CN211122520U - Hand-held CO2 measuring instrument - Google Patents

Abstract

The utility model discloses a hand-held type CO2 measuring apparatu, which comprises a housin, be equipped with integrated circuit board in the casing, integrated circuit board facing is equipped with treater, memory, CO2 sensor and display screen interface module, the treater is connected with memory, CO2 sensor and display screen interface module respectively, CO2 sensor connects the gas acquisition interface, the gas acquisition interface is through the gas production pipe sample gas collection; the front surface of the shell is provided with a display screen, and the display screen is electrically connected with the display screen interface module; the rear wall in the shell is provided with a power supply mechanism, and the power supply mechanism is electrically connected with the integrated circuit board; the rear end fixedly connected with of casing grips the portion, be equipped with symmetrical finger groove on two relative lateral walls of the portion of gripping, the upper surface of the portion of gripping is equipped with a plurality of manipulating keys. The utility model discloses the volume is less, is convenient for grip, and portable and removal can bring great facility for detecting the worker.

Description

Hand-held CO2 measuring instrument

Technical Field

The utility model relates to a test instrument technical field specifically is a hand-held type CO2 measuring apparatu.

Background

The fact that the level of CO2 in buildings can have a significant impact on the health of people living and working in them has been recognized and appreciated by an increasing number of people. Because even small increases in carbon dioxide levels (e.g., over 1200PPM indoors) can lead to yawning and drowsiness.

For this reason, it becomes necessary to monitor the air quality in buildings and enclosed spaces. Typically, carbon dioxide sensors are used as part of hvac or air quality monitoring systems to monitor CO2 levels in both work and residential applications. At present, because the heating and ventilation air conditioner generally can fixed mounting, inconvenient removal, monitoring sensor is far away from the observation point, is difficult to realize real-time observation, has consequently brought great inconvenience for actual detection work. In addition, in the air quality monitoring system, in order to realize the close-range real-time monitoring, a plurality of carbon dioxide sensors need to be arranged, so that the monitoring cost is increased, and the operation is inconvenient.

Disclosure of Invention

The utility model aims at the problem that prior art exists, provide a hand-held type CO2 measuring apparatu, this measuring apparatu is small, portable and removal, easy operation, and the carbon dioxide data of optional position in can the real-time supervision building.

In order to achieve the above object, the utility model adopts the following technical scheme:

a hand-held CO2 measuring instrument comprises a shell, wherein an integrated circuit board is arranged in the shell, a processor, a memory, a CO2 sensor and a display screen interface module are attached to the integrated circuit board, the processor is respectively connected with the memory, the CO2 sensor and the display screen interface module, the CO2 sensor is connected with a gas acquisition interface, and the gas acquisition interface acquires sample gas through a gas production pipe; the front surface of the shell is provided with a display screen, and the display screen is electrically connected with the display screen interface module; the rear wall in the shell is provided with a power supply mechanism, and the power supply mechanism is electrically connected with the integrated circuit board; the rear end fixedly connected with of casing grips the portion, be equipped with symmetrical finger groove on two relative lateral walls of the portion of gripping, the upper surface of the portion of gripping is equipped with a plurality of manipulating keys.

Preferably, a hanging part is arranged at one end of the holding part, which is far away from the shell, and is used for hanging and fixing the measuring instrument on other objects.

Preferably, the inside fixedly connected with antiskid rubber pad in finger groove, the fixed many anti-skidding sand grips that are equipped with evenly distributed of outer wall of antiskid rubber pad.

Preferably, a USB slot for inserting a USB storage device is disposed on a vertical sidewall of one side of the housing.

Preferably, a USB output module is attached to the integrated circuit board, and an output terminal of the USB output module is connected to the USB slot.

Preferably, a winding rod is fixed on the vertical side wall of the other side of the shell, a placing block is fixedly connected to one end, far away from the shell, of the winding rod, and a placing hole is formed in the vertical side wall of one side, close to the holding portion, of the placing block.

Preferably, the gas collection port is disposed at the front end of the housing.

Preferably, the CO2 sensor is an infrared CO2 sensor with the model of GSS COZIR-L P.

Preferably, the processor is an ARM single chip microcomputer, and the ARM single chip microcomputer is an STM32F407 chip.

Preferably, the power supply mechanism is a rechargeable battery.

Further, the memory is an F L ASH memory.

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

(1) the utility model discloses with carbon dioxide sensor, treater, memory integration on same integrated circuit board and encapsulate in the casing, hold the measuring apparatu through the portion of gripping and measure, show the measuring result of carbon dioxide on the display screen through the treater, through the measuring result of memory storage carbon dioxide, connect the host computer through the USB draw-in groove and carry out data interaction, the volume of whole measuring apparatu is less, is convenient for grip, portable and removal can bring great facility for detecting the worker.

(2) The utility model discloses conveniently grip, also can hang with the help of other objects and hold fixedly, the carbon dioxide concentration of optional position in the measurable quantity building need not the multiple department simultaneously and lays the sensor or lay the sensor in the equipment of fixed position, has reduced carbon dioxide monitoring cost, has improved the monitoring convenience.

(3) The utility model discloses a measuring apparatu convenient to carry can use in the environment of removal, and because disposed rechargeable battery, so it can use in building or the indoor environment that the new decoration just does not have the circular telegram.

Drawings

Fig. 1 is a schematic structural diagram of the inside of the housing according to the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the present invention according to an embodiment;

fig. 3 is a schematic structural diagram of the present invention according to an embodiment.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 3, the utility model provides a hand-held type CO2 measuring instrument, including casing 10, be equipped with integrated circuit board 7 in the casing 10, integrated circuit board 7 is last to be equipped with treater 1, memory 2, CO2 sensor 3 and display screen interface module 4, treater 1 is connected with memory 2, CO2 sensor 3 and display screen interface module 4 respectively, CO2 sensor 3 is connected with gas collection interface 17, gas collection interface 17 gathers the sample gas through gas production pipe 11; a display screen 8 is arranged on the front surface of the shell 10, and the display screen 8 is electrically connected with the display screen interface module 4; a power supply mechanism 6 is arranged on the inner rear wall of the shell 10, and the power supply mechanism 6 is electrically connected with the integrated circuit board 7; the rear end of the shell 10 is fixedly connected with a holding part 9, two opposite side walls of the holding part 9 are provided with symmetrical finger grooves 15, and the upper surface of the holding part 9 is provided with a plurality of operation keys. The utility model discloses with CO2 sensor 3, treater 1, memory 2 integrated on same integrated circuit board 7 and encapsulate in casing 10, hold the measuring apparatu through portion of gripping 9 and measure, show the measuring result of carbon dioxide on display screen 8 through treater 1, the volume of whole measuring apparatu is less, is convenient for grip, portable and removal can bring great facility for detecting the worker.

Specifically, the CO2 sensor 3 is an infrared CO2 sensor 3, the model is GSS COZIR-L P, COZIR-L P is the infrared CO2 sensor 3 which is small in size, low in power consumption and high in performance, and the power consumption is low due to the fact that the 2Hz working frequency of the sensor is only 3mW, so that the sensor is very suitable for battery power supply and portable equipment.

Specifically, the gas collection interface 17 is arranged at the front end of the shell 10, the processor 1 is an ARM single chip microcomputer, the ARM single chip microcomputer is an STM32F407 chip, the power supply mechanism 6 is a rechargeable battery, and the memory 2 is an F L ASH memory 2.

Since the height which can be reached by a hand-held measuring instrument is limited, which is not beneficial to the carbon dioxide concentration measurement at some positions on the top of a building, a hanging part 16 is arranged at one end of the holding part 9 of the measuring instrument, which is far away from the shell 10, and is used for hanging and fixing the measuring instrument on other objects, such as a lifting rod and the like, so as to facilitate the carbon dioxide concentration measurement on the top of the building.

In order to prevent the measuring instrument from falling off manually by workers and causing the damage of the instrument, the measuring instrument is fixedly connected with an anti-skid rubber pad in the finger groove 15, the friction between the hand and the holding part 9 of the measuring instrument is increased, and meanwhile, a plurality of anti-skid convex strips which are uniformly distributed are fixedly arranged on the outer wall of the anti-skid rubber pad or a plurality of anti-skid particles are distributed, so that the anti-skid effect is enhanced.

Specifically, a USB slot for inserting a USB storage device is disposed on a vertical sidewall of one side of the housing 10. The measuring instrument stores the measuring result of the carbon dioxide through the memory 2 and is connected with an upper computer through a USB (universal serial bus) clamping groove to perform data interaction.

Specifically, the integrated circuit board 7 is mounted with a USB output module 5, and an output terminal of the USB output module 5 is connected to a USB slot. The processor 1 is connected with the USB output module 5, the measurement result of the carbon dioxide is output through the USB output module 5, and the upper computer is connected with the USB output module 5 through the USB clamping groove and performs data interaction with the processor 1.

When the measuring instrument does not work, in order to place the gas production pipe 11, a winding rod 14 is fixedly arranged on the vertical side wall of the other side of the shell 10, one end, far away from the shell 10, of the winding rod 14 is fixedly connected with a placing block 12, and a placing hole 13 is formed in the vertical side wall of one side, close to the holding part 9, of the placing block 12. After the measurement, twine gas production pipe 11 on winding pole 14 to insert the tip of gas production pipe 11 and place hole 13, avoid gas production pipe 11 to scatter and suffer damage, also portable is accomodate simultaneously.

In the utility model, when in use, the staff holds the holding part 9 through the finger groove 15 with the antiskid rubber pad to prevent the measuring instrument from falling and breaking, the measuring instrument is opened through the operating key on the upper surface of the holding part 9, the gas production pipe 11 is opened to measure the concentration of carbon dioxide aiming at the slit in the building, and the measured value is displayed through the display screen 8; after the use, the gas production pipe 11 is wound on the winding rod 14, and the end part of the gas production pipe 11 is inserted into the placing hole 13, so that the gas production pipe is convenient to store and carry.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A hand-held CO2 measuring instrument is characterized by comprising a shell, wherein an integrated circuit board is arranged in the shell, a processor, a memory, a CO2 sensor and a display screen interface module are attached to the integrated circuit board, the processor is respectively connected with the memory, the CO2 sensor and the display screen interface module, the CO2 sensor is connected with a gas acquisition interface, and the gas acquisition interface acquires sample gas through a gas acquisition pipe; the front surface of the shell is provided with a display screen, and the display screen is electrically connected with the display screen interface module; the rear wall in the shell is provided with a power supply mechanism, and the power supply mechanism is electrically connected with the integrated circuit board; the rear end fixedly connected with of casing grips the portion, be equipped with symmetrical finger groove on two relative lateral walls of the portion of gripping, the upper surface of the portion of gripping is equipped with a plurality of manipulating keys.

2. The hand-held CO2 measuring instrument according to claim 1, wherein a hanging portion is provided at an end of the holding portion away from the housing for hanging and fixing the measuring instrument on an object.

3. The hand-held CO2 measuring instrument according to claim 1, wherein a non-slip rubber pad is fixedly connected to the inside of the finger groove, and a plurality of non-slip ribs are uniformly distributed on the outer wall of the non-slip rubber pad.

4. The hand-held CO2 measuring instrument according to claim 1, wherein a USB slot is provided on a vertical sidewall of one side of the housing for inserting a USB-specification storage device.

5. The handheld CO2 measurement instrument of claim 4, wherein the integrated circuit board has a USB output module attached thereon, and output terminals of the USB output module are connected with a USB slot.

6. The hand-held CO2 measuring instrument according to claim 1, wherein a winding rod is fixed on the vertical side wall of the other side of the housing, a placing block is fixedly connected to one end of the winding rod away from the housing, and a placing hole is formed in the vertical side wall of the placing block close to the holding portion.

7. The hand-held CO2 measuring instrument of claim 1, wherein the gas collection interface is disposed at a front end of the housing.

8. The hand-held CO2 measuring instrument according to claim 1, wherein the CO2 sensor is an infrared CO2 sensor, model GSS COZIR-L P.

9. The hand-held CO2 measurement instrument of claim 1, wherein the processor is an ARM single chip microcomputer, and the ARM single chip microcomputer is an STM32F407 chip.

10. The hand-held CO2 measuring instrument of claim 1, wherein the power supply mechanism is a rechargeable battery.

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