Liquid level sensor installation structure, liquid storage device and hydraulic station

Abstract

The present invention provides a liquid level sensor mounting structure, a liquid storage device and a hydraulic station. The liquid level sensor mounting structure includes a connecting seat, a partition and a liquid level sensor. The connecting seat is used to be arranged at the bottom end of the liquid storage device and is at least partially located in the liquid storage space of the liquid storage device. The connecting seat is provided with a first cavity with an opening at the lower end and a connecting hole. The connecting hole is used to connect the first cavity and the liquid storage space. The liquid level sensor is inserted into the first cavity from the opening and is detachably connected to the connecting seat. The partition is connected to the connecting seat, and the partition is suitable for moving relative to the connecting seat to block the connecting hole. The liquid level sensor mounting structure can be used in situations where the space above the liquid storage device is limited. There is no need to move the liquid storage device as a whole, and the liquid level sensor can be quickly replaced. It can also improve the stability of the liquid level in the first cavity to a certain extent, thereby improving the reliability of the detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid level detection, and in particular to a liquid level sensor installation structure, a liquid storage device and a hydraulic station. Background Art

[0002] In order to realize liquid level detection, a liquid level sensor needs to be installed in a liquid storage device such as a hydraulic oil tank. At present, the liquid level sensor basically adopts a top-mounted installation method, and the liquid level sensor can be disassembled and assembled from the top of the liquid storage device.

[0003] However, when the space above the liquid storage device is limited, the liquid storage device needs to be moved as a whole in order to disassemble and assemble the liquid level sensor. The liquid storage device is generally heavy and difficult to carry. It usually needs to be lifted with lifting equipment, which takes a long time, resulting in limitations in the installation method of the liquid level sensor. Summary of the Invention

[0004] The present invention aims to solve, to a certain extent, the problem in the related art of how to quickly disassemble and assemble a liquid level sensor, especially how to quickly disassemble and assemble a liquid level sensor when the space above a liquid storage device is limited.

[0005] To at least partially address the above-mentioned problems, in a first aspect, the present invention provides a liquid level sensor mounting structure comprising a connecting base, a partition member, and a liquid level sensor. The connecting base is configured to be disposed at the bottom end of a liquid storage device and at least partially located within a liquid storage space of the liquid storage device. The connecting base is provided with a first cavity having an opening at its lower end and a communicating hole, the communicating hole being configured to communicate the first cavity with the liquid storage space. The liquid level sensor is inserted into the first cavity through the opening and is detachably connected to the connecting base.

[0006] The partition piece is connected to the connecting seat, and the partition piece is suitable for moving relative to the connecting seat to block the communicating hole.

[0007] Optionally, the liquid level sensor mounting structure further includes a liquid draining device, which is disposed at the lower end of the connecting seat and communicates with the first cavity.

[0008] Optionally, a second cavity is provided in the side wall of the connecting seat, and the communicating hole includes a first communicating section and a second communicating section, the first communicating section being respectively communicated with the second cavity and the first cavity, and the second communicating section being respectively communicated with the second cavity and the liquid storage space;

[0009] The partition member is disposed in the second cavity, and is adapted to move relative to the connecting seat to separate or connect the first connecting section and the second connecting section.

[0010] Optionally, the partition member is a partition rod, and the partition rod is slidably connected to the connecting seat in an up-down direction;

[0011] The partition rod includes a partition section and a connecting section arranged adjacent to each other. The partition rod blocks the connecting hole through the partition section. The diameter of the connecting section is smaller than the aperture of the second cavity at the connecting hole, or a through hole is provided on the connecting section.

[0012] Optionally, the liquid level sensor mounting structure further includes a locking member, which is respectively connected to the connecting seat and the partition member, and the locking member is used to limit the movement of the partition member when the partition member blocks the connecting hole; or, it further includes a driving component, which is drivingly connected to the partition member.

[0013] Optionally, the driving assembly includes an electromagnetic driving component, an electromagnetic connecting seat is provided on the partition member, and the electromagnetic driving component is drivingly connected to the electromagnetic connecting seat.

[0014] Optionally, the driving assembly further includes a reset member, and the reset member is connected to the partition member and the connecting seat respectively;

[0015] The electromagnetic driving member is used to drive the partition member to move to block the connecting hole, and the reset member is used to drive the partition member to move to connect the connecting hole, or the electromagnetic driving member is used to drive the partition member to move to connect the connecting hole, and the reset member is used to drive the partition member to move to block the connecting hole.

[0016] Optionally, the liquid level sensor is a magnetostrictive displacement sensor.

[0017] The liquid level sensor mounting structure of the present invention allows the liquid level sensor to detect the liquid level of the liquid storage device when the first cavity and the liquid storage space of the liquid storage device are connected through the connecting hole. The provision of the connecting hole can improve the stability of the liquid surface in the first cavity to a certain extent, and can avoid, to a certain extent, the instability of the detection data of the liquid level sensor caused by the violent fluctuation of the liquid surface of the liquid storage device due to vibration, bumps, etc., thereby improving the reliability of the detection data. After the partition member moves relative to the connecting seat and blocks the connecting hole, the liquid level sensor can be removed from the bottom of the connecting seat without having to drain all the liquid from the liquid storage device. This liquid level sensor mounting structure can be used in situations where the space above the liquid storage device is limited, and the liquid level sensor can be quickly replaced without having to move the entire liquid storage device.

[0018] In a second aspect, the present invention provides a liquid storage device, comprising a box body and the liquid level sensor mounting structure as described in the first aspect above, wherein a connecting seat of the liquid level sensor mounting structure is connected to the box body.

[0019] Optionally, the connecting seat is detachably connected to the box body.

[0020] In a third aspect, the present invention provides a hydraulic station, characterized in that it includes a liquid storage device as described in the second embodiment above.

[0021] Optionally, the hydraulic station further includes a motor, and the motor is arranged at the bottom of the liquid storage device.

[0022] The liquid storage device and the hydraulic station have all the beneficial effects of the liquid level sensor installation structure, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a liquid level sensor mounting structure in an embodiment of the present invention when the communicating hole is in a blocked state;

[0024] Figure 2 This is a structural schematic diagram of the liquid level sensor mounting structure in an embodiment of the present invention when the communicating hole is in a conducting state;

[0025] Figure 3 Another structural schematic diagram of the liquid level sensor mounting structure in an embodiment of the present invention when the communicating hole is in a conducting state;

[0026] Figure 4 Another structural schematic diagram of the liquid level sensor mounting structure in an embodiment of the present invention when the communicating hole is in a blocked state;

[0027] Figure 5 This is a schematic structural diagram of a partition member in an embodiment of the present utility model;

[0028] Figure 6 This is a structural schematic diagram of a liquid level sensor installation structure including a locking member in another embodiment of the present utility model.

[0029] Description of reference numerals:

[0030] 1-connecting seat, 11-first cavity, 12-connecting hole, 121-first connecting section, 122-second connecting section, 13-second cavity, 131-guide ring, 132-first sealing ring, 133-second sealing ring, 134-sealing assembly, 135-buffer sealing ring, 2-partitioning piece, 21-partitioning section, 22-connecting section, 3-liquid level sensor, 4-discharging device, 5-driving assembly, 51-electromagnetic driving piece, 52-resetting piece, 6-locking piece. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0034] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0035] In the accompanying drawings, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction of the arrow of the Z-axis) represents the top, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the bottom; in the accompanying drawings, the Y-axis represents the front and back position, and the positive direction of the Y-axis (that is, the direction of the arrow of the Y-axis) represents the front side, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the back side; it should be noted that the aforementioned Z-axis and Y-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] like Figures 1 to 4 As shown, an embodiment of the present invention provides a liquid level sensor mounting structure, which includes a connecting base 1, a partition member 2 and a liquid level sensor 3. The connecting base 1 is used to be arranged at the bottom end of the liquid storage device and is at least partially located in the liquid storage space of the liquid storage device. The connecting base 1 is provided with a first cavity 11 with an opening at the lower end and a communication hole 12. The communication hole 12 is used to connect the first cavity 11 and the liquid storage space. The liquid level sensor 3 is inserted into the first cavity 11 through the opening and is detachably connected to the connecting base 1.

[0037] The partition member 2 is connected to the connecting seat 1 , and the partition member 2 is suitable for moving relative to the connecting seat 1 to block the communicating hole 12 .

[0038] In this specification, the present invention will be described using the example of a fluid storage device being an oil tank in a hydraulic station. It should be noted that the connector 1 is at least partially located within the fluid storage space of the fluid storage device. For example, the top of the first cavity 11 is located near the top of the fluid storage device. The top of the first cavity 11 can be configured as a closed structure to prevent liquid from flowing from the top of the connector 1 into the first cavity 11, thereby enabling the liquid level sensor 3 to detect the fluid level over a wide range along the height of the fluid storage device.

[0039] There is no limitation on the arrangement of the connection base 1 . The connection base 1 can be connected to the liquid storage device by welding or can be detachably connected.

[0040] Exemplarily, the connecting seat 1 may include a tubular structure for forming the first cavity 11, the upper end of the tubular structure is closed, and a flange is provided at the lower end of the tubular structure. The connecting seat 1 is inserted into the liquid storage device from the bottom and connected to the bottom wall of the liquid storage device through the flange. The connection between the connecting seat 1 and the liquid storage device can be sealed.

[0041] It should be noted that the liquid level sensor 3 can be an insertable magneto-displacement liquid level sensor. The connection between the liquid level sensor 3 and the connecting seat 1 can be sealed to avoid liquid leakage, which requires a larger disassembly and assembly space.

[0042] The manner in which the partition member 2 is connected to the connecting base 1 is not limited. It only needs to be able to move relative to the connecting base 1 and switch the communicating hole 12 between a conducting state and a blocking state. The conducting state means that the first cavity 11 and the liquid storage space of the liquid storage device are in a conducting state, and liquid can flow between the first cavity 11 and the liquid storage space of the liquid storage device through the communicating hole 12. In this case, the liquid level sensor 3 can detect the liquid level normally. The blocking state means that the partition member 2 blocks the communicating hole 12, so that the first cavity 11 and the liquid storage space of the liquid storage device are separated, and liquid cannot flow between the first cavity 11 and the liquid storage space of the liquid storage device through the communicating hole 12. In this case, the liquid level sensor 3 can be disassembled.

[0043] In this way, when the first cavity 11 and the liquid storage space of the liquid storage device are connected through the connecting hole 12, the liquid level sensor 3 can detect the liquid level of the liquid storage device. The setting of the connecting hole 12 can improve the stability of the liquid surface in the first cavity 11 to a certain extent, and can avoid to a certain extent the instability of the detection data of the liquid level sensor 3 caused by the violent fluctuation of the liquid surface of the liquid storage device due to vibration, bumps, etc., thereby improving the reliability of the detection data. After the partition 2 moves relative to the connecting seat 1 and blocks the connecting hole 12, the liquid level sensor 3 can be removed from the bottom of the connecting seat 1 without having to drain all the liquid from the liquid storage device. This liquid level sensor installation structure can be used in situations where the space above the liquid storage device is limited. It is not necessary to move the liquid storage device as a whole, and the liquid level sensor 3 can be quickly replaced.

[0044] Alternatively, as Figures 1 to 4 As shown, the liquid level sensor installation structure further includes a liquid discharge device 4 , which is disposed at the lower end of the connecting seat 1 and communicates with the first cavity 11 .

[0045] Exemplarily, the drain device 4 includes a manual ball valve. A mounting hole is provided on the sidewall of the first cavity 11 of the connector 1. The manual ball valve communicates with the mounting hole via a connecting pipe. The mounting hole can be provided at the connection seal between the liquid level sensor 3 and the connector 1. For example, the upper edge of the connection seal is located at the axis of the mounting hole. The connecting pipe can include a metal tube and / or a rubber tube, which is not intended to be limiting.

[0046] In this way, when the liquid level sensor 3 needs to be disassembled, the liquid in the first cavity 11 can be discharged through the drainage device 4 after the partition member 2 blocks the connecting hole 12, thereby avoiding liquid leakage when the liquid level sensor 3 is removed from the bottom of the connecting seat 1.

[0047] Alternatively, as Figure 2 and Figure 4 As shown, a second cavity 13 is provided in the side wall of the connecting seat 1, and the communicating hole 12 includes a first communicating section 121 and a second communicating section 122. The first communicating section 121 is respectively connected to the second cavity 13 and the first cavity 11, and the second communicating section 122 is used to communicate with the second cavity 13 and the liquid storage space respectively.

[0048] The partition member 2 is disposed in the second cavity 13 , and the first connecting section 121 and the second connecting section 122 are connected or separated by the movement of the partition member 2 relative to the connecting seat 1 .

[0049] The partition member 2 can move in the second cavity 13 in a translational or rotational manner. For example, the partition member 2 is configured as a cylindrical structure with an opening provided on the cylindrical structure. When the partition member 2 rotates in the second cavity 13 until the opening is connected to the first connecting section 121 and the second connecting section 122 respectively, the liquid level sensor 3 can detect the liquid level in real time. When the partition member 2 is offset from the connecting hole 12 in the second cavity 13, the liquid level sensor 3 can be disassembled and assembled.

[0050] In this way, the first connecting section 121 and the second connecting section 122 are isolated or connected by the movement of the partition member 2 in the second cavity 13, thereby achieving the conduction or blocking of the connecting hole 12. The installation structure of the partition member 2 is compact and highly reliable; and the second cavity 13 can protect the partition member 12 to a certain extent.

[0051] Alternatively, as Figure 2 、 Figure 4 and Figure 5 As shown, the partition member 2 is a partition rod, and the partition rod is slidably connected to the connecting seat 1 along the up and down direction;

[0052] The partition rod includes a partition section 21 and a connecting section 22 that are adjacently arranged. The partition rod blocks the connecting hole 12 through the partition section 21 . The diameter of the connecting section 22 is smaller than the aperture of the second cavity 13 at the connecting hole 12 .

[0053] Exemplarily, the partition rod is inserted into the second cavity 13 from the bottom of the connecting seat 1 and can slide up and down relative to the connecting seat 1; multiple connecting holes 12 are equidistantly distributed in the up and down directions, and the partition rod is provided with connecting sections 22 corresponding to the number of connecting holes 12, and each connecting section 22 is provided at both ends of a partition section 21. The structure of each partition section 21 can be different and will not be described in detail here.

[0054] When the partition member 2 slides relative to the connecting seat 1 so that the position of the connecting section 22 corresponds to the position of the connecting hole 12, a liquid circulation channel is formed between the outer wall of the connecting section 22 and the inner wall of the second cavity 13, and the circulation channel is respectively connected to the first connecting section 121 and the second connecting section 122.

[0055] When the partition member 2 slides relative to the connecting base 1 so that the position of the partition section 21 corresponds to the position of the communicating hole 12, the partition section 21 separates the first communicating section 121 from the second communicating section 122, thereby sealing the communicating hole 12. The diameter of the partition section 21 can be equal to the inner diameter of the second cavity 13 at the communicating hole 12, or a sealing ring can be provided on the partition section 21 to separate the first communicating section 121 from the second communicating section 122. This will not be described in detail here.

[0056] Different from the above-mentioned arrangement of the connecting section 22, a through hole can also be provided on the connecting section 22. When the position of the connecting section 22 corresponds to the position of the connecting hole 12, the through hole is connected to the first connecting section 121 and the second connecting section 122 respectively.

[0057] In this way, the partition rod is connected to the connecting seat 1 by sliding in the up and down directions. The stability and controllability of the movement of the partition rod relative to the connecting seat 1 are high. It is also convenient to process the connecting seat 1 and the partition rod, and it is convenient to achieve the switching of the isolation and connection of the connecting hole 12 through the movement of the partition rod.

[0058] like Figure 6 As shown, optionally, the liquid level sensor mounting structure further includes a locking member 6, which is connected to the connecting seat 1 and the partition member 2 respectively, and is used to limit the movement of the partition member 2 when the partition member 2 blocks the communicating hole 12.

[0059] For example, the partition member 2 is inserted into the second cavity 13 from below, with the partition member 2 at least partially located outside the second cavity 13. A flange structure is provided at the bottom end of the partition member 2. When the partition member 2 moves upward, the communication hole 12 switches to a blocked state. When the partition member 2 moves downward, the communication hole 12 switches to a conductive state. The locking member 6 passes through the flange structure of the partition member 2 and is threadedly connected to the connecting seat 1. In this case, the movement of the partition member 2 is achieved by manually applying force.

[0060] In this case, the hydraulic sensor mounting structure may further include an elastic member disposed between the partition member 2 and the connecting seat 1. When the partition member 2 moves upward, the elastic potential energy of the elastic member increases, and when the partition member 2 moves downward, the elastic potential energy of the elastic member decreases. For example, the elastic member may be disposed at the upper end of the partition member 2. In some cases, the elastic member is the reset member described later and will not be described in detail here.

[0061] like Figure 2 and Figure 4 As shown, unlike the above-mentioned liquid level sensor mounting structure which also includes a locking member 6, this hydraulic sensor mounting structure may further include a drive assembly 5, which is drivably connected to the partition member 2. The partition member 2 is moved and locked in position by the drive assembly 5.

[0062] In this way, the locking member 6 or the driving assembly 5 can limit the movement of the partition member 2 when the partition member 2 blocks the connecting hole 12, thereby improving the stability of the connecting hole 12 in the blocked state and preventing the liquid in the liquid storage space of the liquid storage device from flowing into the first cavity 11.

[0063] Alternatively, as Figure 2 As shown in FIG4 , the driving assembly 5 includes an electromagnetic driving member 51 . An electromagnetic connection seat is provided on the partition member 2 , and the electromagnetic driving member 51 is connected to the electromagnetic connection seat by driving.

[0064] Exemplarily, the electromagnetic connection seat is configured as a magnet, the electromagnetic driving member 51 is configured as an electromagnetic coil, a cavity for accommodating the electromagnetic coil may be provided above the second cavity 13, the magnet is provided at the upper end of the partition member 2, and the movement of the partition member 2 is driven by the interaction between the magnetic field generated by the electromagnetic coil being energized and the magnet. For example, when a current in a first direction is applied to the electromagnetic coil, the partition member 2 moves upward to isolate the first connecting section 121 and the second connecting section 122; when a current in a second direction is applied to the electromagnetic coil, the partition member 2 moves downward to connect the first connecting section 121 and the second connecting section 122. At this time, the electromagnetic coil may also be de-energized, and the gravity of the partition member 2 may be used to cause it to move downward to connect the first connecting section 121 and the second connecting section 122.

[0065] The electromagnetic driving component 51 may include an iron core, and the iron core and the electromagnetic coil form an electromagnet, which will not be described in detail here.

[0066] In this way, the partition member 2 is moved by electromagnetic driving, which is convenient, fast and practical.

[0067] Optionally, the driving assembly 5 also includes a reset member 52, which is respectively connected to the partition member 2 and the connecting seat 1; the electromagnetic driving member 51 is used to drive the partition member 2 to move to block the connecting hole 12, and the reset member 52 is used to drive the partition member 2 to move to connect the connecting hole 12.

[0068] Taking the partition member 2 slidingly connected to the second cavity 13 along the up and down directions as an example, the reset member 52 includes a spring, which is arranged above the second cavity 13, and the two ends of the spring are respectively connected to the partition member 2 and the connecting seat 1. The electromagnetic driving member 51 drives the partition member 2 to move upward and block the connecting hole 12. During this process, the elastic potential energy of the spring increases. When the electromagnetic driving member 51 is powered off, the spring drives the partition member 2 to move downward and connect the connecting hole 12, and the elastic potential energy of the spring decreases.

[0069] In other embodiments, the electromagnetic driving member 51 may be used to drive the partition member 2 to move to open the communication hole 12, and the reset member 52 may be used to drive the partition member 2 to move to block the communication hole 12. Detailed description will not be given here.

[0070] In this way, the partition member 2 can be reset by the reset member 52, and the force of the reset member 52 can be used to keep the position of the partition member 2 stable, and improve the movement stability of the partition member 2 under the drive of the electromagnetic drive member 51, with high reliability and strong practicality.

[0071] like Figure 2 As shown, optionally, the reset member 52 is located at the upper end of the partition rod, and a second sealing ring 133 is provided between the upper end of the partition rod and the second cavity 13;

[0072] A through hole for the partition rod to pass through is provided at the lower end of the second cavity 13 , a first sealing ring 132 is provided between the lower end of the partition rod and the second cavity 13 , and / or a sealing assembly 134 is provided on the through hole.

[0073] It should be noted that the structures of the first sealing ring 132 and the second sealing ring 133 can be the same or different, and the partition rod can be provided with mounting grooves for mounting the first sealing ring 132 and the second sealing ring 133. The sealing assembly 134 can include a sealing cover and a sealing ring, etc., and a dust ring can also be provided at the lower end of the partition rod, which will not be described in detail here.

[0074] In this way, the through hole is provided at the lower end of the second cavity 13, which is convenient for operating the partition rod from below, such as disassembling and assembling the partition rod. The first sealing ring 132 and / or the sealing assembly 134 can prevent the liquid from flowing out of the second cavity 13 from below; the second sealing ring 133 can ensure that the liquid does not flow into the upper space of the partition rod, such as flowing into the installation space of the reset member 52; in addition, the first sealing ring 132 and the second sealing ring 133 can also make the sliding of the partition rod more stable and reliable to a certain extent.

[0075] Optionally, the liquid level sensor mounting structure further includes a buffer seal ring 135 and a guide ring 131; the buffer seal ring 135 is mounted on the partition rod, the guide ring 131 is embedded in the second cavity 13, and the guide ring 131 is slidably connected to the partition rod.

[0076] In this way, the buffer seal ring 135 can make the movement of the partition rod more stable to a certain extent, and the guide ring 131 can guide the movement of the partition rod, which is highly reliable and practical.

[0077] It should be noted that the above-mentioned partition rods can be arranged in a circular array, and each partition rod can be driven individually. Each partition rod can be used to connect or isolate multiple connecting holes 12 in the up and down directions. The cross-sectional area of ​​each connecting hole 12 along the up and down directions can be the same or different. For example, from top to bottom, the cross-sectional area of ​​the connecting hole 12 gradually increases.

[0078] Another embodiment of the present invention further provides a liquid storage device, comprising a box body and any one of the above liquid level sensor mounting structures, wherein the connecting seat 1 of the liquid level sensor mounting structure is arranged at the bottom end of the box body and is at least partially located inside the box body.

[0079] Optionally, the connecting base 1 is detachably connected to the box body.

[0080] The specific disassembly and assembly methods have been described above and will not be detailed here.

[0081] At this time, the hydraulic sensor can be disassembled and assembled from the bottom of the fluid storage device without moving the heavy oil tank as a whole.

[0082] Another embodiment of the present invention provides a hydraulic station, comprising the liquid storage device described above. In other words, the liquid storage device is an oil tank of the hydraulic station,

[0083] Optionally, the liquid storage device further comprises a motor, which is arranged at the bottom of the liquid storage device. The motor and the connecting seat 1 of the liquid level sensor mounting structure should be staggered.

[0084] For example, the hydraulic station is installed in a side room at the drilling floor of an oil drilling rig, and the bottom plate of the liquid storage device is separated from the floor of the side room by a predetermined height, thereby forming a space for accommodating the motor and operating space for the liquid storage device. For example, the liquid storage device is placed on a support frame in the side room.

[0085] Compared with the general solution of directly placing the motor on the top of the liquid storage device, the structural instability of the liquid storage device caused by the excessive weight of the high-power motor can be avoided.

[0086] This hydraulic station provides hydraulic drive for the elevators and other devices on oil drilling equipment. Due to limited space in a side room, the space above the hydraulic station is limited, making it difficult to remove the liquid level sensor from above. Removing the level sensor from above requires scheduling a time in advance and renting a crane or other construction machinery to lift the hydraulic station out. This requires the entire drilling crew to stop production for a day, impacting work efficiency and increasing costs and time.

[0087] By adopting the solution of the present invention, the liquid level sensor can be repaired and replaced in a short time when the upper space is limited, thereby reducing the maintenance cost. During this process, there is no need to move the hydraulic station.

[0088] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A liquid level sensor installation structure, characterized in that: The invention comprises a connecting seat (1), a partition member (2) and a liquid level sensor (3), wherein the connecting seat (1) is used to be arranged at the bottom end of the liquid storage device and is at least partially located in the liquid storage space of the liquid storage device, the connecting seat (1) is provided with a first cavity (11) with an opening at the lower end and a communication hole (12), the communication hole (12) is used to connect the first cavity (11) and the liquid storage space, and the liquid level sensor (3) is inserted into the first cavity (11) from the opening and is detachably connected to the connecting seat (1); The partition member (2) is connected to the connecting seat (1), and the partition member (2) is suitable for moving relative to the connecting seat (1) to block the communicating hole (12); The liquid level sensor installation structure further comprises a liquid discharge device (4), wherein the liquid discharge device (4) is arranged at the lower end of the connecting seat (1) and is in communication with the first cavity (11); A second cavity (13) is provided in the side wall of the connecting seat (1), and the communicating hole (12) comprises a first communicating section (121) and a second communicating section (122), wherein the first communicating section (121) is respectively communicated with the second cavity (13) and the first cavity (11), and the second communicating section (122) is respectively used to communicate with the second cavity (13) and the liquid storage space; The partition member (2) is arranged in the second cavity (13), and the partition member (2) is suitable for moving relative to the connecting seat (1) to separate or connect the first connecting section (121) and the second connecting section (122); The partition member (2) is a partition rod, and the partition rod is slidably connected to the connecting seat (1) in an up-down direction; The partition rod comprises a partition section (21) and a communication section (22) arranged adjacent to each other, the partition rod blocks the communication hole (12) through the partition section (21), the diameter of the communication section (22) is smaller than the diameter of the second cavity (13) at the communication hole (12), or a through hole is provided on the communication section (22).

2. The liquid level sensor installation structure according to claim 1, characterized in that: The device further comprises a locking member (6), wherein the locking member (6) is connected to the connecting seat (1) and the partition member (2) respectively, and the locking member (6) is used to limit the movement of the partition member (2) when the partition member (2) blocks the communicating hole (12); or further comprises a driving assembly (5), wherein the driving assembly (5) is drivingly connected to the partition member (2).

3. The liquid level sensor installation structure according to claim 2, characterized in that: The driving assembly (5) comprises an electromagnetic driving component (51); an electromagnetic connecting seat is provided on the partition member (2); and the electromagnetic driving component (51) is drivingly connected to the electromagnetic connecting seat.

4. The liquid level sensor installation structure according to claim 3, characterized in that: The driving assembly (5) further includes a reset member (52), wherein the reset member (52) is connected to the partition member (2) and the connecting seat (1) respectively; The electromagnetic driving member (51) is used to drive the partition member (2) to move so as to block the connecting hole (12), and the reset member (52) is used to drive the partition member (2) to move so as to connect the connecting hole (12); or, the electromagnetic driving member (51) is used to drive the partition member (2) to move so as to connect the connecting hole (12), and the reset member (52) is used to drive the partition member (2) to move so as to block the connecting hole (12).

5. The liquid level sensor installation structure according to claim 1, characterized in that: The liquid level sensor (3) is a magnetostrictive displacement sensor.

6. A liquid storage device, characterized in that: It comprises a box body and a liquid level sensor mounting structure according to any one of claims 1 to 5, wherein a connecting seat (1) of the liquid level sensor mounting structure is connected to the box body.

7. The liquid storage device according to claim 6, characterized in that The connecting seat (1) is detachably connected to the box body.

8. A hydraulic station, characterized in that: Comprising the liquid storage device according to claim 6 or 7.

9. The hydraulic station according to claim 8, characterized in that: The device further comprises a motor, which is arranged at the bottom of the liquid storage device.

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