CN107642478A - A kind of cylinder body guide miniature booster-type electric air pump - Google Patents
A kind of cylinder body guide miniature booster-type electric air pump Download PDFInfo
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- CN107642478A CN107642478A CN201610582819.2A CN201610582819A CN107642478A CN 107642478 A CN107642478 A CN 107642478A CN 201610582819 A CN201610582819 A CN 201610582819A CN 107642478 A CN107642478 A CN 107642478A
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Abstract
A kind of cylinder body guide miniature booster-type electric air pump of the present invention, including pump housing seat, eccentric shaft, connecting rod, one-level cylinder body, two level cylinder body, piston rod, wherein two level cylinder body small volume is divided into pipeline connection between two cylinder bodies and two cylinder bodies in the volume of one-level cylinder body, a piston rod two ends.Electric air pump of the present invention can realize that two-stage is continuously pressurized output pressure gas by two-stage cylinder, coordinate between piston and two level cylinder body and be oriented to, improve the service life of air pump, gas piping, valve body etc. are built-in to be distributed in pedestal, it is compact-sized, overall miniaturized design and Automated condtrol are realized, is adapted as manometer inspection or the pneumatic supply of other pressure outputs.
Description
Technical field
The invention belongs to manometer inspection technology field, it is related to a kind of electric air pump, and in particular to one kind can produce
Raw pressed gas, the miniature booster-type electric air pump for manometer.
Background technology
It is necessary to have certain pressure during Portable pressure calibrating instrument device calibrating gas pressure instrument is used
Compressed air examines and determine manometer as medium.Mainly there is two ways in the compressed air source of traditional approach：Just
Take hand air pump pressurization or carry gas cylinder.Hand air pump is mainly used in Manual pressure instrument calibration device,
In order to complete normal verification process, it is enough that operating personnel need continuous operation hand air pump to ensure that verification process has
Compressed air produces, and this is a heavy physical work, has had a strong impact on the efficiency of calibration operation.With industry
The raising of automaticity, there is gas pressure instrument automatic calibrator, the use of gas cylinder is calibrating installation
Compressed air, but gas cylinder finite capacity are provided, it is bulky, it is not easy to carry, the inspection to site pressure instrument
Fixed work brings inconvenience, can not more meet the needs of industry spot automatic Verification manometer.Subsequent electricity consumption
Pump of taking offence makes a kind of trend that presses to, but existing electric air pump designs for industrial big flow, volume be present greatly, again
The shortcomings of amount is big, power consumption is big, startability difference with pressure, it is impossible to meet pressure calibration industry to low discharge needs, sternly
Portable or hand-held manometer automatic calibrator is govern again to automation, miniaturization, Highgrade integration to develop
Direction.
It is therefore desirable to design one kind to make the increased Miniature electric air pump of pressure, automated, minimized with satisfaction,
The demand of the manometer automatic calibrator of Highgrade integration.
The content of the invention
The invention aims to solve the above problems, there is provided a kind of compact-sized, small volume, automaticity
Cylinder body guide miniature booster-type electric air pump that is high, can increasing gas pressure and increase the service life.
The above-mentioned purpose of the present invention is realized by following technical scheme：
A kind of cylinder body guide miniature booster-type electric air pump, including pump housing seat, the motor cabinet and electricity that are connected with pump housing seat
Machine, by the eccentric shaft of motor driven, the connecting rod interlocked with eccentric shaft, one-level cylinder body, two level cylinder body, be located in one
Piston rod synchronization-moving with connecting rod and located at the multiple unidirectional of two cylinder body outer ends among level cylinder body and two level cylinder body
Valve, wherein：
The both ends formation one-level cylinder body (081) and two level cylinder body support base (082) of the pump housing seat (08), two
Level cylinder body (06) be assemblied on the inside of two level cylinder body support base (082) and with one-level cylinder body (081) coaxial line；Two
Level cylinder body (06) volume is less than the volume of first-stage cylinder body (081), and the one-level blast pipe of one-level cylinder body (081)
Road (17) connects with the two level suction line (20) of two level cylinder body (06)；
Piston rod (10) both ends set piston one-level end (101) and piston two level end (102), piston one-level end with
One-level cylinder body (081) coordinates, and piston two level end is stretched into two level cylinder body (06) to be coordinated with two level cylinder body.
Cylinder body guide miniature booster-type electric air pump as described above, the two level cylinder body (06) is hollow cylinder, interior
End inner surface is provided with First terrace (062), and the second combination seal (07) is assemblied in the First terrace (062)
Place, second combination seal (07) is supported in the side of pump housing seat (08).
Cylinder body guide miniature booster-type electric air pump as described above, the First terrace (062) cause described two
The inner surface of level cylinder body (06) forms the first order through hole (061) and second level through hole (066) to communicate with each other,
The diameter of first order through hole (061) is more than the diameter of second level through hole (066), first order through hole (061)
The common shape in piston two level end (102) outer surface of inner surface, First terrace (062) and piston rod (10)
Into an annular groove, the second combination seal (07) is placed in the annular groove.The First terrace perpendicular to
The axial direction of two level cylinder body (06).
Cylinder body guide miniature booster-type electric air pump as described above, pump housing seat (08) are connected with two level cylinder body (06)
Place is provided with a pair of mutually corresponding protuberances (083) and is used to keep out the second combination seal (07).
Cylinder body guide miniature booster-type electric air pump as described above, the outer end outer surface of the two level cylinder body (06) is extremely
Second step face (063) is provided with less, a sealing ring (28) is connected to the second step face (063), motor cabinet (04)
Side support the sealing ring (28).
Or the outer end outer surface of the two level cylinder body (06) is provided with the 3rd step surface (064) and the 4th step
Face (065) two-stage step, sealing ring (28) are connected to the 3rd step surface (064), motor cabinet (04)
Support the sealing ring (28) and the 4th step surface (065) in side.3rd step surface (064) is apart from secondary cylinder
Body (06) central shaft distance be less than the 4th step surface (065) apart from the central shaft of two level cylinder body (06) away from
From.
Cylinder body guide miniature booster-type electric air pump as described above, the face area at piston one-level end (101) are more than
The face area at piston two level end (102), the axial cross section area of corresponding one-level cylinder body (081) are more than two
The axial cross section area of level cylinder body (06).
One-level cylinder body (081) outer end is sequentially provided with cylinder body pad (12), the one-level breather cheek valve (15) of reverse-fitting
With one-level exhaust check valve (16) and end cap (13), one-level breather cheek valve (15) and one-level exhaust are unidirectional
Valve (16) connects with one-level cylinder body (081) inner chamber, one-level suction line (14) connection on end cap (13)
Ambient atmos are simultaneously connected with one-level breather cheek valve (15), the one-level gas exhaust piping (17) on end cap (13)
It is connected with one-level exhaust check valve (16), and pass through a transition pipe (19) and two level cylinder body (06) two
Level suction line (20) connection.
Two level cylinder body (06) outer end is arranged with two level suction line (20) and secondary exhaust pipeline (22), two level
Two level breather cheek valve (21) for controlling air inlet, one-level cylinder body (081) are installed before suction line (20) entrance
One-level gas exhaust piping (17) pass through a transition pipe (19) and the two level breather cheek valve (21) and two level air-breathing
Pipeline (20) connects；Secondary exhaust pipeline (22) outlet installation is used for the secondary exhaust check valve (23) for controlling outlet.
Cylinder body guide miniature booster-type electric air pump as described above, a pressing plate (18) is also set, lid crimping is together in one-level
End cap (13), pump housing seat (08) and motor cabinet (02) upper end of cylinder body (081) and by two level cylinder body (06)
Two level breather cheek valve (21) and secondary exhaust check valve (23) compress；The transition pipe (19) is built-in
In pressing plate (18).
Cylinder body guide miniature booster-type electric air pump as described above, eccentric shaft (04) are provided with and coaxial recessed of motor shaft
Groove and the driving handle of reverse disalignment (041), the motor shaft of motor (01) are extend into the groove, driving
Handle (041) connects one end of horizontally disposed connecting rod (05)；Connecting rod (05) other end passes through vertical setting
Pin (09) connects the piston rod (10) for the horizontal direction for having distance with it.
Cylinder body guide miniature booster-type electric air pump as described above, the check valve include check valve body (25), with
The valve end cap (27) of check valve body threaded connection, the nonreturn valve core (24) that is arranged on inside check valve body and it is located at
Spring (26) between nonreturn valve core and valve end cap, wherein, check valve body (25) is hollow cylinder, and upside is set
Have for inputting the air admission hole of gas (29), lower end opening end is tightly connected valve end cap (27), and valve end cap is provided with out
Stomata (30)；Coaxially left in the inner chamber that check valve body and valve end cap are formed and nonreturn valve core (24) be installed with gap,
Nonreturn valve core be provided with outside diameter it is different protrude above portion (241) and lower protuberance (242), protrude above portion (241)
Valve seals (31) are installed between check valve body (25) inwall, lower protuberance (242), outer sheath is shot
Spring (26).Upper and lower protuberance outside diameter is different, can prevent the anti-loaded direction of check valve.
Above-mentioned technical proposal is used, the solution have the advantages that：
First and second grade uses motionless sealing means between cylinder body and piston rod, improve the service life of seal；
Secondth, coordinate between piston and two level cylinder body and be oriented to, when the low-pressure piston forward compression gas that sectional area is larger
When, coordinate the high pressure cylinder of assembling and high pressure piston to turn into main axle, the guiding mechanism of hole cooperation, transported for low-pressure piston
Dynamic opposite direction forced guiding, reduce the guiding abrasion of combination sealing；And when the less piston compression of sectional area is with pressure
During gas, guide function is realized by piston and high pressure cylinder completely, the guide function of seal member is reduced, carries significantly
The high service life of air pump and the abrasion for reducing seal member；And
3rd, the one-level cylinder body of low pressure large volume connects with the two level cylinder body gas circuit of high pressure small size, and gas is entering
Realize during two level cylinder body and be once pressurized, secondary booster can be realized after piston compression pressurization gas, gas can produce
Output pressure gas after two-stage is continuously pressurized；
4th, the present invention is compact-sized, and gas piping, valve body etc. are built-in to be distributed in pedestal, and electrodynamic pump is overall
Miniaturized design, motor, eccentric shaft, connecting rod, piston lever linkage, it is easy to accomplish Automated condtrol.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the embodiment of the cylinder body guide miniature booster-type electric air pump of the present invention；
Fig. 2 is that electric air pump piston rod of the present invention moves right working state schematic representation (in compression on the right side of piston rod
State；In the operating position of suction condition on the left of piston rod)；
Fig. 3 is that electric air pump piston rod of the present invention (is in compression to left movement working state schematic representation on the left of piston rod
State；In the operating position of suction condition on the right side of piston rod)；
Fig. 4 is the cross-sectional view of two kinds of different structures of two level cylinder body；
Fig. 5 is the cross-sectional view of one-way valve structures.
Reference is expressed as in figure：
01：Motor, 02：Motor cabinet；
03：Bearing pin, 04：Eccentric shaft, driving handle 041,05：Connecting rod；
06：Two level cylinder body, 061：First order through hole, 062：First terrace, 063：Second step face, 064：
3rd step surface, 065：4th step surface, 066：Second level through hole；
07：Second combination seal；
08：Pump housing seat, 081：One-level cylinder body, 082：Two level cylinder body support base, 083：Protuberance；
09：Pin, 10：Piston rod, 101：Piston one-level end, 102：Piston two level end, 11：First combination
Seal, 12：Cylinder body pad；
13：End cap, 14：One-level suction line, 15：One-level breather cheek valve, 16：One-level exhaust check valve,
17：One-level gas exhaust piping；
18：Pressing plate, 19：Transition pipe；
20：Two level suction line, 21：Two level breather cheek valve, 22：Secondary exhaust pipeline, 23：Secondary exhaust
Check valve；
24：Nonreturn valve core, 241：Protrude above portion, 242：Lower protuberance, 25：Check valve body, 26：Spring,
27：Valve end cap, 29：Air admission hole, 30：Venthole, 31：Valve seals.
28：Sealing ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the cylinder body guide miniature supercharging electric air pump of the present invention is carried out in detail
Explanation.
Cylinder body guide miniature booster-type electric air pump concrete structure of the present invention referring to Fig. 1 to Fig. 3, including motor 01,
Eccentric shaft 04, connecting rod 05, two level cylinder body 06 and one-level cylinder body 081, piston rod 10, pin 09, pressing plate 18,
Pump housing seat 08, multiple check valves and sealing ring and multiple pipelines, wherein：
Pump housing seat 08 is the connection member of the electric air pump, and motor 01 is fixed on the pump housing by the way that motor cabinet 02 is vertical
08 side of seat, eccentric shaft 04 is fixed on the bottom of motor cabinet 02 by bearing pin 03, and motor shaft extend into eccentric shaft
In 04 vertical groove, positioned by bearing pin 03.
The lower end of eccentric shaft 04 is provided with the driving handle 041 for extending downwardly disalignment, and driving handle 041 is set through level
One mounting hole of the one end of connecting rod 05 put, the end of driving handle 041 are stretched out connecting rod 05 and fixed with nut；Hang down
Another mounting hole being provided with to the pin 09 of setting through the other end of connecting rod 05, level is connected to by connecting rod 05
On the piston rod 10 in direction, connecting rod 05 and piston rod 10 have a distance, pin 09 stretch out the end of connecting rod 05 with
And the end of stretching piston rod 10 is fixed with nut respectively.
Piston rod 10 includes bar portion and is arranged on the piston one-level end 101 and piston two level end 102 at bar portion both ends,
Piston one-level end 101 and piston two level end 102 are respectively protruding into one-level cylinder body 081 and two level cylinder body 06.The pump housing
The both ends of seat 08 form one-level cylinder body 081 and two level cylinder body support base 082, i.e. one-level cylinder body 081 and secondary cylinder
Body support base 082 is integrally formed.One-level cylinder body 081 is used to accommodate low-pressure gas, is moved positioned at connecting rod 05 remote
End (" left side " shown in figure is the distal end that connecting rod 05 moves), piston one-level end 101 is assemblied in one-level cylinder body 081
Inner side；Two level cylinder body support base 082 is used to assemble two level cylinder body 06, and two level cylinder body 06 is used to accommodate gases at high pressure,
Piston two level end 102 is assemblied in the inner side of two level cylinder body 06.The piston two level end 102 is cylinder, in work
During the side-to-side movement of stopper rod 10, the inside of two level cylinder body 06 and two level cylinder body are stretched into the piston two level end 102
06 cooperatively forms sealing.And during the side-to-side movement of piston rod 10, the bar portion of piston rod 10 is not extend into
Enter the inside of the two level cylinder body 06.Piston rod 10 is by being arranged on first combination sealing at piston one-level end 101
Part 11 forms sealing in one-level cylinder body 081, and the first combination seal 11 is hollow Bowl seal ring liner elasticity
Seal bracing ring；Piston rod 10 by be arranged between two level cylinder body 06 and the outer surface of piston rod 10 second
Combination seal 07 forms sealing in two level cylinder body 06, and the second combination seal 07 is firm by the high abrasion of routine
Property circle and overcoat elastic seal ring are applied in combination.Motor 01 drives eccentric shaft 04 to rotate, and passes through driving handle 041
Drivening rod 05 swing (connecting rod 05 swing to the left terminal for its relative to eccentric shaft 04 motion distal end,
Motion near-end of the terminal for it relative to eccentric shaft 04 is swung to the right), and then piston rod 10 is driven by pin 09
Moved back and forth in one-level cylinder body 081 and two level cylinder body 06 along axis or so.The piston one-level end of piston rod 10
101 face area is more than the axial direction of the face area, correspondingly one-level cylinder body 081 at the piston two level end 102
Cross-sectional area is also greater than the axial cross section area of two level cylinder body 06, the so mistake in the side-to-side movement of piston rod 10
Cheng Zhong, the stroke of piston rod 10 is identical, then after the gas of one-level cylinder body 081 is compressed by check valve control into
Volume-diminished is further compressed after entering two level cylinder body 06, realizes the once supercharging of gas.
The outer end of one-level cylinder body 081 is sequentially provided with cylinder body pad 12, check valve (including one-level breather cheek valve 15 and one
Level exhaust check valve 16) and end cap 13.Two passages, one-level breather cheek valve are provided with cylinder body pad 12
15 and one-level exhaust check valve 16 be connected by above-mentioned two passage with the inside of one-level cylinder body 06.End cap 13
On be provided with two pipelines, respectively one-level suction line 14 and one-level gas exhaust piping 17.One-level suction line 14
It is connected for connecting outside air or compressed air line, and with one-level breather cheek valve 15.One-level blast pipe
Road 17 is connected with one-level exhaust check valve 16, for the gas in one-level cylinder body 081 to be discharged.
The outer end of two level cylinder body 06 is connected with motor cabinet 02, and two and two level cylinder body 06 are offered inside motor cabinet 02
The pipeline (including two level suction line 20 and secondary exhaust pipeline 22) that inside is connected, two level suction line 20
One breather check valve (two level breather cheek valve 21) is installed before entrance and is used for the one-way air inlet into two level cylinder body 06.
The outlet of two level row pipeline 22 is provided with another outgassing nonreturn valve (secondary exhaust check valve 23) and is used for two level cylinder body
Gas unidirectional is discharged in 06.One pressing plate 18 lid is crimped together in end cap 13, pump housing seat 08 and the upper end of motor cabinet 02,
Two level breather cheek valve 21 and secondary exhaust check valve 23 are compressed simultaneously；Pressing plate 18 offers built-in transition
Pipeline 19, the one end of transition pipe 19 are connected with one-level gas exhaust piping 17, and other end connection two level air-breathing is unidirectional
Valve 21.Compact-sized to make, pressing plate 18, pump housing seat 08 and motor cabinet 02 can be designed but are connected as a single entity with split
Form a pedestal, transition pipe 19 and other associated components for example eccentric shaft 04, connecting rod 05, two level cylinder body 06,
One-level cylinder body 081, each check valve and each gas circuit pipeline can be built in the pedestal, realize integrated design, more
It is easy to be miniaturized, lifts the associative perception of this electric air pump and the overall convenience for using, changing.
In the present invention, piston two level end 102 of the two level cylinder body 06 not only with piston rod 10 cooperatively forms confined air
Between to accommodate gases at high pressure, two level cylinder body 06, which with one-level cylinder body 081 aligns same central shaft and set, can also be used as piston
The guider of bar 10.Two level cylinder body 06 is located at the end of the two level side of piston rod 10, shape as guider
(scheme forward to form, i.e. (low pressure (LP) cylinder) mesolow of one-level cylinder body 081 piston (piston one-level end 101) into anti-ballistic
Before a left side is in 1) compressed gas when, coordinate the two level cylinder body 06 (high pressure cylinder) and high pressure piston (piston two of assembling
Level end 102) turn into main axle, the guiding mechanism that hole coordinates, move opposite direction for low-pressure piston in structure and force to lead
To.Figure (a) and figure (b) in structural reference Fig. 4, Fig. 4 of two level cylinder body 06 are respectively two level cylinder body 06
Two kinds of different structure forms.
As shown in the figure (a) in Fig. 4, two level cylinder body 06 is hollow cylinder, and interior bone is provided with two-stage, respectively
For first order through hole 061 and second level through hole 066, two-stage through hole communicates with each other and the diameter of first order through hole 061
More than the diameter of second level through hole 066, first order through hole 061 has First terrace 062, First terrace 062
Perpendicular to the axial direction of two level cylinder body 06 and connect the inner surface of first order through hole 061 and second level through hole 066.The
The internal diameter of secondary through holes 066 matches to form gap cooperation with the external diameter of piston two level end 102 of piston rod 10, and first
The internal diameter of level through hole 061 is more than the external diameter at the piston two level end 102 of piston rod 10, thus, first order through hole 061
Inner surface, the outer surface of piston two level end 102 of First terrace 062 and piston rod 10 be collectively forming a ring
Connected in star, the second combination seal 07 is placed in the annular groove so that two level cylinder body 06 and piston rod 10
Sealing is formed between piston two level end 102, prevents the gas inside two level cylinder body 06 at First terrace 062
Leakage；Pump housing seat 08 and the junction of two level cylinder body 06, which are provided with a pair, mutually corresponding can close the annular groove opening
Protuberance 083 be used for keep out the second combination seal 07.The outer surface of two level cylinder body 06 is provided with an outer step,
The outer step is arranged on two level cylinder body 06 adjacent to one end of motor cabinet 02, and the outer step makes the outer of two level cylinder body 06
Surface forms external diameter two parts of different sizes.The outer steps face of outer step is second step face 063 perpendicular to two
The axial direction of level cylinder body 06.Second step face 063 connects the different two-part outer surface of external diameter of two level cylinder body 06,
The less outer surface of the external diameter of two level cylinder body 06 is provided with a sealing ring 28, sealing ring 28 abuts second
Terrace 063, motor cabinet 02 are arranged on the outside of sealing ring 28, and motor cabinet 02 compresses sealing ring 28 and then close
Inside front cover level cylinder body 06 abuts the side of motor cabinet 02 so that the gases at high pressure inside two level cylinder body 06 can only pass through
Secondary exhaust check valve 23 is discharged.
Figure (b) in reference picture 4, is another structure type of two level cylinder body 06, itself and the figure (a) in Fig. 4
Structure it is similar, its difference is the difference of the between outer land stage structure of two level cylinder body 06.In order to adjust sealing ring
Crush, the outer step of two level cylinder body 06, which is provided with, has two-stage, its two between outer land terrace of formation, and it is respectively the
Three step surfaces 064 and the 4th step surface 065, central shaft distance of the 3rd step surface 064 apart from two level cylinder body 06
Distance less than the 4th step surface 065 apart from the central shaft of two level cylinder body 06.Sealing ring 28 is provided only on the 3rd
On terrace 064, the 3rd step surface 064 and the 4th step surface 065 with the compression fit of motor cabinet 02, motor cabinet
02 compression the 4th step surface 065 can prevent two level cylinder body 06 because piston rod 10 moves and caused by play (because
The possibility that stress continues deformation is there is likely to be after being compressed for elastic seal ring)；By adjust two level cylinder body 06
Three step surfaces 064 and motor cabinet 02 can be adjusted in the axial direction against the spacing between the face of the sealing ring 28 of elasticity
The decrement of whole sealing ring 28.Motor cabinet 02 has the structure for matching/coincideing with above-mentioned two between outer land terrace,
On the one hand be used to fixing and compressing sealing ring 28, another aspect motor cabinet 02 by with the 4th between outer land terrace 065
Two level cylinder body 06 is also pressed on pump housing seat 08 by the seal face matched somebody with somebody from axial direction.
In the present invention, one-level breather cheek valve 15, one-level exhaust check valve 16, two level breather cheek valve 21, two
Level exhaust check valve 23 can use the check valve of identical function existing structure.More excellent, Fig. 5 can be used
Shown one-way valve structures.As shown in figure 5, the check valve includes check valve body 25 and the screw thread of check valve body 25
The valve end cap 27 of connection, the nonreturn valve core 24 being arranged on inside check valve body 25 and positioned at nonreturn valve core 24 and valve
Spring 26 between end cap 27, wherein, check valve body 25 is hollow cylinder, and upside, which is provided with, to be used to input gas
Air admission hole 29, lower end opening end connection valve end cap 27, interface sealing, valve end cap 27 is provided with venthole 30；
Installation nonreturn valve core 24 with gap, check valve are coaxially left in the inner chamber that check valve body 25 and valve end cap 27 are formed
Core 24 is provided with and protrudes above portion 241 and lower protuberance 242, protrudes above and is filled between portion 241 and the inwall of check valve body 25
If valve seals 31, the lower outside pocketed springs 26 of protuberance 242；Protrude above portion 241 and lower protuberance 242
Outside diameter it is different, the anti-loaded direction of check valve can be prevented.
The operation principle of check valve is：When gas is via the air admission hole of the side of remote spring 26 of check valve body 25
29 enter it is fashionable, gas apply a pressure to nonreturn valve core 24 on and promote nonreturn valve core 24 to the side of valve end cap 27
To motion, spring 26 is increased the gap between nonreturn valve core 24 and check valve body 25, valve body by compression simultaneously
Sealing ring 31 can not be sealed effectively, and gas enters check valve body 25, and via check valve body 25 and nonreturn valve core
Discharged from the venthole 30 of valve end cap 27 in space between 24.When no gas enters or entered from air admission hole 29
When the power that the gas entered applies is not enough to compression spring 26, the spring 26 compressed rebounds, and applies a bounce-back upwards
Power makes nonreturn valve core 24 be moved to the direction of air admission hole 29 on the top of check valve body 25, reduces nonreturn valve core 24
With the gap between check valve body 25, nonreturn valve core 24 oppress valve seals 31 implement sealing, when reversely from
When venthole 30 enters gas, sealing ring 31 is further compressed holding lasting seals, makes gas can not be from air inlet
Hole 29 is back through so as to realize one-way air inlet.
The beneficial effect of check valve：Firstth, it is compact-sized, it is possible to achieve volume minimizes, and saves space；The
2nd, can be manufactured separately, then in inserting to the element needed, convenient use and replacement；And the 3rd, change
Installation direction is that opposite opening direction, convenient use can be achieved.
The assembling of each part obtains cylinder body guide miniature of the present invention and is pressurized electric air pump more than.Its operation principle
It is as follows：
In fig. 2, motor 10 drives eccentric shaft 04 to rotate, and drivening rod 05 and piston rod 10 are transported to the right
Move and be finally reached the rightmost side.Now in the side of one-level cylinder body 081 (pump housing low-pressure section, low pressure (LP) cylinder), one
Level breather cheek valve 15 is opened, and one-level exhaust check valve 16 is closed, and extraneous air is via one-level suction line 14
Into the space inside one-level cylinder body 081 gradually increases and reaches maximum；It is meanwhile (high in two level cylinder body 06
Cylinder pressure) side, two level breather cheek valve 21 closes, and the gas before from one-level cylinder body 081 is in secondary cylinder
Further compressed in body 06, so as to which its pressure increases, realize the two-stage supercharging process of gas, now, two level
Exhaust check valve 23 is opened and discharges the gas after two-stage supercharging.
In figure 3, motor 10 drives eccentric shaft 04 to rotate, and drivening rod 05 and piston rod 10 are transported to the left
Move and be finally reached the leftmost side.Now closed in the side of one-level cylinder body 081, one-level breather cheek valve 15, one
Level exhaust check valve 16 is opened, and the gas in one-level cylinder body 081 is via one-level gas exhaust piping 17, transition pipe 19
Two level breather cheek valve 21 and two level suction line 20 enter two level cylinder body 06；Now, two level cylinder body 06 connects
The gas in one-level cylinder body 081 is received, because the area at piston one-level end 101 is more than piston two level end 102
Area, volume is compressed after the gas of one-level cylinder body 081 enters two level cylinder body 06, so as to the increase of its pressure,
Realize the one-level pressurization of gas.In the process, if the gas pressure in two level cylinder body 06 is arranged less than two level
During the pressure of the outlet side of gas check valve 23, secondary exhaust check valve 23 still remains turned-off；If two level cylinder body 06
When interior gas pressure is more than the pressure of the outlet side of secondary exhaust check valve 23, secondary exhaust check valve 23 is opened,
One-level pressurization gas in two level cylinder body 06 is expelled directly out by secondary exhaust pipeline 22.
Thus, extraneous gas is inhaled into one-level cylinder body 081 (such as Fig. 2), is compressed (such as in one-level cylinder body 081
Fig. 3) enter secondary cylinder body 06 afterwards, the one-level to diminish in two level cylinder body 06 by volume is pressurized and pressed again
The two-stage supercharging of contracting (such as Fig. 2), is discharged via secondary exhaust pipeline 22.Cylinder body guide miniature of the present invention is electronic
The such circulation work of air pump, realize the function of lasting offer pressurization gas.
The anti-ballistic of the present invention has the beneficial effect that to what Miniature electric air pump was realized：
(1) in the part of two level cylinder body 06, by combination seal 07 be arranged on the inner surface of two level cylinder body 06 with
In the annular groove that the outer surface of piston rod 10 limits, so as to by existing piston rod 10 and two level cylinder body 06 it
Between dynamic sealing be modified to static sealing so that life-span of combination seal 07 improves；
(2) two level cylinder body 06 is located at the piston two level end 102 of piston rod 10, turns into axle in structure, hole coordinates
Guiding mechanism formed and carry the air pump of guide function, the cooperation of two level cylinder body 06 and piston rod 10 apart from longer,
So that the stability that piston rod 10 moves improves, change using seal as piston guide major part state,
Reduce sealing part abrasion；
(3) two level cylinder body 06 is made of wear-resisting, self-lubricating material, reduces two level cylinder body 06 and piston rod
Frictional force between 10, improve the electric air pump life-span；
(4) can be formed a kind of with self-lubricating without lubricating oil between two level cylinder body 06 and piston rod 10
Oil-free lubrication is pressurized electric air pump, reduces the pollution of electric air pump；And
(5) face area at the piston one-level end 101 is larger, when piston rod 10 is to left movement, due to
The pressure of one-level cylinder body 081 is smaller, and connecting rod 05 only needs to apply less power and can be achieved first-stage cylinder to piston rod 10
A large amount of gases in body 081 are discharged in two level cylinder body 06, in this way, motor 01 also only needs to provide less power
To connecting rod, energy consumption is saved；And the face area at piston two level end 102 is smaller, the gas pressure of output can be very
Height, the power that piston rod 10 needs is smaller, therefore, when piston rod 10 moves right, it is possible to achieve to two level
Gas in cylinder body 06 is pressurized, and realizes the two-stage supercharging process of gas.
It will be appreciated by those skilled in the art that these embodiments or embodiment are merely to illustrate the present invention without limiting
The scope of the present invention, the various equivalent variations and modification made to the present invention belong to the disclosure of invention.
Claims (14)
1. a kind of cylinder body guide miniature booster-type electric air pump, including pump housing seat, the motor cabinet that is connected with pump housing seat and
Motor, by the eccentric shaft of motor driven, the connecting rod interlocked with eccentric shaft, one-level cylinder body, two level cylinder body, be located in
Piston rod synchronization-moving with connecting rod and located at the multiple unidirectional of two cylinder body outer ends among one-level cylinder body and two level cylinder body
Valve, it is characterised in that：
The both ends of the pump housing seat (08) form one-level cylinder body (081) and two level cylinder body support base (082), two level
Cylinder body (06) be assemblied on the inside of two level cylinder body support base (082) and with one-level cylinder body (081) coaxial line；Two level
Cylinder body (06) volume is less than the volume of first-stage cylinder body (081), and the one-level gas exhaust piping of one-level cylinder body (081)
(17) connected with the two level suction line (20) of two level cylinder body (06)；
Piston rod (10) both ends set piston one-level end (101) and piston two level end (102), piston one-level end and one
Level cylinder body (081) coordinates, and piston two level end is stretched into two level cylinder body (06) to be coordinated with two level cylinder body.
2. cylinder body guide miniature booster-type electric air pump according to claim 1, it is characterised in that：The two level
Cylinder body (06) is hollow cylinder, and inner inner surface is provided with First terrace (062), the second combination seal (07)
First terrace (062) place is assemblied in, second combination seal (07) is supported in the side of pump housing seat (08).
3. cylinder body guide miniature booster-type electric air pump according to claim 2, it is characterised in that：Described first
Step surface (062) causes the inner surface of the two level cylinder body (06) to form the first order through hole (061) to communicate with each other
With second level through hole (066), the diameter of first order through hole (061) is more than the diameter of second level through hole (066),
The piston two level end of the inner surface of first order through hole (061), First terrace (062) and piston rod (10)
(102) outer surface is collectively forming an annular groove, and the second combination seal (07) is placed in the annular groove.
4. the cylinder body guide miniature booster-type electric air pump according to Claims 2 or 3, it is characterised in that：It is described
First terrace is perpendicular to the axial direction of two level cylinder body (06).
5. according to Claims 2 or 3 or the 4 cylinder body guide miniature booster-type electric air pumps, it is characterised in that：
Pump housing seat (08) is provided with a pair of mutual corresponding protuberances (083) with two level cylinder body (06) junction and is used to keep out
Second combination seal (07).
6. according to any cylinder body guide miniature booster-type electric air pump of claim 2 to 5, it is characterised in that：
The outer end outer surface of the two level cylinder body (06) is supported at least provided with second step face (063), a sealing ring (28)
The second step face (063) is connected to, the sealing ring (28) is supported in the side of motor cabinet (04).
7. cylinder body guide miniature booster-type electric air pump according to claim 6, it is characterised in that：The two level
The outer end outer surface of cylinder body (06) is provided with the 3rd step surface (064) and the 4th step surface (065) two-stage step,
Sealing ring (28) is connected to the 3rd step surface (064), and the sealing ring (28) is supported in the side of motor cabinet (04)
And the 4th step surface (065).
8. cylinder body guide miniature booster-type electric air pump according to claim 7, it is characterised in that：3rd step
Face (064) is less than the 4th step surface (065) apart from two level cylinder body apart from the central shaft distance of two level cylinder body (06)
(06) distance of central shaft.
9. according to any cylinder body guide miniature booster-type electric air pump of claim 1 to 8, it is characterised in that：
The face area at piston one-level end (101) is more than the face area at piston two level end (102), corresponding first-stage cylinder
The axial cross section area of body (081) is more than the axial cross section area of two level cylinder body (06).
10. cylinder body guide miniature booster-type electric air pump according to claim 9, it is characterised in that：First-stage cylinder
Body (081) outer end is sequentially provided with cylinder body pad (12), the one-level breather cheek valve (15) of reverse-fitting and one-level row
Gas check valve (16) and end cap (13), one-level breather cheek valve (15) and one-level exhaust check valve (16) with
One-level cylinder body (081) inner chamber connects, one-level suction line (14) the connection ambient atmos on end cap (13) and with
One-level breather cheek valve (15) is connected, and the one-level gas exhaust piping (17) on end cap (13) and one-level exhaust are single
It is connected to valve (16), and passes through the two level suction line (20) of a transition pipe (19) and two level cylinder body (06)
Connection.
11. according to any one of claim 1 to the 10 cylinder body guide miniature booster-type electric air pump, its feature exists
In：
Two level cylinder body (06) outer end is arranged with two level suction line (20) and secondary exhaust pipeline (22), and two level is inhaled
Two level breather cheek valve (21) for controlling air inlet, one-level cylinder body (081) are installed before air pipe (20) entrance
One-level gas exhaust piping (17) pass through a transition pipe (19) and the two level breather cheek valve (21) and two level air-breathing
Pipeline (20) connects；Secondary exhaust pipeline (22) outlet installation is used for the secondary exhaust check valve (23) for controlling outlet.
12. according to the cylinder body guide miniature booster-type electric air pump of claim 10 or 11, it is characterised in that：
Also set a pressing plate (18), end cap (13), pump housing seat (08) and motor of the lid crimping together in one-level cylinder body (081)
Seat (02) upper end and by the two level breather cheek valve (21) and secondary exhaust check valve (23) of two level cylinder body (06)
Compress；The transition pipe (19) is built in pressing plate (18).
13. according to any cylinder body guide miniature booster-type electric air pump of claim 1 to 12, it is characterised in that：
Eccentric shaft (04) is provided with the groove coaxial with motor shaft and the driving handle (041) of reverse disalignment, motor (01)
Motor shaft extend into the groove, driving handle (041) connects one end of horizontally disposed connecting rod (05)；Connecting rod
(05) other end connects the piston rod (10) for the horizontal direction for having distance with it by the pin (09) of vertical setting.
14. 1 to 13 any cylinder body guide miniature booster-type electric air pump is wanted according to right, it is characterised in that：
The check valve include check valve body (25), be threadedly coupled with check valve body valve end cap (27), be arranged on unidirectionally
The nonreturn valve core (24) of valve inner and the spring (26) between nonreturn valve core and valve end cap, wherein, unidirectionally
Valve body (25) is hollow cylinder, and upside is provided with the air admission hole (29) for being used for inputting gas, and opening end sealing in lower end connects
Valve end cap (27) is connect, valve end cap is provided with venthole (30)；Coaxially stayed in the inner chamber that check valve body and valve end cap are formed
With a gap install nonreturn valve core (24), nonreturn valve core be provided with outside diameter it is different protrude above portion (241) and under
Protuberance (242), protrude above and valve seals (31) installed between portion (241) and check valve body (25) inwall,
Lower protuberance (242), outside pocketed springs (26).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610582819.2A CN107642478A (en) | 2016-07-22 | 2016-07-22 | A kind of cylinder body guide miniature booster-type electric air pump |
| PCT/CN2017/092962 WO2018014790A1 (en) | 2016-07-22 | 2017-07-14 | Fully-automated hand-held pressure calibrator |
| EP17830424.2A EP3495795B1 (en) | 2016-07-22 | 2017-07-14 | Fully-automated hand-held pressure calibrator |
| US16/329,096 US10976211B2 (en) | 2016-07-22 | 2017-07-14 | Fully-automated handheld pressure calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610582819.2A CN107642478A (en) | 2016-07-22 | 2016-07-22 | A kind of cylinder body guide miniature booster-type electric air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107642478A true CN107642478A (en) | 2018-01-30 |
Family
ID=61109352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610582819.2A Pending CN107642478A (en) | 2016-07-22 | 2016-07-22 | A kind of cylinder body guide miniature booster-type electric air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107642478A (en) |
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| CN108386357A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of single screw compressor anti-liquid impact device |
| CN108571480A (en) * | 2018-05-18 | 2018-09-25 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
| CN110131223A (en) * | 2019-06-06 | 2019-08-16 | 哈尔滨工程大学 | A kind of underwater second level high pressure bubble source based on push-rod piston |
| CN110529361A (en) * | 2019-09-25 | 2019-12-03 | 厦门加华电力科技有限公司 | Reciprocating no oil piston micro air pump and its working method |
| CN114152386A (en) * | 2020-09-08 | 2022-03-08 | 北京康斯特仪表科技股份有限公司 | Single-piston type dynamic friction supercharging pressure regulating device |
| CN114152387A (en) * | 2020-09-08 | 2022-03-08 | 北京康斯特仪表科技股份有限公司 | Dynamic friction supercharging pressure regulating method and device |
| CN115977912A (en) * | 2023-01-05 | 2023-04-18 | 山东泰展机电科技股份有限公司 | Multistage booster air pump for vehicle |
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| CN114152386A (en) * | 2020-09-08 | 2022-03-08 | 北京康斯特仪表科技股份有限公司 | Single-piston type dynamic friction supercharging pressure regulating device |
| CN114152387A (en) * | 2020-09-08 | 2022-03-08 | 北京康斯特仪表科技股份有限公司 | Dynamic friction supercharging pressure regulating method and device |
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Application publication date: 20180130 |