission lines with voltage levels of 110kV, 220kV, 500kV, and even higher. The construction of these lines presents numerous challenges in the design and application of cable terminals. Testing and maintenance of cable terminals are particularly challenging in humid or rainy environments. The lack of effective moisture-proofing measures often makes it difficult to ensure test accuracy and equipment safety.

[0024] This utility model proposes a cable terminal test tool. Figure 1 The cable terminal test tool includes a shell 1, which is used to install the cable terminal 2, and also includes a rain cap 3, which is arranged on the top of the shell 1. The side wall of the rain cap 3 is provided with an exhaust hole 3a for leading out the high-voltage lead 21, and the bottom of the rain cap 3 is an opening structure; a gas pipe 4, one end of which is connected to the shell 1, is used to transport gas to the inside of the shell 1.

[0025] In this embodiment, the shell 1 is made of an insulating material, and optionally, PE, PP, PVE, PVP or other insulating materials can be used. The shell 1 is a cylindrical structure, and its top, side walls and bottom enclose a accommodating space. The cable terminal 2 is installed in the accommodating space and isolated from the external humid air or rainwater to prevent rainy days or humid environments from interfering with the test of the cable terminal 2. An air inlet is provided on the side wall of the shell 1, and one end of the air pipe 4 is connected to the air inlet and the other end is connected to the drying device. The drying device can continuously supply dry gas to the accommodating space through the air pipe 4, so that the humid gas inside the shell 1 is quickly discharged, thereby achieving rapid drying of the cable terminal 2 and its surrounding environment, and ensuring that the cable terminal 2 is always in a dry test environment. A rain cap 3 is provided on the top of the shell 1. The upper end of the rain cap 3 is a closed structure and the lower end has an open structure, which effectively prevents rainwater from entering the accommodating space from above the shell 1. Optionally, the rain cap 3 can be a cylindrical structure or a frustum structure. A vent 3a is formed in the side wall of the rain cap 3. The cable terminal 2 has a high-voltage lead 21, which extends out of the cable terminal test fixture through the vent 3a. Simultaneously, when the drying device delivers dry air into the interior of the housing 1, moist air within the housing 1 is discharged outward through the vent 3a.

[0026] Further, please refer to Figure 1 The shell 1 is assembled from a base 11, a support 12, at least one connecting section 13 and a top cover 14.

[0027] In this embodiment, the shell 1 is assembled from bottom to top by a base 11, a support 12, at least one connecting section 13 and a top cover 14. The base 11 is used to support and fix the upper support 12, and the base 11 can be set as a circular or square structure. The base 11 and the support 12 can be set as an integrated structure or separately. The support 12 is a hollow cylindrical structure, and the top and bottom of the support 12 are both open, and the bottom of the support 12 is fixedly connected to the base 11. The shell 1 has at least one connecting section 13, and the connecting section 13 is arranged between the top cover 14 and the support 12. Different numbers of connecting sections 13 are connected in series to adapt to different height requirements of the shell 1, and the size of the shell 1 can be changed and adjusted according to the height requirements of different types of cable terminals in actual use. At the same time, this multi-section assembled shell 1 structure is convenient for disassembly and transportation in actual use.

[0028] Further, please refer to Figure 1 The upper end of the connecting section 13 has a protrusion 13a and the lower end has a slot 13b. The protrusion 13a and the slot 13b match each other, and adjacent connecting sections 13 are connected by the protrusion 13a and the slot 13b.

[0029] Specifically, the side of the support 12 facing the connecting section 13 has a support protrusion that matches the slot 13b of the connecting section 13, and the side of the top cover 14 facing the connecting section 13 has a top cover slot that matches the protrusion 13a of the connecting section 13. Adjacent connecting sections 13 are connected by the matching protrusions 13a and slots 13b. The connecting section 13 adjacent to the support 12 is secured to the support 12 by the slot 13b and the support protrusion. The connecting section 13 adjacent to the top cover 14 is secured to the connecting section 13 by the protrusion 13a and the top cover slot.

[0030] This utility model proposes an embodiment, please refer to Figure 1 The protrusion 13 a is arranged on one side of the top end of the connecting section 13 close to the cable terminal 2 .

[0031] Specifically, the top of the connecting section 13 has a continuously arranged protrusion 13a, and the protrusion 13a is surrounded to form a hollow cylindrical structure. The protrusion 13a is arranged on the side of the top of the connecting section 13 close to the accommodating space. The card slot 13b is provided in conjunction with the protrusion 13a. The protrusion 13a and the card slot 13b are engaged with each other to form a snap-fit surface, and the side of the snap-fit surface close to the accommodating space is higher than the side of the snap-fit surface away from the accommodating space. It can be understood that the snap-fit surface of the support 12 and the connecting section 13, the snap-fit surface of the top cover 14 and the connecting section 13, and the snap-fit surface of the connecting section 13 and the connecting section 13 are all higher on the side close to the accommodating space than on the side away from the accommodating space. This prevents rainwater from entering the accommodating space through the assembly snap-fit of the shell 1.

[0032] This utility model proposes an embodiment, please refer to Figure 1 The base 11 is provided with a fixing opening 1b for installing the cable terminal 2.

[0033] Specifically, the bottom end of the cable terminal 2 has a terminal base, onto which a base 11 is mounted. Base 11 defines a fixing opening 1b, which fits around the outer perimeter of the cable terminal 2. The size of the fixing opening 1b matches the outer perimeter of the cable terminal 2. Preferably, a seal is provided at the fixing opening 1b to prevent moisture from entering the housing through the fixing opening 1b.

[0034] Further, please refer to Figure 1 The top cover 14 has an opening 1a, which is connected to the interior of the rain cap 3.

[0035] Specifically, top cover 14 has an opening 1a, and the bottom of rain cap 3 is open. High-voltage lead 21 extends from the accommodating space through opening 1a into rain cap 3 and then exits through vent 3a. When drying the interior of the cable terminal test fixture, gas enters the accommodating space through gas pipe 4, drying the cable terminal 2. The moist gas flows through opening 1a into rain cap 3 and is then discharged through vent 3a.

[0036] Further, please refer to Figure 1 The gas introduced into the gas pipe 4 is dry air or insulating gas. Preferably, the gas can be heated and then transported to the accommodating space to improve the drying efficiency of the internal environment of the test tooling.

[0037] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A cable terminal test fixture, comprising a housing (1), wherein the housing (1) is used to install a cable terminal (2), and is characterized in that: Also includes: A rainproof cap (3) is provided on the top of the housing (1), a side wall of the rainproof cap (3) is provided with an exhaust hole (3a) for leading out a high-voltage lead (21), and the bottom of the rainproof cap (3) is an opening structure; A gas delivery pipe (4) is connected to the shell (1) at one end and is used to deliver gas to the interior of the shell (1).

2. The cable terminal test fixture according to claim 1, characterized in that: The housing (1) is assembled from a base (11), a support (12), at least one connecting section (13) and a top cover (14).

3. The cable terminal test fixture according to claim 2, characterized in that: The connecting section (13) has a protrusion (13a) at its upper end and a slot (13b) at its lower end. The protrusion (13a) and the slot (13b) match each other, and adjacent connecting sections (13) are connected by snapping together through the protrusion (13a) and the slot (13b).

4. The cable terminal test fixture according to claim 3, characterized in that: The protrusion (13a) is arranged on a side of the top end of the connecting section (13) close to the cable terminal (2).

5. The cable terminal test tool as claimed in claim 2, characterized in that: The base (11) is provided with a fixing opening (1b) for installing a cable terminal (2).

6. The cable terminal test fixture according to claim 2, characterized in that: The top cover (14) has an opening (1a), and the opening (1a) is communicated with the interior of the rainproof cap (3).

7. The cable terminal test tool according to claim 1, characterized in that: The gas is dry air or insulating gas.

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