Explosion-proof universal meter

Abstract

The utility model discloses an explosion-proof universal meter, and relates to the technical field of universal meters. Comprising an explosion-proof universal meter body, two test wires which are installed on the explosion-proof universal meter body and are used for detecting a circuit, a winding mechanism which is installed on the explosion-proof universal meter body and is used for winding test wire leads, and a protection mechanism which is installed on the explosion-proof universal meter body and is used for protecting test wire probes. The winding mechanism comprises a first winding wheel and a second winding wheel which are rotationally arranged at the bottom of the explosion-proof universal meter body and are used for winding the two test wires respectively, and two gears which are meshed with each other are fixedly arranged on the outer walls of the first winding wheel and the second winding wheel. One ends of leads of two test lines can be respectively fixed on the first winding wheel and the second winding wheel through the elastic belt, after people rotate the first winding wheel, the first winding wheel and the second winding wheel can rotate at the same time and wind the leads of the two test lines in cooperation with meshing of the two gears, winding is more efficient and time-saving, and the working efficiency is improved. The practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of multimeters, in particular to an explosion-proof multimeter. Background Art

[0002] An explosion-proof multimeter is a special multimeter. Its main function is to perform electrical measurements in flammable and explosive places. It has multiple protection measures such as explosion-proof, fire-proof and explosion-proof safety. It is widely used in electromechanical maintenance, installation and commissioning in industries such as petroleum, chemical, pharmaceutical, oil depot, metallurgy, and coal mining. At the same time, it can also be used in general electrical measurement work. In addition, it is also suitable for outdoor construction, pipeline inspection, etc., and can be used in conjunction with OA office systems, inspection positioning systems, data acquisition systems and other applications.

[0003] The patent with announcement number CN217034075U discloses "a new type of multimeter, which includes a multimeter body, a wire arranged on the multimeter body, and a test lead arranged at one end of the wire away from the multimeter body, the side wall of the multimeter body is provided with a receiving groove for the test lead to be embedded, and the groove wall of the receiving groove is provided with an elastic strip; this application has the effect of reducing the possibility of injury to the staff."

[0004] With respect to the above-mentioned related technologies, the inventor believes that when the multimeter is not used, the wires of the multimeter need to be wound around the connecting column, and the wires of the multimeter have two positive and negative poles. It takes time for people to slowly and manually wind the two wires, so there is room for improvement. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides an explosion-proof multimeter. The specific technical scheme is as follows:

[0006] An explosion-proof multimeter comprises an explosion-proof multimeter body, two test wires installed on the explosion-proof multimeter body and used for detecting circuits, a winding mechanism installed on the explosion-proof multimeter body and used for winding up the test wires, and a protection mechanism installed on the explosion-proof multimeter body and used for protecting the test wire probes. The winding mechanism comprises a first winding wheel and a second winding wheel rotatably arranged at the bottom of the explosion-proof multimeter body and used for respectively winding up the two test wires, two meshing gears are fixedly arranged on the outer walls of the first winding wheel and the second winding wheel, and elastic bands for fixing one end of the test wire are fixedly arranged on the outer walls of the first winding wheel and the second winding wheel.

[0007] By adopting the above technical solution, the elastic band can fix one end of the wires of the two test lines on the first winding wheel and the second winding wheel respectively. After people rotate the first winding wheel and cooperate with the engagement of the two gears, the first winding wheel and the second winding wheel can simultaneously rotate and reel in the wires of the two test lines.

[0008] Optionally, a square rod is slidably provided at the center of the first winding wheel, and a crank handle for people to hold is fixed at one end of the square rod.

[0009] By adopting the above technical solution, people can drive the square rod to rotate by shaking the handle, and the rotation of the square rod will drive the first winding wheel to rotate.

[0010] Optionally, a rotating groove for rotating the square rod is provided in the explosion-proof multimeter body, and a fixing mechanism for fixing the first winding wheel after rotation is provided in the first winding wheel, the fixing mechanism includes a plurality of positioning holes evenly arranged in the rotating groove, and a rubber block fixed at one end of the square rod and inserted into the positioning hole, and a receiving groove for accommodating the rubber block after sliding is provided at one end of the first winding wheel.

[0011] By adopting the above technical solution, the rubber block is inserted into the corresponding positioning hole, so that the rotating first winding wheel and other components can be fixed, so that the first winding wheel and other components will not rotate arbitrarily and make the test line loose after winding.

[0012] Optionally, the protection mechanism includes a U-shaped cover fixedly arranged on both sides of the explosion-proof multimeter body, the test leads of the test line are located in the U-shaped cover, and clamping blocks are fixedly arranged on both sides of the explosion-proof multimeter body, and the test leads of the test line are movably clamped in the clamping blocks.

[0013] By adopting the above technical solution, the U-shaped cover can cover the fixed test lead, thereby reducing the probability of the test lead's head stabbing the staff.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. One end of the wires of the two test lines can be fixed on the first winding wheel and the second winding wheel respectively through the elastic band. After people rotate the first winding wheel and cooperate with the meshing of the two gears, the first winding wheel and the second winding wheel can rotate and reel in the wires of the two test lines at the same time, which is more efficient, time-saving, convenient and practical.

[0016] 2. The rubber block is inserted into the corresponding positioning hole to fix the rotating first winding wheel and other components, so that the first winding wheel and other components will not rotate arbitrarily and make the test line loose after winding. The card block can fix the test lead of the test line, and the U-shaped cover can cover the fixed test lead of the test line, reducing the probability of the test lead of the test line to stab the staff and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 The utility model Figure 2 A magnified view of the structure in the middle;

[0020] Figure 4 The utility model is a side view connection diagram of the partial structure of the explosion-proof multimeter body and the test line.

[0021] Explanation of the accompanying reference numerals: 1. explosion-proof multimeter body; 11. rotating groove; 12. positioning hole; 2. test line; 3. first winding wheel; 31. second winding wheel; 32. gear; 33. elastic band; 34. receiving groove; 4. clamping block; 41. U-shaped cover; 5. square rod; 51. crank handle; 52. rubber block. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 The utility model is described in further detail.

[0023] The utility model embodiment discloses an explosion-proof multimeter, referring to Figure 1 , including an explosion-proof multimeter body 1, two test wires 2 installed on the explosion-proof multimeter body 1 and used for detecting circuits, a winding mechanism installed on the explosion-proof multimeter body 1 and used for winding up the test wires 2, and a protection mechanism installed on the explosion-proof multimeter body 1 and used for protecting the test leads of the test wires 2. The explosion-proof multimeter body 1 is an existing explosion-proof multimeter, and its internal structure and principle have been disclosed, so no further details are given here. The test lead 2 is composed of a wire and a test lead, which is a public technology, and the test lead 2 of the explosion-proof multimeter body 1 has two positive and negative poles.

[0024] Reference Figure 1-3 The winding mechanism includes a first winding wheel 3 and a second winding wheel 31 which are rotatably arranged at the bottom of the explosion-proof multimeter body 1 and are used to respectively wind up the two test wires 2. After the first winding wheel 3 and the second winding wheel 31 rotate, the two test wires 2 can be wound up. The outer walls of the first winding wheel 3 and the second winding wheel 31 are fixed with two meshing gears 32. The two gears 32 are respectively arranged on the outer walls of the first winding wheel 3 and the second winding wheel 31, and the two gears 32 are meshed and connected, so that after the first winding wheel 3 rotates, it will drive the second winding wheel 31 to rotate.

[0025] Reference Figure 1-3 The outer walls of the first winding wheel 3 and the second winding wheel 31 are fixed with an elastic band 33 for fixing one end of the wire of the test line 2. The elastic band 33 is an elastic object such as a U-shaped rubber band and a rubber rope. The elastic band 33 can cover one end of the wire of the test line 2, so as to facilitate the first winding wheel 3 and the second winding wheel 31 to wind the wire of the test line 2 after rotation.

[0026] Reference Figure 1-3A square rod 5 is slidably provided at the center of the first winding wheel 3. The square rod 5 is slidably connected to the center of the corresponding first winding wheel 3. A crank 51 for people to hold is fixed at one end of the square rod 5. People can drive the square rod 5 to rotate by shaking the crank 51. After the square rod 5 rotates, it will drive the first winding wheel 3 to rotate.

[0027] Reference Figure 2-3 A rotating groove 11 is provided in the explosion-proof multimeter body 1 for the square rod 5 to rotate, and a fixing mechanism is provided in the first winding wheel 3 for fixing the first winding wheel 3 after rotation. The fixing mechanism includes a plurality of positioning holes 12 evenly arranged in the rotating groove 11, and a rubber block 52 fixed at one end of the square rod 5 and inserted in the positioning hole 12. After the rubber block 52 is inserted into the corresponding positioning hole 12, the first winding wheel 3 and the second winding wheel 31 and other components after rotation can be fixed, so that the first winding wheel 3 and other components will not rotate at will and make the wire of the test line 2 loose after winding.

[0028] Reference Figure 2-3 One end of the first winding wheel 3 is provided with a receiving groove 34 for receiving the sliding rubber block 52. People can pull the rubber block 52 of the square rod 5 from the positioning hole 12 into the receiving groove 34, so that when the square rod 5 rotates, the rubber block 52 will not rotate with it and insert into the corresponding positioning hole 12 to hinder the rotation.

[0029] Reference Figure 1 , Figure 2 and Figure 4 The explosion-proof multimeter body 1 is fixed with a clamping block 4 on both sides, and the test lead of the test line 2 is movably clamped in the clamping block 4. The clamping block 4 can be a common U-shaped clamping block and a U-shaped clip. The clamping block 4 can fix the test lead of the test line 2 on the outside of the explosion-proof multimeter body 1.

[0030] Reference Figure 1 , Figure 2 and Figure 4 The protection mechanism includes a U-shaped cover 41 fixed on both sides of the explosion-proof multimeter body 1, and the test lead of the test line 2 is located in the U-shaped cover 41. The U-shaped cover 41 can cover the fixed test lead of the test line 2, reducing the probability of the test lead of the test line 2 stabbing the staff.

[0031] The implementation principle of an explosion-proof multimeter of the utility model embodiment is:

[0032] When people do not use the explosion-proof multimeter body 1 to store the test wires 2, people can first use the elastic band 33 to cover one end of the wires of the two test wires 2, and then drive the square rod 5 to rotate by shaking the handle 51. After the square rod 5 rotates, it will drive the first winding wheel 3 to rotate. At this time, the meshing connection of the two adjacent gears 32 can drive the second winding wheel 31 to rotate, so that the first winding wheel 3 and the second winding wheel 31 can rotate at the same time and reel in the wires of the two test wires 2;

[0033] After winding, people can push the square rod 5 toward the inside of the first winding wheel 3 so that the rubber block 52 can be inserted into the corresponding positioning hole 12 to fix the rotating first winding wheel 3 and the second winding wheel 31 and other components, so that the first winding wheel 3 and other components will not rotate at will and make the wire of the winding test line 2 loose;

[0034] Then people can flexibly clamp the test lead of the test line 2 in the clamping block 4, and allow the test lead of the test line 2 to enter the U-shaped cover 41. At this time, the U-shaped cover 41 can cover the fixed test lead of the test line 2, reducing the probability of the test lead of the test line 2 stabbing the staff.

[0035] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An explosion-proof multimeter, comprising an explosion-proof multimeter body (1), two test wires (2) mounted on the explosion-proof multimeter body (1) and used for detecting a circuit, a winding mechanism mounted on the explosion-proof multimeter body (1) and used for winding the test wires (2), and a protection mechanism mounted on the explosion-proof multimeter body (1) and used for protecting the test leads of the test wires (2), characterized in that: The winding mechanism comprises a first winding wheel (3) and a second winding wheel (31) rotatably arranged at the bottom of the explosion-proof multimeter body (1) for respectively winding up the two test wires (2); two meshing gears (32) are fixedly arranged on the outer walls of the first winding wheel (3) and the second winding wheel (31); and elastic bands (33) for fixing one end of the test wire (2) are fixedly arranged on the outer walls of the first winding wheel (3) and the second winding wheel (31).

2. An explosion-proof multimeter according to claim 1, characterized in that: A square rod (5) is slidably provided at the center of the first winding wheel (3), and a crank handle (51) for people to hold is fixedly provided at one end of the square rod (5).

3. An explosion-proof multimeter according to claim 2, characterized in that: The explosion-proof multimeter body (1) is provided with a rotation groove (11) for the square rod (5) to rotate, and the first winding wheel (3) is provided with a fixing mechanism for fixing the first winding wheel (3) after rotation.

4. An explosion-proof multimeter according to claim 3, characterized in that: The fixing mechanism comprises a plurality of positioning holes (12) evenly arranged in the rotating groove (11), and a rubber block (52) fixedly arranged at one end of the square rod (5) and inserted in the positioning hole (12).

5. An explosion-proof multimeter according to claim 4, characterized in that: One end of the first winding wheel (3) is provided with a receiving groove (34) for receiving the sliding rear rubber block (52).

6. An explosion-proof multimeter according to claim 1, characterized in that: The protection mechanism comprises a U-shaped cover (41) fixedly arranged on both sides of the explosion-proof multimeter body (1), and the test leads of the test line (2) are located inside the U-shaped cover (41).

7. An explosion-proof multimeter according to claim 1, characterized in that: Clamping blocks (4) are fixedly provided on both sides of the explosion-proof multimeter body (1), and the test leads of the test line (2) are movably clamped in the clamping blocks (4).

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