WO2002100307A1

WO2002100307A1 - A simple delay alarm

Info

Publication number: WO2002100307A1
Application number: PCT/CN2002/000362
Authority: WO
Inventors: Hurong Zheng
Original assignee: Hurong Zheng
Priority date: 2001-06-08
Filing date: 2002-05-29
Publication date: 2002-12-19
Also published as: CN2493985Y

Abstract

The invention relates to a simple delay alarm, comprising a body, a hook, a battery, a power switch, a printed circuit board, a sound IC, an angle displacement switch and a speaker, and there is an electrode at one side of the pendulum of angle displacement switch, and a reset electrode at the other side, the trigger of sound IC is connected to a delay circuit including a capacitor. The invention uses a general capacitor which can be charged and discharged, and makes alarm through the charging and discharging of the capacitor, and it can avoid the wrong alarm, and be used by various users in various circumstances, and make sure the best effect to prevent the short sight and crookback.

Description

Simple delay reminder

The utility model relates to a sitting posture correcting device, in particular to an easy-to-delay reminder.

Background technique

The angle sensor of the seat corrector that has been disclosed generally uses a mercury sensor, such as 93147912.X and 93202588. 9 patent disclosure. Another type is a metal pendulum angular displacement switch, as disclosed in Patent No. 002151316. The former is heavily polluted after a few years due to the use of water. If the latter does not pollute the environment, the seat has a large opening at the handle rotation due to the correction of the sitting position, which affects the appearance and is easy to enter foreign objects to stabilize the angular displacement switch. Poor, reminder sound is not adjustable. The above reminder also has a major disadvantage: because it is inevitable to use the reminder to suddenly turn back, stand up, and tilt the head forward and pan, the mercury or pendulum that acts as a conductive medium at this time is useless due to its inertia to close the switch. Reminder, causing noise to upset users.

Summary of the Invention

The purpose of the present utility model is to solve the above-mentioned problem, and provide a reminder capable of realizing a delay after a period of time after the angular shift switch is triggered, and then alarming, and the reminder is low in cost.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: A simple time-delay reminder includes a housing, an ear hook, a battery, a power switch, an angular displacement switch, a printed circuit board, a simple sounding IC, a sounder, and the above-mentioned angular displacement. An electrode is arranged on one side of the swing body of the switch, and the other A reset electrode is provided on the side; the reminder includes a delay circuit, and the trigger terminal of the simple-occurring IC is connected to one end of a charge and discharge capacitor in the delay circuit.

The above delay circuit may have the following structure: The trigger terminal of the simple-sounding IC is connected to the negative electrode of the battery through a capacitor (C), the trigger of the simple-sounding IC is also connected to the swing axis through a resistor (R), and the electrode is connected to the positive electrode of the battery through a power switch. The reset electrode is connected to the negative terminal of the battery.

The above delay circuit may also have the following structure: The trigger of the simple-sounding IC is connected to the negative electrode of the battery through the capacitor (C), the trigger terminal of the simple-sounding IC is also connected to the swing shaft through the resistor (R), and the reset electrode is connected to the battery through the power switch. The positive electrode is connected to the negative electrode of the battery.

The housing is provided with a shaft seat; the angular displacement switch includes a pendulum body, a pendulum shaft, an angular displacement setting frame, an electrode, and a reset electrode, wherein the angular displacement setting frame and the pendulum body are hinged by a pendulum shaft, and the angle The displacement setting frame is also mounted on the shaft seat of the housing through the two ends of the swing shaft.

A volume adjustment hole is provided on the casing, and a volume adjustment switch or a variable resistor is provided at a position corresponding to the volume adjustment hole inside the casing.

A handle for adjusting the angle is provided on the outside of the angular displacement setting frame; the handle protrudes out of the case through a side opening of the housing; and there are scales on both sides of the outside opening of the housing.

A plurality of grooves are provided on the inner wall of the side opening, and these grooves are all on the arc centered on the swing axis, and a protrusion is provided at a corresponding position on the handle, and the protrusion matches the size and shape of the groove.

In the electrode, the reset electrode is a spring card type or conductive rod type electrode arranged on an angular displacement setting frame. An arc plate is set between the handle and the angular displacement setting frame.

The advantages and positive effects of the utility model are that it does not use mercury angular displacement switches and does not pollute the environment; ； using ordinary capacitors and resistors to realize delayed reminders by charging or discharging capacitors, which can reduce product costs; short Time bent over, bowed down or turned back suddenly, stood up, and the head was panned instantaneously. The capacitor voltage could not be triggered because the capacitor voltage did not reach the trigger voltage. As long as the sitting posture was correct and the body was in contact with the reset electrode, the original state of charging or discharging the capacitor returned. In the original state, this removes most of the useless reminders; the position of the angular displacement switch can be adjusted to achieve alarm reminders at different tilt angles; the setting of an arc-shaped plate can prevent foreign objects from entering the reminder, avoiding affecting the normal work of the reminder And the appearance is beautiful; set the volume adjustment device, according to the basic noise level in the classroom, you can adjust the volume of the reminder so that you can hear clearly without affecting the students before and after, and maintain a good reminder effect at home.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described in detail below with reference to the drawings.

FIG. 1 is a schematic sectional structural diagram of the present invention;

2 is a top view of a handle and an angular displacement setting frame;

3 is a schematic cross-sectional structure view of FIG. 1;

Figure 4 is a side view of the utility model;

5 is a circuit diagram of a volume adjustment switch provided in the present invention;

FIG. 6 is a circuit diagram of a variable resistor for adjusting the volume of the present invention;

7 is a schematic circuit diagram of Embodiment 1;

8 is a schematic circuit diagram of the second embodiment; FIG. 9 is a schematic structural diagram of an angular displacement switch.

detailed description

Embodiment one:

As shown in FIG. 1, this embodiment has a casing 1 and an ear hook 2. The lower part of the housing 1 is equipped with an angular displacement switch 23, the upper part is equipped with a battery 3, a power switch 4, a volume adjustment switch 13, a printed circuit board 16, a simple sounding IC 15 and a sounder 19.

As shown in FIG. 9, the angular displacement switch 23 has an angular displacement setting frame 10 and a pendulum body 8, a pendulum shaft 5 and an electrode 9, and a reset electrode 14 is also contacted at the normal position of the pendulum body 8.

As shown in FIG. 7, the simple sounding IC 15 is an integrated block triggered by a high potential, and the delay circuit 25 of the capacitor C is set. The delay circuit 25 is that the trigger terminal of the pure-sounding IC15 is connected to the negative electrode of the battery 3 through the capacitor C, the trigger terminal of the simple-sounding IC15 is also connected to the swing shaft 5 through the resistor R, and the electrode 9 is connected to the positive electrode of the battery 3 through the power switch 4. The reset electrode 14 is connected to the negative electrode of the battery 3.

The angular displacement switch 23 is normally connected to the swing body 8 and the reset electrode 14 to discharge the capacitor. When the angular displacement switch 23 contacts the electrode 9 due to the abnormal posture of the user, the capacitor is charged, and when the capacitor is charged, it simply sounds The IC 15 starts, and the sounder 19 connected to the integrated block makes a sound.

As shown in FIGS. 2 and 3, the angular displacement switch 23 has an angular displacement setting frame 10 and a swing body 8. Instead of the conductive rod in the application of 00 ² 1 ⁵ 131.6, a spring card electrode 9 is provided on the angular displacement setting frame 10, which has a larger welding area and is easier to assemble. The pendulum body 8 can rotate around the pendulum axis 5 and it is often in a vertical state due to gravity. The pendulum shaft 5 is inserted into the angular displacement setting frame 10 and can rotate around the pendulum shaft 5. The rotation angle can be fixed at the angular displacement. The handle 6 on the setting frame 10 is used for control. When assembling, insert the 5 end of the swing shaft into the angular displacement setting frame and the swing body 8, and insert the 5 end of the swing shaft into the shaft seat 20 of the housing 1, and then insert the other end of the swing shaft 5 into the housing 1 Half of the axle seat 20 is on. The handle 6 protrudes out of the shell through a side opening of the housing 1, and a plurality of grooves 11 are formed on an inner wall of the side opening 7, and the grooves 11 are all on an arc centered on the swing axis 5.

As shown in Figs. 1 and 4, scales 22 are provided on both sides of the outer opening 7 of the housing 1. External dust and foreign objects can easily enter the reminder from the side opening 7 to make the swing shaft 5 and the swing body 8 work ineffective or unstable. For this reason, the position close to the side opening 7 is set on the angular displacement setting frame 10了防异物圆形板 12。 Blocked foreign object arc-shaped plate 12. A protrusion 17 is provided at a corresponding position on the handle 6, and the protrusion 17 is matched with the size and shape of the above-mentioned groove 11. The protrusion 17 can be snapped into the groove 11. In this way, the handle 6 can drive the angular displacement setting frame 10 to rotate, and the rotation angle is determined by the handle 6 and the scale 22. Therefore, the relative position between the charged pendulum body 8 and the spring card electrode 9 can be adjusted by pulling the handle 6 to adjust the triggering angle of the alarm. The scale 22 enables the angular displacement setting frame 10 to be positioned more accurately.

As shown in FIG. 5 and FIG. 6, in order to make the reminder emit different volumes to adapt to different places and different hearing users, a volume adjustment hole 21 is opened in the housing 1, and a corresponding position of the volume adjustment hole is provided. Adjust the volume switch 13 to adjust the volume of the reminder.

The volume adjustment switch 13 in this embodiment can also be changed to a variable resistor. The circuit is shown in FIG. 6, where the variable resistor RP is connected between the simple sounding IC and the sounder 19. Embodiment two:

If the above-mentioned simple sounding IC15 uses a low-potential trigger, its delay circuit needs With minor changes, as shown in FIG. 8, the trigger terminal of the simple-sounding IC15 is connected to the negative electrode of the battery 3 through the capacitor C, the trigger terminal of the simple-sounding IC15 is also connected to the swing shaft 5 through the resistor R, and the reset electrode 14 is connected through the power switch 4 The positive electrode of the battery 3 is connected to the negative electrode of the battery 3.

The angular displacement switch 23 is normally connected to the reset electrode 14 to charge the capacitor. When the angular displacement switch 23 contacts the electrode 9 due to the abnormal posture of the user, the capacitor is discharged, and when the capacitor is discharged, the audible IC 15 starts. The integrated block The connected sounder 19 makes a sound.

Claims

Rights request

1. A simple time-delay reminder, comprising a housing (1), an ear hook (2), a battery (3), a power switch (4), a printed circuit board (16), an angular displacement switch (23), and simple sound IC

(15) A sounder (19), characterized in that: the swing body (8) of the angular displacement switch (23) is provided with an electrode (9) on one side and a reset electrode (14) on the other side; the reminder includes a The delay circuit (25), the triggering end of the above-mentioned pure sounding IC (15) is connected to one end of the charging and discharging capacitor (C) in the delay circuit (25).

2. The simple delay reminder according to claim 1, characterized in that the structure of the delay circuit (25) is: a trigger terminal of the simple sounding IC (I ⁵ ) is connected to a battery (3) via a capacitor (C). ) Is connected to the negative electrode, and the simple sounding IC (I ⁵ ) is also connected to the swing shaft (5) through the resistor (R), the electrode (9) is connected to the positive electrode of the battery (3) through the circuit switch (4), and the reset electrode (14) is connected to the battery (3) The negative electrode.

3. The simple delay reminder according to claim 1, characterized in that the structure of the delay circuit (25) is: the trigger end of the simple sounding IC (15) is connected to the battery (3) via a capacitor (C). The trigger terminal of the simple sounding IC (15) is also connected to the swing shaft (5) via a resistor (R), the reset electrode (14) is connected to the positive electrode of the battery (3) via a circuit switch (4), and the electrode (9) is connected The negative terminal of the battery (3).

4. The simple time-delay reminder according to claim 1 or 2 or 3, characterized in that: a shaft seat (20) is provided on the casing (1); and the angular displacement switch (23) includes a swing body (8) , Pendulum axis (5), angular displacement setting frame (10), electrode (9), reset electrode (14), wherein the angular displacement setting frame (10) and pendulum body (8) pass through the pendulum axis (5) ) Hinged, and the angular displacement setting frame (10) is also mounted on the shaft of the casing (1) through both ends of the swing shaft (5) Block (20).

5. The easy delay reminder for the tube according to claim 1, characterized in that: a volume adjustment hole () is provided on the casing (1), and the position of the volume adjustment hole (21) is correspondingly located inside the casing (1). Set the volume adjustment switch (13) or the variable resistor RP.

6. The simple delay reminder according to claim 1, characterized in that: the angular displacement setting frame (10) is provided with a handle (6) for adjusting its angle on the outside; and the handle (6) The side opening (7) of the casing (1) protrudes out of the shell; the outer side (7) of the casing (1) has scales (22) on both sides.

7. The easy-to-delay reminder for a cylinder according to claim 6, characterized in that: a plurality of grooves (11) are provided on an inner wall of the side opening (7), and the grooves (11) are all arranged on a swing axis

(5) On the arc of the upper circle center, a protrusion (17) is provided at a corresponding position on the handle (6), and the protrusion (17) matches the size and shape of the groove (11).

8. The simple time-delay reminder according to claim 4, characterized in that: the electrode (9), the reset electrode (14) is a spring card type or conductive provided on the angular displacement setting frame (10). Rod electrode.

9. The simple time-delay reminder according to claim 6, characterized in that: an arc-shaped plate (12) is provided between the handle (6) and the angular displacement setting frame (10).