A multi-functional dual-channel timer

Abstract

This utility model discloses a multifunctional dual-channel timer, including a timer housing. On the front of the housing are mounted a first start button, a first audible and visual alarm, a first timer, a power switch, a second timer, a second audible and visual alarm, and a second start button. On one side of the housing are a power cord and a foot switch. The power cord, starting from the positive terminal, connects to the power switch and then connects to two parallel circuits. The first circuit connects to the first timer and then to the first audible and visual alarm via the first start button; the second circuit connects to the second timer and then to the second audible and visual alarm via the second start button. The foot switch is connected in parallel with both the first and second start buttons. The two timers disclosed in this utility model can operate independently, have personalized adjustment methods, have a simple structure, reliable operation, and are convenient and quick to operate, helping laboratories to quickly complete various tasks and improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of timer technology, specifically to a multifunctional dual-channel timer. Background Technology

[0002] Many timers exist, but their practical use is inconvenient. For example, medical testing laboratories sometimes require rapid timing of around 10 seconds, and the timing duration needs to be quickly adjusted according to different experimental projects. Existing timers are mainly inconvenient and slow in adjusting the timing time and rapid timing. Therefore, we need to develop a multifunctional dual-channel timer with two sets of timers that can operate independently, have personalized adjustment methods, a simple structure, reliable operation, and convenient and quick operation. This will help laboratories complete various tasks quickly and improve work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional dual-channel timer that allows two sets of timers to operate independently, has a personalized adjustment method, a simple structure, reliable operation, and convenient and quick operation, which helps the laboratory to quickly complete various tasks and improve work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional dual-channel timer, comprising a timer housing, on the front of which are mounted a first start button, a first audible and visual alarm, a first timer, a power switch, a second timer, a second audible and visual alarm, and a second start button; a power cord and a foot switch are provided on one side of the housing; the power cord extends from the positive terminal, connects to the power switch, and then connects to two parallel circuits; the first circuit connects to the first timer and then to the first audible and visual alarm via the first start button; the second circuit connects to the second timer and then to the second audible and visual alarm via the second start button; the foot switch is connected in parallel with both the first and second start buttons.

[0005] Furthermore, the first timer includes: a first intermediate relay (KA1), a first time relay (KT1), and a second time relay (KT2). The input terminal of the first intermediate relay (KA1) is connected in series with the first start button; the normally open contact of the first intermediate relay (KA1) is connected to the input terminal of the first time relay (KT1) and controls the on / off state of its coil; the delayed closing contact of the first time relay (KT1) is connected to the input terminal of the second time relay (KT2) and controls the on / off state of its coil; the delayed opening contact of the second time relay (KT2) is connected to the first audible and visual alarm and controls its on / off state.

[0006] The second timer includes: a second intermediate relay (KA2), a third time relay (KT3), and a fourth time relay (KT4). The input terminal of the second intermediate relay (KA2) is connected in series with the second start button; the input terminal of the third time relay (KT3) is connected to the normally open contact of the second intermediate relay (KA2) and controls the on / off state of its coil; the delayed closing contact of the third time relay (KT3) is connected to the input terminal of the fourth time relay (KT4) and controls the on / off state of its coil; the delayed opening contact of the fourth time relay (KT4) is connected to the second audible and visual alarm and controls its on / off state.

[0007] Furthermore, both the second time relay (KT2) and the fourth time relay (KT4) achieve self-locking control through their own delayed disconnect contacts. When the first time relay (KT1) contact closes, the coil of the second time relay (KT2) is energized, and the instantaneously normally open contact of the second time relay (KT2) closes, causing the first audible and visual alarm to operate. At the same time, the delayed disconnect contact of the second time relay (KT2) remains self-locking. When the delay time of the second time relay (KT2) expires, its delayed disconnect contact opens, the coil of the second time relay (KT2) is de-energized, and the first audible and visual alarm stops operating.

[0008] When the third time relay (KT3) contact closes, the coil of the fourth time relay (KT4) is energized, and the instantaneously normally open contact of the fourth time relay (KT4) closes, causing the second audible and visual alarm to operate. At the same time, the delayed-open contact of the fourth time relay (KT4) remains self-locking. When the delay time of the fourth time relay (KT4) expires, its delayed-open contact opens, the coil of the fourth time relay (KT4) is de-energized, and the second audible and visual alarm stops operating.

[0009] Furthermore, the first time relay (KT1), the second time relay (KT2), ​​the third time relay (KT3), and the fourth time relay (KT4) all use JSZ3A time relays, with time selectable from 0.5 seconds to 24 hours.

[0010] Furthermore, when the foot switch is triggered, the parallel circuit of the first start button and the second start button is activated simultaneously, realizing dual-channel single-foot start.

[0011] The beneficial effects of this utility model are: It has a simple structure, reliable operation, and convenient and quick use, making it particularly suitable for laboratories or places requiring timed operation. Two sets of timers operate independently and have personalized adjustment methods. Each set can select from 28 timing ranges and time accuracies, from 0.5 seconds to 24 hours, according to actual needs. Upon reaching the set time, it provides both audible and visual alerts, with the alert duration adjustable from 0.1 seconds to 99 hours. The system automatically resets and enters standby mode when the set time is reached. Simultaneously, this utility model also features a self-resetting mechanical foot switch connected in parallel across the start button, allowing for better hands-free operation and foot-operated start-up of the timer, making it more flexible and versatile, and enhancing its applicability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is the circuit schematic diagram of this utility model;

[0014] In the diagram: 1-First start button, 2-First audible and visual alarm, 3-First timer, 4-Power switch, 5-Power cord, 6-Foot switch, 7-Second timer, 8-Second audible and visual alarm, 9-Second start button. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 This utility model provides a technical solution: a multifunctional dual-channel timer, including a timer housing. On the front of the housing are mounted a first start button 1, a first audible and visual alarm 2, a first timer 3, a power switch 4, a second timer 7, a second audible and visual alarm 8, and a second start button 9. On one side of the housing are a power cord 5 and a foot switch 6. The power cord 5 extends from its positive terminal, connects to the power switch 4, and then connects to two parallel circuits. The first circuit connects to the first timer 3 via the first start button 1 and then to the first audible and visual alarm 2. The second circuit connects to the second timer 7 via the second start button 9 and then to the second audible and visual alarm 8. The foot switch 6 is connected in parallel with both the first start button 1 and the second start button 9.

[0017] Furthermore, the first timer 3 includes: a first intermediate relay (KA1), a first time relay (KT1), and a second time relay (KT2). The input terminal of the first intermediate relay (KA1) is connected in series with the first start button 1; the normally open contact of the first intermediate relay (KA1) is connected to the input terminal of the first time relay (KT1) and controls the on / off state of its coil; the delayed closing contact of the first time relay (KT1) is connected to the input terminal of the second time relay (KT2) and controls the on / off state of its coil; the delayed opening contact of the second time relay (KT2) is connected to the first audible and visual alarm 2 and controls its on / off state.

[0018] The second timer 7 includes: a second intermediate relay (KA2), a third time relay (KT3), and a fourth time relay (KT4). The input terminal of the second intermediate relay (KA2) is connected in series with the second start button 9. The input terminal of the third time relay (KT3) is connected to the normally open contact of the second intermediate relay (KA2) and controls the on / off state of its coil. The delayed closing contact of the third time relay (KT3) is connected to the input terminal of the fourth time relay (KT4) and controls the on / off state of its coil. The delayed opening contact of the fourth time relay (KT4) is connected to the second audible and visual alarm 8 and controls its on / off state.

[0019] Furthermore, both the second time relay (KT2) and the fourth time relay (KT4) achieve self-locking control through their own delayed disconnecting contacts. When the first time relay (KT1) contacts are closed, the coil of the second time relay (KT2) is energized, and the instantaneously normally open contact of the second time relay (KT2) closes, causing the first audible and visual alarm 2 to operate. At the same time, the delayed disconnecting contact of the second time relay (KT2) remains self-locking. When the delay time of the second time relay (KT2) expires, its delayed disconnecting contact opens, the coil of the second time relay (KT2) is de-energized, and the first audible and visual alarm 2 stops operating.

[0020] When the third time relay (KT3) contact closes, the coil of the fourth time relay (KT4) is energized, and the instantaneously normally open contact of the fourth time relay (KT4) closes, causing the second audible and visual alarm 8 to operate. At the same time, the delayed disconnect contact of the fourth time relay (KT4) remains self-locking. When the delay time of the fourth time relay (KT4) expires, its delayed disconnect contact opens, the coil of the fourth time relay (KT4) is de-energized, and the second audible and visual alarm 8 stops operating.

[0021] Furthermore, the first time relay (KT1), the second time relay (KT2), ​​the third time relay (KT3), and the fourth time relay (KT4) all use JSZ3A time relays, with time selectable from 0.5 seconds to 24 hours. After the set time is reached, the first audible and visual alarm 2 or the second audible and visual alarm 8 both have dual audible and visual prompt functions.

[0022] Furthermore, when the foot switch 6 is triggered, the parallel circuit of the first start button 1 and the second start button 9 is activated simultaneously, realizing dual-channel single-foot start.

[0023] In use, first turn on the power switch 4, then directly adjust the knob corresponding to the timing requirement, either the first timer 3 or the second timer 7. Since the timer uses a JSZ3A time relay, the time can be selected from 0.5 seconds to 24 hours. After pressing the start button, the timing begins. Because the JSZ3A time relay has a power-on delay and two normally open and two normally closed contacts, for example, if we set the time to 10 seconds, the load can be connected or disconnected after 10 seconds. Upon reaching the set time, there is a dual audible and visual alert. After the preset alert duration is reached, it automatically resets and enters standby mode. Pressing the start button again repeats the above steps. Simultaneously, this invention also connects a self-resetting mechanical foot switch 6 in parallel across the start button, which can better free up the hands, allowing for foot-operated timing, making it more flexible and versatile, and enhancing its applicability.

Claims

1. A multifunctional dual-channel timer, characterized in that: The device includes a timer housing. On the front of the housing are a first start button (1), a first audible and visual alarm (2), a first timer (3), a power switch (4), a second timer (7), a second audible and visual alarm (8), and a second start button (9). On one side of the housing are a power cord (5) and a foot switch (6). The power cord (5) comes out from the positive terminal and connects to the power switch (4) and then connects to two circuits in parallel. The first circuit connects to the first timer (3) through the first start button (1) and then to the first audible and visual alarm (2). The second circuit connects to the second timer (7) through the second start button (9) and then to the second audible and visual alarm (8). The foot switch (6) is connected in parallel with the first start button (1) and the second start button (9).

2. The multifunctional dual-channel timer according to claim 1, characterized in that: The first timer (3) includes: a first intermediate relay (KA1), a first time relay (KT1), and a second time relay (KT2). The input terminal of the first intermediate relay (KA1) is connected in series with the first start button (1). The normally open contact of the first intermediate relay (KA1) is connected to the input terminal of the first time relay (KT1) and controls the opening and closing of its coil. The delayed closing contact of the first time relay (KT1) is connected to the input terminal of the second time relay (KT2) and controls the opening and closing of its coil. The delayed opening contact of the second time relay (KT2) is connected to the first audible and visual alarm (2) and controls its opening and closing. The second timer (7) includes: a second intermediate relay (KA2), a third time relay (KT3), and a fourth time relay (KT4). The input terminal of the second intermediate relay (KA2) is connected in series with the second start button (9); the input terminal of the third time relay (KT3) is connected to the normally open contact of the second intermediate relay (KA2) and controls the opening and closing of its coil; the delayed closing contact of the third time relay (KT3) is connected to the input terminal of the fourth time relay (KT4) and controls the opening and closing of its coil; the delayed opening contact of the fourth time relay (KT4) is connected to the second audible and visual alarm (8) and controls its opening and closing.

3. A multifunctional dual-channel timer according to claim 2, characterized in that: Both the second time relay (KT2) and the fourth time relay (KT4) achieve self-locking control through their own delayed disconnect contacts; when the first time relay (KT1) contact is closed, the coil of the second time relay (KT2) is energized, and the instantaneously normally open contact of the second time relay (KT2) closes to make the first audible and visual alarm (2) work, while the delayed disconnect contact of the second time relay (KT2) remains self-locked; when the delay time of the second time relay (KT2) is up, its delayed disconnect contact opens, the coil of the second time relay (KT2) is de-energized, and the first audible and visual alarm (2) stops working; When the third time relay (KT3) contact is closed, the coil of the fourth time relay (KT4) is energized, and the instantaneous normally open contact of the fourth time relay (KT4) closes to make the second audible and visual alarm (8) work. At the same time, the delayed disconnect contact of the fourth time relay (KT4) remains self-locking. When the delay time of the fourth time relay (KT4) is up, its delayed disconnect contact opens, the coil of the fourth time relay (KT4) is de-energized, and the second audible and visual alarm (8) stops working.

4. A multifunctional dual-channel timer according to claim 2 or 3, characterized in that: The first time relay (KT1), the second time relay (KT2), ​​the third time relay (KT3), and the fourth time relay (KT4) all use JSZ3A time relays, with time options ranging from 0.5 seconds to 24 hours.

5. A multifunctional dual-channel timer according to claim 1, characterized in that: When the foot switch (6) is triggered, the first start button (1) and the second start button (9) are activated in parallel to realize dual-channel single-foot start.

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