CN216812193U - Suck-back prevention vacuum pump - Google Patents
Suck-back prevention vacuum pump Download PDFInfo
- Publication number
- CN216812193U CN216812193U CN202123010432.5U CN202123010432U CN216812193U CN 216812193 U CN216812193 U CN 216812193U CN 202123010432 U CN202123010432 U CN 202123010432U CN 216812193 U CN216812193 U CN 216812193U
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- China
- Prior art keywords
- plate
- filter screen
- vacuum pump
- box
- containing box
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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
- 230000002265 prevention Effects 0.000 title claims description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model belongs to the technical field of vacuum pumps, and particularly relates to an anti-suck-back vacuum pump which comprises a bottom plate, wherein a pump body is installed at the top of the bottom plate, an air outlet pipe is installed at one end of the pump body, an air exhaust pipe is installed at one end of the top of the bottom plate, a closed box is installed inside the air exhaust pipe, and a filtering mechanism is installed inside the closed box; install the filter screen in the closed box of exhaust tube department, when gas flow to filter screen, can filter gas through the filter screen, and then avoid impurity to enter into the inside of the pump body, when the filter screen uses for a long time and need change, at the inside backing plate of filter mechanism, first containing box, the roof, hold-down mechanism, the filter screen, the second containing box, the new filter screen of first spool and second spool removes to between roof and the backing plate, then make the roof extrude the backing plate through hold-down mechanism again, through the change that can accomplish the filter screen like this, avoid the filter screen to cause the shutoff to the exhaust tube, protection vacuum pump normal use.
Description
Technical Field
The utility model belongs to the technical field of vacuum pumps, and particularly relates to an anti-suck-back vacuum pump.
Background
The vacuum pump is a device or equipment for obtaining vacuum by pumping a pumped container by using a vacuum pump and a physical, chemical or physical-chemical method, generally speaking, the vacuum pump is a device for improving, generating and maintaining vacuum in a certain closed space by using various methods, and is widely applied to the industries of metallurgy, chemical industry, food, electronic coating and the like.
The existing anti-reverse suction type vacuum pump cannot filter gas in an environment-friendly manner when the gas is pumped, particle dust in the gas is easily sucked into the anti-reverse suction type vacuum pump, and the dust is accumulated to cause certain damage to the inside of the anti-reverse suction type vacuum pump, so that the working efficiency and the service life of the anti-reverse suction type vacuum pump are influenced.
SUMMERY OF THE UTILITY MODEL
To solve the problems raised in the background art described above. The utility model provides a suck-back prevention vacuum pump which has the characteristics of filtering function and avoiding the vacuum pump from being damaged.
In order to achieve the purpose, the utility model provides the following technical scheme: a suck-back prevention vacuum pump comprises a bottom plate, wherein a pump body is installed at the top of the bottom plate, an air outlet pipe is installed at one end of the pump body, an exhaust pipe is installed at one end of the top of the bottom plate, a closed box is installed inside the exhaust pipe, a filtering mechanism is installed inside the closed box, the filtering mechanism comprises a base plate, a first containing box, a top plate, a pressing mechanism, a filtering net, a second containing box, a first scroll and a second scroll, the first containing box and the second containing box are installed at two ends of the closed box respectively, the first scroll is rotatably connected inside the first containing box, the second scroll is rotatably connected inside the second containing box, the filtering net is installed on the outer side wall of the first scroll, the other end of the filtering net penetrates through the inside of the closed box and then extends to the outer side wall of the second scroll, the base plate and the top plate are installed inside the closed box, and the filter screen is positioned between the backing plate and the top plate, and the top of the top plate is provided with a pressing mechanism.
As a preferred technical scheme of the anti-suck-back vacuum pump, the pressing mechanism comprises vertical plates, bearing discs, screw rods, positioning bolts and circular plates, the vertical plates are mounted at two ends of the top plate, the bearing discs are mounted at the tops of the vertical plates, the screw rods are rotatably connected to the tops of the bearing discs, the tops of the screw rods penetrate through the top of the closed box, the circular plates are mounted at the tops of the screw rods, and the positioning bolts are mounted on the outer side walls of the screw rods.
As the preferable technical scheme of the anti-suck-back vacuum pump, the bearing disc is rotatably connected with the vertical plate.
As a preferable technical solution of the vacuum pump for preventing back suction of the present invention, an operation panel is installed on a front surface of the second scroll.
As a preferred technical scheme of the anti-suck-back vacuum pump, an anti-suck-back joint is mounted at the top of the air outlet pipe.
As the preferable technical scheme of the anti-suck-back vacuum pump, the base plate and the top plate are of a square-shaped structure.
According to the preferable technical scheme of the anti-suck-back vacuum pump, a sealing structure is arranged among the closed box, the first containing box and the second containing box.
Compared with the prior art, the utility model has the beneficial effects that: install the filter screen in the seal box of exhaust tube department, when gas flows to the filter screen, can filter gas through the filter screen, and then avoid impurity to enter into the inside of the pump body, when the filter screen uses for a long time and need change, at the inside backing plate of filter mechanism, first containing box, the roof, hold-down mechanism, the filter screen, the second containing box, the new filter screen of first spool and second spool removes to between roof and the backing plate, then make the roof extrude the backing plate through hold-down mechanism again, through the change that can accomplish the filter screen like this, avoid the filter screen to cause the shutoff to the exhaust tube, protection vacuum pump normal use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the enclosure of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic structural view of the enclosed box of FIG. 2 with the squeeze plate removed in accordance with the present invention;
FIG. 4 is an enlarged schematic view of the compression plate of FIG. 2 according to the present invention;
in the figure: 1. a base plate; 2. a pump body; 3. an air outlet pipe; 4. a suck-back prevention joint; 5. an air exhaust pipe; 6. closing the box; 7. a filtering mechanism; 8. a base plate; 9. a first storage box; 10. a top plate; 11. a hold-down mechanism; 12. a filter screen; 13. a second storage box; 14. a first reel; 15. a second reel; 16. an operation panel; 17. a vertical plate; 18. a bearing disk; 19. a screw; 20. positioning bolts; 21. a circular plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a vacuum pump for preventing back suction comprises a bottom plate 1, a pump body 2 is installed on the top of the bottom plate 1, an air outlet pipe 3 is installed at one end of the pump body 2, an air exhaust pipe 5 is installed at one end of the top of the bottom plate 1, a closed box 6 is installed inside the air exhaust pipe 5, a filtering mechanism 7 is installed inside the closed box 6, the filtering mechanism 7 comprises a backing plate 8, a first containing box 9, a top plate 10, a pressing mechanism 11, a filtering net 12, a second containing box 13, a first scroll 14 and a second scroll 15, the first containing box 9 and the second containing box 13 are respectively installed at two ends of the closed box 6, the first scroll 14 is rotatably connected inside the first containing box 9, the second scroll 15 is rotatably connected inside the second containing box 13, the filtering net 12 is installed on the outer side wall of the first scroll 14, the other end of the filtering net 12 extends to the outer side wall of the second scroll 15 after penetrating through the inside of the closed box 6, a backing plate 8 and the top plate 10 are installed inside the closed box 6, and the filter screen 12 is positioned between the backing plate 8 and the top plate 10, and the top of the top plate 10 is provided with a pressing mechanism 11.
In this embodiment, install filter screen 12 in the seal box 6 of exhaust tube 5 department, when gas flows to filter screen 12, can filter gas through filter screen 12, and then avoid impurity to enter into the inside of the pump body 2, when filter screen 12 needs to be changed for a long time using, can make roof 10 and backing plate 8 separate through hold-down mechanism 11, then rotate operation panel 16 and can make the second accomodate the second spool 15 in the frame and twine old filter screen 12, and can stimulate new filter screen 12 of first spool 14 department and remove to between roof 10 and the backing plate 8 at the winding in-process of old filter screen 12, then make roof 10 extrude backing plate 8 through hold-down mechanism 11 again, through the change that can accomplish filter screen 12 like this, avoid filter screen 12 to cause the shutoff to exhaust tube 5.
Specifically, the pressing mechanism 11 comprises a vertical plate 17, a bearing disc 18, a screw rod 19, a positioning bolt 20 and a circular plate 21, the vertical plate 17 is installed at two ends of the top plate 10, the bearing disc 18 is installed at the top of the vertical plate 17, the screw rod 19 is rotatably connected to the top of the bearing disc 18, the top of the screw rod 19 penetrates through the top of the closed box 6, the circular plate 21 is installed at the top of the screw rod 19, and the positioning bolt 20 is installed on the outer side wall of the screw rod 19.
In this embodiment, when the top plate 10 needs to be tightly contacted, the circular plate 21 may be rotated, and then the screw 19 drives the top plate 10 to move downward in cooperation with the positioning bolt 20, and then the top plate 10 may press the filter screen 12.
Specifically, the bearing disc 18 is rotatably connected with the vertical plate 17.
In this embodiment, the top plate 10 can be tilted by rotatably coupling the bearing plate 18 to the upright plate 17, and the worker can tilt the top plate 10.
Specifically, an operation panel 16 is mounted on the front surface of the second reel 15.
In this embodiment, an operation panel 16 is mounted on the front surface of the second reel 15, and the second reel 15 is rotated by rotating the operation panel 16, and then the second reel 15 is wound around the old filter cloth 12.
Specifically, the top of the air outlet pipe 3 is provided with an anti-suck-back joint 4.
In this embodiment, the anti-suck-back joint 4 is installed at the top of the outlet pipe 3, and the phenomenon of gas backflow can be avoided through the anti-suck-back joint 4.
Specifically, the backing plate 8 and the top plate 10 are of a clip-type configuration.
In the present embodiment, the shim plate 8 and the top plate 10 are formed in a zigzag shape, and thus, gas can flow from the zigzag grooves of the shim plate 8 and the top plate 10.
Specifically, the seal structure is provided between the seal box 6, the first container box 9, and the second container box 13.
In this embodiment, the sealing structure is provided between the sealing box 6, the first storage box 9 and the second storage box 13, so that gas leakage can be avoided, and normal use of the vacuum pump is ensured.
The working principle and the using process of the utility model are as follows: after the filter screen 12 is installed, when the gas flows to the filter screen 12, the gas can be filtered through the filter screen 12, so that impurities are prevented from entering the interior of the pump body 2, when the filter screen 12 needs to be replaced after being used for a long time, the top plate 10 can be separated from the base plate 8 through the pressing mechanism 11, then the operating disc 16 is rotated, the second reel 15 in the second storage frame can be wound on the old filter screen 12, in addition, the new filter screen 12 at the first reel 14 can be pulled to move between the top plate 10 and the base plate 8 in the winding process of the old filter screen 12, and then the top plate 10 is extruded on the base plate 8 through the pressing mechanism 11, so that the replacement of the filter screen 12 can be completed, and the filter screen 12 is prevented from plugging the exhaust pipe 5.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a prevent suck-back vacuum pump, includes bottom plate (1), the pump body (2), its characterized in that are installed at the top of bottom plate (1): the air outlet pipe (3) is installed at one end of the pump body (2), the exhaust pipe (5) is installed at one end of the top of the bottom plate (1), the sealing box (6) is installed inside the exhaust pipe (5), the filtering mechanism (7) is installed inside the sealing box (6), the filtering mechanism (7) comprises a base plate (8), a first containing box (9), a top plate (10), a pressing mechanism (11), a filtering net (12), a second containing box (13), a first reel (14) and a second reel (15), the first containing box (9) and the second containing box (13) are installed at two ends of the sealing box (6) respectively, the first reel (14) is rotatably connected inside the first containing box (9), the second reel (15) is rotatably connected inside the second containing box (13), the filtering net (12) is installed on the outer side wall of the first reel (14), the filter screen (12) other end runs through extend to behind sealing box (6) is inside the lateral wall of second spool (15), the internally mounted of sealing box (6) has backing plate (8) and roof (10), just filter screen (12) are located backing plate (8) with between roof (10), hold-down mechanism (11) are installed at the top of roof (10).
2. A suck back prevention vacuum pump as claimed in claim 1, wherein: the pressing mechanism (11) comprises a vertical plate (17), a bearing disc (18), a screw rod (19), a positioning bolt (20) and a circular plate (21), the vertical plate (17) is installed at two ends of the top plate (10), the bearing disc (18) is installed at the top of the vertical plate (17), the screw rod (19) is rotatably connected to the top of the bearing disc (18), the top of the screw rod (19) penetrates through the top of the closed box (6), the circular plate (21) is installed at the top of the screw rod (19), and the positioning bolt (20) is installed on the outer side wall of the screw rod (19).
3. A suck back prevention vacuum pump as claimed in claim 2, wherein: the bearing disc (18) is rotatably connected with the vertical plate (17).
4. A suck back prevention vacuum pump as claimed in claim 1, wherein: an operation panel (16) is mounted on the front surface of the second reel (15).
5. A suck back prevention vacuum pump as claimed in claim 1, wherein: and the top of the air outlet pipe (3) is provided with a suck-back prevention joint (4).
6. A suck back prevention vacuum pump as claimed in claim 1, wherein: the base plate (8) and the top plate (10) are of a clip-shaped structure.
7. A suck back prevention vacuum pump as claimed in claim 1, wherein: and sealing structures are arranged among the closed box (6), the first containing box (9) and the second containing box (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123010432.5U CN216812193U (en) | 2021-12-02 | 2021-12-02 | Suck-back prevention vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123010432.5U CN216812193U (en) | 2021-12-02 | 2021-12-02 | Suck-back prevention vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216812193U true CN216812193U (en) | 2022-06-24 |
Family
ID=82051940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123010432.5U Expired - Fee Related CN216812193U (en) | 2021-12-02 | 2021-12-02 | Suck-back prevention vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216812193U (en) |
-
2021
- 2021-12-02 CN CN202123010432.5U patent/CN216812193U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220624 |