External oil level monitor for lubricating oil tank

Abstract

The utility model belongs to the technical field of oil tank oil level monitors, and particularly relates to an oil level monitor for an external lubricating oil tank, which comprises a lubricating oil tank, an oil tank frame arranged on the outer side of the lubricating oil tank, an interface seat arranged on the top of the lubricating oil tank, a sleeve arranged on the inner side of the interface seat, and a pressure sensor arranged on the sleeve. A rubber sleeve is installed at the end, extending into the threaded connecting ring, of the sleeve, a probe rod is arranged in the sleeve, the probe rod is sleeved with the sleeve, the sleeve is in clearance fit with the probe rod, the end, away from the rubber sleeve, of the probe rod protrudes out of the top of the sleeve, an oil level gauge is installed at the end, close to the rubber sleeve, of the probe rod, and a through hole corresponding to the oil level gauge and allowing the oil level gauge to penetrate through is formed in the rubber sleeve. According to the oil level monitor for the external lubricating oil tank, the rubber sleeve capable of allowing the oil level gauge to stretch out and draw back is arranged at one end of the sleeve, and the oil level gauge is retracted into the rubber sleeve during disassembly, so that the oil level gauge is prevented from being collided when the oil level gauge is taken out of the interface seat.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank oil level monitors, in particular to an oil level monitor for an external lubricating oil tank. Background Art

[0002] An external lubricating oil tank is an essential component of many mechanical equipment. It can store and supply lubricating oil independently of the equipment itself, providing reliable lubrication guarantee for the normal operation of the equipment. In the automotive field, in order to ensure that the engine can be continuously filled with lubricating oil, the lubricating oil is usually tested for oil contamination.

[0003] Most existing monitoring methods involve installing a monitoring structure including an oil level gauge on the lubricating oil tank. This presents the following problems in actual operation:

[0004] 1) The monitoring mechanism is usually inserted into the threaded joint of the lubricating oil tank, and the end of the monitoring mechanism with the oil level gauge is located in the lubricating oil tank. However, when the monitoring mechanism needs to be removed from the lubricating oil tank, the oil level gauge in the lubricating oil tank is likely to collide with the threaded joint, which can easily cause damage to the oil level gauge;

[0005] 2) During monitoring, the oil level gauge of the monitoring mechanism needs to be placed in the lubricating oil tank and not in contact with the interior of the lubricating oil tank. When the oil level gauge of the monitoring mechanism is long, it is easy to contact the bottom of the lubricating oil tank, affecting the monitoring results. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the inventors have conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0007] Specifically, the technical problem to be solved by the present invention is to provide an oil level monitor for an external lubricating oil tank, so as to solve the problem that the monitoring mechanism is inserted into the threaded joint of the lubricating oil tank, and one end of the monitoring device with an oil level gauge is located in the lubricating oil tank, but when the monitoring mechanism needs to be removed from the lubricating oil tank, the oil level gauge located in the lubricating oil tank is prone to collide with the threaded interface, which can easily cause damage to the oil level gauge.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] An oil level monitor for an external lubricating oil tank comprises a lubricating oil tank, an oil tank frame fixedly mounted on the outside of the lubricating oil tank, an interface seat provided on the top of the lubricating oil tank, the interface seat fixedly mounted on the top of the oil tank frame, and a sleeve provided on the inside of the interface seat, the sleeve being located above the lubricating oil tank;

[0010] The sleeve extends to one end of the threaded ring and is fixedly installed with a rubber sleeve. A probe rod is provided in the sleeve, and the sleeve is sleeved on the probe rod, and the sleeve and the probe rod are loosely matched. The end of the probe rod away from the rubber sleeve protrudes from the top of the sleeve, and an oil level gauge is fixedly installed on the end of the probe rod close to the rubber sleeve, and a through hole corresponding to the oil level gauge and for the oil level gauge to pass through is opened in the rubber sleeve.

[0011] As an improved technical solution, a spring is further provided in the sleeve, the spring is sleeved on the probe rod, and a convex ring is fixedly installed on the outer side of the probe rod, and the two ends of the spring are respectively connected to the sleeve and the convex ring.

[0012] As an improved technical solution, a card slot is opened on the outside of the sleeve, and the card slot includes a transverse groove and a longitudinal groove, and the transverse grooves in the card slot are distributed parallel to the two ends of the longitudinal groove in the card slot, and the transverse grooves in the card slot are connected to each other through the longitudinal groove in the card slot, and one end of the convex ring protrudes from the card slot and extends outside the sleeve.

[0013] As an improved technical solution, a sliding groove is provided on the outer side of the sleeve, and the sleeve is movably connected to a threaded ring through the sliding groove. The sleeve passes through the entire threaded ring, and the threaded ring and the sleeve are loosely matched. The threaded ring is threadedly connected to the interface seat through a threaded connecting ring.

[0014] As an improved technical solution, a slider is fixedly connected to the outer side of the threaded ring, the threaded ring is movably connected to the interface seat through the slider, and the slider is threadedly connected to the interface seat through a threaded shaft, and a sliding rod arranged parallel to the threaded shaft is rotatably installed on the outside of the interface seat.

[0015] As an improved technical solution, the lubricating oil tank is respectively equipped with an oil supply pump, a pressure gauge and a ventilation fire stopper through an oil tank frame, and one end of the oil supply pump, the pressure gauge and the ventilation fire stopper are all located in the lubricating oil tank.

[0016] As an improved technical solution, an oil supply pipe and an oil filling pipe are fixedly installed on the lubricating oil tank, and one end of the oil supply pipe and the oil filling pipe extend into the lubricating oil tank. The oil supply pipe and the oil filling pipe are both provided with solenoid valves. The oil filling pipe is connected to the lubricating oil tank through an oil replenishing pump, and the oil replenishing pump is connected to the oil level gauge through an electrical signal.

[0017] After adopting the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The utility model increases the length of the probe rod protruding from the sleeve by pulling the probe rod protruding from the top of the sleeve. The oil level gauge connected to the probe rod and protruding from the rubber sleeve and located in the lubricating oil in the lubricating oil tank passes through the through hole in the rubber sleeve and retracts into the rubber sleeve, thereby avoiding collision with the oil level gauge when taking it out from the interface seat.

[0019] 2. The utility model removes the convex ring from the transverse groove in the card slot. As the extension length of the spring increases, the oil level gauge is pushed to move in the longitudinal groove in the card slot. After the oil level gauge completely protrudes from the rubber sleeve, it is located in the lubricating oil in the lubricating oil tank, thereby ensuring the normal operation of the oil level gauge.

[0020] 3. The utility model rotates the threaded shaft to move the slider along the axial direction of the slide rod in the interface seat, thereby changing the height of the threaded collar connected by the thread in the interface seat, thereby preventing the oil level gauge on the rubber sleeve in the interface seat from extending too far into the lubricating oil tank, causing data errors.

[0021] 4. The utility model ensures the safety of the oil supply pump during operation through the pressure gauge and the ventilation flame arrester. When the oil level gauge is at a low oil level, the solenoid valve starts the oil replenishment pump to add lubricating oil to the lubricating oil tank. When the oil level gauge reaches a high level, the refueling stops, thereby ensuring the continuous operation of the lubricating oil in the lubricating oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the oil level monitoring system for the external lubricating oil tank of the utility model.

[0024] Figure 2 This is a schematic diagram of the related structures of the oil supply pump and tank rack for oil level monitoring of the external lubricating oil tank of the utility model.

[0025] Figure 3 This is a schematic diagram of the related structure of the interface seat and sleeve for oil level monitoring of the external lubricating oil tank of the utility model.

[0026] Figure 4 This is an exploded diagram of the interface seat and threaded collar related structures for oil level monitoring of an external lubricating oil tank of the utility model.

[0027] Figure 5 This is a schematic cross-sectional view of the sleeve and oil level gauge related structures for oil level monitoring of an external lubricating oil tank of the present invention.

[0028] Description of reference numerals:

[0029] 1. Lubricating oil tank; 2. Oil tank frame; 3. Interface seat; 4. Sleeve; 5. Rubber sleeve; 6. Probe rod; 7. Oil level gauge; 8. Spring; 9. Raised ring; 10. Slot; 11. Slide; 12. Threaded collar; 13. Threaded adapter; 14. Slider; 15. Threaded shaft; 16. Slide rod; 17. Oil supply pump; 18. Pressure gauge; 19. Vent flame arrester; 20. Oil supply pipe; 21. Oil filling pipe; 22. Solenoid valve; 23. Oil replenishment pump. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0033] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown together, this embodiment provides an oil level monitor for an external lubricating oil tank, which includes a lubricating oil tank 1. A tank frame 2 is fixedly installed on the outside of the lubricating oil tank 1. An interface seat 3 is provided on the top of the lubricating oil tank 1. The interface seat 3 is fixedly installed on the top of the tank frame 2, and a sleeve 4 is provided on the inner side of the interface seat 3. The sleeve 4 is located above the lubricating oil tank 1, and one end of the sleeve 4 extending to the threaded ring 13 is fixedly installed with a rubber sleeve 5. A probe rod 6 is provided in the sleeve 4, and the sleeve 4 is sleeved on the probe rod 6, and the sleeve 4 and the probe rod 6 are clearance-matched. The end of the probe rod 6 away from the rubber sleeve 5 protrudes from the top of the sleeve 4, and the end of the probe rod 6 close to the rubber sleeve 5 is fixedly installed with an oil level gauge 7, and the rubber sleeve 5 is provided with a Corresponding to the oil level gauge 7 and for the oil level gauge 7 to pass through, the oil tank frame 2 is provided with a threaded hole for fixing the lubricating oil tank 1. During assembly, the sleeve 4 is inserted into the interface seat 3 and fixed on the oil tank frame 2, and does not extend into the lubricating oil tank 1. The rubber sleeve 5 and the sleeve 4 are plug-in structures, and after assembly is completed, they are located in the lubricating oil tank 1 but do not contact the lubricating oil. The probe rod 6 can move in the sleeve 4, thereby changing the height of the oil level gauge 7 in the lubricating oil tank 1. After assembly, the oil level gauge 7 is located in the lubricating oil and monitors the lubricating oil level in the lubricating oil tank 1 in real time. When disassembling, the oil level gauge 7 can be retracted into the rubber sleeve 5 through the through hole in the rubber sleeve 5, thereby avoiding collision with the oil level gauge 7 when the oil level gauge 7 is removed from the interface seat 3.

[0035] A spring 8 is also provided in the sleeve 4. The spring 8 is sleeved on the probe rod 6, and a convex ring 9 is fixedly installed on the outer side of the probe rod 6. The two ends of the spring 8 are connected to the sleeve 4 and the convex ring 9 respectively. When the spring 8 is in an extended state, it pushes the convex ring 9 in the sleeve 4 to approach one end of the rubber sleeve 5, and at this time the oil level gauge 7 protrudes from the rubber sleeve 5 and is located in the lubricating oil in the lubricating oil tank 1.

[0036] A slot 10 is provided on the outside of the sleeve 4. The slot 10 includes a transverse slot and a longitudinal slot. The transverse slots in the slot 10 are parallel to the two ends of the longitudinal slot in the slot 10, and the transverse slots in the slot 10 are connected to each other through the longitudinal slot in the slot 10. One end of the convex ring 9 protrudes from the slot 10 and extends to the outside of the sleeve 4. The convex ring 9 can move in the longitudinal slot in the slot 10, thereby changing the length of the oil level gauge 7 protruding from the rubber sleeve 5, and when the convex ring 9 is located in the transverse slot in the slot 10, the oil level gauge 7 is fully extended or retracted in the rubber sleeve 5.

[0037] A sliding groove 11 is provided on the outer side of the sleeve 4, and the sleeve 4 is movably connected to a threaded collar 12 through the sliding groove 11. The sleeve 4 passes through the entire threaded collar 12, and the threaded collar 12 and the sleeve 4 are clearance-matched. The threaded collar 12 is threadedly connected to the interface seat 3 through a threaded connecting ring 13. The threaded collar 12 can slide along the axis of the sleeve 4 through the sliding groove 11, so that the connecting end of the sleeve 4 and the rubber sleeve 5 is always located in the interface seat 3. A thread that is compatible with the threaded connecting ring 13 is provided on the outer side of the threaded collar 12, and after the docking is completed, the sleeve 4 is fixed to the inner side of the interface seat 3.

[0038] A slider 14 is fixedly connected to the outside of the threaded ring 13, and the threaded ring 13 is movably connected to the interface seat 3 through the slider 14, and the slider 14 is threadedly connected to the interface seat 3 through the threaded shaft 15. A slide rod 16 arranged parallel to the threaded shaft 15 is rotatably installed on the outside of the interface seat 3. One end of the slider 14 is provided with a thread that matches the threaded shaft 15, and when the threaded shaft 15 rotates, the threaded ring 13 connected to the slider 14 moves along the axial direction of the slide rod 16, thereby changing the height of the threaded ring 13 in the interface seat 3, preventing the oil level gauge 7 on the rubber sleeve 5 in the interface seat 3 from extending too long into the lubricating oil tank 1, causing data errors.

[0039] like Figure 1 and Figure 2 As shown together, the lubricating oil tank 1 is respectively equipped with an oil supply pump 17, a pressure gauge 18 and a ventilation and flame arrester cap 19 through the oil tank frame 2. One end of the oil supply pump 17, the pressure gauge 18 and the ventilation and flame arrester cap 19 are all located in the lubricating oil tank 1. The oil supply pump 17 can extract the lubricating oil from the lubricating oil tank 1 and continuously add fresh lubricating oil to the engine oil pan. The pressure gauge 18 can observe the pressure changes in the lubricating oil tank 1 at any time to ensure safe use.

[0040] An oil supply pipe 20 and an oil filling pipe 21 are also fixedly installed on the lubricating oil tank 1, and one end of the oil supply pipe 20 and the oil filling pipe 21 extend into the lubricating oil tank 1. A solenoid valve 22 is provided on the oil supply pipe 20 and the oil filling pipe 21. The oil filling pipe 21 is connected to the lubricating oil tank 1 through an oil replenishment pump 23, and the oil replenishment pump 23 is connected to the oil level gauge 7 through an electrical signal. The oil supply pipe 20 can extract the lubricating oil in the lubricating oil tank 1 through the oil supply pump 17 and send it into the engine oil pan. The other end of the oil filling pipe 21 is connected to an external oil tank. The solenoid valve 22 can control the on-off of the oil supply pipe 20 and the oil filling pipe 21, so that the lubricating oil in the external oil tank connected to the oil filling pipe 21 is injected into the lubricating oil tank 1 through the oil replenishment pump 23, and when the oil level gauge 7 is at a low oil level, the oil replenishment pump 23 is started by the solenoid valve 22 to add lubricating oil to the lubricating oil tank 1; when the oil level gauge 7 is at a high position, the refueling stops.

[0041] When in use, the threaded connection between the threaded collar 12 installed on the sleeve 4 and the threaded collar 13 in the interface seat 3 is released, the sleeve 4 located in the threaded collar 13 and vertically inserted into the interface seat 3 is removed from the interface seat 3, and the probe rod 6 protruding from the top of the sleeve 4 is pulled, so that the length of the probe rod 6 protruding from the sleeve 4 increases, and the oil level gauge 7 connected to the probe rod 6 and protruding from the rubber sleeve 5 and located in the lubricating oil in the lubricating oil tank 1 is retracted into the rubber sleeve 5 through the through hole in the rubber sleeve 5, thereby avoiding collision with the oil level gauge 7 when the oil level gauge 7 is taken out of the interface seat 3. After the assembly is completed, the convex ring 9 is removed from the horizontal groove in the card slot 10. As the extension length of the spring 8 increases, the oil level gauge 7 is pushed to move in the longitudinal groove in the card slot 10, and after the oil level gauge 7 is completely protruded from the rubber sleeve 5, it is located in the lubricating oil in the lubricating oil tank 1, thereby ensuring the oil level. The normal operation of the gauge 7 is ensured, and in this process, the threaded shaft 15 is rotated to make the threaded slider 14 move in the interface seat 3 along the axial direction of the slide rod 16, thereby changing the height of the threaded sleeve 12 in the interface seat 3, thereby preventing the oil level gauge 7 on the rubber sleeve 5 in the interface seat 3 from extending too long into the lubricating oil tank 1, causing data error, and when filling the engine oil pan, the lubricating oil in the lubricating oil tank 1 is extracted by the oil supply pump 17 and then fresh lubricating oil is continuously added to the engine oil pan through the oil supply pipe 20. The safety of the oil supply pump 17 during operation is ensured by the pressure gauge 18 and the ventilation flame arrester 19, and when the oil level gauge 7 is at a low oil level, the oil replenishment pump 23 is started by the solenoid valve 22 to add lubricating oil to the lubricating oil tank 1. When the oil level gauge 7 reaches a high position, the refueling stops, thereby ensuring that the lubricating oil in the lubricating oil tank 1 continues to work.

[0042] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. An oil level monitor for an external lubricating oil tank, comprising a lubricating oil tank (1), characterized in that: An oil tank frame (2) is fixedly mounted on the outside of the lubricating oil tank (1), an interface seat (3) is provided on the top of the lubricating oil tank (1), the interface seat (3) is fixedly mounted on the top of the oil tank frame (2), and a sleeve (4) is provided on the inside of the interface seat (3), and the sleeve (4) is located above the lubricating oil tank (1); The sleeve (4) extends to one end of the threaded ring (13) and is fixedly mounted with a rubber sleeve (5). A probe rod (6) is provided in the sleeve (4), and the sleeve (4) is sleeved on the probe rod (6). The sleeve (4) and the probe rod (6) are clearance-matched. The end of the probe rod (6) away from the rubber sleeve (5) protrudes from the top of the sleeve (4). An oil level gauge (7) is fixedly mounted on the end of the probe rod (6) close to the rubber sleeve (5), and a through hole corresponding to the oil level gauge (7) and for the oil level gauge (7) to pass through is opened in the rubber sleeve (5).

2. The oil level monitoring device for an external lubricating oil tank according to claim 1, characterized in that: The sleeve (4) is further provided with a spring (8), which is sleeved on the probe rod (6), and a convex ring (9) is fixedly installed on the outer side of the probe rod (6), and the two ends of the spring (8) are respectively connected to the sleeve (4) and the convex ring (9).

3. The oil level monitoring device for an external lubricating oil tank according to claim 2, characterized in that: A card slot (10) is provided on the outer side of the sleeve (4), the card slot (10) comprising a transverse slot and a longitudinal slot, the transverse slots in the card slot (10) being parallel to both ends of the longitudinal slot in the card slot (10), and the transverse slots in the card slot (10) being interconnected via the longitudinal slot in the card slot (10), and one end of the convex ring (9) protruding from the card slot (10) and extending to the outside of the sleeve (4).

4. The oil level monitoring device for an external lubricating oil tank according to claim 1, characterized in that: A sliding groove (11) is provided on the outer side of the sleeve (4), and the sleeve (4) is movably connected to a threaded collar (12) through the sliding groove (11). The sleeve (4) passes through the threaded collar (12) as a whole, and the threaded collar (12) and the sleeve (4) are clearance-matched. The threaded collar (12) is threadedly connected to the interface seat (3) through a threaded connecting ring (13).

5. The oil level monitoring device for an external lubricating oil tank according to claim 4, characterized in that: The outer side of the threaded ring (13) is fixedly connected with a slider (14), the threaded ring (13) is movably connected to the interface seat (3) through the slider (14), and the slider (14) is threadedly connected to the interface seat (3) through a threaded shaft (15), and the interface seat (3) is rotatably mounted with a slide rod (16) arranged parallel to the threaded shaft (15).

6. The oil level monitoring device for an external lubricating oil tank according to claim 1, characterized in that: The lubricating oil tank (1) is respectively equipped with an oil supply pump (17), a pressure gauge (18) and a ventilation fire stop cap (19) via an oil tank frame (2); one end of the oil supply pump (17), the pressure gauge (18) and the ventilation fire stop cap (19) are all located in the lubricating oil tank (1).

7. The oil level monitoring device for an external lubricating oil tank according to claim 6, characterized in that: An oil supply pipe (20) and an oil filling pipe (21) are fixedly mounted on the lubricating oil tank (1), and one end of each of the oil supply pipe (20) and the oil filling pipe (21) extends into the lubricating oil tank (1). Each of the oil supply pipe (20) and the oil filling pipe (21) is provided with a solenoid valve (22). The oil filling pipe (21) is connected to the lubricating oil tank (1) via an oil replenishing pump (23), and the oil replenishing pump (23) is connected to an oil level gauge (7) via an electrical signal.

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