Engine fault diagnosis alarm device

Abstract

The utility model discloses an engine fault diagnosis alarm device which comprises a throttle valve, one side of the throttle valve extends to form a butt joint interface, at least three sensor connectors are arranged in the butt joint interface, and one side of the butt joint interface is provided with a locking clamping groove. The utility model relates to the technical field of engine fault alarm, in particular to an engine fault diagnosis alarm device, which adopts a sensor on a throttle valve to detect faults of an engine, and adopts a plug-in mounting mode to connect a fault diagnosis connector with an interface of the sensor. And the plug-in mounting limiting rod provided with an elastic structure is assisted to be locked with the locking clamping groove in a matched manner, so that the position of the fault detection connector is limited and connected, disconnection of the fault diagnosis connector due to jolt and vibration during use is avoided, the structure is simple, and disassembly, assembly and maintenance can be quickly performed by using a reset button.

Description

Technical Field

[0001] The utility model relates to the technical field of engine fault alarm, in particular to an engine fault diagnosis alarm device. Background Art

[0002] In the use of modern engines, in order to effectively detect parameters such as the engine's combustion efficiency and protect the driver and the engine, a fault diagnosis alarm device is usually connected to the engine.

[0003] At present, on-vehicle engine fault diagnosis and alarm are mainly connected to multiple on-vehicle sensors through the fault warning light on the panel. Among them, the sensor located on the throttle is the most important detection sensor, which is mainly used to monitor whether the engine is in idle condition or load condition. At present, the detection connection mainly uses the wiring holes on the detection plug to correspond to the pins of the sensor to complete the insertion, and the limiting and fixing mostly rely on interference fit. However, this detection connection method is easy to fall off due to problems such as bumps in the driving process of the car, or due to problems such as loose insertion, resulting in inaccurate detection results. In view of this, in-depth research on the above problems has led to the emergence of this case. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an engine fault diagnosis and alarm device, which solves the existing background technology problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an engine fault diagnosis and alarm device, comprising a throttle, a docking interface extending from one side of the throttle, at least three sensor connectors are arranged in the docking interface, and a locking slot is arranged on one side of the docking interface;

[0006] It also includes a fault diagnosis connector, to which a data transmission line is connected, the fault diagnosis connector is provided with jacks corresponding to the number of sensor connectors, and a socket connector is provided at the connection between the tail end of the fault diagnosis connector and the data transmission line;

[0007] A limit slot is provided on the fault diagnosis joint, a plug-in limit rod is assembled in the limit slot, a diameter of the plug-in limit rod matches the locking slot, a limit spring is provided on one side of the plug-in limit rod, and a movable plate is connected to the end of the plug-in limit rod;

[0008] The socket joint is provided with a reset slide groove, a reset button runs through the reset slide groove, and the reset button is connected to the plug-in limit rod through a movable plate.

[0009] Preferably, the jacks of the fault diagnosis connector are arranged in an equilateral triangle, and the internal sensing connectors of the docking interface are also arranged in an equilateral triangle array.

[0010] Preferably, a transition rod extends from the end of the reset button to be connected to the movable plate, and a compression spring is disposed on the outer sleeve of the transition rod.

[0011] Preferably, the head end of the insertion limit rod is a hemispherical structure, and the opening end of the locking slot is provided with a concave groove.

[0012] Preferably, the diameter of the socket joint is larger than the size of the fault diagnosis joint and is mutually limited with the docking interface.

[0013] Beneficial Effects

[0014] The utility model provides an engine fault diagnosis alarm device. It has the following beneficial effects: the engine fault diagnosis alarm device uses a sensor on the throttle to detect engine faults, uses a plug-in method to connect the fault diagnosis connector and the interface of the sensor, and is auxiliaryly provided with an elastic structure of the plug-in limit rod and the locking slot for matching locking, so as to limit the position of the fault detection connector and prevent the fault diagnosis connector from being disconnected due to bumps and vibrations during use, and has a simple structure and can be quickly disassembled and repaired using a reset button. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the engine fault diagnosis and alarm device of the utility model.

[0016] Figure 2 The figure is a side structural schematic diagram of the engine fault diagnosis and alarm device of the utility model.

[0017] Figure 3 This is a schematic diagram of the main structure of the engine fault diagnosis and alarm device of the utility model.

[0018] In the figure: 1. Throttle; 2. Docking interface; 3. Sensor connector; 4. Locking slot; 5. Fault diagnosis connector; 6. Data transmission line; 7. Socket; 8. Socket joint; 9. Limit slide; 10. Insert limit rod; 11. Limit spring; 12. Movable plate; 13. Reset slide; 14. Reset button; 15. Transition rod; 16. Press spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides an implementation scheme: in the operation process of a modern engine, when an engine failure occurs, it will affect the operation of the engine. At this time, an alarm device is often used to give an alarm. The current engine fault diagnosis alarm mainly relies on the sensor to detect the position of the throttle valve 1 and then give an alarm. However, in this alarm device, the connection of the sensor is mainly carried out in a plug-in manner, and the fixation is mostly carried out in an interference fit manner. It is easy to fall off when encountering a bumpy car, and it is difficult to ensure that it is in place when plugged in.

[0021] In view of the above problems, the present application discloses an engine fault diagnosis alarm device, wherein a fault diagnosis sensor is installed on a throttle valve 1, and a docking interface 2 is extended on one side of the throttle valve 1. The docking interface 2 is a connection position for realizing the transmission of sensor signals, and is matched with a fault diagnosis connector 5 for use, and at least three sensor connectors 3 are arranged in the docking interface 2. On the one hand, the fault diagnosis connector 5 is matched with the sensor connector 3 through a jack 7 to realize the transmission of sensor signals. After the fault diagnosis connector 5 is inserted into the docking interface 2, it is connected to the sensor connector 3 through the jack 7. A data transmission line 6 is connected to the fault diagnosis connector 5 for transmitting the sensor data to the fault indicator light of the automobile. When the sensor on the throttle valve 1 detects an engine fault, the data is transmitted to the fault diagnosis connector 5 through the sensor, and the fault diagnosis connector 5 sends the fault signal to the fault indicator light through the data transmission line 6, and an alarm is given by lighting up the fault indicator light.

[0022] Furthermore, a locking card slot 4 is provided on one side of the docking interface 2; the locking card slot 4 can realize the quick connection of the fault diagnosis connector 5, and a socket joint 8 is provided at the connection between the tail end of the fault diagnosis connector 5 and the data transmission line 6, and the socket joint 8 is used to limit the fault diagnosis connector 5, so as to prevent the fault diagnosis connector 5 from being inserted too deeply and causing the sensor connector to be skewed;

[0023] Specifically, in order to match with the locking slot 4 and realize the locking of the fault diagnosis connector 5, a limit slot 9 is provided on the fault diagnosis connector 5, and the insertion limit rod 10 is assembled in the limit slot 9. The diameter of the insertion limit rod 10 matches the locking slot 4, and a limit spring 11 is provided on one side of the insertion limit rod 10; during the insertion of the fault diagnosis connector 5, the insertion limit rod 10 is limited by the inner wall of the docking interface 2, and the insertion limit rod 10 slides back into the limit slot 9, and the insertion limit rod 10 is used to push the limit spring 11, so that the limit spring 11 is compressed. After the fault diagnosis connector 5 is in place, the insertion limit rod 10 is reversely ejected from the limit slot 9 through the reset effect of the limit spring 11, and then the insertion limit rod 10 is inserted into the locking slot 4 to realize the locking of the fault diagnosis connector 5, accompanied by a crisp rebound sound, to remind the user, which is convenient for operation and installation;

[0024] Furthermore, a movable plate 12 is connected to the end of the insertion limit rod 10, and a reset slide groove 13 is arranged on the socket joint 8. A reset button 14 runs through the reset slide groove 13. The reset button 14 is connected to the insertion limit rod 10 through the movable plate 12. When the fault diagnosis connector 5 needs to be released, the reset button 14 is pressed to move the reset button 14 into the reset slide groove 13, squeezing the movable plate 12, so that the movable plate 12 synchronously drives the insertion limit rod 10 to slide inward, thereby disengaging the insertion limit rod 10 from the locking slot 4, and then pulling out the fault diagnosis connector 5, so that the connection between the sensor and the fault indicator light is released, which is convenient for maintenance and replacement.

[0025] As a preferred solution, further, the jack 7 of the fault diagnosis connector 5 is arranged in an equilateral triangle, and the internal sensing connectors of the docking interface 2 are also arranged in an equilateral triangle array, which has a simple structure and is easy to align.

[0026] As a preferred solution, further, the end of the reset button 14 extends a transition rod connected to the movable plate 12, and a pressing spring 16 is provided on the outer sleeve of the transition rod 15. The position of the transition rod 15 can be adjusted by the reset button 14 to facilitate the release of the connection between the insertion limit rod 10 and the locking slot 4. The reset button 14 can be easily reset by pressing the spring 16.

[0027] As a preferred solution, further, the head end of the insertion limit rod 10 is a hemispherical structure, and the opening end of the locking slot 4 is provided with a concave groove. Through the limiting of the hemispherical head end of the insertion limit rod 10 and the concave groove, a guiding effect can be played on the insertion limit rod 10.

[0028] As a preferred solution, further, the diameter of the socket joint 8 is larger than the size of the fault diagnosis joint 5 and is mutually limited with the docking interface 2 to prevent the fault diagnosis joint 5 from being over-inserted.

[0029] From the above, it can be generally known that the engine fault diagnosis alarm device uses a sensor on the throttle valve 1 to detect engine faults, uses a plug-in method to connect the fault diagnosis connector 5 with the interface of the sensor, and is auxiliaryly provided with an elastic structure. The plug-in limit rod 10 is matched with the locking slot 4 to lock, thereby limiting the position of the fault detection connector to avoid disconnection of the fault diagnosis connector 5 due to bumps and vibrations during use, and the structure is simple and can be quickly disassembled and repaired using the reset button 14.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine fault diagnosis and alarm device, comprising a throttle valve (1), a docking interface (2) extending from one side of the throttle valve (1), at least three sensor connectors (3) being arranged in the docking interface (2), characterized in that: A locking slot (4) is provided on one side of the docking interface (2); It also comprises a fault diagnosis connector (5), to which a data transmission line (6) is connected, and the fault diagnosis connector (5) is provided with jacks (7) corresponding to the number of sensor connectors (3), and a socket connector (8) is provided at the connection between the tail end of the fault diagnosis connector (5) and the data transmission line (6); A limit slot (9) is provided on the fault diagnosis connector (5), a plug-in limit rod (10) is assembled in the limit slot (9), the diameter of the plug-in limit rod (10) matches the locking slot (4), a limit spring (11) is provided on one side of the plug-in limit rod (10), and a movable plate (12) is connected to the end of the plug-in limit rod (10); The socket joint (8) is provided with a reset slide groove (13), a reset button (14) runs through the reset slide groove (13), and the reset button (14) is connected to the insertion limit rod (10) through a movable plate (12).

2. The engine fault diagnosis and alarm device according to claim 1, characterized in that: The jacks (7) of the fault diagnosis connector (5) are arranged in an equilateral triangle shape, and the internal sensing connectors of the docking interface (2) are also arranged in an equilateral triangle array.

3. The engine fault diagnosis and alarm device according to claim 2, characterized in that: A transition rod extends from the end of the reset button (14) and is connected to the movable plate (12), and a pressing spring (16) is disposed on the outer sleeve of the transition rod (15).

4. The engine fault diagnosis and alarm device according to claim 3, characterized in that: The head end of the insertion limiting rod (10) is a hemispherical structure, and the opening end of the locking slot (4) is provided with an inner concave groove.

5. The engine fault diagnosis and alarm device according to claim 4, characterized in that: The diameter of the socket joint (8) is larger than the size of the fault diagnosis joint (5) and is mutually limited with the docking interface (2).

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