Clip-on ammeter

Abstract

The utility model discloses a clip-on ammeter, belonging to the ammeter technology field, the clip-on ammeter comprises an ammeter body and a reader, the ammeter body is electrically connected with the reader, the top end of the ammeter body is provided with an induction hook, the bottom end of the ammeter body is integrally formed with a connecting sleeve, the inner cavity of the connecting sleeve is provided with a connecting seat, the bottom end of the connecting seat is fixedly connected with an operating rod, and the operating rod is fixedly connected with the operating rod. The operating rod is composed of a folding rod capable of being folded and telescopic rods, the two telescopic rods are located at the two ends of the folding rod, the top ends of one telescopic rod are fixedly connected with the bottom end of the connecting base, and a positioning structure used for positioning the operating rod in an inner cavity of the connecting sleeve is arranged on the outer side wall of the connecting sleeve. Therefore, pole climbing operation is avoided, the safety risk is reduced, the flexibility during measurement is improved, and convenience is brought to low-voltage line current measurement work.

Description

TECHNICAL FIELD

[0001] The utility model relates to ammeter technical field, concretely is a clamp ammeter. BACKGROUND

[0002] The clamp ammeter is also called clamp meter, and it is an instrument for measuring the current size of the running electrical circuit, and when measuring the current, the measured circuit usually needs to be disconnected, so that the primary side of the ammeter or the transformer is connected in series to the circuit, and the clamp ammeter can be used to measure the current without disconnecting the circuit.

[0003] The currently used clamp ammeter has great safety risks in the process of developing the transformer and measuring the low-voltage line current, and the activity is limited on the tower and the transformer, and the reading of the clamp ammeter is not convenient, which brings inconvenience to the low-voltage line current measurement work.

[0004] According to the clamp ammeter provided in the announcement No. CN218240196U, it relates to the technical field of clamp ammeters, and includes a shell, a protection box, a clamping plate, a closing plate and a cable, the surface of the cable is sleeved with an elastic support plate, one side of the elastic support plate is fixedly connected with the inner wall of the clamping plate, one end of the cable away from the clamping plate is fixedly connected with a pinch plate, one side of the symmetrical pinch plate is fixedly connected with a return device, one end of the return device is fixedly connected with the inner wall of the shell, the inside of the protection box is fixedly connected with a display screen, one side of the display screen is fixedly connected with a coil, one end of the coil is sleeved with a second conductive column through the clamping plate, the inside of the closing plate is fixedly connected with a first conductive column, the first conductive column and the second conductive column form a closed loop, the design of the application increases the stability of the second conductive column through the symmetrical closure of the second conductive column and the first conductive column, and the stability of the electric wire is increased through the support column and the limiting ring, so that the measurement accuracy of the electric wire is increased.

[0005] According to the clamp ammeter introduced above, in the process of developing the transformer and measuring the low-voltage line current, it is necessary to climb the pole to contact the live equipment, which has great safety risks, and the activity is limited on the tower and the transformer, and the reading of the clamp ammeter is not convenient, which brings inconvenience to the low-voltage line current measurement work, so we need to propose a clamp ammeter. INVENTION CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of clamp-on ammeter, by the setting of operating lever, table body is connected with operating lever, according to the height of rack or tower, the height of operating lever is adjusted, then takes operating lever and drives table body to move, table body is contacted with line by inductive hook, the staff at bottom end can record the numerical value of measurement by reading device, to avoid pole climbing operation, reduce security risk, improve flexibility when measuring, bring convenience to low-voltage line current measurement work, to solve the problem raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of clamp-on ammeter, including table body and reading device, the table body is electrically connected with reading device, the top of the table body is equipped with inductive hook, the bottom of the table body is integrally formed with connecting sleeve, the inner chamber of the connecting sleeve is provided with connecting seat, the bottom of the connecting seat is fixedly connected with operating lever, the operating lever is composed of folding rod and telescopic rod that can be folded, the telescopic rod is provided with two groups, two groups The telescopic rod is located at the two ends of folding rod, the top of one group of telescopic rod is fixedly connected with the bottom of connecting seat, the outer wall of connecting sleeve is provided with positioning structure for positioning the position of operating lever in the inner chamber of connecting sleeve.

[0008] Preferably, the folding rod includes an upper rod body and a lower rod body, the bottom of the upper rod body is fixedly connected with a fixed seat, the top of the lower rod body is fixedly connected with a support seat, one end of the fixed seat and the support seat is hinged through a connecting shaft, the other end of the fixed seat and the support seat is respectively provided with a clamping block and a fixed plate, the clamping block is fixedly connected to the outer wall of the fixed seat, the fixed plate is rotatably connected to the outer wall of the support seat through a damping pivot, and the fixed plate is L-shaped.

[0009] Preferably, the telescopic rod includes a movable rod and an adjusting tube, the surface of the movable rod is inserted and slides with the inner chamber of the adjusting tube, the outer surface of the adjusting tube is provided with a threaded hole, the inner chamber of the threaded hole is threadedly connected with a screw rod, one end of the screw rod away from the inner chamber of the adjusting tube is fixedly connected with a knob, and the top of one group of the adjusting tubes is fixedly connected with the bottom of the connecting seat.

[0010] Preferably, the surface of the movable rod is provided with an adjusting hole, the inner chamber of the adjusting hole is matched with the screw rod for clamping, the adjusting hole is provided with a plurality of groups, and the adjusting holes of the plurality of groups are equidistantly distributed on the outer surface of the movable rod.

[0011] Preferably, the two sides of the movable rod are fixedly connected with sliding blocks, the inner wall of the adjusting tube is provided with a notch, and the sliding blocks are slidably connected with the inner chamber of the notch of the adjusting tube.

[0012] Preferably, the top end of the connecting seat is fixedly connected with a fixed block, the lower surface of the table body is provided with a fixed groove matched with the fixed block, and the fixed block is in clamped connection with the inner cavity of the fixed groove.

[0013] Preferably, the surface of the table body is hingedly connected with a protective cover, and the protective cover is transparent.

[0014] Preferably, the positioning structure comprises a positioning frame fixedly connected to the outer side wall of the connecting sleeve, a through hole is formed in the surface of the positioning frame, a positioning rod is inserted and slidably connected in the inner cavity of the through hole of the positioning frame, a positioning hole is formed in the surface of the connecting seat, and one end of the positioning rod penetrates through the connecting sleeve and is in clamped connection with the inner cavity of the positioning hole.

[0015] Preferably, a limiting block is arranged on the outer surface of the positioning rod, the limiting block is located between the positioning frame and the connecting sleeve, and a spring is further arranged on the outer surface of the positioning rod, and the spring is located between the limiting block and the supporting frame.

[0016] Preferably, the outer surface of the adjusting pipe is attached with an insulating rubber pad, and the outer surface of the insulating rubber pad is provided with anti-skid lines.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model provides a clamp type ammeter, through the setting of operating rod, connecting table body and operating rod, according to the height of rack or tower, the height of operating rod is adjusted, then operating rod is taken and drives table body to move, and table body is contacted with line through inductive hook, and the staff at the bottom can record the measured value through reading device, thereby avoiding pole climbing operation, reducing the security risk, improving the flexibility when measuring, and bringing the convenience for low-voltage line current measurement work.

[0019] Other features and advantages of the present application will be further described in the following specification, and some of them will become apparent from the specification, or will be understood from the specification, or will be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structure indicated in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic view of the utility model;

[0021] Figure 2 It is the exploded structure schematic view of the operating rod of the utility model;

[0022] Figure 3 It is shown that Figure 2 It is the local enlarged view of A in the specification;

[0023] Figure 4The utility model discloses a whole adjusting pipe's structural schematic diagram.

[0024] Figure 5 The utility model discloses a watch body's structure schematic diagram of dismounting connecting seat.

[0025] Figure 6 The utility model discloses a watch body's structure schematic diagram of looking up.

[0026] In the drawing: 1, watch body;2, reader;3, inductive hook;4, connecting sleeve;5, connecting seat;6, folding rod;61, upper rod body;62, lower rod body;63, fixed seat;64, support seat;65, clamping block;66, fixed plate;7, telescopic rod;71, movable rod;72, adjusting pipe;73, screw hole;74, screw;75, button block;8, positioning structure;81, positioning frame;82, positioning rod;83, positioning hole;9, adjusting hole;10, sliding block;11, fixed block;12, fixed groove;13, protective cover;14, limiting block;15, spring;16, insulating rubber pad. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of the utility model protection.

[0028] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a clamp ammeter includes watch body 1 and reader 2, watch body 1 is electrically connected with reader 2, to facilitate the electrification between watch body 1 and reader 2, the top end of watch body 1 is equipped with inductive hook 3, inductive hook 3 is at the top of watch body 1, to facilitate inductive hook 3 fixed on the top of watch body 1, the bottom end of watch body 1 is integrally formed with connecting sleeve 4, to facilitate connecting sleeve 4 fixed on the bottom end of watch body 1, to facilitate guarantee the connection stability between connecting sleeve 4 and watch body 1, strengthen the connecting effect between connecting sleeve 4 and watch body 1, avoid the disengagement between connecting sleeve 4 and watch body 1.

[0029] Furthermore, the connecting sleeve 4 has an inner cavity, and a connecting seat 5 is provided in the inner cavity of the connecting sleeve 4 so that the connecting seat 5 can be fixed to the inner side of the connecting sleeve 4. An operating rod is fixedly connected to the bottom end of the connecting seat 5. The operating rod is arranged relative to the bottom of the connecting seat 5 and is located on one side of the connecting seat 5. Therefore, the operating rod consists of a foldable folding rod 6 and a telescopic rod 7. Optionally, two sets of telescopic rods 7 are provided, and both sets of telescopic rods 7 are located at both ends of the folding rod 6. The top end of one set of telescopic rods 7 is fixedly connected to the bottom end of the connecting seat 5 so that the connecting seat 5 can extend and retract with the extension and retraction of the telescopic rod 7, thereby facilitating the adjustment of the position of the connecting seat 5. The outer wall of the connecting sleeve 4 is provided with a positioning structure 8 for positioning the operating rod in the inner cavity of the connecting sleeve 4.

[0030] In this embodiment, as Figures 1-6 As shown, when measuring lines on a test platform or tower, the length of the operating rod is first adjusted according to the height of the test platform or tower. After adjusting the length of the operating rod, it is connected to the meter body 1. Then, the operating rod is picked up to move the meter body 1. The meter body 1 contacts the line through the induction hook 3. The staff at the bottom can record the measured value through the reader 2, thereby avoiding pole climbing, reducing safety risks, improving the flexibility of measurement, and bringing convenience to low-voltage line current measurement work.

[0031] In a preferred embodiment of this application, the folding rod 6 includes an upper rod body 61 and a lower rod body 62. The bottom end of the upper rod body 61 is fixedly connected to a fixing seat 63, and the top end of the lower rod body 62 is fixedly connected to a support seat 64. One end of the fixing seat 63 and the support seat 64 are hinged through a connecting shaft so that the fixing seat 63 and the support seat 64 can move relative to each other, thereby facilitating the folding of the upper rod body 61 and the lower rod body 62 through the fixing seat 63 and the support seat 64.

[0032] Furthermore, the other ends of the fixed base 63 and the support base 64 are respectively provided with a locking block 65 and a fixing plate 66. The locking block 65 is fixedly connected to the outer wall of the fixed base 63, and the fixing plate 66 is rotatably connected to the outer wall of the support base 64 through a damping pivot. The fixing plate 66 is L-shaped. By cooperating with the locking block 65 and the fixing plate 66, the rotation angle of the fixing plate 66 can be adjusted to fix the connection between the upper rod 61 and the lower rod 62, so that the upper rod 61 and the lower rod 62 can be folded together, reducing the space occupied by the operating rod when it is stored.

[0033] At this time, when the upper rod 61 and the lower rod 62 are in the open state, the fixing plate 66 drives the locking block 65 to engage with the support base 64, so that the locking block 65 restricts the position of the support base 64, thereby making it easy for the upper rod 61 and the lower rod 62 to remain in the open state. When the upper rod 61 and the lower rod 62 need to be folded, the fixing plate 66 drives the locking block 65 to disengage from the support base 64 under the action of external force, so that the locking block 65 is not restricted in position by the support base 64, thereby making it easy for the upper rod 61 and the lower rod 62 to swing, so as to realize that the upper rod 61 and the lower rod 62 are in the folded state.

[0034] Furthermore, the telescopic rod 7 includes a movable rod 71 and an adjusting tube 72. The surface of the movable rod 71 is inserted into and slides with the inner cavity of the adjusting tube 72. The inner contour of the adjusting tube 72 is clearance-fitted with the outer contour of the movable rod 71 to facilitate adjustment of the position of the adjusting tube 72 relative to the movable rod 71.

[0035] Meanwhile, a threaded hole 73 is provided on the outer surface of the adjusting tube 72. A screw 74 is threadedly connected to the inner cavity of the threaded hole 73. A button 75 is fixedly connected to the end of the screw 74 away from the inner cavity of the adjusting tube 72 so that the button 75 can drive the screw 74 to rotate, thereby facilitating the adjustment of the position of the screw 74 relative to the threaded hole 73. The top end of a set of adjusting tubes 72 is fixedly connected to the bottom end of the connecting seat 5 so that the connecting seat 5 can extend and retract with the extension and retraction of the adjusting tube 72 relative to the movable rod 71, thereby facilitating the adjustment of the position of the connecting seat 5. Through the cooperation of the threaded hole 73 and the screw 74, rotating the button 75 drives the screw 74 to rotate. When the surface of the screw 74 is in contact with the surface of the movable rod 71, the friction between the surface of the screw 74 and the surface of the movable rod 71 positions the movable rod 71 after it has moved within the adjusting tube 72.

[0036] In addition, such as Figures 2-6 As shown, the surface of the movable rod 71 is provided with adjustment holes 9. The inner cavity of the adjustment hole 9 is engaged with the screw 74. Several sets of adjustment holes 9 are provided. The threaded hole 73 is arranged relative to any one of the adjustment holes 9. Several sets of adjustment holes 9 are evenly distributed on the outer surface of the movable rod 71. By setting the adjustment holes 9, the stability of the movable rod 71 after the screw 74 positions it is increased. By setting the adjustment holes 9, the adjustable range of the movable rod 71 within the adjustment tube 72 is increased.

[0037] At this time, when the movable rod 71 and the adjusting pipe 72 need to be adjusted, the knob 75 is manually rotated to drive the screw rod 74 to rotate, so that the screw rod 74 is separated from the adjusting hole 9 and the screw hole 73, thereby the screw rod 74 does not limit the position between the movable rod 71 and the adjusting pipe 72, and the movable rod 71 and the adjusting pipe 72 are adjusted, when the movable rod 71 and the adjusting pipe 72 are adjusted to the specified position, the screw hole 73 is aligned with the specified adjusting hole 9, the knob 75 is manually driven to pass through the screw hole 73 and the adjusting hole 9, so that the screw rod 74 limits the position between the movable rod 71 and the adjusting pipe 72, and the position between the movable rod 71 and the adjusting pipe 72 is kept.

[0038] It is worth noting that the movable rod 71 is fixedly connected with the sliding block 10 on both sides, the sliding block 10 is on the outer surface of the movable rod 71, the inner side wall of the adjusting pipe 72 is provided with a notch, the sliding block 10 is slidably connected with the inner cavity of the notch of the adjusting pipe 72, and the outer contour of the sliding block 10 is arranged in a gap with the inner contour of the notch of the adjusting pipe 72. Through the cooperation of the sliding block 10 and the notch of the adjusting pipe 72, the two sides of the movable rod 71 are supported, so that the sliding block 10 limits the movement position of the two sides of the notch of the adjusting pipe 72, avoids the angle of the movable rod 71 from being deviated when moving in the adjusting pipe 72, improves the stability of the movable rod 71 when moving, ensures the smoothness of the movement between the adjusting pipe 72 and the movable rod 71, ensures the position accuracy between the adjusting pipe 72 and the movable rod 71, prevents the screw hole 73 of the adjusting pipe 72 from deviating from the adjusting hole 9 of the movable rod 71, and facilitates the screw hole 73 of the adjusting pipe 72 and the adjusting hole 9 of the movable rod 71 being on the same axis.

[0039] Specifically, as shown in Figure 4 The top end of the connecting seat 5 is fixedly connected with the fixed block 11, the lower surface of the table body 1 is provided with the fixed groove 12 matched with the fixed block 11, so that the outer contour of the fixed block 11 is matched with the inner contour of the fixed groove 12, and the fixed block 11 is clamped and connected with the inner cavity of the fixed groove 12. The fixed block 11 is connected with the fixed groove 12 through clamping, and the connecting seat 5 is connected with the table body 1 through the fixed block 11 and the fixed groove 12, so as to support the connecting part of the connecting seat 5 and the table body 1, improve the stability of the operating rod after being connected with the table body 1, avoid the angle from being deviated, and ensure the position accuracy between the operating rod and the table body 1.

[0040] Preferably, the surface of the meter body 1 is hingedly connected with a protective cover 13, so that the protective cover 13 can move relative to the meter body 1, thereby adjusting the position of the protective cover 13 relative to the meter body 1. The protective cover 13 is transparent, so that the user can observe the inside of the meter body 1 through the protective cover 13. The protective cover 13 can protect the buttons and screen on the surface of the meter body 1, preventing the buttons and screen from being impacted by external debris, thereby preventing damage to the buttons and screen and prolonging the service life of the clamp ammeter.

[0041] In addition, as shown in Figure 3 The positioning structure 8 includes a positioning bracket 81 fixedly connected to the outer side wall of the connecting sleeve 4. The surface of the positioning bracket 81 is provided with a through hole, and a positioning rod 82 is slidingly inserted into the inner cavity of the through hole of the positioning bracket 81, so that the positioning rod 82 can slide relative to the through hole of the positioning bracket 81, thereby adjusting the position of the positioning rod 82 relative to the through hole of the positioning bracket 81. The surface of the connecting seat 5 is provided with a positioning hole 83 arranged opposite to the through hole of the positioning bracket 81. One end of the positioning rod 82 penetrates through the connecting sleeve 4 and is detachably connected to the inner cavity of the positioning hole 83. The positioning rod 82 is moved into the inner cavity of the positioning hole 83, so that the positioning rod 82 limits the position of the positioning hole 83, thereby achieving the positioning connection between the connecting seat 5 and the connecting sleeve 4 through the cooperation of the positioning rod 82 and the positioning hole 83. The position of the connecting seat 5 in the connecting sleeve 4 can be positioned, ensuring the position accuracy of the connecting seat 5 relative to the connecting sleeve 4. When the positioning rod 82 moves out of the inner cavity of the positioning hole 83, the positioning rod 82 does not limit the positioning hole 83, so that the connecting seat 5 can be separated from the connecting sleeve 4. The connecting seat 5 can be connected or separated from the connecting sleeve 4, achieving the installation and disassembly of the operating rod and the meter body 1, so that the operating rod can be connected or separated from the meter body 1. When the operating rod is connected to the meter body 1, the meter body 1 can stretch and contract with the movable rod 71 and the adjusting tube 72 of the operating rod, thereby extending the distance between the meter body 1 and the ground.

[0042] Preferably, the outer surface of the positioning rod 82 is provided with a limiting block 14 located between the positioning frame 81 and the connecting sleeve 4, and the outer surface of the positioning rod 82 is further sleeved with a spring 15 located between the limiting block 14 and the supporting frame. Through the cooperation of the limiting block 14 and the spring 15, the supporting force is provided by the spring 15 rebounding, so that the spring 15 exerts an elastic force on the limiting block 14 to push the limiting block 14 to move towards the positioning hole 83, and the positioning rod 82 moves towards the positioning hole 83, thereby improving the stability of the positioning rod 82 in the inner cavity of the positioning hole 83, so that the positioning rod 82 is always in the positioning hole 83 without external force. When the positioning rod 82 is pressed under the action of external force, the positioning rod 82 drives the spring 15 to compress, so that the spring 15 drives the positioning rod 82 to move under the action of the reaction force, so that the positioning rod 82 is separated from the positioning hole 83, and when the positioning rod 82 is not limited in the positioning hole 83, the connecting seat 5 is separated from the connecting sleeve 4, so that the operating rod is separated from the table body 1, and the disassembly and assembly convenience of the table body 1 and the operating rod is improved.

[0043] Further, the outer surface of the adjusting pipe 72 is bonded with an insulating rubber pad 16, and the outer surface of the insulating rubber pad 16 is provided with anti-skid lines, so as to increase the friction between the worker and the adjusting pipe 72. Through the setting of the insulating rubber pad 16, the current is prevented from being transmitted to the hands of the worker through the operating rod, and the safety effect during operation is improved.

[0044] Specific use: when measuring the line on the rack or the tower, first, according to the height of the rack or the tower, pull the two ends of the movable rod 71, so that the movable rod 71 moves in the adjusting pipe 72, then rotate the knob 75 to drive the screw rod 74 to rotate, and through the threaded connection, the screw rod 74 moves to the inner cavity of the adjusting hole 9, so as to position the position of the movable rod 71 in the adjusting pipe 72, then the upper rod body 61 and the lower rod body 62 are combined, the fixed plate 66 is rotated to be clamped with the clamping block 65, finally, the operating rod with the adjusted length is connected with the table body 1, the connecting seat 5 is inserted into the inner cavity of the connecting sleeve 4, the positioning rod 82 is released, the positioning rod 82 is inserted into the inner cavity of the positioning hole 83 through the rebound of the spring 15, the connection between the operating rod and the table body 1 is realized, finally, the table body 1 is contacted with the line through the induction hook 3, and the worker at the bottom end can record the measured value through the reader 2, so as to avoid climbing the rod, reduce the safety risk, improve the flexibility during measurement, and bring convenience for low-voltage line current measurement work.

[0045] Compared with the prior art, the beneficial effects of the utility model are:

[0046] Through the setting of the operating rod, the table body 1 is connected with the operating rod, the height of the operating rod is adjusted according to the height of the rack or the tower, then the operating rod is taken to drive the table body to move, the table body 1 is contacted with the line through the induction hook 3, and the staff at the bottom end can record the measured value through the reader, so that the pole climbing operation is avoided, the safety risk is reduced, the flexibility during measurement is improved, and convenience is brought to the low-voltage line current measurement work.

[0047] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A clamp-on ammeter comprising a meter body (1) and a readout device (2), characterized in that: Also include operating lever, positioning structure (8); The table body (1) is electrically connected with the reader (2), the top end of the table body (1) is provided with an induction hook (3), and the bottom end of the table body (1) is integrally formed with a connecting sleeve (4), and the inner cavity of the connecting sleeve (4) is provided with a connecting seat (5); The operating lever is composed of a folding rod (6) and a telescopic rod (7), the telescopic rod (7) is provided with two groups, and the two groups of telescopic rods (7) are located at both ends of the folding rod (6), one end of one group of telescopic rods (7) is fixedly connected with the bottom end of the connecting seat (5); The positioning structure (8) is arranged on the outer side wall of the connecting sleeve (4).

2. A clamp-on ammeter according to claim 1, characterised in that: The folding rod (6) includes an upper rod body (61) and a lower rod body (62), the bottom end of the upper rod body (61) is fixedly connected with a fixed seat (63), the top end of the lower rod body (62) is fixedly connected with a supporting seat (64), the fixed seat (63) and one end of the supporting seat (64) are hinged through a connecting shaft, the other end of the fixed seat (63) and the supporting seat (64) are respectively provided with a clamping block (65) and a fixed plate (66), the clamping block (65) is fixedly connected to the outer side wall of the fixed seat (63), the fixed plate (66) is rotatably connected to the outer side wall of the supporting seat (64) through a damping rotating shaft, and the fixed plate (66) is arranged in an L shape.

3. A clamp-on ammeter according to claim 1, characterised in that: The telescopic rod (7) includes a movable rod (71) and an adjusting tube (72), the surface of the movable rod (71) is inserted and slidably connected with the inner cavity of the adjusting tube (72), the outer surface of the adjusting tube (72) is provided with a threaded hole (73), the inner cavity of the threaded hole (73) is threadedly connected with a screw rod (74), one end of the screw rod (74) away from the inner cavity of the adjusting tube (72) is fixedly connected with a button block (75), and the top end of one group of the adjusting tube (72) is fixedly connected with the bottom end of the connecting seat (5).

4. A clamp-on ammeter according to claim 3, wherein: The surface of the movable rod (71) is provided with an adjusting hole (9), the inner cavity of the adjusting hole (9) is matched with the screw rod (74) and is clamped, the adjusting hole (9) is provided with a plurality of groups, and the plurality of groups of adjusting holes (9) are distributed at equal distances on the outer surface of the movable rod (71).

5. A clamp-on ammeter according to claim 3, wherein: The movable rod (71) is fixedly connected with a sliding block (10) on both sides, and the inner side wall of the adjusting tube (72) is provided with a notch.

6. A clamp-on ammeter according to claim 1, wherein: The top end of the connecting seat (5) is fixedly connected with a fixed block (11), the lower surface of the table body (1) is provided with a fixed groove (12) matched with the fixed block (11), and the fixed block (11) is matched and clamped with the inner cavity of the fixed groove (12).

7. The clamp-on ammeter of claim 1, wherein: The surface of the table body (1) is hinged with a protective cover (13), and the protective cover (13) is transparent.

8. The clamp-on ammeter of claim 1, wherein: The positioning structure (8) comprises a positioning frame (81) fixedly connected to the outer side wall of the connecting sleeve (4), a through hole is formed in the surface of the positioning frame (81), a positioning rod (82) is inserted and slid in the inner cavity of the through hole of the positioning frame (81), a positioning hole (83) is formed in the surface of the connecting seat (5), and one end of the positioning rod (82) penetrates through the connecting sleeve (4) and is matched and clamped in the inner cavity of the positioning hole (83).

9. A clamp-on ammeter according to claim 8, wherein: A limiting block (14) is arranged on the outer surface of the positioning rod (82), the limiting block (14) is located between the positioning frame (81) and the connecting sleeve (4), and a spring (15) is further sleeved on the outer surface of the positioning rod (82).

10. A clamp-on ammeter according to claim 3, wherein: The outer surface of the adjusting pipe (72) is bonded with an insulating rubber pad (16), and the outer surface of the insulating rubber pad (16) is provided with anti-skid lines.

Images