Waterproof portable residual current sensor

Abstract

The utility model discloses a waterproof portable residual current sensor, which comprises a sensor and a base, the base is arranged at the bottom end of the sensor, and the waterproof portable residual current sensor further comprises extrusion mechanisms arranged on two sides of the sensor; and the clamping mechanism is arranged on the inner side of the extrusion mechanism. When the waterproof portable residual current sensor starts to be used, a groove rod, a spring, a baffle plate and an ejector rod are used in cooperation, so that the clamping mechanism is pushed to the inner side, and a rotating rod, a groove block, a rubber layer and a convex block are used in cooperation; through cooperative use of the above structures, the problem that current detection is affected because the electric wire cannot be kept at the central position of the sensor when current detection is carried out on the electric wire at present is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of current sensors, in particular to a waterproof portable residual current sensor. Background Art

[0002] A residual current sensor is a device used to detect residual current in a circuit. It monitors current imbalances and, when abnormal conditions such as leakage or short circuits occur in the circuit, promptly issues an alarm or cuts off the power supply to protect personnel and equipment. With the development of sensor technology, residual current sensors have become more accurate and reliable. Modern residual current sensors typically use electronic technology, providing higher sensitivity and faster response times. In addition, some sensors also have data logging and remote monitoring capabilities, further improving the safety and manageability of electrical systems. Residual current sensors are key components in modern electrical safety systems. By monitoring residual current in the circuit, they effectively prevent electrical accidents and protect the safety of personnel and property. As technology continues to advance, these sensors will continue to improve their performance and functionality to meet increasingly stringent electrical safety requirements.

[0003] At present, when a waterproof portable residual current sensor is used to detect the current in a wire, the wire needs to be passed through the sensor for detection. When the wire passes through the sensor, the wire cannot be kept in the center position, which easily leads to the problem of current not being detected. Moreover, in order to fix the wire when passing through the sensor, the wire needs to be wrapped around the outer wall of the sensor multiple times, which easily damages the wire. Utility Model Content

[0004] The purpose of the utility model is to provide a waterproof portable residual current sensor to solve the problem raised in the above background technology that the current in the wire needs to be detected by passing the wire through the sensor during use, and the wire cannot be kept in the center position when passing through the sensor, so that the current cannot be detected. In addition, in order to fix the wire through the sensor, the wire needs to be wrapped around the outer wall of the sensor multiple times, which easily causes the wire to be damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof portable residual current sensor, comprising a sensor and a base, wherein the base is provided at the bottom end of the sensor, and the waterproof portable residual current sensor further comprises: a squeezing mechanism, which is provided on both sides of the sensor; and a clamping mechanism, which is provided on the inner side of the squeezing mechanism; wherein the squeezing mechanism is used to provide an inward pushing force to the clamping mechanism, so that the clamping mechanism can effectively clamp the wire.

[0006] Preferably, the extrusion mechanism includes: a slot rod, fixedly arranged at the top and bottom ends of both sides of the sensor; a spring, fixedly arranged inside the slot rod; a baffle, fixedly arranged on the inner side of the spring; and a push rod, fixedly arranged at the bottom end of the baffle; wherein the spring can provide a downward pushing force to the push rod through the baffle.

[0007] Preferably, a cavity is provided inside the slot rod.

[0008] Preferably, the clamping mechanism includes: a rotating rod, which is rotatably arranged at the bottom end of the top rod; a slot block, which is rotatably arranged at the bottom end of the rotating rod; a rubber layer, which is fixedly arranged on the inner wall of the slot block; and a protrusion, which is fixedly arranged at the center of both sides of the sensor; wherein, when the rotating rod moves inward through the slot block, it can push the top rod upward and squeeze the spring.

[0009] Preferably, a groove is formed on the outer wall of the protrusion.

[0010] Preferably, an arc-shaped groove is provided on the inner side of the slot block.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is configured such that when the waterproof portable residual current sensor is put into use, the groove rod, spring, baffle and top rod are used in conjunction with each other to provide the clamping mechanism with an inward push, and the rotating rod, groove block, rubber layer and protrusion are used in conjunction with each other to clamp and fix the wire and keep the wire in the center position of the sensor at all times. The coordinated use of the above structures solves the current problem that the wire cannot be kept in the center position of the sensor when current detection is performed on the wire, thereby affecting the current detection, and solves the problem that the wire is repeatedly wrapped around the outer wall of the sensor when the sensor is fixed for current detection, which easily causes damage to the inside of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 Detailed view of the connection structure in side section;

[0014] Figure 3 for Figure 2 Enlarged detail diagram of the connection structure of the middle extrusion mechanism;

[0015] Figure 4 for Figure 1 Detail of the connection structure from the front.

[0016] In the figure: 1, sensor, 2, base, 3, extrusion mechanism, 301, slot rod, 302, spring, 303, baffle, 304, push rod, 4, clamping mechanism, 401, rotating rod, 402, slot block, 403, rubber layer, 404, bump. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4 The utility model provides a technical solution: a waterproof portable residual current sensor, including a sensor 1 and a base 2, the base 2 is provided at the bottom end of the sensor 1, and the waterproof portable residual current sensor also includes: a squeezing mechanism 3 is arranged on both sides of the sensor 1, and a clamping mechanism 4 is arranged on the inner side of the squeezing mechanism 3, wherein the squeezing mechanism 3 is used to provide an inward pushing force to the clamping mechanism 4, so that the clamping mechanism 4 can effectively clamp the wire.

[0019] Specifically, the extrusion mechanism 3 includes: a slot rod 301, a spring 302, a baffle 303 and a push rod 304;

[0020] The slot rod 301 is fixedly arranged at the top and bottom ends of both sides of the sensor 1. The slot rod 301 is used to support the spring 302. The spring 302 is fixedly arranged inside the slot rod 301. The baffle 303 is fixedly arranged on the inner side of the spring 302. When the baffle 303 moves upward, the spring 302 can be squeezed. The top rod 304 is fixedly arranged at the bottom end of the baffle 303. The spring 302 can provide a downward pushing force to the top rod 304 through the baffle 303. A cavity is opened inside the slot rod 301.

[0021] More specifically, the clamping mechanism 4 includes: a rotating rod 401, a slot block 402, a rubber layer 403 and a protrusion 404;

[0022] The rotating rod 401 is rotatably set at the bottom end of the top rod 304. When the bottom end of the rotating rod 401 moves inward, the top rod 304 can be pushed upward. The groove block 402 is rotatably set at the bottom end of the rotating rod 401. After the groove block 402 is buckled, the wire can be clamped. The rubber layer 403 is fixedly set on the inner wall of the groove block 402. The rubber layer 403 increases the friction. The protrusion 404 is fixedly set at the center of both sides of the sensor 1. When the rotating rod 401 moves inward through the groove block 402, the top rod 304 can be pushed upward and the spring 302 can be squeezed. The outer wall of the protrusion 404 is provided with a groove, and the inner side of the groove block 402 is provided with an arc-shaped groove.

[0023] Working principle: When the waterproof portable residual current sensor is used, the user first passes the wire through the center of the sensor 1, and then the user buckles the slot block 402 on the outer wall of the wire. Then, when the slot block 402 is buckled on the outer wall of the wire, the user pushes the slot block 402 inward. When pushing, the slot block 402 slides inward on the outer wall of the wire, and then the bottom end of the rotating rod 401 moves inward at the same time through the inward movement of the slot block 402. When moving, the top rod 304 is pushed outward through the rotating rod 401, and then the baffle 30 is driven outward by the top rod 304. The groove block 402 moves outwards inside the groove rod 301 and compresses the spring 302. Then, when the groove block 402 continues to move inwards to the inside of the groove formed by the protrusion 404, the protrusion 404 can limit the engaged groove block 402. When the groove block 402 moves into the inside of the protrusion 404, the rotating rod 401 and the top rod 404 are on the same horizontal line. Therefore, the top rod 304 and the rotating rod 401 can move inwards through the groove block 402 to effectively clamp the wire and keep the wire at the center of the sensor 1, thereby avoiding the problem of undetectable current in the wire.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof portable residual current sensor, comprising a sensor (1) and a base (2), wherein the base (2) is provided at the bottom end of the sensor (1), characterized in that: The waterproof portable residual current sensor also includes: A squeezing mechanism (3) is arranged on both sides of the sensor (1); A clamping mechanism (4) is arranged inside the extrusion mechanism (3); The squeezing mechanism (3) is used to provide an inward pushing force to the clamping mechanism (4), so that the clamping mechanism (4) can effectively clamp the wire.

2. A waterproof portable residual current sensor according to claim 1, characterized in that: The extrusion mechanism (3) comprises: Slot rods (301) are fixedly arranged at the top and bottom ends of both sides of the sensor (1); A spring (302) is fixedly arranged inside the slot rod (301); a baffle (303) fixedly disposed on the inner side of the spring (302); A push rod (304) is fixedly arranged at the bottom end of the baffle (303); The spring (302) can provide a downward pushing force to the push rod (304) through the baffle (303).

3. A waterproof portable residual current sensor according to claim 2, characterized in that: A cavity is provided inside the slot rod (301).

4. A waterproof portable residual current sensor according to claim 3, characterized in that: The clamping mechanism (4) comprises: A rotating rod (401) is rotatably arranged at the bottom end of the top rod (304); A slot block (402) is rotatably disposed at the bottom end of the rotating rod (401); A rubber layer (403) is fixedly arranged on the inner wall of the groove block (402); Bumps (404) are fixedly arranged at the centers of both sides of the sensor (1); When the rotating rod (401) moves inward through the slot block (402), the push rod (304) can be pushed upward and the spring (302) can be squeezed.

5. The waterproof portable residual current sensor according to claim 4, characterized in that: The outer wall of the protrusion (404) is provided with a groove.

6. The waterproof portable residual current sensor according to claim 5, characterized in that: An arc-shaped groove is provided on the inner side of the slot block (402).

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