CN210514442U

CN210514442U - Physical experiment electricity voltmeter

Info

Publication number: CN210514442U
Application number: CN201921064989.7U
Authority: CN
Inventors: 姚夸克
Original assignee: Shenzhen Cross One Technology Co Ltd
Current assignee: Shenzhen Cross One Technology Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-12
Anticipated expiration: 2029-07-09

Abstract

The utility model relates to a physical experiment electricity voltmeter, which comprises a base, a face cover, an adjusting knob, a first boss, a second boss, a third boss, a sleeve, a gauge needle, a dial plate, a cover plate and a circuit board, wherein the face cover is arranged on the front face of the base, the dial plate is arranged between the face cover and the base, the gauge needle is connected with the gauge needle and is arranged in the face cover, and a filler is arranged at the installation position, the adjusting knob passes through the face cover to be connected with the gauge needle and the gauge needle, the bottom of the front face of the base is uniformly provided with the first boss, the second boss and the third boss from left to right, the first boss, the second boss and the third boss are all provided with any one of a TYPE-C interface, a Micro-B interface or a lighting interface, the first boss, the second boss or the third boss all comprise a transparent shell, a filler and a dustproof plug, the cover plate is arranged at the bottom of the base, and the circuit board is fixed, just the circuit board covers there is the filler, the utility model has the advantages of data reflection is reasonable more accurate, and is simple durable, is applicable to the teaching and uses.

Description

Physical experiment electricity voltmeter

Technical Field

The utility model relates to a physics experiment electricity voltmeter belongs to teaching aid technical field.

Background

In the physical experiment examination, a teacher observes the operation of students to evaluate the physical experiment score. At present, most of circuit experiment voltmeters have the following problems: in the physical experiment examination process, whether the reading of the voltmeter read by the student is consistent with the actual reading can be judged only through human eyes, a teacher is required to perform accounting, the accuracy is low, the scoring efficiency is low, the wiring part of the traditional voltmeter is easy to damage, and the problem of poor contact is easy to occur in the use process.

SUMMERY OF THE UTILITY MODEL

For solving the above problem, the utility model provides a physics experiment electricity voltmeter, its intelligent degree is high, real-time supervision, and data are reliable, and easy operation can judge the wiring condition of voltmeter and the current value of current voltmeter, can play important role in the physics teaching, and specific technical scheme is as follows:

an electric voltmeter for physical experiments comprises a base, a face cover, an adjusting knob, a first boss, a second boss, a third boss, a sleeve, a meter head, a meter needle, a meter plate, an apron and a circuit board, wherein the face cover is arranged on the front side of the base, the meter plate is arranged between the face cover and the base, the meter needle is connected with the meter head and arranged in the face cover, and a filler is arranged at the installation position, the adjusting knob penetrates through the face cover to be connected with the meter head and the meter needle, the front bottom of the base is uniformly provided with the first boss, the second boss and the third boss from left to right, the first boss, the second boss or the third boss are respectively provided with any one of a TYPE-C interface, a Micro-B interface or a lighting interface, the first boss, the second boss or the third boss respectively comprise a transparent shell, the filler and a dustproof plug, the apron is arranged at the bottom of the base, the circuit board is fixed on the surface of the apron, and the circuit board is covered with fillers, the circuit board is provided with a substrate, the substrate is provided with a cable interface connected with the first boss, the second boss or the third boss, and the cable interface is connected with a signal processing chip through the substrate and is connected with the gauge outfit through a circuit and a wire circuit of the substrate.

As a further technical scheme of the utility model, the positive middle part of base is equipped with sleeve installation position, gauge outfit installation position and face lid installation position from inside to outside in proper order, sleeve installation position can be located to the sleeve, gauge outfit installation position can be located to the gauge outfit, face lid installation position can be located to the face lid.

As a further technical scheme of the utility model, the bottom of base is connected between first boss and circuit board through first boss installation position, connects between second boss and circuit board through second boss installation position, connects between third boss and circuit board through third boss installation position.

As the utility model discloses further technical scheme, the shape of first boss, second boss, third boss is the ring shape, and the bottom both sides all are equipped with elasticity and detain to detain through elasticity and match respectively with first boss installation position, second boss installation position and third boss installation position one-to-one.

As a further technical scheme of the utility model, the base openly is equipped with the line hole with the slope that is greater than 45 acute angles in the middle part, allows to connect the electric wire circuit between gauge outfit and the base plate to pass through.

As the utility model discloses further technical scheme, the filler is anhydrous transparent silica gel, the dust plug is waterproof rubber buffer material.

The beneficial effects of the utility model reside in that, compare with prior art: in a physical experiment examination, the working state of a voltmeter is detected through a circuit board, and data are transmitted by using a USB circuit or an electric signal, so that the traditional method of giving scores by naked eyes is replaced, and the method is quick and accurate; the cable interface adopts TYPE-C interface, tall and erect interface of ann, apple interface etc. to the mode wiring of inserting, replaces original wiring mode of twisting the head and screwing up the cable, and wiring mode is simple reliable to it is sturdy and durable.

Drawings

Fig. 1 is an appearance schematic diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a diagram illustrating the effect of the present invention.

Fig. 4 is a schematic circuit diagram of the present invention.

Wherein: the watch comprises a base 1, a sleeve mounting position 101, a gauge outfit mounting position 102, a face cover mounting position 103, a wire passing hole 104, a first boss mounting position 105, a second boss mounting position 106, a third boss mounting position 107, a face cover 2, an adjusting knob 3, a first boss 4, a second boss 5, a third boss 6, a sleeve 7, a gauge outfit 8, a gauge needle 9, a dial 10, a cover plate 11, a circuit board 12, a base plate 121, a cable interface 122 and an elastic buckle 13.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings and related embodiments, wherein the following embodiments are only preferred embodiments for better illustrating the present invention, and the embodiments of the present invention are not limited to the following embodiments, and the related essential components of the present invention related to the technical field should be considered as known in the art and can be known and mastered by those skilled in the technical field.

In the description of the present invention, it is to be understood that the terms "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and the like are used in the orientation or positional relationship indicated in the drawings, merely for the purpose of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Shown in the attached drawing, the utility model relates to a physical experiment electricity voltmeter, including base 1, face lid 2, adjust knob 3, first boss 4, second boss 5, third boss 6, sleeve 7, gauge outfit 8, indicator 9, dial plate 10, apron 11, circuit board 12, face lid 2 locates the base 1 openly, this face lid 2 is the cuboid, and the material is transparent material, can observe the reading on dial plate 10 of indicator 9 behind face lid 2, it is together fixed with base 1 through the bolt, dial plate 10 locates between face lid 2 and base 1, indicator 9 links to each other and locates in face lid 2 with gauge outfit 8, and be equipped with the filler in the installation department, can effectively resist the impact from the external world through the filler, thereby promote the loss resistance ability of gauge outfit 8 and gauge outfit 9, increase the durability, adjust knob 3 passes face lid 2 and links to each other with gauge outfit 8, gauge outfit 9, the position of a pointer 9 on a meter head 8 can be adjusted by adjusting the rotation direction of an adjusting knob 3 externally, so that zero setting work can be carried out on the voltmeter before the voltmeter is not used, a first boss 4, a second boss 5 and a third boss 6 are uniformly arranged at the bottom of the front surface of the base 1 from left to right, the first boss 4, the second boss 5 or the third boss 6 are respectively provided with any one of a TYPE-C interface, a Micro-B interface or a Lightening interface, the first boss 4, the second boss 5 or the third boss 6 respectively comprise a transparent shell, a filler and a dustproof plug, the filler is arranged in a gap between the transparent shell and the interface, the dustproof plug is arranged outside the interface and is connected with the transparent shell, so that the durability of the components can be improved, and sundries are prevented from entering the interface when the base 1 is not used, the base 1 can be provided with a cover plate mounting hole, the number of the cover plate mounting holes is not limited, the cover plate 11 is arranged at the bottom of the base and is fixed through the cover plate mounting holes, the base 1 can also be provided with circuit board mounting holes which are matched with the cover plate 11, the circuit board 12 is fixed on the surface of the cover plate 11 and is further fixed through the circuit board mounting holes, and the circuit board 12 is covered with filler, so that the circuit board 12 has good impact resistance and waterproof performance, the durability and reliability are improved, the circuit board 12 is provided with a base plate 121, the base plate 121 is provided with a cable interface 122 connected with the first boss 4, the second boss 5 or the third boss 6, the cable interface 122 is connected with a signal processing chip through the base plate 121 and is connected with the meter head 8 through a circuit and an electric wire circuit of the base plate 121, the signal processing chip is the same as a single chip in the prior art, and is adaptive to the processing and transmission of current data by changing corresponding parameters, therefore, the current data can be accurately transmitted to the operation platform or the host for signal receiving in real time, monitored by teachers, judged whether the operation of students meets the operation specification or not, and processed in time.

In a preferred embodiment, a sleeve mounting position 101, a gauge head mounting position 102 and a surface cover mounting position 103 are sequentially arranged in the middle of the front surface of the base 1 from inside to outside, the sleeve 7 can be arranged in the sleeve mounting position 101, the gauge head 8 can be arranged in the gauge head mounting position 102, and the surface cover 9 can be arranged in the surface cover mounting position 103, so that the overall fixing performance is improved, and the durability of the component is improved.

In a preferred embodiment, the bottom of the base 1 is connected between the first boss 4 and the circuit board 12 through the first boss mounting position 105, connected between the second boss 5 and the circuit board 12 through the second boss mounting position 106, and connected between the third boss 6 and the circuit board 12 through the third boss mounting position 107, after the circuit board 12 is assembled in the base 1, the cable interface 122 can be exposed from the first boss mounting position 105, the second boss mounting position 106 and the third boss mounting position 107, after the first boss 4, the second boss 5 and the third boss 6 are assembled, the upper end plane of the cable interface 122 is flush with the upper surfaces of the first boss 4, the second boss 5 and the third boss 6, the cable interfaces 122 corresponding to the first boss 4, the second boss 5 and the third boss 6 respectively represent different ranges, for example, the ranges of the voltmeter are respectively selected as "3V" and "15V", the cable interface 122 on the first boss 4 represents the 'negative pole', the cable interface 122 on the second boss 5 represents the '3V' range, the cable interface 122 on the third boss 6 represents the '15V' range, when the cable is connected to the first boss 4 and the second boss, 5 represents the range of '3V', so that the proper measuring range is selected for connecting two cables when actually connecting.

According to a preferred embodiment, the first boss 4, the second boss 5 and the third boss 6 are all in a circular ring shape, the elastic buckles 13 are arranged on two sides of the bottom end of the first boss 4, the second boss 5 and the third boss 6 and are respectively matched with the first boss mounting position 105, the second boss mounting position 106 and the third boss mounting position 107 one by one through the elastic buckles 13, the colors of the first boss 4, the second boss 5 and the third boss 6 can be consistent or inconsistent, and the first boss 4, the second boss 5 and the third boss 6 can be allocated according to actual conditions.

In a preferred embodiment, the front surface of the base 1 is inclined at an acute angle greater than 45 °, and the middle part of the base is provided with a wire through hole 104 for allowing a wire circuit connecting the meter head 8 and the substrate 121 to pass through.

The utility model provides a preferred embodiment, the filler is anhydrous transparent silica gel, the dustproof stopper is waterproof rubber buffer material, not only can play good buffering effect like this, has good waterproof dirt-proof efficiency in addition, does not influence the circuit operation again, and the source is also extensive.

With reference to the implementation examples of fig. 3 and 4, the beneficial effects of the present invention are that, compared with the prior art: in a physical experiment examination, the working state of a voltmeter is detected through the circuit board 12, and data are transmitted by using a USB circuit or an electric signal, so that the traditional method of giving scores by naked eyes is replaced, and the method is quick and accurate; cable interface 122 adopts TYPE-C interface, tall and erect interface of ann, and the mode wiring to inserting such as apple interface replaces original wiring mode of twisting the head and screwing up the cable, and wiring mode is simple reliable to it is sturdy and durable.

It should be noted that, in the utility model discloses in, the voltmeter also can be through the circuit structure of the type that changes the gauge outfit and circuit board for the voltmeter becomes the ampere meter, also satisfies due physical properties and measurement function equally.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electric voltmeter for physical experiments, which comprises a base, a face cover, an adjusting knob, a first boss, a second boss, a third boss, a sleeve, a meter head, a meter needle, a meter plate, a cover plate and a circuit board, and is characterized in that the face cover is arranged on the front side of the base, the meter plate is arranged between the face cover and the base, the meter needle is connected with the meter head and arranged in the face cover, and a filler is arranged at the installation position, the adjusting knob penetrates through the face cover to be connected with the meter head and the meter needle, the front bottom of the base is uniformly provided with the first boss, the second boss and the third boss from left to right, the first boss, the second boss or the third boss are respectively provided with any one of a TYPE-C interface, a Micro-B interface or a Lightening interface, the first boss, the second boss or the third boss respectively comprise a transparent shell, a filler and a dustproof plug, the cover plate is arranged at the bottom of the base, the circuit board is fixed on the surface of the cover plate, the circuit board is covered with filler, the circuit board is provided with a base plate, the base plate is provided with a cable interface connected with the first boss, the second boss or the third boss, and the cable interface is connected with a signal processing chip through the base plate and is connected with the gauge outfit through a circuit and an electric wire circuit of the base plate.

2. The physical experiment electricity voltmeter according to claim 1, wherein a sleeve mounting position, a meter head mounting position and a surface cover mounting position are sequentially arranged in the middle of the front surface of the base from inside to outside, the sleeve can be arranged in the sleeve mounting position, the meter head can be arranged in the meter head mounting position, and the surface cover can be arranged in the surface cover mounting position.

3. The physical experiment electricity voltmeter of claim 1, wherein the bottom of the base is connected between the first boss and the circuit board through the first boss mounting location, connected between the second boss and the circuit board through the second boss mounting location, and connected between the third boss and the circuit board through the third boss mounting location.

4. The physical experiment electricity voltmeter according to claim 1, wherein the first boss, the second boss and the third boss are all circular rings, and elastic buckles are respectively arranged on two sides of the bottom end of the first boss, the second boss and the third boss, and are respectively matched with the first boss mounting position, the second boss mounting position and the third boss mounting position one by one through the elastic buckles.

5. The physics experiment electricity voltmeter of claim 1, wherein the front face of the base is inclined at an acute angle of more than 45 °, and the middle portion of the base is provided with a wire through hole for allowing the passage of the wire circuit connecting the meter head and the base plate.

6. The physical experiment electricity voltmeter of claim 1, wherein the filler is anhydrous transparent silica gel, and the dust plug is made of waterproof rubber plug.