CN111022290A

CN111022290A - Portable push type air pump

Info

Publication number: CN111022290A
Application number: CN201911195180.2A
Authority: CN
Inventors: 胡海波; 张永贵
Original assignee: Ningbo Albert Novosino Co Ltd
Current assignee: Ningbo Albert Novosino Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-04-17

Abstract

The invention relates to a portable pressing type air pump which comprises an air pump main body, a one-way air inlet valve, an air leakage assembly, an air pipe and a connecting piece, wherein the air pump main body comprises an air pump upper cover, an air pump lower cover, a supporting hard sheet and a check plug, and the air leakage assembly comprises a compression spring and an air leakage button; the air inlet and outlet hole at one end of the lower cover of the air pump is connected with the air pipe, the other end of the air pipe is connected with the connecting piece, and the other end of the connecting piece is connected with a product to be inflated; the check plug is arranged in a central fixing hole of the supporting hard sheet, the periphery of the pressing air bag of the air pump upper cover is welded and sealed with the edge of the supporting hard sheet, and the periphery of the air pump upper cover is welded and sealed with the periphery of the air pump lower cover. The device is small in size, easy to carry, environment-friendly in TPU material, good in rebound resilience, capable of integrally fusing and pressing, firm in welding, capable of achieving the air inlet and inflation non-return function, saving in space, attractive in appearance and good in air tightness, and worthy of popularization.

Description

Portable push type air pump

Technical Field

The invention belongs to the technical field of inflation, is generally applied to the inflation of rehabilitation shoes/rehabilitation shoes, and can also be used for the inflation of protective air bags or brace air bags for heads, necks, chests, waists, legs, hands, feet and the like, and particularly relates to a portable push type air pump.

Background

The conventional air pump has a large volume, is inconvenient to carry, is generally split in an inflation structure, and is easy to leak at a joint due to the addition of the check air release valve. Because the air pump is soft material, advances the release valve and is hard material, advances the easy perk of release valve or slope when pressing, and the general is pressed and is felt well. Therefore, there is a need for an improved air pump product.

Disclosure of Invention

The invention aims to provide a portable manual pressing type air pump so as to overcome the defects.

In order to achieve the above object, the present invention has the following technical means.

A portable push type air pump comprises an air pump main body, a one-way air inlet valve, an air leakage assembly, an air pipe and a connecting piece, wherein the air pump main body comprises an air pump upper cover, an air pump lower cover, a supporting hard sheet and a check plug, and the air leakage assembly comprises a compression spring and an air leakage button; the air inlet and outlet hole at one end of the lower cover of the air pump is connected with the air pipe, the other end of the air pipe is connected with the connecting piece, and the other end of the connecting piece is connected with a product to be inflated; the check plug is arranged in a central fixing hole of the supporting hard sheet, the pressing air bag of the air pump upper cover is welded and sealed with the edge of the supporting hard sheet all around, the air pump upper cover is welded and sealed with the air pump lower cover all around, the one-way air inlet valve is arranged in an air inlet hole of the air pump upper cover main body, and the air escape button and the compression spring are arranged in an air escape hole of the air pump upper cover.

Further, the upper cover of the air pump is made of soft TPU material; the lower cover of the air pump is made of a hard TPU material; the supporting hard sheet is made of hard TPU material, elastic silicon rubber or elastomer material, and the sealing surface of the non-return plug is designed without a joint line, so that air leakage is not easy to occur; the one-way air inlet valve is made of PE material; the compression spring is made of 304 stainless steel, the air release button is made of copper nickel plating or electrophoresis technology, and the lower part of the air release button is provided with a back-off structure, so that the pressing is smooth, the color change and the falling are not easy to occur, and the air tightness is good; the air pipe is a transparent TPU pipe; the connecting piece adopts the PP material of high strength, and the design of no joint line is adopted at the both ends of connecting piece, designs the back-off structure, and the gas tightness is good, is difficult for droing.

Furthermore, one end of the upper cover of the air pump is provided with an air inlet hole, and the one-way air inlet valve is arranged in the air inlet hole; one end of the air pump upper cover is provided with an air leakage hole, and the air leakage assembly is arranged in the air leakage hole; the support hardness is arranged below the upper cover of the air pump, and the periphery of the support hard sheet and the periphery of the convex saccule in the middle of the upper cover of the air pump are welded and sealed in a high-frequency manner; the edge of the lower cover of the air pump and the edge of the upper cover of the air pump are welded and sealed in a high-frequency manner; the upper part of the air inlet is provided with a back-off, the diameter of the back-off is smaller than the air inlet aperture and the outer diameter of the one-way air inlet valve, and the one-way air inlet valve cannot be separated after being installed. The one-way air inlet valve is small in appearance structure, is hidden in the preset groove of the air inlet hole, reduces the volume of a product and increases the attractiveness. The one-way air inlet valve only can be used for air inlet and air leakage, and can also be used for preventing dust and debris from entering the air pump.

Furthermore, the edge and the middle of the lug area below the supporting hard sheet and the air inlet hole are respectively provided with a lug supporting rib and a middle supporting rib for supporting the bottom material of the air inlet area of the upper cover, so that the upper cover is not easy to deform during extrusion, the air space between the air inlet channel of the upper cover and the air inlet channel of the supporting hard sheet is not reduced, and the air pump is ensured to be smoothly inflated.

Furthermore, the upper part of the supporting hard sheet and the lower part of the non-return plug are respectively provided with a plurality of first reinforcing ribs and second reinforcing ribs, so that the hard sheet is not easy to deform, the sealing surface is kept flat, the non-return plug is well matched, and air leakage is not easy to occur in the process of repeatedly extruding and using the air pump; a plurality of circles of convex circular rings are arranged in the middle of the surface, close to the inner cavity of the upper cover of the air pump, of the supporting hard sheet, the diameter of each convex circular ring is similar to that of the pressing finger, and the height of the end part of the non-return plug is not more than that of each convex circular ring, so that the non-return plug is prevented from being extruded when the balloon is pressed, the non-return plug is prevented from displacing or deforming, and sealing is not; the center of the supporting hard sheet is provided with a hard sheet center fixing hole for assembling a non-return plug; four hard sheet air inlets are arranged around the hard sheet central fixing hole. When the non-return plug is pressed and deformed, the non-return plug can be separated from the sealing surface of the hard sheet to generate an air inlet gap, and air flows in through the air inlet hole of the hard sheet and the air inlet gap.

Furthermore, a plurality of long bosses are arranged at the periphery of the round sealing surface below the supporting hard sheet to prop against the bottom cover, and the length of each long boss is larger than the distance between the check plugs during inflation deformation, so that the check plugs have enough deformation space during inflation. In addition, the phenomenon that the movement of the check plug is influenced when the bottom cover is pressed and the check plug is extruded is avoided. The tail part of the non-return plug is designed to be longer, and is easy to penetrate into the central fixing hole of the hard sheet when being assembled with the supporting hard sheet; the reverse buckle at the tail part of the check plug is pulled out to the upper plane along the lower part of the central fixing hole of the hard plate by hands or tools, and the reverse buckle of the check plug is fixed on the upper plane of the central fixing hole, so that the check plug is firmly fixed on the supporting hard plate by the sealing surface and the reverse buckle, and the air pump is not easy to fall off when being inflated and deflated. The fixed length of the non-return plug, even if the distance between the sealing surface and the back-off plane is the same as or slightly close to the thickness of the central fixing hole, the non-return plug can achieve the sealing effect in a natural state. When the air bag of the product to be inflated is inflated, the larger the pressure of the air bag of the product to be inflated is, and the better the sealing effect of the non-return plug is.

Furthermore, the non-sealing surface of the non-return plug is provided with a non-return plug parting surface, so that the risk that the sealing effect is influenced by burrs of the non-return plug parting surface is avoided.

Furthermore, the lower part of the air leakage button is provided with an inverted buckle, and after the air leakage button is assembled to the air leakage hole, the wall thickness of the bottom of the hole is firmly buckled due to the fact that the diameter of the inverted buckle is larger than that of the sealing hole, so that the button cannot fall off when being used repeatedly. A compression spring is arranged below the air release button, when the air release button is in an inflated and static state, because the compression spring is in a compression state, a reverse force is generated to push the air release button upwards, and a sealing ball below the air release button is upwards lifted and is in interference fit with the air release hole, so that a sealing state is achieved; when air is discharged, the button is pressed, an air discharging gap is formed between the button and the air discharging hole, and the air is discharged quickly.

Furthermore, the air pipe and the air inlet and outlet hole of the lower cover of the air inflation pump are slightly in interference fit and are connected by glue, so that the firmness and the air tightness are improved. The two ends of the connecting piece are provided with the reverse buckles, and the connecting piece is not easy to fall off after being assembled with the air pipe or the inflatable product. And the inclined planes of the two pagodas of the connecting piece are integrally designed, no joint line exists, and the sealing performance is good.

Further, the air pump main body is composed of an upper sealing cavity and a lower sealing cavity: the edge of a convex saccule in the middle of the upper cover of the air pump is welded with the edge of the supporting hard sheet at high frequency, and the periphery is sealed; the one-way air inlet valve and the air inlet hole are sealed in an interference manner; an independent upper sealing cavity is formed between the upper cover of the air pump and the air inlet valve, between the air pump upper cover and the air inlet valve and between the air pump upper cover; the edge of the lower cover of the air pump and the edge of the upper cover of the air pump are also welded in a high frequency way, and the periphery is sealed; the air release button and the air release hole are sealed in an interference manner; the lower cover of the air pump, the upper cover of the air pump, a supporting hard sheet connected with the upper cover, an upper stop reverse plug of the hard sheet and the lower cover of the air pump form another independent lower sealing cavity.

The invention has the beneficial effects that: the invention has the following advantages:

1) in the invention, the non-return plug is arranged at the air inlet of the supporting hard plate arranged on the inner side of the upper cover of the air pump, so that the non-return effect is good, the non-return plug is flexible to move, and the sealing effect is good.

2) In the invention, the one-way air inlet valve is arranged at the air inlet hole of the upper cover, has a one-way function, only air is fed, air is not discharged, the air inlet speed is high during inflation, and the operation is easy.

3) According to the invention, the compression spring and the metal air release button are arranged at the air release hole of the upper cover for pressing and releasing air, the inverted buckle structure is arranged at the bottom of the air release valve, the button is not easy to fall off when pressed, and the effect of quick air release can be achieved by slightly pressing.

4) According to the invention, one end of the lower cover of the air pump is connected with the air pipe and the connecting piece, the two ends of the connecting piece are provided with the reverse buckles, the lower cover of the air pump is not easy to fall off after being connected with the pipe, and the other end of the lower cover of the air pump can be freely connected with other air pumps for use, so that the air pump is.

5) The upper cover main body is made of softer TPU material, so that the material has good rebound resilience and good pressing hand feeling.

6) In the invention, the upper cover of the air pump presses the periphery of the air bag and the edge of the supporting hard sheet and is welded at high frequency, and the periphery is sealed; the edge of the upper cover and the edge of the lower cover of the air pump are also welded in a high frequency way, and the periphery is sealed; the air pump upper cover, support hard piece, go up the contrary stopper and the air pump lower cover constitutes complete air pump main part on the hard piece, can not dismantle.

In summary, the device of the invention is provided with a one-way air inlet valve at one end of an upper cover of an air pump, a check plug is arranged in the air pump, and an air inlet and outlet hole is arranged at one end of a lower cover of the air pump, which is connected with a pipe and a connecting piece to form an inflation channel; in addition, the other end of the upper cover of the air pump is provided with an air escape valve, the air escape hole is connected with the air inlet and outlet hole of the lower cover, the air escape button can be directly deflated by pressing, a compression spring is arranged in the air escape valve, and the air escape valve rebounds after hands are loosened and automatically returns to a sealing state. This kind of air pump is small, easily carries, and the TPU material environmental protection and resilience are good, and whole melt-pressure, the welding is firm, admits air and aerifys the function of ending and all set up inside the air pump, saves space, and handsome in appearance, the gas tightness is good, is worth promoting.

Drawings

FIG. 1 is a schematic view of an assembly of an air pump and a product to be inflated according to an embodiment of the present invention.

Fig. 2 is a plan view of the air pump in the embodiment of the present invention.

FIG. 3 is a cross-sectional view taken in rotation A-A of FIG. 2 in accordance with an embodiment of the present invention.

Fig. 4 is an exploded view of the air pump in the embodiment of the present invention.

Fig. 5 is a perspective view of the upper cover of the air pump in the embodiment of the present invention.

Fig. 6 is a partially enlarged view of an intake valve in the embodiment of the present invention.

FIG. 7 is a view showing a sealing state of the release button in the embodiment of the present invention.

FIG. 8 is a view showing the deflation state of the deflating button in the embodiment of the present invention.

Fig. 9 is a top view of a support hard sheet in an embodiment of the invention.

Fig. 10, bottom view of the support hard sheet in the embodiment of the invention.

Fig. 11 is a sealing diagram of the silicone non-return plug according to the embodiment of the present invention.

FIG. 12 is a top-open air intake view of the silica gel non-return plug according to the embodiment of the present invention.

The notation in the figure is: 1. a one-way intake valve; 2. an air pump main body; 3. a bleed valve assembly; 4. an air tube; 5. a connecting member; 6. a product to be aerated; 7. supporting the hard sheet; 8. a non-return plug; 9. a lower cover of the air pump; 10. an air pump upper cover; 11. a compression spring; 12. an air escape button; 13. reversing; 14. a lug support rib; 15. middle support ribs; 16. a first reinforcing rib; 17. a second reinforcing rib; 18. a raised circular ring; 19. a long boss; 20. an air inlet; 21. an air release hole; 22. a hard sheet center fixing hole; 23. air inlet and outlet holes; 24. an upper cover air inlet channel; 25. a supporting hard sheet air inlet channel; 26. the lower cover is provided with an air inlet and outlet channel; 27. an upper sealed chamber; 28. a lower sealed cavity; 29. a gas leakage gap; 30. a hard sheet air inlet; 31. A hard plate sealing surface; 32. parting surfaces of the check plugs; 33. an intake gap.

Detailed Description

The invention will be better understood from the following description of specific embodiments thereof with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1 to 12, the portable push type air pump includes an air pump main body 2, a one-way air inlet valve 1, an air release assembly 3, an air tube 4 and a connecting piece 5, wherein the air pump main body 2 includes an air pump upper cover 10, an air pump lower cover 9, a supporting hard sheet 7 and a check plug 8, and the air release assembly 3 includes a compression spring 11 and an air release button 12; the air inlet and outlet hole at one end of the air pump lower cover 9 is connected with the air pipe 4, the other end of the air pipe 4 is connected with the connecting piece 5, and the other end of the connecting piece 5 is connected with the product 6 to be inflated; the check plug 8 is arranged in a central fixing hole of the supporting hard sheet 7, the periphery of a pressing air bag of the air pump upper cover 10 is welded and sealed with the edge of the supporting hard sheet 7, the periphery of the air pump upper cover 10 is welded and sealed with the periphery of the air pump lower cover 9, the one-way air inlet valve 1 is arranged in an air inlet of a main body of the air pump upper cover 10, and the air release button 12 and the compression spring 11 are arranged in an air release hole 21 of the air pump upper cover 10.

The upper cover 10 of the air pump is made of soft TPU material; the lower cover 9 of the air pump is made of rigid TPU material; the supporting hard sheet 7 is made of hard TPU material, elastic silicon rubber or elastomer material, and the sealing surface of the non-return plug 8 is designed without a joint line, so that air leakage is not easy to occur.

The one-way air inlet valve 1 is made of PE material.

Compression spring 11 adopts 304 stainless steel matter, and the button 12 that loses heart adopts copper nickel plating or electrophoresis technology, and the button 12 lower part that loses heart is provided with the back-off structure, presses smoothly, and difficult discolours, is difficult for droing, and airtight is good.

The air pipe 4 is made of a transparent TPU pipe.

The connecting piece 5 adopts the PP material of high strength, and the design of no joint line is adopted at the both ends of connecting piece 5, designs the back-off structure, and the gas tightness is good, is difficult for droing.

As shown in fig. 4, an air inlet hole 20 is formed at one end of the air pump upper cover 10, and the one-way air inlet valve 1 is installed in the air inlet hole 20; one end of the air pump upper cover 10 is provided with an air leakage hole 21, and the air leakage component 3 is arranged in the air leakage hole 21; the supporting hardness 7 is arranged below the air pump upper cover 10, and the periphery of the supporting hard sheet 7 is welded and sealed with the periphery of the convex saccule in the middle of the air pump upper cover 10 at high frequency; the edge of the lower cover 9 of the air pump and the edge of the upper cover 10 of the air pump are sealed by high-frequency welding.

As shown in fig. 5, the upper portion of the air inlet hole 20 is provided with a reverse buckle, the diameter of the reverse buckle is smaller than the air inlet aperture and the outer diameter of the one-way air inlet valve 1, and the one-way air inlet valve 1 cannot be separated after being installed. The one-way air inlet valve 1 is very small in appearance structure, is hidden in a groove preset in the air inlet hole 20, reduces the volume of a product and increases the attractiveness. The one-way air inlet valve 1 only admits air and does not release air, and can also prevent dust and debris from entering the interior of the air pump.

As shown in fig. 10 and fig. 6, the edge and the middle of the lug area below the supporting hard sheet 7 and the air inlet hole 20 are respectively provided with a lug support rib 14 and a middle support rib 15 for supporting the bottom material of the upper cover air inlet area, so as to ensure that the upper cover is not easy to deform during extrusion, ensure that the air space of the upper cover air inlet channel 24 and the supporting hard sheet air inlet channel 25 is not reduced, and ensure that the air pump is smoothly inflated.

As shown in fig. 10 and 11, the upper part of the supporting hard plate 7 and the lower part of the non-return plug 8 are respectively provided with a plurality of first reinforcing ribs 16 and a plurality of second reinforcing ribs 17, so that the hard plate is not easy to deform, the sealing surface is kept flat, and the non-return plug 8 is well matched with the non-return plug 8 and is not easy to leak gas in the repeated extrusion and use process of the air pump. In addition, a plurality of circles of convex rings 18 are arranged in the middle of the surface, close to the inner cavity of the upper cover 10 of the air pump, of the supporting hard sheet 7, the diameter of each convex ring 18 is approximate to that of a pressing finger, and the height of the end part of the non-return plug 8 is not more than that of the convex ring 18, so that the non-return plug 8 is prevented from being extruded when the balloon is pressed, the non-return plug 8 is prevented from displacing or deforming, and sealing is influenced.

As shown in fig. 10 and 12, the center of the supporting hard plate 7 is provided with a hard plate center fixing hole 22 for assembling the non-return plug 8; four hard sheet air inlets 30 are arranged around the hard sheet central fixing hole 22. When the non-return plug 8 is deformed by pressure, it will separate from the hard plate sealing surface 31, creating an air inlet gap 33, and air will flow in through the hard plate air inlet hole 30 and the air inlet gap 33.

As shown in fig. 9, a plurality of long bosses 19 are arranged at the circumference of the circular sealing surface below the supporting hard plate 7 to support the bottom cover, and the length of the long bosses 19 is greater than the distance of the check plug 8 during inflation deformation, so that the check plug 8 has a space for sufficient deformation during inflation. In addition, the bottom cover is prevented from being extruded to the non-return plug 8 when being pressed, and the movement of the non-return plug 8 is prevented from being influenced. The tail part of the non-return plug 8 is designed to be longer, and is easy to penetrate into the central fixing hole 22 of the hard plate when being assembled with the supporting hard plate 7; the reverse buckle at the tail part of the check plug 8 is pulled out to the upper plane along the lower part of the central fixing hole 22 of the hard plate by hands or tools, and the reverse buckle of the check plug 8 is fixed on the upper plane of the central fixing hole, so that the check plug 8 is firmly fixed on the supporting hard plate by the sealing surface and the reverse buckle, and is not easy to fall off when the air pump is inflated and deflated. The fixed length of the non-return plug 8, even if the distance between the sealing surface and the inverted plane is the same as or slightly close to the thickness of the central fixing hole, the non-return plug 8 can achieve the sealing effect in a natural state. When the air bag of the product 6 to be inflated is inflated, the greater the pressure of the air bag of the product 6 to be inflated is due to the effect of the counter pressure, the better the sealing effect of the non-return plug 8 will be.

As shown in fig. 11, a non-sealing surface of the non-return plug 8 is provided with a non-return plug parting surface 32, so that the risk of influencing the sealing effect due to burrs on the non-return plug parting surface 32 is avoided.

As shown in figures 7 and 8, the lower part of the air release button 12 is provided with an inverted buckle 13, after the air release button is assembled in the air release hole 21, the diameter of the inverted buckle 13 is larger than that of the sealing hole, so that the wall thickness of the bottom of the hole is firmly buckled, and the button can not fall off when being repeatedly used. A compression spring 11 is arranged below the air release button 12, when the air release button is in an inflation and static state, because the compression spring 11 is in a compression state, a reverse force is generated to push the air release button 12 upwards, and a sealing ball below the air release button 12 is lifted upwards and is in interference fit with the air release hole 21 to achieve a sealing state; when the air is deflated, the button is pressed, the button 12 and the air-release hole form an air-release gap 29, and the air is quickly discharged.

As shown in figures 3 and 4, the air pipe 4 is slightly in interference fit with the air inlet and outlet hole 23 of the lower cover 9 of the air inflation pump and is connected by glue, so that the firmness and the air tightness are improved. The two ends of the connecting piece 5 are provided with the back buckles, and the connecting piece is not easy to fall off after the air pipe 4 or the inflatable product 6 is assembled. And the inclined planes of the two pagodas of the connecting piece 5 are integrally designed, no joint line exists, and the sealing performance is good.

As shown in fig. 3 and 4, the air pump main body 2 is composed of an upper seal chamber 27 and a lower seal chamber 28: the edge of the convex saccule in the middle of the upper cover 10 of the air pump and the edge of the supporting hard sheet 7 are welded in a high frequency way, and the periphery is sealed; the one-way air inlet valve 1 and the air inlet hole 20 are sealed in an interference manner; thereby forming an independent upper sealing cavity 27 between the upper cover 10 of the air pump and the air inlet valve 1, the supporting hard sheet 7 and the non-return plug 8 on the supporting hard sheet 7; the edge of the lower cover 9 of the air pump and the edge of the upper cover 10 of the air pump are also welded in a high frequency way, and the periphery is sealed; the air release button 12 and the air release hole 21 are sealed in an interference manner; therefore, the lower air pump cover 9, the upper air pump cover 10, the supporting hard sheet 7 connected with the upper cover 10, the upper check plug 8 on the hard sheet 7 and the lower air pump cover 9 form another independent lower sealing cavity 28.

The inflation operation flow of the air pump is as follows: pressing the protruding sacculus of air pump main part 2, inside air got into air pump main part 1 through one-way admission valve 1, gaseous passing through connecting pipe 4 and connecting piece 5, the product 6 of waiting to aerify got into, repeated pressing is so circulated, reaches the inflation effect, stops repeated pressing.

Air discharging operation flow of the air pump: pressing the air release valve 3 and not loosing the hand, the gas in the inflated product enters the inner cavity of the air pump 2 through the connecting pipe 4 and the connecting piece 5, the gas in the inner cavity is directly discharged to the external air through the air release hole, the air release valve 3 rebounds to stop releasing the air.

The working principle of the air pump is as follows:

the convex saccule in the middle of the upper cover 10 of the air pump is manually pressed, the air pressure in the upper sealing cavity 27 is increased, the air passes through 4 hard sheet air outlet holes 30 around the center of the supporting hard sheet 7 and extrudes the edge of the non-return plug 8 to form an air inlet gap 33, the upper sealing cavity 27 is communicated with the lower sealing cavity 28 at the moment, the air enters the lower sealing cavity 28, passes through the lower cover air inlet and outlet channel 26, the one-way air inlet and outlet hole 23, the air pipe 4 and the connecting piece 5 in sequence, finally enters the product 6 to be inflated, and one-time inflation action is completed. When the hand is released, the convex air bag rebounds by the elasticity of the convex air bag, the non-return plug 8 rebounds to the sealing state, and the upper sealing cavity 27 and the lower sealing cavity 28 stop the air flow.

As the upper sealing cavity 27 rebounds, the air pressure in the cavity is reduced, the air pressure outside the air pump is greater than the air pressure in the cavity, the atmosphere pushes open the one-way check sheet of the one-way air inlet valve 1, and the air flows into the upper sealing cavity 27 to complete one air suction action.

Continuously pressing the convex saccule in the middle of the upper cover 10 to continuously complete the air inflation and suction actions until the air inflation effect is achieved.

After the inflation action is stopped, the check plug 8 rebounds to a sealing state, the one-way air inlet valve 1 and the air release valve 3 are also in an interference sealing state, and the whole product is good in air tightness and does not leak air.

When in air leakage, the air leakage button 12 is pressed, a gap is formed between the air leakage button 12 and the air leakage hole 21, and air rapidly enters the lower sealing cavity 28 from the inflatable product 6 through the plastic connection 5 and the air pipe 4 and is directly exhausted to the outside of the pump body through the exhaust gap, so that the air leakage purpose is achieved.

When the release is stopped, the air release button 12 returns to the initial position to be in an interference sealing state due to the automatic rebound of the compression spring 11.

The foregoing is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications are considered to be within the scope of the present invention.

Claims

1. A portable push type air pump which is characterized in that: the air pump comprises an air pump main body, a one-way air inlet valve, an air leakage assembly, an air pipe and a connecting piece, wherein the air pump main body comprises an air pump upper cover, an air pump lower cover, a supporting hard sheet and a non-return plug; the air inlet and outlet hole at one end of the lower cover of the air pump is connected with an air pipe, the other end of the air pipe is connected with a connecting piece, and the other end of the connecting piece is connected with a product to be inflated; it is downthehole that the center fixed of supporting the hard piece is packed into to end contrary stopper, the air pump upper cover press the gasbag all around with the edge looks butt fusion and the sealing of supporting the hard piece, the air pump upper cover all around with the air pump lower cover all around looks butt fusion and sealed, one-way admission valve is packed into in the air pump upper cover main part inlet port, it is downthehole to lose heart that button and compression spring pack into the disappointing of air pump upper cover.

2. The portable pressing type air pump as claimed in claim 1, wherein: the upper cover of the air pump is made of a soft TPU material; the lower cover of the air pump is made of a hard TPU material; the supporting hard sheet is made of hard TPU material, elastic silicon rubber or elastomer material, and the sealing surface of the non-return plug is designed without a joint line; the one-way air inlet valve is made of PE material; the compression spring is made of 304 stainless steel, the air release button is made of copper nickel plating or electrophoresis technology, and a reverse buckling structure is arranged at the lower part of the air release button; the air pipe is a transparent TPU pipe; the connecting piece adopts the PP material of high strength, the both ends of connecting piece adopt no joint line design, are provided with the back-off structure.

3. The portable pressing type air pump as claimed in claim 1, wherein: one end of the air pump upper cover is provided with an air inlet hole, and the one-way air inlet valve is arranged in the air inlet hole; one end of the air pump upper cover is provided with an air leakage hole, and the air leakage assembly is arranged in the air leakage hole; the support hardness is arranged below the upper cover of the air pump, and the periphery of the support hard sheet is welded and sealed with the periphery of the convex saccule in the middle of the upper cover of the air pump in a high-frequency manner; the edge of the lower cover of the air pump and the edge of the upper cover of the air pump are welded and sealed in a high-frequency mode; the upper part of the air inlet is provided with an inverted buckle, and the diameter of the inverted buckle is smaller than the air inlet aperture and the outer diameter of the one-way air inlet valve.

4. The portable pressing type air pump as claimed in claim 1, wherein: and the edge and the middle of the lug area below the supporting hard sheet and the air inlet hole are respectively provided with a lug supporting rib and a middle supporting rib.

5. The portable pressing type air pump as claimed in claim 1, wherein: the upper part of the supporting hard sheet and the lower part of the non-return plug are respectively provided with a plurality of first reinforcing ribs and second reinforcing ribs; a plurality of circles of raised circular rings are arranged in the middle of the surface of the supporting hard sheet close to the inner cavity of the upper cover of the air pump; the center of the supporting hard sheet is provided with a hard sheet center fixing hole for assembling a non-return plug; four hard sheet air inlets are arranged around the hard sheet center fixing hole.

6. The portable pressing type air pump as claimed in claim 1, wherein: and a plurality of long bosses are arranged at the periphery of the circular sealing surface below the supporting hard sheet to prop against the bottom cover, and the length of each long boss is greater than the distance of the check plug during inflation deformation.

7. The portable pressing type air pump as claimed in claim 1, wherein: and a non-sealing surface of the non-return plug is provided with a parting surface of the non-return plug.

8. The portable pressing type air pump as claimed in claim 1, wherein: the lower part of the air escape button is provided with a back-off; and a compression spring is arranged below the air escape button.

9. The portable pressing type air pump as claimed in claim 1, wherein: the air pipe and the air inlet and outlet hole of the lower cover of the air pump are slightly in interference fit and are connected by glue at the same time; the two ends of the connecting piece are provided with reverse buckles; the two pagoda inclined planes of the connecting piece are integrally designed and have no joint line.

10. The portable pressing type air pump as claimed in claim 1, wherein: the air pump main part comprises last sealed chamber and lower sealed chamber: the edge of a convex saccule in the middle of the upper cover of the air pump is welded with the edge of the supporting hard sheet at high frequency, and the periphery of the convex saccule is sealed; the one-way air inlet valve and the air inlet hole are sealed in an interference manner; an independent upper sealing cavity is formed between the upper cover of the air pump and the air inlet valve, between the upper cover of the air pump and the air inlet valve and between the upper cover of the air pump and the air inlet; the edge of the lower cover of the air pump and the edge of the upper cover of the air pump are also welded in a high frequency mode, and the periphery of the lower cover of the air pump and the edge of the upper cover of the air pump are sealed; the air leakage button and the air leakage hole are sealed in an interference manner; the air pump lower cover, the air pump upper cover, the supporting hard sheet connected with the upper cover, the hard sheet upper stop reverse plug and the air pump lower cover form another independent lower sealing cavity.