A voltage detection device for electrical equipment maintenance with overload protection mechanism

Abstract

The invention relates to the technical field of voltage detection devices, and discloses a voltage detection device for electrical equipment maintenance with an overload protection mechanism, comprising a voltage detection main body provided with a plurality of cylinders, the outer side of each cylinder being provided with a connecting ear, the connecting ear being rotatably connected to a limit cover, a plurality of connecting rods being connected below the limit cover, a sliding connection being adopted between the connecting rod and a base, a spring being tightly pressed against the bottom surface of the base, a limit ring being arranged inside the base, the base being slidably connected to a group of limit rods, a spring 2 being sleeved on one end of the limit rod, and one end of the spring 2 being tightly pressed against one side of the base; the problem that the detection line is easily loosened and falls off due to the influence of external force during the plugging process is effectively solved, and the stability and reliability of the detection are improved.

Description

Technical Field

[0001] The invention relates to the technical field of voltage detection devices, in particular to a voltage detection device for electrical equipment maintenance with an overload protection mechanism. Background Art

[0002] The voltage detection device is an instrument used to detect the working voltage between electrical equipment. It is often needed when repairing electrical equipment and is an indispensable instrument for electrical maintenance. The overload protection mechanism is mainly composed of electromagnets, rotating guides, fixed guides, springs and other components. Under normal working conditions, the attraction of the electromagnet to the rotating guide is less than the tension of the spring, and the circuit remains closed. When the equipment is overloaded, that is, the current exceeds the rated value, the magnetism of the electromagnet is enhanced, and the attraction to the rotating guide increases, causing the rotating guide to separate from the fixed guide, thereby cutting off the circuit and achieving overload protection. During the on-site inspection process, one end of the detection line is generally connected to the voltmeter by plugging, which is easily affected by external forces. The connection may loosen or even fall off, resulting in detection interruption.

[0003] To this end, we propose a voltage detection device for electrical equipment maintenance with an overload protection mechanism. Summary of the invention

[0004] The purpose of the present invention is to provide a voltage detection device for electrical equipment maintenance with an overload protection mechanism, so as to solve the problem proposed in the above-mentioned background technology that during the on-site detection process, one end of the detection line is generally connected to the voltmeter in a plug-in manner, which is easily affected by external forces, and the connection may become loose or even fall off, resulting in detection interruption.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a voltage detection device for maintaining electrical equipment with an overload protection mechanism, comprising a voltage detection body, wherein the voltage detection body is provided with a plurality of cylinders, a connecting ear is provided on the outer side of the cylinder, the connecting ear is rotatably connected to a limit cover, a connecting rod is provided under the limit cover, the connecting rod is slidably connected to a base, the bottom surface of the base is tightly pressed with a spring, a limit ring is provided inside the base, the limit ring is slidably connected to a group of limit rods, one end of the limit rod is sleeved with a spring 2, and one end of the spring 2 is tightly pressed with one side of the base.

[0006] Preferably, a plurality of positioning grooves are provided inside the base, the positioning grooves are distributed in a ring shape, and the positioning grooves are snap-fitted with the limiting rods.

[0007] Preferably, the limiting rod comprises a rod body, a spring three is arranged inside the rod body, the rod body is slidably connected to a positioning plate, a sliding groove is provided on the rod body, and the sliding groove is slidably connected to a limiting ring.

[0008] Preferably, the shaft is clip-fitted into the interior of the positioning groove via a positioning plate.

[0009] Preferably, one end of the rod body is tightly pressed against spring 2, and the other end of the rod body is tightly pressed against one side of the base through spring 2.

[0010] Preferably, one end of the spring three is tightly pressed against the inside of the rod body, and the other end of the spring three is tightly pressed against the positioning plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention sets a plurality of cylinders through a voltage detection main body, and the outer side of each cylinder is equipped with a connecting ear, which is rotatably connected to a limit cover, and a plurality of connecting rods are connected below the limit cover. A sliding connection is adopted between the connecting rod and the base, and a spring is tightly pressed on the bottom surface of the base. A limit ring is arranged inside the base, and the base is slidably connected to a group of limit rods, and a spring 2 is sleeved on one end of the limit rod, and one end of the spring 2 is tightly pressed on one side of the base, which effectively solves the problem that the detection line is easily loosened and falls off due to external force during the plug-in process, and improves the stability and reliability of the detection.

[0013] 2. The present invention provides a limiting ring inside the base, and the base is slidably connected to a group of limiting rods. One end of the limiting rod is sleeved with a spring 2, and one end of the spring 2 is tightly pressed on one side of the base, which is effective and practical for different detection line models and improves the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall decomposition structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the limiting rod of the present invention;

[0016] Figure 3 It is a schematic diagram of the overall front structure of the present invention;

[0017] In the figure: 1. voltage detection body; 2. cylinder; 3. connecting ear; 4. limiting cover; 5. connecting rod; 6. base; 7. spring; 8. limiting ring; 9. limiting rod; 10. spring 2; 901. rod body; 902. spring 3; 903. positioning plate. DETAILED DESCRIPTION

[0018] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] Example

[0020] See also Figure 1-Figure 3 The figure shows a voltage detection device for electrical equipment maintenance with an overload protection mechanism, including a voltage detection body 1, the voltage detection body 1 is provided with a plurality of cylinders 2, a connecting ear 3 is provided on the outer side of the cylinder 2, the connecting ear 3 is rotatably connected to a limit cover 4, a connecting rod 5 is provided below the limit cover 4, the connecting rod 5 is slidably connected to a base 6, the bottom surface of the base 6 is tightly pressed with a spring 7, a limit ring 8 is provided inside the base 6, the limit ring 8 is slidably connected to a group of limit rods 9, one end of the limit rod 9 is sleeved with a spring 2 10, and one end of the spring 2 10 is tightly pressed with one side of the base 6, which effectively solves the problem that the detection line is easily loosened and falls off due to external force during the plug-in process, and improves the stability and reliability of the detection.

[0021] Furthermore, a plurality of positioning grooves are provided inside the base 6, and the positioning grooves are distributed in a ring shape. The positioning grooves are snap-fitted with the limiting rod 9. By providing a plurality of positioning grooves inside the base, the positioning grooves are carefully arranged in a ring shape, thereby ensuring that the limiting rod can be evenly supported, and each positioning groove is snap-fitted with the limiting rod, so that the limiting rod can be firmly fixed in the positioning groove when subjected to external force, and is not prone to sliding or falling off.

[0022] Furthermore, the limiting rod 9 includes a rod body 901, a spring three 902 is arranged inside the rod body 901, the rod body 901 is slidably connected to the positioning plate 903, the rod body 901 is provided with a sliding groove, and the sliding groove is slidably connected to the limiting ring 8. The limiting rod is mainly composed of the rod body, and the spring three is arranged inside the rod body, so that when the limiting rod is subjected to external force, the position of the limiting rod can be adjusted through the elastic action of the spring to ensure that the detection line is clamped and fixed.

[0023] Furthermore, the rod body 901 is engaged with the inside of the positioning groove through the positioning plate 903, and the rod body in the limiting rod cooperates with the positioning plate, so that the rod body can be firmly fixed in the positioning groove, and it also ensures that the limiting rod will not easily loosen or fall off due to vibration or pulling when subjected to external force. At the same time, the positioning plate can adjust its position according to actual needs to better adapt to the shape and size of the positioning groove and achieve a tighter fit.

[0024] Furthermore, one end of the rod body 901 is tightly pressed against the spring 2 10, and the other end of the rod body 901 is tightly pressed against one side of the base 6 through the spring 2 10. The tight pressing between the rod body, the spring 2 and the base ensures that the rod body can automatically restore to its initial position through the elasticity of the spring 2 when subjected to external force, while ensuring the stability and accuracy of the entire voltage detection device.

[0025] Furthermore, one end of spring three 902 is tightly pressed against the inside of the rod shaft 901, and the other end of spring three 902 is tightly pressed against the positioning plate 903. By tightly pressing spring three against the inside of the rod shaft, one end of spring three is tightly pressed against the inner wall of the rod shaft, and the other end is also tightly pressed against the positioning plate, thereby ensuring the stability and reliability of spring three inside the limit rod and providing it with good elastic support. When the limit rod is subjected to external force, spring three can respond quickly and can adjust its position inside the rod shaft according to actual needs to improve the overall stability and reliability.

[0026] In this solution, the working process is: first, insert the detection line into the cylinder of the voltage detection body and limit it with the limit cover. Then, by adjusting the sliding connection between the connecting rod and the base, ensure that the device is stably fixed on the electrical equipment. During the detection process, if abnormal voltage or external force impact is encountered, the spring, spring two and spring three will work together to absorb and disperse the impact force to protect the safety of the device and the detection line. At the same time, the snap-fitting of the limit rod and the positioning groove and the sliding connection between the limit ring and the sliding groove ensure the stability and accuracy of the device during the detection process.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although 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 detection device for electrical equipment maintenance with an overload protection mechanism, characterized in that: The invention comprises a voltage detection body (1), wherein the voltage detection body (1) is provided with a plurality of cylinders (2), the outer side of the cylinders (2) is provided with connecting ears (3), the connecting ears (3) are rotatably connected to a limiting cover (4), a connecting rod (5) is provided below the limiting cover (4), the connecting rod (5) is slidably connected to a base (6), the bottom surface of the base (6) is tightly pressed with a spring (7), a limiting ring (8) is provided inside the base (6), the limiting ring (8) is slidably connected to a group of limiting rods (9), one end of the limiting rod (9) is sleeved with a second spring (10), and one end of the second spring (10) is tightly pressed with one side of the base (6).

2. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1, characterized in that: A plurality of positioning grooves are provided inside the base (6), the positioning grooves are distributed in a ring shape, and the positioning grooves are engaged with the limiting rods (9).

3. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 1, characterized in that: The limiting rod (9) comprises a rod body (901), a spring three (902) is arranged inside the rod body (901), the rod body (901) is slidably connected to a positioning plate (903), and a sliding groove is provided on the rod body (901), and the sliding groove is slidably connected to a limiting ring (8).

4. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 3, characterized in that: The rod body (901) is snap-fitted into the interior of the positioning groove via a positioning plate (903).

5. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 4, characterized in that: One end of the rod body (901) is tightly pressed against spring 2 (10), and the other end of the rod body (901) is tightly pressed against one side of the base (6) through spring 2 (10).

6. A voltage detection device for electrical equipment maintenance with an overload protection mechanism according to claim 3, characterized in that: One end of the spring three (902) is tightly pressed into the interior of the rod body (901), and the other end of the spring three (902) is tightly pressed into the positioning plate (903).

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