Equipment for testing performance of oxygen sensor

Abstract

The utility model discloses equipment for testing the performance of an oxygen sensor, and relates to the technical field of oxygen sensors, the equipment for testing the performance of the oxygen sensor comprises a sealing box, the sealing box is fixed on a rack through a bolt, and the sealing box is movably connected with a sealing box cover through a rotating shaft; the sealing box is provided with a circular hole facilitating installation of the negative pressure extraction pipe, and the other end of the negative pressure extraction pipe is connected with the negative pressure fan in a matched mode. A plurality of brackets are fixed on the rack through bolts, a plurality of U-shaped grooves are fixed on the brackets through bolts, and detectors are embedded in the U-shaped grooves; according to the utility model, the sealing box cover rotates on the sealing box and is matched with the rack to form the cavity, during detection, the negative pressure fan is matched with the negative pressure extraction pipe to extract high temperature and flue gas on the inner side, so that overflow of the temperature and the flue gas is avoided, the oxygen sensor is mounted on the U-shaped groove, the shield is inserted into the U-shaped groove, and the electric fire maker strikes fire to heat the shield; the universal meter connected with the detector receives detection data.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of oxygen sensors, and specifically is a device for testing the performance of oxygen sensors. Background Technique

[0002] For the performance test of oxygen sensors, combustion tests of engines are simulated, and generally natural gas combustion tests are adopted. Under normal circumstances, the performance test consists of a tank of natural gas, a pipeline for combustion and flame spraying, with several test holes opened on it. The test data of the oxygen sensor is obtained by a multimeter at one end of the connector or by professional software on a computer.

[0003] The traditional test device requires manual ignition, and the entire test bench is basically exposed indoors. Therefore, the environmental temperature in the test room is relatively high, and there are potential safety hazards when the staff operates the ignition. For this reason, we provide a device for testing the performance of oxygen sensors. By using an electric igniter for ignition and the negative pressure extraction pipe can extract the temperature and flue gas in the cavity during detection, thus avoiding the overflow of high temperature in the indoor environment, ensuring the quality of the working environment, and effectively making up for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for testing the performance of oxygen sensors to solve the problems put forward in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for testing the performance of oxygen sensors includes a sealed box, which is fixed on the frame by bolts, and the sealed box is movably connected with a sealed box cover through a rotating shaft; a circular hole for the installation of the negative pressure extraction pipe is opened on the sealed box, and the other end of the negative pressure extraction pipe is connected with a negative pressure fan in a matching manner; a plurality of brackets are fixed on the frame by bolts, a plurality of U-shaped grooves are fixed on the brackets by bolts, and a detector is embedded in the U-shaped groove; a card slot for the insertion of a protective cover is opened on the U-shaped groove, and an electric igniter is arranged on one side of the protective cover.

[0007] As a further technical solution of the utility model, the electric igniter is clamped on a snap plate, and the electric igniter is connected with a gas delivery pipe in a matching manner, and the other end of the gas delivery pipe is connected with a gas tank in a matching manner.

[0008] As a further technical solution of the utility model, a solenoid valve is connected with the gas delivery pipe in a matching manner, and the gas delivery pipe is slidably connected on the slot of the frame.

[0009] As a further technical solution of the utility model, a sliding seat is welded at the bottom of the snap plate, the sliding seat is slidably connected on a guide rail, and the guide rail is fixed on the frame by bolts.

[0010] As a further technical solution of the present utility model, a pulling plate is welded to the bottom of the buckle plate, and the pulling plate is connected to the push rod of the pulling cylinder in a matching manner, and the pulling cylinder is fixed to the machine frame by bolts.

[0011] As a further technical solution of the present utility model, the detector is electrically connected to the central controller, and the central controller is fixed to the machine frame by bolts.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] In the present utility model, the sealing cover rotates on the sealed box and forms a cavity in cooperation with the machine frame. During detection, the negative pressure fan and the negative pressure extraction pipe cooperate to extract the high temperature and flue gas inside, thereby avoiding the overflow of temperature and flue gas. The oxygen sensor is installed on the U-shaped groove and inserted into the protective cover, and the electric igniter ignites to heat the protective cover. The multimeter connected to the detector will collect the detection data; in the present utility model, the solenoid valve can control the on-off of the gas delivery pipe, facilitating the release of gas from the gas cylinder. The buckle plate facilitates the installation of the electric igniter, and the electric igniter cooperates with the gas delivered by the gas delivery pipe to ignite and heat; in the present utility model, the push rod of the pulling cylinder pushes the pulling plate to move, thereby pushing the sliding seat to move along the guide rail, providing power for the buckle plate to drive the electric igniter to move and adjusting the position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 is in the present utility model Figure 1 front view.

[0016] Figure 3 is in the present utility model Figure 1 internal structural schematic diagram.

[0017] Figure 4 is in the present utility model Figure 3 schematic diagram of another perspective.

[0018] Figure 5 is in the present utility model Figure 3 internal structural schematic diagram.

[0019] Figure 6 is in the present utility model Figure 5 schematic diagram of another perspective.

[0020] In the figure: 1 - frame, 2 - negative pressure extraction pipe, 3 - sealing box, 4 - sealing box cover, 5 - bracket, 6 - U-shaped groove, 7 - shield, 8 - detector, 9 - electric igniter, 10 - buckle plate, 11 - sliding seat, 12 - guide rail, 13 - pulling plate, 14 - pulling cylinder, 15 - gas delivery pipe, 16 - solenoid valve, 17 - gas tank, 18 - central controller. Detailed implementation mode

[0021] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-6 , in the embodiment of the present invention, a device for testing the performance of an oxygen sensor includes a sealing box 3, which is fixed on the frame 1 by bolts, and the sealing box 3 is movably connected to the sealing box cover 4 through a rotating shaft; a circular hole for installing the negative pressure extraction pipe 2 is opened on the sealing box 3, and the other end of the negative pressure extraction pipe 2 is connected to a negative pressure fan in cooperation; a plurality of brackets 5 are fixed on the frame 1 by bolts, a plurality of U-shaped grooves 6 are fixed on the brackets 5 by bolts, and a detector 8 is embedded on the U-shaped groove 6; a card slot for inserting the shield 7 is opened on the U-shaped groove 6, and an electric igniter 9 is arranged on one side of the shield 7.

[0023] By adopting the above technical solution, the sealing box cover 4 rotates on the sealing box 3 and forms a cavity in cooperation with the frame 1. During detection, the negative pressure fan cooperates with the negative pressure extraction pipe 2 to extract the high temperature and flue gas inside, thereby avoiding the overflow of temperature and flue gas. The oxygen sensor is installed on the U-shaped groove 6 and the shield 7 is inserted. The electric igniter 9 ignites to heat the shield 7, and the multimeter connected to the detector 8 will collect the detection data.

[0024] In this embodiment, the electric igniter 9 is clamped on the buckle plate 10, and the electric igniter 9 is connected to the gas delivery pipe 15 in cooperation. The other end of the gas delivery pipe 15 is connected to the gas tank 17 in cooperation.

[0025] Furthermore, a solenoid valve 16 is connected to the gas delivery pipe 15 in cooperation, and the gas delivery pipe 15 is slidably connected to the slot on the frame 1.

[0026] By adopting the above technical solution, the solenoid valve 16 can control the on-off of the gas delivery pipe 15, which is convenient for releasing the gas in the gas tank 17. The buckle plate 10 is convenient for installing the electric igniter 9. The electric igniter 9 ignites and heats with the gas delivered by the gas delivery pipe 15, which is not only safe but also convenient to operate.

[0027] In this embodiment, a sliding seat 11 is welded to the bottom of the snap plate 10. The sliding seat 11 is slidably connected to the guide rail 12, and the guide rail 12 is fixed to the frame 1 by bolts, enabling the snap plate 10 to move back and forth. Cooperating with the bracket 5, the test starts. The snap plate 10 automatically moves forward to dock with the bracket 5. After the test is completed, the snap plate 10 automatically moves backward and leaves the bracket 5.

[0028] Furthermore, a pulling plate 13 is welded to the bottom of the snap plate 10. The pulling plate 13 is cooperatively connected to the push rod of the pulling cylinder 14, and the pulling cylinder 14 is fixed to the frame 1 by bolts.

[0029] By adopting the above technical solution, the push rod of the pulling cylinder 14 pushes the pulling plate 13 to move, thereby pushing the sliding seat 11 to move along the guide rail 12, providing power for the snap plate 10 to drive the electric igniter 9 to move and adjust the position.

[0030] In this embodiment, the detector 8 is electrically connected to the central controller 18, and the central controller 18 is fixed to the frame 1 by bolts.

[0031] By adopting the above technical solution, the detector 8 feeds back data to the multimeter, and the central controller 18 collects the data generated by the multimeter for easy observation.

[0032] The working principle of the present utility model is as follows: When in use, the solenoid valve 16 can control the on-off of the gas delivery pipe 15, facilitating the release of gas from the gas cylinder 17. The snap plate 10 facilitates the installation of the electric igniter 9. The electric igniter 9 cooperates with the gas delivered by the gas delivery pipe 15 for ignition and heating; the push rod of the pulling cylinder 14 pushes the pulling plate 13 to move, thereby pushing the sliding seat 11 to move along the guide rail 12, providing power for the snap plate 10 to drive the electric igniter 9 to move and adjust the position; the sealing cover 4 rotates on the sealing box 3 and cooperates with the frame 1 to form a cavity. During detection, the negative pressure fan cooperates with the negative pressure extraction pipe 2 to extract the high temperature and flue gas inside, thereby preventing the temperature and flue gas from overflowing. The oxygen sensor is installed on the U-shaped groove 6 and inserted into the protective cover 7. The electric igniter 9 ignites to heat the protective cover 7. The multimeter connected to the detector 8 will collect the detection data; the detector 8 feeds back the data to the multimeter, and the central controller 18 collects the data generated by the multimeter for easy observation.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0034] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for testing the performance of an oxygen sensor, characterized in that: It includes a sealing box (3) which is fixed to the frame (1) by bolts, and the sealing box (3) is movably connected to a sealing box cover (4) through a rotating shaft; a circular hole facilitating the installation of a negative pressure extraction pipe (2) is formed in the sealing box (3), and the other end of the negative pressure extraction pipe (2) is connected to a negative pressure fan in a matching manner; a plurality of brackets (5) are fixed to the frame (1) by bolts, a plurality of U-shaped grooves (6) are fixed to the brackets (5) by bolts, and a detector (8) is embedded in the U-shaped grooves (6); a clamping groove facilitating the insertion of a protective cover (7) is formed in the U-shaped grooves (6), and an electric igniter (9) is arranged on one side of the protective cover (7).

2. The device for testing the performance of an oxygen sensor according to claim 1, wherein: The electric igniter (9) is clamped on a clamping plate (10), and the electric igniter (9) is connected to a gas delivery pipe (15) in a matching manner, and the other end of the gas delivery pipe (15) is connected to a gas tank (17) in a matching manner.

3. The device for testing the performance of an oxygen sensor according to claim 2, characterized in that: A solenoid valve (16) is connected to the gas delivery pipe (15) in a matching manner, and the gas delivery pipe (15) is slidably connected to a slotted opening of the frame (1).

4. The device for testing the performance of an oxygen sensor according to claim 2, characterized in that: A sliding seat (11) is welded to the bottom of the clamping plate (10), the sliding seat (11) is slidably connected to a guide rail (12), and the guide rail (12) is fixed to the frame (1) by bolts.

5. The device for testing the performance of an oxygen sensor according to claim 4, characterized in that: A pulling plate (13) is welded to the bottom of the clamping plate (10), the pulling plate (13) is connected to a push rod of a pulling cylinder (14) in a matching manner, and the pulling cylinder (14) is fixed to the frame (1) by bolts.

6. The device for testing the performance of an oxygen sensor according to claim 1, characterized in that: The detector (8) is electrically connected to a central controller (18), and the central controller (18) is fixed to the frame (1) by bolts.

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