Electro-electronic anti-creeping electromagnetic measuring device

Abstract

The invention discloses an electronic and electrical anti-creeping electromagnetic measuring device which comprises an electromagnetic detection meter, a clamping plate is fixedly installed at the bottom end of the electromagnetic detection meter, a transverse sliding frame is arranged in the clamping plate, and a longitudinal guide rail structure is arranged in the transverse sliding frame. The invention relates to the technical field of electric leakage measurement equipment. According to the electronic and electrical anti-creeping electromagnetic measuring device, when it is detected that the device is close to the electric leakage position, the transverse scale plate is rotated to be perpendicular to the longitudinal scale plate, the electromagnetic detection surface is attached to the position close to the electric leakage position, and at the moment, the transverse scale plate and the longitudinal scale plate form coordinates near the electric leakage position; the position of the electromagnetic inductor is continuously moved through the longitudinal scale plate capable of sliding and the second sliding assembly, when the degree in the electromagnetic inductor is the maximum value, the electromagnetic inductor corresponds to the position of the electric leakage position, compared with the prior art, the detection precision of the electric leakage position can be effectively improved, and the electric leakage position can be conveniently maintained.

Description

Technical Field

[0001] The invention relates to the technical field of leakage measuring equipment, in particular to an electronic and electrical anti-leakage electromagnetic measuring device. Background Art

[0002] Electromagnetic field testers are instruments used to reliably and quickly measure electromagnetic radiation emitted by electrical wires, household appliances, industrial equipment, etc.; In order to ensure the aesthetics of the house, wires are usually buried in the wall or in the ground. However, in this case, if the wires age and leak electricity, it is difficult to locate the leakage. In the prior art, electricians usually hold electromagnetic measuring equipment to move and detect the leakage of wires or use adjustment equipment to push the measuring equipment to move to locate the magnetic field generated at the leakage point, so as to achieve the purpose of locating the leakage position, and then mark it to facilitate the determination of the leakage position after power failure, and to carry out maintenance by removing the wall or the ground; However, in the existing technology, the accuracy of manual handheld measurement may be low, and the measurement equipment can only be moved continuously in one direction by adjusting the equipment, which leads to large deviations in the measurement results, thus affecting the subsequent inspection of the leakage point.

[0003] Therefore, those skilled in the art provide an electronic and electrical leakage prevention electromagnetic measuring device to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide an electronic and electrical leakage prevention electromagnetic measuring device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: The above technical objectives of the present invention are achieved through the following technical solutions: An electronic and electrical anti-leakage electromagnetic measuring device comprises an electromagnetic detection meter, a clamping plate is fixedly installed at the bottom end of the electromagnetic detection meter, a transverse sliding frame is arranged inside the clamping plate, and a longitudinal guide rail structure is arranged inside the transverse sliding frame; The clamping plate includes a bottom plate, the bottom plate is fixedly connected to the bottom end of the electromagnetic detection meter, guide plates are arranged on both sides of the bottom plate, and a mounting platform is arranged on the end sides of the two guide plates; The transverse sliding frame includes a fixing plate, which is installed between the two guide plates and fixedly connected to the mounting platform, and one end of the fixing plate away from the mounting platform is rotatably connected to a transverse scale plate, and a transverse sliding groove is arranged inside the transverse scale plate; The longitudinal guide rail structure includes a transverse slider, which is slidably arranged inside the transverse slide groove. The first sliding components are arranged at both ends of the transverse slider. The bottom end of the transverse slider is hinged with a longitudinal scale plate through a connecting hinge. The longitudinal scale plate is provided with a longitudinal slide groove inside. An electromagnetic inductor is slidably arranged inside the longitudinal slide groove, and a second sliding component is arranged on the outer peripheral wall of the electromagnetic inductor.

[0006] Furthermore, a positioning protrusion is provided on one end of the inner side of the guide plate close to the mounting platform, and a rubber pad is fixedly provided on the end of the positioning protrusion.

[0007] Furthermore, a sliding groove is provided at one end of the guide plate away from the mounting platform, a locking plate is provided inside the sliding groove, the distance between the locking plate and the bottom plate is equal to the thickness of the transverse scale plate, a pulling plate is fixedly provided on the end wall of the locking plate, and a lifting spring fixedly connected to the guide plate is provided on the outer peripheral wall of the pulling plate.

[0008] Furthermore, the connecting hinge includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are both set in the shape of a right-angled isosceles triangle, and the hypotenuse is set at an angle of forty-five degrees to the side of the horizontal slider, the first connecting plate is fixedly connected to the horizontal slider, the second connecting plate is fixedly connected to the longitudinal scale plate, and the first connecting plate and the second connecting plate are rotationally connected by an axle.

[0009] Furthermore, a limiting platform is provided at one end of the transverse scale plate away from the fixing plate, and the bottom surface of the limiting platform is flush with the bottom surface of the mounting platform.

[0010] Furthermore, a positioning bracket is provided on the end wall of the bottom plate, and the positioning bracket is fixedly connected to the electromagnetic detection meter.

[0011] Furthermore, the first sliding assembly includes a side plate, which is fixedly connected to the end wall of the transverse sliding block, a compression spring is arranged on the inner side of the side plate, a friction plate is arranged at the end of the compression spring, and the friction plate is in contact with the transverse scale plate.

[0012] Furthermore, the second sliding assembly includes a top frame, which is sleeved on the outer wall of the electromagnetic inductor and fixedly connected to the electromagnetic inductor. Both ends of the top frame are provided with fixing grooves, and damping plates are arranged inside the fixing grooves. A supporting spring is arranged at the bottom end of the damping plate.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects: 1. This kind of electronic and electrical leakage prevention electromagnetic measuring device, when detecting the vicinity of the leakage, the horizontal scale plate is rotated to be perpendicular to the vertical scale plate, and the electromagnetic detection table is attached near the leakage. At this time, the horizontal scale plate and the vertical scale plate form coordinates near the leakage. The position of the electromagnetic inductor is continuously moved by the slidable vertical scale plate and the second sliding component. When the degree in the electromagnetic inductor is the maximum value, the electromagnetic inductor corresponds to the position of the leakage. Compared with the prior art, it can effectively improve the accuracy of leakage detection, so as to facilitate the maintenance of the leakage. 2. The electronic electrician anti-leakage electromagnetic measuring device rotates the longitudinal scale plate along the connecting hinge so that the longitudinal scale plate and the transverse scale plate form a right angle, and rotates the transverse scale plate along the hinge with the fixed plate so that the transverse scale plate and the bottom plate are perpendicular to each other. When the electrician holds the electromagnetic detection meter, the bottom end of the electromagnetic detection meter has a bracket of a certain length, so that the electromagnetic sensor can be close to the ground when the electrician stands upright, which can avoid the electrician bending over to detect the leakage, so as to improve the comfort during detection; 3. In this electronic and electrical anti-leakage electromagnetic measuring device, since the bottom surface of the limit platform is flush with the bottom surface of the mounting platform, when the electromagnetic measuring meter is pressed against the ground or the wall, the limit platform and the mounting platform can provide better support for the horizontal scale plate and the electromagnetic measuring meter to avoid the electromagnetic measuring meter from shaking, thereby further improving the stability of the electromagnetic sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention; Figure 2 It is a structural schematic diagram of the back of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention; Figure 3 This is a schematic diagram of the structure of a clamping plate of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the structure of a clamping plate of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention. Figure 2 ; Figure 5 It is a structural schematic diagram of a transverse sliding frame and a longitudinal guide rail structure of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention; Figure 6 It is a schematic structural diagram of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention after the longitudinal guide rail structure is flipped; Figure 7 It is a schematic structural diagram of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention after the lateral sliding frame is flipped; Figure 8 It is a structural schematic diagram of a first sliding component and a connecting hinge of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention; Fig. 9 It is a structural schematic diagram of a second sliding component of an electronic and electrical leakage prevention electromagnetic measuring device of the present invention.

[0016] In the figure, 1, electromagnetic detection table; 2, clamping plate; 21, bottom plate; 22, guide plate; 23, mounting table; 24, positioning protrusion; 25, rubber pad; 26, sliding groove; 27, pull plate; 28, lifting spring; 29, locking plate; 3, horizontal sliding frame; 31, fixing plate; 32, horizontal scale plate; 33, horizontal slide groove; 4, longitudinal guide rail structure; 41, horizontal slider; 42, connecting hinge; 421, first connecting plate; 422, second connecting plate; 423, shaft; 43, longitudinal scale plate; 44, longitudinal slide groove; 5, electromagnetic inductor; 6, first sliding assembly; 61, side plate; 62, compression spring; 63, friction plate; 7, second sliding assembly; 71, top frame; 72, fixing groove; 73, damping plate; 74, support spring; 8, limit table; 9, positioning bracket. DETAILED DESCRIPTION

[0017] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments: Example: Reference Figure 1 - Fig. 9 The present invention discloses an electromagnetic measuring device for preventing leakage of electronic and electrical equipment, comprising an electromagnetic detection meter 1, a clamping plate 2 is fixedly installed at the bottom end of the electromagnetic detection meter 1, a transverse sliding frame 3 is arranged inside the clamping plate 2, and a longitudinal guide rail structure 4 is arranged inside the transverse sliding frame 3; The clamping plate 2 includes a bottom plate 21, the bottom plate 21 is fixedly connected to the bottom end of the electromagnetic detection meter 1, guide plates 22 are arranged on both sides of the bottom plate 21, and a mounting platform 23 is arranged on the end sides of the two guide plates 22; The transverse sliding frame 3 includes a fixing plate 31, which is installed between the two guide plates 22 and fixedly connected to the mounting platform 23. One end of the fixing plate 31 away from the mounting platform 23 is rotatably connected to a transverse scale plate 32, and a transverse slide groove 33 is arranged inside the transverse scale plate 32. The longitudinal guide rail structure 4 includes a transverse slider 41, which is slidably arranged inside the transverse slide groove 33. First sliding components 6 are arranged at both ends of the transverse slider 41. The bottom end of the transverse slider 41 is hinged with a longitudinal scale plate 43 through a connecting hinge 42. A longitudinal slide groove 44 is opened inside the longitudinal scale plate 43. An electromagnetic sensor 5 is slidably arranged inside the longitudinal slide groove 44. A second sliding component 7 is arranged at the bottom end of the electromagnetic sensor 5, wherein the electromagnetic sensor 5 is connected to the electromagnetic detection meter 1 through a wire.

[0018] In this embodiment, when in use, the electrician holds the handles provided on both sides of the electromagnetic detection meter 1, and makes the display screen of the electromagnetic detection meter 1 face himself, and then rotates the longitudinal scale plate 43 along the connecting hinge 42, so that the longitudinal scale plate 43 and the transverse scale plate 32 form a right angle, such as Figure 6 As shown, the horizontal scale plate 32 is rotated along the hinge with the fixing plate 31 so that the horizontal scale plate 32 and the bottom plate 21 are perpendicular to each other, as shown in FIG. Figure 7 As shown, when the electrician holds the electromagnetic detection meter 1, the bottom end of the electromagnetic detection meter 1 has a bracket of a certain length, so that the electromagnetic sensor 5 can be close to the ground when the electrician stands upright, which can avoid the electrician bending over to detect the leakage, so as to improve the comfort during detection; When the leakage is detected, the horizontal scale plate 32 is rotated to be flush with the bottom plate 21. Figure 6 As shown, at this time, the horizontal scale plate 32 is perpendicular to the vertical scale plate 43, and the electromagnetic detection table 1 is attached near the leakage point, and the vertical scale plate 43 and the second sliding component 7 are gradually slid until the value of the electromagnetic sensor 5 is the maximum value. At this time, the electromagnetic sensor 5 corresponds to the leakage point. Specifically, since the leakage point will generate an electromagnetic field, the closer the position of the electromagnetic sensor 5 is to the electromagnetic field, the larger the reading of the electromagnetic sensor 5 is. Therefore, when the value of the electromagnetic sensor 5 is the maximum value, the position of the electromagnetic sensor 5 corresponds to the leakage point. Coordinates are formed by the horizontal scale plate 32 and the vertical scale plate 43, and the electromagnetic sensor 5 forms accurate coordinate points through the slidable vertical scale plate 43 and the second sliding component 7, which can effectively improve the accuracy of leakage detection and facilitate maintenance of the leakage.

[0019] In a further preferred embodiment of the present invention, Figure 7 As shown, a positioning protrusion 24 is provided at one end of the inner side of the guide plate 22 close to the mounting platform 23 , and a rubber pad 25 is fixedly provided at the end of the positioning protrusion 24 .

[0020] In this embodiment, by setting the positioning protrusion 24 and the rubber pad 25, the transverse scale plate 32 is rotated along the hinge with the fixing plate 31 until the side wall of the transverse scale plate 32 and the rubber pad 25 contact each other, so as to locate the position of the transverse scale plate 32, so as to achieve the purpose of making the transverse scale plate 32 perpendicular to the bottom plate 21. Figure 7 shown.

[0021] In a further preferred embodiment of the present invention, Figure 2 , Figure 3 and Figure 4 As shown, a sliding groove 26 is provided at one end of the guide plate 22 away from the mounting platform 23, a locking plate 29 is provided inside the sliding groove 26, the distance between the locking plate 29 and the bottom plate 21 is equal to the thickness of the transverse scale plate 32, a pull plate 27 is fixedly provided on the end wall of the locking plate 29, and a lifting spring 28 fixedly connected to the guide plate 22 is provided on the outer peripheral wall of the pull plate 27.

[0022] In this embodiment, Figure 2 As shown, when the horizontal scale plate 32 is parallel to the bottom plate 21, as shown in Figure 3 As shown, the end of the locking plate 29 extends between the two guide plates 22, so that a protrusion is formed on the inner side of one of the guide plates 22. Since the distance between the locking plate 29 and the bottom plate 21 is equal to the thickness of the horizontal scale plate 32, when the horizontal scale plate 32 is tightly attached to the bottom plate 21, the locking plate 29 can clamp the horizontal scale plate 32 to fix the horizontal scale plate 32. Figure 4 As shown, by setting the lifting spring 28, the locking plate 29 can be inserted into the inside of the guide plate 22. When the position of the transverse scale plate 32 needs to be adjusted, the pull plate 27 is manually stretched to pull out the locking plate 29, and the transverse scale plate 32 can be flipped.

[0023] In a further preferred embodiment of the present invention, Figure 5 , Figure 6 and Figure 8 As shown, the connecting hinge 42 includes a first connecting plate 421 and a second connecting plate 422. The first connecting plate 421 and the second connecting plate 422 are both set in the shape of a right-angled isosceles triangle, and the hypotenuse is set at an angle of forty-five degrees with the side of the horizontal slider 41. The first connecting plate 421 is fixedly connected to the horizontal slider 41, and the second connecting plate 422 is fixedly connected to the longitudinal scale plate 43. The first connecting plate 421 and the second connecting plate 422 are rotatably connected via a shaft 423.

[0024] In this embodiment, the first connecting plate 421 and the second connecting plate 422 are fixedly connected to the transverse slider 41 and the longitudinal scale plate 43 by screws, and the shaft 423 corresponds to the hypotenuse of the first connecting plate 421 and the second connecting plate 422. Therefore, when the second connecting plate 422 is turned over, the angle of the longitudinal scale plate 43 can be adjusted so that the longitudinal scale plate 43 and the transverse scale plate 32 form a vertical angle, such as Figure 6 As shown, the longitudinal scale plate 43 and the transverse scale plate 32 together form a coordinate system with scales to facilitate determination of the location of the leakage.

[0025] In a further preferred embodiment of the present invention, Figure 2 As shown, a limiting platform 8 is provided at one end of the transverse scale plate 32 away from the fixing plate 31 , and the bottom surface of the limiting platform 8 is flush with the bottom surface of the mounting platform 23 .

[0026] In this embodiment, since the bottom surface of the limit platform 8 is flush with the bottom surface of the mounting platform 23, when the electromagnetic measuring meter is pressed against the ground or the wall, the limit platform 8 and the mounting platform 23 can provide better support for the horizontal scale plate 32 and the electromagnetic measuring meter to avoid the problem of shaking of the electromagnetic measuring meter.

[0027] In a further preferred embodiment of the present invention, Figure 2 As shown, the end wall of the bottom plate 21 is provided with a positioning bracket 9 , and the positioning bracket 9 is fixedly connected to the electromagnetic detection meter 1 .

[0028] In this embodiment, the stability of the electromagnetic measuring meter is further improved by providing the positioning bracket 9.

[0029] In a further preferred embodiment of the present invention, Figure 8 As shown, the first sliding assembly 6 includes a side plate 61, which is fixedly connected to the end wall of the transverse slider 41, a clamping spring 62 is arranged on the inner side of the side plate 61, a friction plate 63 is arranged at the end of the clamping spring 62, and the friction plate 63 is in contact with the transverse scale plate 32.

[0030] In this embodiment, the side plate 61 is used to install a compression spring 62 and a friction plate 63. The friction plate 63 contacts the surface of the transverse scale plate 32, so that the longitudinal scale plate 43 has a certain damping when sliding, so as to achieve the purpose of the longitudinal scale plate 43 being able to stop at will, and then facilitate the adjustment of the longitudinal scale plate 43.

[0031] In a further preferred embodiment of the present invention, Fig. 9As shown, the second sliding assembly 7 includes a top frame 71, which is fixedly connected to the electromagnetic inductor 5. Both ends of the top frame 71 are provided with fixing grooves 72, and a damping plate 73 is arranged inside the fixing groove 72. A supporting spring 74 is arranged at the bottom end of the damping plate 73.

[0032] In this embodiment, fixed grooves 72 are opened on both sides of the top frame 71, and the groove walls on both sides of the longitudinal slide groove 44 are inserted into the fixed grooves 72 to achieve the purpose of installing the top frame 71 inside the longitudinal slide groove 44, and the top frame 71 is sleeved on the outer peripheral wall of the electromagnetic sensor 5, so that the electromagnetic sensor 5 is slidably connected with the longitudinal scale plate 43, and the damping plate 73 and the groove wall of the longitudinal slide groove 44 are in contact with each other through the support spring 74, so that the top frame 71 has resistance when sliding, so as to realize the arbitrary stopping of the top frame 71 and avoid the problem of the top frame 71 being offset due to gravity or other influences.

[0033] The implementation principle of the above embodiment is as follows: the electrician holds the electromagnetic detection meter 1 and makes the display screen of the electromagnetic detection meter 1 face himself, rotates the longitudinal scale plate 43 along the connecting hinge 42, so that the longitudinal scale plate 43 and the transverse scale plate 32 form a right angle, rotates the transverse scale plate 32 along the hinge with the fixing plate 31, so that the transverse scale plate 32 and the bottom plate 21 are perpendicular to each other, and at this time, the bottom end of the electromagnetic detection meter 1 has a bracket of a certain length, so that the electromagnetic inductor 5 can be close to the ground when the electrician stands upright, so as to determine the approximate position of the leakage point; When detecting a leakage point, the horizontal scale plate 32 is rotated to be perpendicular to the vertical scale plate 43, and the electromagnetic detection table 1 is attached near the leakage point. At this time, the horizontal scale plate 32 and the vertical scale plate 43 form coordinates, and the electromagnetic sensor 5 forms an accurate coordinate point through the sliding vertical scale plate 43 and the second sliding component 7, which can effectively improve the accuracy of leakage detection and facilitate maintenance of the leakage point.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic and electrical leakage prevention electromagnetic measuring device, comprising an electromagnetic detection meter (1), characterized in that: A clamping plate (2) is fixedly mounted on the bottom end of the electromagnetic detection meter (1); a transverse sliding frame (3) is arranged inside the clamping plate (2); and a longitudinal guide rail structure (4) is arranged inside the transverse sliding frame (3); The clamping plate (2) comprises a bottom plate (21), the bottom plate (21) is fixedly connected to the bottom end of the electromagnetic detection meter (1), guide plates (22) are arranged on both sides of the bottom plate (21), and a mounting platform (23) is arranged on the end sides of the two guide plates (22); The transverse sliding frame (3) comprises a fixing plate (31), the fixing plate (31) being mounted between the two guide plates (22) and fixedly connected to the mounting platform (23), one end of the fixing plate (31) away from the mounting platform (23) being rotatably connected to a transverse scale plate (32), and a transverse sliding groove (33) being arranged inside the transverse scale plate (32); The longitudinal guide rail structure (4) comprises a transverse slider (41), the transverse slider (41) being slidably arranged inside the transverse slide groove (33), first sliding components (6) being arranged at both ends of the transverse slider (41), a longitudinal scale plate (43) being hingedly connected to the bottom end of the transverse slider (41) via a connecting hinge (42), a longitudinal slide groove (44) being provided inside the longitudinal scale plate (43), an electromagnetic inductor (5) being slidably arranged inside the longitudinal slide groove (44), and a second sliding component (7) being arranged on the outer peripheral wall of the electromagnetic inductor (5).

2. The electronic and electrical leakage prevention electromagnetic measuring device according to claim 1, characterized in that: A positioning protrusion (24) is provided at one end of the inner side of the guide plate (22) close to the mounting platform (23), and a rubber pad (25) is fixedly provided at the end of the positioning protrusion (24).

3. The electronic and electrical leakage prevention electromagnetic measuring device according to claim 2, characterized in that: A sliding groove (26) is provided at one end of the guide plate (22) away from the mounting platform (23), a locking plate (29) is provided inside the sliding groove (26), the distance between the locking plate (29) and the bottom plate (21) is equal to the thickness of the transverse scale plate (32), a pulling plate (27) is fixedly provided on the end wall of the locking plate (29), and a lifting spring (28) fixedly connected to the guide plate (22) is provided on the outer peripheral wall of the pulling plate (27).

4. The electronic and electrical leakage prevention electromagnetic measuring device according to claim 3, characterized in that: The connecting hinge (42) comprises a first connecting plate (421) and a second connecting plate (422); the first connecting plate (421) and the second connecting plate (422) are both arranged in the shape of a right-angled isosceles triangle, and the hypotenuse and the side of the horizontal slider (41) are arranged at an angle of 45 degrees; the first connecting plate (421) is fixedly connected to the horizontal slider (41), the second connecting plate (422) is fixedly connected to the longitudinal scale plate (43), and the first connecting plate (421) and the second connecting plate (422) are rotatably connected via a shaft (423).

5. The electronic and electrical leakage prevention electromagnetic measuring device according to claim 4, characterized in that: A limiting platform (8) is provided at one end of the transverse scale plate (32) away from the fixing plate (31), and the bottom surface of the limiting platform (8) is flush with the bottom surface of the mounting platform (23).

6. The electronic and electrical leakage prevention electromagnetic measuring device according to claim 5, characterized in that: The end wall of the bottom plate (21) is provided with a positioning bracket (9), and the positioning bracket (9) is fixedly connected to the electromagnetic detection meter (1).

7. The electronic and electrical leakage-proof electromagnetic measuring device according to claim 6, characterized in that: The first sliding assembly (6) comprises a side plate (61), the side plate (61) being fixedly connected to the end wall of the transverse sliding block (41), a compression spring (62) being arranged on the inner side of the side plate (61), a friction plate (63) being arranged at the end of the compression spring (62), and the friction plate (63) being in contact with the transverse scale plate (32).

8. The electronic and electrical leakage prevention electromagnetic measuring device according to claim 7, characterized in that: The second sliding assembly (7) comprises a top frame (71), the top frame (71) being sleeved on the outer peripheral wall of the electromagnetic inductor (5) and fixedly connected to the electromagnetic inductor (5), both ends of the top frame (71) being provided with fixing grooves (72), a damping plate (73) being arranged inside the fixing groove (72), and a supporting spring (74) being arranged at the bottom end of the damping plate (73).

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