Magnetic suction type power meter

Abstract

The application relates to the technical field of electric power meters, in particular to a magnetic-suction-sucker type electric power meter which comprises an electric power meter, a shell, a permanent-magnetic-suction-sucker and a back cover plate, the electric power meter is arranged in the front-end space of the shell, the bottom lower side plate of the electric power meter is detachably connected with the lower side elastic connecting piece at the front end of the shell, the permanent-magnetic-suction-sucker is arranged in the magnetic separation cavity at the rear end of the shell, and the back cover plate is detachably connected with the rear end of the shell through bolts. Compared with colloid bonding, the magnetic-suction-sucker type electric power meter has large suction force and good adsorption effect, compared with bolt connection, the magnetic-suction-sucker type electric power meter does not damage the wall, and other installation tools are not needed, compared with a vacuum suction cup, the magnetic-suction-sucker type electric power meter does not need to consider the flatness of the equipment or the wall, the permanent-magnetic-suction-sucker only needs to be rotated to complete permanent-magnetic-suction-sucker magnetization and demagnetization, and then the electric power meter is installed on the equipment or the wall or is taken off from the equipment or the wall; through the use of the elastic connecting piece and the side plate, the anti-vibration performance of the electric power meter during use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power meters, and particularly to a magnetic suction cup type power meter. Background Art

[0002] A power meter is a power measurement and control device that provides solutions for power parameter measurement, power quality monitoring and analysis, and electrical equipment control.

[0003] During the use of power meters, installation and disassembly have always been important issues, which are related to the complexity of the workload of relevant staff. Traditional power meters are installed on the wall with holes using bolts, such as patent application number CN202222822471.3, or glued to the wall with glue, which will damage the wall and the firmness of the installation cannot be guaranteed. There are also some power meters that use suction cups or vacuum suction cups to fix on equipment or walls. For example, patent publication number CN201910979698.9 and patent publication number CN221326598U have disclosed similar meter designs, but they still have the following deficiencies in actual use: using suction cups or vacuum suction cups requires a high flatness of the object surface, and the adsorption effect on rough or uneven surfaces is not good; and the vacuum suction cup needs to consume energy to generate vacuum, so there will be a certain energy consumption during use.

[0004] Therefore, we propose a magnetic suction cup type power meter. Summary of the Invention

[0005] One technical problem to be solved by this application is that traditional power meters are installed on the wall with bolts or glue, which will damage the wall and the firmness of the installation cannot be guaranteed. There are also some power meters that use vacuum suction cups to fix on equipment or walls. Such a method has the following deficiencies: using a vacuum suction cup requires a high flatness of the object surface, and the adsorption effect on rough or uneven surfaces is not good; the vacuum suction cup needs to consume energy to generate vacuum, so there will be a certain energy consumption during use.

[0006] To solve the above technical problems, the embodiment of this application provides a magnetic suction cup type power meter, which includes a power meter and a shell, and also includes a permanent magnetic suction cup and a rear cover plate;

[0007] The power meter is arranged in the front-end space of the shell, and the lower side plate at the bottom of the power meter is detachably connected to the lower side of the front end of the shell through an elastic connecting piece;

[0008] The permanent magnetic suction cup is arranged in the magnetic isolation cavity at the rear end of the shell;

[0009] The rear cover plate is detachably connected to the rear end of the shell through bolts.

[0010] In some embodiments, the power meter includes a meter body. A front panel is provided at the front end of the meter body. A display screen is provided in the middle of the front panel. A number of control buttons are provided below the display screen. The size of the display screen is smaller than that of the front panel, and is specifically determined according to the size of the front panel.

[0011] A first handle is provided at the top of the meter body. The first handle is in the shape of a cylinder, and its size is determined according to the meter body.

[0012] In some embodiments, a right side plate is provided on the right side of the meter body. The meter body and the right side plate are connected by a third elastic connecting member. The left end of the third elastic connecting member is connected to the right end of the meter body, and the right end of the third elastic connecting member is connected to the right side plate. The number of the third connecting members is three.

[0013] A first positioning hole is provided on the right side surface of the right side plate. The number of the first positioning holes is three.

[0014] A left side plate is provided on the left side of the meter body. The left side plate and the meter body are connected by a fourth elastic connecting member. The left end of the fourth elastic connecting member is connected to the right end of the left side plate, and the right end of the fourth elastic connecting member is connected to the left end of the meter body. The number of the fourth elastic connecting members is three.

[0015] A second positioning hole is provided on the left side surface of the left side plate. The number of the second positioning holes is three.

[0016] The first positioning hole and the second positioning hole are equal in size, and the positions of the first positioning hole and the second positioning hole are symmetrically distributed with respect to the central axis of the meter body along the length direction.

[0017] In some embodiments, a lower side plate is provided on the inner wall of the lower side of the meter body. The lower side plate and the meter body are connected by a first elastic connecting member. The upper end of the first elastic connecting member is connected to the lower end of the meter body, and the lower end of the first elastic connecting member is connected to the upper end surface of the lower side plate. The number of the first elastic connecting members is three.

[0018] A third positioning hole is provided on the lower side surface of the lower side plate. The number of the third positioning holes is three.

[0019] The first positioning hole, the second positioning hole, and the third positioning hole are all blind holes.

[0020] In some embodiments, a rear side plate is provided at the rear side of the meter body. The rear side plate and the meter body are connected by a second elastic connecting member. The front end of the second elastic connecting member is connected to the rear end of the meter body, and the rear end of the second elastic connecting member is connected to the front end of the rear side plate. The number of the second elastic connecting members is four.

[0021] The rear side plate is provided with a number of ventilation holes. The ventilation holes are through holes and are distributed in a circular array.

[0022] The first elastic connecting member, the second elastic connecting member, the third elastic connecting member, and the fourth elastic connecting member are each composed of a connecting rod and a spring.

[0023] In some embodiments, the housing includes a housing body. The front end of the housing body is a space formed by left, right, and lower side plates with the front and upper plates hollowed out.

[0024] On the left side wall of the housing body, there are three left - hand elastic connecting members.

[0025] On the right side wall of the housing body, there are three right - hand elastic connecting members.

[0026] On the lower side plate of the housing body, there are three lower - side elastic connecting members.

[0027] The left - hand elastic connecting members, the right - hand elastic connecting members, and the lower - side elastic connecting members are each composed of a connecting rod and a spring.

[0028] The diameters of the connecting rods in the left - hand elastic connecting members, the right - hand elastic connecting members, and the lower - side elastic connecting members are the same as the diameters of the first positioning hole, the second positioning hole, and the third positioning hole.

[0029] In some embodiments, on the inner wall of the front end of the housing body, there is a fourth positioning hole, and a fan is arranged in the fourth positioning hole.

[0030] The position of the fourth positioning hole corresponds to the position of the ventilation hole. The circumferential areas enclosed by the fourth positioning hole and the ventilation hole are equal, and the fourth positioning hole is a blind hole.

[0031] The rear end of the housing body is a magnetic isolation cavity. On the front end face of the magnetic isolation cavity, there is a fifth positioning hole, and the fifth positioning hole is a blind hole.

[0032] On the rear end face of the housing body, there are a number of second through - holes, and on the left side wall of the magnetic isolation cavity, there is a first through - hole.

[0033] In some embodiments, the permanent magnet suction cup includes magnetic poles and an insulating frame. The magnetic poles are arranged linearly with gaps between them.

[0034] The insulating frame is filled in the gaps between the magnetic poles.

[0035] On the right side of the magnetic poles, there is a second handle, and the second handle is in the shape of a cylinder.

[0036] On the rear end of the magnetic poles, there is a first protrusion.

[0037] The second handle can pass through the first through - hole, and the diameter of the first protrusion is equal to the diameter of the fifth positioning hole.

[0038] The magnetic isolation cavity can accommodate the permanent magnet suction cup.

[0039] In some embodiments, the rear cover plate includes a cover plate body, and a plurality of third through holes are provided on the cover plate body.

[0040] In some embodiments, the positions of the third through holes correspond to those of the second through holes, and the diameters of the third through holes and the second through holes are equal, and the diameter of the bolt screw is equal to the diameters of the third through holes and the second through holes.

[0041] The present invention has at least the following beneficial effects:

[0042] 1. Compared with colloidal bonding, the magnetic suction chuck is adopted, and the suction force of the chuck is large and the adsorption effect is firm; compared with using bolt connection, the wall body will not be damaged, and no other installation tools are required, which is suitable for the situation without installation tools.

[0043] 2. Compared with using a vacuum chuck, the magnetic suction chuck is adopted, and the flatness of the device or the wall surface does not need to be considered, and the permanent magnetic chuck only needs to rotate the second handle to complete the magnetization and demagnetization of the permanent magnetic chuck, and then complete the installation of the power meter on the device or the wall, or remove the power meter from the device or the wall.

[0044] 3. By using the elastic connecting piece and the side plate, the anti-vibration performance of the power meter during use is improved. Through the combination of two groups of elastic connecting pieces and the side plate, the vibration transmitted from the outside can be offset by the deformation of the spring and the connecting rod in the elastic connecting piece, ensuring the safety of the power meter during use.

[0045] 4. The magnetic disk, the shell and the power meter are detachably connected, and can be directly removed for maintenance when maintenance is required, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is an exploded schematic view of the overall structure of the present invention;

[0047] Figure 2 is a schematic view of the structure of the power meter of the present invention;

[0048] Figure 3 is a right view of the structure of the power meter of the present invention;

[0049] Figure 4 is a top view of the structure of the power meter of the present invention;

[0050] Figure 5 is a left view of the structure of the power meter of the present invention;

[0051] Figure 6 is a bottom view of the structure of the power meter of the present invention;

[0052] Figure 7 is a rear view of the structure of the power meter of the present invention;

[0053] Figure 8 Schematic diagram of the housing structure of the present invention;

[0054] Figure 9 Schematic diagram of the structure of the housing of the present invention from another angle;

[0055] Figure 10 Schematic diagram of the permanent magnetic chuck structure of the present invention;

[0056] Figure 11 Schematic diagram of the structure of the permanent magnetic chuck of the present invention from another angle;

[0057] Figure 12 Schematic diagram of the rear cover plate structure of the present invention;

[0058] Figure 13 Schematic diagram of the overall structure of the present invention;

[0059] Figure 14 Cross-sectional view of the overall structure of the present invention;

[0060] Figure 15 Enlarged view of the portion A in the cross-sectional view of the overall structure of the present invention.

[0061] In the figure: 1 - power meter; 2 - housing; 3 - permanent magnetic chuck; 4 - rear cover plate; 5 - bolt; 101 - meter body; 102 - first handle; 103 - display screen; 104 - control button; 105 - front panel; 106 - right side plate; 107 - rear side plate; 108 - left side plate; 109 - first positioning hole; 110 - lower side plate; 111 - first elastic connecting member; 112 - second elastic connecting member; 113 - third elastic connecting member; 114 - fourth elastic connecting member; 115 - second positioning hole; 116 - third positioning hole; 117 - ventilation hole; 201 - housing body; 202 - left side elastic connecting member; 203 - right side elastic connecting member; 204 - lower side elastic connecting member; 205 - fourth positioning hole; 206 - fan; 207 - inner wall; 208 - magnetic isolation cavity; 209 - first through hole; 210 - second through hole; 211 - fifth positioning hole; 301 - magnetic pole; 302 - insulating frame; 303 - second handle; 304 - first protrusion; 401 - cover plate body; 402 - third through hole. Specific embodiments

[0062] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0063] Embodiment 1: Please refer to Figures 1-15, the present invention provides a technical solution: a magnetic suction cup type electric power meter, including an electric power meter 1, a housing 2, and further including a permanent magnetic suction cup 3 and a rear cover plate 4;

[0064] The electric power meter 1 is arranged in the front-end space of the housing 2, and the lower side plate 110 at the bottom of the electric power meter 1 is detachably connected to the lower side of the front end of the housing 2 through an elastic connecting member 204;

[0065] The permanent magnetic suction cup 3 is arranged in the magnetic isolation cavity 208 at the rear end of the housing 2;

[0066] The rear cover plate 4 is detachably connected to the rear end of the housing 2 through bolts 5.

[0067] Furthermore, the electric power meter 1 includes a meter body 101. A front panel 105 is arranged at the front end of the meter body 101. A display screen 103 is arranged in the middle of the front panel 105. A plurality of control buttons 104 are arranged below the display screen 103. The size of the display screen 103 is smaller than the size of the front panel 105, and is specifically determined according to the size of the front panel 105;

[0068] A first handle 102 is arranged at the top of the meter body 101. The first handle 102 is in the shape of a cylinder, and the size of the first handle 102 is determined according to the meter body 101.

[0069] Furthermore, a right side plate 106 is arranged on the right side of the meter body 101. The meter body 101 is connected to the right side plate 106 through a third elastic connecting member 113. The left end of the third elastic connecting member 113 is connected to the right end of the meter body 101, and the right end of the third elastic connecting member 113 is connected to the right side plate 106. The number of the third elastic connecting members 113 is three;

[0070] A first positioning hole 109 is arranged on the right side surface of the right side plate 106, and the number of the first positioning holes 109 is three;

[0071] A left side plate 108 is arranged on the left side of the meter body 101. The left side plate 108 is connected to the meter body 101 through a fourth elastic connecting member 114. The left end of the fourth elastic connecting member 114 is connected to the right end of the left side plate 108, and the right end of the fourth elastic connecting member 114 is connected to the left end of the meter body 101. The number of the fourth elastic connecting members 114 is three;

[0072] A second positioning hole 115 is arranged on the left side surface of the left side plate 108, and the number of the second positioning holes 115 is three;

[0073] The sizes of the first positioning hole 109 and the second positioning hole 115 are equal, and the positions of the first positioning hole 109 and the second positioning hole 115 are symmetrically distributed with respect to the central axis of the meter body 101 along the length direction.

[0074] Further, a lower side plate 110 is provided below the instrument body 101. The lower side plate 110 is connected to the instrument body 101 through a first elastic connecting member 111. The upper end of the first elastic connecting member 111 is connected to the lower end of the instrument body 101, and the lower end of the first elastic connecting member 111 is connected to the upper end surface of the lower side plate 110. The number of the first elastic connecting members 111 is three;

[0075] The lower side surface of the lower side plate 110 is provided with third positioning holes 116, and the number of the third positioning holes 116 is three;

[0076] The first positioning hole 109, the second positioning hole 115, and the third positioning hole 116 are all blind holes.

[0077] Further, a rear side plate 107 is provided at the rear side of the instrument body 101. The rear side plate 107 is connected to the instrument body 101 through a second elastic connecting member 112. The front end of the second elastic connecting member 112 is connected to the rear end of the instrument body 101, and the rear end of the second elastic connecting member 112 is connected to the front end of the rear side plate 107. The number of the second elastic connecting members 112 is four;

[0078] The rear side plate 107 is provided with a plurality of ventilation holes 117. The ventilation holes 117 are through holes, and the ventilation holes 117 are distributed in a circumferential array;

[0079] The first elastic connecting member 111, the second elastic connecting member 112, the third elastic connecting member 113, and the fourth elastic connecting member 114 are each composed of a connecting rod and a spring.

[0080] Further, the housing 2 includes a housing body 201. The front end of the housing body 201 is a space formed by the left, right, and lower side plates with the front and upper plates hollowed out;

[0081] The left side wall of the housing body 201 is provided with left side elastic connecting members 202, and the number of the left side elastic connecting members 202 is three;

[0082] The right side wall of the housing body 201 is provided with right side elastic connecting members 203, and the number of the right side elastic connecting members 203 is three;

[0083] The lower side plate of the housing body 201 is provided with lower side elastic connecting members 204, and the number of the lower side elastic connecting members 204 is three;

[0084] The left side elastic connecting members 202, the right side elastic connecting members 203, and the lower side elastic connecting members 204 are each composed of a connecting rod and a spring;

[0085] The diameters of the connecting rods in the left side elastic connecting members 202, the right side elastic connecting members 203, and the lower side elastic connecting members 204 are the same as the diameters of the first positioning hole 109, the second positioning hole 115, and the third positioning hole 116.

[0086] Furthermore, a fourth positioning hole 205 is provided on the inner wall 207 at the front end of the housing body 201, and a fan 206 is provided in the fourth positioning hole 205;

[0087] The position of the fourth positioning hole 205 corresponds to the position of the ventilation hole 117, the circumferential areas enclosed by the fourth positioning hole 205 and the ventilation hole 117 are equal, and the fourth positioning hole 205 is a blind hole;

[0088] The rear end of the housing body 201 is a magnetic isolation cavity 208, and a fifth positioning hole 211 is provided on the front end face of the magnetic isolation cavity 208. The fifth positioning hole 211 is a blind hole;

[0089] A plurality of second through holes 210 are provided on the rear end face of the housing body 201, and a first through hole 209 is provided on the left side wall of the magnetic isolation cavity 208.

[0090] Furthermore, the permanent magnet suction cup 3 includes magnetic poles 301 and an insulating frame 302. The magnetic poles 301 are linearly arranged, and there are gaps between the magnetic poles 301;

[0091] The insulating frame 302 is filled in the gaps left between the magnetic poles 301;

[0092] A second handle 303 is provided on the right side of the magnetic pole 301, and the second handle 303 is in the shape of a cylinder;

[0093] A first protrusion 304 is provided at the rear end of the magnetic pole 301;

[0094] The second handle 303 can pass through the first through hole 209, and the diameter of the first protrusion 304 is equal to the diameter of the fifth positioning hole 211;

[0095] The magnetic isolation cavity 208 can accommodate the permanent magnet suction cup 3.

[0096] Furthermore, the rear cover plate 4 includes a cover plate body 401, and a plurality of third through holes 402 are provided on the cover plate body 401.

[0097] Furthermore, the positions of the third through holes 402 correspond to the positions of the second through holes 210, and the diameters of the third through holes 402 and the second through holes 210 are equal. The diameter of the screw of the bolt 5 is equal to the diameters of the third through holes 402 and the second through holes 210.

[0098] The following Figures 1-15 introduces the installation and use process of this equipment:

[0099] First, grasp the first handle 102 of the meter body 101 by hand, align the third positioning hole 116 on the lower side plate 110 connected by the first elastic connecting piece 111 on the lower side of the meter body 101 with the lower side elastic connecting piece 204 on the housing body 201 to complete the connection. At the same time, align the second positioning hole 115 on the left side plate 108 connected by the fourth elastic connecting piece 114 on the left side of the meter body 101 with the left side elastic connecting piece 202 on the housing body 201 to complete the connection. Align the first positioning hole 109 on the right side plate 106 connected by the third elastic connecting piece 113 on the right side of the meter body 101 with the right side elastic connecting piece 203 to complete the connection. Thus, the connection between the power meter 1 and the housing 2 is completed.

[0100] Then, install the permanent magnet suction cup 3 by positioning the first protrusion 304 of the permanent magnet suction cup 3 through the fifth positioning hole 211 in the magnetic isolation cavity 208. Then, install the rear cover 4, the permanent magnet suction cup 3, and the housing 2 by passing the bolt 5 through the second through hole 210 and the third through hole 402. The second handle 303 and the permanent magnet suction cup 3 are in butt joint connection. When the connection between the permanent magnet suction cup 3 and the housing 2 is completed, the second handle 303 passes through the first through hole 209. Thus, the installation of the entire equipment is completed.

[0101] During use, just rotate the second handle 303 clockwise by 180 degrees to complete magnetization. At this time, the entire device can be adsorbed on the surface of the equipment target or an object with an iron object. By controlling the button 104 and observing the display screen 103, relevant data can be obtained. During this process, the fan 206 in the fourth positioning hole 205 cools the electronic meter 1; when the relevant data collection is completed and the device needs to be removed, just rotate the second handle 303 counterclockwise by 180 degrees to complete the demagnetization of the permanent magnet suction cup 3, and the device can be removed, which is convenient and fast.

[0102] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A magnetic suction cup type power meter, comprising a power meter (1) and a housing (2), characterized in that: It also includes a permanent magnetic chuck (3) and a rear cover plate (4); The power meter (1) is arranged in the front end space of the shell (2), and the lower side plate (110) at the bottom of the power meter (1) is detachably connected to the lower elastic connecting piece (204) at the front end of the shell (2); The permanent magnetic chuck (3) is arranged in the magnetic isolation cavity (208) at the rear end of the shell (2); The rear cover plate (4) is detachably connected to the rear end of the shell (2) via bolts (5).

2. The magnetic suction cup type power meter according to claim 1, characterized in that: The electric power meter (1) comprises a meter body (101), a front panel (105) is arranged at the front end of the meter body (101), a display screen (103) is arranged in the middle of the front panel (105), a number of control buttons (104) are arranged at the bottom of the display screen (103), and the size of the display screen (103) is smaller than the size of the front panel (105), which is specifically determined according to the size of the front panel (105); A first handle (102) is provided on the top of the instrument body (101); the first handle (102) is in a cylindrical shape; and the size of the first handle (102) is determined according to the instrument body (101).

3. The magnetic suction cup type power meter according to claim 2, characterized in that: A right side plate (106) is provided on the right side of the instrument body (101); the instrument body (101) and the right side plate (106) are connected via a third elastic connecting member (113); the left end of the third elastic connecting member (113) is connected to the right end of the instrument body (101); the right end of the third elastic connecting member (113) is connected to the right side plate (106); and the number of the third elastic connecting members (113) is three; The right side surface of the right side plate (106) is provided with first positioning holes (109), and the number of the first positioning holes (109) is three; A left side plate (108) is provided on the left side of the instrument body (101); the left side plate (108) is connected to the instrument body (101) via a fourth elastic connecting member (114); the left end of the fourth elastic connecting member (114) is connected to the right end of the left side plate (108); the right end of the fourth elastic connecting member (114) is connected to the left end of the instrument body (101); and the number of the fourth elastic connecting members (114) is three; The left side surface of the left plate (108) is provided with second positioning holes (115), and the number of the second positioning holes (115) is three; The first positioning hole (109) and the second positioning hole (115) are of equal size, and the positions of the first positioning hole (109) and the second positioning hole (115) are symmetrically distributed relative to the central axis of the instrument body (101) along the length direction.

4. The magnetic suction cup type power meter according to claim 3, characterized in that: The lower side plate (110) is arranged at the lower side of the instrument body (101), and the lower side plate (110) is connected to the instrument body (101) via a first elastic connecting member (111), the upper end of the first elastic connecting member (111) is connected to the lower end of the instrument body (101), and the lower end of the first elastic connecting member (111) is connected to the upper end surface of the lower side plate (110), and the number of the first elastic connecting members (111) is at least three; The lower side surface of the lower side plate (110) is provided with third positioning holes (116), and the number of the third positioning holes (116) is three; The first positioning hole (109), the second positioning hole (115), and the third positioning hole (116) are all blind holes.

5. The magnetic suction cup type power meter according to claim 4, characterized in that: A rear side plate (107) is provided on the rear side of the instrument body (101); the rear side plate (107) is connected to the instrument body (101) via the second elastic connecting member (112); the front end of the second elastic connecting member (112) is connected to the rear end of the instrument body (101); the rear end of the second elastic connecting member (112) is connected to the front end of the rear side plate (107); and the number of the second elastic connecting members (112) is four; The rear side plate (107) is provided with a number of ventilation holes (117), the ventilation holes (117) are through holes, and the ventilation holes (117) are distributed in a circular array; The first elastic connecting member (111), the second elastic connecting member (112), the third elastic connecting member (113), and the fourth elastic connecting member (114) are all composed of a connecting rod and a spring.

6. The magnetic suction cup type power meter according to claim 5, characterized in that: The shell (2) comprises a shell body (201), the front end of the shell body (201) is composed of left, right and lower side plates, and the front and upper plates are hollowed out; The left side wall of the shell body (201) is provided with a left side elastic connecting piece (202), and the number of the left side elastic connecting pieces (202) is three; The right side wall of the shell body (201) is provided with a right side elastic connecting piece (203), and the number of the right side elastic connecting pieces (203) is three; The lower plate of the shell body (201) is provided with lower elastic connecting members (204), and the number of the lower elastic connecting members (204) is three; The left elastic connecting piece (202), the right elastic connecting piece (203), and the lower elastic connecting piece (204) are all composed of a connecting rod and a spring; The diameters of the connecting rods in the left elastic connecting piece (202), the right elastic connecting piece (203) and the lower elastic connecting piece (204) are consistent with the diameters of the first positioning hole (109), the second positioning hole (115) and the third positioning hole (116).

7. The magnetic suction cup type power meter according to claim 6, characterized in that: A fourth positioning hole (205) is provided on the inner wall (207) at the front end of the housing body (201), and a fan (206) is provided in the fourth positioning hole (205); The position of the fourth positioning hole (205) corresponds to the position of the ventilation hole (117), the circumference of the fourth positioning hole (205) and the ventilation hole (117) is equal in area, and the fourth positioning hole (205) is a blind hole; The rear end of the shell body (201) is a magnetic isolation cavity (208), and the front end surface of the magnetic isolation cavity (208) is provided with a fifth positioning hole (211), and the fifth positioning hole (211) is a blind hole; A plurality of second through holes (210) are provided on the rear end surface of the shell body (201), and a first through hole (209) is provided on the left side wall of the magnetic isolation cavity (208).

8. The magnetic suction cup type power meter according to claim 7, characterized in that: The permanent magnetic chuck (3) comprises magnetic poles (301) and an insulating frame (302); the magnetic poles (301) are arranged linearly, and gaps are left between the magnetic poles (301); The insulating frame (302) fills the gaps left between the magnetic poles (301); A second handle (303) is provided on the right side of the magnetic pole (301), and the second handle (303) is in a cylindrical shape; A first protrusion (304) is provided at the rear end of the magnetic pole (301); The second handle (303) can pass through the first through hole (209), and the diameter of the first protrusion (304) is equal to the diameter of the fifth positioning hole (211); The magnetic isolation cavity (208) can accommodate the permanent magnetic chuck (3).

9. The magnetic suction cup type power meter according to claim 7, characterized in that: The rear cover plate (4) comprises a cover plate body (401), and a plurality of third through holes (402) are provided on the cover plate body (401).

10. The magnetic suction cup type power meter according to claim 9, characterized in that: The third through hole (402) corresponds to the second through hole (210) in position, and the third through hole (402) and the second through hole (210) have the same diameter, and the screw diameter of the bolt (5) is equal to the diameter of the third through hole (402) and the second through hole (210).

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