Reed pipe type fuel oil liquid level sensor

Abstract

The utility model discloses a reed pipe type fuel oil liquid level sensor which comprises a reed pipe, the reed pipe is sleeved with a liquid collecting structure, the liquid collecting structure comprises a liquid collecting pipe, a plurality of sets of liquid collecting holes are evenly formed in the side wall of the liquid collecting pipe, and a liquid collecting box is fixedly arranged at the bottom of the liquid collecting pipe. A filter plate is fixedly arranged in the liquid collection box, an isolation plate is arranged in the liquid collection pipe, and a protection plate is fixedly connected to the isolation plate through a buffer spring. According to the reed pipe type fuel oil liquid level sensor, fuel oil in the oil tank is collected into the liquid collecting box through the liquid collecting hole in the side wall of the liquid collecting pipe, is filtered through the filter plate and then is input into the detection pipe through the oil conveying pipe, and therefore the situation that when a vehicle runs on a rugged road, the liquid level of the fuel oil in the oil tank fluctuates due to shaking is prevented; therefore, accurate numerical values cannot be displayed on the oil meter, so that the detection quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a reed switch type fuel level sensor. Background Art

[0002] Chinese patent CN214200307U discloses a fuel level sensor, the metal connector of which can be respectively abutted against a detection tube and a signal circuit board to conductively connect the detection tube and the signal circuit board, and the connector is grounded, so that the static electricity accumulated on the detection tube can be discharged to prevent the static electricity from damaging the components inside the fuel level sensor.

[0003] Although the sensor can effectively conduct static electricity on the detection tube, thereby reducing the damage caused by static electricity to the internal components of the fuel level sensor, when the vehicle travels on some rugged roads, the fuel in the tank will fluctuate with the shaking of the vehicle, causing the sensor to be unable to accurately measure the fuel level in the tank, thereby affecting the driver's judgment and easily causing driving hazards. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a reed switch type fuel level sensor, which solves the problem that the fuel in the fuel tank cannot be accurately detected when driving on a rough road.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a reed switch type fuel level sensor, including a reed switch, the outer sleeve of the reed switch is provided with a liquid collecting structure, the lower part of the liquid collecting structure is fixedly connected with a fixed structure, the liquid collecting structure includes a liquid collecting pipe, a plurality of groups of liquid collecting holes are evenly arranged on the side wall of the liquid collecting pipe, a liquid collecting box is fixedly provided at the bottom of the liquid collecting pipe, a filter plate is fixedly provided inside the liquid collecting box, an isolation plate is provided inside the liquid collecting pipe, and a protective plate is fixedly connected to the isolation plate through a buffer spring.

[0006] Preferably, a circuit board sleeve is provided inside the reed switch, a circuit board is provided inside the circuit board sleeve, detection tubes are provided on both sides of the circuit board sleeve, and a float is provided inside the detection tube.

[0007] Preferably, an oil delivery pipe is fixedly provided on the reed switch located at the position of the detection tube, and the other end of the oil delivery pipe passes through the top of the liquid collecting box and is arranged below the filter plate.

[0008] Preferably, the bottom of the detection tube is rotatably connected to a rotating rod, the bottom end of the rotating rod is rotatably provided with a swing arm, and the top of the liquid collecting box is provided with a fixing groove matching the rotating rod and the swing arm.

[0009] Preferably, the fixing structure comprises a fixing box, a connecting plate is fixedly connected to the inside of the fixing box via an elastic member, a positioning rod is fixedly provided on the connecting plate, and a suction cup is fixedly provided at the end of the positioning rod.

[0010] Preferably, a cleaning brush is fixedly provided on one side of the protective plate where it connects with the reed switch.

[0011] Beneficial Effects

[0012] The utility model provides a reed switch type fuel level sensor. Compared with the prior art, it has the following beneficial effects:

[0013] (1) The reed switch type fuel level sensor collects the fuel in the fuel tank into a collecting box through the collecting hole on the side wall of the collecting tube, and uses the buffer spring on the isolation plate inside the collecting box to buffer the impact force of the fuel flowing into the collecting tube due to shaking when the vehicle moves, thereby reducing damage to the limiting plate inside the reed switch and increasing its service life. The fuel flowing into the collecting box is filtered through the filter plate to filter the oil residue in the oil to prevent the oil residue from flowing into the detection tube, thereby improving the quality of its detection. The filtered fuel flows into the detection tube through the oil pipe, thereby causing it to move the position of the float inside the detection tube, and the position of the float is detected by the circuit board inside the circuit board sleeve, thereby realizing the detection of the fuel level inside the fuel tank. The sensor collects the fuel inside the fuel tank into the collecting box through the collecting hole on the side wall of the collecting tube, and after filtering through the filter plate, it is input into the detection tube through the oil pipe, thereby preventing the vehicle from shaking when driving on a rugged road, causing the fuel level in the fuel tank to fluctuate, resulting in the inability to display an accurate value on the fuel gauge, thereby improving the quality of its detection.

[0014] (2) The reed switch type fuel level sensor separates the reed switch from the liquid collecting structure by cooperating the rotating rod with the swing arm at the bottom of the detection tube with the fixed groove at the top of the liquid collecting box, so as to replace the damaged reed switch, thereby reducing the maintenance steps and improving the maintenance efficiency. The sensor is fixed inside the fuel tank by a positioning rod with a suction cup in the fixed structure at the bottom of the liquid collecting structure, thereby preventing the detector from fluctuating with the oil during the driving of the vehicle, reducing damage to the detector and increasing its service life. The elastic part inside the sensor buffers the impact force generated when driving on some rugged roads, preventing damage to the detector and ensuring the service life of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the liquid collecting structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the oil level sensor in the utility model.

[0018] In the figure: 1. reed switch; 2. liquid collecting structure; 21. liquid collecting pipe; 22. liquid collecting hole; 23. liquid collecting box; 24. filter plate; 25. isolation plate; 26. buffer spring; 27. protective plate; 3. fixing structure; 31. fixing box; 32. connecting plate; 33. positioning rod; 34. suction cup; 4. circuit board sleeve; 5. circuit board; 6. detection tube; 7. float; 8. oil pipeline; 9. rotating rod; 10. swing arm; 11. fixing groove. 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] The utility model provides two technical solutions:

[0021] Figure 1-3 The first embodiment is shown: a reed switch 1 type fuel level sensor, comprising a reed switch 1, an outer sleeve of the reed switch 1 is provided with a liquid collecting structure 2, a fixed structure 3 is fixedly connected below the liquid collecting structure 2, the liquid collecting structure 2 comprises a liquid collecting tube 21, a plurality of groups of liquid collecting holes 22 are evenly arranged on the side wall of the liquid collecting tube 21, a liquid collecting box 23 is fixedly provided at the bottom of the liquid collecting tube 21, a filter plate 24 is fixedly provided inside the liquid collecting box 23, an isolation plate 25 is provided inside the liquid collecting tube 21, a protective plate 27 is fixedly connected to the isolation plate 25 via a buffer spring 26, a circuit board sleeve 4 is provided inside the reed switch 1, a circuit board 5 is provided inside the circuit board sleeve 4, detection tubes 6 are provided on both sides of the circuit board sleeve 4, a float 7 is provided inside the detection tube 6, an oil pipeline 8 is fixedly provided on the reed switch 1 located at the position of the detection tube 6, and the other end of the oil pipeline 8 passes through the top of the liquid collecting box 23 and is arranged below the filter plate 24.

[0022] The fuel in the fuel tank is collected into the collecting box 23 through the collecting hole 22 on the side wall of the collecting pipe 21. The impact force of the fuel flowing into the collecting pipe 21 due to shaking when the vehicle moves is buffered by the buffer spring 26 on the isolation plate 25 inside the collecting box 23, thereby reducing the damage to the limiting plate inside the reed switch 1 and increasing its service life. The fuel flowing into the collecting box 23 is filtered through the filter plate 24 to filter the oil residue in the oil, thereby preventing the oil residue from flowing into the detection tube 6, thereby improving the quality of its detection. The filtered fuel flows into the detection tube 6 through the oil delivery pipe 8, thereby making it The position of the float 7 inside the detection tube 6 is moved, and the position of the float 7 is detected through the circuit board 5 inside the circuit board sleeve 4, thereby realizing the detection of the fuel level inside the fuel tank. The sensor collects the fuel inside the fuel tank into the collecting box 23 through the collecting hole 22 on the side wall of the collecting tube 21, and after filtering through the filter plate 24, it is input into the detection tube 6 through the oil pipe 8, thereby preventing the vehicle from shaking when driving on a rugged road, causing the fuel level in the fuel tank to fluctuate, resulting in the inability to display an accurate value on the fuel gauge, thereby improving the quality of its detection.

[0023] Figure 2-3 A second embodiment is shown, which mainly differs from the first embodiment in that: the bottom of the detection tube 6 is rotatably connected to a rotating rod 9, and a swing arm 10 is rotatably provided at the bottom end of the rotating rod 9, and a fixed groove 11 matching the rotating rod 9 and the swing arm 10 is provided on the top of the liquid collecting box 23, and two upper and lower slide grooves are provided inside the fixed groove 11, and a bend is provided between the two slide grooves. When the rotating rod 9 moves to the bend in the fixed groove 11, the swing arm 10 and the moving rod move to the slide groove at the upper part of the first fixed groove 11 in a shape of about 60°, thereby fixing the reed switch 1 and the liquid collecting structure 2. When the reed switch needs to be adjusted When replacing the reed switch 1, move the reed switch 1 downward. At this time, the swing arm 10 overlaps with the moving rod and moves into the slide groove at the bottom of the fixed groove 1145. At this time, the reed switch 1 is separated from the liquid collecting structure 2. The fixed structure 3 includes a fixed box 31. The interior of the fixed box 31 is fixedly connected with a connecting plate 32 through an elastic member. A positioning rod 33 is fixedly provided on the connecting plate 32. A suction cup 34 is fixedly provided at the end of the positioning rod 33. A cleaning brush is fixedly provided on one side of the protective plate 27 where the reed switch 1 is connected. The cleaning brush can be used to clean the oil on the surface of the reed switch 1 when the reed switch 1 is separated from the detection mechanism.

[0024] The rotating rod 9 with the swing arm 10 at the bottom of the detection tube 6 cooperates with the fixed groove 11 at the top of the liquid collecting box 23 to separate the reed switch 1 from the liquid collecting structure 2, thereby replacing the damaged reed switch 1, thereby reducing its maintenance steps and improving its maintenance efficiency. The sensor is fixed inside the fuel tank by the positioning rod 33 with the suction cup 34 in the fixed structure 3 at the bottom of the liquid collecting structure 2, thereby preventing the detector from fluctuating with the oil during vehicle driving, reducing damage to the detector, and increasing its service life. The elastic parts inside it buffer the impact force generated when driving on some rugged roads, preventing damage to the detector and ensuring the service life of the detector.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0026] When in use, the fuel inside the fuel tank is collected into the liquid collecting box 23 through the liquid collecting hole 22 on the side wall of the liquid collecting pipe 21, and the impact force of the fuel flowing into the liquid collecting pipe 21 due to shaking when the vehicle moves is buffered by the buffer spring 26 on the isolation plate 25 inside the liquid collecting box 23. The fuel flowing into the liquid collecting box 23 is filtered through the filter plate 24 to filter the oil residue in the oil, and the filtered fuel flows into the detection tube 6 through the oil pipe 8, so that it moves the position of the float 7 inside the detection tube 6, and its position is detected by the circuit board 5 inside the circuit board sleeve 4, thereby realizing the detection of the fuel level inside the fuel tank.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] 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. A reed switch type fuel level sensor, comprising a reed switch, characterized in that: The outer sleeve of the reed switch is provided with a liquid collecting structure, and a fixed structure is fixedly connected to the bottom of the liquid collecting structure. The liquid collecting structure includes a liquid collecting pipe, and a plurality of groups of liquid collecting holes are evenly arranged on the side wall of the liquid collecting pipe. A liquid collecting box is fixedly provided at the bottom of the liquid collecting pipe, and a filter plate is fixedly provided inside the liquid collecting box. An isolation plate is provided inside the liquid collecting pipe, and a protective plate is fixedly connected to the isolation plate via a buffer spring.

2. A reed switch type fuel level sensor according to claim 1, characterized in that: A circuit board sleeve is arranged inside the reed switch, a circuit board is arranged inside the circuit board sleeve, detection tubes are arranged on both sides of the circuit board sleeve, and a float is arranged inside the detection tube.

3. A reed switch type fuel level sensor according to claim 2, characterized in that: An oil delivery pipe is fixedly arranged on the reed switch located at the position of the detection pipe, and the other end of the oil delivery pipe passes through the top of the liquid collecting box and is arranged below the filter plate.

4. A reed switch type fuel level sensor according to claim 2, characterized in that: The bottom of the detection tube is rotatably connected with a rotating rod, the bottom end of the rotating rod is rotatably provided with a swing arm, and the top of the liquid collecting box is provided with a fixing groove matching the rotating rod and the swing arm.

5. The reed switch type fuel level sensor according to claim 1, characterized in that: The fixing structure comprises a fixing box, a connecting plate is fixedly connected to the fixing box via an elastic member, a positioning rod is fixedly arranged on the connecting plate, and a suction cup is fixedly arranged at the end of the positioning rod.

6. A reed switch type fuel level sensor according to claim 1, characterized in that: A cleaning brush is fixedly provided on one side of the junction between the protection plate and the reed switch.

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