A magnetic adsorption device and a method of using the same

Abstract

The invention discloses a magnetic adsorption device and a method for using the same, comprising an upper cover, a replaceable fastener and a plurality of magnetic bases; the upper cover is a circular ring structure, and the plurality of magnetic bases are arranged on the lower surface of the upper cover; the plurality of magnetic bases are connected in sequence to form an annular magnetic structure; one end of the annular magnetic structure is fixedly connected to the upper cover, and the other end is connected to the surface of a component to be measured; wherein the annular magnetic structure and the component to be measured are connected by magnetic force; a fastener mounting hole is provided in the annular magnetic structure, and the replaceable fastener is cooperatively arranged in the fastener mounting hole of the annular magnetic structure; after a measuring device to be fastened passes through the upper cover, it is fixedly installed in the replaceable fastener; the invention fixes the plurality of magnetic bases on the upper cover, and connects them in sequence to form an annular magnetic structure, adopts magnetic connection, has high bonding strength, good stability, and ensures the measuring accuracy of the measuring device.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology, and in particular relates to a magnetic adsorption device and a use method thereof. Background Art

[0002] In engineering practice, it is often necessary to measure some data on structural components, such as strength, deformation and crack width. Existing measuring elements often need to be pasted on structural components, or a working platform needs to be set up from the ground to place the measuring equipment. There are problems such as long equipment preparation time, large floor space, and unreliable connection, which brings many inconveniences to production and life. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present invention provides a magnetic adsorption device and a method of using the same to solve the technical problems that when using existing measuring elements or measuring equipment, they need to be pasted or a working platform needs to be set up, the pasting strength is low, the construction preparation time is long, and the area occupied is large.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The present invention provides a magnetic adsorption device, comprising an upper cover, a fixed connector, a replaceable fastener and a plurality of magnetic bases; the upper cover is a circular ring structure, and the plurality of magnetic bases are arranged on the lower surface of the upper cover; the plurality of magnetic bases are connected in sequence to form an annular magnetic structure;

[0006] One end of the annular magnetic structure is fixedly connected to the upper cover, and the other end is connected to the surface of the component to be measured; the annular magnetic structure and the component to be measured are connected by magnetic force; a fastener mounting hole is provided in the annular magnetic structure, and a replaceable fastener is cooperatively arranged in the fastener mounting hole of the annular magnetic structure; after the measurement device to be fastened passes through the upper cover, it is fixedly installed in the replaceable fastener.

[0007] Furthermore, the upper cover is connected to the magnetic base in the annular magnetic structure by a fixed connector; one end of the fixed connector is fixedly connected to the upper cover, and the other end is fixedly connected to the magnetic base.

[0008] Furthermore, the magnetic base includes a base body, a magnet support, a first magnet, a second magnet, a first magnetic conductive boss and a second magnetic conductive boss;

[0009] The base body is an arc-shaped structure, and the base bodies of several magnetic bases are connected in sequence to form an annular structure; a groove is provided on the upper surface of the base body, and the groove is provided close to one side of the upper cover; a first hole and a second hole are provided in the groove at intervals; the first magnetic conductive boss is installed in the first hole, and the second magnetic conductive boss is installed in the second hole; a first protrusion is provided on the lower surface of the first magnetic conductive boss, one end of the first protrusion is fixedly connected to the first magnetic conductive boss, and the other end is in close contact with the surface of the component to be measured; a second protrusion is provided on the lower surface of the second magnetic conductive boss, one end of the second protrusion is fixedly connected to the second magnetic conductive boss, and the other end is in close contact with the surface of the component to be measured;

[0010] A track groove is arranged on the outer wall of the groove, and the magnet support is arranged through the track groove and is slidably connected with the track groove; one end of the magnet support extends into the groove after passing through the track groove, and the other end is exposed outside the base body; a first card groove and a second card groove are arranged at intervals on the extended end of the magnetic support; the first magnet is arranged in the first card groove, and the second magnet is arranged in the second card groove.

[0011] Furthermore, the magnetic poles of the first magnet and the second magnet are arranged oppositely, and both the first magnet and the second magnet are made of strong neodymium iron boron magnets.

[0012] Furthermore, the N pole of the first magnet is located at an end close to the upper cover, and the S pole of the first magnet is located at an end away from the upper cover; the N pole of the second magnet is located at an end away from the upper cover, and the S pole of the second magnet is located at an end close to the upper cover.

[0013] Furthermore, the replaceable fastener is made of rubber material.

[0014] Furthermore, the replaceable fastener is a hollow ring structure; an equipment mounting hole is provided at the center of the replaceable fastener, and the shape of the equipment mounting hole matches the shape of the measuring device to be fastened; the shape of the replaceable fastener matches the fastener mounting hole of the annular magnetic structure.

[0015] Furthermore, the fixing connection member adopts a screw; a plurality of first screw holes are provided on the upper cover, and a plurality of second screw holes are provided on the magnetic base; the first screw holes and the second screw holes are provided in a one-to-one correspondence; the screw passes through the first screw holes and the second screw holes at one time to fix the upper cover and the magnetic base together.

[0016] Furthermore, the distance between the first hole and the second hole in the groove matches the distance between the first slot and the second slot in the magnetic support.

[0017] The present invention also provides a method for using the magnetic adsorption device, comprising the following steps:

[0018] Connecting the magnetic base to the component to be tested, so that the first protrusion of the first magnetic conductive boss and the second protrusion of the second magnetic conductive boss in the magnetic base are in close contact with the surface of the component to be tested;

[0019] The magnet support is driven to slide in the track groove, the first magnet is driven to move in the groove through the first clamping groove, and the second magnet is driven to move in the groove through the second clamping groove; when the first magnet is located above the first magnetic conductive boss and the second magnet is located above the second magnetic conductive boss, the magnet support is stopped to achieve fixed connection between the magnetic base and the component to be tested;

[0020] Afterwards, the measurement device to be fastened is installed in the annular magnetic structure using the fastener to be tested, that is, the installation of the measurement device to be fastened is completed;

[0021] The removal process of the measuring device to be fastened is the opposite operation of its installation process.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a magnetic adsorption device and a method for using the same. A plurality of magnetic bases are fixed on an upper cover and connected in sequence to form an annular magnetic structure. A measuring device to be fastened is fixed by a replaceable fastener fixed on the annular magnetic structure, thereby realizing a reliable connection between the measuring device and the component to be measured. There is no need to use pasting or set up a working platform, so the construction preparation time is short and the space occupied is small. The magnetic connection is adopted, the pasting strength is high and the stability is good, thereby ensuring the measurement accuracy of the measuring device.

[0024] Furthermore, a first magnetic conductive boss and a second magnetic conductive boss are arranged in the base body, the first magnet and the second magnet are supported by a magnet support, and the contact area between the magnet and the magnetic conductive boss is adjusted by sliding the magnet support to achieve adjustment and control of the magnetic force of the magnet support, thereby improving the applicable range of the magnetic force and meeting the connection and fixation requirements with different components to be tested.

[0025] Furthermore, the magnetic poles of the first magnet and the second magnet are arranged oppositely so that a magnetic loop is formed between the first magnet and the second magnet, thereby ensuring that the device can be stably adsorbed on the surface of the component to be tested.

[0026] Furthermore, the shape of the device mounting hole in the replaceable fastener is matched with the shape of the measuring device to be fastened, so as to meet the fixation requirements of different measuring devices to be fastened and have a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a vertical view of the magnetic adsorption device described in the embodiment;

[0028] Figure 2It is a side view of the magnetic adsorption device described in the embodiment;

[0029] Figure 3 It is a vertical view of the magnetic base in the magnetic adsorption device described in the embodiment;

[0030] Figure 4 It is a side view of the magnetic base in the magnetic adsorption device described in the embodiment;

[0031] Figure 5 An exploded view of a magnetic base in the magnetic adsorption device described in the embodiment;

[0032] Figure 6 An exploded view of the magnetic adsorption device described in the embodiment;

[0033] Figure 7 It is a magnetic opening principle diagram of the magnetic adsorption device in the embodiment;

[0034] Figure 8 It is a magnetic closing principle diagram of the magnetic adsorption device in the embodiment.

[0035] Among them, 1 is an upper cover, 2 is a fixed connecting piece, 3 is a first screw hole, 4 is a replaceable fastener, 5 is a magnetic base, 6 is a magnet support, 7 is a first magnet, 8 is a second magnet, 9 is a first magnetic boss, 10 is a second magnetic boss, 11 is a track groove, 12 is a groove, 13 is a second screw hole, 14 is a first hole, 15 is a second hole, 16 is a first slot, and 17 is a second slot. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail in the following specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The present invention provides a magnetic adsorption device, comprising an upper cover 1, a fixed connecting piece 2, a replaceable fastener 4 and a plurality of magnetic bases 5; the upper cover 1 is a circular ring structure, and the plurality of magnetic bases 5 are all arranged on the lower surface of the upper cover 1; the plurality of magnetic bases 5 are connected in sequence to form an annular magnetic structure; one end of the annular magnetic structure is fixedly connected to the upper cover 1, and the other end is connected to the surface of the component to be measured; wherein the annular magnetic structure and the component to be measured are connected by magnetic force; a fastener mounting hole is arranged in the annular magnetic structure, and the replaceable fastener 4 is cooperatively arranged in the fastener mounting hole of the annular magnetic structure; after the measurement equipment to be fastened passes through the upper cover 1, it is fixedly installed in the replaceable fastener 4.

[0038] The upper cover 1 is connected to the magnetic base 5 in the annular magnetic structure by a fixed connector 2; one end of the fixed connector 2 is fixedly connected to the upper cover 1, and the other end is fixedly connected to the magnetic base 5; preferably, the fixed connector 2 is a screw; a plurality of first screw holes 3 are provided on the upper cover 1, and a plurality of second screw holes 13 are provided on the magnetic base 5; the first screw holes 3 and the second screw holes 13 are provided in a one-to-one correspondence; the screw passes through the first screw holes 3 and the second screw holes 13 at one time to fix the upper cover 1 and the magnetic base 5 together.

[0039] The replaceable fastener 4 is a hollow ring structure; an equipment mounting hole is provided at the center of the replaceable fastener 4, and the shape of the equipment mounting hole matches the shape of the measuring device to be fastened; the shape of the replaceable fastener 4 matches the fastener mounting hole of the annular magnetic structure; preferably, the replaceable fastener 4 is made of rubber material; the replaceable fastener 4 and the annular magnetic structure are detachably fixed.

[0040] The magnetic base 5 includes a base body, a magnet support 6, a first magnet 7, a second magnet 8, a first magnetic conductive boss 9 and a second magnetic conductive boss 10; the base body is an arc-shaped structure, and the base bodies of several magnetic bases 5 are connected in sequence to form a ring structure; a groove 12 is provided on the upper surface of the base body, and the groove 12 is provided close to one side of the upper cover 1; a first hole 14 and a second hole 15 are provided in the groove 12; the first magnetic conductive boss 9 is installed in the first hole 14, and the second magnetic conductive boss 10 is installed in the second hole 15; a first protrusion is provided on the lower surface of the first magnetic conductive boss 9, one end of the first protrusion is fixedly connected to the first magnetic conductive boss 9, and the other end is in close contact with the surface of the component to be tested; a second magnetic conductive boss 10 is provided on the lower surface The protrusion, one end of the second protrusion is fixedly connected to the second magnetic conductive boss 10, and the other end is in close contact with the surface of the component to be tested; a track groove 11 is arranged on the outer wall of the groove 12, and the magnet support 6 is penetrated and arranged in the track groove 11, and is slidably connected with the track groove 11; one end of the magnet support 6 extends into the groove 12 after passing through the track groove 11, and the other end is exposed outside the base body; the first card groove 16 and the second card groove 17 are arranged at intervals on the extended end of the magnetic support 6; the first magnet 7 is arranged in the first card groove 16, and the second magnet 8 is arranged in the second card groove 17; preferably, the distance between the first hole 14 and the second hole 15 in the groove 12 matches the distance between the first card groove 16 and the second card groove 17 in the magnetic support 6.

[0041] In the present invention, the magnetic poles of the first magnet 7 and the second magnet 8 are arranged oppositely, and both the first magnet 7 and the second magnet 8 are made of neodymium iron boron strong magnets; preferably, the N pole of the first magnet 7 is located at one end close to the upper cover 1, and the S pole of the first magnet 7 is located at one end away from the upper cover 1; the N pole of the second magnet 8 is located at one end away from the upper cover 1, and the S pole of the second magnet 8 is located at one end close to the upper cover 1.

[0042] The method for using the magnetic adsorption device of the present invention specifically comprises the following steps:

[0043] Step 1: Connect the magnetic base 5 to the component to be tested, so that the first protrusion of the first magnetic conductive boss 9 and the second protrusion of the second magnetic conductive boss 10 in the magnetic base 5 are in close contact with the surface of the component to be tested.

[0044] Step 2, drive the magnet support 6 to slide in the track groove 11, drive the first magnet 7 to move in the groove 12 through the first slot 16, and drive the second magnet 8 to move in the groove 12 through the second slot 17; when the first magnet 7 is located above the first magnetic conductive boss 9, and when the second magnet 8 is located above the second magnetic conductive boss 10, stop driving the magnet support 6 to achieve a fixed connection between the magnetic base 5 and the component to be tested.

[0045] Step 3: After that, the measurement device to be fastened is installed in the annular magnetic structure using the fastener 4 to be tested, that is, the installation of the measurement device to be fastened is completed.

[0046] Step 4: The removal process of the measurement device to be fastened is the opposite operation of its installation process.

[0047] Working principle:

[0048] In the process of daily inspection, reinforcement, identification or experiment, it is often necessary to connect various measuring equipment or sensors. Generally, the measuring instrument needs to be pasted on the surface of the component to be measured or the object to be measured; but due to the small pasting surface of the measuring instrument, it is necessary to use tools such as magnetic heads to assist in pasting; and when using magnetic heads, a larger working platform needs to be set up; and the magnetic heads are easily disturbed and fall off or slip due to their magnetic size and structural characteristics; the magnetic system device described in the present invention ensures reliable fixation of the measuring instrument by arranging a plurality of magnetic bases on the upper cover, which are connected to the component to be measured through the magnetic bases; when in use, the guide in the magnetic base is pressed against the guide The raised portion of the magnetic boss is in close contact with the surface of the component to be measured, and the magnet support is rotated to drive the magnet to rotate; when the first magnet is located above the first magnetic conductive boss, and the second magnet is located above the second magnetic conductive boss, a magnetic circuit is formed between the first magnet and the second magnet, thereby fixing the magnetic adsorption device on the surface of the component to be measured; then, the measuring device to be fastened and the corresponding replaceable fasteners are installed; wherein, the replaceable fasteners are first placed in the annular magnetic structure; then the measuring device to be fastened is placed in the equipment mounting hole of the replaceable fastener, and the three are tightly buckled; at this time, the equipment is arranged and put into use.

[0049] The magnetic adsorption device and the method of using the same described in the present invention can realize the control of the magnitude of the magnetic force by arranging a magnet on a magnetic support and rotating the magnet; assuming that the magnetic force provided by a single magnetic base is F, the magnetic adsorption device can provide a maximum magnetic force of nF; wherein n is the number of magnetic bases; and the magnitude of the magnetic force can be selected according to the equipment or components to be fixed; at the same time, the replaceable fastener form can be made according to different equipment, with a simple structure and a wide range of applications.

[0050] Example

[0051] As attached Figure 1-6 As shown, this embodiment provides a magnetic adsorption device, including an upper cover 1, a fixed connection member 2, a replaceable fastener 4 and six magnetic bases 5.

[0052] The upper cover 1 is a circular ring structure, and six magnetic bases 5 are all arranged on the lower surface of the upper cover 1; the six magnetic bases 5 are connected in sequence to form an annular magnetic structure; one end of the annular magnetic structure is fixedly connected to the upper cover 1, and the other end is connected to the surface of the component to be measured; wherein the annular magnetic structure and the component to be measured are connected by magnetic force; a fastener mounting hole is provided in the annular magnetic structure, and a replaceable fastener 4 is cooperatively arranged in the fastener mounting hole of the annular magnetic structure; after the measuring device to be fastened passes through the upper cover 1, it is fixedly installed in the replaceable fastener 4.

[0053] The upper cover 1 is connected to the magnetic base 5 in the annular magnetic structure by a fixed connector 2 ; one end of the fixed connector 2 is fixedly connected to the upper cover 1 , and the other end is fixedly connected to the magnetic base 5 .

[0054] In this embodiment, the fixing connection member 2 is a screw; a plurality of first screw holes 3 are provided on the upper cover 1, and a plurality of second screw holes 13 are provided on the magnetic base 5; the first screw holes 3 and the second screw holes 13 are provided in a one-to-one correspondence; the screw passes through the first screw holes 3 and the second screw holes 13 at one time to fix the upper cover 1 and the magnetic base 5 together.

[0055] The fastener mounting hole in the annular magnetic structure is a hexagonal structure; the replaceable fastener 4 is a hollow hexagonal structure, and an equipment mounting hole is arranged at the center of the replaceable fastener 4; the shape of the equipment mounting hole matches the appearance of the measuring equipment to be fastened; in this embodiment, the replaceable fastener 4 is made of rubber material; the replaceable fastener 4 and the annular magnetic structure are detachably fixed.

[0056] The magnetic base 5 includes a base body, a magnet support 6, a first magnet 7, a second magnet 8, a first magnetic conductive boss 9 and a second magnetic conductive boss 10; the base body is an arc-shaped structure, and the base bodies of several magnetic bases 5 are connected in sequence to form an annular structure; wherein, a second screw hole is provided in the middle of the upper surface of the base body for connecting with the fixed connector 2; a groove 12 is provided on the upper surface of the base body, and the groove 12 is provided close to one side of the upper cover 1; a first hole 14 and a second hole 15 are provided in the groove 12 at intervals; the first magnetic conductive boss 9 is installed in the first hole 14, and the second magnetic conductive boss 10 is installed in the second hole 15; a first protrusion is provided on the lower surface of the first magnetic conductive boss 9, one end of the first protrusion is fixedly connected to the first magnetic conductive boss 9, and the other end is in close contact with the surface of the component to be measured; a second protrusion is provided on the lower surface of the second magnetic conductive boss 10, one end of the second protrusion is fixedly connected to the second magnetic conductive boss 10, and the other end is in close contact with the surface of the component to be measured.

[0057] In this embodiment, a track groove 11 is provided on the outer wall of the groove 12, and the axial direction of the track groove 11 is consistent with the circumferential direction of the annular magnetic structure; the magnet support 6 is arranged in the track groove 11 and is slidably connected with the track groove 11; one end of the magnet support 6 extends into the groove 12 after passing through the track groove 11, and the other end is exposed outside the base body; a first slot 16 and a second slot 17 are arranged at intervals on the extended end of the magnetic support 6; the first magnet 7 is arranged in the first slot 16, and the second magnet 8 is arranged in the second slot 17; preferably, the distance between the first hole 14 and the second hole 15 in the groove 12 matches the distance between the first slot 16 and the second slot 17 in the magnetic support 6.

[0058] In this embodiment, the N pole of the first magnet 7 is located at the end close to the upper cover 1, and the S pole of the first magnet 7 is located at the end away from the upper cover 1; the N pole of the second magnet 8 is located at the end away from the upper cover 1, and the S pole of the second magnet 8 is located at the end close to the upper cover 1.

[0059] Working principle and usage:

[0060] As attached Figure 7 As shown, attached Figure 7 Schematic diagram of the magnetic opening principle of the magnetic adsorption device; when the magnet support 6 is located at the counterclockwise end side of the track groove 11, the first magnet 7 and the second magnet 8 are respectively located directly above the first magnetic conductive boss 9 and the second magnetic conductive boss 10; according to the magnetic characteristics of the magnet, the magnetic flux lines start from the N pole of the second magnet 8, pass through the second magnetic conductive boss 10, pass through the component to be tested, and return from the first magnetic conductive boss 9 to the S pole of the first magnet 7, forming a magnetic circuit, thereby realizing the "adsorption" function and being in the magnetic opening state.

[0061] As attached Figure 8 As shown, attached Figure 8 It is a magnetic closing principle diagram of the magnetic adsorption device; when the magnet support 6 is located at the clockwise end side of the track groove 11, only a part of the second magnet 8 is located above the second magnetic conductive boss 10, and there is no magnet above the first magnetic conductive boss 9; according to the magnetic characteristics of the magnet, the magnetic flux lines start from the N pole of the second magnet 8, pass through the second magnetic conductive boss 10 and return to the S pole of the first magnet 7, and only a small part of the magnetic flux lines pass through the component to be tested, thereby realizing the "disconnection" function.

[0062] During specific use, the raised parts of the first magnetic boss 9 and the second magnetic boss 10 are placed tightly against the component to be measured; then the magnet support 6 is rotated in sequence, and the rotation of the magnet support 6 drives the first magnet 7 and the second magnet 8 to rotate. When the first magnet 7 and the second magnet 8 are respectively located above the first magnetic boss 9 and the second magnetic boss 10, the magnetic force is "adsorbed"; according to the number of rotating magnet supports 6, the magnetic force varies from F to 6F; then, the replaceable fastener 4 is placed in the fastener mounting hole of the annular magnetic structure and is in close contact with the magnetic base 5; finally, the measuring device or component to be fastened is tightly fixed in the device mounting hole of the replaceable fastener 4; the measuring device or component is brought into contact with the object to be measured and work is started; after the work is completed, the measuring device or component is taken out of the replaceable fastener 4, and then the replaceable fastener 4 is taken out, and finally the magnet support 6 is rotated in sequence to put the magnetic force in the "disconnected" state, and the portable adsorption device with adjustable magnetic force is removed.

[0063] In the present embodiment, there are six magnetic bases, which are spliced ​​together to form an annular magnetic structure. Adjacent magnetic bases are distributed around the center of the entire annular magnetic structure at an interval of 60°. The structure is simple, and the size of the magnetic force can be controlled by rotating the six magnet supports separately during use. The magnetic force provided by a single magnetic base is F, and the maximum magnetic force that can be provided is 6F. The size of the magnetic force can be selected according to the equipment or components that need to be fixed, and the replaceable fastener form can be made according to different equipment, and has a wide range of applications.

[0064] The magnetic adsorption device and the use method thereof described in the present invention fix a plurality of magnetic bases on an upper cover and connect them in sequence to form an annular magnetic structure, and fix the measuring device to be fastened by a replaceable fastener fixed on the annular magnetic structure, so as to achieve a reliable connection between the measuring device and the component to be measured; there is no need to use gluing or set up a working platform, the construction preparation time is short, and the space occupied is small; the magnetic connection is used, the gluing strength is high, the stability is good, and the measurement accuracy of the measuring device is ensured.

[0065] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention.

Claims

1. A magnetic adsorption device, characterized in that: It comprises an upper cover (1), a replaceable fastener (4) and a plurality of magnetic bases (5); the upper cover (1) is a circular ring structure, and the plurality of magnetic bases (5) are all arranged on the lower surface of the upper cover (1); the plurality of magnetic bases (5) are connected in sequence to form an annular magnetic structure; One end of the annular magnetic structure is fixedly connected to the upper cover (1), and the other end is connected to the surface of the component to be measured; the annular magnetic structure and the component to be measured are connected by magnetic force; a fastener installation hole is provided in the annular magnetic structure, and a replaceable fastener (4) is arranged in the fastener installation hole of the annular magnetic structure; after the fastening measurement device passes through the upper cover (1), it is fixedly installed in the replaceable fastener (4); The magnetic base (5) comprises a base body, a magnet support (6), a first magnet (7), a second magnet (8), a first magnetic conductive boss (9) and a second magnetic conductive boss (10); The base body is an arc-shaped structure, and the base bodies of the plurality of magnetic bases (5) are connected in sequence to form an annular structure; a groove (12) is provided on the upper surface of the base body, and the groove (12) is provided close to one side of the upper cover (1); a first hole (14) and a second hole (15) are provided in the groove (12); the first magnetic conductive boss (9) is installed in the first hole (14), and the second magnetic conductive boss (10) is installed in the second hole (15); a first protrusion is provided on the lower surface of the first magnetic conductive boss (9), one end of the first protrusion is fixedly connected to the first magnetic conductive boss (9), and the other end is in close contact with the surface of the component to be tested; a second protrusion is provided on the lower surface of the second magnetic conductive boss (10), one end of the second protrusion is fixedly connected to the second magnetic conductive boss (10), and the other end is in close contact with the surface of the component to be tested; A track groove (11) is arranged on the outer wall of the groove (12); the magnet support (6) is arranged through the track groove (11) and is slidably connected to the track groove (11); one end of the magnet support (6) extends into the groove (12) after passing through the track groove (11), and the other end is arranged outside the base body; a first clamping groove (16) and a second clamping groove (17) are arranged at intervals on the extended end of the magnetic support (6); the first magnet (7) is arranged in the first clamping groove (16), and the second magnet (8) is arranged in the second clamping groove (17); The magnetic poles of the first magnet (7) and the second magnet (8) are arranged opposite to each other, and both the first magnet (7) and the second magnet (8) are made of strong neodymium iron boron magnets; The N pole of the first magnet (7) is located at an end close to the upper cover (1), and the S pole of the first magnet (7) is located at an end away from the upper cover (1); the N pole of the second magnet (8) is located at an end away from the upper cover (1), and the S pole of the second magnet (8) is located at an end close to the upper cover (1).

2. A magnetic adsorption device according to claim 1, characterized in that: The upper cover (1) and the magnetic base (5) in the annular magnetic structure are connected by a fixed connecting piece (2); one end of the fixed connecting piece (2) is fixedly connected to the upper cover (1), and the other end is fixedly connected to the magnetic base (5).

3. A magnetic adsorption device according to claim 1, characterized in that: The replaceable fastener (4) is made of rubber material.

4. A magnetic adsorption device according to claim 1, characterized in that: The replaceable fastener (4) is a hollow annular structure; a device mounting hole is provided at the center of the replaceable fastener (4), and the shape of the device mounting hole matches the shape of the measuring device to be fastened; and the shape of the replaceable fastener (4) matches the fastener mounting hole of the annular magnetic structure.

5. The magnetic adsorption device according to claim 1, characterized in that: The fixing connecting member (2) is provided with a screw; a plurality of first screw holes (3) are provided on the upper cover (1), and a plurality of second screw holes (13) are provided on the magnetic base (5); the first screw holes (3) and the second screw holes (13) are provided in a one-to-one correspondence; the screws penetrate the first screw holes (3) and the second screw holes (13) at one time, and the upper cover (1) and the magnetic base (5) are fixedly connected together.

6. A magnetic adsorption device according to claim 1, characterized in that: The distance between the first hole (14) and the second hole (15) in the groove (12) matches the distance between the first clamping groove (16) and the second clamping groove (17) in the magnetic support (6).

7. The method for using a magnetic adsorption device according to claim 1, characterized in that: The following steps are involved: The magnetic base (5) is connected to the component to be measured, so that the first protrusion of the first magnetic conductive protrusion (9) in the magnetic base (5) and the second protrusion of the second magnetic conductive protrusion (10) are in close contact with the surface of the component to be measured; The magnet support (6) is driven to slide in the track groove (11), and the first magnet (7) is driven to move in the groove (12) through the first clamping groove (16), and the second magnet (8) is driven to move in the groove (12) through the second clamping groove (17); when the first magnet (7) is located above the first magnetic conductive boss (9), and when the second magnet (8) is located above the second magnetic conductive boss (10), the magnet support (6) is stopped from being driven, so that the magnetic base (5) is fixedly connected to the component to be tested; Afterwards, the measurement device to be fastened is installed in the annular magnetic structure using a replaceable fastener (4), and the installation of the measurement device to be fastened is completed; The removal process of the measuring device to be fastened is the opposite operation of its installation process.

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