Sparking plug verification device

Abstract

The utility model discloses a sparking plug verification device, which comprises a verification box body with an observation window, a verification mechanism arranged in the verification box body and used for verifying a sparking plug, and an air supply assembly communicated with the verification mechanism and used for providing compressed air, and the position of a sealing cavity is not opposite to the position of the observation window; and a reflective mirror is obliquely arranged between the observation window and the verification mechanism so as to reflect spark light of the sparking plug to the observation window. According to the ignition plug verification device provided by the utility model, the reflective mirror is arranged to reflect spark light of the ignition plug to the observation window for observation, so that the observation window is prevented from being arranged opposite to the spark generation position of the ignition plug, light interference to the test effect in the test environment is avoided, and smooth detection is facilitated; and the reflective mirror is arranged, so that an operator does not need to change the operating position, the spark condition of the ignition plug, which can be observed at the optimal observation position, can be observed, the operator can operate and observe conveniently, and the working intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of spark plug testing technology. More specifically, this utility model relates to a spark plug calibration device. Background Technology

[0002] Aircraft spark plugs (ignition sources) are primarily used in piston-engine aircraft. Their function is to generate an electric spark at the appropriate time within the engine's combustion chamber to ignite the air-fuel mixture. The performance of the spark plug directly affects the engine's operating condition. Accurately determining whether the spark plug is functioning correctly is crucial to ensuring the stable operation of the aircraft engine. Spark plug testing instruments can detect whether a spark is being generated by the spark plug. This is achieved by applying a high voltage to the spark plug and observing whether a spark jumps between the electrodes, thus determining whether the spark plug's ignition function is normal.

[0003] The utility model patent with authorization announcement number CN214754683U discloses an ignition testing device, which includes a testing port, a positioning sleeve, a high-voltage indicator light, a power indicator light, a testing body, a control switch, a power interface, a protective cover, and a docking port. The device directly observes the spark plug under test through an observation lens to observe the spark condition of the spark plug.

[0004] However, the protective cover of this device is transparent and the spark plug is observed directly through the lens. The observation effect is greatly affected by the environment. If there is strong light interference in the test environment, the test effect will be greatly affected, resulting in misjudgment and hindering the smooth progress of the test. Furthermore, observing the spark directly through the lens is more suitable for testing devices with a small body and only one or two test ports. For testing devices with a large body and many test ports, it is not convenient to directly observe the spark by corresponding to the best observation position through the lens. Utility Model Content

[0005] One object of this invention is to solve the above-mentioned problems and / or defects, and to provide the advantages that will be described later.

[0006] To achieve these objectives and other advantages of this utility model, an electric nozzle calibration device is provided, comprising: a calibration chamber with an observation window, a calibration mechanism disposed within the calibration chamber for calibrating the electric nozzle, and an air supply assembly connected to the calibration mechanism to provide compressed air. The calibration mechanism includes: a sealed chamber connected to the air supply assembly, multiple detection probes connected to the electric nozzle, and a power supply assembly for providing ignition voltage to the electric nozzle. The sealed chamber and the observation window are not positioned opposite each other.

[0007] A reflector is tilted between the observation window and the calibration mechanism to reflect the spark light from the electric nozzle to the observation window.

[0008] Preferably, the gas supply assembly includes: a cold gas cylinder disposed inside the calibration chamber and communicating with the sealed chamber;

[0009] An overflow valve is installed on the air intake pipe connecting the air cylinder to the external air-conditioned vehicle.

[0010] Preferably, the air conditioning cylinder is connected to an external air conditioning vehicle via a four-way connector;

[0011] One of the other two connectors of the four-way connector is connected to a pressure gauge I, and the other connector is connected to an overflow valve. A one-way valve is provided on the side of the four-way connector that connects to the external air-conditioned vehicle.

[0012] The pipeline connecting the four-way connector to the pressure gauge I is equipped with a three-way connector I, and the other connector of the three-way connector I is connected to the pressure reducing valve through the air conditioning valve I;

[0013] The output end of the pressure reducing valve is connected to the sealed chamber through a three-way connector II, and the other end of the three-way connector II is connected to the pressure gauge II through a three-way connector III.

[0014] The other connector of the three-way connector III is connected to a cooling valve II, and the other end of the cooling valve II is connected to the outside atmosphere.

[0015] Preferably, a support frame is provided below the verification box to support it;

[0016] The support frame is equipped with rollers at its lower part;

[0017] The calibration box has a handle on its side.

[0018] Preferably, the top of the calibration box is provided with a cover that is rotatably connected by a hinge.

[0019] This utility model has at least the following beneficial effects: by setting a reflector, the spark light from the electrical nozzle is reflected to the observation window for observation, avoiding the observation window and the position of the electrical nozzle spark being opposite each other, avoiding light interference from the test environment, and facilitating the smooth progress of the test; and for devices with multiple test probes on the calibration box to test the electrical nozzle, the reflector allows the operator to observe the electrical nozzle spark situation from the optimal observation position without changing the operator's position, which is convenient for the operator to operate and observe, and reduces the workload.

[0020] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the electric nozzle calibration device in one embodiment of the present invention;

[0022] Figure 2This is a schematic diagram of the internal structure of the electric nozzle calibration device in one embodiment of the present invention. Figure I ;

[0023] Figure 3 This is a schematic diagram of the internal structure of the electric nozzle calibration device in one embodiment of the present invention. Figure II ;

[0024] Figure 4 This is a schematic diagram of the air supply component of the electric nozzle calibration device in one embodiment of the present invention;

[0025] Figure 5 This is a circuit diagram of the electric nozzle calibration device in one embodiment of the present invention.

[0026] The diagram shows the following markings: 1. Calibration box, 11. Cover, 12. Handle, 13. Observation window, 14. Connection port, 15. Socket, 2. Calibration mechanism, 21. Sealed chamber, 22. Power supply component, 221. Indicator light, 222. Voltmeter, 223. Ignition device, 2231. High voltage wire, 224. Switch I, 225. Switch II, 226. Button, 227. Ammeter, 3. Gas supply component, 31. Air cylinder, 32. Pressure gauge I, 33. Air valve I, 34. Pressure reducing valve, 35. Pressure gauge II, 36. Air valve II, 37. Four-way connector, 371. Check valve, 372. Overflow valve, 38. T-connector I, 39. T-connector II, 310. T-connector III, 4. Reflector, 5. Electric nozzle, 6. Support frame, 61. Roller. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not list the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] Example 1

[0033] An electric nozzle calibration device, the structure of which is as follows: Figure 1-3 As shown, it includes: a calibration box 1 with an observation window 13, a calibration mechanism 2 set inside the calibration box 1 to calibrate the electric nozzle 5, and an air supply assembly 3 connected to the calibration mechanism 2 to provide compressed air. The calibration mechanism 2 includes: a sealed chamber 21 connected to the air supply assembly 3, multiple detection probes connected to the electric nozzle 5, and a power supply assembly 22 that provides ignition voltage to the electric nozzle 5. The sealed chamber 21 and the observation window 13 are not positioned opposite each other.

[0034] A reflector 4 is inclinedly arranged between the observation window 13 and the calibration mechanism 2 to reflect the spark light from the electric nozzle 5 to the observation window 13.

[0035] In practical applications, the installation positions are configured to be nine; the side wall of the calibration box 1 is provided with a connection port 14 for connecting to an external air-conditioned vehicle and a socket 15 for connecting to an external ground power supply vehicle.

[0036] Working principle: When using the calibration equipment, first install all 9 electrical outlets 5 on the calibration equipment and tighten them, and check that all switches and valves are in the closed position;

[0037] Then, connect the gas supply assembly 3 to the external air conditioning vehicle and fill it with air until the pressure in the sealed chamber 21 of the gas supply assembly 3 reaches the requirements of the working environment of the simulated electric nozzle 5. Then, close the valve in the sealed chamber 21. Connect the power supply assembly 22 to the external ground power vehicle and insert one end of the high-voltage wire 2231 of the power supply assembly 22 into the holes of each electric nozzle 5 in sequence. The spark light generated by each electric nozzle 5 after being energized is reflected by the reflector 4 to the observation window 13 for observation. By observing the electric spark generated by the electric nozzle 5 and the change of the ammeter 227 of the power supply assembly 22, the working condition of the electric nozzle 5 can be judged. After the calibration work is completed, first close all switches and valves, remove the air conditioning vehicle and unplug the ground power vehicle, and then open the corresponding valve of the gas supply assembly 3 to release the gas in the calibrator into the atmosphere.

[0038] This calibration equipment provides the necessary conditions for a stable electric spark to be generated by the electric nozzle 5, including gas pressure and rectified voltage. This allows for visual inspection of the nozzle 5's operation. A reflector 4 is used to reflect the spark light from the nozzle 5 to the observation window 13 for observation. This avoids the observation window 13 being positioned opposite the spark generation point of the nozzle 5, preventing light interference from the testing environment and facilitating smooth testing. Furthermore, for devices with multiple probes on the calibration chamber 1 that test the nozzle 5, the reflector 4 allows for observation of the nozzle 5's spark from the optimal viewing position without requiring operators to change positions, simplifying operation and observation and reducing workload.

[0039] Example 2

[0040] This second embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1-5 As shown, based on embodiment 1, the following improvement is disclosed: the gas supply assembly 3 includes: a cold gas cylinder 31 disposed inside the calibration box 1 and communicating with the sealed chamber 21;

[0041] An overflow valve 372 is provided on the air intake pipe connecting the air cylinder 31 to the external air-conditioned vehicle.

[0042] The air conditioning cylinder 31 is connected to an external air conditioning vehicle via a four-way connector 37;

[0043] One of the other two connectors of the four-way connector 37 is connected to a pressure gauge I 32, and the other connector is connected to an overflow valve 372. A one-way valve 371 is provided on the side of the four-way connector 37 that is connected to the external air-conditioned vehicle.

[0044] The pipeline connecting the four-way connector 37 and the pressure gauge I32 is provided with a three-way connector I38, and the other connector of the three-way connector I38 is connected to the pressure reducing valve 34 through the air conditioning valve I33;

[0045] The output end of the pressure reducing valve 34 is connected to the sealed chamber 21 through a three-way connector II 39, and the other end of the three-way connector II 39 is connected to the pressure gauge II 35 through a three-way connector III 310.

[0046] The other connector of the three-way connector Ⅲ310 is connected to a cooling valve Ⅱ36, and the other end of the cooling valve Ⅱ36 is connected to the outside atmosphere.

[0047] In practical applications, the circuit diagram of the power supply component 22 is as follows: Figure 5 As shown, the power supply assembly 22 includes an indicator light 221 that connects the power supply and the ground wire; a voltmeter 222 and an igniter 223 connected in parallel with the indicator light 221; a switch 1 connected between the indicator light 221 and the voltmeter 222 and connecting the power supply and the voltmeter 222; a switch 225 connected between the voltmeter 222 and the igniter 223 and connecting the power supply and the igniter 223; and a button 226 and an ammeter 227 connected in series with the switch 225.

[0048] The igniter 223 is equipped with an ignition coil and is connected to the electric nozzle 5 via a high-voltage wire 2231.

[0049] Working principle: First, connect the air conditioning cylinder 31 to the external air conditioning truck and observe the filling of air until the pressure gauge I32 indicates 45 kg / cm². 2 Then stop the inflation and open the air conditioning valve I33 until the pressure gauge II35 indicates 12-13 kg / cm². 2 Then close the air conditioning valve I33. Connect the ground power vehicle and check if indicator light 221 is lit. If it is, turn on power switch 1 and check if the voltmeter 222 reading is normal. If the voltmeter 222 reading is between 27 and 30V, turn on switch II225. Insert one end of the high-voltage wire 2231 from the output of igniter 223 into each of the 5 holes of the electrical nozzles in sequence, and press button 226 in sequence to observe the spark generated by the electrical nozzles 5 and the change in ammeter 227. Perform the test. After the calibration work is completed, first close all air conditioning valves and power switches, remove the air conditioning vehicle, unplug the ground power plug, and then open air conditioning valve II36 to release the gas in the calibrator into the atmosphere.

[0050] Example 3

[0051] This third embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1 As shown, based on embodiment 1, the following improvement is disclosed: a support frame 6 is provided below the verification box 1 to support it;

[0052] The support frame 6 is provided with rollers 61 below it;

[0053] The test box 1 has a handle 12 on its side.

[0054] In practical applications, four rollers 61 are provided below the support frame 6, respectively located at the four corners of the rectangular frame below the support frame 6.

[0055] Working principle: By setting up the support frame 6, the height of the device is made suitable, making it convenient for users to operate and improving the comfort of operation; the control panel is equipped with rollers 61 and handles 12 to facilitate the movement of the device.

[0056] Example 4

[0057] This embodiment 4 is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1-2 As shown, based on embodiment 1, the following improvement is disclosed: a cover 11 is provided on the top of the verification box 1 via a hinge.

[0058] Working principle: The cover 11 can protect the various switches, valves, instruments, etc. when not in operation, thereby improving safety and extending the service life of the device.

[0059] The above solutions are merely illustrative examples of preferred embodiments, but are not limited thereto. When implementing this invention, appropriate substitutions and / or modifications can be made according to the user's needs.

[0060] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0061] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. An electric nozzle calibration device, comprising: A calibration chamber with an observation window, a calibration mechanism for calibrating an electric nozzle set inside the calibration chamber, and an air supply assembly connected to the calibration mechanism to provide compressed air. The calibration mechanism includes: a sealed chamber connected to the air supply assembly, multiple detection probes connected to the electric nozzle, and a power supply assembly for providing ignition voltage to the electric nozzle. The sealed chamber and the observation window are not positioned opposite each other. A reflector is tilted between the observation window and the calibration mechanism to reflect the spark light from the electric nozzle to the observation window.

2. The electric nozzle calibration device as described in claim 1, characterized in that, The gas supply assembly includes: a cold gas cylinder disposed inside the calibration chamber and communicating with the sealed chamber; An overflow valve is installed on the air intake pipe connecting the air cylinder to the external air-conditioned vehicle.

3. The electric nozzle calibration device as described in claim 2, characterized in that, The air cylinder is connected to an external air-conditioning vehicle via a four-way connector; One of the other two connectors of the four-way connector is connected to a pressure gauge I, and the other connector is connected to an overflow valve. A one-way valve is provided on the side of the four-way connector that connects to the external air-conditioned vehicle. The pipeline connecting the four-way connector to the pressure gauge I is equipped with a three-way connector I, and the other connector of the three-way connector I is connected to the pressure reducing valve through the air conditioning valve I; The output end of the pressure reducing valve is connected to the sealed chamber through a three-way connector II, and the other end of the three-way connector II is connected to the pressure gauge II through a three-way connector III. The other connector of the three-way connector III is connected to a cooling valve II, and the other end of the cooling valve II is connected to the outside atmosphere.

4. The electric nozzle calibration device as described in claim 1, characterized in that, The verification box is supported by a support frame at its bottom; The support frame is equipped with rollers at its bottom; The calibration box has a handle on its side.

5. The electric nozzle calibration device as described in claim 1, characterized in that, The test box is fitted with a cover that is hinged to the top.

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