CN220036957U - Three-in-one catcher for vacuum pump - Google Patents
Three-in-one catcher for vacuum pump Download PDFInfo
- Publication number
- CN220036957U CN220036957U CN202321649672.6U CN202321649672U CN220036957U CN 220036957 U CN220036957 U CN 220036957U CN 202321649672 U CN202321649672 U CN 202321649672U CN 220036957 U CN220036957 U CN 220036957U
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- Prior art keywords
- shell
- seat
- oil
- vacuum pump
- toppling
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- 230000000903 blocking effect Effects 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 38
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003595 mist Substances 0.000 abstract description 12
- 238000001914 filtration Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a three-in-one catcher for a vacuum pump, which comprises a shell arranged on an outlet of an oil tank of the vacuum pump and a filter element assembly arranged in the shell. The filter element assembly comprises an upper seat, a lower seat and a filter element arranged between the upper seat and the lower seat, wherein the lower seat is fixedly connected with the shell and is provided with an air inlet channel for communicating an inner cavity of the filter element with an outlet of the oil tank, an exhaust cavity is formed between the outer peripheral surface of the filter element and the inner peripheral surface of the shell, and the upper end of the shell is provided with an exhaust port communicated with the exhaust cavity; the lower seat is also provided with an oil return channel for communicating the bottom of the exhaust cavity with an outlet of the oil tank, and a plugging piece for plugging or opening the oil return channel is movably arranged at the outlet of the oil return channel; the filter element is internally and movably provided with an anti-toppling oil leakage seat for blocking or opening the air inlet channel and an elastic piece which always acts on the anti-toppling oil leakage seat, and the elastic piece enables the anti-toppling oil leakage seat to have the trend of blocking the air inlet channel. The structure has the functions of oil mist filtration, oil return and anti-toppling and oil leakage.
Description
Technical Field
The utility model relates to a catcher, in particular to a three-in-one catcher for a vacuum pump.
Background
When the oil seal rotary vane vacuum pump works, oil mist is generated at the same time, and if the oil mist is directly discharged into the atmosphere, the oil mist can pollute the environment and even cause discomfort to human bodies. At present, the conventional catcher only plays a role in filtering oil mist, and a few of the catcher also has a certain structure to play a role in returning oil, so that oil drops formed after the catcher filters the oil mist flow back to the oil tank of the vacuum pump again, and waste is avoided. The oil mist catcher as described in the 'rotary vane vacuum pump with built-in oil mist catcher' of Chinese patent No. CN201605451206. X comprises a positioning shell integrally extending on the inner wall surface of an oil tank, a tubular filter element is fixed in the positioning shell through a screw, an oil gas inlet communicated with the inner cavity of the tubular filter element is arranged on the positioning shell, an oil gas outlet is communicated with the outer corresponding positioning shell of the tubular filter element, and an oil return channel is arranged in the wall surface of the corresponding positioning shell below the oil mist catcher. Although the above-described traps have been able to meet the normal use requirements of vacuum pumps, there is a drawback: when the vacuum pump is accidentally dumped, the vacuum pump oil can flow out of the vacuum pump through the filter, causing loss and pollution of the vacuum pump oil.
Disclosure of Invention
The utility model aims to solve the technical problem and provide the three-in-one catcher for the vacuum pump, which has the functions of oil mist filtration and oil return and also has the function of preventing oil from flowing out of the vacuum pump when the vacuum pump accidentally topples over.
The technical scheme of the utility model is as follows:
the utility model provides a trinity trap for vacuum pump, includes the shell of locating on the vacuum pump oil tank export and sets up the filter core subassembly in the shell, its characterized in that: the filter element assembly comprises an upper seat, a lower seat and a filter element arranged between the upper seat and the lower seat, the lower seat is fixedly connected with the shell and is provided with an air inlet channel for communicating an inner cavity of the filter element with an outlet of the oil tank, an exhaust cavity is formed between the outer peripheral surface of the filter element and the inner peripheral surface of the shell, and an exhaust port communicated with the exhaust cavity is arranged at the upper end of the shell; the lower seat is also provided with an oil return channel for communicating the bottom of the exhaust cavity with an outlet of the oil tank, and a blocking piece for blocking or opening the oil return channel is movably arranged at the outlet of the oil return channel; the filter element is internally and movably provided with an anti-toppling oil leakage seat for blocking or opening the air inlet channel and an elastic piece which always acts on the anti-toppling oil leakage seat, and the elastic piece enables the anti-toppling oil leakage seat to have the trend of blocking the air inlet channel.
Further, in the three-in-one catcher for the vacuum pump, the anti-toppling oil leakage seat is provided with the guide rod, the upper seat is correspondingly provided with the guide hole, and the guide rod is movably arranged in the guide hole in a penetrating manner; the elastic piece is a spring sleeved on the guide rod, and two ends of the elastic piece are respectively abutted against the anti-toppling oil leakage seat and the upper seat.
In the three-in-one catcher for the vacuum pump, the shell comprises an upper shell and a lower shell which are detachably connected, and the exhaust port is arranged on the upper end face of the upper shell.
Furthermore, in the three-in-one catcher for the vacuum pump, the periphery of the anti-toppling oil leakage seat is provided with the first sealing groove, the first sealing groove is internally provided with the first sealing ring, and the anti-toppling oil leakage seat is in sealing fit with the lower seat through the first sealing ring.
Further, in the three-in-one catcher for the vacuum pump, the lower seat is in threaded connection with the shell, the shell is provided with the second sealing groove, the second sealing groove is internally provided with the second sealing ring, and the shell is in sealing fit with the lower seat through the second sealing ring.
In the three-in-one catcher for the vacuum pump, the shell is connected with the oil tank through threads, and the shell and the oil tank are in three-in-one sealing fit through the sealing ring.
Furthermore, in the three-in-one catcher for the vacuum pump, the blocking piece is a rubber ball, and a blocking plate for blocking the rubber ball from falling off from the outlet of the oil return channel is arranged at the outlet of the oil return channel.
The beneficial effects of the utility model are as follows:
1. the utility model has simple structure, integrates the three functions of oil mist filtration, oil return and anti-toppling oil leakage, when the vacuum pump does not work or has little exhaust capacity, namely, the anti-toppling oil leakage seat and the lower seat are kept sealed by means of spring force to cut off the air inlet channel when the air pump is in low air pressure, and when the vacuum pump is toppled accidentally, the oil return channel is blocked by the impact force of the rubber ball on the oil in the oil tank, so that the oil is kept in the oil tank, and the oil is prevented from flowing out of the vacuum pump through the catcher to cause oil loss and pollution.
2. The detachable connection structure is designed on each component such as the shell, the filter element component and the like, so that the detachable connection structure is convenient to install and maintain in the later period, and the sealing ring structure is arranged at the joint of each component, so that the tightness of the catcher is improved, and the oil leakage phenomenon is thoroughly avoided.
Drawings
Fig. 1 is a schematic view of the present utility model in use when the vacuum pump is in operation.
Fig. 2 is a schematic view of the present utility model in use when the vacuum pump is stopped.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings:
referring to fig. 1 and 2, the present embodiment proposes a three-in-one catcher for a vacuum pump, which includes a housing 1 provided at an outlet of a vacuum pump tank 16 and a filter element assembly provided in the housing 1. The filter element assembly comprises an upper seat 2, a lower seat 3 and a filter element 4 arranged between the upper seat 2 and the lower seat 3, the lower seat 3 is fixedly connected with the shell 1 and is provided with an air inlet channel 5 used for communicating an inner cavity of the filter element 4 with an outlet of an oil tank 16, an air exhaust cavity 6 is formed between the outer peripheral surface of the filter element 4 and the inner peripheral surface of the shell 1, and an air exhaust port 7 communicated with the air exhaust cavity 6 is arranged at the upper end of the shell 1. The shell 1 comprises an upper shell 1a and a lower shell 1b which are detachably connected, and the exhaust port 7 is arranged on the upper end face of the upper shell 1 a.
The lower seat 3 is also provided with an oil return channel 8 for communicating the bottom of the exhaust cavity 6 with the outlet of the oil tank 16, and a blocking piece 11 for blocking or opening the oil return channel is movably arranged at the outlet of the oil return channel 8. Specifically, the blocking piece 11 is a rubber ball, and a blocking plate 12 for blocking the rubber ball from falling off from the outlet of the oil return channel 8 is further arranged at the outlet of the oil return channel 8.
The filter element 4 is internally and movably provided with an anti-toppling oil leakage seat 9 for blocking or opening the air inlet channel 5 and an elastic piece 10 which always acts on the anti-toppling oil leakage seat 9, and the elastic piece 10 enables the anti-toppling oil leakage seat 9 to have a trend of blocking the air inlet channel 5. Specifically, the anti-toppling oil leakage seat 9 is provided with a guide rod 9a, the upper seat 2 is correspondingly provided with a guide hole 2a, and the guide rod 9a is movably arranged in the guide hole 2a in a penetrating manner; the elastic piece 10 is a spring sleeved on the guide rod 9a, and two ends of the spring are respectively abutted against the anti-toppling oil leakage seat 9 and the upper seat 2.
In order to improve the sealing performance and the oil leakage prevention performance of the overall structure, in this embodiment, a first sealing groove is arranged at the periphery of the anti-toppling oil leakage seat 9, a first sealing ring 13 is arranged in the first sealing groove, and the anti-toppling oil leakage seat 9 is in sealing fit with the lower seat 3 through the first sealing ring 13. The lower seat 3 is in threaded connection with the shell 1, a second sealing groove is formed in the shell 1, a second sealing ring 14 is arranged in the second sealing groove, and the shell 1 is in sealing fit with the lower seat 3 through the second sealing ring 14. The shell 1 is in threaded connection with the oil tank 16, and the shell and the oil tank are in sealing fit through a sealing ring III 15.
The operation of this embodiment is described below. As shown in fig. 1, when the vacuum pump works, pressure is generated in the oil tank 16, the rubber ball rises to block the oil return channel 8 under the action of the pressure, and when the pressure in the oil tank 16 continuously rises to reach a certain value, the spring continuously compresses, and the anti-toppling oil leakage seat 9 is jacked up to open the air inlet channel 5; the oil mist sequentially enters the air inlet channel 5 and the inner cavity of the filter element 4 from the outlet of the oil tank 16, is filtered by the filter element 4 and enters the exhaust cavity 6 to realize oil-gas separation, the gas is discharged through the exhaust port 7 at the upper end, and oil drops formed after filtration are deposited at the bottom of the exhaust cavity 6.
When the vacuum pump is stopped as shown in fig. 2, the rubber ball falls down to open the oil return passage 8 by the gravity of the oil and the rubber ball itself as the pressure in the oil tank 16 decreases, and the oil droplets flow back into the oil tank 16 along the oil return passage 8.
At this time, under the action of spring force, the anti-toppling oil leakage seat 9 can reset to block the air inlet channel 5. When the vacuum pump is accidentally dumped, the rubber ball will immediately block the oil return channel 8 under the impact of the oil in the oil tank 16, and the oil in the oil tank 16 will remain in the oil tank 16, preventing the oil from flowing out of the vacuum pump through the catcher.
The specific embodiments described herein are merely illustrative of the principles and functions of the present utility model, and are not meant to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present utility model shall be covered by the appended claims.
Claims (7)
1. The utility model provides a trinity trap for vacuum pump, includes the shell of locating on the vacuum pump oil tank export and sets up the filter core subassembly in the shell, its characterized in that: the filter element assembly comprises an upper seat, a lower seat and a filter element arranged between the upper seat and the lower seat, the lower seat is fixedly connected with the shell and is provided with an air inlet channel for communicating an inner cavity of the filter element with an outlet of the oil tank, an exhaust cavity is formed between the outer peripheral surface of the filter element and the inner peripheral surface of the shell, and an exhaust port communicated with the exhaust cavity is arranged at the upper end of the shell; the lower seat is also provided with an oil return channel for communicating the bottom of the exhaust cavity with an outlet of the oil tank, and a blocking piece for blocking or opening the oil return channel is movably arranged at the outlet of the oil return channel; the filter element is internally and movably provided with an anti-toppling oil leakage seat for blocking or opening the air inlet channel and an elastic piece which always acts on the anti-toppling oil leakage seat, and the elastic piece enables the anti-toppling oil leakage seat to have the trend of blocking the air inlet channel.
2. The three-in-one catcher for a vacuum pump according to claim 1, characterized in that: the anti-toppling oil leakage seat is provided with a guide rod, a guide hole is correspondingly formed in the upper seat, and the guide rod is movably arranged in the guide hole in a penetrating manner; the elastic piece is a spring sleeved on the guide rod, and two ends of the elastic piece are respectively abutted against the anti-toppling oil leakage seat and the upper seat.
3. The three-in-one catcher for a vacuum pump according to claim 1, characterized in that: the shell comprises an upper shell and a lower shell which are detachably connected, and the exhaust port is arranged on the upper end face of the upper shell.
4. The three-in-one catcher for a vacuum pump according to claim 1, characterized in that: the periphery of the anti-toppling oil leakage seat is provided with a first sealing groove, a first sealing ring is arranged in the first sealing groove, and the anti-toppling oil leakage seat is in sealing fit with the lower seat through the first sealing ring.
5. The three-in-one catcher for a vacuum pump according to claim 1, characterized in that: the lower seat is in threaded connection with the shell, a second sealing groove is formed in the shell, a second sealing ring is arranged in the second sealing groove, and the shell is in sealing fit with the lower seat through the second sealing ring.
6. The three-in-one catcher for a vacuum pump according to claim 1, characterized in that: the shell is in threaded connection with the oil tank, and the shell and the oil tank are in sealing fit through a sealing ring.
7. The three-in-one catcher for a vacuum pump according to claim 1, characterized in that: the blocking piece is a rubber ball, and a blocking plate for blocking the rubber ball from falling off from the outlet of the oil return channel is arranged at the outlet of the oil return channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321649672.6U CN220036957U (en) | 2023-06-27 | 2023-06-27 | Three-in-one catcher for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321649672.6U CN220036957U (en) | 2023-06-27 | 2023-06-27 | Three-in-one catcher for vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220036957U true CN220036957U (en) | 2023-11-17 |
Family
ID=88724765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321649672.6U Active CN220036957U (en) | 2023-06-27 | 2023-06-27 | Three-in-one catcher for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220036957U (en) |
-
2023
- 2023-06-27 CN CN202321649672.6U patent/CN220036957U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |