Oil pool liquid level detection device

Abstract

The utility model discloses an oil pool liquid level detection device which comprises a detection frame (1) installed on the bottom face of an oil pool, the middle of the detection frame (1) is rotationally connected with an oscillating rod (2), one end of the oscillating rod (2) is connected with a floating ball (3), a trigger part (4) is arranged on the portion, on the top of the floating ball (3), of the oscillating rod (2), and a limiting switch (5) fixedly connected with the detection frame (1) is arranged outside the trigger part (4). When the liquid level in the oil pool reaches a threshold value, the floating ball (3) drives the swing rod (2) to rotate and rise under the action of buoyancy, and the trigger part (4) triggers the limit switch (5) after rotating. According to the utility model, the liquid level in the oil pool can be detected, and the oil pump is triggered to extract after the liquid level in the oil pool reaches a specified height.

Description

Technical Field

[0001] The utility model relates to a liquid level detection device, in particular to an oil pool liquid level detection device. Background Art

[0002] At present, when cold heading machines process cold heading products, they need to be de-oiled by de-oiling devices after the cold heading products are processed. After the oil is separated from the cold heading products, it enters the oil pool for temporary storage, and the oil in the oil pool is regularly extracted by an oil pump to avoid the oil overflow in the oil pool. However, the defect of this extraction method is that due to the large temperature difference in the working environment of the cold heading machine at different times of the year, the oil in the oil pool will also change in volume due to the temperature; and this leads to this timed extraction method, which is easy to cause the oil in the oil pool to continue to accumulate after expansion, thereby causing overflow problems and affecting the working stability of the equipment.

[0003] On the other hand, since the cold heading machine de-oiling pool is a flat trough structure, the height of the oil pool is generally around 50 to 80 mm, which makes it difficult to use conventional liquid level sensors to detect the liquid level of the oil pool, making it impossible for manufacturers to extract according to the liquid level height in the oil pool.

[0004] Therefore, the existing method for extracting oil from the oil remover of the cold heading machine has the problem of poor extraction stability. Utility Model Content

[0005] The utility model aims to provide an oil pool liquid level detection device, which can detect the liquid level in the oil pool and trigger an oil pump to extract oil when the liquid level in the oil pool reaches a specified height.

[0006] The technical solution of the utility model is as follows: an oil pool liquid level detection device comprises a detection frame installed on the bottom surface of the oil pool, a swing rod is rotatably connected to the middle part of the detection frame, one end of the swing rod is connected to a float, a trigger part is provided on the swing rod at the top of the float, and a limit switch fixedly connected to the detection frame is provided on the outside of the trigger part; when the liquid level in the oil pool reaches a threshold value, the float is driven by the buoyancy to rotate and rise the swing rod, and the trigger part triggers the limit switch after the rotation.

[0007] In the aforementioned oil pool level detection device, a counterweight block is provided at the end of the swing rod away from the float.

[0008] In the aforementioned oil pool level detection device, a horizontal axis is rotatably connected to the detection frame, the horizontal axis and the detection frame are arranged perpendicular to each other, and the swing rod is fixedly connected to the horizontal axis.

[0009] In the aforementioned oil pool level detection device, a slide groove slidably connected to the swing rod is provided in the middle of the horizontal axis, a set screw is threadedly connected to one side of the slide groove, and the end of the set screw extends into the slide groove and fits the swing rod.

[0010] In the aforementioned oil pool level detection device, a transverse axis is fixedly connected to the detection frame, the transverse axis and the detection frame are arranged perpendicular to each other, and the swing arm is rotatably connected to the transverse axis.

[0011] In the aforementioned oil pool level detection device, a sleeve is provided in the middle of the swing rod, and the transverse axis and the sleeve are nested and rotatably connected with each other.

[0012] In the aforementioned oil pool level detection device, the limit switch is arranged on the detection frame at an angle, one side of the limit switch is connected to the detection frame by a screw, and the other side of the limit switch forms a supporting surface. The outer side of the supporting surface is provided with a supporting part detachably connected to the detection frame, and the supporting part lifts and clamps the limit switch via the supporting surface below the limit switch.

[0013] Compared with the prior art, the utility model has the following characteristics:

[0014] (1) The utility model uses the structural coordination of the limit switch, the swing rod and the float ball so that the float ball can rise and fall with the liquid level in the oil pool after installation, and drive the trigger part on the swing rod to rotate and rise on the detection frame during the rising and falling process; when the liquid level in the oil pool reaches the height threshold, the trigger part can rotate to the high position and trigger the limit switch to achieve liquid level detection and alarm effect; when the oil in the oil pool is sucked, the trigger part drops and disengages from the limit switch, and the alarm effect is released; and with the above coordination, the utility model can realize real-time detection of the liquid level in the oil pool, and stably trigger the oil pump to extract after the liquid level reaches the height threshold;

[0015] (2) On the basis of the above, the present invention also makes specific restrictions on the connection structure of the swing rod and the limit switch, so that the manufacturer can change the oil pool liquid level when the limit switch is triggered by adjusting the installation position of the swing rod and the limit switch, that is, improve the detection effect of the present invention;

[0016] Therefore, the utility model can detect the liquid level in the oil pool and trigger the oil pump to extract after the liquid level in the oil pool reaches a specified height. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of Example 1;

[0018] Figure 2 is a schematic structural diagram of Example 2;

[0019] Figure 3 It is a structural schematic diagram of Example 3.

[0020] The markings in the attached drawings are: 1-detection frame, 2-swing rod, 3-float, 4-trigger part, 5-limit switch, 6-counterweight, 7-horizontal axis, 8-slide, 9-set screw, 10-sleeve, 11-support part. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0022] Embodiment 1. An oil pool level detection device, comprising: Figure 1 As shown, it includes a detection frame 1 installed on the bottom surface of the oil pool, the middle part of the detection frame 1 is rotatably connected with a swing rod 2, one end of the swing rod 2 is connected with a float 3, and a trigger part 4 is provided on the swing rod 2 at the top of the float 3. The trigger part 4 is a flat plate welded to the end of the swing rod 2, the float 3 is fixed to the lower end of the flat plate, and a limit switch 5 fixedly connected to the detection frame 1 is provided on the outside of the trigger part 4; when the liquid level in the oil pool reaches the threshold value, the float 3 is driven by the buoyancy to rotate and rise the swing rod 2, and the trigger part 4 triggers the limit switch 5 after rotating.

[0023] The swing rod 2 is welded with a counterweight 6 at one end away from the float 3 .

[0024] The detection frame 1 is rotatably connected with a transverse axis 7 , the transverse axis 7 and the detection frame 1 are arranged perpendicular to each other, and the swing rod 2 is welded to the transverse axis 7 .

[0025] The limit switch 5 is screwed around the detection frame 1 and is arranged in an inclined manner.

[0026] When in use, this embodiment is directly placed in the oil pool of the cold heading machine degreasing device. When the liquid level in the oil pool rises, the oil drives the float 3 to float upward due to buoyancy, and after floating, the float 3 drives the trigger part 4 to rotate upward and contact the limit switch 5. When the liquid level in the oil pool reaches the threshold, the trigger part 4 rotates to the high position and triggers the limit switch 5, so that the limit switch 5 can control the oil pump to start and suck the oil in the oil pool after being triggered. After the oil in the oil pool is sucked, the float 3 is driven by the trigger part 4 to drop again under the action of gravity and release the trigger of the limit switch 5, achieving a reset effect.

[0027] Embodiment 2. An oil pool level detection device, comprising: Figure 2As shown, it includes a detection frame 1 installed on the bottom surface of the oil pool, the middle part of the detection frame 1 is rotatably connected with a swing rod 2, one end of the swing rod 2 is connected with a float 3, and a trigger part 4 is provided on the swing rod 2 at the top of the float 3. The trigger part 4 is a flat plate welded to the end of the swing rod 2, the float 3 is fixed to the lower end of the flat plate, and a limit switch 5 fixedly connected to the detection frame 1 is provided on the outside of the trigger part 4; when the liquid level in the oil pool reaches the threshold value, the float 3 is driven by the buoyancy to rotate and rise the swing rod 2, and the trigger part 4 triggers the limit switch 5 after rotating.

[0028] The swing rod 2 is welded with a counterweight 6 at one end away from the float 3 .

[0029] A transverse axis 7 is fixedly connected to the detection frame 1, and the transverse axis 7 and the detection frame 1 are arranged perpendicular to each other. A sleeve 10 is provided in the middle of the swing rod 2, and the transverse axis 7 and the sleeve 10 are nested and rotatably connected to each other. Baffles can be installed on the transverse axis 7 on both sides of the sleeve 10 to limit the sleeve 10.

[0030] The limit switch 5 is arranged on the detection frame 1 at an angle, one side of the limit switch 5 is connected to the detection frame 1 by a screw, and the other side of the limit switch 5 forms a supporting surface. The outer side of the supporting surface is provided with a supporting part 11 detachably connected to the detection frame 1, and the supporting part 11 is below the limit switch 5 and lifts and clamps the limit switch 5 via the supporting surface.

[0031] The detection frame 1 is provided with a horizontal long hole, and the support portion 11 is fixed in the long hole via a nut to achieve a lifting effect.

[0032] Compared with Example 1, this embodiment, through the coordinated arrangement of the support portion 11 and the long hole, on the one hand, enables the limit switch 5 to be adjusted in angle according to the lateral position of the trigger portion 4, thereby ensuring its triggering effect; on the other hand, the manufacturer can also adjust the height position of the trigger portion 4 when triggered by changing the inclination angle of the limit switch 5, that is, adjust the liquid level height threshold in the oil pool, thereby improving the applicability of the device.

[0033] Embodiment 3. An oil pool level detection device, comprising: Figure 3 As shown, it includes a detection frame 1 installed on the bottom surface of the oil pool, the middle part of the detection frame 1 is rotatably connected with a swing rod 2, one end of the swing rod 2 is connected with a float 3, and a trigger part 4 is provided on the swing rod 2 at the top of the float 3. The trigger part 4 is a flat plate welded to the end of the swing rod 2, the float 3 is fixed to the lower end of the flat plate, and a limit switch 5 fixedly connected to the detection frame 1 is provided on the outside of the trigger part 4; when the liquid level in the oil pool reaches the threshold value, the float 3 is driven by the buoyancy to rotate and rise the swing rod 2, and the trigger part 4 triggers the limit switch 5 after rotating.

[0034] The swing rod 2 is threadedly connected with a counterweight 6 at one end away from the float 3 .

[0035] The detection frame 1 is rotatably connected with a transverse axis 7, and the transverse axis 7 and the detection frame 1 are arranged perpendicular to each other. A sliding groove 8 is provided in the middle of the transverse axis 7 for sliding connection with the swing rod 2. A set screw 9 is threadedly connected to one side of the sliding groove 8. The end of the set screw 9 extends into the sliding groove 8 and fits the swing rod 2. The middle part of the swing rod 2 passes through the sliding groove 8 and is fixed by the set screw 9.

[0036] The limit switch 5 is arranged on the detection frame 1 at an angle, one side of the limit switch 5 is connected to the detection frame 1 by a screw, and the other side of the limit switch 5 forms a supporting surface. The outer side of the supporting surface is provided with a supporting part 11 detachably connected to the detection frame 1, and the supporting part 11 is below the limit switch 5 and lifts and clamps the limit switch 5 via the supporting surface.

[0037] The detection frame 1 is provided with a horizontal long hole, and the support portion 11 is fixed in the long hole via a nut to achieve a lifting effect.

[0038] Compared with Example 2, this embodiment adjusts the connection structure between the swing rod 2 and the horizontal axis 7, so that the swing rod 2 can adjust the force arms on the left and right sides through lateral movement, thereby ensuring that the float 3 floats stably and triggers the limit switch 5 after the oil reaches the liquid level height threshold, and falls stably after the liquid level drops and releases the trigger of the limit switch 5, thereby ensuring its use effect.

Claims

1. Oil pool level detection device, characterized in that: The invention comprises a detection frame (1) installed on the bottom surface of an oil pool, wherein the middle part of the detection frame (1) is rotatably connected to a swing rod (2), one end of the swing rod (2) is connected to a float ball (3), a trigger part (4) is provided on the swing rod (2) at the top of the float ball (3), the trigger part (4) is a flat plate welded to the end of the swing rod (2), the float ball (3) is fixed to the lower end of the flat plate, and a limit switch (5) fixedly connected to the detection frame (1) is provided on the outside of the trigger part (4); when the liquid level in the oil pool reaches a threshold value, the float ball (3) is driven by the buoyancy to rotate and rise the swing rod (2), and the trigger part (4) triggers the limit switch (5) after the rotation.

2. The oil pool level detection device according to claim 1, characterized in that: The swing rod (2) is provided with a counterweight (6) at one end away from the floating ball (3).

3. The oil pool liquid level detection device according to claim 1, characterized in that: The detection frame (1) is rotatably connected to a transverse axis (7), the transverse axis (7) and the detection frame (1) are arranged perpendicular to each other, and the swing rod (2) is fixedly connected to the transverse axis (7).

4. The oil pool level detection device according to claim 3, characterized in that: A sliding groove (8) slidably connected to the swing rod (2) is provided in the middle of the transverse axis (7), a set screw (9) is threadedly connected to one side of the sliding groove (8), and the end of the set screw (9) extends into the sliding groove (8) and fits the swing rod (2).

5. The oil pool level detection device according to claim 1, characterized in that: A transverse axis (7) is fixedly connected to the detection frame (1), the transverse axis (7) and the detection frame (1) are arranged perpendicular to each other, and the swing rod (2) is rotatably connected to the transverse axis (7).

6. The oil pool level detection device according to claim 5, characterized in that: A sleeve (10) is provided in the middle of the swing rod (2), and the transverse axis (7) and the sleeve (10) are mutually nested and rotatably connected.

7. The oil pool level detection device according to claim 1, characterized in that: The limit switch (5) is arranged on the detection frame (1) in an inclined manner, one side of the limit switch (5) is connected to the detection frame (1) by a screw, and the other side of the limit switch (5) forms a support surface, and a support part (11) detachably connected to the detection frame (1) is provided on the outer side of the support surface, and the support part (11) is below the limit switch (5) and lifts and clamps the limit switch (5) via the support surface.

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