CN117724010B - Line leakage fault positioning device and positioning method - Google Patents

Abstract

A line leakage fault positioning device and positioning method, belonging to the field of circuit leakage detection equipment. It includes a multimeter, a housing, a transmission device I, a transmission device II, a connecting device, a transmission device III and a fixing device; the lower end of the multimeter is fixedly connected with the housing; the inner bottom end of the housing is provided with a fixing device that slides with the housing, and the upper end of the fixing device is provided with a transmission device III; the transmission device I and the transmission device II are arranged on the side of the housing, and the transmission device I and the transmission device II are matched with the corresponding transmission device III; the connecting device is fixedly connected to the outer upper end of the transmission device I and the transmission device II. The present invention can not only fix the multimeter, but also facilitate movement, and at the same time prevent the plugs of the red and black test leads from loosening, and the present invention can also shrink the transmission device I, the transmission device II and the fixing device to reduce the space occupied during movement, which is convenient for carrying.

Description

A line leakage fault locating device and locating method

Technical Field

The invention relates to a line leakage fault locating device and a locating method, belonging to the field of circuit leakage detection equipment.

Background technique

A multimeter is a versatile measuring device that can be used to measure parameters such as voltage, current, and resistance. By connecting the multimeter to two points in a circuit, the voltage and current between the two points can be measured. If there is a leakage, the digital multimeter will show a local voltage decrease and current increase.

The multimeters commonly used at present do not have a fixing device. When using them, the staff need to frequently lower their heads to check the measured data. Even after the multimeter is fixed, the red and black test pens need to be moved for measurement during use. If the distance the red and black test pens are moved is greater than the length of their wires, it is easy to cause the plug to loosen. Therefore, improvement is necessary.

Summary of the invention

The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a line leakage fault locating device and a locating method.

The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

A line leakage fault locating device comprises a multimeter, a housing, a transmission device I, a transmission device II, a connecting device, a transmission device III and a fixing device; the lower end of the multimeter is fixedly connected to the housing; the inner bottom end of the housing is provided with a fixing device which is slidably matched with the housing, and the upper end of the fixing device is provided with a transmission device III; the transmission devices I and II are arranged on the side of the housing, and the transmission devices I and II are matched with the corresponding transmission device III; the connecting device is fixedly connected to the outer upper ends of the transmission devices I and II.

A positioning method for a line leakage fault positioning device, the positioning method comprising the following steps:

Step 1: Insert the plug corresponding to the black test lead into the connecting device above the transmission device II, and then insert it into the corresponding jack;

Step 2: Insert the plug corresponding to the red test lead into the connecting device above the transmission device Ⅰ, and then insert it into the corresponding jack;

Step 3: After the black test lead plug is inserted into the corresponding jack, the suction cup is exposed. Place the suction cup on a flat surface to fix the multimeter.

Step 4: Then use black and red test leads to test the circuit and locate the leakage fault according to the readings.

Compared with the prior art, the beneficial effects of the present invention are: the present invention can not only fix the multimeter, but also facilitate movement, and at the same time prevent the plugs of the red and black test leads from loosening, and the present invention can also shrink the transmission device I, the transmission device II and the fixing device to reduce the space occupied during the movement, which is convenient for carrying.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view of a line leakage fault locating device according to the present invention;

Fig. 2 is a cross-sectional view taken along the A-A direction in Fig. 1;

Fig. 3 is a cross-sectional view taken along the B-B direction in Fig. 1;

FIG4 is a front view of a housing of a line leakage fault locating device according to the present invention;

5 is a side cross-sectional view of a housing of a line leakage fault locating device according to the present invention;

FIG6 is a schematic structural diagram of a transmission device I of a line leakage fault locating device according to the present invention;

7 is a schematic structural diagram of a transmission device II of a line leakage fault locating device according to the present invention;

8 is a front view of a connection device of a line leakage fault locating device according to the present invention;

9 is a side view of a connection device of a line leakage fault locating device of the present invention;

10 is a schematic structural diagram of a transmission device III of a line leakage fault locating device according to the present invention;

FIG. 11 is a schematic structural diagram of a fixing device of a line leakage fault locating device according to the present invention.

Detailed ways

The technical solution 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 only part of the embodiments of the invention, rather than 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 work are within the scope of protection of the present invention.

Specific implementation method 1: As shown in Figures 1-11, this implementation method describes a line leakage fault locating device, including a multimeter 1, a housing 2, a transmission device I3, a transmission device II4, a connecting device 5, a transmission device III6 and a fixing device 7; the lower end of the multimeter 1 is fixedly connected to the housing 2; the inner bottom end of the housing 2 is provided with a fixing device 7 that slides with the housing 2, and the upper end of the fixing device 7 is provided with a transmission device III6; the transmission devices I3 and II4 are arranged on the side of the housing 2, and the transmission devices I3 and II4 are matched with the corresponding transmission devices III6; the connecting device 5 is fixedly connected to the outer upper end of the transmission devices I3 and II4. The transmission device II4 is provided with one, the number of the transmission devices I3 is the same as the number of the red test pen jacks, and the number of the transmission devices III6 is equal to the sum of the number of the transmission devices II4 and I3.

The housing 2 includes a fixed shell 21 ; the top of the fixed shell 21 is hollowed out, and the fixed shell 21 is fixedly connected to the lower end of the multimeter 1 .

The fixing device 7 includes a slide plate 71, a slider 73, an inclined rod 74 and a suction cup 75; the slide plate 71 is arranged inside the fixed shell 21, and a T-shaped slide groove 72 is provided at the lower end of the slide plate 71; the slider 73 is slidably matched with the T-shaped slide groove 72; the outer side surface of the fixed shell 21 is provided with a conical groove 28, and the inner side surface of the fixed shell 21 is provided with an inclined groove 27 connected with the conical groove 28; the lower end of the slider 73 is fixedly connected with an inclined rod 74, and the inclined rod 74 is slidably matched with the corresponding inclined groove 27, and a suction cup 75 slidably matched with the conical groove 28 is hinged on the inclined rod 74. After the suction cup 75 is adsorbed on the adsorption surface, the spring III 76 at the lower end of the slide plate 71 is always in a compressed state, and the suction cup 75 can be adsorbed on a plane or on an inclined surface, which is convenient for fixing the multimeter and adapting to different scenes.

The transmission device III6 includes a rotating cylinder 61, a rectangular block 62, a round rod 63 and a transmission block 64; the rectangular block 62 is fixedly connected to the lower end of the multimeter 1; the rotating cylinder 61 is connected to the lower end of the multimeter 1 through a bearing, and the rectangular block 62 is located inside the rotating cylinder 61; the top of the round rod 63 is provided with a rectangular groove that slides with the rectangular block 62, the outer wall of the round rod 63 is provided with a spiral groove 66, and the round rod 63 slides with the rotating cylinder 61; the inner wall of the rotating cylinder 61 is fixedly connected with a transmission block 64 that slides with the spiral groove 66; the outer side of the rotating cylinder 61 is provided with a tooth groove 65; the lower end of the round rod 63 contacts the upper end surface of the slide plate 71. There are multiple transmission devices III6, and the multiple transmission devices III6 are respectively located on the side of the corresponding transmission devices I3 and II4, and cooperate with the corresponding transmission devices I3 and II4.

The transmission device I3 includes a sliding rod 31, a push block 32, a spring I33, a rotating rod 34, an L-shaped sliding rod 35 and an L-shaped connecting rod 36; a through hole I24 is provided on the side of the fixed shell 21; the horizontal ends of the sliding rod 31, the rotating rod 34 and the L-shaped sliding rod 35 are all slidably matched with the through hole I24; one end of the sliding rod 31 is hinged to the rotating rod 34, and the other end of the rotating rod 34 is fixedly connected to the horizontal end of the L-shaped sliding rod 35; a slideway 37 is provided at the lower end of the horizontal end of the L-shaped connecting rod 36, and the vertical end of the L-shaped sliding rod 35 is slidably matched with the slideway 37; the upper end of the vertical end of the L-shaped connecting rod 36 is fixedly connected to a connecting device 5; the push block 32 is sleeved on the sliding rod 31, one end of the spring I33 is fixedly connected to the inner wall of the fixed shell 21, and the other end of the spring I33 is fixedly connected to the push block 32; the push block 32 is matched with the corresponding tooth groove 65. The sliding of the L-shaped sliding rod 35 can control the sliding plate 71 to move upward, thereby preventing the suction cup 75 from moving into the conical groove 28 and wasting time for readjustment when it is used again.

The transmission device II4 includes a transmission rod 41, a spring II42, a movable rod I43 and a movable rod II44; a through hole II25 is provided on the side of the fixed shell 21; the transmission rod 41 and the movable rod I43 are both slidably matched with the through hole II25; one end of the transmission rod 41 is hinged to the movable rod I43, and the other end of the movable rod I43 is hinged to the movable rod II44; the upper end of the movable rod II44 is fixedly connected with a connecting device 5; one end of the spring II42 is fixedly connected to the inner wall of the fixed shell 21, and the other end of the spring II42 is fixedly connected to the side of the transmission rod 41; the side of the transmission rod 41 is provided with a protrusion that matches the corresponding tooth groove 65.

The connecting device 5 includes a fixed ring 51, a rotating plate 52 and an arc plate 54; the fixed ring 51 is fixedly connected to the upper ends of the vertical ends of the transmission rod 41 and the L-shaped connecting rod 36; an annular groove is provided on the inner wall of the fixed ring 51, the rotating plate 52 is connected in the annular groove through a bearing, and a circular hole 53 which is not coaxial with the fixed ring 51 is provided on the rotating plate 52; the arc plate 54 is fixedly connected to the inner wall of the fixed ring 51. By clamping the plug by the inner wall of the rotating plate 52 and the arc plate 54, the problem of the black and red test leads moving too far during the measurement process, which may cause the plug to become loose, can be avoided.

After the rotating plate 52 rotates, the circular hole 53 is coaxial with the jack 11 on the multimeter 1 .

The outer side of the fixed shell 21 is provided with a groove I22 that matches with the rotating rod 34, the L-shaped sliding rod 35 and the L-shaped connecting rod 36, and the groove I22 is connected with the through hole I24; the outer side of the fixed shell 21 is also provided with a groove II26 that matches with the movable rod I43 and the movable rod II44; the groove II26 is connected with the through hole II25, and the upper end of the groove II26 is provided with a circular groove 23 that matches with the corresponding fixed ring 51. After use, the rotating rod 34, the L-shaped sliding rod 35 and the L-shaped connecting rod 36 can be rotated around the hinge into the groove I22, and the movable rod I43 and the movable rod II44 can be moved downward around the hinge into the groove II26, which is convenient for storage and reduces the occupied space.

A positioning method for a line leakage fault positioning device, the positioning method comprising the following steps:

Step 1: Insert the plug corresponding to the black test lead into the connecting device 5 above the transmission device II 4, and then insert it into the corresponding jack 11;

Step 2: Insert the plug corresponding to the red test lead into the connecting device 5 above the transmission device Ⅰ3, and then insert it into the corresponding socket 11;

Step 3: After the plug of the black test lead is inserted into the corresponding socket 11, the suction cup 75 is exposed, and the suction cup 75 is adsorbed on a plane to fix the multimeter 1;

Step 4: Then use the black and red test leads to test the circuit and locate the leakage fault according to the readings.

The working principle of the present invention is: when using the device, the plug corresponding to the black test lead is inserted into the circular hole 53 of the connecting device 5 above the transmission device II 4, and then the plug is rotated so that the plug drives the rotating plate 52 to rotate through the circular hole 53, and rotates until the circular hole 53 is coaxial with the socket 11 on the multimeter 1. At this time, the plug is clamped by the inner wall of the circular hole 53 and the arc plate 54, and then the plug is pushed toward the direction of the socket 11 to insert the plug into the corresponding socket 11. During the movement of the plug, the movable rod II 44, the movable rod I 43 and the transmission rod 41 are driven to move toward the fixed shell 21 through the connecting device 5, so that The transmission rod 41 stretches the spring II 42, and drives the rotating drum 61 to rotate through the protrusion on its side and the tooth groove 65 on the corresponding transmission device III 6. The rotating drum 61 drives the round rod 63 to move downward through the transmission block 64, thereby pushing the slide plate 71 to move downward. The slide plate 71 compresses the spring III 76, and in the process of moving downward, pushes the slide block 73 to move in the opposite direction, thereby driving the inclined rod 74 and the suction cup 75 to move away from the fixed shell 21, so that the suction cup 75 is exposed outside the fixed shell 21; then the suction cup 75 is adsorbed on the plane; after the suction cup 75 is adsorbed, the slide plate 71 is prevented from moving upward;

Insert the plug corresponding to the red test lead into the connecting device 5 above the transmission device I3 in the above manner, and then insert it into the corresponding socket 11; during the insertion of the red test lead plug, the plug drives the L-shaped connecting rod 36 to move toward the fixed shell 21, and then drives the L-shaped sliding rod 35, the rotating rod 34 and the sliding rod 31 to move through the slideway 37 until the red test lead plug is completely inserted into the corresponding socket 11, at which time the horizontal end of the L-shaped sliding rod 35 contacts the push block 32;

Use black and red test leads to test the circuit and locate the leakage fault according to the readings;

When it is necessary to move, press the vertical end of the L-shaped sliding rod 35 of the transmission device Ⅰ3 corresponding to the red test lead plug with your hand, and push it in the direction of the fixed shell 21, so that the horizontal end of the L-shaped sliding rod 35 pushes the push block 32, and drives the push block 32 to move. The push block 32 cooperates with the tooth groove 65 on the transmission device III6 at the corresponding position, and drives the rotating drum 61 to rotate through the tooth groove 65, thereby driving the round rod 63 to move downward, so that the round rod 63 abuts against the upper end surface of the slide plate 71, and then pull the multimeter 1 to separate the suction cup 75 from the adsorption surface. When the round rod 63 corresponding to the position of the red test lead abuts against the upper end of the top plate 71 to prevent the top plate 71 from moving upward, thereby preventing the suction cup 75 from moving back to the original position. The sliding rod 31 and the rotating rod 34 slide in cooperation with the through hole III 29 on the rear side of the fixed shell 21. After moving to the predetermined position, the suction cup 75 is adsorbed at the predetermined position, and then the hand is released. Under the elastic force of the spring I 33, the push block 32 pushes the L-shaped sliding rod 35 to move to the original position, thereby driving the round rod 63 on the transmission device III 6 at the corresponding position to move upward to the original position.

After use, directly pull the multimeter 1 to separate the suction cup 75 from the adsorption surface. Under the joint action of spring III 76 and spring II 42, the slide plate 71 moves upward to push the round rod 63. Spring II 42 drives the transmission rod 41 to move away from the fixed shell 21, and then drives the corresponding rotating cylinder 61 to rotate in the opposite direction, so that the round rod 63 moves upward to its original position. The transmission rod 41 drives the connecting device 5 connected thereto to pull out the plug corresponding to the black test lead, and the top plate 71 moves to its original position, and drives the inclined rod 74 and the suction cup 75 to move into the conical groove 28, then pulls out the red test lead plug, and drives the rotating plate 52 to rotate, disengages from the arc plate 54, and finally pulls it out.

It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms of assembly without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (4)

1. A line leakage fault locating device, characterized in that it comprises a multimeter (1), a housing (2), a transmission device I (3), a transmission device II (4), a connecting device (5), a transmission device III (6) and a fixing device (7); the lower end of the multimeter (1) is fixedly connected to the housing (2); the inner bottom end of the housing (2) is provided with a fixing device (7) that is slidably matched with the housing (2), and the upper end of the fixing device (7) is provided with a transmission device III (6); the transmission device I (3) and the transmission device II (4) are arranged on the side of the housing (2), and the transmission device I (3) and the transmission device II (4) are matched with the corresponding transmission device III (6); the connecting device (5) is fixedly connected to the outer upper end of the transmission device I (3) and the transmission device II (4); The housing (2) comprises a fixed shell (21); the top end of the fixed shell (21) is hollowed out, and the fixed shell (21) is fixedly connected to the lower end of the multimeter (1); The fixing device (7) comprises a slide plate (71), a slider (73), an inclined rod (74) and a suction cup (75); the slide plate (71) is arranged inside the fixing shell (21), and a T-shaped slide groove (72) is provided at the lower end of the slide plate (71); the slider (73) is slidably matched with the T-shaped slide groove (72); the outer side surface of the fixing shell (21) is provided with a conical groove (28), and the inner side surface of the fixing shell (21) is provided with an inclined groove (27) connected with the conical groove (28); the lower end of the slider (73) is fixedly connected with an inclined rod (74), the inclined rod (74) is slidably matched with the corresponding inclined groove (27), and a suction cup (75) slidably matched with the conical groove (28) is hinged on the inclined rod (74); The transmission device III (6) comprises a rotating cylinder (61), a rectangular block (62), a round rod (63) and a transmission block (64); the rectangular block (62) is fixedly connected to the lower end of the multimeter (1); the rotating cylinder (61) is connected to the lower end of the multimeter (1) through a bearing, and the rectangular block (62) is located inside the rotating cylinder (61); the top end of the round rod (63) is provided with a rectangular groove that is slidably matched with the rectangular block (62), the outer wall of the round rod (63) is provided with a spiral groove (66), and the round rod (63) and the rotating cylinder (61) are slidably matched; the inner wall of the rotating cylinder (61) is fixedly connected with a transmission block (64) that is slidably matched with the spiral groove (66); the outer side of the rotating cylinder (61) is provided with a tooth groove (65); the lower end of the round rod (63) is in contact with the upper end surface of the slide plate (71); The transmission device I (3) comprises a sliding rod (31), a push block (32), a spring I (33), a rotating rod (34), an L-shaped sliding rod (35) and an L-shaped connecting rod (36); a through hole I (24) is provided on the side of the fixed shell (21); the horizontal ends of the sliding rod (31), the rotating rod (34) and the L-shaped sliding rod (35) are all slidably matched with the through hole I (24); one end of the sliding rod (31) is hinged to the rotating rod (34), and the other end of the rotating rod (34) is hinged to the horizontal end of the L-shaped sliding rod (35). The L-shaped connecting rod (36) is fixedly connected; the lower end of the horizontal end of the L-shaped connecting rod (36) is provided with a slideway (37), and the vertical end of the L-shaped sliding rod (35) is slidably matched with the slideway (37); the upper end of the vertical end of the L-shaped connecting rod (36) is fixedly connected with a connecting device (5); the push block (32) is sleeved on the sliding rod (31), one end of the spring I (33) is fixedly connected to the inner wall of the fixed shell (21), and the other end of the spring I (33) is fixedly connected to the push block (32); the push block (32) is matched with the corresponding tooth groove (65); The transmission device II (4) comprises a transmission rod (41), a spring II (42), a movable rod I (43) and a movable rod II (44); a side surface of the fixed shell (21) is provided with a through hole II (25); the transmission rod (41) and the movable rod I (43) are both slidably matched with the through hole II (25); one end of the transmission rod (41) is hinged to the movable rod I (43), and the other end of the movable rod I (43) is hinged to the movable rod II (44); the upper end of the movable rod II (44) is fixedly connected with a connecting device (5); one end of the spring II (42) is fixedly connected to the inner wall of the fixed shell (21), and the other end of the spring II (42) is fixedly connected to the side surface of the transmission rod (41); the side surface of the transmission rod (41) is provided with a protrusion matched with the corresponding tooth groove (65); The connecting device (5) comprises a fixed ring (51), a rotating plate (52) and an arc-shaped plate (54); the fixed ring (51) is fixedly connected to the upper ends of the vertical ends of the transmission rod (41) and the L-shaped connecting rod (36); an annular groove is provided on the inner wall of the fixed ring (51), the rotating plate (52) is connected in the annular groove via a bearing, and a circular hole (53) which is not coaxial with the fixed ring (51) is provided on the rotating plate (52); the arc-shaped plate (54) is fixedly connected to the inner wall of the fixed ring (51). 2. A line leakage fault locating device according to claim 1, characterized in that: after the rotating plate (52) rotates, the round hole (53) is coaxial with the socket (11) on the multimeter (1). 3. A line leakage fault locating device according to claim 1 or 2, characterized in that: the outer side of the fixed shell (21) is provided with a groove I (22) that cooperates with the rotating rod (34), the L-shaped sliding rod (35) and the L-shaped connecting rod (36), and the groove I (22) is connected with the through hole I (24); the outer side of the fixed shell (21) is also provided with a groove II (26) that cooperates with the movable rod I (43) and the movable rod II (44); the groove II (26) is connected with the through hole II (25), and the upper end of the groove II (26) is provided with a circular groove (23) that cooperates with the corresponding fixed ring (51). 4. A positioning method for a line leakage fault positioning device according to claim 3, characterized in that the positioning method comprises the following steps: Step 1: Insert the plug corresponding to the black test lead into the connecting device (5) above the transmission device II (4), and then insert it into the corresponding socket (11); Step 2: Insert the plug corresponding to the red test lead into the connecting device (5) above the transmission device I (3), and then insert it into the corresponding socket (11); Step 3: After the plug of the black test lead is inserted into the corresponding socket (11), the suction cup (75) is exposed, and the suction cup (75) is adsorbed on a plane to fix the multimeter (1); Step 4: Then use black and red test leads to test the circuit and locate the leakage fault according to the readings.