CN221299297U - Automobile back pressure measuring device - Google Patents
Automobile back pressure measuring device Download PDFInfo
- Publication number
- CN221299297U CN221299297U CN202322777351.0U CN202322777351U CN221299297U CN 221299297 U CN221299297 U CN 221299297U CN 202322777351 U CN202322777351 U CN 202322777351U CN 221299297 U CN221299297 U CN 221299297U
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- heat dissipation
- shell
- buffer tube
- dissipation buffer
- pressure sensor
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 63
- 238000005259 measurement Methods 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 15
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000007689 inspection Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 238000002955 isolation Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an automobile backpressure measurement device, which comprises a shell, a pressure sensor and a heat dissipation buffer tube, wherein the pressure sensor and the heat dissipation buffer tube are arranged on the inner side of the shell, the pressure sensor is attached to the side wall of the shell and is arranged at one end of the heat dissipation buffer tube, and the other end of the heat dissipation buffer tube extends to the side wall of the shell; the outer side of the shell is provided with a hose and a second connector, the second connector is arranged at the end part of the hose, and the end part of the hose, which is far away from the second connector, is connected with a heat dissipation buffer tube; the utility model is convenient for monitoring the resistance of gas movement in real time with higher precision, obtaining the exhaust back pressure data of the automobile, storing the monitoring data, facilitating the inspection of maintenance personnel and providing data reference for the automobile maintenance.
Description
Technical Field
The utility model relates to the technical field of automobile backpressure measurement, in particular to an automobile backpressure measurement device.
Background
With the increase of the service time, the exhaust system is blocked due to the use of fuel oil and engine oil, so that the exhaust back pressure of the automobile is increased, the fuel consumption is influenced by the excessive exhaust back pressure, and the service life of the exhaust treatment equipment (DOC DPF SCR ASC) is reduced. The existing automobile exhaust system is not provided with a data monitoring system, the back pressure of the automobile is required to be checked manually and regularly, accurate data is required for back pressure checking, and meanwhile, data comparison and reference are required for maintenance, so that the use cost of the automobile is increased.
The backpressure meter for detecting the backpressure of the automobile exhaust system is of a pointer structure, and the error is overlarge. For example, at 2500 rpm, the pointer-type backpressure meter cannot measure the backpressure in the blocked state due to errors, i.e. the pointer-type backpressure meter can only read the blocked state under the severity, so the basis of maintenance reference is naturally blank. When the exhaust temperature is up to 200 ℃, the pointer type backpressure meter is damaged, namely, at the moment of data occurrence, the pointer type backpressure meter cannot record data, and finally, data reference cannot be provided for maintenance. For example, an exhaust back pressure meter for detecting an automobile three-way catalyst disclosed in chinese patent publication No. CN204572149U comprises a pressure meter and an adapter connected with the pressure meter, a connecting pipeline is arranged on the adapter, one end of the connecting pipeline, which is far away from the adapter, is provided with a connector, the connector is provided with threads, the threads are matched with threads of an oxygen sensor connecting hole of the three-way catalyst, the pressure meter of the patent adopts a pointer type, the temperature is too high, the pointer type pressure meter can be damaged, data cannot be recorded, and no reference of the data is blind repair.
Therefore, providing an automobile exhaust back pressure measuring device with high measurement accuracy and capable of providing maintenance data record comparison has been a problem worthy of research
Disclosure of utility model
The utility model aims to provide an automobile back pressure measuring device, which aims to solve the problems that the existing automobile exhaust back pressure measuring meter is low in measuring precision and can not provide maintenance reference data in some cases.
The utility model is realized in the following way: the automobile back pressure measuring device comprises a shell, a pressure sensor and a heat dissipation buffer tube, wherein the pressure sensor and the heat dissipation buffer tube are arranged on the inner side of the shell, the pressure sensor is attached to the side wall of the shell and is arranged at one end of the heat dissipation buffer tube, and the other end of the heat dissipation buffer tube extends to the side wall of the shell; the outer side of the shell is provided with a hose and a second connector, the second connector is arranged at the end part of the hose, and the end part of the hose, which is far away from the second connector, is connected with the heat dissipation buffer tube.
Preferably, a memory and a display meter are further arranged on the inner side of the shell, and the pressure sensor and the display meter are electrically connected with the memory.
Preferably, a display screen and a plurality of adjusting keys are arranged on the outer side face of the shell, and the display screen is electrically connected with the display meter.
Preferably, the heat dissipation buffer tube is an aluminum tube or a copper tube, and the heat dissipation buffer tube is disc-shaped.
Preferably, the inner side of the shell is provided with a plurality of isolation rods, the isolation rods are arranged in a spiral mode and perpendicular to the side wall of the shell, and the heat dissipation buffer tube is supported on the isolation rods.
Preferably, a connecting pipe is arranged at the connecting part of the heat dissipation buffer pipe and the pressure sensor, the end part of the heat dissipation buffer pipe extending to the shell is provided with a first connecting joint, and the first connecting joint is connected with the hose.
Preferably, the pressure sensor adopts a high-precision micro pressure difference sensor, and the model is A11C-100K-G2; the display table is set as a digital display table.
Compared with the prior art, the utility model has the beneficial effects that:
1. The utility model is convenient for monitoring the resistance of gas movement in real time with higher precision, obtaining the exhaust back pressure data of the automobile, storing the monitoring data, facilitating the inspection of maintenance personnel and providing data reference for the automobile maintenance.
2. The pressure sensor is set as a micro-pressure high-precision differential pressure sensor, and can be used for measuring when the exhaust back pressure of the automobile changes slightly, so that the measurement precision of the device is improved, and the influence on the accuracy of measurement data due to the existence of errors is avoided.
3. According to the utility model, the heat dissipation buffer tube is arranged into a disc structure, so that the gas moving path is prolonged, the support is provided for reducing the temperature of the gas, and the high-temperature gas is prevented from influencing the measurement precision and causing equipment damage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic view of the structure of the inside of the present utility model.
In the figure: 1. a housing; 2. a first connector; 3. a hose; 4. a second connector; 5. a display screen; 6. an adjustment key; 7. a pressure sensor; 8. a connecting pipe; 9. a heat dissipation buffer tube; 10. a display table; 11. a memory.
Detailed Description
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following is further described with reference to the accompanying drawings and specific examples:
example 1
As shown in fig. 1 and 2, the automobile back pressure measuring device comprises a shell 1, a pressure sensor 7 and a heat dissipation buffer tube 9, wherein the pressure sensor 7 and the heat dissipation buffer tube 9 are arranged on the inner side of the shell 1, the pressure sensor 7 is attached to the side wall of the shell 1 and is arranged at one end of the heat dissipation buffer tube 9, and the other end of the heat dissipation buffer tube 9 extends to the side wall of the shell 1. A memory 11 and a display meter 10 are also arranged on the inner side of the shell 1, and the pressure sensor 7 and the display meter 10 are electrically connected with the memory 11. The measuring device is arranged on an automobile, one end of the heat dissipation buffer tube 9, which is far away from the pressure sensor 7, is connected with an exhaust system of the automobile, and gas exhausted by the engine enters the pressure sensor 7 through the heat dissipation buffer tube 9, the resistance of gas movement is monitored in real time through the pressure sensor 7, and monitored data are transmitted to the memory 11 in real time, so that a worker can check the data during automobile maintenance, and a reference is provided for maintenance.
In order to improve the monitoring precision of the device, the pressure sensor 7 adopts a high-precision micro-pressure difference sensor, the model is A11C-100K-G2, the precision is high, and when the exhaust back pressure of the automobile changes slightly, the measurement precision of the device is improved, and the influence on the accuracy of measurement data due to the existence of errors is avoided.
As shown in fig. 1, in order to facilitate maintenance personnel to view the monitored historical data, a display screen 5 and a plurality of adjusting keys 6 are arranged on the outer side surface of the shell 1, the display screen 5 is a transparent plate and is electrically connected with a display meter 10, and the display meter 10 is a digital display meter. The staff can see the historical data displayed by the digital display through the display screen 5.
As shown in fig. 2, in order to connect the heat dissipation buffer tube 9 to the exhaust system of the automobile, a hose 3 and a second connector 4 are provided outside the housing 1, the second connector 4 is provided at an end of the hose 3, and an end of the hose 3 away from the second connector 4 is connected to the heat dissipation buffer tube 9. The hose 3 can deform under the action of external force, so that the convenience of connection of the heat dissipation buffer tube 9 and an automobile exhaust system is improved.
As shown in fig. 2, a connection pipe 8 is provided at a portion where the heat dissipation buffer pipe 9 and the pressure sensor 7 are connected, and a first connection head 2 is provided at an end portion of the heat dissipation buffer pipe 9 extending to the housing 1, the first connection head 2 being connected to the hose 3. The connecting pipe 8 and the first connecting joint 2 are arranged, convenience is brought to quick assembly disassembly of the heat dissipation buffer pipe 9, the pressure sensor 7 and the hose 3 according to requirements, and the flexibility of the device is improved.
As shown in fig. 2, in order to avoid the influence of high-temperature gas on measurement accuracy and to avoid damage to equipment, the heat dissipation buffer tube 9 is provided as an aluminum tube or a copper tube, the heat dissipation buffer tube 9 is provided in a disc shape, and the curled heat dissipation buffer tube 9 is not in contact. Meanwhile, a radiating hole is arranged on the side wall of the shell 1, and the radiating hole is opposite to the disc-shaped radiating buffer tube 9. When the air inside and outside the shell 1 circulates, the heat of the heat dissipation buffer tube 9 is taken away, and the temperature of the air is reduced. And the heat dissipation buffer tube 9 is provided with a disc-shaped structure, so that a gas circulation path is increased, and convenience is brought to reducing the temperature of gas.
Example 2
As shown in fig. 1 and 2, the automobile back pressure measuring device comprises a shell 1, a pressure sensor 7 and a heat dissipation buffer tube 9, wherein the pressure sensor 7 and the heat dissipation buffer tube 9 are arranged on the inner side of the shell 1, the pressure sensor 7 is attached to the side wall of the shell 1 and is arranged at one end of the heat dissipation buffer tube 9, and the other end of the heat dissipation buffer tube 9 extends to the side wall of the shell 1. A memory 11 and a display meter 10 are also arranged on the inner side of the shell 1, and the pressure sensor 7 and the display meter 10 are electrically connected with the memory 11. The measuring device is arranged on an automobile, one end of the heat dissipation buffer tube 9, which is far away from the pressure sensor 7, is connected with an exhaust system of the automobile, and gas exhausted by the engine enters the pressure sensor 7 through the heat dissipation buffer tube 9, the resistance of gas movement is monitored in real time through the pressure sensor 7, and monitored data are transmitted to the memory 11 in real time, so that a worker can check the data during automobile maintenance, and a reference is provided for maintenance.
In order to improve the monitoring precision of the device, the pressure sensor 7 adopts a high-precision micro-pressure difference sensor, the model is A11C-100K-G2, the precision is high, and when the exhaust back pressure of the automobile changes slightly, the measurement precision of the device is improved, and the influence on the accuracy of measurement data due to the existence of errors is avoided.
As shown in fig. 1, in order to facilitate maintenance personnel to view the monitored historical data, a display screen 5 and a plurality of adjusting keys 6 are arranged on the outer side surface of the shell 1, the display screen 5 is a transparent plate and is electrically connected with a display meter 10, and the display meter 10 is a digital display meter. The staff can see the historical data displayed by the digital display through the display screen 5.
As shown in fig. 2, in order to connect the heat dissipation buffer tube 9 to the exhaust system of the automobile, a hose 3 and a second connector 4 are provided outside the housing 1, the second connector 4 is provided at an end of the hose 3, and an end of the hose 3 away from the second connector 4 is connected to the heat dissipation buffer tube 9. The hose 3 can deform under the action of external force, so that the convenience of connection of the heat dissipation buffer tube 9 and an automobile exhaust system is improved.
As shown in fig. 2, a connection pipe 8 is provided at a portion where the heat dissipation buffer pipe 9 and the pressure sensor 7 are connected, and a first connection head 2 is provided at an end portion of the heat dissipation buffer pipe 9 extending to the housing 1, the first connection head 2 being connected to the hose 3. The connecting pipe 8 and the first connecting joint 2 are arranged, convenience is brought to quick assembly disassembly of the heat dissipation buffer pipe 9, the pressure sensor 7 and the hose 3 according to requirements, and the flexibility of the device is improved.
As shown in fig. 2, in order to avoid the influence of high-temperature gas on measurement accuracy and to avoid damage to equipment, the heat dissipation buffer tube 9 is provided as an aluminum tube or a copper tube, the heat dissipation buffer tube 9 is provided in a disc shape, and the curled heat dissipation buffer tube 9 is not in contact. Meanwhile, a radiating hole is arranged on the side wall of the shell 1, and the radiating hole is opposite to the disc-shaped radiating buffer tube 9. When the air inside and outside the shell 1 circulates, the heat of the heat dissipation buffer tube 9 is taken away, and the temperature of the air is reduced. And the heat dissipation buffer tube 9 is provided with a disc-shaped structure, so that a gas circulation path is increased, and convenience is brought to reducing the temperature of gas.
In order to stably place the heat dissipation buffer tube 9 in a disc shape in the shell 1, a plurality of isolation rods are arranged on the inner side of the shell 1 and are arranged in a spiral mode perpendicular to the side wall of the shell 1, and the heat dissipation buffer tube 9 is supported on the isolation rods.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The automobile backpressure measurement device is characterized by comprising a shell (1), a pressure sensor (7) and a heat dissipation buffer tube (9), wherein the pressure sensor (7) and the heat dissipation buffer tube (9) are arranged on the inner side of the shell (1), the pressure sensor (7) is attached to the side wall of the shell (1) and is arranged at one end of the heat dissipation buffer tube (9), and the other end of the heat dissipation buffer tube (9) extends to the side wall of the shell (1); a hose (3) and a second connector (4) are arranged on the outer side of the shell (1), the second connector (4) is arranged at the end part of the hose (3), and the end part of the hose (3) far away from the second connector (4) is connected with a heat dissipation buffer tube (9); the inner side of the shell (1) is also provided with a memory (11) and a display meter (10), and the pressure sensor (7) and the display meter (10) are electrically connected with the memory (11).
2. The automobile back pressure measuring device according to claim 1, wherein a display screen (5) and a plurality of adjusting keys (6) are arranged on the outer side face of the shell (1), and the display screen (5) is electrically connected with a display meter (10).
3. The automobile back pressure measuring device according to claim 1, wherein the heat dissipation buffer tube (9) is an aluminum tube or a copper tube, and the heat dissipation buffer tube (9) is disc-shaped.
4. The back pressure measuring device for the automobile according to claim 3, wherein a plurality of isolating rods are arranged on the inner side of the shell (1), the isolating rods are arranged in a spiral mode and perpendicular to the side wall of the shell (1), and the heat dissipation buffer tube (9) is supported on the isolating rods.
5. The automobile back pressure measuring device according to claim 4, wherein a connecting pipe (8) is arranged at a position where the heat dissipation buffer pipe (9) is connected with the pressure sensor (7), a first connecting head (2) is arranged at the end part of the heat dissipation buffer pipe (9) extending to the shell (1), and the first connecting head (2) is connected with the hose (3).
6. An automobile backpressure measuring device according to claim 2, wherein said pressure sensor (7) is a high-precision micro-differential pressure sensor; the display table (10) is arranged as a digital display table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777351.0U CN221299297U (en) | 2023-10-17 | 2023-10-17 | Automobile back pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777351.0U CN221299297U (en) | 2023-10-17 | 2023-10-17 | Automobile back pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299297U true CN221299297U (en) | 2024-07-09 |
Family
ID=91734679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322777351.0U Active CN221299297U (en) | 2023-10-17 | 2023-10-17 | Automobile back pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299297U (en) |
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2023
- 2023-10-17 CN CN202322777351.0U patent/CN221299297U/en active Active
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