CN203384026U - Mute rotation type piston pump - Google Patents
Mute rotation type piston pump Download PDFInfo
- Publication number
- CN203384026U CN203384026U CN201320480619.8U CN201320480619U CN203384026U CN 203384026 U CN203384026 U CN 203384026U CN 201320480619 U CN201320480619 U CN 201320480619U CN 203384026 U CN203384026 U CN 203384026U
- Authority
- CN
- China
- Prior art keywords
- piston
- air inlet
- pump
- cavity
- end cap
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a mute rotation type piston pump. The mute rotation type piston pump comprises a pump shell, a piston pump assembly and a driving mechanism, wherein the piston pump assembly is arranged in the pump shell, and the driving mechanism is used for driving the piston pump assembly. The piston pump assembly comprises rubber pistons which are annularly and evenly distributed in the pump shell, the installing surface of the pump shell is provided with installing holes corresponding to the rubber pistons one to one, a piston cavity is formed in each rubber piston, and one end of each piston cavity is open. The mute rotation type piston pump further comprises an end cover arranged on the installing surface of the pump shell in an airtight covering mode, the end cover is provided with an air outlet, an air outlet communication channel is formed between the air outlet and the piston cavities. The pump shell is provided with an air inlet, and an air inlet communication channel communicated with the piston cavities is formed between the installing surface of the pump shell and the end cover. The air outlet communication channel and the air inlet communication channel are provided with one-way valve structures respectively. By improving the air inlet structure and the air outlet structure, the mute rotation type piston pump can reduce noise effectively and be assembled conveniently.
Description
Technical field
The utility model belongs to the positive displacement compression pump technical field, and concrete is a kind of quiet rotary-piston pump.
Background technique
As shown in Figure 1, be the structural representation of existing a kind of diaphragm pump.This diaphragm pump comprises cylinder 1, mount cover casing 2 on cylinder 1, be arranged on rubber piston 3 on cylinder 1 and for driving the reciprocating driving mechanism of rubber piston 3, driving mechanism comprises motor 4 and spiral arm 5, the output shaft of motor 4 is provided with eccentric wheel 6, and between eccentric wheel 6 and spiral arm 5, by connecting rod 7, be connected, connecting rod 7 bias are arranged on eccentric wheel 6.The other end of cylinder 1 mounts cover and is provided with valve cover 8, valve cover 8 is provided with air outlet 9, and be provided with expulsion valve 10 corresponding to air outlet 9 on cylinder 1, rubber piston 3 and expulsion valve 10 are set to one, be provided with Aspirating valves 11 and intakeport 12 corresponding to rubber piston 3 also on valve cover 8.
During use, output shaft band movable eccentric wheel 6 rotations of motor 4, and then the true dip direction of change connecting rod 7, spiral arm 5 also rotates along with eccentric wheel 6, and changes its true dip direction, drives rubber piston 3 reciprocating, realizes the function of pump.During the pump chamber volume-diminished in rubber piston 3, the gas pressure in pump chamber increases, and opens expulsion valve 10, fluid is 9 discharges from air outlet, when the volume of the pump chamber in rubber piston increases, can open the Aspirating valves 11 of umbrella shape, extraneous gas enters pump chamber in intakeport 12.
So, by the variation of pump chamber volume, extraneous gas enters in pump chamber by Aspirating valves 11, then flows into the gas of pump chamber again by expulsion valve 10 supply gas, plays the effect of pump.But, because the air bag space be comprised of rubber piston 3 and expulsion valve 10 is less, the gas turnover is quick and fluidised form is unstable, causes the noise of this diaphragm pump larger; In addition, the complex structure of the Aspirating valves 11 of umbrella shape, have the inconvenience of making and difficult defect be installed.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of quiet rotary-piston pump, and this plug pump has advantages of that noise is little, simple in structure and easy to assembly.
For achieving the above object, the utility model provides following technological scheme:
A kind of quiet rotary-piston pump, comprise pump case, be arranged on reciprocating pump assembly in described pump case and for driving the driving mechanism of described reciprocating pump assembly; Described reciprocating pump assembly comprises the uniform rubber piston be arranged in described pump case of annular, on the attachment face of described pump case, with the described rubber piston corresponding mounting hole that is provided with one by one, is provided with the piston cavity of an end opening in described rubber piston;
Also comprise that airtight cover is contained in the end cap on described pump case attachment face, described end cap is provided with air outlet, between described air outlet and described piston cavity, is provided with the communicating passage of giving vent to anger;
Described pump case is provided with suction port, and is provided with the air inlet communicating passage communicated with described piston cavity between the attachment face of described pump case and described end cap;
Be equipped with one-way valve structures on described give vent to anger communicating passage and air inlet communicating passage.
Further, described driving mechanism comprises motor, is arranged on roulette wheel and the spiral arm be connected with described rubber piston on described motor output shaft, between described roulette wheel and spiral arm, by connecting rod, be connected, and described connecting rod bias is arranged on described roulette wheel.
Further, described motor is motor with cup rotor; The output shaft of described motor with cup rotor is provided with cooling fan, and described cooling fan is positioned at the end of described motor with cup rotor output shaft away from described pump case.
Further, described pump case comprises that cylinder body and airtight cover are contained in the bonnet on described cylinder body, and described rubber piston is arranged on described cylinder body, and described suction port is arranged on described bonnet.
Further, the described communicating passage of giving vent to anger comprises the outlet chamber be arranged in described end cap, the corresponding connectivity structure that is provided with one by one between described outlet chamber and described piston cavity.
Further, described connectivity structure comprises the communicated cavity be arranged in described end cap, between described communicated cavity and described outlet chamber and piston cavity, is respectively equipped with connecting port, and the position of two described connecting ports is staggered.
Further, be provided with the unidirectional diaphragm of giving vent to anger with the connecting port of the corresponding setting of described piston cavity.
Further, described air inlet communicating passage comprises and the described rubber piston corresponding air inlet connecting port be arranged on described attachment face one by one, between described attachment face and described end cap, be provided with for being communicated with the gas-entered passageway of described air inlet connecting port and piston cavity, described air inlet connecting port is provided with the one-way air inlet diaphragm.
Further, described gas-entered passageway is and described air inlet connecting port and the corresponding connectivity slot be arranged on described end cap of piston cavity.
Further, all described rubber pistons all are set to one and form diaphragm main body, and on described diaphragm main body, with the corresponding intercommunicating pore that arranges of described air inlet connecting port, and described one-way air inlet diaphragm and described diaphragm main body are set to one and are positioned on described intercommunicating pore.
The beneficial effects of the utility model are:
Quiet rotary-piston pump of the present utility model, by between the direct air outlet at end cap and piston cavity, the communicating passage of giving vent to anger being set, abandoned the structural type that existing employing expulsion valve carries out exhaust, make the exhaust structure of end cap simpler, and the direct corresponding piston cavity setting of the communicating passage of giving vent to anger, compared to the form of the existing passage communicated with expulsion valve in the setting of pump chamber side, the uniformity of exhaust is better, more unobstructed;
By suction port is arranged on pump case, and between the attachment face of pump case and end cap, the air inlet communicating passage communicated with piston cavity is set, abandoned the air intake structure of the suction valve of existing umbrella shape, and charge air flow is introduced into the so larger space of pump case, after current stabilization, by the air inlet communicating passage, enter in piston cavity again, can make the air-flow fluidised form in the air inlet communicating passage more stable, can effectively reduce noise;
In addition, when assembling quiet rotary-piston pump of the present utility model, owing to having abandoned expulsion valve and suction valve, only in the corresponding position of give vent to anger communicating passage and air inlet communicating passage, one-way valve structures is set and gets final product, so structure more simple, make and assembling also convenient.
The accompanying drawing explanation
In order to make the purpose of this utility model, technological scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
The structural representation that Fig. 1 is existing diaphragm pump;
The structural representation that Fig. 2 is the quiet rotary-piston pump embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 2, be the quiet rotary-piston pump embodiment's of the utility model structural representation.The quiet rotary-piston pump of the present embodiment, comprise pump case 20, be arranged on reciprocating pump assembly in pump case 20 and for the driving mechanism of driven plunger pump assembly.The reciprocating pump assembly comprises the uniform rubber piston 21 be arranged in pump case 20 of annular, and on the attachment face 22 of pump case 20, with the rubber piston 21 corresponding mounting hole that is provided with one by one, rubber piston 21 is arranged on mounting hole, is provided with the piston cavity of an end opening in rubber piston 21.Rubber piston 21 annular of the present embodiment is uniform is set to 5.
Be equiped with end cap 23 with its airtight cover on the attachment face 22 of pump case 20, end cap 23 is provided with between 24， air outlet 24, air outlet and piston cavity and is provided with the communicating passage of giving vent to anger.Pump case 20 is provided with suction port 25, and is provided with the air inlet communicating passage communicated with piston cavity between the attachment face 22 of pump case 20 and end cap 23.Be equipped with one-way valve structures on the communicating passage of giving vent to anger and air inlet communicating passage, only can give vent to anger from piston cavity by one-way valve structures being set, making the communicating passage of giving vent to anger, and the air inlet communicating passage only can be to the piston cavity air inlet.Concrete, the pump case 20 of the present embodiment comprises that cylinder body 20a and airtight cover are contained in the bonnet 20b on cylinder body 20a, rubber piston 21 is arranged on cylinder body 20a, suction port 25 is arranged on bonnet 20b, concrete, suction port is arranged on the sidewall of bonnet 20b, simple in structure, is convenient to the assembling of the structure of pump case 20 inside.
The communicating passage of giving vent to anger of the present embodiment comprises the outlet chamber 26 be arranged in end cap 23, the corresponding connectivity structure that is provided with one by one between outlet chamber 26 and piston cavity, by setting out air cavity 26, be introduced into the interior current stabilization of outlet chamber 26 from the piston cavity effluent air, through air outlet 24, flow out again, the fluid stable of entraining air stream can be made out, noise can be effectively reduced.Concrete, connectivity structure comprises the communicated cavity 27 be arranged in end cap 23, be respectively equipped with connecting port between communicated cavity 27 and outlet chamber 26 and piston cavity, and the position of two connecting ports is staggered, the connecting port of setting corresponding to piston cavity is provided with the unidirectional diaphragm 28 of giving vent to anger, by two connecting ports 28 are crisscross arranged, can guarantee should have barrier with unidirectional 28 pairs, the diaphragm of giving vent to anger, and improves the working life of the unidirectional diaphragm 28 of giving vent to anger.
The air inlet communicating passage of the present embodiment comprises and the rubber piston 21 corresponding air inlet connecting port 29 be arranged on attachment face 22 one by one, between attachment face 22 and end cap 23, be provided with for being communicated with the gas-entered passageway 30 of air inlet connecting port 29 and piston cavity, air inlet connecting port 29 is provided with one-way air inlet diaphragm 31, one-way air inlet diaphragm 31 is arranged on the side of air inlet connecting port 29 near gas-entered passageway 30, the gas-entered passageway 30 of the present embodiment is and the corresponding connectivity slot be arranged on end cap 23 of air inlet connecting port 29 and piston cavity, the bottom land of connectivity slot has barrier effect to one-way air inlet diaphragm 31, can guarantee that one-way air inlet diaphragm 31 has enough working life.
Preferably, all rubber pistons 21 all are set to one and form diaphragm main body, arrange intercommunicating pore corresponding to air inlet connecting port 29 on diaphragm main body, and one-way air inlet diaphragm 31 is set to one and is positioned on intercommunicating pore with diaphragm main body, diaphragm main body is pressed abd fixed between the attachment face 22 and end cap 23 of pump case 20, after diaphragm main body is mounted location, one-way air inlet diaphragm 31 is mounted fixing, reduces assembly process.
Further, driving mechanism comprises motor 32, be arranged on roulette wheel 33 and the spiral arm 34 be connected with rubber piston 21 on motor 32 output shafts, between roulette wheel 33 and spiral arm 34, by connecting rod 35, be connected, and connecting rod 35 bias are arranged on roulette wheel 33, starting electrical machinery 32, rotation along with motor 32 output shafts, connecting rod 35 can change its true dip direction, and then make spiral arm 34 change true dip direction, under the driving effect of spiral arm 34, rubber piston 21 approaches the fore and aft motion of straight line, the air inlet of driven plunger chamber or exhaust, realize the function of pump, motor 32 often revolves and turns around, drive each rubber piston 21 and complete a work cycle.
The motor 32 of the present embodiment is motor with cup rotor, and the output shaft of motor with cup rotor is provided with cooling fan 36, and cooling fan 36 is positioned at the end of motor with cup rotor output shaft away from pump case 20, and cooling fan 36 is for cooling motor with cup rotor.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (10)
1. a quiet rotary-piston pump, comprise pump case, be arranged on reciprocating pump assembly in described pump case and for driving the driving mechanism of described reciprocating pump assembly; Described reciprocating pump assembly comprises the uniform rubber piston be arranged in described pump case of annular, on the attachment face of described pump case, with the described rubber piston corresponding mounting hole that is provided with one by one, is provided with the piston cavity of an end opening in described rubber piston, it is characterized in that:
Also comprise that airtight cover is contained in the end cap on described pump case attachment face, described end cap is provided with air outlet, between described air outlet and described piston cavity, is provided with the communicating passage of giving vent to anger;
Described pump case is provided with suction port, and is provided with the air inlet communicating passage communicated with described piston cavity between the attachment face of described pump case and described end cap;
Be equipped with one-way valve structures on described give vent to anger communicating passage and air inlet communicating passage.
2. quiet rotary-piston pump according to claim 1, it is characterized in that: described driving mechanism comprises motor, is arranged on roulette wheel and the spiral arm be connected with described rubber piston on described motor output shaft, between described roulette wheel and spiral arm, by connecting rod, be connected, and described connecting rod bias is arranged on described roulette wheel.
3. quiet rotary-piston pump according to claim 2, it is characterized in that: described motor is motor with cup rotor; The output shaft of described motor with cup rotor is provided with cooling fan, and described cooling fan is positioned at the end of described motor with cup rotor output shaft away from described pump case.
4. quiet rotary-piston pump according to claim 1, it is characterized in that: described pump case comprises that cylinder body and airtight cover are contained in the bonnet on described cylinder body, and described rubber piston is arranged on described cylinder body, and described suction port is arranged on described bonnet.
5. according to the described quiet rotary-piston pump of claim 1-4 any one, it is characterized in that: the described communicating passage of giving vent to anger comprises the outlet chamber be arranged in described end cap, the corresponding connectivity structure that is provided with one by one between described outlet chamber and described piston cavity.
6. quiet rotary-piston pump according to claim 5, it is characterized in that: described connectivity structure comprises the communicated cavity be arranged in described end cap, be respectively equipped with connecting port between described communicated cavity and described outlet chamber and piston cavity, and the position of two described connecting ports is staggered.
7. quiet rotary-piston pump according to claim 6, is characterized in that: with the connecting port of the corresponding setting of described piston cavity, be provided with the unidirectional diaphragm of giving vent to anger.
8. according to the described quiet rotary-piston pump of claim 1-4 any one, it is characterized in that: described air inlet communicating passage comprises and the described rubber piston corresponding air inlet connecting port be arranged on described attachment face one by one, between described attachment face and described end cap, be provided with for being communicated with the gas-entered passageway of described air inlet connecting port and piston cavity, described air inlet connecting port is provided with the one-way air inlet diaphragm.
9. quiet rotary-piston pump according to claim 8 is characterized in that: described gas-entered passageway for and described air inlet connecting port and the corresponding connectivity slot be arranged on described end cap of piston cavity.
10. quiet rotary-piston pump according to claim 8, it is characterized in that: all described rubber pistons all are set to one and form diaphragm main body, on described diaphragm main body, with the corresponding intercommunicating pore that arranges of described air inlet connecting port, and described one-way air inlet diaphragm and described diaphragm main body are set to one and are positioned on described intercommunicating pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480619.8U CN203384026U (en) | 2013-08-07 | 2013-08-07 | Mute rotation type piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480619.8U CN203384026U (en) | 2013-08-07 | 2013-08-07 | Mute rotation type piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384026U true CN203384026U (en) | 2014-01-08 |
Family
ID=49872529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320480619.8U Expired - Fee Related CN203384026U (en) | 2013-08-07 | 2013-08-07 | Mute rotation type piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384026U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424422A (en) * | 2015-11-20 | 2016-03-23 | 广东伟创科技开发有限公司 | Continuous flue gas monitoring and sampling device |
| CN107151896A (en) * | 2017-05-24 | 2017-09-12 | 无锡小天鹅通用电器有限公司 | Clothes treatment device and its air and liquid mixer |
| CN109139438A (en) * | 2018-10-13 | 2019-01-04 | 厦门科际精密器材有限公司 | A kind of diaphragm pump |
-
2013
- 2013-08-07 CN CN201320480619.8U patent/CN203384026U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424422A (en) * | 2015-11-20 | 2016-03-23 | 广东伟创科技开发有限公司 | Continuous flue gas monitoring and sampling device |
| CN107151896A (en) * | 2017-05-24 | 2017-09-12 | 无锡小天鹅通用电器有限公司 | Clothes treatment device and its air and liquid mixer |
| CN107151896B (en) * | 2017-05-24 | 2020-04-14 | 无锡小天鹅通用电器有限公司 | Clothes treatment equipment and gas-liquid mixer thereof |
| CN109139438A (en) * | 2018-10-13 | 2019-01-04 | 厦门科际精密器材有限公司 | A kind of diaphragm pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094776B (en) | Oppositely arranged swing piston type vacuum pump used for automobiles | |
| CN203384026U (en) | Mute rotation type piston pump | |
| KR20170003574U (en) | Self-air-intake piston and cylinder | |
| US9951764B2 (en) | High-efficiency double-intake air pump | |
| CN101100989B (en) | Diaphragm pump | |
| CN206035755U (en) | Vacuum pump for appearance is taked care of to negative pressure of piston structure | |
| CN214092213U (en) | Air pump with sound attenuation structure | |
| CN202673661U (en) | Portable diaphragm air pump | |
| CN201133340Y (en) | Electric diaphragm pump | |
| CN210623012U (en) | Swash plate type axial plunger pump with pressurizing auxiliary pump | |
| CN209025805U (en) | Conducive to the electric inflating pump of heat dissipation | |
| CN207033678U (en) | A kind of special-shaped seal ring for Vehicular electric diaphragm vavuum pump | |
| CN207033689U (en) | A kind of bonnet for Vehicular electric diaphragm vavuum pump | |
| CN202789384U (en) | Hand-operated air pump | |
| CN211314515U (en) | Electronic diaphragm vacuum pump for single-crank vehicle | |
| CN204041385U (en) | The all compound two-purpose pumps of a kind of air chamber conversion | |
| CN203560066U (en) | Liquid rotating pump | |
| CN212774669U (en) | Air-water dual-purpose pump | |
| CN203098224U (en) | Direct-current air pump for automobile seat | |
| CN207033698U (en) | A kind of Vehicular electric diaphragm vavuum pump | |
| CN201739135U (en) | One-piece cylinder for miniature air pump | |
| CN211549947U (en) | Novel piston pump | |
| CN103629091B (en) | A kind of liquid rotary pump | |
| CN218542530U (en) | Vacuum pump structure for breast pump | |
| CN218031618U (en) | Novel take admission valve of tonifying qi function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20180807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |