CN212379281U - Portable smokemeter all-in-one machine - Google Patents

Abstract

The utility model relates to a portable smoke meter all-in-one, which comprises a housin, be provided with the main display screen on the casing, the top of casing is fixed with portable area, the internally mounted of casing has smoke detection module, smoke detection module is including advancing the flue, the flue pipe, the middle part of advancing flue and flue pipe is connected, the both ends of flue pipe are provided with light source emission unit respectively, light receiving element, all be provided with the drainage chamber between the both ends mouth of pipe of light source emission unit and light receiving element and flue pipe, the drainage chamber is suitable for and inhales in the flue gas flue pipe in will advancing the flue. The portable smoke meter all-in-one machine is simple and compact in structure, convenient to carry and accurate in measurement.

Description

Portable smokemeter all-in-one machine

Technical Field

The utility model belongs to the technical field of the smokemeter technique and specifically relates to a portable smokemeter all-in-one is related to.

Background

With the continuous development of economy, the automobile industry is increasing, and the pollution caused by automobile exhaust emission is increasing, so that the state has come out of a corresponding policy for managing the automobile exhaust emission, and the automobile exhaust must meet certain standards. The smoke intensity is not only an important index for evaluating the air pollution degree of the diesel engine, but also an important parameter for evaluating whether the combustion process of the diesel engine is complete. The smoke meter is an instrument for measuring the smoke degree in the exhaust gas of an automobile, and is mainly used for measuring the exhaust gas of a diesel engine.

At present, smoke meters mainly comprise a filter paper smoke meter and a transmission smoke meter, wherein the transmission smoke meter uses the physical action of light attenuation as a working principle, one beam of light is shielded by particles of exhaust gas, the intensity of the light beam is inversely proportional to the length of the light beam, and the pollution degree of the exhaust gas to the environment is determined by measuring the absorption degree of the exhaust gas to the light. But current transmission-type smokemeter structure is complicated, inconvenient carrying, advances simultaneously flue and smoke cavity and can mix together, and the detection data is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a simple structure, measure accurate portable smokemeter all-in-one.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a portable smoke meter all-in-one, includes the casing, be provided with the main display screen on the casing, the top of casing is fixed with portable area, the internally mounted of casing has smog detection module, smog detection module is including advancing flue, smoke chamber pipe, advance the flue with smoke chamber pipe's middle part is connected, smoke chamber pipe's both ends are provided with light source emission unit, light receiving element respectively, light source emission unit with light receiving element with all be provided with the drainage chamber between smoke chamber pipe's the both ends mouth of pipe, the drainage chamber be suitable for with smoke in advancing the flue inhales in the smoke chamber pipe.

Preferably, in the above-mentioned portable smoke meter all-in-one machine, one side of the light source emission unit and one side of the light receiving unit close to the smoke tube are both provided with a protective lens, and the protective lenses are suitable for preventing smoke in the smoke tube from entering the light source emission unit and the light receiving unit.

Preferably, the portable smoke meter all-in-one machine is characterized in that a signal processing module is installed inside the casing and is suitable for processing received signals.

Preferably, the portable smoke meter all-in-one machine is characterized in that the shell is provided with a falling-preventing hook, and the falling-preventing hook is suitable for connecting a rope and a lock catch to prevent falling and breaking.

Preferably, the portable smoke meter all-in-one machine is characterized in that a differential pressure sensor is arranged in the smoke cavity pipe, the differential pressure sensor is suitable for feeding back a pressure value in the smoke cavity pipe to the signal processing module, and the signal processing module controls the pressure in the smoke cavity pipe to be within a standard range.

Preferably, the portable smoke meter all-in-one machine is characterized in that the shell is provided with an antenna which is suitable for transmitting and receiving wireless signals and is connected with the terminal control equipment.

Preferably, the portable smoke meter all-in-one machine is characterized in that a rotating speed testing interface is arranged on the shell and is suitable for being connected with external equipment to test the rotating speed of the engine.

Preferably, the portable smoke meter all-in-one machine is characterized in that the shell is provided with an oil temperature testing interface which is suitable for testing the temperature of oil in the engine.

The utility model has the advantages that: this portable smoke meter all-in-one will advance the flue and separately set up with the smoke chamber pipe, it is intraductal that flue gas in the flue gets into the smoke chamber from smoke chamber pipe middle part position, and the drainage chamber and the fan size parameter of smoke chamber pipe both sides are all unanimous, it is the same to make two drainage chambers to the negative pressure drainage effect of flue gas, and the differential pressure sensor control smoke chamber pipe top fan rotational speed through setting up in the smoke chamber pipe, thereby control the intraductal atmospheric pressure value of smoke chamber, consequently the flue gas gets into smoke chamber pipe back flue gas concentration degree more even, help improving the measuring accuracy. The portable smoke meter all-in-one machine is simple and compact in structure, convenient to carry and accurate in measurement.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a right side view of the present invention;

fig. 4 is an exploded view of the present invention;

fig. 5 is an exploded view of another angle of the present invention;

FIG. 6 is a schematic structural view of a smoke detection module;

FIG. 7 is a schematic view of the protective lens and the calibration lens of FIG. 6 after being removed;

FIG. 8 is a top view of FIG. 7;

fig. 9 is a bottom view of fig. 7.

In the drawings, the components represented by the respective reference numerals are listed below:

1. support the base, 2, the main casing body, 3, smog detection module, 31, advance the flue, 32, the switching chamber, 33, the flue pipe, 34, the drainage chamber, 35, the fan, 36, the fin, 37, the protection lens mounting bracket, 38, the light source transmitting unit, 39, the light receiving element, 310, mark the lens mounting bracket, 311, the protection lens, 312, mark the lens, 313, advance the mouth, 314, the exhaust port, 4, signal processing module, 5, the switch, 6, the electric quantity display screen, 7, the interface that charges, 8, rotational speed test interface, 9, the oil temperature test interface, 10, hand-held strip, 11, the antenna, 12, temperature and humidity sensor, 13, prevent falling the couple, 14, the OBD interface, 15, the front panel, 16, the rear panel, 17, the main display screen, 18, the lithium cell, 19, battery mounting bracket, 20, first rectangular hole, 21, the second rectangular hole.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1-5, a portable smoke meter all-in-one machine comprises a shell, wherein a plurality of heat dissipation holes are formed in the shell, and heat dissipation is facilitated. The housing comprises a main housing 2, a front panel 15, a rear panel 16, and a support base 1 is mounted to the bottom of the main housing 2. The portable belt 10 is fixed on the top of the main shell 2, which is convenient for carrying. The inside of the shell is provided with a smoke detection module 3 and a signal processing module 4. The top of smoke detection module 3 is provided with battery mounting bracket 19, and battery mounting bracket 19 is fixed at the inner wall top of main casing body 2, installs lithium cell 18 on the battery mounting bracket 19, and lithium cell 18 is used for supplying power for whole device.

As shown in fig. 6-9, the smoke detection module 3 includes a smoke inlet 31 and a smoke chamber 33, the middle of the smoke chamber 33 is connected with a transition chamber 32, and the smoke inlet 31 is connected with the transition chamber 32. The flue inlet 31 communicates with the interior of the flue chamber pipe 33. A heat sink 36 is mounted to the top of the adaptor cavity 32, the heat sink 36 adapted to reduce the temperature of the adaptor cavity 32.

Both ends of the smoke cavity pipe 33 are connected with the drainage cavities 34, the fans 35 are installed at the tops of the two drainage cavities 34, the smoke outlets 314 are arranged at the bottoms of the two drainage cavities 34, and the fans 35 are suitable for discharging smoke entering the smoke channel 31 from the smoke outlets 314. One ends of the two drainage cavities 34 far away from the smoke cavity tube 33 are respectively connected with a light source emitting unit 38 and a light ray receiving unit 39. The light source emitting unit 38 comprises a laser emitter and the light receiving unit 39 comprises a laser receiver adapted to receive laser radiation emitted by the laser emitter. Specifically, the light source emitting unit 38 and the light receiving unit 39 are each provided inside with a convex lens, and the two convex lenses are used to change the path of light. The convex lens built in the light source emitting unit 38 is used for collecting the laser ray emitted from the laser emitter into a parallel light beam, and the diameter of the light beam is smaller than the inner diameter of the smoke chamber tube 33. The light beam passes through the smoke chamber tube 33 (without contacting the inner wall of the smoke chamber tube 33) to the light receiving unit 39, and a convex lens built in the light receiving unit 39 focuses the parallel light beam into a spot, which is received by a laser receiver in the light receiving unit 39. A differential pressure sensor is arranged in the smoke cavity pipe 33 and is suitable for feeding back the pressure value in the smoke cavity pipe 33 to the signal processing module 4, and the rotating speed of the fan 35 is controlled by the signal processing module 4, so that the pressure in the smoke cavity pipe 33 is controlled within a standard range, and accurate measurement is facilitated.

The protective lens mounting rack 37 is embedded in the inner part of one side of the light source emitting unit 38 and the light receiving unit 39 close to the smoke cavity pipe 33, the protective lens 311 is mounted on the protective lens mounting rack 37, and the protective lens 311 is suitable for preventing smoke in the smoke cavity pipe 33 from entering the inner parts of the light source emitting unit 38 and the light receiving unit 39. The protective lens mount 37 is slidably inserted inside the light source emitting unit 38 and the light receiving unit 39, facilitating cleaning and replacement of the protective lens 311. A calibration lens mounting bracket 310 is embedded in the drainage cavity 34 on one side of the light receiving unit 39, a calibration lens 312 is mounted on the calibration lens mounting bracket 310, and the calibration lens 312 is used for calibrating the measurement precision. The calibration lens mount 310 is slidably inserted into the drainage lumen 34 to facilitate cleaning and replacement of the calibration lens 312. Two first rectangular holes 20 are formed in the rear panel 16, and the protection lens mounting bracket 37 penetrates through the first rectangular holes 20, so that the protection lens 311 can be conveniently and directly taken out for replacement and cleaning. The smoke inlet 313 is provided on the left side panel of the main casing 2.

When the automobile exhaust is measured, the smoke enters the smoke inlet 31 from the smoke inlet 313, and then enters the smoke cavity pipe 33 from the adapting cavity 32, because the adapting cavity 32 is positioned in the middle of the smoke cavity pipe 33, the size parameters of the drainage cavities 34 on the two sides of the smoke cavity pipe 33 and the size parameters of the fan 35 are consistent, and the negative pressure drainage effects of the two drainage cavities 34 on the smoke are the same, the smoke density is more uniform after the smoke enters the smoke cavity pipe 33. The light emitted from the light source emitting unit 38 is collected into a parallel beam of light having a diameter smaller than the inner diameter of the smoke chamber tube 33 by the optical principle characteristic of the convex lens built therein. The light beam passes through the smoke chamber tube 33 (without contacting the inner wall of the smoke chamber tube 33) to the light receiving unit 39, and the light receiving unit 39 focuses the parallel light beam into a spot by the built-in convex lens principle, and the spot is received by the laser receiver in the light receiving unit 39. The emitted light and the received light are compared by an analysis process of the signal processing module 4. Shading is 0% (full bright) when there is no middle shading, and 100% (full dark) when the middle is completely shaded. And judging whether the exhaust emission is qualified or not according to the light attenuation.

As shown in fig. 1 to 5, a main display 17 is mounted on the front panel 15. The left panel of the main shell body 2 is provided with an antenna 11, a temperature and humidity sensor 12, an anti-falling hook 13 and an OBD interface 14, wherein the antenna 11 is used for transmitting and receiving wireless signals and is used for being connected with terminal control equipment (a mobile phone or a tablet), and various parameters and test items of the device can be set through the terminal control equipment. The temperature and humidity sensor 12 is used to collect temperature and appropriate information of the external environment. The falling-preventing hook 13 can be connected with a rope and a lock catch to prevent falling and breaking. The OBD interface 14 is used to connect an OBD interface reserved on the vehicle, so as to extract data in the vehicle system, such as: oil temperature, rotational speed, and other data. Be provided with electric quantity display screen 6, switch 5, charge interface 7, rotational speed test interface 8, oil temperature test interface 9 on the right side panel of main casing body 2. The electric quantity display screen 6 is used for displaying the electric quantity of the lithium battery 18; the switch 5 is used for controlling the opening and closing of the whole device; the charging interface 7 is used for connecting external alternating current to charge the lithium battery 18; the rotating speed testing interface 8 is used for connecting external equipment to test the rotating speed of the engine; the oil temperature test interface 9 is used for testing the temperature of oil in the engine. The externally collected signals are transmitted to the signal processing module 4, and the test result is displayed on the main display screen 17 through conversion operation. The bottom of the main casing 2 is provided with two second rectangular holes 21, and the two smoke outlets 314 are respectively opposite to the second rectangular holes 21 for discharging smoke. The calibration lens mounting frame 310 is inserted into the second rectangular hole 21 from the bottom, and a notch is formed in the side edge of the second rectangular hole 21, so that the calibration lens mounting frame 310 can be conveniently clamped, and the calibration lens 312 can be conveniently and directly taken out for replacement and cleaning.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (8)

1. The utility model provides a portable smokemeter all-in-one which characterized in that: the portable smoke detection device comprises a housing, be provided with main display screen (17) on the casing, the top of casing is fixed with hand-strap (10), the internally mounted of casing has smog detection module (3), smog detection module (3) are including advancing flue (31), smoke chamber pipe (33), advance flue (31) with the middle part of smoke chamber pipe (33) is connected, the both ends of smoke chamber pipe (33) are provided with light source emission unit (38), light receiving element (39) respectively, light source emission unit (38) with light receiving element (39) with all be provided with drainage chamber (34) between the both ends mouth of pipe of smoke chamber pipe (33), drainage chamber (34) be suitable for with the flue gas that advances in flue (31) inhales in smoke chamber pipe (33).

2. The portable smoke meter all-in-one machine according to claim 1, wherein: and protective lenses (311) are arranged on one sides of the light source emitting unit (38) and the light receiving unit (39) close to the smoke cavity pipe (33), and the protective lenses (311) are suitable for preventing smoke in the smoke cavity pipe (33) from entering the light source emitting unit (38) and the light receiving unit (39).

3. The portable smoke meter all-in-one machine according to claim 1, wherein: and a signal processing module (4) is arranged in the shell and is suitable for processing the received signals.

4. The portable smoke meter all-in-one machine according to claim 1, wherein: the shell is provided with a falling-preventing hook (13), and the falling-preventing hook (13) is suitable for being connected with a rope and a lock catch to prevent falling and breaking.

5. The portable smoke meter all-in-one machine according to claim 3, wherein: a differential pressure sensor is arranged in the smoke cavity pipe (33), the differential pressure sensor is suitable for feeding back the pressure value in the smoke cavity pipe (33) to the signal processing module (4), and the signal processing module (4) is used for controlling the pressure in the smoke cavity pipe (33) to be within a standard range.

6. The portable smoke meter all-in-one machine according to claim 1, wherein: the shell is provided with an antenna (11) which is suitable for transmitting and receiving wireless signals and is connected with the terminal control equipment.

7. The portable smoke meter all-in-one machine according to claim 1, wherein: the shell is provided with a rotating speed testing interface (8), and the rotating speed testing interface (8) is suitable for being connected with external equipment to test the rotating speed of the engine.

8. The portable smoke meter all-in-one machine according to claim 1, wherein: the shell is provided with an oil temperature test interface (9) which is suitable for testing the temperature of oil in the engine.

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