Novel electrometer

Abstract

The utility model relates to the technical field of physical experiment tools, in particular to a novel electrometer which comprises a shell upper cover, an extraction assembly is rotatably connected to the interior of the shell upper cover and comprises a rotating rod and a handle, and the outer surface of the rotating rod is rotatably connected to the interior of the shell upper cover. A handle is fixedly connected to one side of the rotating rod, a shell bottom shell is connected to the bottom of the shell upper cover in a clamped mode, a display assembly is connected to one side of the shell bottom shell in a clamped mode and comprises a panel and a display screen, and one side of the panel is connected to one side of the shell bottom shell in a clamped mode. Through the arrangement of the rotating rod and the lifting handle, during use, the lifting handle is driven to rotate through rotation of the rotating rod, then the front-back placing position of the lifting handle is adjusted, and then the effects that the lifting handle can be horizontally placed or obliquely erected and is convenient to use are achieved through matched use of the shell upper cover, the rotating rod and the lifting handle; and the conditions that the instrument is difficult to carry and easy to damage due to the old appearance are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of physical experiment tools, in particular to a novel electrostatic meter. Background Art

[0002] In the electrostatics teaching demonstration experiments of middle school physics and electromagnetism, experimental instruments for measuring electrostatic polarity and static electricity are needed in many places to help students have a perceptual understanding of invisible static electricity.

[0003] Traditional electrometers have many shortcomings and disadvantages in teaching and use, such as insufficient measurement accuracy, poor stability, and old appearance. When the battery is low, the measurement accuracy is easily affected. The brightness is not enough, and it is not convenient for students to watch the changes in experimental data in real time from a distance during teaching demonstrations. Therefore, a new type of electrometer is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a novel electrometer to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel electrometer comprising

[0007] An upper cover of the outer shell, wherein the interior of the upper cover of the outer shell is rotatably connected to an extraction assembly, wherein the extraction assembly comprises a rotating rod and a handle, wherein the outer surface of the rotating rod is rotatably connected to the interior of the upper cover of the outer shell, and one side of the rotating rod is fixedly connected to the handle;

[0008] The bottom of the housing upper cover is clamped with the housing bottom shell, one side of the housing bottom shell is clamped with the display assembly, the display assembly includes a panel and a display screen, one side of the panel is clamped with the side of the housing bottom shell, and one side of the panel is fixedly connected with the display screen;

[0009] A back plate is clamped on a side of the housing bottom shell away from the panel, a switch assembly is clamped on an inner bottom wall of the housing bottom shell, a probe is clamped on one side of the panel, and a grounding socket is clamped on one side of the panel.

[0010] Preferably, the display assembly further comprises a transformer, and a connecting slot is formed on the inner bottom wall of the bottom shell of the outer shell, and a transformer is clamped inside the connecting slot.

[0011] Preferably, a square slot is provided on one side of the back plate, and a power socket is fixedly connected inside the square slot.

[0012] Preferably, a snap-in slot is provided on one side of the bottom shell of the housing, and a snap-in pin is snap-in engaged inside the snap-in slot.

[0013] Preferably, the switch assembly comprises a circuit main board and a power switch, the bottom of the circuit main board is clamped to the inner bottom wall of the bottom shell of the outer shell, and the power switch is clamped to one side of the circuit main board.

[0014] Preferably, a circular slot is provided on one side of the panel, and a reset switch is clamped inside the circular slot.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This novel electrometer is provided with a rotating rod and a handle. When in use, the rotating rod is rotated to drive the handle to rotate, thereby adjusting the front and rear placement of the handle. Then, the upper cover of the outer shell, the rotating rod and the handle are used in coordination, so that the instrument can be placed flat or tilted and carried, which is convenient to use, and avoids the situation where the instrument is difficult to carry due to its old appearance and is easily damaged.

[0017] 2. This new type of electrometer, through the setting of the panel and the display screen, when in use, the display screen is fixed by fixing the panel. The display screen is a large-size, high-brightness red digital LED display with high brightness and clear display, which can be clearly seen from several meters away. Then, through the coordinated use of the transformer, panel, display screen and circuit board, the transformer is powered by 220V AC power and has a built-in linear voltage stabilization system, so as to achieve the effect of convenient demonstration teaching, small ripple noise and stable power supply, avoiding the situation that the measurement accuracy is easily affected when the battery is low and it is inconvenient for students to watch the changes of experimental data in real time at a long distance during the teaching demonstration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional appearance schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of a panel of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly of the device of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the extraction component and the housing upper cover of the utility model.

[0022] In the figure: 1. Housing cover; 2. Rotating rod; 3. Handle; 4. Housing bottom shell; 5. Panel; 6. Display screen; 7. Back panel; 8. Probe; 9. Grounding socket; 10. Transformer; 11. Power socket; 12. Buckle pin; 13. Circuit board; 14. Power switch; 15. Reset switch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0025] A novel electrometer comprising

[0026] The upper cover 1 of the outer shell is rotatably connected to the interior of the upper cover 1 with an extraction assembly, the extraction assembly includes a rotating rod 2 and a handle 3, the outer surface of the rotating rod 2 is rotatably connected to the interior of the upper cover 1 of the outer shell, and one side of the rotating rod 2 is fixedly connected to the handle 3;

[0027] The bottom of the housing upper cover 1 is clamped with the housing bottom shell 4, and one side of the housing bottom shell 4 is clamped with the display assembly, which includes a panel 5 and a display screen 6. One side of the panel 5 is clamped with one side of the housing bottom shell 4, and one side of the panel 5 is fixedly connected with the display screen 6;

[0028] A back plate 7 is clamped on a side of the housing bottom shell 4 away from the panel 5, a switch assembly is clamped on the inner bottom wall of the housing bottom shell 4, a probe 8 is clamped on one side of the panel 5, and a grounding socket 9 is clamped on one side of the panel 5;

[0029] In this embodiment, preferably, the display assembly further includes a transformer 10, and a connecting slot is provided on the inner bottom wall of the bottom shell 4 of the outer shell, and the transformer 10 is clamped inside the connecting slot. The transformer 10 is fixed by the setting of the connecting slot, and the device accuracy and brightness are improved by the operation of the transformer 10, thereby achieving the effect of improving the performance of the device;

[0030] In this embodiment, preferably, a square slot is opened on one side of the back plate 7, and a power socket 11 is fixedly connected inside the square slot. The power socket 11 is fixed by the setting of the square slot, and the operation of the power socket 11 provides power to the device, thereby achieving the effect of preventing the device from being insufficiently powered;

[0031] In this embodiment, preferably, a snap-in slot is provided on one side of the bottom shell 4 of the housing, and a snap-in pin 12 is snap-into the inside of the snap-in slot. The snap-in slot is provided to drive the snap-in pin 12 to fix the device, and the operation of the snap-in pin 12 drives the devices to be connected, thereby achieving the effect of facilitating the disassembly of the device.

[0032] In this embodiment, preferably, the switch assembly includes a circuit main board 13 and a power switch 14, the bottom of the circuit main board 13 is clamped to the inner bottom wall of the housing bottom shell 4, and the power switch 14 is clamped to one side of the circuit main board 13. The power switch 14 is powered by the setting of the circuit main board 13, and the device is turned on and off by pressing the power switch 14, thereby achieving the effect of controlling the device;

[0033] In this embodiment, preferably, a circular slot is opened on one side of the panel 5, and a reset switch 15 is clamped inside the circular slot. The reset switch 15 is fixed by the setting of the circular slot, and the displayed number is reset by pressing the reset switch 15, thereby achieving the effect of facilitating continuous demonstration.

[0034] When a new type of electrometer of the present embodiment is in use, the rotating rod 2 and the handle 3 are set. When in use, the handle 3 is rotated by the rotation of the rotating rod 2, and then the front and rear placement positions of the handle 3 are adjusted. Then, the upper cover 1 of the shell, the rotating rod 2 and the handle 3 are used in coordination, so that the instrument can be placed horizontally or tilted and carried by hand, which is convenient to use, and the situation that the instrument is old and difficult to carry and the instrument is easily damaged is avoided. Then, through the arrangement of the panel 5 and the display screen 6, when in use, the display screen 6 is fixed by fixing the panel 5. The display screen 6 is a large-size, high-brightness red digital LED display with high brightness and clear display, which can be clearly seen from several meters away. Then, through the coordinated use of the transformer 10, the panel 5, the display screen 6 and the circuit main board 13, the effect of convenient demonstration and teaching, low ripple noise and stable power supply is achieved, and the measurement accuracy is easily affected when the battery is low and the inconvenience for students during teaching demonstration is avoided. Watch the changes of experimental data in real time at a long distance, drive the transformer 10 to be fixed by setting the connecting slot, and then improve the accuracy and brightness of the device through the operation of the transformer 10, so as to achieve the effect of improving the performance of the device, drive the power socket 11 to be fixed by setting the square slot, and then provide power to the device through the operation of the power socket 11, so as to achieve the effect of preventing the device from being insufficiently powered, drive the buckle pin 12 to be fixed by setting the snap-in slot, and then drive the devices to be connected through the operation of the buckle pin 12, so as to achieve the effect of facilitating the disassembly of the device, power the power switch 14 by setting the circuit main board 13, and then turn the device on and off by pressing the power switch 14, so as to achieve the effect of controlling the device, drive the reset switch 15 to be fixed by setting the circular slot, and then reset the displayed number by pressing the reset switch 15, so as to achieve the effect of facilitating continuous demonstration.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel electrometer, characterized in that: include An outer shell cover (1), wherein the interior of the outer shell cover (1) is rotatably connected to an extraction assembly, wherein the extraction assembly comprises a rotating rod (2) and a handle (3), wherein the outer surface of the rotating rod (2) is rotatably connected to the interior of the outer shell cover (1), and one side of the rotating rod (2) is fixedly connected to the handle (3); The bottom of the housing upper cover (1) is clamped with a housing bottom shell (4), one side of the housing bottom shell (4) is clamped with a display assembly, the display assembly comprises a panel (5) and a display screen (6), one side of the panel (5) is clamped with a side of the housing bottom shell (4), and one side of the panel (5) is fixedly connected with the display screen (6); A back plate (7) is clamped on a side of the housing bottom shell (4) away from the panel (5), a switch assembly is clamped on an inner bottom wall of the housing bottom shell (4), a probe (8) is clamped on one side of the panel (5), and a grounding socket (9) is clamped on one side of the panel (5).

2. A novel electrometer according to claim 1, characterized in that: The display assembly further comprises a transformer (10), and a connecting slot is provided on the inner bottom wall of the outer shell bottom shell (4), and the transformer (10) is clamped inside the connecting slot.

3. A novel electrometer according to claim 1, characterized in that: A square slot is provided on one side of the back plate (7), and a power socket (11) is fixedly connected inside the square slot.

4. A novel electrometer according to claim 1, characterized in that: A snap-fitting slot is provided on one side of the outer shell bottom shell (4), and a snap-fitting pin (12) is snap-fitted inside the snap-fitting slot.

5. A novel electrometer according to claim 1, characterized in that: The switch assembly comprises a circuit main board (13) and a power switch (14); the bottom of the circuit main board (13) is clamped to the inner bottom wall of the housing bottom shell (4); and the power switch (14) is clamped to one side of the circuit main board (13).

6. A novel electrometer according to claim 1, characterized in that: A circular slot is provided on one side of the panel (5), and a reset switch (15) is clamped inside the circular slot.

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