CN214202615U

CN214202615U - Atmospheric pressure system monitoring autoalarm

Info

Publication number: CN214202615U
Application number: CN202120365508.7U
Authority: CN
Inventors: 魏元奋
Original assignee: Shanghai Shenkun Concrete Group Co ltd
Current assignee: Shanghai Shenkun Concrete Group Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-09-14
Anticipated expiration: 2031-02-07

Abstract

The utility model discloses a monitoring autoalarm of air pressure system, include: the barometer comprises a movement assembly, a dial plate and a pointer, wherein the pointer rotates in response to air pressure sensed by the movement assembly; the detection circuit comprises a power supply and an audible and visual alarm which are connected in series, wherein a connecting wire of the detection circuit is connected into the dial plate, and a broken circuit opening is formed at a set position on the dial plate; the fixed end of the pointer is electrically connected with one end of the open circuit, and the movable end rotates around the fixed end; work as after the expansion end rotates the set angle, with open circuit open-ended other end electricity is connected, switches on detect the return circuit, this application scheme directly utilizes the barometer to detect the atmospheric pressure in the air pressure system, utilizes the rotation of pointer to switch on the detection return circuit, and then triggers audible-visual annunciator and reports to the police, and simple structure is effective, simple to operate and low cost, and is reliable and stable, easily change and manufacturing.

Description

Atmospheric pressure system monitoring autoalarm

Technical Field

The utility model relates to an atmospheric pressure detection device technical field, more specifically say, it relates to an atmospheric pressure system monitoring autoalarm.

Background

In the commercial concrete production process, a plurality of pneumatic switch devices such as a pneumatic gate of an aggregate bin, a pneumatic switch valve used by a mixing bin and the like can be used, and the pneumatic switch valve is usually communicated with an air compressor through an air supply pipeline to form a production air pressure system. When the air compressor in the air pressure system breaks down or the air pressure of the system is insufficient, the pneumatic switch valve is very easy to be caused to be out of order, and further accidents such as bin explosion of an aggregate bin or material mixing of a mixing bin are caused. Therefore, the system air pressure needs to be monitored at any time and corresponding alarm signals need to be effectively output.

SUMMERY OF THE UTILITY MODEL

To the not enough this problem of production accident that leads to easily of pneumatic system atmospheric pressure for concrete production in practical application, this application has provided a pneumatic system monitoring autoalarm, and it can effectually monitor pneumatic system's atmospheric pressure, in time exports alarm signal when it is less than the setting value, reminds relevant staff to carry out the maintenance of equipment, avoids taking place the production accident, and concrete scheme is as follows:

an automatic alarm device for monitoring a pneumatic system, comprising:

the barometer comprises a movement assembly, a dial plate and a pointer, wherein the pointer rotates in response to air pressure sensed by the movement assembly;

the detection circuit comprises a power supply and an audible and visual alarm which are connected in series, wherein a connecting wire of the detection circuit is connected into the dial plate, and a broken circuit opening is formed at a set position on the dial plate;

the fixed end of the pointer is electrically connected with one end of the open circuit, and the movable end rotates around the fixed end;

and after the movable end rotates for a set angle, the movable end is electrically connected with the other end of the open circuit to conduct the detection loop.

Through above-mentioned technical scheme, directly utilize the barometer to detect the atmospheric pressure in the air pressure system, utilize the rotation of pointer to switch on the detection return circuit, and then trigger audible-visual annunciator and report to the police, simple structure is effective, simple to operate and low cost, and is reliable and stable, easily change and manufacturing.

Furthermore, the power supply is an external civil power supply, a live wire of the power supply is electrically connected with a rotating shaft at the fixed end of the pointer, and a zero line of the power supply is connected to the dial plate to form a power connection post;

a relay is arranged in the detection loop in series, and the audible and visual alarm is arranged on two sides of the relay in parallel.

Through the technical scheme, the audible and visual alarm can be driven to act by utilizing a civil power supply very conveniently, the cost is saved, and the installation is convenient.

Furthermore, audible and visual alarm includes warning light and buzzer subassembly, be provided with knife switch on audible and visual alarm and the parallel circuit between the detection return circuit.

Through the technical scheme, when the system is closed, the audible and visual alarm can be separated from the detection loop, so that the occurrence of false alarm is avoided.

Further, a switch piece is arranged on the detection loop.

Through the technical scheme, when the air pressure system stops working, the detection loop can be disconnected, and accidents are avoided.

Furthermore, the power connection post is provided with a power connection groove with the shape and the size matched with those of the end head of the movable end of the pointer, and the power connection groove is provided with a good conductive layer.

Through above-mentioned technical scheme, can increase the area of contact between pointer activity end head and the electric pole, promote electric conductivity, avoid the emergence of the detection failure condition that leads to because contact failure.

Furthermore, the pointer and the pointer rotating shaft are both made of good electric conductors.

Through the technical scheme, effective conduction of the detection loop can be ensured, and the occurrence of detection failure is avoided.

Furthermore, the automatic alarm device also comprises a remote signal sending module, and two power ends of the remote signal sending module are connected in parallel at two ends of the relay.

Through above-mentioned technical scheme, when detecting the return circuit and switching on, above-mentioned remote signal sending module gets electric, sends corresponding alarm information to remote monitoring terminal, can in time inform relevant staff to maintain the air pressure system.

Furthermore, a delay conduction circuit is arranged on a parallel circuit between the audible and visual alarm and the detection loop.

Through the technical scheme, the audible and visual alarm can output an alarm only after the pointer rotates to the set position and continues to set time, so that the false alarm caused by unstable air pressure is reduced.

Compared with the prior art, the beneficial effects of the utility model are as follows:

according to the scheme, the air pressure in the air pressure system is directly detected by the air pressure meter, the detection loop is conducted by the rotation of the pointer, and then the audible and visual alarm is triggered to alarm.

Drawings

FIG. 1 is an overall schematic view of an automatic alarm device for monitoring a pneumatic system;

FIG. 2 is a schematic view of the combination of the pointer and the electric pole.

Reference numerals: 1. a barometer; 2. a dial plate; 3. a pointer; 4. a detection circuit; 5. an audible and visual alarm; 6. a knife switch; 7. a switch member; 8. an electric connection groove; 9. a relay; 10. a delay-turn-on circuit; 11. and connecting the electric pole.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

An automatic alarm device for monitoring a pneumatic system is shown in figure 1 and mainly comprises a barometer 1 and a detection loop 4.

The barometer 1 adopts a conventional barometer 1 and mainly comprises a movement assembly, a dial 2 and a pointer 3, wherein the movement assembly comprises a spring tube, a sealing sheet, a connecting rod and the like. The pointer 3 of the barometer 1 rotates in response to the air pressure sensed by the movement assembly, facilitating the reading by the user.

As shown in fig. 1, the detection circuit 4 includes a power supply and an audible and visual alarm 5 connected in series, a connecting wire of the detection circuit 4 is connected to the dial 2, and a cut-off opening is formed at a set position on the dial 2, and when the cut-off opening is turned on, the audible and visual alarm 5 gives an audible and visual alarm.

In the embodiment of the present application, the fixed end of the pointer 3, i.e. the end connected to the rotating shaft, is electrically connected to the end of the open-circuit opening, and the movable end of the pointer 3 rotates around the fixed end. When the movable end rotates for a set angle, the movable end is electrically connected with the other end of the open circuit, the detection loop 4 is conducted, and then the alarm is triggered.

In the application, the power supply is configured as an external civil power supply, the live wire of the power supply is electrically connected with the rotating shaft at the fixed end of the pointer 3, and the zero wire of the power supply is connected to the dial 2 to form a power pole 11. It should be noted that the pointer 3 and the rotating shaft of the pointer 3 are both made of good electrical conductors, such as silver, copper, etc., so as to ensure effective conduction of the detection loop 4 and avoid detection failure. In a specific embodiment, the power supply may be configured as a dc power supply supplied from a battery.

In the embodiment of the application, a relay 9 is arranged in the detection loop 4 in series, the audible and visual alarm 5 is arranged on two sides of the relay 9 in parallel, and the voltage is obtained by utilizing the divided voltage to trigger the alarm.

Audible-visual annunciator 5 includes warning light and buzzer subassembly, is provided with knife switch 6 on the parallel circuit between audible-visual annunciator 5 and detection return circuit 4, when the system closed, can break away from audible-visual annunciator 5 from detection return circuit 4, avoids the emergence of wrong report.

When the pneumatic system stops working, in order to disconnect the detection circuit 4 and avoid accidents, the detection circuit 4 is provided with a switch 7.

As shown in fig. 2, the power connection pole 11 connected to the zero line of the power supply is provided with a power connection slot 8 with a shape and size matched with the shape and size of the movable end head of the pointer 3, and the power connection slot 8 is provided with a good conductive layer. In one embodiment, the bottom of the electrical contact groove 8 is serrated, and the movable end of the pointer 3 is serrated, so that when the two are combined, the connection can be tight, the contact area between the movable end of the pointer 3 and the electrical contact post 11 is increased, the conductivity is improved, and the occurrence of detection failure caused by poor contact is avoided.

In order to timely inform related workers of maintaining the air pressure system, the air pressure system monitoring automatic alarm device further comprises a remote signal sending module, and two power supply ends of the remote signal sending module are connected in parallel to be arranged at two ends of the relay 9. The signal sending module can be configured as a 4G communication module, a memory storing related alarm information and a sending controller (such as a single chip microcomputer and the like), when the sending controller is powered on, the sending controller can control the 4G communication module to send the alarm information in the memory to a specified monitoring terminal, and the monitoring terminal comprises but is not limited to a smart phone and a tablet personal computer, so that remote alarm is realized.

In the embodiment of the present application, in order to avoid the occurrence of false alarm due to unstable air pressure of the air pressure system, a delay conducting circuit 10 is provided in a parallel circuit between the audible and visual alarm 5 and the detection circuit 4. The time delay conducting circuit 10 can be configured as a rectifier filter and a large-capacity charging capacitor connected in series, the rectifier filter rectifies the waveform of the current in the parallel circuit, one end of the charging capacitor is connected with the output end of the rectifier filter and connected with the power end of the audible and visual alarm 5, and the other end of the charging capacitor is grounded, so that the audible and visual alarm 5 can achieve adaptive voltage output audible and visual alarm only after the charging of the charging capacitor is completed when the parallel circuit is continuously conducted for a set time, and in a specific embodiment, the time delay output circuit can also adopt a time relay 9.

The utility model discloses principle and beneficial effect of scheme lie in:

the air pressure in the air pressure system is detected by directly utilizing the air pressure meter 1, the detection loop 4 is conducted by utilizing the rotation of the pointer 3, and then the audible and visual alarm 5 is triggered to alarm.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An atmospheric pressure system monitoring autoalarm, its characterized in that includes:

the barometer (1) comprises a movement assembly, a dial (2) and a pointer (3), wherein the pointer (3) rotates in response to air pressure sensed by the movement assembly;

the detection circuit (4) comprises a power supply and an audible and visual alarm (5) which are mutually connected in series, a connecting wire of the detection circuit (4) is connected into the dial (2), and a set position on the dial (2) forms an open circuit opening;

the fixed end of the pointer (3) is electrically connected with one end of the open circuit, and the movable end rotates around the fixed end;

and when the movable end rotates for a set angle, the movable end is electrically connected with the other end of the open circuit to conduct the detection loop (4).

2. The atmospheric pressure system monitoring autoalarm of claim 1, characterized in that, the power supply is an external civil power supply, the live wire of the power supply is electrically connected with the rotating shaft at the fixed end of the pointer (3), the zero line of the power supply is connected to the dial (2) and forms a connecting post (11);

a relay (9) is arranged in the detection loop (4) in series, and the audible and visual alarm (5) is arranged on two sides of the relay (9) in parallel.

3. The monitoring automatic alarm device for the air pressure system as claimed in claim 2, wherein the audible and visual alarm (5) comprises a warning light and a buzzer assembly, and a knife switch (6) is arranged on a parallel circuit between the audible and visual alarm (5) and the detection loop (4).

4. The monitoring autoalarm of air pressure system according to claim 1, characterized in that the detection loop (4) is provided with a switch member (7).

5. The air pressure system monitoring automatic alarm device as claimed in claim 2, wherein the electric connecting column (11) is provided with an electric connecting groove (8) with a shape and a size matched with the shape and the size of the movable end head of the pointer (3), and the electric connecting groove (8) is provided with a good conductive layer.

6. The automatic alarm device for monitoring the air pressure system as claimed in claim 1, wherein the pointer (3) and the rotating shaft of the pointer (3) are made of good electric conductors.

7. The monitoring automatic alarm device for the pneumatic system as claimed in claim 2, further comprising a remote signal sending module, wherein two power terminals of the remote signal sending module are connected in parallel to two ends of the relay (9).

8. The monitoring automatic alarm device for the air pressure system as claimed in claim 3, wherein a time delay conducting circuit (10) is arranged on a parallel circuit between the audible and visual alarm (5) and the detection loop (4).