CN213899234U - Electric air pump - Google Patents
Electric air pump Download PDFInfo
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- CN213899234U CN213899234U CN202022412966.XU CN202022412966U CN213899234U CN 213899234 U CN213899234 U CN 213899234U CN 202022412966 U CN202022412966 U CN 202022412966U CN 213899234 U CN213899234 U CN 213899234U
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Abstract
The utility model provides an electric air pump, which comprises a shell, an upper cover, a lower cover, a bottom cover, a sealing ring, a sealing sleeve, an air pump, an air pressure sensor and a filter screen; the upper cover is arranged above the shell; the lower cover is arranged below the shell; the bottom of the lower cover is provided with a boss, a first retaining wall and a second retaining wall in sequence from the center to the outside; the boss is provided with a first vent hole; a second vent hole is arranged on the lower cover corresponding to the position between the first retaining wall and the second retaining wall; the air pump and the air pressure sensor are respectively arranged above the lower cover, and the air pump is communicated with the first vent hole; the air pressure sensor is positioned above the second vent hole; the bottom cover is abutted against the lower part of the first retaining wall; an inserting part inserted between the boss and the first blocking wall is arranged above the bottom cover; the sealing ring is arranged between the inserting part and the first retaining wall; an air inlet is arranged on the bottom cover; the filter screen is arranged between the bottom cover and the lower cover; the sealing sleeve is sleeved on the second blocking wall; embodies the utility model discloses can effectively protect and the gas tightness is good to the air pump, improve the effect of bleeding.
Description
Technical Field
The utility model relates to an aspiration pump technical field, in particular to electric aspiration pump.
Background
The electric air pump is used for pumping gas, the electric air pump in the past directly pumps the gas in the container, if the gas in the container contains more dust, the dust can be piled up inside the pump body, the long-term use can cause the influence to the work of the pump body, in addition, when carrying out the evacuation operation to the container, need to have sufficient good sealed effect to the inlet channel position of electric air pump, otherwise difficult to carry out the vacuum pumping, sealed effect in the past is also not perfect enough, consequently still need improve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric air pump mentions the problem in order to solve the background art.
In order to achieve the above object, the present invention provides the following technical solutions:
an electric air pump comprises a shell, an upper cover, a lower cover, a bottom cover, a sealing ring, a sealing sleeve, an air pump, an air pressure sensor and a filter screen; the upper cover is arranged above the shell; the lower cover is arranged below the shell; the center of the bottom of the lower cover is provided with a boss; the periphery of the lower cover corresponding to the lug boss is provided with an annular first blocking wall, and the periphery of the lower cover corresponding to the first blocking wall is provided with an annular second blocking wall; the boss is provided with a first vent hole; a second vent hole is formed in the lower cover corresponding to the position between the first blocking wall and the second blocking wall; the air pump is arranged above the lower cover, and an air pumping port of the air pump is communicated with the first vent hole; the air pressure sensor is arranged above the lower cover, and an induction head of the air pressure sensor is positioned above the second vent hole; the bottom cover is abutted against the lower part of the first blocking wall; an inserting part is arranged above the bottom cover; the insertion part is inserted between the boss and the first blocking wall; the outer wall of the insertion part is provided with an installation groove for installing a sealing ring; the sealing ring is arranged in the mounting groove and abuts against the inner wall of the first blocking wall; an air inlet is formed in the bottom cover corresponding to the inner side of the insertion part; the filter screen is arranged between the bottom cover and the lower cover and is positioned at the position of the air inlet; the sealing sleeve is sleeved at the bottom and the periphery of the second blocking wall.
For further description of the present invention, a battery jar is provided in the housing; a battery cover is mounted above the shell.
To further describe the present invention, the upper cover is provided with a carrying portion.
For further description of the present invention, the four air inlets are annularly distributed; a third blocking wall is arranged above the bottom cover and corresponds to the periphery of the air inlet; supporting strips are arranged on the periphery of the third retaining wall; a sinking groove is formed in the boss at a position corresponding to the third baffle wall; the third retaining wall penetrates into the sinking groove and the supporting bars are abutted to the inner wall of the sinking groove; the filter screen is placed in the third blocking wall in a columnar shape and is supported by the bottom cover; the upper end of the filter screen is abutted against the top of the sinking groove.
For further description of the present invention, the periphery of the second retaining wall is provided with a raised strip which is annularly arranged and has a semicircular cross section; a groove matched with the raised line is formed in the inner wall of the sealing sleeve; and a clamping groove used for clamping the lower end of the second retaining wall is formed in the bottom of the sealing sleeve.
To the further description of the present invention, the upper cover is provided with a control button.
The utility model has the advantages that:
the utility model discloses an added the bottom the lower cover, the filter screen has been installed between bottom and the lower cover, the air is after the air inlet on the bottom, filter through the filter screen again, gaseous from first air vent entering into in the air pump again after filtering, thereby can filter the air, play the protection effect to the air pump, and consider from the leakproofness, install the sealing washer between bottom and the lower cover, it is equipped with the seal cover also to overlap on the second fender wall, can guarantee the in-process of bleeding, the air does not expose, and the second air vent setting on the lower cover is between first fender wall and second fender wall, baroceptor senses the atmospheric pressure value of the gas of extraction more accurate through this second gas vent, the atmospheric pressure value reaches the control air pump after the setting value and stops, control accuracy is higher.
Drawings
FIG. 1 is an overall structure of the present invention;
FIG. 2 is a structural diagram of the lower cover of the present invention;
FIG. 3 is a structural view of the bottom cover of the present invention;
fig. 4 is a structural diagram of the sealing sleeve of the present invention.
Detailed Description
The invention is further explained below with reference to the drawings:
as shown in fig. 1-4, an electric air pump 7 comprises a housing 1, an upper cover 2, a lower cover 3, a bottom cover 4, a sealing ring 5, a sealing sleeve 6, an air pump 7, an air pressure sensor 8 and a filter screen 9; the upper cover 2 is arranged above the shell 1; the upper cover 2 is provided with a hand-held part 21 and a control button 22; the lower cover 3 is arranged below the shell 1; the center of the bottom of the lower cover 3 is provided with a boss 31; the lower cover 3 is provided with an annular first blocking wall 32 corresponding to the periphery of the boss 31 and an annular second blocking wall 33 corresponding to the periphery of the first blocking wall 32; the boss 31 is provided with a first vent hole 34; a second vent hole 35 is formed in the lower cover 3 corresponding to the space between the first blocking wall 32 and the second blocking wall 33; the air pump 7 is arranged above the lower cover 3, and an air pumping port of the air pump 7 is communicated with the first vent hole 34; the air pressure sensor 8 is arranged above the lower cover 3, and an induction head of the air pressure sensor 8 is positioned above the second vent hole 35; the bottom cover 4 abuts below the first blocking wall 32; an inserting part 41 is arranged above the bottom cover 4; the insertion portion 41 is inserted between the boss 31 and the first blocking wall 32; an installation groove 411 for installing the sealing ring 5 is formed in the outer wall of the insertion part 41; the sealing ring 5 is installed in the installation groove 411 and abuts against the inner wall of the first blocking wall 32; an air inlet 42 is arranged on the bottom cover 4 corresponding to the inner side of the insertion part 41; the filter screen 9 is arranged between the bottom cover 4 and the lower cover 3 and is positioned at the position of the air inlet 42; the sealing sleeve 6 is sleeved at the bottom and the periphery of the second retaining wall 33; when the air in the container needs to be pumped, the bottom of the lower cover 3 is connected with the inside of the container through an air pipe, the control button 22 is pressed, the air pump 7 starts to pump the air, and in the pumping process, the gas in the container firstly enters the second blocking wall 33 of the lower cover 3, the gas pressure sensor 8 detects the gas pressure in the second blocking wall 33, the gas enters between the bottom cover 4 and the boss 31 through the gas inlet 42 of the bottom cover 4, at this position, the air will pass through the filter screen 9, and after being filtered by the filter screen 9, the air will enter the air pump 7 through the first vent hole 34, and the air passing through the air pump 7 will be discharged to the inside of the housing, the gas in the interior of the housing is discharged through the connecting gaps of the housing with the lower cover 3 and the upper cover 2, when the pressure sensed by the air pressure sensor 8 reaches a set value, a signal is sent to the air pump 7 to control the air pump 7 to stop, and the air is pumped out.
A battery jar 11 is arranged in the shell 1; a battery cover 12 is installed above the housing 1, and power is supplied by installing a battery.
The four air inlets 42 are distributed annularly; a third baffle wall 43 is arranged above the bottom cover 4 corresponding to the periphery of the air inlet 42; a support bar 431 is arranged on the periphery of the third blocking wall 43; a sinking groove 37 is formed in the boss 31 at a position corresponding to the third blocking wall 43; the third retaining wall 43 penetrates into the sinking groove 37, and the supporting bar 431 is in top contact with the inner wall of the sinking groove 37; the filter screen 9 is placed in the third baffle wall 43 in a columnar shape and is supported by the bottom cover 4; the upper end of the filter screen 9 is abutted against the top of the sinking groove 37; after the gas passes through the gas inlet 42, namely, the gas passes through the filter screen 9, the gas flows upward from below and then passes through the filter screen 9 to be filtered, and then flows downward from above between the third retaining wall 43 and the sink groove 37, the gas enters between the bottom cover 4 and the lower cover 3 and then enters the gas pump 7 through the first vent hole 34, the gas filtering is completed between the third retaining wall 43 and the forming groove, and the cleanness between the bottom cover 4 and the lower cover 3 is ensured.
A raised strip 36 which is annularly arranged and has a semicircular section is arranged on the periphery of the second blocking wall 33; a groove 61 matched with the convex strip 36 is arranged on the inner wall of the sealing sleeve 6; a clamping groove 62 for clamping the lower end of the second retaining wall 33 is formed at the bottom of the sealing sleeve 6; this setting can effectively prevent to bleed the in-process, and gas is leaked from second retaining wall 33, improves the gas tightness.
The working principle of the embodiment is as follows:
when the air in the container needs to be pumped, the bottom of the lower cover 3 is connected with the inside of the container through an air pipe, the control button 22 is pressed, the air pump 7 starts to pump the air, and in the pumping process, the gas in the container firstly enters the second blocking wall 33 of the lower cover 3, the gas pressure sensor 8 detects the gas pressure in the second blocking wall 33, the gas enters between the bottom cover 4 and the boss 31 through the gas inlet 42 of the bottom cover 4, at this position, the air will pass through the filter screen 9, and after being filtered by the filter screen 9, the air will enter the air pump 7 through the first vent hole 34, and the air passing through the air pump 7 will be discharged to the inside of the housing, the gas in the interior of the housing is discharged through the connecting gaps of the housing with the lower cover 3 and the upper cover 2, when the pressure sensed by the air pressure sensor 8 reaches a set value, a signal is sent to the air pump 7 to control the air pump 7 to stop, and the air is pumped out.
The above description is not intended to limit the technical scope of the present invention, and any modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (6)
1. An electric air pump, characterized in that: comprises a shell, an upper cover, a lower cover, a bottom cover, a sealing ring, a sealing sleeve, an air pump, an air pressure sensor and a filter screen; the upper cover is arranged above the shell; the lower cover is arranged below the shell; the center of the bottom of the lower cover is provided with a boss; the periphery of the lower cover corresponding to the lug boss is provided with an annular first blocking wall, and the periphery of the lower cover corresponding to the first blocking wall is provided with an annular second blocking wall; the boss is provided with a first vent hole; a second vent hole is formed in the lower cover corresponding to the position between the first blocking wall and the second blocking wall; the air pump is arranged above the lower cover, and an air pumping port of the air pump is communicated with the first vent hole; the air pressure sensor is arranged above the lower cover, and an induction head of the air pressure sensor is positioned above the second vent hole; the bottom cover is abutted against the lower part of the first blocking wall; an inserting part is arranged above the bottom cover; the insertion part is inserted between the boss and the first blocking wall; the outer wall of the insertion part is provided with an installation groove for installing a sealing ring; the sealing ring is arranged in the mounting groove and abuts against the inner wall of the first blocking wall; an air inlet is formed in the bottom cover corresponding to the inner side of the insertion part; the filter screen is arranged between the bottom cover and the lower cover and is positioned at the position of the air inlet; the sealing sleeve is sleeved at the bottom and the periphery of the second blocking wall.
2. An electric suction pump according to claim 1, characterized in that: a battery jar is arranged in the shell; a battery cover is mounted above the shell.
3. An electric suction pump according to claim 1, characterized in that: the upper cover is provided with a hand-held part.
4. An electric suction pump according to claim 1, characterized in that: the four air inlets are distributed annularly; a third blocking wall is arranged above the bottom cover and corresponds to the periphery of the air inlet; supporting strips are arranged on the periphery of the third retaining wall; a sinking groove is formed in the boss at a position corresponding to the third baffle wall; the third retaining wall penetrates into the sinking groove and the supporting bars are abutted to the inner wall of the sinking groove; the filter screen is placed in the third blocking wall in a columnar shape and is supported by the bottom cover; the upper end of the filter screen is abutted against the top of the sinking groove.
5. An electric suction pump according to claim 1, characterized in that: the periphery of the second blocking wall is provided with a raised line which is annularly arranged and has a semicircular section; a groove matched with the raised line is formed in the inner wall of the sealing sleeve; and a clamping groove used for clamping the lower end of the second retaining wall is formed in the bottom of the sealing sleeve.
6. An electric suction pump according to claim 1, characterized in that: the upper cover is provided with a control button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022412966.XU CN213899234U (en) | 2020-10-27 | 2020-10-27 | Electric air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022412966.XU CN213899234U (en) | 2020-10-27 | 2020-10-27 | Electric air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213899234U true CN213899234U (en) | 2021-08-06 |
Family
ID=77114885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022412966.XU Active CN213899234U (en) | 2020-10-27 | 2020-10-27 | Electric air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213899234U (en) |
-
2020
- 2020-10-27 CN CN202022412966.XU patent/CN213899234U/en active Active
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