CN218916645U - Novel dynamic pressure monitoring device - Google Patents
Novel dynamic pressure monitoring device Download PDFInfo
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- CN218916645U CN218916645U CN202221865930.XU CN202221865930U CN218916645U CN 218916645 U CN218916645 U CN 218916645U CN 202221865930 U CN202221865930 U CN 202221865930U CN 218916645 U CN218916645 U CN 218916645U
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- monitoring device
- circuit board
- pressure monitoring
- dynamic pressure
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Abstract
The utility model discloses a novel dynamic pressure monitoring device which comprises a front shell, a rear shell, a circuit board and a sliding cover, wherein the front shell is fixedly connected with the rear shell, the circuit board is arranged between the front shell and the rear shell, the sliding cover is slidably arranged on the outer side of the front shell, an MCU (micro control unit), a display screen, a dial switch, a reset button, an absolute pressure sensor and a wiring terminal are arranged on the circuit board, and the display screen, the dial switch, the reset button, the absolute pressure sensor and the wiring terminal are all connected with the MCU through electric signals. The novel dynamic pressure monitoring device detects the pressure value of the measured space through the absolute pressure sensor, compares the pressure value with the preset standard pressure value, obtains the air pressure variation in a certain condition or time, does not need to be connected with an air pipe like a traditional differential pressure sensor, reduces the installation and construction process, and reduces the cost.
Description
Technical Field
The utility model relates to the technical field of pressure monitoring, in particular to a novel dynamic pressure monitoring device.
Background
At present, the fire control field generally uses residual pressure monitoring system to carry out fire control, and it detects through the pressure to each region, compares the pressure difference between the pressure and judges fire control safety. Although the residual pressure monitoring purpose can be achieved, certain defects still exist, the existing residual pressure monitoring system needs to be provided with an air pressure collecting point inside and outside a measured space through a differential pressure sensor so as to calculate the air pressure difference inside and outside the measured space, but the air pressure collecting point outside the measured space needs to be connected with the differential pressure sensor inside the measured space through a pipeline, and the installation is troublesome and the cost is high.
Disclosure of Invention
In order to solve the technical problems, the utility model discloses a novel dynamic pressure monitoring device which comprises a front shell, a rear shell, a circuit board and a sliding cover, wherein the front shell is fixedly connected with the rear shell, the circuit board is arranged between the front shell and the rear shell, the sliding cover is slidably arranged on the outer side of the front shell, an MCU (micro control unit), a display screen, a dial switch, a reset button, an absolute pressure sensor and a wiring terminal are arranged on the circuit board, and the display screen, the dial switch, the reset button, the absolute pressure sensor and the wiring terminal are all connected with the MCU through electric signals.
Further, a bar-shaped opening and a circular opening are formed in the front shell, the dial switch is located in the bar-shaped opening, and the reset button is located in the circular opening.
Further, a first air inlet is formed in the bottom of the sliding cover, and a second air inlet communicated with the first air inlet is formed in the bottom of the front shell.
Further, a wiring opening is further formed in the rear shell, and the wiring terminal is located in the wiring opening.
Further, a gas sensor is arranged on the circuit board and is connected with the MCU through an electric signal.
Further, a temperature and humidity sensor is arranged on the circuit board and is connected with the MCU through an electric signal.
The beneficial effects of the utility model are as follows:
the novel dynamic pressure monitoring device detects the pressure value of the measured space through the absolute pressure sensor, compares the pressure value with the preset standard pressure value, obtains the air pressure variation in a certain condition or time, does not need to be connected with an air pipe like a traditional differential pressure sensor, reduces the installation and construction process, and reduces the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the front structure of the present utility model;
FIG. 3 is an exploded view of the back side structure of the present utility model;
fig. 4 (a) - (f) are schematic circuit diagrams of the present utility model.
Reference numerals:
1-a front housing; 2-a rear housing; 3-a circuit board; 4-sliding cover; 5-MCU; 6-a display screen; 7-dial switch; 8-a reset button; 9-absolute pressure sensor; 10-connecting terminals; 11-bar-shaped openings; 12-a circular opening; 13-a first air inlet; 14-a second air inlet; 15-wire openings; 16-a gas sensor; 17-a temperature and humidity sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise specifically indicated and defined. For example, the connection can be fixed connection, detachable connection or integral connection; can be mechanically or electrically connected; can be directly connected, can be connected through an intermediary medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-3, the novel dynamic pressure monitoring device of the embodiment comprises a front housing 1, a rear housing 2, a circuit board 3 and a sliding cover 4, wherein the front housing 1 is fixedly connected with the rear housing 2, the circuit board 3 is arranged between the front housing 1 and the rear housing 2, and the sliding cover 4 is slidably arranged outside the front housing 1; the circuit board 3 is provided with an MCU 5, a display screen 6, a dial switch 7, a reset button 8, an absolute pressure sensor 9 and a wiring terminal 10, and the display screen 6, the dial switch 7, the reset button 8, the absolute pressure sensor 9 and the wiring terminal 10 are all connected with the MCU 5 through electric signals.
The front shell 1 is provided with a strip-shaped opening 11 and a circular opening 12, the dial switch 7 is positioned in the strip-shaped opening 11, and the reset button 8 is positioned in the circular opening 12. When the sliding cover 4 slides out, the dial switch 7 and the reset button 8 are exposed, so that the operation of a worker is facilitated.
The bottom of the sliding cover 4 is provided with a first air inlet 13, the bottom of the front shell 1 is provided with a second air inlet 14 communicated with the first air inlet 13, and external air flows into the device through the first air inlet 13 and the second air inlet 14 so as to be detected by related sensors.
The rear housing 2 is further provided with a wiring opening 15, and the wiring terminal 10 is located in the wiring opening 15.
The circuit board 3 is also provided with a gas sensor 16 and a temperature and humidity sensor 17, and the gas sensor 16 and the temperature and humidity sensor 17 are connected with the MCU 5 through electric signals.
The specific wiring modes of the MCU 5, the dial switch 7, the reset button 8, the absolute pressure sensor 9, the gas sensor 16 and the temperature and humidity sensor 17 are shown in fig. 4 (a) - (f), wherein:
the MCU 5 adopts SH79F6428P series single chip microcomputer for controlling the normal work of each module and sensor.
The dial switch 7 is an address switch for operation control, adopts a binary coding principle of 0/1, and has two pins ON the upper and lower sides of the back corresponding to each key of the dial switch 7, and dials to the ON side, and the lower two pins are connected; and otherwise, the switch is disconnected.
The reset button 8 is used for resetting the numerical value displayed on the display screen 6 to zero.
The absolute pressure sensor 9 is used for detecting the pressure value of the detected space, when the air pressure in the detected space changes, the absolute pressure sensor 9 can convert the pressure change into an electric signal, and the pressure value is compared with a preset standard pressure value to obtain the air pressure change in a certain condition or time, and the air pressure change in a certain time does not need to be connected with an air pipe like a traditional differential pressure sensor, so that the installation and construction procedures are reduced, and the cost is reduced. The absolute pressure sensor 9 may be a SPL06-001 type capacitive pressure sensor.
The gas sensor 16 is used for detecting the gas content and concentration (such as CO, CO 2 、SO 2 、CH 4 Etc.), MMD1003/1013 series of gas sensor modules may be employed.
The temperature and humidity sensor 17 is used to detect the temperature and humidity in the measured space, and an AHT21 temperature and humidity sensor can be used.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model. In addition, the technical solutions between the embodiments may be combined with each other, but must be based on the implementation by those of ordinary skill in the art; when the combination of the technical solutions is contradictory or impossible to realize, it should be considered that the combination of the technical solutions does not exist and is not within the scope of protection claimed by the present utility model.
Claims (6)
1. Novel dynamic pressure monitoring device is characterized in that: including procapsid, back casing, circuit board and sliding closure, procapsid and back casing fixed connection, the circuit board sets up between procapsid and the back casing, the sliding closure slidable sets up in the procapsid outside, be equipped with MCU, display screen, dial switch, reset button, absolute pressure sensor and binding post on the circuit board, display screen, dial switch, reset button, absolute pressure sensor and binding post all are connected with MCU through the electrical signal.
2. The novel dynamic pressure monitoring device of claim 1, wherein: the front shell is provided with a bar-shaped opening and a circular opening, the dial switch is positioned in the bar-shaped opening, and the reset button is positioned in the circular opening.
3. The novel dynamic pressure monitoring device of claim 1, wherein: the bottom of the sliding cover is provided with a first air inlet, and the bottom of the front shell is provided with a second air inlet communicated with the first air inlet.
4. The novel dynamic pressure monitoring device of claim 1, wherein: the rear shell is also provided with a wiring opening, and the wiring terminal is positioned in the wiring opening.
5. The novel dynamic pressure monitoring device of claim 1, wherein: the circuit board is provided with a gas sensor, and the gas sensor is connected with the MCU through an electric signal.
6. The novel dynamic pressure monitoring device of claim 1, wherein: the temperature and humidity sensor is arranged on the circuit board and connected with the MCU through an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221865930.XU CN218916645U (en) | 2022-07-19 | 2022-07-19 | Novel dynamic pressure monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221865930.XU CN218916645U (en) | 2022-07-19 | 2022-07-19 | Novel dynamic pressure monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218916645U true CN218916645U (en) | 2023-04-25 |
Family
ID=86016936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221865930.XU Active CN218916645U (en) | 2022-07-19 | 2022-07-19 | Novel dynamic pressure monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218916645U (en) |
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2022
- 2022-07-19 CN CN202221865930.XU patent/CN218916645U/en active Active
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