Oxygen sensor for monitoring tail gas emission

Abstract

The utility model discloses an oxygen sensor for tail gas emission monitoring, and particularly relates to the technical field of tail gas emission monitoring, the oxygen sensor comprises a mounting box and an oxygen sensor main body, the oxygen sensor main body is fixedly mounted at the top end in the mounting box, one side of the mounting box is fixedly communicated with a connecting pipe, and the other end of the connecting pipe is fixedly communicated with an insertion sleeve; an inflation assembly is arranged on the plug bush and comprises a first air pipe, a high-temperature-resistant air bag, a first valve and a connector, and one end of the first air pipe penetrates through the plug bush and is fixedly communicated with the high-temperature-resistant air bag. The tail gas pipe is extruded through the high-temperature-resistant air bag, so that the inserting sleeve and the tail gas pipe are fixed, tail gas of a vehicle enters the mounting box through the inserting sleeve and the connecting pipe, the oxygen sensor main body works to detect the oxygen content in the tail gas, and air in the high-temperature-resistant air bag can be exhausted by opening the first valve in a similar way; the tail gas detection device is simple in structure and convenient to carry, and the detection efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of exhaust emission monitoring technology, and more specifically, to an oxygen sensor for exhaust emission monitoring. Background Technology

[0002] An oxygen sensor for exhaust emission monitoring is a device used to detect the oxygen content in vehicle exhaust. It plays a crucial role in vehicle emission control and environmental protection. The oxygen sensor uses a zirconia ceramic sensing element to measure the oxygen potential in the exhaust pipe and calculates the corresponding oxygen concentration based on the principle of chemical equilibrium. Existing exhaust emission monitoring devices lack a support frame for the detection tube, requiring operators to hold the detection head by hand, resulting in high workload and inconvenience.

[0003] A search revealed that Chinese patent CN218496861U discloses a forklift exhaust emission monitoring device. In use, two levers are held and rotated in opposite directions, causing the levers to rotate the arc-shaped gear ring. This pulls the rack downwards, preventing the iron plate from adhering to the magnetic plate, allowing the lifting column to slide up and down. The height of the suction nozzle is then adjusted to align with the vehicle's exhaust pipe. After adjustment, the levers are released, and the iron plate's secure adhesion to the magnetic plate fixes the lifting column in place, allowing the suction nozzle to be inserted into the forklift's exhaust pipe. Exhaust emissions can then be detected by the exhaust gas detector itself. Therefore, this device eliminates the need for manual handling of the suction nozzle, reducing workload. Furthermore, the adjustable nozzle height accommodates vehicles of different heights, making operation more convenient.

[0004] When using the aforementioned exhaust emission monitoring equipment, the base is moved and the nozzle is inserted into the vehicle's exhaust pipe. The exhaust gas is then detected by the exhaust gas detector itself. However, the entire monitoring equipment is large and inconvenient to carry. Moving and installing it takes a lot of time, which affects the efficiency of the detection. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an oxygen sensor for monitoring exhaust emissions, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oxygen sensor for monitoring exhaust emissions, comprising a mounting box and an oxygen sensor body, wherein the oxygen sensor body is fixedly installed at the top of the inside of the mounting box, a connecting pipe is fixedly connected to one side of the mounting box, and a socket is fixedly connected to the other end of the connecting pipe, an inflation assembly is provided on the socket, the inflation assembly includes a first air pipe, a high-temperature resistant airbag, a first valve and a connector, one end of the first air pipe passes through the socket and is fixedly connected to the high-temperature resistant airbag, and the other end of the first air pipe is fixedly connected to the connector, the high-temperature resistant airbag is fixedly installed inside the socket, and the first valve is fixedly installed on the first air pipe.

[0007] Furthermore, a filter plate is movably disposed on the side of the oxygen sensor body near the connecting pipe, and the filter plate is fixedly connected inside the mounting box.

[0008] As can be seen, in the above technical solution, the filter plate filters dust in the exhaust gas.

[0009] Furthermore, a second air pipe is fixedly connected to the first air pipe, a second valve is fixedly installed on the second air pipe, and a piston cylinder is fixedly connected to the bottom end of the second air pipe. The piston cylinder is fixedly connected to the top of the inside of the mounting box, and a piston rod is movably installed on the piston cylinder.

[0010] Furthermore, a cleaning assembly is provided at the bottom of the piston rod. The cleaning assembly includes a brush plate, a baffle, a side plate, and a gasket. One side of the side plate is fixedly connected to the baffle, and the top of the side plate is fixedly connected to the piston rod.

[0011] Furthermore, the brush plate is fixedly installed on the other side of the baffle, and the top of the gasket is fixedly connected to the baffle.

[0012] Furthermore, a sliding plate is fixedly connected to one side of the baffle and at both the front and rear sides of the side plate. A sliding rod is movably installed on each of the two sliding plates, and the top and bottom ends of the two sliding rods are fixedly connected to the mounting box.

[0013] As can be seen, in the above technical solution, the baffle drives the two slide plates to slide on the two slide bars respectively, thereby limiting the deflection of the baffle.

[0014] Furthermore, the bottom of the mounting box is movably connected to a first box cover via a snap fastener, and the rear side of the mounting box is movably connected to a second box cover via a snap fastener.

[0015] As can be seen, in the above technical solution, the first box cover is opened and the dust inside the installation box is cleaned, the second box cover is opened, and the oxygen sensor body is operated.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model uses a high-temperature resistant airbag to compress the exhaust pipe, thereby fixing the insert to the exhaust pipe. The vehicle's exhaust gas enters the installation box through the insert and connecting pipe. The oxygen sensor body works to detect the oxygen content in the exhaust gas. Similarly, opening the first valve can release the air in the high-temperature resistant airbag, thereby releasing the fixation between the insert and the exhaust pipe. The structure is simple, easy to carry, and effectively improves the detection efficiency.

[0018] 2. This utility model filters dust in exhaust gas through a filter screen. The first valve is closed and the second valve is opened. The gas enters the piston cylinder through the second gas pipe. The gas compresses the piston rod, thereby driving the side plate, baffle and brush plate to move downward. The brush on the brush plate cleans the dust adhering to one side of the filter screen. The first box cover is opened and the dust in the installation box is cleaned. The structure is simple and easy to use. Attached Figure Description

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the mounting box and a schematic diagram of the main assembly structure of the oxygen sensor of this utility model;

[0023] Figure 4 This is a schematic diagram of the inflatable component structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model.

[0025] In the diagram: 1. Mounting box; 2. Connecting pipe; 3. Sleeve; 4. Inflation assembly; 5. First box cover; 6. Filter plate; 7. Oxygen sensor body; 8. Cleaning assembly; 9. Second box cover; 401. First air pipe; 402. High-temperature resistant airbag; 403. First valve; 404. Connector; 405. Second air pipe; 406. Second valve; 407. Piston cylinder; 408. Piston rod; 801. Brush plate; 802. Baffle; 803. Side plate; 804. Gasket; 805. Slide plate; 806. Slide rod. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Refer to the instruction manual appendix Figure 1-5 An oxygen sensor for monitoring exhaust emissions according to this embodiment includes a mounting box 1 and an oxygen sensor body 7. The oxygen sensor body 7 is fixedly installed inside the top of the mounting box 1. A connecting pipe 2 is fixedly connected to one side of the mounting box 1, and a socket 3 is fixedly connected to the other end of the connecting pipe 2. An inflation assembly 4 is provided on the socket 3. The inflation assembly 4 includes a first air pipe 401, a high-temperature resistant airbag 402, a first valve 403, and a connector 404. One end of the first air pipe 401 passes through the socket 3 and is fixedly connected to the high-temperature resistant airbag 402, and the other end of the first air pipe 401 is fixedly connected to the connector 404. The high-temperature resistant airbag 402 is fixedly installed inside the socket 3, and the first valve 403 is fixedly installed on the first air pipe 401.

[0028] Furthermore, a filter plate 6 is movably disposed on the side of the oxygen sensor body 7 near the connecting pipe 2, and the filter plate 6 is fixedly connected to the inside of the mounting box 1. A second air pipe 405 is fixedly connected to the first air pipe 401, a second valve 406 is fixedly installed on the second air pipe 405, and a piston cylinder 407 is fixedly connected to the bottom end of the second air pipe 405. The piston cylinder 407 is fixedly connected to the top inside the mounting box 1, and a piston rod 408 is movably disposed on the piston cylinder 407.

[0029] Furthermore, a cleaning assembly 8 is provided at the bottom of the piston rod 408. The cleaning assembly 8 includes a brush plate 801, a baffle 802, a side plate 803, and a gasket 804. One side of the side plate 803 is fixedly connected to the baffle 802, and the top of the side plate 803 is fixedly connected to the piston rod 408. The brush plate 801 is fixedly installed on the other side of the baffle 802. The top of the gasket 804 is fixedly connected to the baffle 802. Slide plates 805 are fixedly connected to one side of the baffle 802 and at the front and rear sides of the side plate 803. Slide rods 806 are movably installed on both slide plates 805. The top and bottom of the two slide rods 806 are fixedly connected to the mounting box 1. The bottom of the mounting box 1 is movably connected to the first box cover 5 by a snap fastener. The rear side of the mounting box 1 is movably connected to the second box cover 9 by a snap fastener.

[0030] The system filters dust from the exhaust gas using a filter screen plate 6. The first valve 403 is closed and the second valve 406 is opened, allowing gas to enter the piston cylinder 407 through the second air pipe 405. The gas compresses the piston rod 408, causing it to move downwards. This, in turn, moves the side plate 803, baffle 802, and brush plate 801 downwards. The brushes on the brush plate 801 clean the dust adhering to one side of the filter screen plate 6. Simultaneously, the baffle 802 causes two sliding plates 805 to slide on two sliding rods 806, thus limiting the deflection of the baffle 802. Similarly, drawing air into the piston cylinder 407 causes the piston rod 408 and brush plate 801 to move upwards. When the gasket 804 contacts the mounting box 1, the first box cover 5 is opened, and the dust inside the mounting box 1 is cleaned. The system is simple in structure and easy to use. The second box cover 9 is then opened, and the oxygen sensor body 7 is operated.

[0031] The usage method of this embodiment is as follows:

[0032] In use, the operator places the insert 3 onto the vehicle's exhaust pipe, with the high-temperature resistant airbag 402 located on the outside of the exhaust pipe. Then, air is inflated into the connector 404, and the gas enters the high-temperature resistant airbag 402 through the first air pipe 401. The high-temperature resistant airbag 402 inflates and expands, compressing the exhaust pipe and thus fixing the insert 3 to the exhaust pipe. The first valve 403 is then closed, preventing the gas inside the high-temperature resistant airbag 402 from escaping through the first air pipe 401. The vehicle's exhaust gas enters the mounting box 1 through the insert 3 and connecting pipe 2. The oxygen sensor body 7 then detects the oxygen content in the exhaust gas. Similarly, opening the first valve 403 releases the air from the high-temperature resistant airbag 402, thus releasing the fixation between the insert 3 and the exhaust pipe. The structure is simple, easy to carry, and effectively improves detection efficiency.

[0033] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oxygen sensor for exhaust emission monitoring, comprising a mounting box (1) and an oxygen sensor body (7), and the oxygen sensor body (7) is fixedly installed at the inner top end of the mounting box (1), characterized in that: One side of the installation box (1) is fixedly connected with a connecting pipe (2), one end of the connecting pipe (2) is fixedly connected with a plug sleeve (3), the plug sleeve (3) is provided with an inflation assembly (4), the inflation assembly (4) comprises a first air pipe (401), a high-temperature-resistant air bag (402), a first valve (403) and a connector (404), one end of the first air pipe (401) penetrates the plug sleeve (3) and is fixedly connected with the high-temperature-resistant air bag (402), and the other end of the first air pipe (401) is fixedly connected with the connector (404), the high-temperature-resistant air bag (402) is fixedly installed in the plug sleeve (3), and the first valve (403) is fixedly installed on the first air pipe (401).

2. The oxygen sensor for exhaust emission monitoring according to claim 1, characterized by: The oxygen sensor body (7) is movably arranged on one side of the connecting pipe (2) and is fixedly connected to the inside of the installation box (1).

3. The oxygen sensor for exhaust emission monitoring according to claim 1, characterized by: The first air pipe (401) is fixedly connected with a second air pipe (405), the second air pipe (405) is fixedly installed with a second valve (406), and the bottom end of the second air pipe (405) is fixedly connected with a piston cylinder (407), the piston cylinder (407) is fixedly connected to the top end of the installation box (1), and the piston cylinder (407) is movably provided with a piston rod (408).

4. The oxygen sensor for exhaust emission monitoring according to claim 3, characterized by: The bottom of the piston rod (408) is provided with a cleaning assembly (8), the cleaning assembly (8) comprises a brush plate (801), a baffle (802), a side plate (803) and a gasket (804), one side of the side plate (803) is fixedly connected with the baffle (802), and the top end of the side plate (803) is fixedly connected with the piston rod (408).

5. The oxygen sensor for exhaust emission monitoring according to claim 4, characterized by: The brush plate (801) is fixedly installed on the other side of the baffle (802), and the top end of the gasket (804) is fixedly connected with the baffle (802).

6. The oxygen sensor for exhaust emission monitoring according to claim 4, characterized by: The baffle (802) is fixedly connected with a sliding plate (805) on one side and at the front and rear positions of the side plate (803), and the sliding plates (805) are movably provided with sliding rods (806), and the top and bottom ends of the sliding rods (806) are fixedly connected with the installation box (1).

7. The oxygen sensor for exhaust emission monitoring according to claim 1, characterized by: The bottom end of the installation box (1) is movably connected with a first box cover (5) through a buckle, and the rear side of the installation box (1) is movably connected with a second box cover (9) through a buckle.

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