CN213844518U

CN213844518U - Digital timer

Info

Publication number: CN213844518U
Application number: CN202023043255.6U
Authority: CN
Inventors: 章澄
Original assignee: Ningbo Huamao Cultural Educational Co ltd
Current assignee: Ningbo Huamao Cultural Educational Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-30
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a digital timer, which comprises a housin, the front end of casing passes through screw fixedly connected with protecgulum, all be provided with first charactron and second charactron in first display block and the second display block, the bottom of the adjacent first display block in lower part of protecgulum is provided with first reading key and the first key that resets, the top of two photoelectric door all is provided with photoelectric sensor. The utility model discloses in, gather through photoelectric sensing, first charactron can the automatic display object time of being in the light, the second charactron can show the group of corresponding object and distinguish, through pressing first reading key and second reading key, first charactron repeated display time of being in the light, do not need artifical record object time of being in the light, and first charactron and second charactron all are provided with two, every first charactron and second charactron can all record nine groups of numbers, can record more data, be worth wideling popularize.

Description

Digital timer

Technical Field

The utility model relates to a teaching experiment equipment technical field especially relates to digital timer.

Background

The physical experiment is related experiments contained in the physical courses in the beginning, the middle and the high school, comprises an electrical experiment, a mechanical experiment, a thermal experiment, an optical experiment and the like, and is commonly used for verifying the theorem law of the physical discipline.

In the mechanics experiment, when measuring the used time of object motion, many teachers all use stopwatch or cell-phone meter manual timing, lead to the experimental result inaccurate, need many people to operate when carrying out the multiunit experiment simultaneously moreover, it is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a digital timer.

In order to achieve the above purpose, the utility model adopts the following technical scheme: digital timer, which comprises a housin, the front end of casing passes through screw fixedly connected with protecgulum, the first display block of upper portion one side fixedly connected with of protecgulum, the upper portion opposite side fixedly connected with second display block of protecgulum, all be provided with first charactron and second charactron in first display block and the second display block, the bottom of the adjacent first display block in lower part of protecgulum is provided with first reading key and first reset key, the bottom of the adjacent second display block in lower part of protecgulum is provided with second reading key and second reset key, the lower part both ends of protecgulum all are provided with the jack, the inside of two jacks all has the wire through plug electric connection, the equal fixedly connected with photogate in one end of two wires, the top of two photogates all is provided with photoelectric sensor.

As a further description of the above technical solution: the photoelectric sensor is electrically connected with the lead.

As a further description of the above technical solution: the length of the first nixie tube is four times that of the second nixie tube.

As a further description of the above technical solution: the rear end of the housing is provided with a DC socket.

As a further description of the above technical solution: the shell is made of aluminum alloy.

As a further description of the above technical solution: the inside of casing is provided with the circuit board.

As a further description of the above technical solution: the first nixie tube and the second nixie tube in the first display block are electrically connected with a first reading key and a first reset key.

As a further description of the above technical solution: the first nixie tube and the second nixie tube in the second display block are both electrically connected with a second reading key and a second reset key.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first through pressing first reset key and second reset key, make first charactron and second charactron in first display piece and the second display piece all be in the state of setting zero, at this moment, photoelectric sensor in two photoelectric gates all gets into the collection state, first charactron can the automatic time that the demonstration object is in the light, the second charactron can show the group of corresponding object and distinguish, through pressing first reading key and second reading key, first charactron repeated display time that is in the light, the second charactron shows corresponding group and distinguishes, do not need artifical record object time that is in the light, the experimental data of record is more accurate.

2. The utility model discloses in, be provided with first display block and second display block with the upper portion of protecgulum, the top of two photoelectric door all is provided with photoelectric sensor, can form the contrast group to first charactron and second charactron all are provided with two, and nine groups of numbers can all be taken notes to every first charactron and second charactron, can take notes eighteen group data altogether, do not need many people to operate just can conveniently to take notes more data, are worth wideling popularize.

Drawings

Fig. 1 is a schematic perspective view of a digital timepiece according to the present invention;

fig. 2 is a schematic front view of the front cover of the digital timer according to the present invention;

fig. 3 is a schematic structural diagram of the photoelectric door of the digital timer according to the present invention.

Illustration of the drawings:

1. a housing; 2. a front cover; 3. a photogate; 4. a first display block; 5. a second display block; 6. a wire; 7. a second read key; 8. a second reset key; 9. a first reading key; 10. a first reset key; 11. a first nixie tube; 12. a second digital tube; 13. a screw; 14. a jack; 15. a photosensor; 16. and (4) a plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the digital timer comprises a shell 1, wherein the front end of the shell 1 is fixedly connected with a front cover 2 through a screw 13, one side of the upper part of the front cover 2 is fixedly connected with a first display block 4, the other side of the upper part of the front cover 2 is fixedly connected with a second display block 5, a first nixie tube 11 and a second nixie tube 12 are respectively arranged in the first display block 4 and the second display block 5, the second nixie tube 12 can display the digits, namely the Arabic numerals from 0 to 9, so that nine groups of objects can be conveniently recorded, the first nixie tube 11 can display the four digits and conveniently display time, the first nixie tube 11 can correspondingly display the light blocking time and the group number of each group of objects with the second nixie tube 12, a first reading key 9 and a first reset key 10 are arranged at the lower part of the front cover 2 adjacent to the bottom of the first display block 4, a second reading key 7 and a second reset key 8 are arranged at the lower part of the front cover 2 adjacent to the bottom of the second display block 5, through pressing first reset key 10 and second reset key 8, two first charactron 11 and two second charactron 12 are all in the state of setting zero, all show digit "0", through pressing first reading key 9 and second reading key 7, two first charactron 11 all can repeated demonstration object time of being in the light, two second charactron 12 all show every group that the time of being in the light corresponds, the lower part both ends of protecgulum 2 all are provided with jack 14, the inside of two jack 14 all has wire 6 through plug 16 electric connection, the equal fixedly connected with photogate 3 of one end of two wire 6, the top of two photogate 3 all is provided with photoelectric sensor 15, conveniently record the object time of being in the light.

The photoelectric sensor 15 is electrically connected with the lead 6, which is convenient for signal transmission, the length of the first nixie tube 11 is four times of that of the second nixie tube 12, the second nixie tube 12 can display a first digit, the first nixie tube 11 can display a fourth digit, the rear end of the shell 1 is provided with a DC socket, a DC12V2A power adapter is adopted for power supply, the shell 1 is made of aluminum alloy, a circuit board is arranged inside the shell 1, a matched power adapter is used for preventing the circuit board from being burnt out or the shell cannot normally work, the first nixie tube 11 and the second nixie tube 12 in the first display block 4 are both electrically connected with a first reading key 9 and a first reset key 10, the first reading key 9 and the first reset key 10 can control the first nixie tube 11 and the second nixie tube 12 in the first display block 4, the first nixie tube 11 and the second nixie tube 12 in the second display block 5 are both electrically connected with a second reading key 7 and a second reset key 8, the second reading key 7 and the second reset key 8 can control a first nixie tube 11 and a second nixie tube 12 in the second display block 5.

The working principle is as follows: the first display block 4 and the second display block 5 are fixedly connected with the upper part of the front cover 2, the first nixie tube 11 and the second nixie tube 12 in the first display block 4 and the second display block 5 are both in a zero setting state by pressing the first reset key 10 and the second reset key 8, at the moment, the photoelectric sensors 15 in the two photoelectric doors 3 are both in a collecting state, the two first nixie tubes 11 can automatically display the light blocking time of an object, the two second nixie tubes 12 can display the group of the corresponding object, the two first nixie tubes 11 can repeatedly display the light blocking time of the object by pressing the first reading key 9 and the second reading key 7, the two second nixie tubes 12 display the corresponding group, the light blocking time of the object does not need to be manually recorded, the experimental data can be accurately recorded conveniently, the first display block 4, the second display block 5 and the two photoelectric sensors 15 can form a comparison group, and first charactron 11 can record nine groups of time, and second charactron 12 can correspond nine groups of demonstration, and first charactron 11 and second charactron 12 all are provided with two, can record the data of more multiunit objects, do not need many people to operate.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Digital timepiece comprising a casing (1), characterized in that: the front end of the shell (1) is fixedly connected with a front cover (2) through a screw (13), one side of the upper portion of the front cover (2) is fixedly connected with a first display block (4), the other side of the upper portion of the front cover (2) is fixedly connected with a second display block (5), a first nixie tube (11) and a second nixie tube (12) are arranged in the first display block (4) and the second display block (5), a first reading key (9) and a first reset key (10) are arranged at the bottom of the lower portion of the front cover (2) adjacent to the first display block (4), a second reading key (7) and a second reset key (8) are arranged at the bottom of the lower portion of the front cover (2) adjacent to the second display block (5), jacks (14) are arranged at the two ends of the lower portion of the front cover (2), and wires (6) are electrically connected with the interiors of the two jacks (14) through a plug (16), one ends of the two conducting wires (6) are fixedly connected with photoelectric doors (3), and photoelectric sensors (15) are arranged at the tops of the two photoelectric doors (3).

2. The digital timepiece according to claim 1, wherein: the photoelectric sensor (15) is electrically connected with the lead (6).

3. The digital timepiece according to claim 1, wherein: the length of the first nixie tube (11) is four times that of the second nixie tube (12).

4. The digital timepiece according to claim 1, wherein: the rear end of the shell (1) is provided with a DC socket.

5. The digital timepiece according to claim 1, wherein: the shell (1) is made of aluminum alloy.

6. The digital timepiece according to claim 1, wherein: the inside of casing (1) is provided with the circuit board.

7. The digital timepiece according to claim 1, wherein: the first nixie tube (11) and the second nixie tube (12) in the first display block (4) are both electrically connected with a first reading key (9) and a first reset key (10).

8. The digital timepiece according to claim 1, wherein: and the first nixie tube (11) and the second nixie tube (12) in the second display block (5) are both electrically connected with a second reading key (7) and a second reset key (8).