CN2843773Y - The multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device - Google Patents
The multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device Download PDFInfo
- Publication number
- CN2843773Y CN2843773Y CN 200520088024 CN200520088024U CN2843773Y CN 2843773 Y CN2843773 Y CN 2843773Y CN 200520088024 CN200520088024 CN 200520088024 CN 200520088024 U CN200520088024 U CN 200520088024U CN 2843773 Y CN2843773 Y CN 2843773Y
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- circuit
- light emitting
- emitting diode
- pulse generating
- predetermined torque
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Abstract
The multistage predetermined torque LED of a kind of electronic wrest fixing spanner panel shows and setting device, mainly solves its designs simplification and integrity problem.It comprises power supply, pulse generating circuit, counting circuit, decoding circuit and display circuit, and described pulse generating circuit is made up of button, pull-up resistor and electrochemical capacitor; Counting circuit comprises counter, trigger; Be connected to the trigger that paired pulses carries out shaping between the counter of pulse generating circuit and counting circuit, the output data line of counter connects to form the decoder input data line of decoding circuit, the corresponding output of decoder all connects a light emitting diode, forms display circuit by the current-limiting resistance of light emitting diode and serial connection.This device by control light emitting diode (LED) bright, go out and indicate corresponding predetermined torque, finish the default of moment of torsion by a button, simple in structure, system reliability height, low cost of manufacture.Be applied to electronic wrest fixing spanner.
Description
Technical field:
The utility model relates to a kind of demonstration and setting device of electronic constant torque wrench, specifically is that the multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device.
Background technology:
At present, domestic electronic wrest fixing spanner moment of torsion shows main multidigit nixie tube or liquid crystal (LCD) display mode of adopting, can intuitively show the spanner torque value, but this mode must be equipped with and show after the control corresponding unit is gathered and handled torque signal, make the The whole control system complex structure, increased the reliability that manufacturing cost has reduced whole electric wrench simultaneously.
Summary of the invention:
In order to guarantee the structure aspect the demonstration of simplification moment of torsion under the electronic wrest fixing spanner serviceability prerequisite, the utility model provides the multistage predetermined torque LED of a kind of electronic wrest fixing spanner panel to show and setting device, so that circuit structure is simple, improves the reliability of system.
The technical solution of the utility model is:
The multistage predetermined torque LED of this electronic wrest fixing spanner panel shows and setting device, it is characterized in that: comprise power supply, pulse generating circuit, counting circuit, decoding circuit and display circuit, described pulse generating circuit is made up of button, pull-up resistor and electrochemical capacitor; Counting circuit comprises counter, trigger; Be connected to the trigger that paired pulses carries out shaping between the counter of pulse generating circuit and counting circuit, the output data line of counter connects to form the decoder input data line of decoding circuit, the corresponding output of decoder all connects a light emitting diode, forms display circuit by the current-limiting resistance of light emitting diode and serial connection.
Corresponding each light emitting diode is provided with moment of torsion signs at different levels on the described display floater, and the button in the pulse generating circuit is provided with on the display floater.Corresponding relation between concrete each light emitting diode and the moment of torsion sign, and the setting of key position is decided as the case may be.
During use, produce pulse by button, pulse enters rolling counters forward through after the shaping, and decoder makes this light emitting diode bright according to the corresponding light emitting diode of count value gating, with the corresponding indication of the sign on panel predetermined torque rank.This device by control light emitting diode (LED) bright, go out and indicate corresponding predetermined torque, finish the default of moment of torsion by a button.
The beneficial effects of the utility model are: control circuit is simple in structure, has improved system reliability, and required components and parts are few and all be that device price commonly used is all lower, has reduced manufacturing cost.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is the schematic diagram of the utility model display floater.
The specific embodiment:
As can be seen from Figure 1, this embodiment is the indications of 4 grades of predetermined torques, and wherein 3 grades for just changeing the predetermined torque indication, indicates for counter-rotating for 1 grade in addition.
Pull-up resistor R1, button S1, electrochemical capacitor C1 forms pulse generating circuit, whenever click button S1 (SET) and produce a pulse, pulse is through twice shaping of Schmidt trigger 74LS14, carry out cycle count by the pulse of counter 74LS160 after to shaping, count 4 numbers with regard to zero clearing, counter output two paths of data line is as the input data line of 3-8 decoder 74ALS138,3-8 decoder 74ALS138 is according to the passage of rolling counters forward numerical value gating correspondence, the S1 that for example do not push button at the beginning, rolling counters forward is 0, the input data line AB of 3-8 decoder 74ALS138 is 00, gating Y0 passage then, light emitting diode D1 is bright, 1 grade shown in corresponding diagram 2 panels, all the other not the light emitting diode of gating do not work, when clicking button S1, rolling counters forward is 1, gating Y1 passage, and light emitting diode D2 is bright, shown in corresponding diagram 2 panels 2 grades, continue then D3 of button S1, D4 will show the score successively and not indicate 3 grades and counter-rotating, be cleared by button S1 counter and return original state, and D1 is bright.Present embodiment has used 2 circuit-switched data lines, can realize that 2 select 4 operations, can expand to 3 easily and select 8 modes under the situation that need not increase other chip, thereby realize 8 grades of predetermined torque indications.
Claims (2)
1, the multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device, it is characterized in that: comprise power supply, pulse generating circuit, counting circuit, decoding circuit and display circuit, described pulse generating circuit is by button, pull-up resistor and electrochemical capacitor are formed, counting circuit comprises counter, trigger, be connected to the trigger that paired pulses carries out shaping between the counter of pulse generating circuit and counting circuit, the output data line of counter connects to form the input data line of the decoder of decoding circuit, the corresponding output of decoder all connects a light emitting diode, and the current-limiting resistance of light emitting diode and serial connection is formed display circuit.
2, the multistage predetermined torque LED of electronic wrest fixing spanner according to claim 1 panel shows and setting device, it is characterized in that: corresponding each light emitting diode is provided with moment of torsion signs at different levels on the described display floater, and the button in the pulse generating circuit is arranged on the display floater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520088024 CN2843773Y (en) | 2005-10-24 | 2005-10-24 | The multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520088024 CN2843773Y (en) | 2005-10-24 | 2005-10-24 | The multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2843773Y true CN2843773Y (en) | 2006-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520088024 Expired - Fee Related CN2843773Y (en) | 2005-10-24 | 2005-10-24 | The multistage predetermined torque LED of electronic wrest fixing spanner panel shows and setting device |
Country Status (1)
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| CN (1) | CN2843773Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803722A (en) * | 2018-07-27 | 2018-11-13 | 无锡凯夫制药有限公司 | A kind of bottle washing machine multichannel water temperature control device for adenosine cyclophosphate preparation |
-
2005
- 2005-10-24 CN CN 200520088024 patent/CN2843773Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803722A (en) * | 2018-07-27 | 2018-11-13 | 无锡凯夫制药有限公司 | A kind of bottle washing machine multichannel water temperature control device for adenosine cyclophosphate preparation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN TONGLIDA TRAIN EQUIPMENT FACTORY Free format text: FORMER OWNER: TONGLIDA ELECTRIC MACHINERY APPARATUS CO., LTD., SHANDONG Effective date: 20070105 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070105 Address after: Huai Village Street Huaiyin District of Ji'nan city in Shandong province 250022 No. 73 (Ji'nan Tonglida locomotive vehicle tool factory) Patentee after: Jinan Tonglida Locomotive Vehicle Tool Plant Address before: Room B-202 No. 750 University Science and Technology Park Xinyu Road, Ji'nan hi tech Development Zone of Shandong province 250101 Patentee before: Tonglida Electric Machinery Apparatus Co., Ltd., Shandong |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG TONGLIDA INTELLIGENT MACHINERY CO., LTD. Free format text: FORMER OWNER: JINAN TONGLIDA TRAIN EQUIPMENT FACTORY Effective date: 20071228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071228 Address after: Ash Street Huaiyin District of Ji'nan City, Shandong Province, No. 73, zip code: 250022 Patentee after: Shandong Tonglida Intelligent Machinery Co., Ltd. Address before: Ash Street Huaiyin District of Ji'nan City, Shandong Province, No. 73 (Ji'nan Tonglida locomotive vehicle tool factory), zip code: 250022 Patentee before: Jinan Tonglida Locomotive Vehicle Tool Plant |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061206 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |