CN104258556A - Sit-up exercise counting circuit - Google Patents
Sit-up exercise counting circuit Download PDFInfo
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- CN104258556A CN104258556A CN201410581549.4A CN201410581549A CN104258556A CN 104258556 A CN104258556 A CN 104258556A CN 201410581549 A CN201410581549 A CN 201410581549A CN 104258556 A CN104258556 A CN 104258556A
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- counter
- pin
- sit
- counting circuit
- upper cover
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Abstract
The invention discloses a sit-up exercise counting circuit. The sit-up exercise counting circuit comprises a first counter and a second counter, wherein a Q3 pin of the first counter is connected with a CP1 pin of the second counter; a CP1 pin of the first counter is sequentially connected in series with a counting trigger switch and a power supply; the counting trigger switch comprises an elastic rubber tube; the upper end of the elastic rubber tube is connected with an upper sealing head, and the lower end of the elastic rubber tube is connected with a lower sealing tube filled with a lower sealing head at the inner diameter; the surface, facing the upper sealing head, of the lower sealing head is connected with a conductive base; the surface, facing the upper sealing head, of the conductive base is connected with a guide tube; the surface, facing the lower sealing head, of the upper sealing head is connected with a sealing head protrusion block; the sealing head protrusion block is connected with a conductive rod extending into the guide tube; the conductive rod is connected with the power supply through a wire; the conductive base is connected with the CP1 pin of the first counter through a wire. The testing time of a sit-up exercise can be shortened.
Description
Technical field
The present invention relates to teaching equipment, specifically sit-up movement counting circuit.
Background technology
In physical education, particularly in fitness test, often existing means of testing is all very backward, test with sit-up movement, need tested personnel in official hour, complete multiple sit-up movement, and the means of test severally to be measured by artificial, the efficiency of its test is very low, with 50 people class, the mode of artificial counting is adopted to carry out, so everyone will spend the testing time of 3 minutes, at this moment tester need one by one to each personnel carry out counting test, the needs time of 150 minutes after whole test completes, therefore testing efficiency is very low, in order to complete counting fast, a lot of games master all adopt allow student supervise mutually counting mode, but this counting means can cause student to shield each other, thus the student making some quality not up to standard also can smoothly by test, the result of therefore testing is untrustworthy.
Summary of the invention
The object of the present invention is to provide a kind of sit-up movement counting circuit of simple, low cost, can the testing time be reduced, reach the object of test fast.
Object of the present invention is achieved through the following technical solutions: sit-up movement counting circuit, comprise the first counter and the second counter, the Q0 pin of the first counter, Q1 pin, Q2 pin, Q3 pin is all connected with a position display tube, the Q0 pin of the second counter, Q1 pin, Q2 pin, Q3 pin is all connected with ten display tubes, the CP0 pin of the first counter is connected with the Q0 pin of the first counter, the CP0 pin of the second counter is connected with the Q0 pin of the second counter, the Q3 pin of the first counter is connected with the CP1 pin of the second counter, the CP1 pin of the first counter is in series with counting trigger switch successively, power supply, counting trigger switch comprises elastic rubber pipe, elastic rubber pipe upper end is connected with upper cover, elastic rubber pipe lower end is connected with lower tube sealing, lower tube sealing internal diameter is filled with low head, low head is connected with conductive seat towards the one side of upper cover, conductive seat is connected with guide pipe towards the one side of upper cover, the face down one side of end socket of upper cover is connected with end socket casting lug thereon, end socket casting lug thereon is connected with the contact rod extending to guide pipe inside, contact rod is connected with power supply by a wire, and conductive seat is connected with the CP1 pin of the first counter by a wire.
According to said structure, multiple counting trigger switch is fixed on a plate body by we, then testee lies on the back in FX, when doing sit-up movement, the necessary head impact of testee is to upper cover, upper cover moves downward, elastic rubber pipe is out of shape, contact rod then moves downward along guide pipe, after contact rod touches conductive seat, counting trigger switch then completes closed action, form conducting state, then foregoing circuit is switched on, the CP1 pin of the first counter now receives high level, first counter completes and once counts, after the first counter completes 9 countings, the high level signal that the Q3 pin of the first counter sends, second counter starts counting, so can form the process of metric counting.When the head of testee does not contact with upper cover, then under the elastic reaction of elastic rubber pipe, counting trigger switch completes reset.Multiple said apparatus can be set like this, all tested personnel be tested, reliable test result simultaneously.
Be filled with compressed air in described elastic rubber pipe, be conducive to counting trigger switch and reset.
In order to make head touch without hard object sense, upper cover is connected with by gland away from the side of low head, and pressurized can take soft material to make.
Preferably, upper cover, end socket casting lug thereon, lower tube sealing are elastic caoutchouc body structure.
Preferably, the first counter and the second counter all adopt model to be the counter of 74LS290.
Preferably, guide pipe is earthenware.
Preferably, conductive seat possesses excrescence, and excrescence is inserted in lower tube sealing wall body from one end away from elastic rubber pipe of lower tube sealing.
The invention has the advantages that: the present invention is that a kind of structure is simple, the sit-up movement counting circuit of low cost, can reduce the time of test sit-up movement.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Structure chart when Fig. 2 is counting trigger switch not conducting.
Structure chart when Fig. 3 is counting trigger switch conducting.
Reference numeral in figure is expressed as: 1, by gland; 21, upper cover; 22, end socket casting lug thereon; 23, elastic rubber pipe; 24, lower tube sealing; 25, low head; 26, contact rod; 27, guide pipe; 28, conductive seat.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As shown in Figure 1-Figure 3.
Sit-up movement counting circuit, comprise the first counter IC1 and the second counter IC2, the Q0 pin of the first counter IC1, Q1 pin, Q2 pin, Q3 pin is all connected with a position display tube P1, the Q0 pin of the second counter IC1, Q1 pin, Q2 pin, Q3 pin is all connected with ten display tube P2, the CP0 pin of the first counter IC1 is connected with the Q0 pin of the first counter IC1, the CP0 pin of the second counter IC1 is connected with the Q0 pin of the second counter IC1, the Q3 pin of the first counter IC1 is connected with the CP1 pin of the second counter IC1, the CP1 pin of the first counter IC1 is in series with counting trigger switch J1 successively, power supply VCC, counting trigger switch J1 comprises elastic rubber pipe 23, elastic rubber pipe 23 upper end is connected with upper cover 21, elastic rubber pipe 23 lower end is connected with lower tube sealing 24, lower tube sealing 24 internal diameter is filled with low head 25, low head 25 is connected with conductive seat 28 towards the one side of upper cover 21, conductive seat 28 is connected with guide pipe 27 towards the one side of upper cover 21, the face down one side of end socket 25 of upper cover 21 is connected with end socket casting lug thereon 22, end socket casting lug thereon 22 is connected with the contact rod 26 extending to guide pipe 27 inside, contact rod 26 is connected with power supply VCC by a wire, conductive seat 28 is connected with the CP1 pin of the first counter IC1 by a wire.
According to said structure, multiple counting trigger switch J1 is fixed on a plate body by we, then testee lies on the back in FX, when doing sit-up movement, the necessary head impact of testee is to upper cover 21, upper cover 21 moves downward, elastic rubber pipe 23 is out of shape, contact rod 26 moves downward along guide pipe 27, after contact rod 26 touches conductive seat 28, counting trigger switch then completes closed action, form conducting state, then foregoing circuit is switched on, the CP1 pin of the first counter IC1 now receives high level, first counter IC1 completes and once counts, after the first counter IC1 completes 9 countings, the high level signal that the Q3 pin of the first counter IC1 sends, second counter IC1 starts counting, so can form the process of metric counting.When the head of testee does not contact with upper cover 21, then under the elastic reaction of elastic rubber pipe 23, counting trigger switch completes reset.Multiple said apparatus can be set like this, all tested personnel be tested, reliable test result simultaneously.
Be filled with compressed air in described elastic rubber pipe, be conducive to counting trigger switch and reset.
In order to make head touch without hard object sense, upper cover is connected with by gland 1 away from the side of low head, soft material can be taked to make by gland 1.
Preferably, upper cover, end socket casting lug thereon, lower tube sealing are elastic caoutchouc body structure.
Preferably, the first counter IC1 and the second counter IC2 adopts model to be the counter of 74LS290.
Preferably, guide pipe is earthenware.
Preferably, conductive seat possesses excrescence, and excrescence is inserted in lower tube sealing 24 wall body from one end away from elastic rubber pipe of lower tube sealing 24.
As mentioned above, then well the present invention can be realized.
Claims (7)
1. sit-up movement counting circuit, it is characterized in that: comprise the first counter (IC1) and the second counter (IC2), the Q0 pin of the first counter (IC1), Q1 pin, Q2 pin, Q3 pin is all connected with position display tube (P1), the Q0 pin of the second counter (IC1), Q1 pin, Q2 pin, Q3 pin is all connected with ten display tubes (P2), the CP0 pin of the first counter (IC1) is connected with the Q0 pin of the first counter (IC1), the CP0 pin of the second counter (IC1) is connected with the Q0 pin of the second counter (IC1), the Q3 pin of the first counter (IC1) is connected with the CP1 pin of the second counter (IC1), the CP1 pin of the first counter (IC1) is in series with counting trigger switch (J1) successively, power supply (VCC), counting trigger switch (J1) comprises elastic rubber pipe (23), elastic rubber pipe (23) upper end is connected with upper cover (21), elastic rubber pipe (23) lower end is connected with lower tube sealing (24), lower tube sealing (24) internal diameter is filled with low head (25), low head (25) is connected with conductive seat (28) towards the one side of upper cover (21), conductive seat (28) is connected with guide pipe (27) towards the one side of upper cover (21), the face down one side of end socket (25) of upper cover (21) is connected with end socket casting lug thereon (22), end socket casting lug thereon (22) is connected with and extends to the inner contact rod (26) of guide pipe (27), contact rod (26) is connected with power supply (VCC) by a wire, conductive seat (28) is connected by the CP1 pin of a wire with the first counter (IC1).
2. sit-up movement counting circuit according to claim 1, is characterized in that: be filled with compressed air in described elastic rubber pipe.
3. sit-up movement counting circuit according to claim 1, is characterized in that: upper cover is connected with by gland (1) away from the side of low head.
4. sit-up movement counting circuit according to claim 1, is characterized in that: upper cover, end socket casting lug thereon, lower tube sealing are elastic caoutchouc body structure.
5. sit-up movement counting circuit according to claim 1, is characterized in that: the first counter (IC1) and the second counter (IC2) all adopt model to be the counter of 74LS290.
6. sit-up movement counting circuit according to claim 1, is characterized in that: guide pipe is earthenware.
7. sit-up movement counting circuit according to claim 1, is characterized in that: conductive seat possesses excrescence, and excrescence is inserted in lower tube sealing (24) wall body from one end away from elastic rubber pipe of lower tube sealing (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581549.4A CN104258556A (en) | 2014-10-27 | 2014-10-27 | Sit-up exercise counting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581549.4A CN104258556A (en) | 2014-10-27 | 2014-10-27 | Sit-up exercise counting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104258556A true CN104258556A (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581549.4A Pending CN104258556A (en) | 2014-10-27 | 2014-10-27 | Sit-up exercise counting circuit |
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| CN (1) | CN104258556A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2245472Y (en) * | 1995-07-28 | 1997-01-22 | 李文义 | Automatic test instrument for doing sit-ups |
| US5605336A (en) * | 1995-06-06 | 1997-02-25 | Gaoiran; Albert A. | Devices and methods for evaluating athletic performance |
| CN1738207A (en) * | 2005-07-06 | 2006-02-22 | 河北师范大学 | Asynchronous decade counter IC |
| US20140100083A1 (en) * | 2010-08-03 | 2014-04-10 | Dak Brandon Steiert | Exercise machine for muscle speed and explosiveness |
| CN204159010U (en) * | 2014-10-27 | 2015-02-18 | 成都锐奕信息技术有限公司 | Physical education counting device |
-
2014
- 2014-10-27 CN CN201410581549.4A patent/CN104258556A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605336A (en) * | 1995-06-06 | 1997-02-25 | Gaoiran; Albert A. | Devices and methods for evaluating athletic performance |
| CN2245472Y (en) * | 1995-07-28 | 1997-01-22 | 李文义 | Automatic test instrument for doing sit-ups |
| CN1738207A (en) * | 2005-07-06 | 2006-02-22 | 河北师范大学 | Asynchronous decade counter IC |
| US20140100083A1 (en) * | 2010-08-03 | 2014-04-10 | Dak Brandon Steiert | Exercise machine for muscle speed and explosiveness |
| CN204159010U (en) * | 2014-10-27 | 2015-02-18 | 成都锐奕信息技术有限公司 | Physical education counting device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |