Plug-in test tool and method for cable electrical test

Abstract

The invention relates to a plug type test tool for a cable electrical test, which comprises a steering bracket, a plug system and a voltage withstanding system, and is characterized in that one end of the plug system is connected to the end part of a cable to be tested, the other end of the plug system is connected with the voltage withstanding system in a pluggable manner, and the voltage withstanding system is mounted on the steering bracket and is used for adjusting a rotation angle under the driving of the steering bracket; the plugging system comprises a pushing sleeve, a locking screw, a stress cone and a contact, the voltage-withstanding system comprises an insulating tube, a voltage-withstanding tube and a power receiving end, and the steering bracket comprises a bracket main body, a steering shaft, a transmission rod, a driven shaft, an arc-shaped gear rod, a retaining head and a hand-cranking handle. Compared with the prior art, the device has the advantages that modular design is adopted, rapid assembly and component replacement are facilitated, the device is easy to carry and deploy, the structure is stable and reliable, and the electrical test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of electrical test tools, and in particular to a plug-in test tool and method for cable electrical testing. Background Art

[0002] With the acceleration of industrialization, the demand for portable electrical test equipment and tools is growing. Modern industrial users prefer light, compact and easy-to-install tools, while traditional bulky and cumbersome tools are gradually being eliminated by the market.

[0003] For example, the utility model disclosed in the publication number CN209327503U discloses a 220kV cable accessory factory test device. Due to the limitations of its design and manufacturing technology, traditional electrical test tooling equipment is bulky and has many components, which increases the overall weight and makes it difficult to carry and move. During the installation process, these devices often require precise adjustments and complex fixing procedures, which consumes a lot of time and human resources. In addition, the installation interface of traditional equipment is not intuitive enough, the operation is complicated, and professional personnel are required to operate and maintain it, which increases the threshold for use. These factors together lead to the cumbersome installation of traditional tooling equipment. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a plug-in test tool and method for cable electrical testing which has fast assembly, compact structure, is easy to carry and deploy, and improves test efficiency.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A plug-in test fixture for cable electrical testing comprises a steering bracket, a plug-in system and a pressure-resistant system. One end of the plug-in system is connected to the end of a cable to be tested, and the other end can be plugged and connected to the pressure-resistant system. The pressure-resistant system is installed on the steering bracket and is used to adjust the rotation angle driven by the steering bracket.

[0007] Furthermore, the plug-in system includes a push sleeve, a locking screw, a stress cone and a contact. The push sleeve is connected to the end of the cable to be tested. The outer side of the push sleeve is detachably connected to the pressure-resistant system through a locking screw. The core of the cable to be tested passes through the push sleeve and is connected to the stress cone and the contact in sequence.

[0008] Furthermore, the voltage-resistant system includes an insulating tube, a voltage-resistant tube and a power receiving terminal. The insulating tube and the power receiving terminal are both installed in the voltage-resistant tube and are respectively located at two ends of the voltage-resistant tube. The stress cone is located in the insulating tube. The contact is connected to one end of the power receiving terminal, and the other end of the power receiving terminal extends out of the voltage-resistant tube for connecting electrical testing equipment.

[0009] Furthermore, the insulating tube and the pressure-resistant tube are filled with insulating gas.

[0010] Furthermore, the insulating gas is pre-filled.

[0011] Furthermore, the steering bracket includes a bracket body, a steering shaft, a transmission rod, a driven shaft, a curved gear rod, a stop head and a hand crank, the bracket body is connected to the pressure-resistant system through the steering shaft, one end of the transmission rod is connected to the steering shaft, and the other end is connected to the driven shaft, one end of the curved gear rod is connected to the bracket body through the hand crank, and the other end is connected to the driven shaft, the hand crank is connected to the curved gear rod through a gear drive, and is used to drive the curved gear rod to rotate along an arc, thereby driving the steering shaft and the pressure-resistant system connected to the steering shaft to rotate through the transmission rod; the stop head is installed at the end of the curved gear rod away from the driven shaft.

[0012] Furthermore, the support body is a tripod, and the steering axis is located at the top of the tripod.

[0013] Furthermore, the crank handle is located in the middle of the bracket body.

[0014] Furthermore, the steering bracket is a pre-assembled integrated structure.

[0015] The present invention also provides a method for installing a plug-in test tool for a cable electrical test as described above, comprising the following steps:

[0016] Install the pre-assembled steering bracket to the test height and adjust it to the appropriate angle;

[0017] Install the pressure-resistant system on the steering bracket at a corresponding angle to form a linkage steering structure;

[0018] Insert the plug-in system at the end of the cable to be tested into the voltage-withstand system and ensure that the electrical connection is completed before conducting the electrical test.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] (1) The present invention uses the push sleeve and locking screw of the plug-in system, in conjunction with the pressure-resistant tube of the pressure-resistant system, to achieve rapid fixation and removal of the pressure-resistant tube through push-pull and screw fixation. This design significantly improves the assembly and disassembly efficiency of the tooling, while simplifying the operation process, allowing users to easily prepare for electrical testing and subsequent cleaning work.

[0021] (2) The steering bracket of the present invention realizes the steering adjustment of the pressure-resistant tube through the transmission of the hand crank handle, arc-shaped gear rod, driven shaft, transmission rod and steering shaft, and can quickly adjust the angle of the pressure-resistant tube according to specific application requirements, which is convenient to operate;

[0022] (3) The compact design of the steering bracket of the present invention and the lightweight treatment of the pressure-resistant tube make the entire tooling easy to carry and operate. This design takes into account the portability requirements of users, allowing the tooling to be easily transferred between different test sites, while reducing the labor intensity of operators and improving the practicality and work efficiency of the tooling.

[0023] (4) The present invention can pre-fill insulating gas between the insulating tube and the pressure-resistant tube in the factory, eliminating the need for on-site filling and deflation. This improvement not only reduces the potential impact on the environment, but also simplifies on-site operations, reduces the complexity and risks of operations, and improves the on-site applicability and environmental friendliness of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a plug-in test fixture for cable electrical testing provided in an embodiment of the present invention;

[0025] In the figure, 1, push sleeve, 2, locking screw, 3, stress cone, 4, contact, 5, insulating tube, 6, pressure-resistant tube, 7, power receiving terminal, 8, steering shaft, 9, transmission rod, 10, driven shaft, 11, arc gear rod, 12, stop head, 13, hand crank handle, 14, steering bracket. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Example 1

[0031] like Figure 1 As shown, this embodiment provides a plug-in test fixture for cable electrical testing, including a steering bracket, a plug-in system and a pressure-resistant system. One end of the plug-in system is connected to the end of the cable to be tested, and the other end can be plugged in and connected to the pressure-resistant system. The pressure-resistant system is installed on the steering bracket and is used to adjust the rotation angle driven by the steering bracket.

[0032] Specifically, the plug-in system includes a push sleeve 1, a locking screw 2, a stress cone 3 and a contact 4. The push sleeve 1 is connected to the end of the cable to be tested. The outer side of the push sleeve 1 is detachably connected to the pressure-resistant system through the locking screw 2. The core of the cable to be tested passes through the push sleeve 1 and is connected to the stress cone 3 and the contact 4 in sequence.

[0033] The voltage-resistant system includes an insulating tube 5, a voltage-resistant tube 6 and a power receiving terminal 7. The insulating tube 5 and the power receiving terminal 7 are both installed in the voltage-resistant tube 6 and are respectively located at two ends of the voltage-resistant tube 6. The stress cone 3 is located in the insulating tube 5. The contact 4 is connected to one end of the power receiving terminal 7. The other end of the power receiving terminal 7 extends out of the voltage-resistant tube 6 for connecting electrical test equipment.

[0034] The insulating tube 5 and the pressure-resistant tube 6 are filled with insulating gas, which can be pre-filled when the pressure-resistant system is prepared in the factory to reduce the on-site filling and degassing process and reduce the impact on the environment.

[0035] The steering bracket includes a bracket body 14, a steering shaft 8, a transmission rod 9, a driven shaft 10, a curved gear rod 11, a stop head 12 and a hand crank 13. The bracket body 14 is connected to the pressure-resistant system through the steering shaft 8. One end of the transmission rod 9 is connected to the steering shaft 8, and the other end is connected to the driven shaft 10. One end of the curved gear rod 11 is connected to the bracket body 14 through the hand crank 13, and the other end is connected to the driven shaft 10. The hand crank 13 is connected to the curved gear rod 11 through a gear drive, and is used to drive the curved gear rod 11 to rotate along an arc, thereby driving the steering shaft 8 and the pressure-resistant system connected to the steering shaft 8 to rotate through the transmission rod 9; the stop head 12 is installed at one end of the curved gear rod 11 away from the driven shaft 10.

[0036] Optionally, the support body 14 is a tripod, the steering shaft 8 is located at the top of the tripod, and the hand crank 13 is located in the middle of the support body 14 .

[0037] There is no specific limitation on the form of the bracket body 14 and the positions of the steering shaft 8 and the hand crank 13 , as long as they are sufficient to support and adjust the angle of the pressure-resistant tube 6 .

[0038] When in use, by rotating the hand crank 13, the arc-shaped gear rod 11 rotates along the arc through the hand crank 13, thereby driving the transmission rod 9 to rotate through the driven shaft, thereby achieving the angle adjustment of the steering shaft 8, and then achieving the angle adjustment of the pressure-resistant tube 6 installed on the steering shaft 8.

[0039] Optionally, the steering bracket is assembled as a whole in the factory, which is convenient for subsequent use and carrying.

[0040] This plug-in test fixture adopts a modular design, which is convenient for quick assembly and replacement of parts, while moving towards integration, such as built-in insulating tubes and insulating gas, which improves the efficiency and ease of use of the equipment. The design focuses on lightness and compactness, making the equipment easy to carry and deploy, and can be deployed quickly, simplifying the installation process and operating interface, and lowering the threshold for use. In addition, while pursuing portability, this tooling equipment also emphasizes safety and durability, using high-quality materials and precision manufacturing processes to ensure that the equipment is stable and reliable. Environmental protection and sustainability are also design considerations. By pre-filling the insulating gas in the equipment, there is no need for repeated charging and discharging, which reduces environmental impact.

[0041] Example 2

[0042] This embodiment provides a method for installing the plug-in test tool for cable electrical testing of Embodiment 1, comprising the following steps:

[0043] Install the pre-assembled steering bracket to the test height and adjust it to the appropriate angle;

[0044] Install the pressure-resistant system on the steering bracket at a corresponding angle to form a linkage steering structure;

[0045] Insert the plug-in system at the end of the cable to be tested into the voltage-withstand system and ensure that the electrical connection is completed before conducting the electrical test.

[0046] The specific working process is as follows:

[0047] First, the pre-assembled steering bracket 14 needs to be installed on the test site and adjusted to a suitable position. During this process, the hand crank 13 causes the arc gear rod 11 and the driven shaft 10, and then drives the transmission rod 9 to rotate, so as to achieve flexible adjustment of the steering bracket. Then, the pressure-resistant tube 6 is connected to the steering bracket through the steering shaft 8 to form a stable linkage steering structure.

[0048] When connecting the pressure-resistant tube 6, the plug-in system of the tooling plays an important role. Through the cooperation of the push sleeve 1 and the locking screw 2, the plug-in system can be quickly fixed on the pressure-resistant tube 6, and the connection between the stress cone 3 and the contact 4 ensures the reliability of the electrical connection. This quick locking mechanism not only improves the assembly and disassembly efficiency of the tooling, but also makes the entire operation process more user-friendly.

[0049] Since the insulating gas has been pre-filled between the insulating tube 5 and the pressure-resistant tube 6 in the factory, the filling and degassing process is no longer required on site, which greatly reduces the impact on the environment and simplifies the on-site operation steps. After completing these steps, the tooling is ready for electrical testing.

[0050] After the test is completed, the disassembly process is also simple and quick. Just unlock the locking screw 2 and push back the push sleeve 1, and the pressure tube 6 can be easily removed from the steering bracket for subsequent storage or transfer. The compact design of the steering bracket and the lightweight of the pressure tube make the entire tooling easy to carry and operate, further improving the portability and practicality of the tooling.

[0051] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A plug-in test fixture for cable electrical testing, characterized in that: It includes a steering bracket, a plug-in system and a pressure-resistant system. One end of the plug-in system is connected to the end of the cable to be tested, and the other end can be plugged and connected to the pressure-resistant system. The pressure-resistant system is installed on the steering bracket and is used to adjust the rotation angle driven by the steering bracket.

2. A plug-in test fixture for cable electrical testing according to claim 1, characterized in that: The plug-in system comprises a push sleeve (1), a locking screw (2), a stress cone (3) and a contact (4); the push sleeve (1) is connected to the end of the cable to be tested; the outer side of the push sleeve (1) is detachably connected to the pressure-resistant system via the locking screw (2); and the core of the cable to be tested passes through the push sleeve (1) and is sequentially connected to the stress cone (3) and the contact (4).

3. A plug-in test fixture for cable electrical testing according to claim 2, characterized in that: The pressure-resistant system comprises an insulating tube (5), a pressure-resistant tube (6) and a power receiving terminal (7). The insulating tube (5) and the power receiving terminal (7) are both installed in the pressure-resistant tube (6) and are respectively located at two ends of the pressure-resistant tube (6). The stress cone (3) is located in the insulating tube (5). The contact (4) is connected to one end of the power receiving terminal (7). The other end of the power receiving terminal (7) extends out of the pressure-resistant tube (6) for connecting to electrical test equipment.

4. A plug-in test fixture for cable electrical testing according to claim 3, characterized in that: Insulating gas is filled between the insulating tube (5) and the pressure-resistant tube (6).

5. A plug-in test fixture for cable electrical testing according to claim 4, characterized in that: The insulating gas is pre-filled.

6. The plug-in test fixture for cable electrical testing according to claim 1, characterized in that: The steering bracket comprises a bracket body (14), a steering shaft (8), a transmission rod (9), a driven shaft (10), an arc-shaped gear rod (11), a stopper (12) and a hand crank (13); the bracket body (14) is connected to a pressure-resistant system via the steering shaft (8); one end of the transmission rod (9) is connected to the steering shaft (8) and the other end is connected to the driven shaft (10); one end of the arc-shaped gear rod (11) is connected to the bracket body (14) via the hand crank (13) and the other end is connected to the driven shaft (10); the hand crank (13) is connected to the arc-shaped gear rod (11) via a gear drive and is used to drive the arc-shaped gear rod (11) to rotate along an arc, thereby driving the steering shaft (8) and the pressure-resistant system connected to the steering shaft (8) to rotate via the transmission rod (9); the stopper (12) is installed at one end of the arc-shaped gear rod (11) away from the driven shaft (10).

7. A plug-in test fixture for cable electrical testing according to claim 6, characterized in that: The support body (14) is a tripod, and the steering shaft (8) is located at the top of the tripod.

8. The plug-in test fixture for cable electrical testing according to claim 6, characterized in that: The hand crank handle (13) is located in the middle of the bracket body (14).

9. The plug-in test fixture for cable electrical testing according to claim 1, characterized in that: The steering bracket is a pre-assembled integrated structure.

10. A method for installing a plug-in test fixture for cable electrical testing according to any one of claims 1 to 9, characterized in that: The following steps are involved: Install the pre-assembled steering bracket to the test height and adjust it to the appropriate angle; Install the pressure-resistant system on the steering bracket at a corresponding angle to form a linkage steering structure; Insert the plug-in system at the end of the cable to be tested into the voltage-withstand system and ensure that the electrical connection is completed before conducting the electrical test.

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