A rat-proof baffle with off-site alarm function

Abstract

The utility model discloses a rat baffle with off normal position alarm function, including two guide rails, baffle, magnet, magnetic switch, control circuit and audible -visual alarm, two guide rails parallel fixed in the door mouth both sides of needing to be closed, two ends of baffle are connected with two guide rails sliding respectively, magnetic switch, control circuit and audible -visual alarm all install on the baffle, the normally open contact of magnetic switch is connected with the signal input of control circuit, and audible -visual alarm is connected with the alarm signal output of control circuit, the magnet is installed on a guide rail and corresponds with magnetic switch.

Description

Technical Field

[0001] This utility model relates to a rodent-proof baffle with an off-position alarm function, which can automatically emit an audible and visual alarm when the rodent-proof baffle leaves its installation position, and belongs to the field of electrical protection technology. Background Technology

[0002] For large industrial power distribution rooms, ensuring the safety of internal equipment is paramount. To prevent small animals such as rats from entering and damaging electrical equipment, each power distribution room entrance is equipped with rodent-proof barriers. Since these barriers can interfere with worker operations, they are typically removed when working at the entrance and replaced when leaving. However, in practice, workers often forget to replace the barriers, allowing small animals to enter the power distribution room and cause short circuits, resulting in significant losses for the company. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a rodent-proof barrier with an off-position alarm function, which prompts workers to reset the rodent-proof barrier in a timely manner when leaving, thereby ensuring the safe operation of electrical equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rodent-proof baffle with an off-position alarm function includes two guide rails, a baffle, a magnet, a magnetic switch, a control circuit, and an audible and visual alarm. The two guide rails are fixed parallel to each other on both sides of the doorway to be blocked. The two ends of the baffle are slidably connected to the two guide rails respectively. The magnetic switch, the control circuit, and the audible and visual alarm are all mounted on the baffle. The normally open contact of the magnetic switch is connected to the signal input terminal of the control circuit, and the audible and visual alarm is connected to the alarm signal output terminal of the control circuit. The magnet is mounted on one of the guide rails and corresponds to the magnetic switch.

[0006] The aforementioned rodent-proof baffle with off-position alarm function includes an NPN transistor, a PNP transistor, a bias resistor, and a DC power supply in its control circuit. The normally open contact of the magnetic switch is connected between the base and emitter of the NPN transistor. The emitter of the NPN transistor is connected to the negative terminal of the DC power supply. The bias resistor is connected between the base of the NPN transistor and the positive terminal of the DC power supply. The base of the PNP transistor is connected to the collector of the NPN transistor, and the emitter is connected to the positive terminal of the DC power supply. The audible and visual alarm is connected between the collector of the PNP transistor and the negative terminal of the DC power supply.

[0007] The aforementioned rodent-proof baffle with off-position alarm function includes a DC power supply comprising a battery and an AC bypass capacitor, wherein the AC bypass capacitor is connected in parallel with the battery.

[0008] The aforementioned rodent-proof baffle with off-position alarm function also includes a power indicator circuit in the DC power supply. The power indicator circuit includes a current-limiting resistor and a light-emitting diode. The current-limiting resistor and the light-emitting diode are connected in series and then connected to the two ends of the battery.

[0009] The aforementioned rodent-proof baffle with off-position alarm function uses a normally open reed switch as its magnetic switch.

[0010] The aforementioned rodent-proof baffle with off-position alarm function is made of aluminum alloy plate.

[0011] This invention utilizes magnets and magnetic switches to detect the position of rodent-proof barriers. When the barriers are out of position, an audible and visual alarm signal is emitted to prompt staff to restore the rodent-proof barriers in a timely manner. This prevents small animals from entering the power distribution room and causing short circuits, eliminates safety hazards, and ensures the safe operation of electrical equipment in the power distribution room. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is the electrical schematic diagram of this utility model.

[0015] The following are the labels in the diagram: 1. Guide rail; 2. Magnet; 3. Baffle; 4. Control circuit; K. Magnetic switch; Q1. NPN transistor; Q2. PNP transistor; R1. Bias resistor; R2. Current limiting resistor; C. AC bypass capacitor; BT. Battery; BU. Audible and visual alarm; D. Light-emitting diode. Detailed Implementation

[0016] This utility model addresses the problems existing in the prior art by providing a rodent-proof barrier with an off-position alarm function. This rodent-proof barrier can automatically issue an audible and visual alarm when it is not installed in place, prompting workers to reset it in time, preventing small animals from entering the power distribution room and causing short circuit accidents, and ensuring the safe operation of electrical equipment in the power distribution room.

[0017] See Figure 1 and Figure 2 This utility model mainly includes a guide rail 1, a baffle 3, a magnet 2, a magnetic switch K, a control circuit 4, and an audible and visual alarm BU. Among them, the control circuit 4 includes an NPN transistor Q1, a PNP transistor Q2, a bias resistor R1, an AC bypass capacitor C, a battery BT, a current-limiting resistor R2, and a light-emitting diode D.

[0018] Two parallel guide rails 1 are fixed on both sides of the doorway to be blocked, for mounting baffles 3. Baffles 3 are made of aluminum alloy, with both ends slidably connected to the two guide rails 1, allowing them to slide along and be detached from the guide rails 1. A magnetic switch K, a control circuit 4, and an audible and visual alarm BU are all mounted on baffles 3. The normally open contact of the magnetic switch K is connected to the signal input terminal of the control circuit 4, and the audible and visual alarm BU is connected to the alarm signal output terminal of the control circuit 4. A magnet 2 is mounted on one of the guide rails 1 and corresponds to the magnetic switch K.

[0019] See Figure 2 The magnetic switch K is a normally open reed switch, which works in conjunction with a magnet 2 fixed on a guide rail 1. The normally open contact of the magnetic switch K is connected between the base and emitter of the NPN transistor Q1. The emitter of the NPN transistor Q1 is connected to the negative terminal of the battery BT. The bias resistor R1 is connected between the base of the NPN transistor Q1 and the positive terminal of the battery BT, providing bias current for the normal operation of the NPN transistor Q1. The emitter junction of the PNP transistor Q2 is the collector load of the NPN transistor Q1, and the NPN transistor Q1 provides the base operating current for the PNP transistor Q2. The audible and visual alarm BU is the collector load of the PNP transistor Q2. The AC bypass capacitor C is connected in parallel with the battery BT, mainly to reduce the AC internal resistance of the battery BT, making the audible and visual alarm BU sound louder, and also to a certain extent to extend the battery life. The battery BT provides the operating power for the entire circuit. When the audible and visual alarm BU is powered on, it emits an audible and visual alarm signal to remind staff that the baffle 3 is not in place.

[0020] The current-limiting resistor R2 and the light-emitting diode D constitute a power indicator circuit.

[0021] When the rodent-proof baffle 3 is removed, the magnet 2 mounted on one of the guide rails 1 separates from the magnetic switch K on the baffle 3. The normally open contact of the magnetic switch K opens, the base potential of the NPN transistor Q1 rises, and the NPN transistor Q1 is in a conducting state. At this time, the PNP transistor Q2 is also in a conducting state because it receives the base working current provided by the NPN transistor Q1. Thus, the audible and visual alarm BU is powered on and starts working, emitting an audible and visual alarm signal to remind the worker that the baffle 3 is not in place. When the rodent-proof baffle 3 is inserted into the two guide rails 1 and installed in place, the magnetic switch K approaches the magnetic switch K, and its normally open contact closes. The base potential of the NPN transistor Q1 is zero, and the NPN transistor Q1 is not conducting. The PNP transistor Q2, because it receives the base working current provided by the NPN transistor Q1, enters a high-resistance state. Thus, the audible and visual alarm BU loses power and stops alarming.

[0022] The NPN transistor Q1 is an S9014 (ICM 0.15A, PCM 450mW); the PNP transistor Q2 is a 9012 (ICM 0.5A, PCM 625mW); the bias resistor R1 is 100 kΩ, the current limiting resistor R2 is 10 kΩ, the battery BT is a 9V battery, the external battery box is easy to replace, the quiescent current is low, and the working time is long.

[0023] This invention utilizes a magnet 2 and a magnetic switch K to detect whether the rodent-proof barrier is installed correctly. When the barrier is installed correctly, the audible and visual alarm BU does not emit an alarm signal. If the barrier is removed for some reason and not immediately replaced, the audible and visual alarm BU immediately emits an audible and visual alarm signal to prompt the worker to replace the rodent-proof barrier. Once the rodent-proof barrier is replaced, the audible and visual alarm is deactivated. This effectively prevents workers from forgetting to replace the rodent-proof barrier when entering or leaving the power distribution room, thus avoiding small animals entering the power distribution room and causing short circuits in the equipment.

[0024] This utility model also has the advantages of simple structure, reliable operation, convenient installation and maintenance, and is easy to promote and apply.

[0025] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention (such as mounting the magnet 2 on the baffle 3, and mounting the magnetic switch K, control circuit 4, and audible and visual alarm BU on the guide rail 1 to achieve the same effect) should all fall within the protection scope of the present invention.

Claims

1. A rodent-proof baffle with an off-position alarm function, characterized in that, It includes two guide rails (1), a baffle (3), a magnet (2), a magnetic switch (K), a control circuit (4), and an audible and visual alarm (BU). The two guide rails (1) are fixed in parallel on both sides of the doorway that needs to be blocked. The two ends of the baffle (3) are slidably connected to the two guide rails (1) respectively. The magnetic switch (K), the control circuit (4), and the audible and visual alarm (BU) are all installed on the baffle (3). The normally open contact of the magnetic switch (K) is connected to the signal input terminal of the control circuit (4), and the audible and visual alarm (BU) is connected to the alarm signal output terminal of the control circuit (4). The magnet (2) is installed on one of the guide rails (1) and corresponds to the magnetic switch (K).

2. A rodent-proof baffle with an off-position alarm function according to claim 1, characterized in that, The control circuit (4) includes an NPN transistor (Q1), a PNP transistor (Q2), a bias resistor (R1), and a DC power supply. The normally open contact of the magnetic switch (K) is connected between the base and emitter of the NPN transistor (Q1). The emitter of the NPN transistor (Q1) is connected to the negative terminal of the DC power supply. The bias resistor (R1) is connected between the base of the NPN transistor (Q1) and the positive terminal of the DC power supply. The base of the PNP transistor (Q2) is connected to the collector of the NPN transistor (Q1), and the emitter is connected to the positive terminal of the DC power supply. The audible and visual alarm (BU) is connected between the collector of the PNP transistor (Q2) and the negative terminal of the DC power supply.

3. A rodent-proof baffle with an off-position alarm function according to claim 2, characterized in that, The DC power supply includes a battery (BT) and an AC bypass capacitor (C), which is connected in parallel with the battery (BT).

4. A rodent-proof baffle with an off-position alarm function according to claim 3, characterized in that, The DC power supply also includes a power indicator circuit, which includes a current-limiting resistor (R2) and a light-emitting diode (D). The current-limiting resistor (R2) and the light-emitting diode (D) are connected in series and then connected to the two ends of the battery (BT).

5. A rodent-proof baffle with an off-position alarm function according to any one of claims 1-4, characterized in that, The magnetic switch (K) is a normally open reed switch.

6. A rodent-proof baffle with an off-position alarm function according to claim 5, characterized in that, The baffle (3) is an aluminum alloy plate.

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