CN116378997A - Self-sealing air leakage-proof vacuum pump - Google Patents
Self-sealing air leakage-proof vacuum pump Download PDFInfo
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- CN116378997A CN116378997A CN202310567713.5A CN202310567713A CN116378997A CN 116378997 A CN116378997 A CN 116378997A CN 202310567713 A CN202310567713 A CN 202310567713A CN 116378997 A CN116378997 A CN 116378997A
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- 238000007789 sealing Methods 0.000 title claims abstract description 86
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000000670 limiting effect Effects 0.000 claims abstract description 9
- 241000283216 Phocidae Species 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 31
- 238000010276 construction Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/14—Shaft sealings operative only when pump is inoperative
- F04D29/143—Shaft sealings operative only when pump is inoperative especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-sealing air leakage-proof vacuum pump which comprises a base, a driving motor, an output shaft, a fixed cover, a movable cover, a joint pipe and a vacuum impeller, wherein the driving motor is fixedly arranged above the base, the left end of the driving motor is provided with the output shaft, the left end of the output shaft penetrates through the fixed cover, the fixed cover is fixed above the base, the left end of the fixed cover is connected with the movable cover, and the vacuum impeller is arranged inside the fixed cover. This vacuum pump of self sealss leak protection gas is provided with sealed gasbag, sealing block and opening, and the sealing block does not contact with the opening when vacuum pump normal operating, and the sealing gasbag can be automatic to expand after the vacuum pump stop work, shutoff to the connection clearance of output shaft and fixed cover, can also play the limiting displacement to the output shaft simultaneously, and the sealing block removes the shutoff to the opening simultaneously, seals in the joint pipe to prevent gaseous backward flow, guarantee its vacuum extraction effect.
Description
Technical Field
The invention relates to the technical field of vacuum pumps, in particular to a self-sealing air leakage-proof vacuum pump.
Background
The vacuum pump is a common gas extraction device, can make its formation vacuum or negative pressure with the interior gaseous extraction of container, as the vacuum pump that possesses environment-friendly filter equipment of application number CN202020408264.1, 12 months 11 days in 2020, through being provided with screw, screw thread mouth and screw groove, can make the screw pass the screw thread mouth and extend to the inside in screw thread groove, the effect of installation connection between filter equipment and the vacuum pump has been played, through the inside filter screen that is provided with of casing, can filter the dust and the granule in the gas when the vacuum pump is taken out, the granule dust in the gas is avoided being inhaled inside by the vacuum pump, prevent that the accumulation of dust from causing the damage to the vacuum pump inside, the life of vacuum pump has been prolonged, but above-mentioned vacuum pump and current vacuum pump still have some disadvantages when using:
the existing vacuum pump does not have a sealing and air leakage structure after vacuum extraction, namely plugging air is not timely returned to the container for pipeline after the subsequent vacuum pump stops working, so that the vacuum extraction is invalid, and the sealing structure of the dry vacuum pump disclosed by the application number CN202021068749.7, 2021, 2 months and 12 days is provided with a sealing mechanism, and the sealing mechanism is suitable for sealing a pipeline joint and still has the technical problem.
Disclosure of Invention
The invention aims to provide a self-sealing air leakage-proof vacuum pump, which aims to solve the problem that the existing vacuum pump in the market at present provided by the background technology does not have a sealing air leakage-proof structure after vacuum extraction, namely, plugging air can return to a container again after the subsequent vacuum pump stops working, so that the vacuum extraction is invalid.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a self-sealing leak protection gas vacuum pump, includes base, driving motor, output shaft, fixed cover, activity cover, joint pipe and vacuum impeller, driving motor fixed mounting is in the top of base, and driving motor's left end is provided with the output shaft, and the left end of output shaft runs through there is the fixed cover, the fixed cover is fixed in the top of base, and the left end of fixed cover is connected with the activity cover to the inside of fixed cover is provided with vacuum impeller, vacuum impeller and output shaft are connected, control vacuum impeller's rotation through the output shaft, the top of fixed cover is fixed with the joint pipe for with outside pipeline connection, the junction outside of output shaft and fixed cover is provided with sealed gasbag, and sealed gasbag is the outside of annular cover and establishes in the output shaft, and sealed gasbag's outside is fixed in the inside of fixed cover, sealed gasbag's outside is connected with first connecting pipe, the upper end of the first connecting pipe is connected with a supplementary air bag, the outer side of the supplementary air bag is provided with an outer cover body, the outer cover body is fixed on the right side surface of the fixed cover, the inner part of the outer cover body is provided with an extrusion plate, a left-right sliding structure is formed between the extrusion plate and the outer cover body, the right side of the extrusion plate is provided with an automatic extrusion mechanism, the supplementary air bag can be extruded after the output shaft stops rotating to expand the sealing air bag, a connecting gap between the output shaft and the fixed cover is blocked, a sealing plate is fixed in the connector pipe, a through hole is formed in the middle of the sealing plate, a sealing block is arranged below the through hole, a connecting block is fixed below the sealing block, a supporting block is arranged at the lower end of the connecting block and is in a strip shape and fixed in the connector pipe, the connecting block is in an up-down sliding structure formed between the inner part of the supporting block and the supporting block, and a vertical position control mechanism is arranged below the connecting block and is used for controlling the vertical position of the connecting block when the state of the output shaft is changed.
Further optimize this technical scheme, the surface mounting of output shaft has the lug, and the output shaft passes through the lug and drives vacuum impeller and rotate, and constitutes left and right sliding construction between output shaft and the vacuum impeller to the left end threaded connection of output shaft has the locking piece, locks the surface at the output shaft with vacuum impeller.
According to the technical scheme, the elastic shrinkage force of the sealing air bag is larger than that of the supplementary air bag, so that the gas in the sealing air bag can be automatically transferred into the supplementary air bag.
Further optimizing the technical scheme, the automatic extrusion mechanism comprises a first spring, a fixed plate and a right pulling mechanism;
the first spring is arranged on the right side of the extrusion plate and provides left thrust for the extrusion plate;
the fixed plate is arranged at the right end of the first spring and used for supporting the first spring, the fixed plate is fixed in the outer cover body, and the right end of the extrusion plate penetrates through the fixed plate and forms a left-right sliding structure;
the right pulling mechanism is arranged on the right side of the fixed plate and used for controlling the right movement of the extrusion plate.
Further optimizing the technical scheme, the right pulling mechanism comprises a magnetic plate and an electromagnet;
the magnetic plate is fixed at the right end of the extrusion plate;
the electromagnet is arranged on the right side of the magnetic plate, is fixed in the outer cover body, provides attractive force for the magnetic plate when being electrified, and realizes control of the extrusion plate through subsequent power-on and power-off control of the electromagnet.
Further optimize this technical scheme, the sealing block is spherical structural design, and the diameter of sealing block is greater than the diameter of opening to the outside of sealing block is the rubber material, guarantees the sealing effect of sealing block to the opening.
Further optimizing the technical scheme, the vertical position control mechanism comprises a second spring, a first control air bag and a second connecting pipe;
the second spring is arranged above the connecting block and provides lower thrust for the connecting block;
the first control air bag is arranged below the connecting block;
the second connecting pipe is arranged at the outer side of the first control air bag and is used for communicating the first control air bag and the supplementary air bag with each other, so that gas in the subsequent supplementary air bag can synchronously transfer to the first control air bag.
Further optimize this technical scheme, the outside of movable cover is provided with the mounting bolt, the spread groove corresponding with the mounting bolt has been seted up in the left side of fixed cover, fixes the movable cover on fixed cover through the threaded connection between mounting bolt and the spread groove, the right side of mounting bolt is provided with stop gear, carries out spacingly to the rotation of mounting bolt.
Further optimizing the technical scheme, the limiting mechanism comprises a positioning groove, a locking rod, a connecting plate, a third spring, a second control air bag and a third connecting pipe;
the positioning groove is formed in the right side surface of the mounting bolt and is staggered with the circle center of the mounting bolt;
the locking rod is arranged in the connecting groove and forms a clamping structure with the positioning groove;
the connecting plate is fixed at the right end of the locking rod, and a left-right sliding structure is formed between the connecting plate and the fixed cover;
the third spring is arranged on the right side of the connecting plate and provides left thrust for the connecting plate;
the second control air bag is arranged at the left side of the connecting plate;
and the third connecting pipe is arranged at the outer side of the second control air bag and is used for communicating the second control air bag with the supplementary air bag.
Compared with the prior art, the invention has the beneficial effects that:
(1) The self-sealing air-leakage-preventing vacuum pump is provided with the sealing air bag, the sealing block and the through hole, when the vacuum pump works normally, the sealing block is not contacted with the through hole, the sealing air bag can automatically expand after the vacuum pump stops working, the connecting gap between the output shaft and the fixed cover is blocked, the limiting effect of the output shaft can be achieved, meanwhile, the sealing block moves to block the through hole, the inside of the joint pipe is sealed, thus gas backflow is prevented, and the vacuum extraction effect of the vacuum pump is ensured;
(2) This vacuum pump of self sealss leak protection gas is provided with constant head tank and locking lever, can carry out spacingly to the rotation of mounting bolt through the connection of locking lever and constant head tank to make and keep stable the connection between movable cover and the fixed cover, avoid follow-up receiving vibrations influence mounting bolt not hard up to lead to appearing the clearance between fixed cover and the movable cover, thereby influence follow-up extraction effect.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view of a retaining cap according to the present invention;
FIG. 3 is a schematic view showing the internal structure of the retaining cap of the present invention;
FIG. 4 is a schematic view of the main sectional structure of the retaining cap of the present invention;
FIG. 5 is a schematic top view of a joint tube according to the present invention;
FIG. 6 is a schematic view of the main cross-section of the joint pipe of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 4 a according to the present invention;
FIG. 8 is a schematic side view of a mounting bolt of the present invention.
In the figure: 1. a base; 2. a driving motor; 3. an output shaft; 301. a bump; 4. a fixed cover; 5. a movable cover; 6. a joint pipe; 7. a vacuum impeller; 8. a locking block; 9. sealing the air bag; 10. a first connection pipe; 11. supplementary air bag; 12. a housing body; 13. an extrusion plate; 14. a first spring; 15. a fixing plate; 16. a magnetic plate; 17. an electromagnet; 18. a sealing plate; 19. a through port; 20. a sealing block; 21. a connecting block; 22. a second spring; 23. a support block; 24. a first control air bag; 25. a second connection pipe; 26. installing a bolt; 27. a connecting groove; 28. a positioning groove; 29. a locking lever; 30. a connecting plate; 31. a third spring; 32. a second control air bag; 33. and a third connection pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a self-sealing anti-leakage vacuum pump, which comprises a base 1, driving motor 2, the output shaft 3, fixed cover 4, movable cover 5, joint pipe 6 and vacuum impeller 7, driving motor 2 fixed mounting is in the top of base 1, and driving motor 2's left end is provided with output shaft 3, and the left end of output shaft 3 runs through fixed cover 4, fixed cover 4 is fixed in the top of base 1, and the left end of fixed cover 4 is connected with movable cover 5, and the inside of fixed cover 4 is provided with vacuum impeller 7, vacuum impeller 7 is connected with output shaft 3, control the rotation of vacuum impeller 7 through output shaft 3, the top of fixed cover 4 is fixed with joint pipe 6 for with outside pipeline connection, the junction outside of output shaft 3 and fixed cover 4 is provided with sealed gasbag 9, and sealed gasbag 9 is the annular cover and establish the outside of output shaft 3, and sealed gasbag 9's outside is fixed in the inside of fixed cover 4, the outer side of the sealing airbag 9 is connected with a first connecting pipe 10, the upper end of the first connecting pipe 10 is connected with a supplementary airbag 11, the outer side of the supplementary airbag 11 is provided with an outer cover body 12, the outer cover body 12 is fixed on the right side surface of the fixed cover 4, an extrusion plate 13 is arranged in the outer cover body 12, a left-right sliding structure is formed between the extrusion plate 13 and the outer cover body 12, the right side of the extrusion plate 13 is provided with an automatic extrusion mechanism, the supplementary airbag 11 can be extruded to expand the sealing airbag 9 after the rotation of the output shaft 3 is stopped, the connecting gap between the output shaft 3 and the fixed cover 4 is blocked, a sealing plate 18 is fixed in the inner part of the joint pipe 6, a through hole 19 is formed in the middle of the sealing plate 18, a sealing block 20 is arranged below the through hole 19, a connecting block 21 is fixed below the sealing block 20, and the lower end of the connecting block 21 is provided with a supporting block 23, the supporting block 23 is fixed in the joint pipe 6 in a strip shape, the connecting block 21 is of an up-down sliding structure formed between the inside of the supporting block 23 and the supporting block 23, a vertical position control mechanism is arranged below the connecting block 21, when the state of the output shaft 3 is changed, the vertical position of the connecting block 21 is controlled, a bump 301 is fixed on the surface of the output shaft 3, the output shaft 3 drives the vacuum impeller 7 to rotate through the bump 301, the output shaft 3 forms a left-right sliding structure through the bump 301 and the vacuum impeller 7, and the left end of the output shaft 3 is connected with a locking block 8 in a threaded manner, so that the vacuum impeller 7 is locked on the surface of the output shaft 3;
when the vacuum impeller is used, an external pipe can be installed on the joint pipe 6, then the driving motor 2 is matched with the output shaft 3 to drive the vacuum impeller 7 to rotate, gas is pumped, and the locking block 8 can be unscrewed after the movable cover 5 is detached from the fixed cover 4, so that the vacuum impeller 7 is detached from the output shaft 3.
The elastic contraction force of the sealing airbag 9 is larger than that of the supplementary airbag 11, so that the gas in the sealing airbag 9 can be automatically transferred into the supplementary airbag 11, the automatic extrusion mechanism comprises a first spring 14, a fixed plate 15 and a right pulling mechanism, the first spring 14 is arranged on the right side of the extrusion plate 13 to provide left thrust for the extrusion plate 13, the fixed plate 15 is arranged on the right end of the first spring 14 to provide support for the first spring 14, the fixed plate 15 is fixed in the outer cover body 12, the right end of the extrusion plate 13 penetrates through the fixed plate 15 and the fixed plate 15 to form a left-right sliding structure, the right pulling mechanism is arranged on the right side of the fixed plate 15 to control the right movement of the extrusion plate 13, the right pulling mechanism comprises a magnetic plate 16 and an electromagnet 17, the magnetic plate 16 is fixed on the right end of the extrusion plate 13, the electromagnet 17 is arranged on the right side of the magnetic plate 16, the electromagnet 17 is fixed in the outer cover body 12, attractive force is provided for the magnetic plate 16 when the electromagnet 17 is electrified, control over the extrusion plate 13 is achieved through subsequent power-on and power-off control of the electromagnet 17, the sealing block 20 is of a spherical structure design, the diameter of the sealing block 20 is larger than that of the through hole 19, the outer side of the sealing block 20 is made of rubber materials, the sealing effect of the sealing block 20 on the through hole 19 is guaranteed, the vertical position control mechanism comprises a second spring 22, a first control air bag 24 and a second connecting pipe 25, the second spring 22 is arranged above the connecting pipe 21 and provides lower thrust for the connecting pipe 21, the first control air bag 24 is arranged below the connecting pipe 21, the second connecting pipe 25 is arranged outside the first control air bag 24, the first control air bag 24 and the supplementary air bag 11 are communicated with each other, and gas in the subsequent supplementary air bag 11 can synchronously transfer to the first control air bag 24;
the electromagnet 17 and the driving motor 2 are connected in series circuit, a delay switch can be arranged between the electromagnet 17 and the driving motor 2, the driving motor 2 is restarted after the electromagnet 17 is started by short delay, when the driving motor 2 is closed, the electromagnet 17 is powered off, the extrusion plate 13 extrudes the supplementary air bag 11 under the action of the first spring 14, gas in the supplementary air bag 11 enters the sealing air bag 9 and the first control air bag 24 through the first connecting pipe 10 and the second connecting pipe 25 respectively, the sealing air bag 9 expands in volume, the connecting gap between the output shaft 3 and the fixed cover 4 is plugged, the limiting effect on the output shaft 3 can be achieved, the first control air bag 24 expands in volume, the connecting block 21 is pushed to move upwards, the second spring 22 is compressed, the connecting block 21 drives the sealing block 20 to move, the sealing block 20 is connected with the through hole 19, the sealing effect is formed, the gas in the joint pipe 6 is prevented from flowing back when the driving motor 2 is opened subsequently, the electromagnet 17 is electrified to generate magnetic force to attract the magnetic plate 16, the control extrusion plate 13 moves, the sealing block 13 moves to the sealing block 11 is removed from the first control air bag, the sealing block 11 is opened smoothly, the sealing air bag is opened through the sealing block 20 is opened, and the sealing air bag is closed when the sealing block is opened normally, and the sealing block is opened, and the sealing air bag is opened.
The movable cover 5 is provided with a mounting bolt 26 on the outer side, a connecting groove 27 corresponding to the mounting bolt 26 is formed in the left side of the fixed cover 4, the movable cover 5 is fixed on the fixed cover 4 through threaded connection between the mounting bolt 26 and the connecting groove 27, a limiting mechanism is arranged on the right side of the mounting bolt 26 and is used for limiting rotation of the mounting bolt 26, the limiting mechanism comprises a positioning groove 28, a locking rod 29, a connecting plate 30, a third spring 31, a second control air bag 32 and a third connecting pipe 33, the positioning groove 28 is formed in the right side surface of the mounting bolt 26 and is staggered with the center of the mounting bolt 26, the locking rod 29 is arranged in the connecting groove 27, a clamping structure is formed between the positioning groove 28, the connecting plate 30 is fixed at the right end of the locking rod 29, a left-right sliding structure is formed between the connecting plate 30 and the fixed cover 4, the third spring 31 is arranged on the right side of the connecting plate 30 and is used for providing left thrust for the connecting plate 30, the second control air bag 32 is arranged on the left side of the connecting plate 30, the third connecting pipe 33 is arranged on the outer side of the second control air bag 32 and is communicated with the supplementary air bag 11;
when the electromagnet 17 is electrified, the connecting plate 30 extrudes the gas in the second control air bag 32 into the supplementary air bag 11 through the third connecting pipe 33 under the action of the third spring 31, so that the locking rod 29 stretches out and is connected with the positioning groove 28, the rotation of the mounting bolt 26 is limited, the looseness of the mounting bolt 26 caused by vibration is avoided when the device works, after the device stops working, the electromagnet 17 is powered off, the gas in the supplementary air bag 11 is pressed and is transferred to the second control air bag 32 through the third connecting pipe 33, the volume expansion of the second control air bag 32 pushes the connecting plate 30 to move rightwards, the locking rod 29 is pushed out of the positioning groove 28, the mounting bolt 26 can be screwed off from the connecting groove 27, and the movable cover 5 can be detached.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The utility model provides a vacuum pump of self sealss gas leakage prevention, includes base (1), driving motor (2), output shaft (3), fixed cover (4), activity cover (5), joint pipe (6) and vacuum impeller (7), driving motor (2) fixed mounting is in the top of base (1), and driving motor (2) left end is provided with output shaft (3) to the left end of output shaft (3) runs through there is fixed cover (4), fixed cover (4) are fixed in the top of base (1), and the left end of fixed cover (4) is connected with activity cover (5) to the inside of fixed cover (4) is provided with vacuum impeller (7), vacuum impeller (7) are connected with output shaft (3), control the rotation of vacuum impeller (7) through output shaft (3), the top of fixed cover (4) is fixed with joint pipe (6) for connect with outside pipeline.
The method is characterized in that: the sealing device is characterized in that a sealing air bag (9) is arranged at the outer side of a joint of the output shaft (3) and the fixed cover (4), the sealing air bag (9) is sleeved on the outer side of the output shaft (3) in an annular mode, the outer side of the sealing air bag (9) is fixed in the fixed cover (4), a first connecting pipe (10) is connected to the outer side of the sealing air bag (9), a supplementary air bag (11) is connected to the upper end of the first connecting pipe (10), an outer cover body (12) is arranged at the outer side of the supplementary air bag (11), the outer cover body (12) is fixed on the right side surface of the fixed cover (4), a pressing plate (13) is arranged in the outer cover body (12), a left-right sliding structure is formed between the pressing plate (13) and the outer cover body (12), an automatic pressing mechanism is arranged on the right side of the pressing plate (13), after the output shaft (3) stops rotating, the supplementary air bag (11) can be pressed to expand the sealing air bag (9), and a connecting gap between the output shaft (3) and the fixed cover (4) is blocked;
the inside of joint pipe (6) is fixed with shrouding (18), and the opening (19) has been seted up at the middle part of shrouding (18) to the below of opening (19) is provided with sealing block (20), the below of sealing block (20) is fixed with connecting block (21), and the lower extreme of connecting block (21) is provided with supporting shoe (23), and supporting shoe (23) are the inside that the strip was fixed at joint pipe (6), connecting block (21) are for constituting sliding construction from top to bottom between the inside of supporting shoe (23) and supporting shoe (23) to the below of connecting block (21) is provided with vertical position control mechanism, controls the vertical position of connecting block (21) when output shaft (3) state changes.
2. A self-sealing, gas-tight vacuum pump according to claim 1, wherein: the surface of output shaft (3) is fixed with lug (301), and output shaft (3) drive vacuum impeller (7) through lug (301) and rotate, and constitute left and right sliding construction between output shaft (3) through lug (301) and vacuum impeller (7), and the left end threaded connection of output shaft (3) has locking piece (8), locks vacuum impeller (7) at the surface of output shaft (3).
3. A self-sealing, gas-tight vacuum pump according to claim 1, wherein: the elastic shrinkage force of the sealing air bag (9) is larger than that of the supplementing air bag (11), so that the gas in the sealing air bag (9) can be automatically transferred into the supplementing air bag (11).
4. A self-sealing, gas-tight vacuum pump according to claim 1, wherein: the automatic extrusion mechanism comprises a first spring (14), a fixed plate (15) and a right pulling mechanism;
a first spring (14) arranged on the right side of the extrusion plate (13) for providing left thrust for the extrusion plate (13);
the fixed plate (15) is arranged at the right end of the first spring (14) to provide support for the first spring (14), the fixed plate (15) is fixed in the outer cover body (12), and the right end of the extrusion plate (13) penetrates through the fixed plate (15) and the fixed plate (15) to form a left-right sliding structure;
the right pulling mechanism is arranged on the right side of the fixed plate (15) and controls the right movement of the extrusion plate (13).
5. A self-sealing, gas-tight vacuum pump according to claim 4, wherein: the right pulling mechanism comprises a magnetic plate (16) and an electromagnet (17);
a magnetic plate (16) fixed at the right end of the extrusion plate (13);
and an electromagnet (17) arranged on the right side of the magnetic plate (16), wherein the electromagnet (17) is fixed inside the housing body (12) and provides attractive force for the magnetic plate (16) when the power is on.
6. A self-sealing, gas-tight vacuum pump according to claim 1, wherein: the sealing block (20) is of a spherical structure design, the diameter of the sealing block (20) is larger than that of the through hole (19), and the outer side of the sealing block (20) is made of rubber.
7. A self-sealing, air-tight vacuum pump according to claim 1 or 5, characterized in that: the vertical position control mechanism comprises a second spring (22), a first control air bag (24) and a second connecting pipe (25);
the second spring (22) is arranged above the connecting block (21) and provides lower thrust for the connecting block (21);
a first control air bag (24) arranged below the connecting block (21);
and a second connection pipe (25) provided outside the first control airbag (24) and connecting the first control airbag (24) and the supplementary airbag (11) to each other.
8. A self-sealing, gas-tight vacuum pump according to claim 1, wherein: the movable cover (5) is provided with a mounting bolt (26) on the outer side, a connecting groove (27) corresponding to the mounting bolt (26) is formed in the left side of the fixed cover (4), the movable cover (5) is fixed on the fixed cover (4) through threaded connection between the mounting bolt (26) and the connecting groove (27), and a limiting mechanism is arranged on the right side of the mounting bolt (26) to limit rotation of the mounting bolt (26).
9. A self-sealing, gas-tight vacuum pump according to claim 8, wherein: the limiting mechanism comprises a positioning groove (28), a locking rod (29), a connecting plate (30), a third spring (31), a second control air bag (32) and a third connecting pipe (33);
the positioning groove (28) is formed in the right side surface of the mounting bolt (26) and is staggered with the circle center of the mounting bolt (26);
a locking lever (29) which is provided inside the connecting groove (27) and forms a locking structure with the positioning groove (28);
the connecting plate (30) is fixed at the right end of the locking rod (29), and a left-right sliding structure is formed between the connecting plate (30) and the fixed cover (4);
the third spring (31) is arranged on the right side of the connecting plate (30) and provides left thrust for the connecting plate (30);
a second control airbag (32) disposed on the left side of the connection plate (30);
and a third connection pipe (33) provided outside the second control airbag (32) and connecting the second control airbag (32) and the supplementary airbag (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310567713.5A CN116378997A (en) | 2023-05-19 | 2023-05-19 | Self-sealing air leakage-proof vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310567713.5A CN116378997A (en) | 2023-05-19 | 2023-05-19 | Self-sealing air leakage-proof vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116378997A true CN116378997A (en) | 2023-07-04 |
Family
ID=86965910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310567713.5A Withdrawn CN116378997A (en) | 2023-05-19 | 2023-05-19 | Self-sealing air leakage-proof vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116378997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118066121A (en) * | 2024-04-19 | 2024-05-24 | 铁氟龙防腐科技(江苏)有限公司 | Non-leakage vertically-installed double-suction pump |
-
2023
- 2023-05-19 CN CN202310567713.5A patent/CN116378997A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118066121A (en) * | 2024-04-19 | 2024-05-24 | 铁氟龙防腐科技(江苏)有限公司 | Non-leakage vertically-installed double-suction pump |
| CN118066121B (en) * | 2024-04-19 | 2024-07-16 | 铁氟龙防腐科技(江苏)有限公司 | Non-leakage vertically-installed double-suction pump |
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20230704 |