Steering oil tank liquid level sensor

Abstract

The utility model provides a steering oil tank liquid level sensor which comprises a liquid level sensor body installed in a steering oil tank through a fixing assembly, the liquid level sensor body is made of stainless steel, and a rubber floater capable of moving up and down is arranged on the liquid level sensor body. According to the steering oil tank liquid level sensor, the arranged liquid level sensor body is made of stainless steel, the temperature resistance is relatively good, aging, deformation and even melting of materials can be avoided when the steering oil tank liquid level sensor works in a high-temperature environment for a long time, and therefore the measuring precision and the service life of the sensor are guaranteed, and the mechanical strength is high; the sensor is not easy to be damaged or the performance of the sensor is not easy to reduce due to the influence of vibration and impact in the running process of a vehicle, the sensor has better sealing performance under the action of the sealing ring, steering oil leakage can be effectively avoided, and the abnormal loss of the steering oil is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steering oil tanks, in particular to a steering oil tank liquid level sensor. Background Art

[0002] The steering tank level sensor is a device used to measure and monitor the height of the liquid in the tank. Its working principle is based on a float or other mechanical principle. It can detect the change of the liquid level in the tank in real time and convert this information into electrical signals for remote monitoring and control. This sensor is widely used in automobiles, storage and transportation facilities and other occasions that require accurate liquid level measurement, which is very important for ensuring driving and transportation safety.

[0003] The traditional automobile steering oil tank level sensor is a sensor made of plastic material, which is used to monitor the amount of steering oil in the car. Ensure that it can provide accurate oil readings during the use of the car to ensure driving safety. The traditional plastic automobile steering oil tank level sensor has relatively poor temperature resistance. Working in a high temperature environment for a long time may cause material aging, deformation or even melting, which will affect the measurement accuracy and service life of the sensor. Although some plastic materials have good corrosion resistance, chemical degradation may occur in the environment of strong corrosive media, such as some types of steering oil, which will shorten the service life of the sensor. The mechanical strength of plastic materials is usually lower than that of metal materials, and they are easily affected by vibration and impact during vehicle driving, resulting in sensor damage or performance degradation. The sealing performance of plastic sensors is not as good as that of metal sensors, which may cause steering oil leakage, increase abnormal loss of steering oil, and may also affect the stability of the internal circuit of the sensor.

[0004] Therefore, a steering oil tank level sensor is proposed. Utility Model Content

[0005] The utility model aims to solve the problem raised in the background technology and provides a steering oil tank liquid level sensor.

[0006] The specific technical solutions are as follows:

[0007] A steering oil tank level sensor, comprising:

[0008] The liquid level sensor body is installed inside the steering oil tank through a fixing assembly, the liquid level sensor body is made of stainless steel, and the liquid level sensor body has a rubber float that can move up and down, wherein:

[0009] The fixing assembly includes a mounting base, a connecting rod, a nut and a sealing ring. The mounting base is embedded in the bottom wall of the steering oil tank, and the mounting base is sealed and connected with the bottom wall of the steering oil tank at the junction. The bottom end of the liquid level sensor body is inserted into the interior of the mounting base. The connecting rod is fixedly mounted on the bottom end of the liquid level sensor body, and the bottom end of the connecting rod extends to below the bottom of the mounting base. The lower half of the connecting rod has an external thread on its surface, and the nut thread is sleeved on the external thread. The sealing ring is sleeved on the connecting rod, and the sealing ring is located above the upper end of the external thread. The sealing ring is sealed tightly against the bottom of the mounting base and the upper part of the nut, respectively.

[0010] As a preferred solution of the utility model, a gasket is also mounted on the connecting rod, and the gasket is located between the sealing ring and the nut.

[0011] As a preferred solution of the utility model, the gasket is a stainless steel gasket, the upper part of the gasket is a smooth plane, and the bottom of the gasket is integrally provided with a plurality of protrusions, and the plurality of protrusions are arranged at equal angles in a ring around the central axis of the gasket.

[0012] As a preferred solution of the utility model, the connecting rod is a stainless steel connecting rod, and a limiting groove is provided on the connecting rod in the area of ​​the external thread, the length direction of the limiting groove is consistent with the length direction of the connecting rod, and a limiting block is integrally provided on the inner ring surface of the gasket, and the limiting block is slidably inserted into the limiting groove.

[0013] As a preferred solution of the utility model, the sealing ring is a rubber sealing ring, and the surfaces of the sealing ring in contact with the bottom of the mounting base and the upper part of the gasket are all arc surfaces convex outwards.

[0014] As a preferred solution of the utility model, an annular groove is reserved inside the sealing ring near its inner ring surface, the cross-section of the annular groove is D-shaped, and the arc side of the annular groove is arranged close to the inner ring surface of the sealing ring.

[0015] As a preferred solution of the utility model, the fixing assembly further comprises a retaining spring, the retaining spring is fixedly mounted inside the steering oil tank, and the upper end of the liquid level sensor body is retained in the retaining spring.

[0016] The utility model has the following beneficial effects:

[0017] The steering oil tank level sensor provided by the utility model has a level sensor body made of stainless steel, which has relatively good temperature resistance. Working in a high temperature environment for a long time can avoid material aging, deformation or even melting, thereby ensuring the measurement accuracy and service life of the sensor. It has high mechanical strength and is not easily affected by vibration and impact during vehicle driving, which may cause sensor damage or performance degradation. Under the action of the sealing ring, the sensor has good sealing performance, which can effectively avoid steering oil leakage and effectively reduce abnormal loss of steering oil. At the same time, it can also ensure the stability of the internal circuit of the sensor, ensuring that the sensor can work stably under harsh conditions such as high temperature, corrosive media and mechanical vibration, thereby improving the safety of the vehicle. At the same time, the fixed component provided can enable the sensor to be quickly installed inside the steering oil tank, bringing convenience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the application of the steering oil tank level sensor provided by the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the partial structure of the steering oil tank level sensor provided in the embodiment of the utility model Figure 1 ;

[0020] Figure 3 A schematic diagram of a partial exploded structure of a steering oil tank level sensor provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure of a gasket in a steering oil tank level sensor provided by an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the structure of a sealing ring in a steering oil tank level sensor provided by an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of a cross-sectional three-dimensional structure of a sealing ring in a steering oil tank level sensor provided in an embodiment of the utility model;

[0024] Figure 7 This is a schematic cross-sectional plan view of the sealing ring in the steering oil tank level sensor provided in an embodiment of the utility model.

[0025] In the attached figure:

[0026] 1. Circlip; 2. Liquid level sensor body; 3. Rubber float; 4. Mounting base; 5. Sealing ring; 501. Annular groove; 6. Gasket; 601. Limit block; 602. Protrusion; 7. Nut; 8. Connecting rod; 801. External thread; 802. Limit groove; 9. Steering oil tank. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it 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 the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example

[0032] The steering oil tank level sensor provided in this embodiment is as follows: Figure 1-Figure 7 As shown, it includes: a liquid level sensor body 2 installed inside the steering oil tank 9 through a fixing assembly, the liquid level sensor body 2 is made of stainless steel, and a rubber float 3 capable of moving up and down is provided on the liquid level sensor body 2.

[0033] Among them, the fixing assembly includes a mounting base 4, a connecting rod 8, a nut 7 and a sealing ring 5. The mounting base 4 is embedded in the bottom wall of the steering oil tank 9, and the mounting base 4 is sealed and connected with the bottom wall of the steering oil tank 9 at the junction. The bottom end of the liquid level sensor body 2 is inserted into the inside of the mounting base 4, and the connecting rod 8 is fixedly mounted on the bottom end of the liquid level sensor body 2, and the bottom end of the connecting rod 8 extends to the bottom of the mounting base 4. The lower half of the surface of the connecting rod 8 has an external thread 801, and the nut 7 is threadedly sleeved on the external thread 801. The sealing ring 5 is sleeved on the connecting rod 8, and the sealing ring 5 is located above the upper end of the external thread 801. The sealing ring 5 is sealed tightly against the bottom of the mounting base 4 and the upper part of the nut 7 respectively.

[0034] The steering oil tank level sensor using the above technical solution has a level sensor body 2 made of stainless steel, which has relatively good temperature resistance. Working in a high temperature environment for a long time can avoid material aging, deformation or even melting, thereby ensuring the measurement accuracy and service life of the sensor. It has high mechanical strength and is not easily affected by vibration and impact during vehicle driving, which may cause sensor damage or performance degradation. Under the action of the sealing ring 5, the sensor has good sealing performance, which can effectively avoid steering oil leakage and effectively reduce abnormal steering oil loss. At the same time, it can also ensure the stability of the internal circuit of the sensor, ensuring that the sensor can work stably under harsh conditions such as high temperature, corrosive media and mechanical vibration, thereby improving the safety of the vehicle. The fixed component set at the same time can enable the sensor to be quickly installed inside the steering oil tank 9, bringing convenience to users.

[0035] Specifically, in the present embodiment, in order to prevent the nut 7 from being easily loosened, a gasket 6 is further mounted on the connecting rod 8, and the gasket 6 is located between the sealing ring 5 and the nut 7. At the same time, the gasket 6 is a stainless steel gasket. In order to avoid the upper part of the gasket 6 from causing wear to the sealing ring 5 and to ensure the sealing between the upper part of the gasket 6 and the sealing ring 5, the upper part of the gasket 6 is a smooth plane. In order to further prevent the nut 7 from being easily loosened, a plurality of protrusions 602 are integrally provided at the bottom of the gasket 6. The plurality of protrusions 602 are arranged at equal angles in an annular direction around the central axis of the gasket 6. The plurality of protrusions 602 can increase the static friction between the gasket 6 and the nut 7, thereby making the nut 7 not easy to loosen.

[0036] Specifically, in this embodiment, in order to ensure the service life of the connecting rod 8, the connecting rod 8 is a stainless steel connecting rod. In order to prevent the gasket 6 from rotating on the connecting rod 8 and reducing its restraining force on the nut 7, a limiting groove 802 is opened on the connecting rod 8 in the area of ​​the external thread 801, and the length direction of the limiting groove 802 is consistent with the length direction of the connecting rod 8. A limiting block 601 is integrally provided on the inner ring surface of the gasket 6. The limiting block 601 is slidably inserted into the limiting groove 802. The limiting block 601 cooperates with the limiting groove 802 to prevent the gasket 6 from rotating on the connecting rod 8.

[0037] Specifically, in this embodiment, in order to improve the sealing performance of the sealing ring 5, the sealing ring 5 is a rubber sealing ring, and the surfaces of the sealing ring 5 in contact with the bottom of the mounting base 4 and the upper part of the gasket 6 are all set to be arc surfaces convex outward.

[0038] Specifically, in the present embodiment, in order to improve the sealing performance between the sealing ring 5 and the connecting rod 8, an annular groove 501 is reserved inside the sealing ring 5 near its inner ring surface, and the cross-section of the annular groove 501 is D-shaped. At the same time, the arc-shaped side of the annular groove 501 is arranged close to the inner ring surface of the sealing ring 5, so that when the sealing ring 5 is squeezed, the inner ring surface of the sealing ring 5 will be squeezed and deformed toward the connecting rod 8 first, thereby improving the sealing performance between the inner ring surface of the sealing ring 5 and the connecting rod 8.

[0039] Specifically, in the present embodiment, in order to enable the liquid level sensor body 2 to be more stably installed inside the steering oil tank 9, the fixed component also includes a retaining spring 1, which is fixedly installed inside the steering oil tank 9, and the upper end of the liquid level sensor body 2 is clamped in the retaining spring 1. The retaining spring 1 can enable the liquid level sensor body 2 to work stably under harsh conditions such as mechanical vibration.

[0040] In summary, when the steering oil tank level sensor provided in this embodiment is used, the retaining spring 1 is fixedly installed inside the steering oil tank 9, the mounting base 4 is embedded in the bottom wall of the steering oil tank 9, and the junction between the mounting base 4 and the bottom wall of the steering oil tank 9 is sealed, and then the bottom end of the level sensor body 2 is inserted into the mounting base 4 so that the bottom end of the connecting rod 8 extends to below the bottom of the mounting base 4, and then the sealing ring 5, gasket 6, and nut 7 are successively installed on the connecting rod 8, and the nut 7 is tightened. A hole is drilled in the connecting rod 8 to lead out the signal line of the level sensor body 2. After the signal line is led out, the hole in the connecting rod 8 is sealed with sealant.

[0041] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A steering oil tank level sensor, characterized in that: include: A liquid level sensor body (2) is installed inside a steering oil tank (9) through a fixing assembly, the liquid level sensor body (2) is made of stainless steel, and a rubber float (3) capable of moving up and down is provided on the liquid level sensor body (2), wherein: The fixing assembly comprises a mounting base (4), a connecting rod (8), a nut (7) and a sealing ring (5); the mounting base (4) is embedded in the bottom wall of the steering oil tank (9), and the mounting base (4) is sealed and connected to the bottom wall of the steering oil tank (9) at the junction; the bottom end of the liquid level sensor body (2) is inserted into the inside of the mounting base (4); the connecting rod (8) is fixedly mounted on the bottom end of the liquid level sensor body (2), and the bottom end of the connecting rod (8) extends to below the bottom of the mounting base (4); the lower half surface of the connecting rod (8) has an external thread (801); the nut (7) is threadedly sleeved on the external thread (801); the sealing ring (5) is sleeved on the connecting rod (8), and the sealing ring (5) is located above the upper end of the external thread (801); the sealing ring (5) is sealed and tightly pressed against the bottom of the mounting base (4) and the upper part of the nut (7), respectively.

2. The steering oil tank level sensor according to claim 1, characterized in that: The connecting rod (8) is also provided with a gasket (6), and the gasket (6) is located between the sealing ring (5) and the nut (7).

3. The steering oil tank level sensor according to claim 2, characterized in that: The gasket (6) is a stainless steel gasket, the upper part of the gasket (6) is a smooth plane, and the bottom of the gasket (6) is integrally provided with a plurality of protrusions (602), and the plurality of protrusions (602) are arranged at equal angles in a circular direction around the central axis of the gasket (6).

4. The steering oil tank level sensor according to claim 3, characterized in that: The connecting rod (8) is a stainless steel connecting rod, and a limiting groove (802) is provided on the connecting rod (8) in the area of ​​the external thread (801), the length direction of the limiting groove (802) is consistent with the length direction of the connecting rod (8), and a limiting block (601) is integrally provided on the inner annular surface of the gasket (6), and the limiting block (601) is slidably inserted into the limiting groove (802).

5. The steering oil tank level sensor according to claim 2, characterized in that: The sealing ring (5) is a rubber sealing ring, and the surfaces of the sealing ring (5) in contact with the bottom of the mounting base (4) and the upper part of the gasket (6) are all arc surfaces convex outwards.

6. The steering oil tank level sensor according to claim 5, characterized in that: An annular hollow groove (501) is reserved inside the sealing ring (5) near its inner ring surface, the cross section of the annular hollow groove (501) is D-shaped, and the arc-shaped side of the annular hollow groove (501) is arranged close to the inner ring surface of the sealing ring (5).

7. The steering oil tank level sensor according to any one of claims 1 to 6, characterized in that: The fixing assembly further comprises a retaining spring (1), wherein the retaining spring (1) is fixedly mounted inside the steering oil tank (9), and the upper end of the liquid level sensor body (2) is retained inside the retaining spring (1).

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