Oil scale integrated with pressure relief function

Abstract

The utility model discloses an oil scale integrated with a pressure relief function, belongs to the technical field of engines, and solves the problems of engine oil injection or cracking of an oil pan and the like caused by the fact that exhaust gas pressure is too high and cannot be discharged due to the fact that condensed water in a crankcase ventilation system is frozen when encountering cold. The oil scale integrated with the pressure relief function comprises an oil scale body, a pressure relief pipe communicated with the oil scale body is arranged on the oil scale body, an exhaust pipe communicated with the pressure relief pipe is arranged on the pressure relief pipe, a pressure relief plate is installed in the pressure relief pipe in a sliding mode, a spring is arranged at one end of the pressure relief plate, and the other end of the spring is connected with the end, away from the pressure relief plate, of the pressure relief pipe. The exhaust pipe is located between the pressure relief plate and the end, away from the pressure relief plate, of the pressure relief pipe. According to the oil scale integrated with the pressure relief function, faults such as engine oil ejection caused by the fact that the oil scale is ejected out are effectively prevented, meanwhile, damage to an oil pan caused by too high pressure can be avoided, and the service life of the oil pan is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and more particularly to an oil dipstick with an integrated pressure relief function. Background Art

[0002] The oil dipstick, also known as the oil dipstick, is a tool used to measure and detect the amount of engine lubricating oil. It is usually installed on the oil tank or oil pan to facilitate the measurement of the liquid level of the lubricating oil.

[0003] In traditional diesel engines, especially gas engines, the oil dipstick is installed on the oil pan. The condensed water in the crankcase ventilation system will freeze when it encounters low temperatures, causing the pipes to be blocked and unable to discharge the exhaust gas in the crankcase ventilation system. This will cause excessive pressure in the oil pan, pushing the oil dipstick out, resulting in oil spraying or cracking of the oil pan (plastic), causing damage to the oil pan. Utility Model Content

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art and provide an oil dipstick with an integrated pressure relief function, which can effectively prevent the oil dipstick from being pushed out and causing malfunctions such as oil spraying, while also avoiding damage to the oil pan caused by excessive pressure, thereby effectively extending the service life of the oil pan.

[0005] The technical solution of the present utility model is as follows: an oil dipstick with an integrated pressure relief function, comprising an oil dipstick, the oil dipstick being provided with a pressure relief pipe connected thereto, the pressure relief pipe being provided with an exhaust pipe connected thereto, a pressure relief plate being slidably installed in the pressure relief pipe, one end of the pressure relief plate being provided with a spring, the other end of the spring being connected to an end of the pressure relief pipe away from the pressure relief plate, and the exhaust pipe being located between the pressure relief plate and the end of the pressure relief pipe away from the pressure relief plate.

[0006] As a further improvement, the diameter of the pressure relief pipe is adapted to the diameter of the pressure relief plate, and the central axis of the pressure relief pipe coincides with the central axis of the pressure relief plate.

[0007] Furthermore, the pressure relief pipe includes a fixed pipe and a movable pipe, the fixed pipe and the movable pipe are connected by threads, one end of the fixed pipe is connected to the oil dipstick, and the pressure relief plate and the spring are both installed in the movable pipe.

[0008] Furthermore, a slide groove is provided in the movable tube, and a slider is provided at the bottom of the pressure relief plate, and the slider is slidably installed in the slide groove.

[0009] Furthermore, the cross section of the chute is convex, and the sliding block is adapted to the chute.

[0010] Furthermore, there are multiple springs.

[0011] Furthermore, the diameter of the exhaust pipe gradually decreases from an end of the exhaust pipe close to the pressure relief pipe to an end of the exhaust pipe away from the pressure relief pipe.

[0012] Furthermore, anti-slip grooves are provided on the outer wall of the exhaust pipe.

[0013] Beneficial effects

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The utility model provides an oil dipstick with an integrated pressure relief function. When the exhaust gas pressure is greater than the elastic force of the spring, the pressure relief plate moves to the right. At this time, the exhaust gas is discharged from the exhaust pipe until the exhaust pressure is less than the elastic force of the spring, and the pressure relief plate resets. The oil dipstick has a simple structure and effectively prevents the oil dipstick from being pushed out and causing malfunctions such as oil spraying. At the same time, it can avoid damage to the oil pan due to excessive pressure, effectively extending the service life of the oil pan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model when in use;

[0017] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the middle part;

[0019] Figure 4 This is an enlarged schematic diagram of the main cross-section of the pressure relief pipe in the utility model;

[0020] Figure 5 It is a schematic side cross-sectional structural diagram of the pressure relief pipe in the utility model.

[0021] Among them: 1-oil dipstick, 2-pressure relief pipe, 3-exhaust pipe, 4-pressure relief plate, 5-spring, 6-chute, 7-slider, 21-fixed pipe, 22-movable pipe. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0023] See Figure 1--4. An oil dipstick with an integrated pressure relief function, comprising an oil dipstick 1, a pressure relief pipe 2 connected thereto provided on the oil dipstick 1, an exhaust pipe 3 connected thereto provided on the pressure relief pipe 2, a pressure relief plate 4 slidably installed in the pressure relief pipe 2, a spring 5 provided at one end of the pressure relief plate 4, the other end of the spring 5 being connected to the end of the pressure relief pipe 2 away from the pressure relief plate 3, the exhaust pipe 3 being located between the pressure relief plate 4 and the end of the pressure relief pipe 2 away from the pressure relief plate 4; when the exhaust gas pressure in the ventilation system is greater than the elastic force of the spring 5, the pressure relief plate 4 moves to the right, at which time the exhaust gas is discharged from the exhaust pipe 3 until the exhaust pressure is less than the elastic force of the spring 5, and the pressure relief plate 4 is reset. The oil dipstick has a simple structure, which effectively prevents the oil dipstick from being pushed out and causing faults such as oil spraying, and at the same time can avoid damage to the oil pan due to excessive pressure, thereby effectively extending the service life of the oil pan.

[0024] In this embodiment, the diameter of the pressure relief pipe 2 is adapted to the diameter of the pressure relief plate 3, and the central axis of the pressure relief pipe 2 coincides with the central axis of the pressure relief plate 3. The diameter inside the cavity of the pressure relief pipe 2 is equal to the diameter of the pressure relief plate 3. A sealing strip is provided on the side wall of the pressure relief plate 3 to further enhance the sealing between the pressure relief pipe 2 and the pressure relief plate 3.

[0025] In this embodiment, the pressure relief pipe 2 includes a fixed pipe 21 and a movable pipe 22. The fixed pipe 21 and the movable pipe 22 are connected by threads. One end of the fixed pipe 21 is connected to the oil dipstick 1, and the pressure relief plate 4 and the spring 5 are both installed in the movable pipe 22; one end of the fixed pipe 21 is provided with an internal thread, and one end of the movable pipe 22 is provided with an external thread adapted to the internal thread in the cavity of the fixed pipe 21. The fixed pipe 21 and the movable pipe 22 are connected by threads, which facilitates the quick disassembly of the movable pipe 22, thereby facilitating the maintenance of the pressure relief plate 4 in the movable pipe 22.

[0026] In this embodiment, a slide groove 6 is provided in the movable tube 22, and a slider 7 is provided at the bottom of the pressure relief plate 4. The slider 7 is slidably installed in the slide groove 6. When the exhaust pressure is greater than the elastic force of the spring 5, the pressure relief plate 4 slides in the pressure relief pipe 2, driving the slider 7 to move in the slide groove 6. At this time, the slider 7 plays a guiding role to prevent the pressure relief plate 4 from deviating when it moves to the exhaust pipe 3, resulting in the pressure relief plate 4 being unable to reset.

[0027] In this embodiment, the cross-section of the slide groove 6 is "convex", the slider 7 is adapted to the slide groove 6, the cross-section of the slide groove 6 is "convex", and the corresponding cross-section of the slider 7 is also "convex", which can prevent the slider 7 from detaching from the slide groove 7 during the sliding process.

[0028] In this embodiment, there are multiple springs 5, and there is only one spring 5. The threshold value of the exhaust pressure in the pressure relief pipe 2 is associated with the elastic force of the spring 5; when the exhaust pressure is greater than the elastic force, the pressure relief plate 4 moves to the right, and the exhaust gas is discharged from the exhaust pipe 3 until the exhaust pressure is less than the elastic force of the spring 5, and the pressure relief plate 4 is reset. The exhaust pressure of the oil dipstick 1 can be adjusted by increasing or decreasing the number of springs 5, thereby increasing or decreasing its elastic force.

[0029] In this embodiment, the diameter of the exhaust pipe 3 gradually decreases from the end of the exhaust pipe 3 close to the pressure relief pipe 2 to the end of the exhaust pipe 3 away from the pressure relief pipe 2. The diameter of the exhaust pipe 3 gradually becomes smaller, which facilitates the installation and plugging of the hose.

[0030] In this embodiment, anti-slip grooves are provided on the outer wall of the exhaust pipe 3. The hose can be inserted into the exhaust pipe 3 and connected to the exhaust pipe 3 to discharge the exhaust gas to the outside. Preferably, the other end of the hose can be connected to the engine intake pipe, and the exhausted exhaust gas can be introduced into the engine through the hose for recycling. The anti-slip grooves on the outer wall of the exhaust pipe 3 can increase the friction between the exhaust pipe and the hose and enhance the sealing.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An oil dipstick with integrated pressure relief function, characterized in that: The invention comprises an oil dipstick (1), wherein the oil dipstick (1) is provided with a pressure relief pipe (2) in communication with the oil dipstick, the pressure relief pipe (2) is provided with an exhaust pipe (3) in communication with the oil dipstick, a pressure relief plate (4) is slidably mounted in the pressure relief pipe (2), one end of the pressure relief plate (4) is provided with a spring (5), the other end of the spring (5) is connected to an end of the pressure relief pipe (2) away from the pressure relief plate (4), and the exhaust pipe (3) is located between the pressure relief plate (4) and the end of the pressure relief pipe (2) away from the pressure relief plate (4).

2. The oil dipstick with integrated pressure relief function according to claim 1, characterized in that: The diameter of the pressure relief pipe (2) is adapted to the diameter of the pressure relief plate (4), and the central axis of the pressure relief pipe (2) coincides with the central axis of the pressure relief plate (4).

3. The oil dipstick with integrated pressure relief function according to claim 1, characterized in that: The pressure relief pipe (2) comprises a fixed pipe (21) and a movable pipe (22). The fixed pipe (21) and the movable pipe (22) are connected via threads. One end of the fixed pipe (21) is connected to the oil dipstick (1). The pressure relief plate (4) and the spring (5) are both installed in the movable pipe (22).

4. The oil dipstick with integrated pressure relief function according to claim 3, characterized in that: A slide groove (6) is provided in the movable tube (22), a slider (7) is provided at the bottom of the pressure relief plate (4), and the slider (7) is slidably installed in the slide groove (6).

5. The oil dipstick with integrated pressure relief function according to claim 4, characterized in that: The cross section of the chute (6) is convex, and the slider (7) is adapted to the chute (6).

6. The oil dipstick with integrated pressure relief function according to claim 1, characterized in that: There are multiple springs (5).

7. The oil dipstick with integrated pressure relief function according to claim 1, characterized in that: The diameter of the exhaust pipe (3) gradually decreases from one end of the exhaust pipe (3) close to the pressure relief pipe (2) to one end of the exhaust pipe (3) away from the pressure relief pipe (2).

8. The oil dipstick with integrated pressure relief function according to claim 1, characterized in that: Anti-slip grooves are provided on the outer wall of the exhaust pipe (3).

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