CN211852078U - Safe air pump - Google Patents
Safe air pump Download PDFInfo
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- CN211852078U CN211852078U CN202020135014.5U CN202020135014U CN211852078U CN 211852078 U CN211852078 U CN 211852078U CN 202020135014 U CN202020135014 U CN 202020135014U CN 211852078 U CN211852078 U CN 211852078U
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Abstract
The utility model discloses a safe air pump, which comprises a pump body, an air pumping motor in the pump body, and a main air pumping port and an air outlet which are respectively arranged at two ends of the pump body, wherein an auxiliary air pumping port and a safety valve arranged in the auxiliary air pumping port are mainly additionally arranged on the pump body; thus, when the sealed bag is vacuumized, and the air pressure difference between the inside of the pump body and the outside does not reach the threshold value of the safety valve, the safety valve is closed, and the air in the sealed bag is pumped into the main air pumping hole by the air pumping motor and is discharged from the air outlet; when the vacuum pumping is finished in the sealing bag, when the air pressure difference between the interior of the pump body and the outside reaches the threshold value of the safety valve, the safety valve is opened, the air pumping motor simultaneously pumps the outside air through the auxiliary air pumping port and discharges the outside air from the air outlet, so that the air pumping motor can realize air exchange through the outside air compensation entering the auxiliary air pumping port, and the idle running state is avoided, thereby effectively preventing the running temperature of the air pumping motor from rising, prolonging the service life, and eliminating the potential safety hazard.
Description
Technical Field
The utility model relates to an air pump specifically indicates a safe air pump.
Background
At present, many families all can accomodate the bedding and clothing in the seal bag, and the air in the seal bag is taken out to the rethread aspiration pump, also carries out the evacuation to the seal bag to make the seal bag of being equipped with the bedding and clothing can reduce the volume, convenient collection storage. Wherein, the structure of air pump mainly is by the pump body, the air exhaust motor in the pump body, and set up main extraction opening and gas outlet etc. at pump body both ends respectively and constitute, connect the extraction joint on the sealed bag with main extraction opening during the use, just can be discharged from the gas outlet by the air in main extraction opening in the sealed bag through the extraction joint suction after starting the air exhaust motor, after taking out into the vacuum in the sealed bag, namely when main extraction opening no longer draws the air, the air exhaust motor will be in idle running state, because there is not the air exchange and lead to the rising of air exhaust motor running temperature, so the air exhaust motor frequently is in this kind of operating condition and obviously can greatly influence life, also there is the potential safety hazard in use easily.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect and provide a safe aspiration pump safe in utilization, long service life.
The technical problem of the utility model is realized through following technical scheme:
a safe air pump comprises a pump body, an air pumping motor in the pump body, and a main air pumping hole and an air outlet which are respectively arranged at two ends of the pump body, wherein the pump body is provided with an auxiliary air pumping hole and a safety valve arranged in the auxiliary air pumping hole; the air pressure difference between the inside of the pump body and the outside does not reach the threshold value of the safety valve, the safety valve is closed, and the air pumping motor pumps air from the main air pumping port and discharges the air from the air outlet; the air pressure difference between the interior of the pump body and the outside reaches the threshold value of the safety valve, the safety valve is opened, and the air pumping motor simultaneously pumps air in through the auxiliary air pumping port and discharges the air from the air outlet.
The auxiliary pumping hole comprises an installation cavity which is concavely formed in the pump body, an inner port of the installation cavity is communicated into the pump body, an outer port of the installation cavity is provided with a valve cover which is installed in a closed mode, and densely distributed air inlet holes are formed in the valve cover.
The safety valve comprises a valve core column arranged in the installation cavity and a spring sleeved outside the valve core column, wherein the upper end of the valve core column movably penetrates through the inner port of the installation cavity to be provided with a valve plate, the upper end of the spring pushes against the inner top surface of the installation cavity, and the lower end of the spring pushes against the lower end of the valve core column and pushes the valve core column to move to drive the valve plate to seal the inner port.
The lower end of the valve core column is provided with an integrally formed spring seat, and the lower end of the spring is arranged in the spring seat in a pushing mode.
The top of the pump body is provided with a handle.
Compared with the prior art, the utility model is mainly characterized in that an auxiliary air exhaust opening and a safety valve arranged in the auxiliary air exhaust opening are additionally arranged on the pump body; therefore, when the sealed bag is vacuumized, and the air pressure difference between the inside of the pump body and the outside does not reach the threshold value of the safety valve, the safety valve is in a closed state, and the air pumping motor can pump air in the sealed bag through the main air pumping hole and discharge the air from the air outlet; when the evacuation is accomplished in the sealed bag, that is to say the air exhaust motor can't be from main extraction opening suction air again, when the internal atmospheric pressure difference with the external world of pump reaches the threshold value of relief valve, this relief valve is opened, the air exhaust motor just can be simultaneously by vice extraction opening suction external air and discharge from the gas outlet, the event makes the air exhaust motor can realize the air exchange through the external air compensation that vice extraction opening got into, avoid appearing idle running state, thereby effectively prevented the rising of air exhaust motor running temperature, and reach increase of service life, eliminate the purpose of potential safety hazard.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a (relief valve removed).
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings.
As shown in the figures 1 and 2, the air pump comprises a pump body 1, a handle 11, an air pumping motor 2, a main air pumping port 3, an air outlet 4, an auxiliary air pumping port 5, an auxiliary air pumping port 51, a mounting cavity 511, an inner port 52, a valve cover 521, an air inlet hole 6, a safety valve 61, a valve core column 611, a spring seat 62, a spring 63 and a valve plate.
A kind of safe air pump, as shown in figure 1, mainly relate to a kind of air extracting tool used for pumping the air in the sealed bag containing the bedding and clothing, namely vacuumize the sealed bag, thus make the sealed bag can reduce the volume, facilitate the collection and storage, its structure is by the plastic material empty shell pump body 1, install in pump body air-extracting motor 2, and set up main air exhaust 3 and air outlet 4, etc. in pump body both ends separately and form, take figure 1 as an example, the left side of view is the main air exhaust 3, the right side of view is the air outlet 4; the top of the pump body 1 is provided with a handle 11 for convenient lifting, and the pump body 1 is also provided with an auxiliary pumping hole 5 and a safety valve 6 arranged in the auxiliary pumping hole.
The auxiliary air suction opening 5 is shown in fig. 2 and comprises an installation cavity 51 which is concavely formed in the pump body 1, namely, as shown in fig. 1, an installation cavity 51 is concavely formed in the lower part of the pump body 1, an inner port 511 of the installation cavity penetrates into the pump body 1 and is communicated with the main air suction opening 3, a valve cover 52 which is installed in a sealing manner is arranged at the outer port, dense air inlet holes 521 are arranged on the valve cover, and each air inlet hole is communicated with the installation cavity 51.
The safety valve 6 comprises a valve core column 61 arranged in the installation cavity 51 and a spring 62 sleeved outside the valve core column, wherein the valve core column 61 is vertically installed, the upper end of the valve core column movably penetrates through an inner port 511 of the installation cavity 51 and is provided with a fixedly installed valve plate 63, and the lower end of the valve core column is provided with an integrally formed spring seat 611.
The upper end of the spring 62 is pushed against the inner top surface of the mounting cavity 51, and the lower end of the spring 62 is pushed against the spring seat 611 at the lower end of the valve stem 61, so that the valve stem 61 in a normal state can move downwards under the elastic pushing of the spring 62 and drive the valve plate 63 to seal the inner port 511; it can be seen that the threshold for opening of the safety valve 6 is actually determined by the elasticity of the spring 62.
The working process of the utility model is as follows: when the sealed bag containing the bedding and clothing is vacuumized, and the air pressure difference between the interior of the pump body 1 and the outside does not reach the threshold value of the safety valve 6, the safety valve 6 is in a closed state, namely the spring 62 pushes the valve stem 61 to drive the valve sheet 63 to seal and seal the inner port 511, and at the moment, the air pumping motor 2 can pump the air in the sealed bag from the main air pumping port 3 and discharge the air from the air outlet 4; when the vacuum pumping is completed in the sealed bag, namely the air pumping motor 2 can not pump air from the main air pumping port 3, and the air pressure difference between the interior of the pump body 1 and the outside reaches the threshold value of the safety valve 6, namely the outside air overcomes the elastic force of the spring 62 to push the valve plate 63 to open the inner port 511, the safety valve 6 is also opened, the air pumping motor 2 can pump the outside air from the auxiliary air pumping port 5 and discharge the outside air from the air outlet 4, so that the air pumping motor 2 can realize air exchange through the compensation of the outside air entering from the auxiliary air pumping port 5, and the idle running state is avoided, thereby effectively preventing the running temperature of the air pumping motor from rising, prolonging the service life, and eliminating the potential safety hazard.
The above description is only an embodiment of the present invention, and it should be understood by those skilled in the art that any structural design equivalent to this embodiment is included in the scope of the present invention.
Claims (5)
1. A safe air pump comprises a pump body (1), an air pumping motor (2) in the pump body, and a main air pumping port (3) and an air outlet (4) which are respectively arranged at two ends of the pump body (1), and is characterized in that the pump body (1) is provided with an auxiliary air pumping port (5) and a safety valve (6) arranged in the auxiliary air pumping port; the air pressure difference between the inside of the pump body (1) and the outside does not reach the threshold value of the safety valve (6), the safety valve (6) is closed, and the air pumping motor (2) pumps air from the main air pumping port (3) and discharges the air from the air outlet (4); the air pressure difference between the inside of the pump body (1) and the outside reaches the threshold value of the safety valve (6), the safety valve (6) is opened, and the air pumping motor (2) simultaneously pumps air from the auxiliary air pumping port (5) and discharges the air from the air outlet (4).
2. A safety air pump according to claim 1, characterized in that the auxiliary air suction opening (5) comprises a mounting cavity (51) formed in the pump body (1) in a concave manner, an inner port (511) of the mounting cavity penetrates into the pump body (1), an outer port is provided with a valve cover (52) installed in a closed manner, and the valve cover is provided with densely distributed air inlet holes (521).
3. The air pump according to claim 2, characterized in that the safety valve (6) comprises a valve stem (61) disposed in the mounting cavity (51) and a spring (62) sleeved outside the valve stem, the upper end of the valve stem (61) movably penetrates through the inner port (511) of the mounting cavity (51) to mount a valve plate (63), the upper end of the spring (62) pushes against the inner top surface of the mounting cavity (51), and the lower end of the spring (62) pushes against the lower end of the valve stem (61) and pushes the valve stem to move to drive the valve plate (63) to seal the inner port (511).
4. A safety air pump according to claim 3 wherein the lower end of the valve stem (61) is provided with an integrally formed spring seat (611), and the lower end of the spring (62) is mounted in the spring seat (611) in a pushing manner.
5. A safety air pump according to claim 1, characterized in that the top of the pump body (1) is provided with a handle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020135014.5U CN211852078U (en) | 2020-01-21 | 2020-01-21 | Safe air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020135014.5U CN211852078U (en) | 2020-01-21 | 2020-01-21 | Safe air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852078U true CN211852078U (en) | 2020-11-03 |
Family
ID=73232900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020135014.5U Active CN211852078U (en) | 2020-01-21 | 2020-01-21 | Safe air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852078U (en) |
-
2020
- 2020-01-21 CN CN202020135014.5U patent/CN211852078U/en active Active
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