Voltmeter with protection function

Abstract

The invention relates to the technical field of electronic measuring instruments, and discloses a voltmeter with a protection function, which comprises a voltmeter main body, a first box body is clamped on the outer surface of the voltmeter main body, a first clamping groove is formed in the bottom of the first box body, and a vibration absorption protection mechanism is clamped in the first clamping groove. The top of the vibration absorption protection mechanism is fixedly connected with the bottom of the voltmeter main body, and the upper surface and the lower surface of the voltmeter main body are fixedly connected with horizontal sensors. According to the voltmeter with the protection function, by arranging the gravity center adjusting mechanism, the gravity center of the voltmeter body can accurately shift to the side away from the dial plate, due to the fact that the gravity center shifts, the side away from the dial plate bears impact, direct collision and damage to the dial plate are reduced, the integrity of the dial plate is effectively protected, in addition, part of vibration can be absorbed, and the service life of the voltmeter is prolonged. Precise elements in the voltmeter can be protected.

Description

Technical Field

[0001] The invention relates to the technical field of electronic measuring instruments, in particular to a voltmeter with a protection function. Background Art

[0002] In the modern electrical field, accurate voltage measurement is crucial for equipment operation monitoring, energy management and fault diagnosis. Whether it is motors, inverters and other equipment in industrial production, or household appliances in daily life, their power needs to be measured to ensure their normal operation and efficient use of energy. Voltage measurement is very important, which can help users understand the energy consumption of equipment so as to take energy-saving measures and reduce energy costs. At the same time, power measurement is also an indispensable part of the operation and maintenance of power systems. It can help power engineers monitor the load of the power grid and ensure the stable operation of the power system.

[0003] In modern society, with the widespread application of electronic devices and the increasing importance of energy management, the demand for voltage measurement is increasing. Whether in industrial production, scientific research experiments or daily life, it is necessary to accurately measure the power consumption of various electrical equipment in order to debug equipment, diagnose faults, manage energy and control costs. At the same time, with the accelerated pace of life and the diversification of working methods, the portability of measurement tools is also increasingly required.

[0004] When using or carrying existing voltmeters, if an accident occurs, the voltmeter is often unable to be effectively protected. When encountering a minor bump, the internal precision components are likely to be affected to a certain extent, resulting in a decrease in measurement accuracy, affecting the accuracy of the measurement results; and when encountering a serious bump, the voltmeter may have obvious physical damage such as a cracked shell and a damaged display, and the internal components are also likely to be severely damaged or even completely damaged, reducing work efficiency. Summary of the invention

[0005] The object of the present invention is to provide a voltmeter with a protection function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A voltmeter with a protection function, comprising a voltmeter body, a first box body is clamped on the outer surface of the voltmeter body, a first clamping slot is provided at the bottom of the first box body, a vibration absorbing protection mechanism is clamped inside the first clamping slot, the top of the vibration absorbing protection mechanism is fixedly connected to the bottom of the voltmeter body, a level sensor is fixedly connected to the upper and lower surfaces of the voltmeter body, a first ventilation slot and an extension slot are provided on the outer surface of the first box body, an extension protection mechanism is clamped inside the extension slot, and the bottom of the extension protection mechanism is fixedly connected to the outer surface of the voltmeter body, and further comprising: A center of gravity adjustment mechanism, wherein the center of gravity adjustment mechanism is fixedly connected to the outer surface of the voltmeter body, the center of gravity adjustment mechanism includes a second box body, the second box body is fixedly connected to the outer surface of the voltmeter body, a second ventilation slot is opened at the left end of the second box body, a second card slot is opened at the right side of the second box body, the second card slot passes through the upper surface of the second box body, a first flexible accordion cover is fixedly connected to the inside of the second card slot, an air volume sensor is fixedly connected to the inside of the second ventilation slot, a circular electromagnet is fixedly connected to the top of the second box body by opening a through hole, a first limit rotating shaft and a second limit rotating shaft are fixedly connected to the inner wall of the second box body, the outer surface of the first limit rotating shaft is rotatably connected to the first rotating rod, and the outer surface of the second limit rotating shaft is rotatably connected to the second rotating rod.

[0007] According to the above technical solution, the center of gravity adjustment mechanism also includes the first rotating shaft, the left inner surface of the first rotating rod is fixedly connected to the first rotating shaft, the top of the first rotating shaft is fixedly connected to the left inner surface of the second rotating rod, the outer surface of the first rotating shaft is rotatably connected to the magnetic rotating rod, the inner surface of the second box body is fixedly connected to the first limiting block and the second limiting block, the right side of the second limiting block is fixedly connected to the first spring, the right side of the first spring is fixedly connected to the card slot connecting block, the right inner surface of the first rotating rod is fixedly connected to the second rotating shaft, the top of the second rotating shaft is connected to the second The right inner surface of the rotating rod is fixedly connected, and the outer surface of the second rotating shaft is rotatably connected with a block rotating rod, and the block rotating rod is clamped with the slot connecting block, the right side of the slot connecting block is fixedly connected with a first connecting block, the bottom of the first connecting block is clamped with the second slot, the top of the first connecting block is fixedly connected with a second slot connecting block, and the second slot connecting block is clamped with the top part of the second slot that passes through the second box body, and the right side of the first connecting block is fixedly connected with a heavy circular column, and the outer surface of the heavy circular column is fixedly connected with the first clamping block, and the first clamping block is clamped with the second slot.

[0008] According to the above technical solution, the vibration absorption protection mechanism includes a sleeve, which is fixedly connected to the outer surface of the voltmeter body, the bottom of the sleeve is fixedly connected to a second flexible accordion cover, the bottom of the second flexible accordion cover is fixedly connected to a first bottom plate, the bottom of the first bottom plate is fixedly connected to a rubber bottom plate, the bottom of the first bottom plate is fixedly connected to an elastic component, the elastic component includes a second annular electromagnet, the bottom plate of the second annular electromagnet is fixedly connected to the top of the first bottom plate, the right side of the voltmeter body is fixedly connected to the first annular electromagnet and a second spring, the bottom of the second spring is fixedly connected to the top of the first bottom plate, the inside of the second spring is fixedly connected to a first circular column, the first circular column is fixedly connected to a slot circular column by opening a through hole, and the inside of the slot circular column is clamped with a rubber vibration absorption ball by opening a slot.

[0009] According to the above technical solution, the extension protection mechanism includes a leaf spring, the bottom of the leaf spring is fixedly connected to the outer surface of the voltmeter body, the outer surface of the voltmeter body is fixedly connected with a first rubber support column and a second rubber support column, the top of the first rubber support column and the second rubber support column are fixedly connected with a third box body, the top of the leaf spring is fixedly connected with a first air spring, the top of the first air spring is fixedly connected with a second air spring, the interior of the first air spring is slidably connected with a third annular electromagnet, the interior of the third annular electromagnet is fixedly connected with a second circular column, the outer surface of the second circular column is slidably connected with a fourth annular electromagnet, the fourth annular electromagnet is fixedly connected to the second air spring, the bottom plate of the third box body is connected with the second circular column by a through hole, the top of the second circular column is fixedly connected with a first push column The cam is connected to the second support frame by the second extension column, and the cam is connected to the first support frame by the second extension column.

[0010] According to the above technical solution, the upper surface of the magnetic rotating rod is in contact with the lower surface of the circular electromagnet, the length of the second limit block is the same as the spacing between the first rotating rod and the second rotating rod, the first limit block and the second limit block are both in contact with the outer surface of the magnetic rotating rod, a through hole is provided on the right side of the second box body and a heavy circular column is connected thereto, and four groups of the center of gravity adjustment mechanism are symmetrically arranged on the outer surface of the voltmeter body.

[0011] According to the above technical solution, four groups of the elastic components are symmetrically arranged on the top of the first bottom plate, and the first bottom plate and the rubber bottom plate are clamped with the first clamping groove.

[0012] According to the above technical solution, the extension component is rotatably connected to the symmetrically arranged extension component through a limiting pull block, the third box is clamped with the extension groove, and the extension protection mechanism is symmetrically arranged in four groups on the outer surface of the voltmeter body.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The voltmeter with protection function is provided with a center of gravity adjustment mechanism so that the center of gravity of the voltmeter body can be accurately shifted to the side away from the dial. Due to the shift of the center of gravity, the side away from the dial is more likely to bear the impact, thereby reducing direct bumps and damages to the dial, effectively protecting the integrity of the dial, and in addition, it can also absorb part of the vibration, which is beneficial to protecting the precision components inside the voltmeter.

[0014] 2. The voltmeter with protection function is provided with a vibration absorption protection mechanism. After the center of gravity adjustment mechanism is provided, the concentrated vibration caused by the impact concentrated on the side away from the dial due to the center of gravity offset is absorbed, thereby reducing the damage caused by the concentrated vibration to the structure and internal components of the voltmeter, which not only extends the service life of the voltmeter, but also reduces the cost of maintenance and replacement, and ensures the smooth progress of various work and experiments.

[0015] 3. The voltmeter with protection function is provided with an extension protection mechanism to protect the voltmeter body from the impact when the falling distance is not enough to adjust the side away from the dial downward after the center of gravity changes. It can play a certain buffering role when bearing the impact, further reducing the damage to the voltmeter. At the same time, it can solve the problem that the voltmeter cannot ensure that the side away from the dial is always downward due to the possible rotation caused by the center of gravity shift during the falling process, and protect the dial and internal key components to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0017] Figure 2 It is a partial schematic diagram of the main structure of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the first box body of the present invention.

[0019] Figure 4 It is a structural sectional view of the second box body of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the center of gravity adjustment mechanism of the present invention.

[0021] Figure 6 It is a structural sectional view of the center of gravity adjustment mechanism of the present invention.

[0022] Figure 7 It is a schematic structural diagram of the vibration absorption protection mechanism of the present invention.

[0023] Figure 8 It is a structural cross-sectional view of the elastic component of the present invention.

[0024] Fig. 9 It is a schematic structural diagram of the extension protection mechanism of the present invention.

[0025] Fig.10 It is a structural cross-sectional view of the extension protection mechanism of the present invention.

[0026] In the figure: 1. main body of the voltmeter; 2. first box; 3. Center of gravity adjustment mechanism; 301, second box; 302, second ventilation slot; 303, second card slot; 304, first flexible accordion cover; 305, air volume sensor; 306, circular electromagnet; 307, magnetic rotating rod; 308, first rotating shaft; 309, first limit card block; 310, second limit card block; 311, first limit rotating shaft; 312, first rotating rod; 313, second limit rotating shaft; 314, second rotating rod; 315, first spring; 316, card slot connecting block; 317, first connecting block; 318, card block rotating rod; 319, second rotating shaft; 320, second card slot connecting block; 321, heavy circular column; 322, first card block; 4. First ventilation slot; 5. First card slot; 6. Vibration absorption protection mechanism; 601, ferrule; 602, second flexible accordion cover; 603, first bottom plate; 604, rubber bottom plate; 6001, elastic components; 605, first annular electromagnet; 606, second annular electromagnet; 607, second spring; 608, first circular column; 609, slot circular column; 610, rubber vibration absorbing ball; 7. Level sensor; 8. Extension slot; 9. Extension protection mechanism; 901, leaf spring; 902, first rubber support column; 903, second rubber support column; 904, third annular electromagnet; 905, second circular column; 906, first air spring; 907, second air spring; 908, fourth annular electromagnet; 909, third box; 910, first push plate; 911, second push plate; 912, first extension column; 9001, extension assembly; 913, second connecting block; 914, first rotating shaft connecting block; 915, second rotating shaft connecting block; 916, third rotating shaft connecting block; 917, fourth rotating shaft connecting block; 918, limit pull block; 919, second extension column. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1: See Figure 1-Figure 6 The present invention provides a technical solution: a voltmeter with a protection function, comprising a voltmeter body 1, a first box body 2 is clamped on the outer surface of the voltmeter body 1, a first clamping slot 5 is provided at the bottom of the first box body 2, a vibration absorption protection mechanism 6 is clamped inside the first clamping slot 5, the top of the vibration absorption protection mechanism 6 is fixedly connected to the bottom of the voltmeter body 1, a level sensor 7 is fixedly connected to the upper and lower surfaces of the voltmeter body 1, a first ventilation slot 4 and an extension slot 8 are provided on the outer surface of the first box body 2, an extension protection mechanism 9 is clamped inside the extension slot 8, and the bottom of the extension protection mechanism 9 is fixedly connected to the outer surface of the voltmeter body 1, and also includes: The center of gravity adjustment mechanism 3 is fixedly connected to the outer surface of the voltmeter body 1. The center of gravity adjustment mechanism 3 includes a second box body 301, which is fixedly connected to the outer surface of the voltmeter body 1. A second ventilation slot 302 is provided at the left end of the second box body 301, and a second card slot 303 is provided on the right side of the second box body 301. The second card slot 303 runs through the upper surface of the second box body 301. The interior of the second card slot 303 is fixedly connected with a first flexible accordion cover 304, and the interior of the second ventilation slot 302 is fixedly connected with an air volume sensor 305. The top of the second box body 301 is fixedly connected with a circular electromagnet 306 through a through hole. The inner wall of the second box body 301 is fixedly connected with a first limit shaft 311 and a second limit shaft 313. The outer surface of the first limit shaft 311 is rotatably connected with a first rotating rod 312, and the outer surface of the second limit shaft 313 is rotatably connected with a second rotating rod 314.

[0031] The center of gravity adjustment mechanism 3 also includes a first rotating shaft 308, a left inner surface of a first rotating rod 312 is fixedly connected to the first rotating shaft 308, a top of the first rotating shaft 308 is fixedly connected to a left inner surface of a second rotating rod 314, an outer surface of the first rotating shaft 308 is rotatably connected to a magnetic rotating rod 307, an inner surface of the second box body 301 is fixedly connected to a first limiting block 309 and a second limiting block 310, a right side of the second limiting block 310 is fixedly connected to a first spring 315, a right side of the first spring 315 is fixedly connected to a card slot connecting block 316, a right inner surface of the first rotating rod 312 is fixedly connected to a second rotating shaft 319, a top of the second rotating shaft 319 is fixedly connected to a right inner surface of the second rotating rod 314 The surface is fixedly connected, the outer surface of the second rotating shaft 319 is rotatably connected with a card block rotating rod 318, the card block rotating rod 318 is clamped with the card slot connecting block 316, the right side of the card slot connecting block 316 is fixedly connected with the first connecting block 317, the bottom of the first connecting block 317 is clamped with the second card slot 303, the top of the first connecting block 317 is fixedly connected with the second card slot connecting block 320, the second card slot connecting block 320 is clamped with the top part of the second card slot 303 that passes through the second box body 301, the right side of the first connecting block 317 is fixedly connected with a heavy circular column 321, the outer surface of the heavy circular column 321 is fixedly connected with a first card block 322, and the first card block 322 is clamped with the second card slot 303; The upper surface of the magnetic rotating rod 307 contacts the lower surface of the circular electromagnet 306, the length of the second limit block 310 is the same as the spacing between the first rotating rod 312 and the second rotating rod 314, the first limit block 309 and the second limit block 310 are both in contact with the outer surface of the magnetic rotating rod 307, and a through hole is provided on the right side of the second box body 301 to be connected with a heavy circular column 321. The center of gravity adjustment mechanism 3 is symmetrically arranged in four groups on the outer surface of the voltmeter body 1. By setting the center of gravity adjustment mechanism 3, the center of gravity of the voltmeter body 1 is shifted to the side away from the dial through the heavy circular column 321. Due to the shift of the center of gravity, the side away from the dial is less likely to bear the impact, thereby reducing direct bumps and damages to the dial, effectively protecting the integrity of the dial, and in addition, it can also absorb part of the vibration, which is beneficial to protecting the precision components inside the voltmeter.

[0032] The working principle of this embodiment is as follows: when the voltmeter with a protection function falls, the horizontal sensor 7 senses the horizontal tilt, and the air volume sensor 305 senses the air volume generated by the falling wind speed through the first ventilation slot 4 and the second ventilation slot 302, and then starts the circular electromagnet 306. The circular electromagnet 306 starts and repels the magnetic rotating rod 307 to move downward, and the first limiting block 309 and the second limiting block 310 limit it so that it can only move downward, and the first rotating shaft 308 makes the first rotating rod 312 and the second rotating rod 314 rotate around the first limiting rotating shaft 311 and the second limiting rotating shaft 313, driving the second rotating shaft 319 to rise, and making the block rotating rod 318 move upward The first spring 315 pushes the slot connection block 316, the first connection block 317 and the second slot connection block 320 to move along the second slot 303 without any obstruction, and drives the heavy circular column 321 to move through the first block 322, and cooperates with the symmetrically arranged center of gravity adjustment mechanism to achieve the offset and adjustment of the center of gravity, so that the side away from the dial is downward. If reset is required, the second slot connection block 320 can be pushed to move along the second slot 303, so that the block rotating rod 318 is squeezed by the slot connection block 316 and rotates along the second rotating shaft 319, and enters the slot of the slot connection block 316 to achieve reset.

[0033] Example 2: Please refer to Figure 7-Figure 10 On the basis of the first embodiment, the present invention provides a technical solution: the vibration absorption protection mechanism 6 includes a ferrule 601, the ferrule 601 is fixedly connected to the outer surface of the voltmeter body 1, the bottom of the ferrule 601 is fixedly connected to a second flexible accordion cover 602, the bottom of the second flexible accordion cover 602 is fixedly connected to a first bottom plate 603, the bottom of the first bottom plate 603 is fixedly connected to a rubber bottom plate 604, the bottom of the first bottom plate 603 is fixedly connected to an elastic component 6001, and the elastic component 6001 includes a second annular electromagnet 606 The bottom plate of the second annular electromagnet 606 is fixedly connected to the top of the first bottom plate 603, the right side of the voltmeter body 1 is fixedly connected to the first annular electromagnet 605 and the second spring 607, the bottom of the second spring 607 is fixedly connected to the top of the first bottom plate 603, the inside of the second spring 607 is fixedly connected to the first circular column 608, the first circular column 608 is fixedly connected to the slot circular column 609 through a through hole, and the inside of the slot circular column 609 is clamped with a rubber vibration absorbing ball 610 through a slot; Four groups of elastic components 6001 are symmetrically arranged on the top of the first bottom plate 603. The first bottom plate 603 and the rubber bottom plate 604 are clamped with the first slot 5. By setting the vibration absorption protection mechanism 6 and setting the center of gravity adjustment mechanism 3 through the second spring 607, the concentrated vibration caused by the impact concentrated on the side away from the dial due to the center of gravity shift is absorbed, reducing the damage caused by the concentrated vibration to the structure and internal components of the voltmeter, which not only extends the service life of the voltmeter, but also reduces the cost of maintenance and replacement, ensuring the smooth progress of various work and experiments.

[0034] The extension protection mechanism 9 includes a leaf spring 901, the bottom of which is fixedly connected to the outer surface of the voltmeter body 1, the outer surface of the voltmeter body 1 is fixedly connected with a first rubber support column 902 and a second rubber support column 903, the tops of the first rubber support column 902 and the second rubber support column 903 are fixedly connected with a third box 909, the top of the leaf spring 901 is fixedly connected with a first air spring 906, the top of the first air spring 906 is fixedly connected with a second air spring 907, the interior of the first air spring 906 is slidably connected with a third annular electromagnet 904, the interior of the third annular electromagnet 904 is fixedly connected with a second circular column 905, the outer surface of the second circular column 905 is slidably connected with a fourth annular electromagnet 908, the fourth annular electromagnet 908 is fixedly connected with the second air spring 907, the bottom plate of the third box 909 is connected with the second circular column 905 by opening a through hole, the top of the second circular column 905 is fixedly connected with a first push plate 910, and the third box 9 The upper surface of the inner wall of the third box 909 is fixedly connected with a second push plate 911, the interior of the third box 909 is clamped with a first extension column 912, the right side of the first extension column 912 is fixedly connected with an extension component 9001, and the extension component 9001 is symmetrically arranged in two groups, and the extension component 9001 includes a second connecting block 913, the second connecting block 913 is fixedly connected to the first extension column 912, and the right side of the second connecting block 913 is rotatably connected to the first rotating shaft connecting block 914 through a rotating shaft, and the first rotating shaft connecting block 91 The right side of the third box 909 is connected to a second rotating shaft connection block 915 by rotating shaft, the right side of the second rotating shaft connection block 915 is connected to a third rotating shaft connection block 916 by rotating shaft, the third rotating shaft connection block 916 is connected to a fourth rotating shaft connection block 917 by rotating shaft, the fourth rotating shaft connection block 917 is connected to a limited pull block 918 by rotating shaft, the interior of the third box 909 is clamped with a second extension column 919, and the left side of the second extension column 919 is fixedly connected to a symmetrically arranged extension component 9001; The extension component 9001 is rotatably connected with the symmetrically arranged extension component 9001 through the limit pull block 918, the third box body 909 is clamped with the extension slot 8, and the extension protection mechanism 9 is symmetrically arranged with four groups on the outer surface of the voltmeter body 1. By setting the extension protection mechanism 9, the first extension column 912 and the second extension column 919 protect the voltmeter body 1 from the impact when the falling distance is not enough to adjust the side away from the dial downward after the center of gravity changes, which can play a certain buffering role when bearing the impact, further reducing the damage to the voltmeter. At the same time, it can solve the problem that the voltmeter cannot ensure that the side away from the dial is always downward due to the possible rotation caused by the center of gravity shift during the falling process, and protect the dial and internal key components to the greatest extent.

[0035] The working principle of this embodiment is as follows: when the side away from the dial is facing downward, the first annular electromagnet 605 and the second annular electromagnet 606 convert attraction into repulsion, so that the elasticity of the second spring 607 is released, and the symmetrically arranged elastic component 6001 pushes the first bottom plate 603 and the rubber bottom plate 604 to move downward and move out of the first slot 5. When falling to the ground and colliding with it, the rubber bottom plate 604 absorbs part of the impact and vibration, and transmits it to the second spring 607 through the first bottom plate 603. The rubber vibration-absorbing ball 610 absorbs the impact and vibration inside the circular column 609 of the card slot. At this time, if the rotation occurs due to the offset of the center of gravity, the horizontal sensor 7 senses and starts the third annular electromagnet 904, causing it to attract the fourth annular electromagnet 908 upward, so that the second circular column 905 moves upward. At this time, the first air spring 906 and the second air spring 907 are attracted by the third annular electromagnet 904 and the fourth annular electromagnet 908, so that the insulation of the second circular column 905 is relatively elastic. The second circular column 905 pushes the first push plate 910 upward, and the third box body 909 remains stable due to the limited deformation of the first rubber support column 902 and the second rubber support column 903. The first push plate 910 and the second push plate 911 squeeze the extension component 9001 at the same time, and the first shaft connecting block 914, the second rotating shaft connecting block 915, the third rotating shaft connecting block 916 and the fourth rotating shaft connecting block 917 are compressed to push the second connecting block 913, and the second connecting block 913 pushes the first extending column 912 to move outward and extend, and the second extending column 919 is also pushed outward and extended due to the symmetrically arranged extension component 9001, and the limiting pull block 918 enables it to extend outward at the same time, and cooperates with the symmetrically arranged extension protection mechanism 9. The extension length of both sides is longer than the length of the voltmeter body 1, so that when it contacts the ground, the impact and vibration are transmitted to the leaf spring 901, the first rubber support column 902, the second rubber support column 903, the first air spring 906 and the second air spring 907 through the first extending column 912 and the second extending column 919 to absorb the impact and vibration, thereby protecting the voltmeter body 1.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A voltmeter with a protection function, comprising a voltmeter body (1), the outer surface of the voltmeter body (1) being snap-connected with a first box body (2), the bottom of the first box body (2) being provided with a first slot (5), the interior of the first slot (5) being snap-connected with a vibration absorption protection mechanism (6), the top of the vibration absorption protection mechanism (6) being fixedly connected to the bottom of the voltmeter body (1), the upper surface and the lower surface of the voltmeter body (1) being fixedly connected with a level sensor (7), the outer surface of the first box body (2) being provided with a first ventilation slot (4) and an extension slot (8), the interior of the extension slot (8) being snap-connected with an extension protection mechanism (9), the bottom of the extension protection mechanism (9) being fixedly connected to the outer surface of the voltmeter body (1), characterized in that: Also includes: A center of gravity adjustment mechanism (3), the center of gravity adjustment mechanism (3) being fixedly connected to the outer surface of the voltmeter body (1), the center of gravity adjustment mechanism (3) comprising a second box (301), the second box (301) being fixedly connected to the outer surface of the voltmeter body (1), a second ventilation slot (302) being provided at the left end of the second box (301), a second card slot (303) being provided at the right side of the second box (301), the second card slot (303) penetrating the upper surface of the second box (301), the interior of the second card slot (303) being fixed A first flexible accordion cover (304) is connected, an air volume sensor (305) is fixedly connected inside the second ventilation slot (302), a circular electromagnet (306) is fixedly connected to the top of the second box body (301) via a through hole, a first limit rotating shaft (311) and a second limit rotating shaft (313) are fixedly connected to the inner wall of the second box body (301), the outer surface of the first limit rotating shaft (311) is rotatably connected to a first rotating rod (312), and the outer surface of the second limit rotating shaft (313) is rotatably connected to a second rotating rod (314).

2. A voltmeter with a protection function according to claim 1, characterized in that: The center of gravity adjustment mechanism (3) further comprises a first rotating shaft (308), a left inner surface of the first rotating rod (312) being fixedly connected to the first rotating shaft (308), a top of the first rotating shaft (308) being fixedly connected to a left inner surface of a second rotating rod (314), an outer surface of the first rotating shaft (308) being rotatably connected to a magnetic rotating rod (307), an inner surface of the second box (301) being fixedly connected to a first limiting block (309) and a second limiting block (310), a right side of the second limiting block (310) being fixedly connected to a first spring (315), a right side of the first spring (315) being fixedly connected to a card slot connection block (316), a right inner surface of the first rotating rod (312) being fixedly connected to a second rotating shaft (319), a top of the second rotating shaft (319) being fixedly connected to a right inner surface of the second rotating rod (314), and a magnetic rotating rod (307) being rotatably connected to the outer surface of the first rotating shaft (308). The second rotating shaft (319) is rotatably connected to a block rotating rod (318), the block rotating rod (318) is clamped with the slot connecting block (316), the right side of the slot connecting block (316) is fixedly connected to a first connecting block (317), the bottom of the first connecting block (317) is clamped with the second slot (303), the top of the first connecting block (317) is fixedly connected to a second slot connecting block (320), the second slot connecting block (320) is clamped with the top part of the second slot (303) penetrating the second box body (301), the right side of the first connecting block (317) is fixedly connected to a heavy circular column (321), the outer surface of the heavy circular column (321) is fixedly connected to a first clamping block (322), the first clamping block (322) is clamped with the second slot (303).

3. A voltmeter with protection function according to claim 1, characterized in that: The vibration absorption protection mechanism (6) comprises a ferrule (601), the ferrule (601) being fixedly connected to the outer surface of the voltmeter body (1), the bottom of the ferrule (601) being fixedly connected to a second flexible accordion cover (602), the bottom of the second flexible accordion cover (602) being fixedly connected to a first bottom plate (603), the bottom of the first bottom plate (603) being fixedly connected to a rubber bottom plate (604), the bottom of the first bottom plate (603) being fixedly connected to an elastic component (6001), the elastic component (6001) comprising a second annular electromagnet (606), the second annular electromagnet (606) being fixedly connected to a first bottom plate (603), and the second annular electromagnet (606) being fixedly connected to a second bottom plate (603). The bottom plate of the magnet (606) is fixedly connected to the top of the first bottom plate (603); the right side of the voltmeter body (1) is fixedly connected to a first annular electromagnet (605) and a second spring (607); the bottom of the second spring (607) is fixedly connected to the top of the first bottom plate (603); the interior of the second spring (607) is fixedly connected to a first circular column (608); the first circular column (608) is fixedly connected to a slot circular column (609) via a through hole; the interior of the slot circular column (609) is clamped with a rubber vibration absorbing ball (610) via a slot.

4. The voltage meter with protection function according to claim 1, characterized in that: The extension protection mechanism (9) comprises a leaf spring (901), the bottom of the leaf spring (901) being fixedly connected to the outer surface of the voltmeter body (1), the outer surface of the voltmeter body (1) being fixedly connected to a first rubber support column (902) and a second rubber support column (903), the tops of the first rubber support column (902) and the second rubber support column (903) being fixedly connected to a third box (909), the top of the leaf spring (901) being fixedly connected to a first air spring (906), and the top of the first air spring (906) being fixedly connected to a second air spring (907). The first air spring (906) is internally slidably connected to a third annular electromagnet (904), the third annular electromagnet (904) is internally fixedly connected to a second circular column (905), the outer surface of the second circular column (905) is slidably connected to a fourth annular electromagnet (908), the fourth annular electromagnet (908) is fixedly connected to the second air spring (907), the bottom plate of the third box body (909) is connected to the second circular column (905) by opening a through hole, the top of the second circular column (905) is fixedly connected to a first push plate (910), the third box body A second push plate (911) is fixedly connected to the upper surface of the inner wall of the third box body (909); a first extension column (912) is clamped inside the third box body (909); a stretching assembly (9001) is fixedly connected to the right side of the first extension column (912); the stretching assembly (9001) is symmetrically arranged in two groups; the stretching assembly (9001) includes a second connecting block (913); the second connecting block (913) is fixedly connected to the first extension column (912); the right side of the second connecting block (913) is rotatably connected to the first rotating shaft connecting block (914) via a rotating shaft; the first rotating shaft connecting block (914) is connected to the first rotating shaft connecting block (914); The right side of the connecting block (914) is rotatably connected to a second rotating shaft connecting block (915) via a rotating shaft, the right side of the second rotating shaft connecting block (915) is rotatably connected to a third rotating shaft connecting block (916) via a rotating shaft, the third rotating shaft connecting block (916) is rotatably connected to a fourth rotating shaft connecting block (917) via a rotating shaft, the fourth rotating shaft connecting block (917) is rotatably connected to a limiting pull block (918) via a rotating shaft, a second extension column (919) is clamped inside the third box body (909), and a symmetrically arranged extension component (9001) is fixedly connected to the left side of the second extension column (919).

5. The voltage meter with protection function according to claim 2, characterized in that: The upper surface of the magnetic rotating rod (307) contacts the lower surface of the circular electromagnet (306); the length of the second limit block (310) is the same as the distance between the first rotating rod (312) and the second rotating rod (314); the first limit block (309) and the second limit block (310) both contact the outer surface of the magnetic rotating rod (307); a through hole is provided on the right side of the second box (301) to which a heavy circular column (321) is connected; and four groups of the center of gravity adjustment mechanism (3) are symmetrically arranged on the outer surface of the voltmeter body (1).

6. A voltmeter with protection function according to claim 3, characterized in that: Four groups of the elastic components (6001) are symmetrically arranged on the top of the first bottom plate (603), and the first bottom plate (603) and the rubber bottom plate (604) are snap-connected with the first snap-in groove (5).

7. The voltage meter with protection function according to claim 4, characterized in that: The extension component (9001) is rotatably connected to a symmetrically arranged extension component (9001) via a limit pull block (918); the third box (909) is snap-fitted to the extension slot (8); and four groups of the extension protection mechanism (9) are symmetrically arranged on the outer surface of the voltmeter body (1).

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