Current detector with anti-falling function

Abstract

The utility model discloses a current detection instrument with anti -drop function relates to current detection instrument field, including current detection instrument body, the upper and lower both sides of current detection instrument body all are provided with the protective cover, and the cavity is connected with double -shaft motor in the cavity of current detection instrument body, and two output ends all are connected with the pivot of double -shaft motor, and the other end of pivot passes the lateral wall of current detection instrument body and is connected with the gear, and the outer wall of gear is connected with two racks, and the lateral wall of two racks all is connected with the pull rod. The utility model discloses make automatic reset switch be in reset state, make double -shaft motor stop working, and torsional spring drives rotary plate to return, and rotary plate drives pivot to return, and pivot drives gear to return, and gear pulls two racks to reset to drive two protective cover to reset, and utilize two protective cover to protect current detection instrument body to avoid current detection instrument body fall easily damaged problem.

Description

Technical Field

[0001] This utility model relates to the field of current detectors, and in particular to a current detector with drop protection function. Background Technology

[0002] The current tester is a portable rectifier instrument with high sensitivity and multi-range protection circuitry. Its features include a wide measurement range (20 ranges in total), capable of measuring AC and DC stray voltages and currents separately. It requires no power supply and is safe and reliable. It is suitable for testing the current and voltage generated by rails, water pipes, and cables in underground coal mines, preventing premature detonation of electric detonators and other explosion accidents caused by stray current discharge, and minimizing ignition sources in the mine. This portable rectifier instrument features multi-range protection circuitry.

[0003] Currently, when using handheld current detectors, in order to prevent the current detector from being dropped and damaged, the existing technology will set a protective cover on the outside of the current detector for protection. The protective cover needs to be closed manually. However, if the current detector is accidentally dropped while in use and the protective cover is not closed, it will damage the current detector and affect its use.

[0004] Therefore, it is necessary to invent a current detector with drop protection to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a current detector with drop protection to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a current detector with drop protection function, comprising a current detector body, with protective covers on both the upper and lower sides of the current detector body, a cavity inside the current detector body, and a dual-axis motor connected inside the cavity, with two output ends of the dual-axis motor connected to rotating shafts, the other end of the rotating shafts passing through the side wall of the current detector body and connected to gears, two racks connected to the outer wall of the gears, pull rods connected to the side walls of the two racks, the other ends of the two pull rods respectively connected to the inner walls of the two protective covers, fixing boxes connected to the left and right sides of the current detector body, the side walls of the fixing boxes having strip-shaped openings corresponding to the pull rods, and an automatic reset switch connected to the opposite sides of the two fixing boxes, and a spring-loaded assembly provided inside the cavity.

[0007] Preferably, both of the protective covers are provided with protective pads.

[0008] Preferably, the rebound assembly includes a fixed plate connected to the cavity, the side wall of the fixed plate has a through hole corresponding to the rotating shaft, the outer wall of the rotating shaft is connected to a rotating plate, the side wall of the rotating plate is connected to a torsion spring, and the other end of the torsion spring is connected to the side wall of the fixed plate.

[0009] Preferably, corner protectors are attached to the four corners of both protective covers.

[0010] The technical effects and advantages of this utility model are as follows: By setting the automatic reset switch to the reset state, the dual-axis motor stops working. The torsion spring drives the rotating plate to rotate, which in turn drives the rotating shaft to rotate. The rotating shaft drives the gear to rotate, and the gear pulls the two racks to reset, thereby resetting the two protective covers. The two protective covers protect the current detector body, thus preventing the current detector body from being easily damaged by drops. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A cross-sectional view of the protective cover; Figure 3 This utility model Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 This utility model Figure 1 A schematic diagram of the side view structure; Figure 5 This utility model Figure 4 A cross-sectional view of the protective cover; Figure 6 This utility model Figure 5 A cross-sectional view of the fixing box; Figure 7 This utility model Figure 3 A magnified structural diagram of part A; Figure 8 This utility model Figure 6 A magnified structural diagram of part B.

[0012] In the diagram: 1. Current detector body; 2. Protective cover; 3. Dual-axis motor; 4. Rotating shaft; 5. Gear; 6. Rack; 7. Pull rod; 8. Fixing box; 9. Rebound assembly; 91. Fixing plate; 92. Rotating plate; 93. Torsion spring; 10. Automatic reset switch; 11. Protective pad; 12. Corner protector. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] This utility model provides, for example Figure 1-8 The current detector shown includes a current detector body 1, with protective covers 2 on both the upper and lower sides of the current detector body 1. A cavity is opened inside the current detector body 1, and a dual-axis motor 3 is connected inside the cavity. The two output ends of the dual-axis motor 3 are connected to rotating shafts 4. The other end of the rotating shaft 4 passes through the side wall of the current detector body 1 and is connected to a gear 5. Two racks 6 are connected to the outer wall of the gear 5. Pull rods 7 are connected to the side walls of the two racks 6. The other ends of the two pull rods 7 are respectively connected to the inner walls of the two protective covers 2. Fixing boxes 8 are connected to the left and right sides of the current detector body 1. The side walls of the fixing boxes 8 have strip-shaped openings corresponding to the pull rods 7. An automatic reset switch 10 is connected to the opposite side of the two fixing boxes 8. A spring-loaded component 9 is provided inside the cavity.

[0015] Both protective covers 2 are equipped with protective pads 11, which can conveniently protect the current detector body 1.

[0016] The rebound assembly 9 includes a fixed plate 91 connected to the cavity. The side wall of the fixed plate 91 has a through hole corresponding to the rotating shaft 4. A rotating plate 92 is connected to the outer wall of the rotating shaft 4. A torsion spring 93 is connected to the side wall of the rotating plate 92. The other end of the torsion spring 93 is connected to the side wall of the fixed plate 91. By pressing the automatic reset switch 10, the dual-axis motor 3 drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it drives the rotating plate 92 and the gear 5 to rotate. The rotating plate 92 drives the torsion spring 93 to rotate, and the gear 5 drives two racks 6 to move in opposite directions. The two racks 6 pull the two protective covers 2 respectively. The two protective covers 2 are positioned far apart, exposing the current detector body 1 for use. When the current detector body 1 falls downwards, the automatic reset switch 10 is in the reset state, causing the dual-axis motor 3 to stop working. The torsion spring 93 drives the rotating plate 92 to rotate, which in turn drives the rotating shaft 4 to rotate. The rotating shaft 4 drives the gear 5 to rotate, and the gear 5 pulls the two racks 6 to reset, thereby resetting the two protective covers 2. The two protective covers 2 protect the current detector body 1, thus preventing the current detector body 1 from being easily damaged by falling.

[0017] Corner pads 12 are connected to the four corners of both protective covers 2, which can easily protect the protective covers 2.

[0018] Working principle of this utility model: By pressing the automatic reset switch 10, the dual-axis motor 3 drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it drives the rotating plate 92 and the gear 5 to rotate. The rotating plate 92 drives the torsion spring 93 to rotate. The gear 5 drives the two racks 6 to move in opposite directions. The two racks 6 pull the two protective covers 2 respectively, so that the two protective covers 2 are far apart, exposing the current detector body 1 for use. When the current detector body 1 falls downward, the automatic reset switch 10 is in the reset state, causing the dual-axis motor 3 to stop working. The torsion spring 93 drives the rotating plate 92 to rotate. The rotating plate 92 drives the rotating shaft 4 to rotate. The rotating shaft 4 drives the gear 5 to rotate. The gear 5 pulls the two racks 6 to reset, thereby driving the two protective covers 2 to reset, using the two protective covers 2 to protect the current detector body 1.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A current detector with drop protection, comprising a current detector body, characterized in that: The current detector body is equipped with protective covers on both the top and bottom sides. A cavity is formed inside the current detector body, and a dual-axis motor is connected within the cavity. Each of the two output ends of the dual-axis motor is connected to a rotating shaft. The other end of each rotating shaft passes through the side wall of the current detector body and is connected to a gear. Two racks are connected to the outer wall of each gear, and pull rods are connected to the side walls of each rack. The other ends of each pull rod are connected to the inner walls of the two protective covers. Fixing boxes are connected to both the left and right sides of the current detector body. The side walls of each fixing box have slots corresponding to the pull rods. An automatic reset switch is connected to the opposite side of each fixing box. A spring-loaded assembly is installed within the cavity.

2. A current detector with drop protection function according to claim 1, characterized in that: Both of the protective covers are equipped with protective pads.

3. A current detector with drop protection function according to claim 1, characterized in that: The rebound assembly includes a fixed plate connected to the cavity. The side wall of the fixed plate has a through hole corresponding to the rotating shaft. The outer wall of the rotating shaft is connected to a rotating plate. The side wall of the rotating plate is connected to a torsion spring. The other end of the torsion spring is connected to the side wall of the fixed plate.

4. A current detector with drop protection function according to claim 1, characterized in that: Corner pads are attached to the four corners of both protective covers.

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