CN216009119U - Oil level gauge for hydraulic oil tank - Google Patents
Oil level gauge for hydraulic oil tank Download PDFInfo
- Publication number
- CN216009119U CN216009119U CN202121736426.5U CN202121736426U CN216009119U CN 216009119 U CN216009119 U CN 216009119U CN 202121736426 U CN202121736426 U CN 202121736426U CN 216009119 U CN216009119 U CN 216009119U
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- China
- Prior art keywords
- oil tank
- air cavity
- oil
- fixed block
- hydraulic oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003921 oil Substances 0.000 title claims abstract description 86
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000003595 mist Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model relates to the technical field of hydraulic oil tank covers and scales, in particular to an oil scale for a hydraulic oil tank, which comprises an oil tank cover, a fixed block, an oil mist separator and a piston, wherein the oil tank cover is fixed on the oil tank cover; a lug is arranged on the oil tank cover, and an exhaust hole is arranged on the side surface of the lug; the fixed block is arranged below the oil tank cover, the scale rod is arranged below the fixed block, the groove A is vertically formed in the scale rod, the high-level line and the low-level line are arranged on the scale rod, and the scale rod is further provided with an air inlet; an air cavity A is arranged inside the fixed block, and an oil return channel and an exhaust channel are arranged in the fixed block; the oil mist separator is detachably arranged in the air cavity A, an air cavity B is also arranged in the fixed block, an air inlet channel is arranged in the fixed block, and an air outlet hole is formed in the outer wall of the air cavity B; the piston is arranged inside the air cavity B in a sliding mode, the spring B is arranged inside the air cavity B, and the spring B is connected with the inner wall of the air cavity B and the piston respectively. The utility model can effectively relieve the pressure in the hydraulic oil tank and has the function of low liquid level alarm.
Description
Technical Field
The utility model relates to the technical field of hydraulic oil tank covers and scales, in particular to an oil scale for a hydraulic oil tank.
Background
The hydraulic oil liquid level inside the hydraulic oil tank needs to be regularly checked, the checking mode is basically that the hydraulic oil tank cover is opened and the inside oil dipstick is pulled out for observation, and the hydraulic oil liquid level is too high or too low and needs to be correspondingly processed.
The oil level gauge of the existing hydraulic oil tank is fixed on the oil tank cover, the outer surface of the oil level gauge is provided with the insection, whether the corresponding liquid level information can be obtained by the hydraulic oil immersion is observed on the corresponding insection after the oil level gauge is pulled out, however, the insection is poor in the holding performance of the hydraulic oil, and the reading can be carried out only by wiping the insection after the operator is pulled out and inserting the insection again. And hydraulic oil can heat up at the in-process of apparatus work, and the inside temperature that can make hydraulic tank when the pneumatic cylinder backward flow of high temperature gets into hydraulic tank risees, causes the inside atmospheric pressure of oil tank to increase, not only can make the oil tank dilatancy warp, still can make the increase of pneumatic cylinder oil return resistance.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the background art, the utility model provides an oil level gauge for a hydraulic oil tank.
The technical scheme of the utility model is as follows: an oil dipstick for a hydraulic oil tank comprises an oil tank cover, a fixed block, an oil mist separator and a piston;
a lug is arranged on the oil tank cover, and an exhaust hole is arranged on the side surface of the lug; the fixed block is arranged below the oil tank cover, the scale rod is arranged below the fixed block, the groove A is vertically formed in the scale rod, the high-level line and the low-level line are arranged on the scale rod and are located on the side face of the groove A, the high-level line is located below the low-level line, and an air inlet hole is formed in the scale rod;
an air cavity A is arranged in the fixed block, an oil return channel and an exhaust channel are arranged in the fixed block, and the exhaust channel is communicated with the exhaust hole; the oil mist separator is detachably arranged in the air cavity A and is positioned between the exhaust channel and the oil return channel; an air cavity B is also arranged in the fixed block, the air cavity B is positioned at the inner side of the air cavity A, an air inlet channel is arranged in the fixed block, one end of the air inlet channel is communicated with the inside of the air cavity B, and the other end of the air inlet channel is communicated with the air inlet; the outer wall of the air cavity B is provided with an air outlet communicated with the interior of the air cavity B, and the air outlet is communicated with the air cavity A;
the piston slides and sets up in air cavity B's inside, and air cavity B's inside sets up spring B, and spring B's one end is connected with air cavity B's outer wall top, and the other end is connected with the piston.
Preferably, the lower part of the oil tank cover is provided with an annular sealing gasket, the annular sealing gasket is coated on the outer side of the fixing block, and the side surface of the fixing block is also provided with a spring A.
Preferably, the inner part of the groove A is provided with a plurality of grooves B with openings communicated with the groove A.
Preferably, the inside of the exhaust hole is provided with a one-way valve, and the exhaust port of the exhaust hole is also provided with a dust screen.
Preferably, a check valve is arranged inside the oil return passage.
Preferably, a liquid level sensor is arranged in the low-level line, a light alarm is arranged on the bump, and the light alarm is electrically connected with the liquid level sensor.
Preferably, the side of the lug is provided with anti-slip teeth.
Preferably, the outer surface of the fixing block is provided with thread teeth.
Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:
through the arrangement of the spring A and the annular sealing gasket, the oil tank cover can be easily loosened under the action of the tension of the spring A after being tightly covered by the spring A, and the sealing performance of the oil tank cover is further improved by the annular sealing gasket; the oil tank is provided with the matching structure of the air cavity A and the air cavity B, the oil mist separator is arranged in the air cavity A, air in the oil tank enters the air cavity A from the air outlet of the air cavity B, gas is discharged under the separation action of the oil mist separator, and hydraulic oil flows back to the inside of the oil tank, so that the problem that the air pressure in the oil tank is too high is solved; the utility model also has good dustproof and gas backflow prevention performance; meanwhile, the utility model has the advantages of stable connection among the structural components, convenient cleaning and replacement, high practicability and suitability for popularization.
Drawings
Fig. 1 is a schematic structural diagram of an oil level gauge for a hydraulic oil tank according to the present invention.
Fig. 2 is a cross-sectional view of a fixed block in an oil level gauge for a hydraulic oil tank according to the present invention.
Reference numerals: 1. a fuel tank cap; 2. a bump; 3. an exhaust hole; 4. a fixed block; 5. a spring A; 6. an annular seal; 7. a scale bar; 8. a groove A; 9. a high bit line; 10. a low bit line; 11. a groove B; 12. An air inlet; 13. an air cavity A; 14. an oil return passage; 15. an exhaust passage; 16. an oil mist separator; 17. a one-way valve; 18. an air cavity B; 19. an air intake passage; 20. an air outlet; 21. a spring B; 22. a piston.
Detailed Description
Example one
As shown in fig. 1-2, the oil level gauge for a hydraulic oil tank according to the present invention comprises an oil tank cap 1, a fixed block 4, an oil mist separator 16 and a piston 22;
the fuel tank cover 1 is provided with a convex block 2, and the side surface of the convex block 2 is provided with an exhaust hole 3; the fixing block 4 is arranged below the oil tank cover 1, the scale rod 7 is arranged below the fixing block 4, a groove A8 is vertically formed in the scale rod 7, the scale rod 7 is provided with a high line 9 and a low line 10, the high line 9 and the low line 10 are both located on the side face of the groove A8, the high line 9 is located below the low line 10, and an air inlet 12 is further formed in the scale rod 7;
an air cavity A13 is arranged inside the fixed block 4, an oil return channel 14 and an exhaust channel 15 are arranged inside the fixed block 4, and the exhaust channel 15 is communicated with the exhaust hole 3; the oil mist separator 16 is detachably arranged in the air chamber a13, and the oil mist separator 16 is positioned between the exhaust passage 15 and the oil return passage 14; an air cavity B18 is further arranged in the fixed block 4, the air cavity B18 is located on the inner side of the air cavity A13, an air inlet channel 19 is arranged in the fixed block 4, one end of the air inlet channel 19 is communicated with the inside of the air cavity B18, and the other end of the air inlet channel is communicated with the air inlet 12; the outer wall of the air cavity B18 is provided with an air outlet 20 communicated with the inside of the air cavity B18, and the air outlet 20 is communicated with the air cavity A13;
the piston 22 is arranged inside the air chamber B18 in a sliding mode, a spring B21 is arranged inside the air chamber B18, one end of the spring B21 is connected with the top of the outer wall of the air chamber B18, and the other end of the spring B21 is connected with the piston 22.
In the utility model, the oil tank cover 1 is screwed and installed, and the depth of the hydraulic oil in the oil tank can be determined by observing the groove B which is formed by accumulating the hydraulic oil on the scale rod 7; when the device works, hydraulic oil is heated, high-temperature hydraulic oil after being heated flows back to enter the oil tank to expand gas inside the oil tank, so that the air pressure inside the oil tank is increased, when the air pressure is increased, the expanded gas enters the fixing block 4 along the air inlet hole 12 and enters the air chamber B18 through the air inlet channel 19, the gas pushes the piston 22 and enables the piston to move to the position above the air outlet hole 20, then the gas enters the air chamber A13, the gas is separated in the air chamber A13 through the oil mist separator 16, oil is retained inside the air chamber A13, and the oil flows back again to enter the oil tank along the oil return channel 14.
Example two
As shown in fig. 2, compared with the first embodiment, the oil level indicator for the hydraulic oil tank provided by the present invention has a check valve inside the exhaust hole 3, and a dust screen is further disposed at the exhaust port of the exhaust hole 3; the check valve in the exhaust hole 3 effectively blocks the outside air outside to prevent the outside air from entering the oil tank, and the dust screen effectively prevents the outside dust from entering the oil tank or blocking the exhaust hole 3.
A check valve 17 is arranged in the oil return channel 14; the check valve inside the oil return passage 14 is to prevent the gas in the oil tank from being discharged directly from the oil return passage 14, avoiding the relief valve structure formed by the piston 22 and the gas chamber B18.
EXAMPLE III
As shown in fig. 1 and 2, compared with the first embodiment, the oil level gauge for the hydraulic oil tank provided by the utility model has the advantages that the liquid level sensor is arranged in the gauge rod 7, the detection end of the liquid level sensor is positioned in the low line 10, the light alarm is arranged on the bump 2, and the light alarm is electrically connected with the liquid level sensor.
When the inside liquid level of oil tank was crossed lowly, level sensor can't detect liquid, and signal feedback reaches the controller in this oil tank place apparatus this moment, and controller control light alarm twinkles to the information that crosses lowly to operating personnel transmission liquid level, the apparatus that this design can effectually prevent that the apparatus from crossing the apparatus that leads to because of the hydraulic oil liquid level and damaging or down.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A dipstick for a hydraulic oil tank is characterized by comprising an oil tank cover (1), a fixed block (4), an oil mist separator (16) and a piston (22);
a convex block (2) is arranged on the oil tank cover (1), and an exhaust hole (3) is arranged on the side surface of the convex block (2); the fixed block (4) is arranged below the oil tank cover (1), the scale rod (7) is arranged below the fixed block (4), a groove A (8) is vertically formed in the scale rod (7), the scale rod (7) is provided with a high-position line (9) and a low-position line (10), the high-position line (9) and the low-position line (10) are both located on the side face of the groove A (8), the high-position line (9) is located below the low-position line (10), and the scale rod (7) is further provided with an air inlet hole (12);
an air cavity A (13) is arranged in the fixed block (4), an oil return channel (14) and an exhaust channel (15) are arranged in the fixed block (4), and the exhaust channel (15) is communicated with the exhaust hole (3); the oil mist separator (16) is detachably arranged in the air cavity A (13), and the oil mist separator (16) is positioned between the exhaust channel (15) and the oil return channel (14); an air cavity B (18) is further arranged in the fixed block (4), the air cavity B (18) is located on the inner side of the air cavity A (13), an air inlet channel (19) is arranged in the fixed block (4), one end of the air inlet channel (19) is communicated with the inside of the air cavity B (18), and the other end of the air inlet channel is communicated with the air inlet hole (12); the outer wall of the air cavity B (18) is provided with an air outlet (20) communicated with the inside of the air cavity B, and the air outlet (20) is communicated with the air cavity A (13);
the piston (22) is arranged inside the air cavity B (18) in a sliding mode, the spring B (21) is arranged inside the air cavity B (18), one end of the spring B (21) is connected with the top of the outer wall of the air cavity B (18), and the other end of the spring B is connected with the piston (22).
2. The dipstick for the hydraulic oil tank according to claim 1, characterized in that an annular sealing gasket (6) is arranged below the oil tank cover (1), the annular sealing gasket (6) is coated and arranged on the outer side of the fixing block (4), and a spring A (5) is further arranged on the side surface of the fixing block (4).
3. An oil gauge for a hydraulic oil tank according to claim 2, wherein the inside of the groove A (8) is provided with a plurality of grooves B (11) which are opened to communicate with the groove A (8).
4. The oil gauge for the hydraulic oil tank is characterized in that a one-way valve is arranged inside the exhaust hole (3), and a dust screen is further arranged at the exhaust port of the exhaust hole (3).
5. An oil gauge for hydraulic oil tanks, according to claim 1, characterized in that the inside of the oil return channel (14) is provided with a non-return valve (17).
6. The oil gauge for the hydraulic oil tank is characterized in that a liquid level sensor is arranged in the gauge rod (7), the detection end of the liquid level sensor is positioned in the low line (10), a light alarm is arranged on the bump (2), and the light alarm is electrically connected with the liquid level sensor.
7. An oil gauge for a hydraulic oil tank according to claim 1, characterized in that the side of the projection (2) is provided with anti-slip teeth.
8. Oil dipstick for hydraulic oil tanks according to claim 1, characterised in that the outer surface of the fixing block (4) is provided with screw thread teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736426.5U CN216009119U (en) | 2021-07-28 | 2021-07-28 | Oil level gauge for hydraulic oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736426.5U CN216009119U (en) | 2021-07-28 | 2021-07-28 | Oil level gauge for hydraulic oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009119U true CN216009119U (en) | 2022-03-11 |
Family
ID=80589546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121736426.5U Expired - Fee Related CN216009119U (en) | 2021-07-28 | 2021-07-28 | Oil level gauge for hydraulic oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009119U (en) |
-
2021
- 2021-07-28 CN CN202121736426.5U patent/CN216009119U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220311 |