High-pressure oil level measuring sensor with protective structure

Abstract

The utility model relates to a high-pressure oil level measuring sensor, in particular to a high-pressure oil level measuring sensor with a protective structure. Comprising a sensor body and a tank body, a mounting hole matched with the sensor body is formed in the upper side of the tank body in a penetrating mode, a protection mechanism is arranged at the position, close to the mounting hole, of the tank body, the protection mechanism comprises a transmission assembly and a plurality of annularly-arranged arc-shaped blades, and the transmission assembly is used for driving the arc-shaped blades to rotate. According to the utility model, the sensor main body is fixed on the tank body through the protection mechanism, when the sensor main body needs to be disassembled and overhauled, a worker relieves the fixation of the sensor main body by the protection mechanism and moves the sensor main body out of the interior of the tank body; crude oil attached to the sensor body is scraped off through the arc-shaped blades, and after the sensor body is moved out, the mounting hole is sealed through the arc-shaped blades.

Description

Technical Field

[0001] This utility model relates to a high-pressure oil level measuring sensor, specifically, to a high-pressure oil level measuring sensor with a protective structure. Background Technology

[0002] High-pressure oil tanks are used for crude oil storage, chemical raw material blending, and product storage. They are typically cylindrical structures. To detect the oil level inside the tank, an oil level sensor is installed on the top. The sensor is installed inside the high-pressure oil tank. The sensor has a liquid level detection chamber for oil to enter. The oil level changes the capacitance of the capacitive level sensor. By measuring the change in capacitance, the oil level inside the tank can be determined. To facilitate installation, a mounting hole is usually provided on the top of the high-pressure oil tank. The bottom of the sensor passes through this hole into the tank, while the top of the sensor is fixed to the outside of the tank to ensure stability.

[0003] When workers need to repair or replace the oil level measurement sensor, they remove it from the high-pressure oil tank. At this time, the mounting hole on the high-pressure oil tank is exposed to the outside environment, and dust and other external particles can easily enter the interior of the high-pressure oil tank through the mounting hole, increasing impurities in the crude oil and other materials inside the tank and affecting their subsequent use. During use, the bottom of the oil level measurement sensor is in the crude oil, causing crude oil to adhere to its surface. During the removal of the oil level measurement sensor, it carries the adhered crude oil out of the high-pressure oil tank, and crude oil drips from its surface, resulting in waste of crude oil inside the high-pressure oil tank. In view of this, we propose a high-pressure oil level measurement sensor with a protective structure. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure oil level measuring sensor with a protective structure to solve the problems mentioned in the background art.

[0005] 1. During the maintenance or replacement of the oil level measurement sensor, the mounting holes on the high-pressure oil tank are exposed to the outside, allowing dust and other impurities to enter the interior of the high-pressure oil tank through the mounting holes, resulting in an increase in impurities in the crude oil inside the high-pressure oil tank.

[0006] 2. During the process of removing the oil level measuring sensor from the inside of the high-pressure oil tank, some crude oil is moved out of the high-pressure oil tank along with the oil level measuring sensor or drips, resulting in waste of crude oil.

[0007] To address the aforementioned problems, the present invention aims to provide a high-pressure oil level measuring sensor with a protective structure, comprising a sensor body and a tank. The upper side of the tank has a through-hole matching the sensor body. A protective mechanism is provided on the tank near the mounting hole. This protective mechanism secures the sensor body to the tank. During the removal and movement of the sensor body from the tank, the protective mechanism scrapes off the crude oil adhering to the sensor body. After the sensor body is removed from the tank, the protective mechanism seals the mounting hole. The protective mechanism includes a transmission component and several annularly arranged arc-shaped blades. The transmission component drives the arc-shaped blades to rotate.

[0008] As a further improvement to this technical solution, the transmission assembly includes a mounting base fixedly mounted on the tank body. A mounting shell is rotatably connected to the upper side of the mounting base. A movable groove is provided at the bottom of the mounting shell, and a placement groove is provided at the top of the mounting base. The top of the mounting base is located inside the movable groove. The movable groove and the placement groove form a storage cavity. The arc-shaped blade is located inside the storage cavity. The arc-shaped blade is installed and stored through the mounting base and the mounting shell.

[0009] As a further improvement to this technical solution, the bottom of one end of the arc-shaped blade is rotatably connected to the mounting base, and a limiting block is fixedly provided at the top of the other end of the arc-shaped blade. The end of the arc-shaped blade near the limiting block is inclined upward. The top of the mounting shell has several limiting grooves that penetrate the mounting shell. The number and position of the limiting grooves correspond to the number of arc-shaped blades. The limiting block is slidably disposed inside the limiting groove. When the mounting shell rotates, the limiting block drives the arc-shaped blade to rotate around the hinge position. During the rotation of the arc-shaped blade, the limiting block slides inside the limiting groove.

[0010] As a further improvement to this technical solution, the mounting base and the mounting shell are provided with through holes near the middle. The two through holes coincide with the central axis of the mounting hole, and the diameter of the through holes is larger than the diameter of the mounting hole. The through holes allow the mounting base and the mounting shell to be located on the outside of the sensor body, thus preventing the mounting base and the mounting shell from affecting the installation and movement of the sensor body.

[0011] As a further improvement to this technical solution, a mounting ring is fixedly provided on the sensor body near the top. When the sensor body is in use, the mounting ring is located on the outside of the tank and inside the through hole. The sensor body is installed on the tank by the mounting ring to prevent the sensor body from falling off the tank.

[0012] As a further improvement to this technical solution, an annular groove is provided on the side wall of the mounting ring, and the position of the annular groove corresponds to that of the arc-shaped blade. When the arc-shaped blade enters the interior of the annular groove, the mounting ring and the sensor body are fixed to the tank body by the arc-shaped blade. After the sensor body is installed on the tank body, the arc-shaped blade is driven to rotate by the transmission component, so that the arc-shaped blade enters the interior of the annular groove and fixes the mounting ring to the tank body, further increasing the stability of the sensor body on the tank body.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This high-pressure oil level measuring sensor with a protective structure has its main body fixed to the tank via a protective mechanism. When the sensor body needs to be disassembled for maintenance, the operator drives the transmission assembly to rotate the arc-shaped blades away from the sensor body, releasing the protective mechanism from fixing the sensor body. The operator then moves the sensor body out of the tank. During the movement of the sensor body, the operator drives the transmission assembly to rotate the arc-shaped blades so that they slide into contact with the surface of the sensor body. The arc-shaped blades scrape off the crude oil adhering to the sensor body, thereby reducing the amount of crude oil residue on the sensor body. After the sensor body is removed, the operator drives the transmission assembly to rotate the arc-shaped blades, causing the arc-shaped blades to seal the mounting hole, thereby preventing dust from entering the tank through the mounting hole. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an assembly cross-sectional view of the sensor body, mounting ring, and tank in this utility model;

[0017] Figure 3 This is one of the structural schematic diagrams of the fixed installation ring state of the protective mechanism in this utility model;

[0018] Figure 4 This is the second structural schematic diagram of the protective mechanism with the fixed installation ring in this utility model.

[0019] Figure 5 This is a schematic diagram of the protective mechanism in the retracted state of the arc-shaped blade in this utility model;

[0020] Figure 6 This is a cross-sectional view of the protective mechanism of the present invention in the state of the arc-shaped blade being stored.

[0021] Figure 7 This is an assembly cross-sectional view of the mounting base and mounting block in this utility model;

[0022] Figure 8This is an assembly diagram of the arc-shaped blade and the limiting block in this utility model.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Sensor body; 11. Mounting ring;

[0025] 2. Protective mechanism; 21. Mounting base; 22. Mounting shell; 23. Limiting groove; 24. Arc-shaped blade; 25. Limiting block;

[0026] 3. Tank body. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1 - Figure 8 As shown, the purpose of this embodiment is to provide a high-pressure oil level measuring sensor with a protective structure, including a sensor body 1 and a tank 3. The upper side of the tank 3 has a mounting hole that matches the sensor body 1. A mounting ring 11 is fixedly installed on the sensor body 1 near the top. When the sensor body 1 is in use, the sensor body 1 passes through the mounting hole and enters the interior of the tank 3. At this time, the mounting ring 11 is located on the outside of the tank 3. The arc-shaped side wall of the mounting ring 11 and the inner wall of the mounting hole have matching threads. When the sensor body 1 needs to be used, the operator moves the bottom of the sensor body 1 through the mounting hole into the interior of the tank 3. When the bottom of the mounting ring 11 contacts the tank 3, the operator screws the sensor body 1 to make the mounting ring 11 threadedly connected to the inner wall of the mounting hole, thereby installing the sensor body 1 on the tank 3 and detecting the oil level inside the tank 3 through the sensor body 1.

[0030] refer to Figure 3 - Figure 8A protective mechanism 2 is provided on the tank body 3 near the mounting hole. The protective mechanism 2 is used to fix the sensor body 1 on the tank body 3. During the process of removing and moving the sensor body 1 from the inside of the tank body 3, the protective mechanism 2 scrapes off the crude oil adhering to the sensor body 1. After the sensor body 1 is removed from the inside of the tank body 3, the protective mechanism 2 seals the mounting hole to prevent dust from passing through the mounting hole and entering the inside of the tank body 3. The protective mechanism 2 includes a transmission component and several annularly arranged arc-shaped blades 24. The transmission component is used to drive the arc-shaped blades 24 to rotate. The mounting base 21 and the mounting shell 22 have through holes near the middle. The two through holes coincide with the central axis of the mounting hole, and the diameter of the through holes is larger than the diameter of the mounting hole. The side wall of the mounting ring 11 has an annular groove, which corresponds to the position of the arc-shaped blades 24. When the arc-shaped blades 24 enter the interior of the annular groove, the mounting ring 11 and the sensor body 1 are fixed on the tank body 3 by the arc-shaped blades 24.

[0031] When the sensor body 1 is installed on the tank 3, the mounting ring 11 is located inside the through hole. Then, the operator drives the transmission assembly to rotate the arc-shaped blade 24 towards the mounting ring 11, causing one side of the arc-shaped blade 24 to enter the annular groove. The arc-shaped blade 24 restricts the position of the mounting ring 11, preventing loosening between the mounting ring 11 and the sensor body 1, thus securing them together. When it is necessary to disassemble the sensor body 1, the operator drives the transmission assembly to rotate the arc-shaped blade 24 away from the mounting ring 11. During this process, the mounting ring 11 moves out of the annular groove. Then, the operator rotates the sensor body 1 in the opposite direction, separating the mounting ring 11 from the tank 3. Finally, the operator pulls the sensor body 1 along the axis of the mounting hole, removing the sensor body 1 from the tank 3. During the movement of the sensor body 1… The operator drives the transmission assembly to move the arc-shaped blades 24 closer to the sensor body 1, causing them to slide into contact with the side wall of the sensor body 1. The arc-shaped blades 24 scrape off the crude oil adhering to the side wall of the sensor body 1, and the scraped crude oil falls back into the tank 3, thus reducing the waste of crude oil inside the tank 3. After the sensor body 1 is removed from the tank 3, the operator continues to drive the transmission assembly to move several arc-shaped blades 24 closer together. As the several arc-shaped blades 24 move towards the center of the mounting hole, they gradually unfold to form a shape that seals the mounting hole. At this time, the several arc-shaped blades 24 are in close contact with each other, sealing the mounting hole and preventing external dust and impurities from falling into the tank 3, thus avoiding dust and impurities from mixing with the crude oil and affecting the purity of the crude oil inside the tank 3.

[0032] refer to Figure 3 - Figure 7 The transmission assembly includes a mounting base 21 fixedly mounted on the tank body 3. A mounting shell 22 is rotatably connected to the upper side of the mounting base 21. The bottom of the mounting shell 22 has a movable groove, and the top of the mounting base 21 has a placement groove. The top of the mounting base 21 is located inside the movable groove, and the movable groove and the placement groove form a receiving cavity. An arc-shaped blade 24 is located inside the receiving cavity. The bottom of one end of the arc-shaped blade 24 is rotatably connected to the mounting base 21, and the top of the other end of the arc-shaped blade 24 is fixedly connected to a limiting block 25. The top of the mounting shell 22 has several limiting grooves 23 penetrating the mounting shell 22. The number and position of the limiting grooves 23 correspond to the number of arc-shaped blades 24. The limiting blocks 25 are slidably disposed inside the limiting grooves 23. During the rotation of the mounting shell 22, the limiting block 25 drives the arc-shaped blades 24 to rotate around the hinge position, causing several arc-shaped blades 24 to move closer or further apart from each other near the center. At the same time, during the rotation of the arc-shaped blades 24, the limiting block 25 slides inside the limiting groove 23 to prevent the arc-shaped blades 24 from separating from the mounting shell 22. Meanwhile, a connecting groove is provided on the side wall of the mounting base 21, and a connecting ring is fixedly provided on the inner wall of the mounting shell 22 near the connecting groove. The connecting ring is rotatably connected inside the connecting groove, and the mounting base 21 and the mounting shell 22 are connected together through the connecting ring and the connecting groove, preventing the mounting base 21 from separating from the mounting shell 22, thereby allowing the mounting shell 22 to rotate outside the mounting base 21.

[0033] The arc-shaped blade 24 is a thin metal sheet with a thickness of 1mm-2mm. Two adjacent arc-shaped blades 24 are in contact with each other. The arc angle of the arc-shaped blade 24 is between 90° and 120°. The arc-shaped blade 24 with this arc angle can allow the middle part to enter the mounting hole during rotation, so that the arc-shaped blade 24 blocks the mounting hole. At the same time, when the transmission component drives the arc-shaped blade 24 to rotate, the surfaces of adjacent arc-shaped blades 24 slide in contact with each other. Meanwhile, an elastic rubber ring can be set at the edge of the arc-shaped blade 24. The elastic rubber ring makes the arc-shaped blade 24 fit tightly against the side wall of the sensor body 1, improving the scraping effect of the arc-shaped blade 24 on the crude oil adhering to the sensor body 1.

[0034] When using this device:

[0035] When it is necessary to disassemble, repair or replace the sensor body 1, the staff rotates the mounting shell 22 to move the arc blade 24 out of the inside of the annular groove. Then the staff twists the sensor body 1 to separate the mounting ring 11 from the tank 3. Then the staff removes the sensor body 1 from the inside of the tank 3.

[0036] At this time, the staff twisted the mounting shell 22 to drive the arc blade 24 to rotate, so that the arc blade 24 slides into contact with the side wall of the sensor body 1. During the movement of the sensor body 1, the arc blade 24 scrapes off the crude oil attached to the sensor body 1, so that the crude oil falls back into the interior of the tank 3.

[0037] After the sensor body 1 is removed from the inside of the tank 3, the staff continues to rotate the mounting shell 22 to drive the arc blades 24 to rotate, so that the arc blades 24 contact each other near the middle position, and seal the mounting hole through the arc blades 24 to prevent dust and impurities from entering the inside of the tank 3.

[0038] When the sensor body 1 is repaired and needs to be installed, the worker rotates the mounting shell 22 to move the arc-shaped blades 24 away from each other, exposing the mounting hole. Then, the worker moves the sensor body 1 through the mounting hole into the tank 3. At the same time, the worker screws the sensor body 1 to make the mounting ring 11 threadedly connected to the tank 3, and installs the sensor body 1 on the tank 3. Then, the worker rotates the mounting shell 22 to move the arc-shaped blades 24 into the annular groove, thereby fixing the mounting ring 11 and the sensor body 1.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure oil level measuring sensor with a protective structure, comprising a sensor body (1) and a tank (3), wherein the upper side of the tank (3) is provided with a mounting hole matching the sensor body (1), characterized in that: A protective mechanism (2) is provided on the tank (3) near the mounting hole. The protective mechanism (2) is used to fix the sensor body (1) on the tank (3). During the process of the sensor body (1) being taken out and moved from the inside of the tank (3), the protective mechanism (2) scrapes off the crude oil adhering to the sensor body (1). After the sensor body (1) is taken out from the inside of the tank (3), the mounting hole is sealed by the protective mechanism (2). The protective mechanism (2) includes a transmission component and several arc-shaped blades (24) arranged in a ring. The transmission component is used to drive the arc-shaped blades (24) to rotate.

2. The high pressure oil level measurement sensor with protective structure according to claim 1, characterized in that: The transmission assembly includes a mounting base (21) fixedly mounted on the tank body (3). A mounting shell (22) is rotatably connected to the upper side of the mounting base (21). The bottom of the mounting shell (22) is provided with a movable groove, and the top of the mounting base (21) is provided with a placement groove. The top of the mounting base (21) is located inside the movable groove. The movable groove and the placement groove form a storage cavity. The arc-shaped blade (24) is located inside the storage cavity.

3. The high pressure oil level measurement sensor with protective structure according to claim 2, characterized in that: The bottom of one end of the arc-shaped blade (24) is rotatably connected to the mounting base (21), and the top of the other end of the arc-shaped blade (24) is fixedly connected to a limiting block (25). The end of the arc-shaped blade (24) near the limiting block (25) is inclined upward. The top of the mounting shell (22) is provided with several limiting grooves (23) that penetrate the mounting shell (22). The number and position of the limiting grooves (23) correspond to the number of arc-shaped blades (24). The limiting block (25) is slidably disposed inside the limiting groove (23).

4. The high pressure oil level measurement sensor with protective structure according to claim 2, characterized in that: The mounting base (21) and the mounting shell (22) are provided with through holes near the middle. The two through holes coincide with the central axis of the mounting hole, and the diameter of the through holes is larger than the diameter of the mounting hole.

5. The high-pressure oil level measuring sensor with a protective structure according to claim 4, characterized in that: An mounting ring (11) is fixedly provided on the sensor body (1) near the top. When the sensor body (1) is in use, the mounting ring (11) is located on the outside of the tank (3) and inside the through hole.

6. The high pressure oil level measurement sensor with protective structure according to claim 5, characterized in that: The mounting ring (11) has an annular groove on its side wall, which corresponds to the position of the arc blade (24). When the arc blade (24) enters the interior of the annular groove, the mounting ring (11) and the sensor body (1) are fixed to the tank (3) by the arc blade (24).

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