CN105443364A - Negative pressure pump provided with membrane disc - Google Patents
Negative pressure pump provided with membrane disc Download PDFInfo
- Publication number
- CN105443364A CN105443364A CN201511024339.6A CN201511024339A CN105443364A CN 105443364 A CN105443364 A CN 105443364A CN 201511024339 A CN201511024339 A CN 201511024339A CN 105443364 A CN105443364 A CN 105443364A
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- pressure pump
- membranous disc
- disc
- pump
- Prior art date
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/047—Pumps having electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a negative pressure pump provided with a membrane disc and aims to provide a negative pressure pump provided with a membrane disc, wherein the negative pressure pump is simple in structure and long in service life. The main points of the technical scheme are that the negative pressure pump comprises two pump bodies; each pump body is provided with two negative pressure pump chambers which are communicated with each other; each negative pressure pump chamber is provided with a fixed disc and a membrane disc which are matched with each other; each fixed disc is fixedly arranged at one side inside each negative pressure pump chamber and is provided with an air inlet and an air outlet; the air inlet and the air outlet are both provided with a one way valve; the membrane disc is a planar rubber membrane; each fixed disc is adhered to one side of the membrane disc and is molded by being recessed inwards; a driving device for driving the rubber membrane of a movable membrane disc to perform piston reciprocating motion with respect to the fixed membrane disc is arranged between the two pump bodies.
Description
Technical field
The present invention relates to negative pressure pump field, more particularly, it relates to a kind of membranous disc negative pressure pump.
Background technique
Along with development, future automobile be unable to do without new energy, new-energy automobile be unable to do without electronic pump, and negative pressure pump is the one of electronic pump, and negative pressure pump is also brake system critical component, if it is malfunctioning that negative pressure pump cisco unity malfunction and the potential safety hazard caused are exactly brake system, the electronic pump life-span that the automatic system of current new-energy automobile adopts is low, and cost is high, poor performance, environment is limited has a strong impact on brake system, and once goes wrong and cannot travel.
But existing negative pressure pump adopts single diaphragm or two diaphragm, the diaphragm working room of negative pressure pump is interoperation relationships, once occur that arbitrary diaphragm damages and cannot normally finish the work, automobile will be caused to travel.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide that a kind of structure is simple, the membranous disc negative pressure pump of high life.
For achieving the above object, the invention provides following technological scheme:
A kind of membranous disc negative pressure pump, comprise two pump housings, each pump housing is provided with two negative pressure pump chambers be interconnected, each negative pressure pump chamber is provided with cooperatively interact price fixing and membranous disc, described price fixing is fixedly installed on the indoor side of negative pressure pump, and described price fixing is provided with suction port and air outlet, and described suction port and air outlet are provided with one-way valve, described membranous disc is flat rubber film, and the side that described price fixing is fitted on membranous disc is shaping towards indent; The drive unit that the elastomer diaphragm ordering about dynamic membranous disc determines membranous disc reciprocating motion of the pistons is relatively provided with between two pump housings.
The present invention is arranged further: described drive unit comprises motor, described motor is provided with former and later two output shafts, two output shafts and two pump housing one_to_one corresponding are located in the pump housing, each output shaft is connected with two counterweights, each counterweight is connected with connecting rod, described connecting rod is connected with membranous disc, and described motor is by the to-and-fro motion of counterweight drivening rod.
The present invention is arranged further: the arragement direction of the negative pressure pump chamber of two pump housings is mutually vertical.
The present invention is arranged further: described air outlet is filled with sound-absorbing sponge.
Beneficial effect of the present invention: hammered into shape by motor output shaft driven equilibrium, counterweight is by self eccentric drive connecting rod, connection-rod linkage membranous disc pulls, membranous disc and price fixing produce twitch work, membranous disc with price fixing push-and-pull dynamic do in process to produce be vented or negative inspiratory pressure, closed check valve when now membranous disc is released when contacting price fixing completely on suction port, therefore can only be vented, the closed check valve of air outlet when membranous disc retracts, membranous disc leave price fixing so time can only do intake negative-pressure work, this membranous disc negative pressure pump is provided with two pump housings, a drive unit drives the negative pressure pump chamber of two pump housings to carry out work simultaneously, increase work efficiency, when in this membranous disc negative pressure pump, any membranous disc damages, the one-way valve of this negative pressure pump chamber will close the circulation of fluid, thus do not affect any negative pressure pump chamber or many negative pressure pump chamber works on, can reduce because the flow of this membranous disc negative pressure pump Natural Damage on work negative pressure fluid affected, structure is simple, high life, negative pressure pump is when quitting work simultaneously, hydrodynamic pressure in negative pressure pump working room can remain on the state of negative pressure working value always, and the fluid in pump chamber can not be revealed, this function can reach most high negative pressure value when also ensure that negative pressure pump startup work next time within the shortest time.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of membranous disc negative pressure pump of the present invention;
Fig. 2 is the erection drawing of drive unit and membranous disc.
Description of reference numerals: 1, the pump housing; 11, negative pressure pump chamber; 2, price fixing; 21, suction port; 22, air outlet; 3, membranous disc; 4, drive unit; 41, motor; 42, counterweight; 43, connecting rod.
Embodiment
With reference to accompanying drawing 1 to Fig. 2, a kind of membranous disc negative pressure pump of the present invention is described in further details.
A kind of membranous disc negative pressure pump, comprise two pump housings 1, each pump housing 1 is provided with two negative pressure pump chambers 11 be interconnected, each negative pressure pump chamber 11 is provided with cooperatively interact price fixing 2 and membranous disc 3, described price fixing 2 is fixedly installed on side in negative pressure pump chamber 11, and described price fixing 2 is provided with suction port 21 and air outlet 22, and described suction port 21 and air outlet 22 are provided with one-way valve, described membranous disc 3 is flat rubber film, and the side that described price fixing 2 is fitted on membranous disc 3 is shaping towards indent; The drive unit 4 that the elastomer diaphragm ordering about dynamic membranous disc 3 determines membranous disc 3 reciprocating motion of the pistons is relatively provided with between two pump housings 1.
Described drive unit 4 comprises motor 41, wherein motor 41 is DC brushless motor 41, the fast of motor work can be adjusted or low-rotate speed meets different efficiency requirements, described motor 41 is provided with former and later two output shafts, two output shafts and two pump housing 1 one_to_one corresponding are located in the pump housing 1, each output shaft is connected with two counterweights 42, each counterweight 42 is connected with connecting rod 43, described connecting rod 43 is connected with membranous disc 3, described motor 41 is by the to-and-fro motion of counterweight 42 drivening rod 43, the clockwise and anticlockwise of its motor 41 does not affect the normal work of pump, improve product usability.
Wherein the arragement direction of the negative pressure pump chamber 11 of two pump housings 1 is mutually vertical, and the output shaft of motor 41 is in rotation process, and four negative pressure pump chambers 11 can alternate reciprocating motion, effectively can reduce the output power of motor 41.
Wherein said air outlet 22 is filled with sound-absorbing sponge, during exhaust, is vented and arrives exhaust duct by price fixing 2, carries out noise reduction process discharging discharge completely by sound-absorbing sponge, reduces noise.
Working principle: by motor 41 output shaft driven equilibrium hammer 42, counterweight 42 is by self eccentric drive connecting rod 43, connecting rod 43 membranous disc 3 that links pulls, membranous disc 3 and price fixing 2 produce twitch work, membranous disc 3 with price fixing 2 push-and-pull dynamic do in process to produce be vented or negative inspiratory pressure, closed check valve when now membranous disc 3 is released when contacting price fixing 2 completely on suction port 21, therefore can only be vented, the closed check valve of air outlet 22 when membranous disc 3 retracts, membranous disc 3 leave price fixing 2 so time can only do intake negative-pressure work, this membranous disc 3 negative pressure pump is provided with two pump housings 1, a drive unit 4 drives the negative pressure pump chamber 11 of two pump housings 1 to carry out work simultaneously, increase work efficiency, when in this membranous disc 3 negative pressure pump, any membranous disc 3 damages, the one-way valve of this negative pressure pump chamber 11 will close the circulation of fluid, thus do not affect any negative pressure pump chamber 11 or many negative pressure pump chamber 11 works on, can reduce because the flow of this membranous disc 3 negative pressure pump Natural Damage on work negative pressure fluid affected, structure is simple, high life, negative pressure pump is when quitting work simultaneously, hydrodynamic pressure in negative pressure pump working room can remain on the state of negative pressure working value always, and the fluid in pump chamber can not be revealed, this function can reach most high negative pressure value when also ensure that negative pressure pump startup work next time within the shortest time.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technological schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a membranous disc negative pressure pump, it is characterized in that: comprise two pump housings, each pump housing is provided with two negative pressure pump chambers be interconnected, each negative pressure pump chamber is provided with cooperatively interact price fixing and membranous disc, described price fixing is fixedly installed on the indoor side of negative pressure pump, and described price fixing is provided with suction port and air outlet, and described suction port and air outlet are provided with one-way valve, described membranous disc is flat rubber film, and the side that described price fixing is fitted on membranous disc is shaping towards indent;
The drive unit that the elastomer diaphragm ordering about dynamic membranous disc determines membranous disc reciprocating motion of the pistons is relatively provided with between two pump housings.
2. membranous disc negative pressure pump according to claim 1, it is characterized in that: described drive unit comprises motor, described motor is provided with former and later two output shafts, two output shafts and two pump housing one_to_one corresponding are located in the pump housing, each output shaft is connected with two counterweights, each counterweight is connected with connecting rod, and described connecting rod is connected with membranous disc, and described motor is by the to-and-fro motion of counterweight drivening rod.
3. membranous disc negative pressure pump according to claim 1, is characterized in that: the arragement direction of the negative pressure pump chamber of two pump housings is mutually vertical.
4. the membranous disc negative pressure pump according to claim 1 or 2 or 3, is characterized in that: described air outlet is filled with sound-absorbing sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024339.6A CN105443364A (en) | 2015-12-29 | 2015-12-29 | Negative pressure pump provided with membrane disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024339.6A CN105443364A (en) | 2015-12-29 | 2015-12-29 | Negative pressure pump provided with membrane disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443364A true CN105443364A (en) | 2016-03-30 |
Family
ID=55553911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511024339.6A Pending CN105443364A (en) | 2015-12-29 | 2015-12-29 | Negative pressure pump provided with membrane disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443364A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262114Y (en) * | 1996-07-12 | 1997-09-10 | 中国辐射防护研究院 | Double end double body diaphram pump with buffering chamber |
| CN1539061A (en) * | 2000-10-18 | 2004-10-20 | 托马斯工业股份有限公司 | Diaphragm pump with support ring |
| CN201165968Y (en) * | 2008-03-05 | 2008-12-17 | 周纪昌 | Energy-saving noise reduction vacuum pump |
| US20100202893A1 (en) * | 2007-09-11 | 2010-08-12 | Continental Tees AG & Co., oHG | Motor/pump assembly |
| CN101839234A (en) * | 2010-04-23 | 2010-09-22 | 宁波拓普制动系统有限公司 | Vehicle dual-diaphragm electronic vacuum pump |
| CN105134567A (en) * | 2015-07-21 | 2015-12-09 | 石家庄佳信汽车制动系统有限公司 | Horizontally-opposite diaphragm type electric vacuum pump |
| CN205243804U (en) * | 2015-12-29 | 2016-05-18 | 天津金益泰科技有限公司 | Membranous disc negative pressure pump |
-
2015
- 2015-12-29 CN CN201511024339.6A patent/CN105443364A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262114Y (en) * | 1996-07-12 | 1997-09-10 | 中国辐射防护研究院 | Double end double body diaphram pump with buffering chamber |
| CN1539061A (en) * | 2000-10-18 | 2004-10-20 | 托马斯工业股份有限公司 | Diaphragm pump with support ring |
| US20100202893A1 (en) * | 2007-09-11 | 2010-08-12 | Continental Tees AG & Co., oHG | Motor/pump assembly |
| CN201165968Y (en) * | 2008-03-05 | 2008-12-17 | 周纪昌 | Energy-saving noise reduction vacuum pump |
| CN101839234A (en) * | 2010-04-23 | 2010-09-22 | 宁波拓普制动系统有限公司 | Vehicle dual-diaphragm electronic vacuum pump |
| CN105134567A (en) * | 2015-07-21 | 2015-12-09 | 石家庄佳信汽车制动系统有限公司 | Horizontally-opposite diaphragm type electric vacuum pump |
| CN205243804U (en) * | 2015-12-29 | 2016-05-18 | 天津金益泰科技有限公司 | Membranous disc negative pressure pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
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| RJ01 | Rejection of invention patent application after publication |