CN206582088U - Strengthen closed type straight line opposed piston electric vacuum pump - Google Patents
Strengthen closed type straight line opposed piston electric vacuum pump Download PDFInfo
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- CN206582088U CN206582088U CN201720329872.1U CN201720329872U CN206582088U CN 206582088 U CN206582088 U CN 206582088U CN 201720329872 U CN201720329872 U CN 201720329872U CN 206582088 U CN206582088 U CN 206582088U
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- closed type
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Abstract
The utility model is related to a kind of reinforcement closed type straight line opposed piston electric vacuum pump, including pump case, motor assembly, crankshaft group, piston assembly, upper lid, middle cover, check valve and unidirectional bonnet, vacuum tube joint, it is characterised in that：Pump case two ends offer the piston hole of correspondence piston assembly respectively, the piston outer periphery of piston assembly is brought into close contact with piston hole and along piston hole axially reciprocating, the length of piston hole is more than the single direction stroke of piston, the inlet chamber connected with the air flue in pump case is formed between check valve and unidirectional bonnet, sealing cotton is respectively equipped between upper lid and middle cover and pump case, in check valve side insertion pump case, opposite side is connected with unidirectional bonnet using seam, check valve, rubber rectangular ring is unidirectionally provided between bonnet and pump case, rubber gasket is additionally provided between the contact surface of unidirectional bonnet and pump case.Not only good sealing effect, and reduce vavuum pump parts, reduces manufacturing procedure, reduces production cost and noise.
Description
Technical field
The utility model is related to straight line opposed piston electric vacuum pump, particularly a kind of to strengthen the opposed work of closed type straight line
Plug electric vacuum pump.
Background technology
At present, it is not change the original brakes of electric automobile, the demand of the vacuum of brakes can be met again, electricity
Dynamic vavuum pump is widely used on electric automobile.
The A of CN 105114283 disclose a kind of straight line opposed piston electric vacuum pump, it include direct current generator, bent axle,
Connecting rod, piston, cylinder barrel, check valve sheet, unidirectional bonnet, air flue, vacuum tube joint, the pump housing, electric motor end cap；Vavuum pump is double-piston
Structure, it is left and right to be respectively provided with a cylinder barrel；The drive shaft of motor, which drives, connects two connecting rods, through connecting rod band on crank rotation, bent axle
Dynamic piston is moved in cylinder barrel, and the first check valve sheet and the second check valve are designed with the base member of piston and cylinder barrel
Piece, vacuum system passes through the second check valve sheet in vacuum tube, air flue, cylinder barrel base member and cylinder barrel internal flow UNICOM；Cylinder
Cylinder is internal to be connected by the first check valve sheet on piston with vacuum pump body inside；Pump body sidewall is provided with venthole, discharge
Gas be discharged into through steam vent in air.The vavuum pump is on the basis of vacuum is met, and piston structure is compacter, makes the pump housing
Volume it is relatively reduced, be that limited engine room saves space.But itself and existing traditional vavuum pump are present asks as follows
Topic：Because the pump housing, electric motor end cap, cylinder barrel, unidirectional bonnet are Split type structure, the sealing property of vavuum pump, vacuum are directly affected
Pump configuration needs further optimization.
The content of the invention
The purpose of this utility model is to provide for a kind of reinforcement closed type straight line opposed piston electric vacuum pump, not only
Good sealing effect, and vavuum pump parts are reduced, manufacturing procedure is reduced, production cost is reduced, noise is reduced.
The technical solution of the utility model is：
One kind strengthen closed type straight line opposed piston electric vacuum pump, including the pump case with air flue, motor assembly, with
The connected crankshaft group of motor assembly, two piston assemblies in straight line opposed mode being arranged connected with crankshaft group, it is located at
The upper lid with muffler at the top of pump case, the middle cover between pump case and motor assembly, located at pump case two ends
Check valve and unidirectional bonnet, the vacuum tube joint being connected with the air flue of pump case, it is characterised in that：The pump case two ends are opened up respectively
There is the piston hole of corresponding piston assembly, the piston outer periphery of the piston assembly is brought into close contact and axially past along piston hole with piston hole
Multiple motion, the length of the piston hole is more than the single direction stroke of piston, is formed and pump case between the check valve and unidirectional bonnet
The inlet chamber of interior air flue connection, sealing cotton, the check valve side are respectively equipped between the upper lid and middle cover and pump case
Insert in pump case, opposite side is connected with unidirectional bonnet using seam, is provided between the check valve, unidirectional bonnet and pump case
Rubber gasket is additionally provided between rubber rectangular ring, the contact surface of the unidirectional bonnet and pump case.
Above-mentioned reinforcement closed type straight line opposed piston electric vacuum pump, the pore wall thickness of the piston hole is 5.8mm
More than.
Above-mentioned reinforcement closed type straight line opposed piston electric vacuum pump, the piston assembly is by piston and connection rod set
Into the connecting rod is connected with the bent axle of crankshaft group, and the rear end of the connecting rod is provided with the through hole of correspondence bent axle and the through hole
Provided with bearing, the inner ring of the bearing is set on the bent axle.
Above-mentioned reinforcement closed type straight line opposed piston electric vacuum pump, the crankshaft group is by bent axle, located at bent axle
The balancing weight I of upper end, the balancing weight II located at bent axle lower end, the copper sheathing composition between the connecting rod located at two piston assemblies,
The balancing weight II is provided with the through hole being connected with the motor shaft of motor assembly.
Above-mentioned reinforcement closed type straight line opposed piston electric vacuum pump, the middle cover is aluminum lid, by annular bottom
Seat and annular gland composition, the annular gland upper surface is provided with the through hole of correspondence motor shaft, between lower surface and annular base
Provided with sealing ring.
Above-mentioned reinforcement closed type straight line opposed piston electric vacuum pump, the piston is by being respectively equipped with the branch of passage
Fagging and pressing plate, the one-way sealing mounting between supporting plate and pressing plate and leather cup composition, the piston are anchored on using screw
The end of connecting rod.
Above-mentioned reinforcement closed type straight line opposed piston electric vacuum pump, the muffler by with check valve and
Fixed lower cover, the silencing cotton in the space that upper lid and lower cover are surrounded are connect with top cap, located at upper lid and lower cover contact surface
Between sealing cotton composition.
The beneficial effects of the utility model are：
1st, eliminate and use cylinder barrel, the direct machining piston hole on pump case coordinates with piston assembly and realizes air suction function, no
Workpiece is only reduced, manufacturing procedure is reduced, and improves overall sealing property, production cost is reduced, reduced
Noise.
2nd, the sealing sponge between unidirectional bonnet and pump case is eliminated, check valve and list are realized using rubber rectangular ring
To the sealing between bonnet and pump case, waterproof effect is more preferably.
3rd, eliminate and use cylinder barrel, vacuum pump structure is more compact, and assembly is more compact.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 top view；
Fig. 3 is Fig. 1 left view；
Fig. 4 is the structural representation of pump case of the present utility model；
Fig. 5 is Fig. 4 top view；
Fig. 6 be in Fig. 5 A-A to profile.
In figure：1. motor assembly, 2. annular bases, 3. pump cases, 301. air flues, 302. piston holes, 303. mounting holes, 4. lists
Lid on to bonnet, 5. check valves, 6. rubber rectangular rings, 7., 8. silencing cottons, 9. lower covers, 10. sealing cottons, 11. balancing weights I,
12. bent axle, 13. bearings, 14. connecting rods, 15. supporting plates, 16. pressing plates, 17. one-way sealing mountings, 18. leather cups, 19. inlet chambers, 20.
Balancing weight II, 21. annular glands, 22. sealing rings, 23. copper sheathings, 24. sealing cottons, 25. vacuum tube joints, 26 rubber gaskets.
Embodiment
As shown in figs 1 to 6, the reinforcement closed type straight line opposed piston electric vacuum pump, including pump case 3, motor assembly
Two piston assemblies arranged in the opposed mode of straight line 1st, with crankshaft group that motor assembly 1 is connected, connected with crankshaft group,
Located at the upper lid 7 with muffler at the top of pump case 3, the middle cover between pump case 3 and motor assembly 1, located at pump
The check valve 5 and unidirectional bonnet 4 at the two ends of shell 3, the vacuum tube joint 25 being connected with the air flue 301 of pump case 3.
The two ends of pump case 3 offer the piston hole 302 of correspondence piston assembly, the piston outer periphery of the piston assembly respectively
It is brought into close contact with piston hole 302 and along the axially reciprocating of piston hole 302, the length of the piston hole 302 is more than the list of piston
Inlet chamber 19 is formed to stroke, between the check valve 5 and unidirectional bonnet 4 to communicate with air flue 301 in pump case 3, and then and vacuum
Pipe joint 25 is connected.Sealing cotton is respectively equipped between the upper lid 7 and pump case 3, between the annular base 2 of middle cover and pump case 3
24, the side of check valve 5 is inserted in pump case 3, and opposite side is connected with unidirectional bonnet 4 using seam, the He of check valve 5
Unidirectionally it is provided between rubber rectangular ring 6, the contact surface of the unidirectional bonnet 4 and pump case 3 and separately sets between bonnet 4 and pump case 3
There is rubber gasket 26.The pore wall thickness of the piston hole 302 is more than 5.8mm.The pump case 3 is additionally provided with correspondence vacuum tube and connect
First 25 mounting hole 303.
The piston assembly is made up of piston and connecting rod 14, and the connecting rod 14 is connected with the bent axle 12 of crankshaft group, described
The rear end of connecting rod 14 is provided with the through hole of correspondence bent axle 12 and the through hole and is provided with bearing 13, and the inner ring of the bearing 13 is set in
On the bent axle 12.Balancing weight I 11 of the crankshaft group by bent axle 12, located at the upper end of bent axle 12, located at the lower end of bent axle 12
Balancing weight II 20, the copper sheathing 23 between the connecting rod 14 located at two piston assemblies are constituted, the balancing weight II 20 be provided with
The through hole of the motor shaft connection of motor assembly 1.The piston is by being respectively equipped with the supporting plate 15 and pressing plate 16 of passage, located at branch
One-way sealing mounting 17 and leather cup 18 between fagging 15 and pressing plate 16 are constituted, and the piston is anchored on the end of connecting rod 14 using screw
Portion.The middle cover be aluminum lid, be made up of annular base 2 and annular gland 21, the upper surface of annular gland 21 provided with pair
The through hole of motor shaft is answered, sealing ring 22 is provided between lower surface and annular base 2.The muffler by with check valve and
The lower cover 9 that is connected with upper lid 7, the silencing cotton 8 in the space that upper lid 7 and lower cover 9 are surrounded, located at upper lid 7 and lower cover 9
Sealing cotton 10 between contact surface constitutes.
Claims (7)
1. one kind strengthens closed type straight line opposed piston electric vacuum pump, including the pump case with air flue, motor assembly and electricity
The connected crankshaft group of machine assembly, two piston assemblies in straight line opposed mode being arranged connected with crankshaft group, located at pump
The upper lid with muffler, the middle cover between pump case and motor assembly, the list located at pump case two ends at the top of shell
The vacuum tube joint being connected to valve and unidirectional bonnet, with the air flue of pump case, it is characterised in that：The pump case two ends are offered respectively
The piston hole of correspondence piston assembly, the piston outer periphery of the piston assembly is brought into close contact with piston hole and along piston hole axial reciprocating
Motion, the length of the piston hole is more than the single direction stroke of piston, between the check valve and unidirectional bonnet in formation and pump case
Air flue connection inlet chamber, it is described it is upper lid middle cover and pump case between be respectively equipped with sealing cotton, the check valve side insert
Enter in pump case, opposite side is connected with unidirectional bonnet using seam, square is provided between the check valve, unidirectional bonnet and pump case
Rubber gasket is additionally provided between shape rubber seal, the contact surface of the unidirectional bonnet and pump case.
2. reinforcement closed type straight line opposed piston electric vacuum pump according to claim 1, it is characterised in that：The work
The pore wall thickness of consent is more than 5.8mm.
3. reinforcement closed type straight line opposed piston electric vacuum pump according to claim 1, it is characterised in that：The work
Plug assembly is made up of piston and connecting rod, and the connecting rod is connected with the bent axle of crankshaft group, and the rear end of the connecting rod is bent provided with correspondence
Bearing is provided with the through hole of axle and the through hole, the inner ring of the bearing is set on the bent axle.
4. reinforcement closed type straight line opposed piston electric vacuum pump according to claim 1, it is characterised in that：The song
Shaft assembly is by bent axle, the balancing weight I located at bent axle upper end, the balancing weight II located at bent axle lower end, every located at two piston assemblies
Connecting rod between copper sheathing composition, the balancing weight II is provided with the through hole that is connected with the motor shaft of motor assembly.
5. reinforcement closed type straight line opposed piston electric vacuum pump according to claim 1, it is characterised in that：In described
Between lid be aluminum lid, be made up of annular base and annular gland, the annular gland upper surface be provided with correspondence motor shaft through hole,
Sealing ring is provided between lower surface and annular base.
6. reinforcement closed type straight line opposed piston electric vacuum pump according to claim 3, it is characterised in that：The work
Plug is constituted by being respectively equipped with the supporting plate and pressing plate of passage, the one-way sealing mounting between supporting plate and pressing plate and leather cup,
The piston is anchored on the end of connecting rod using screw.
7. reinforcement closed type straight line opposed piston electric vacuum pump according to claim 1, it is characterised in that：The row
Gas muffler with check valve and with top cap by connecing fixed lower cover, the noise reduction in the space that upper lid and lower cover are surrounded
Cotton, the sealing cotton composition between upper lid and lower cover contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329872.1U CN206582088U (en) | 2017-03-31 | 2017-03-31 | Strengthen closed type straight line opposed piston electric vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720329872.1U CN206582088U (en) | 2017-03-31 | 2017-03-31 | Strengthen closed type straight line opposed piston electric vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582088U true CN206582088U (en) | 2017-10-24 |
Family
ID=60115392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720329872.1U Expired - Fee Related CN206582088U (en) | 2017-03-31 | 2017-03-31 | Strengthen closed type straight line opposed piston electric vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197568A (en) * | 2018-11-20 | 2020-05-26 | 娄施玉 | Miniature reciprocating oil-free vacuum pump |
-
2017
- 2017-03-31 CN CN201720329872.1U patent/CN206582088U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197568A (en) * | 2018-11-20 | 2020-05-26 | 娄施玉 | Miniature reciprocating oil-free vacuum pump |
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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: 20171024 Termination date: 20200331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |