CN212429355U - Double-pipe parallel vacuum pump - Google Patents
Double-pipe parallel vacuum pump Download PDFInfo
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- CN212429355U CN212429355U CN202020961699.9U CN202020961699U CN212429355U CN 212429355 U CN212429355 U CN 212429355U CN 202020961699 U CN202020961699 U CN 202020961699U CN 212429355 U CN212429355 U CN 212429355U
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Abstract
The utility model provides a double-tube parallel vacuum pump, which comprises a cuboid valve plate, wherein one end surface of the valve plate is provided with a first interface, a second interface and a third interface, the first interface is a detection port, and the second interface and the third interface are respectively an air exhaust port and an air supply port; the valve plate upper surface is close to the one end of first interface and has set gradually first solenoid valve, second solenoid valve, third solenoid valve and relief valve, the other end of valve plate upper surface is provided with the gas vent. The utility model provides a vacuum pump of parallelly connected structure is constituteed by two sets of nozzles, expansion pipe, the utility model discloses can reduce the evacuation time, increase the reliability of vacuum pump.
Description
Technical Field
The utility model belongs to the vacuum pump field, concretely relates to double-barrelled vacuum pump that connects in parallel.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The traditional vacuum pump for the train only has a group of nozzles and expansion pipes to form a single venturi tube, the vacuumizing time is long, the vacuumizing capacity of the vacuum pump is reduced or even fails after the air channel is plugged, and the reliability is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem, provided a double-barrelled parallelly connected vacuum pump, the utility model provides a constitute the vacuum pump of parallelly connected structure by two sets of nozzles, expansion pipe, the utility model discloses can reduce the evacuation time, increase the reliability of vacuum pump.
According to some embodiments, the utility model discloses the scheme provides a double-barrelled parallelly connected vacuum pump, adopts following technical scheme:
a double-pipe parallel vacuum pump comprises a cuboid valve plate, wherein one end face of the valve plate is provided with a first interface, a second interface and a third interface, the first interface is a detection port, and the second interface and the third interface are an air exhaust port and an air supply port respectively; the valve plate upper surface is close to the one end of first interface and has set gradually first solenoid valve, second solenoid valve, third solenoid valve and relief valve, the other end of valve plate upper surface is provided with the gas vent.
Furthermore, a first channel, a second channel and a third channel which penetrate through the valve plate and are parallel to each other are sequentially arranged in the valve plate, the first channel is a detection channel, and the second channel and the third channel are venturi tube installation channels; the first channel is perpendicular to the end face provided with the first interface; a fourth channel is arranged at one end, close to the first interface, in the valve plate, a fifth channel is arranged at the other end of the valve plate, the fourth channel and the fifth channel are respectively communicated with the second channel and the third channel, and outlets are formed in the fourth channel and the fifth channel;
furthermore, a flushing exhaust hole and an air supply hole are further formed in one end, close to the first interface, of the valve plate, the air supply hole is close to the second channel, and the flushing exhaust hole is formed in the middle of the second channel and the third channel; and a piston control hole is further formed in one end, far away from the first interface, of the valve plate, and the piston control hole is close to and communicated with the second channel.
Furthermore, the first interface, the second interface and the third interface are respectively communicated with the first channel, the flushing exhaust hole and the air supply hole through quick insertion assembly blocks.
Furthermore, a first connecting hole and a second connecting hole which are communicated with the second channel and the third channel are respectively arranged in the middle of the second channel and the third channel, and the first connecting hole and the second connecting hole are communicated and are perpendicular to the lower surface of the valve plate.
Furthermore, one end of the second channel and one end of the third channel, which are close to the fifth channel, are respectively provided with a first exhaust hole and a second exhaust hole which are communicated with the second channel, and the first exhaust hole and the second exhaust hole are communicated and are perpendicular to the upper surface of the valve plate.
Furthermore, an exhaust air path block is arranged above the first exhaust hole and the second exhaust hole, and an exhaust port is arranged above the exhaust air path block.
Furthermore, a plug, a piston and a spring are arranged at one end of the third channel and the fourth channel, which is close to the exhaust hole, from outside to inside, and the spring is sleeved on the piston.
Furthermore, an expansion pipe and a nozzle are arranged in the third channel and the fourth channel, the expansion pipe is connected with the piston, and the nozzle is arranged opposite to the expansion pipe.
Further, the upper surface of the valve plate is provided with a safety valve mounting hole communicated with the first channel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the Venturi tube composed of two groups of nozzles and the expansion pipe, which can shorten the vacuum-pumping time;
2. the utility model discloses a venturi that two sets of nozzles and expansion pipe are constituteed, after the gas circuit embolism, the vacuum pump evacuation ability falls and improves, has increased the reliability of vacuum pump.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic sectional structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the valve plate of the present invention;
fig. 4 is a schematic view of the working connection of the present invention.
The automatic air-conditioning system comprises a valve plate 1, a valve plate 2, an exhaust air path block 3, a quick-insertion container block 4, a first electromagnetic valve 5, a second electromagnetic valve 6, a third electromagnetic valve 7, a safety valve 8, an exhaust port 9, a third interface 10, a second interface 11, a first interface 12, a plug 13, a piston 14, a spring 15, an expansion pipe 16, a nozzle 17, a third channel 18, a second channel 19, an air supply hole 20, a fourth channel 21, a fifth channel 22, a piston control hole 23, a first channel 24, a second exhaust hole 25, a first exhaust hole 26, a second connecting hole 27, a first connecting hole 28, a safety valve mounting hole 29, an exhaust hole 30, a vacuum pump 31, a flushing toilet bowl 32, a sewage tank 33 and a middle tank.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
As shown in fig. 1, a double-tube parallel vacuum pump is provided, wherein a first connector 11, a second connector 10 and a third connector 9 are sequentially arranged on the left side of the vacuum pump from top to bottom, and a first electromagnetic valve 4, a second electromagnetic valve 5, a third electromagnetic valve 6, a safety valve 7 and an exhaust port 8 are sequentially arranged on the upper surface from left to right.
As shown in fig. 3, a third channel 17 and a second channel 18 penetrating through the valve plate are arranged in the valve plate 1, a first channel 23 penetrating through the valve plate is arranged above the second channel 18, a fourth channel 20 is arranged at the left end of the valve plate 1, and the third channel 17 and the second channel 18 are communicated for supplying air; a fifth channel 21 is arranged at the right end of the valve plate 1 and is used for communicating the third channel 17 with the second channel 18; an air supply hole 19 and a flushing exhaust hole 29 are formed in the left side of the valve plate 1 and between the third channel 17 and the second channel 18; a piston control hole 22 is formed in the right side of the valve plate 1 and between the third channel 17 and the second channel 18; the bottom of the valve plate 1 is provided with a second connecting hole 26 and a first connecting hole 27 which are respectively connected with the third channel 17 and the second channel 18; the upper surface of the valve plate 1 is provided with a second exhaust hole 24 and a first exhaust hole 25 which are respectively connected with the third channel 17 and the second channel 18; the upper surface of the valve plate 1 is provided with a relief valve mounting hole 28 connected to the first passage 23. Two groups of pistons 13 are respectively arranged on the right side of the exhaust hole in the third channel 17 and the second channel 18; two groups of nozzles 16 and expansion pipes 15 are respectively arranged at the left side and the right side of the connecting hole in the third channel 17 and the second channel 18; the second exhaust hole 24 with exhaust gas block 2 is installed to first exhaust hole 25 top, exhaust gas block 2 top sets up gas vent 8. Valve plate 1 left side is equipped with inserts collection dress piece 3 soon, insert collection dress piece 3 soon respectively will first interface 11 second interface 10 with third interface 9 respectively with first passageway 23 flush water exhaust hole 29 with air feed hole 19 links to each other. The upper surface of the valve plate 1 is provided with an exhaust air path block 2, and the exhaust air path block 2 is used for communicating the second exhaust hole 24 and the first exhaust hole 25 with the exhaust port 8. A relief valve 7 is provided to the right of the third solenoid valve 6, and the relief valve 7 communicates with the second passage 18 and the first passage 23.
A group of expansion pipes 15 and nozzles 16 are respectively arranged in the third channel 17 and the second channel 18, the expansion pipes 15 and the nozzles 16 can form a venturi tube, so that negative pressure is formed in the second connecting holes 26, and equipment connected with the second connecting holes 26 is vacuumized. A relief valve 7 is arranged on the top surface of the valve plate 1, and the relief valve 7 is communicated with the second channel 18 and the first channel 23; the safety valve 7 has the function of pressure relief, and prevents other parts from being damaged after the pipeline is blocked or parts of the parts are damaged.
The specific working process of the double-tube parallel vacuum pump in the embodiment is as follows:
the third interface 9 is connected with an air source, the second interface 10 is connected with a toilet flushing device, the second connecting hole 26 and the first connecting hole 27 are respectively connected with a middle box 33, the first electromagnetic valve 4 controls the connection and disconnection of the second interface 10, the second electromagnetic valve 5 controls the connection and disconnection of the air supply of the third channel 17 and the second channel 18, the third electromagnetic valve 6 controls the connection and disconnection of the piston control hole 22, and the inlets of the electromagnetic valves are communicated with the air supply hole 19. Normally, the first electromagnetic valve 4 and the second electromagnetic valve 5 are in a normally closed state, and the third electromagnetic valve 6 is in a normally open state.
When the first electromagnetic valve 4 works and is in an open state, the air source enters the flushing exhaust hole 29 from the third interface 9 through the first electromagnetic valve 4, and then is connected with the toilet flushing device through the second interface 10 to pressurize the toilet flushing device.
When the third electromagnetic valve 6 is energized to work, the third port 9 is disconnected from the piston control hole 22, residual compressed air on one side of the piston 13 in the third channel 17 and the second channel 18 is exhausted through the third electromagnetic valve 6 through the piston control hole 22, the piston 13 in the third channel 17 and the second channel 18 is bounced open under the action of the spring 14, and the expansion pipe 15 in the third channel 17 and the second channel 18 is respectively communicated with the second exhaust hole 26 and the first exhaust hole 27.
When the third electromagnetic valve 6 is not energized to work, compressed air enters the second channel 18 connected with the piston control hole 22 from the third interface 9 through the third electromagnetic valve 6 and enters the third channel 17 through the fifth channel 21, under the action of the compressed air, the piston 13 in the third channel 17 and the second channel 18 compresses the spring 14 to move and block the tail part of the expansion pipe 15, and the connection between the expansion pipe 15 and the second exhaust hole 26 as well as the first exhaust hole 27 is disconnected.
When the second solenoid valve 5 and the third solenoid valve 6 are energized simultaneously, the air source enters the fourth channel 20 from the third port 9 through the second solenoid valve 5, enters the left ends of the third channel 17 and the second channel 18 through the fourth channel 20, circulates from left to right, and the compressed air enters the extension pipe 15 through the nozzle 16 after being accelerated (the head of the nozzle 16 is thinned, the flow rate of the compressed air is accelerated), so that negative pressure is formed at the middle box 33, the second connecting hole 26 and the first connecting hole 27, respectively, and the middle box 33 communicated with the second connecting hole 26 and the first connecting hole 27 is vacuumized.
When the second electromagnetic valve 5 is powered on to work and the third electromagnetic valve 6 is not powered on to work, the air source enters the fourth channel 20 from the third interface 9 through the second electromagnetic valve 5, enters the left ends of the third channel 17 and the second channel 18 through the fourth channel 20 respectively, circulates from left to right, enters the middle box 33 through the second connecting hole 26 and the first connecting hole 27 respectively, and forms positive pressure in the middle box 33.
The second electromagnetic valve 5 and the third electromagnetic valve 6 are electrified to work simultaneously, two groups of venturi tubes consisting of the expansion pipe 15 and the nozzle 16 in the vacuum pump simultaneously vacuumize the middle box 33, and the vacuuming time is shortened by half. After the waste such as the feces in the toilet bowl 31 is sucked into the intermediate tank 33 by the vacuum, the second solenoid valve 5 is energized, the third solenoid valve 6 is not energized, the vacuum pump 30 pressurizes the intermediate tank 33 to make it positive pressure, and the waste in the intermediate phase 33 is discharged to the waste tank 32.
The utility model discloses the vacuum pump comprises two sets of nozzles 16, expansion pipe 15 and connects the vacuum pump of structure in parallel, produces the embolism in a set of expansion pipe 15, and when the gas circuit was not smooth, another group still can normally work by the venturi that nozzle 16, expansion pipe 15 are constituteed, improves the reliability of vacuum pump greatly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. A double-pipe parallel vacuum pump is characterized by comprising a cuboid valve plate, wherein one end face of the valve plate is provided with a first connector, a second connector and a third connector; the valve plate upper surface is close to the one end of first interface and has set gradually first solenoid valve, second solenoid valve, third solenoid valve and relief valve, the other end of valve plate upper surface is provided with the gas vent.
2. A double tube parallel vacuum pump according to claim 1, wherein the valve plate is internally provided with a first channel, a second channel and a third channel which penetrate through the valve plate and are parallel to each other in sequence; the first channel is perpendicular to the end face provided with the first interface; the valve plate is characterized in that a fourth channel perpendicular to the second channel is arranged at one end, close to the first interface, of the valve plate, a fifth channel perpendicular to the second channel is arranged at the other end of the valve plate, the fourth channel and the fifth channel are communicated with the second channel and the third channel respectively, and outlets are formed in the fourth channel and the fifth channel.
3. A double-tube parallel vacuum pump according to claim 2, wherein a flush air outlet hole and an air supply hole are further provided in the valve plate near the first port, the air supply hole is near the second channel, and the flush air outlet hole is provided at a position intermediate the second channel and the third channel; and a piston control hole is further formed in one end, far away from the first interface, of the valve plate, and the piston control hole is close to and communicated with the second channel.
4. A double-tube parallel vacuum pump according to claim 3, wherein the first port, the second port and the third port are respectively communicated with the first passage, the flushing exhaust hole and the air supply hole through quick-insertion assembling blocks.
5. A double-tube parallel vacuum pump according to claim 2, wherein a first connection hole and a second connection hole which are communicated with the second channel and the third channel are respectively formed in the middle portions of the second channel and the third channel, and the first connection hole and the second connection hole are communicated and are perpendicular to the lower surface of the valve plate.
6. A double-tube parallel vacuum pump according to claim 2, wherein one end of the second channel and the third channel near the fifth channel are respectively provided with a first exhaust hole and a second exhaust hole communicated with the fifth channel, and the first exhaust hole and the second exhaust hole are communicated and vertical to the upper surface of the valve plate.
7. A double tube parallel vacuum pump according to claim 6, wherein an exhaust gas path block is provided above the first exhaust hole and the second exhaust hole, and an exhaust port is provided above the exhaust gas path block.
8. A double tube parallel vacuum pump according to claim 2, wherein the third and fourth channels are provided with a plug, a piston and a spring from outside to inside at the end close to the exhaust hole, and the spring is sleeved on the piston.
9. A dual tube parallel vacuum pump according to claim 8, wherein an expansion tube and a nozzle are further provided in the third and fourth channels, the expansion tube being connected to the piston, the nozzle being disposed opposite the expansion tube.
10. A double tube parallel vacuum pump according to claim 4, wherein the valve plate is provided at an upper surface thereof with a relief valve mounting hole communicating with the first passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961699.9U CN212429355U (en) | 2020-05-29 | 2020-05-29 | Double-pipe parallel vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961699.9U CN212429355U (en) | 2020-05-29 | 2020-05-29 | Double-pipe parallel vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212429355U true CN212429355U (en) | 2021-01-29 |
Family
ID=74270386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020961699.9U Expired - Fee Related CN212429355U (en) | 2020-05-29 | 2020-05-29 | Double-pipe parallel vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212429355U (en) |
-
2020
- 2020-05-29 CN CN202020961699.9U patent/CN212429355U/en not_active Expired - Fee Related
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| 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: 20210129 Termination date: 20210529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |