Air pump device for portable inflatable product and portable inflatable product

Abstract

The utility model provides an air pump device for a portable inflatable product and the portable inflatable product, the air pump device comprises an annular connecting seat and an air pump assembly which is arranged in the connecting seat in a matching way, and the connecting seat is in threaded connection with the air pump assembly. A motor, an impeller and an impeller cover are sequentially arranged in an inner cavity of a shell of the air pump assembly from bottom to top, an upper cover covers an upper port of the shell, and a lower port of the shell is sealed through a one-way valve. During inflation, the motor drives the impeller to rotate, so that external air enters the air bag of the inflatable product from the one-way valve along the airflow channel, and inflation is completed. During deflation, the air pump assembly is taken out, and the air bag is pressed to exhaust air. The connecting seat can serve as a mounting base of the air pump assembly and can also serve as a deflation nozzle, the integrated design simplifies the internal structure of an inflatable product, meanwhile, the structure of an airflow channel in the air pump device is simplified, and the assembly difficulty and the production cost are reduced while the number of parts is reduced and the flow rate is met.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable products, in particular to an air pump device for portable inflatable products and a portable inflatable product with the air pump device. Background Art

[0002] An air pump refers to a gas delivery device whose working medium is gaseous and is mainly used for gas sampling, gas circulation, vacuum adsorption, vacuum pressure maintenance, air pumping, and pressurization. It is widely used in production and life.

[0003] The air pumps currently available on the market for inflatable products are generally installed in the built-in airbag of the inflatable product. They inflate when powered on, and deflate by opening the deflation nozzle set on the airbag. The airbag accommodates both the inflation pump and the deflation nozzle, and the internal structure is complex, with many components, and the assembly process is complicated, resulting in high production costs. Currently, there is also an air pump on the market that can achieve both inflation and deflation functions through a ventilation structure. However, this type of air pump has a complex air pipeline and many components that must match each other in structure. Not only is it easy to cause airflow loss and air leakage during the inflation process, resulting in slow inflation, but the complex structure also increases the difficulty and cost of production. The above problems are more prominent when the above two types of air pumps are applied to smaller portable inflatable products such as inflatable pillows. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an air pump device for a portable inflatable product, the air pump device comprising:

[0005] A connecting seat, the connecting seat is annular and the inner side wall of the connecting seat is provided with an internal thread;

[0006] An air pump assembly, comprising a cylindrical housing capable of being inserted into the connecting seat, wherein an outer wall of the housing is provided with an external thread that cooperates with the internal thread;

[0007] An inner flange is provided on the upper portion of the inner side wall of the shell, an upper cover is fixed on the inner flange, an air inlet is provided at the center of the upper cover, and the edge of the upper cover is sealed to the inner flange, an inflation component is provided in the inner cavity of the shell, an air outlet is provided at the bottom of the shell, and a one-way valve is provided at the air outlet; the air inlet, the inflation component and the air outlet are connected in sequence to form an air flow channel.

[0008] Optionally, the inflation assembly includes a motor, an impeller, and an impeller cover arranged in sequence from bottom to top; the impeller is fixedly connected to the motor shaft, and the impeller cover includes a cover plate and a side sealing ring, the cover plate and the side sealing ring respectively cover the impeller in the upper direction and the circumferential direction, and an air intake pipe is fixed upwardly to the cover plate;

[0009] The motor is fixed to the inner cavity of the shell through a motor bracket. The top of the motor bracket has a partition that fits with the lower edge of the impeller cover. The impeller cover and the partition form an air cavity. The air intake pipe is connected to the air inlet to connect the outside world with the air cavity.

[0010] Optionally, the side sealing ring is provided with a first drainage gap, and the edge of the partition is provided with a second drainage gap connected to the first drainage gap.

[0011] Optionally, the one-way valve includes a diaphragm and a connecting bolt fixed to the surface of the diaphragm, a hollow bottom bracket is fixed in the air outlet, the one-way valve is fixedly connected to the bottom bracket upward through the connecting bolt, and the diaphragm covers the air outlet.

[0012] Optionally, the outer side wall of the shell is provided with a first flange and a second flange in sequence from the upper end downward, and the second flange is located above the external thread; a first annular groove is formed between the first flange and the second flange.

[0013] Optionally, the upper surface of the first flange is covered with a sealing cover, the first ring groove is equipped with a connecting ring, and the connecting ring and the sealing cover are integrally formed and connected by a connecting belt;

[0014] The upper cover includes a cover body and an outer flange connected to the edge of the cover body. The outer flange of the upper cover falls on the inner flange of the shell, and an annular gap is formed between the cover body and the inner wall of the shell. The annular gap is used to clamp the annular ring at the bottom of the sealing cover.

[0015] Optionally, the outer contour of the first flange is elliptical and the outer side wall of the first flange is further provided with anti-slip teeth, part of the anti-slip teeth extend upward to form an operating part, and a cover groove is formed between two symmetrical operating parts, and the cover groove can accommodate the sealing cover.

[0016] Optionally, the outer wall of the shell also includes a third flange, which is located between the second flange and the external thread, and a second annular groove is formed between the second flange and the third flange. The second annular groove is provided with a sealing ring, and the inner wall of the connecting seat is provided with a supporting ring. When the shell is threadedly connected to the connecting seat, the second flange falls on the supporting ring, and the sealing ring is gasketed between the second flange and the supporting ring.

[0017] Optionally, a circuit board is fixed to the inner side of the upper cover, and a power button and a charging interface are provided on the outer side of the upper cover, and the power button and the charging interface are electrically connected to the circuit board.

[0018] The utility model also provides a portable inflatable product, which includes the air pump device. The inflatable product is provided with an opening, and the connecting seat of the air pump device is fixed at the opening of the inflatable product.

[0019] As described above, the present invention provides an air pump device for a portable inflatable product and a portable inflatable product having the air pump device. The air pump device includes an annular connecting seat and an air pump assembly that is matched to be installed in the connecting seat, and the connecting seat is threadedly connected to the air pump assembly. The inner cavity of the shell of the air pump assembly is provided with a motor, an impeller, and an impeller cover from bottom to top. The upper port cover of the shell is provided with an upper cover, and the lower port is sealed by a one-way valve. During inflation, the motor drives the impeller to rotate, so that the external air reaches the one-way valve along the air flow channel, and then enters the air bag of the inflatable product from the one-way valve to complete the inflation. During deflation, the air pump assembly is taken out, and the air bag is pressed to discharge the air. At this time, the connecting seat is used as an air release nozzle. The connecting seat serves as both a mounting base for the air pump assembly and an air release nozzle. This integrated design simplifies the structure of the inflatable product, and at the same time, the structure of the air flow channel in the air pump device is also simplified, while reducing parts and meeting flow requirements, reducing assembly difficulty and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the air pump device in Example 1 of the present utility model.

[0021] Figure 2 Shown is a schematic cross-sectional structure diagram of the air pump device in Example 1 of the present utility model.

[0022] Figure 3 Shown is a disassembled schematic diagram of the air pump assembly in Example 1 of the present invention.

[0023] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the upper cover in the first embodiment of the present utility model.

[0024] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the annular gap in Example 1 of the present utility model.

[0025] Figure 6 Shown is a disassembled schematic diagram of the upper end portion of the shell in the first embodiment of the present invention.

[0026] Figure 7 Shown is a schematic top view of the structure of the shell in the first embodiment of the present invention.

[0027] Figure 8 Shown is a schematic diagram of the three-dimensional structure of the bottom bracket in the first embodiment of the present invention.

[0028] Component number description

[0029] Air pump assembly 20; sealing cover 21; connecting base 22; sealing ring 24; housing 27; motor 29; impeller 26; impeller cover 25; circuit board 33; upper cover 31; air inlet pipe 23; air inlet 32; one-way valve 28; motor bracket 30; first flange 41; second flange 42; third flange 43; connecting ring 44; connecting belt 45; raised strip 410; bottom bracket 281; annular gap 310; first drainage gap 251; second drainage gap 261; outer flange 311; inner flange 312. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0031] For ease of explanation, when describing the embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. These schematic views are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0032] For ease of description, spatially relative terms such as "under," "below," "below," "below," "above," and "on" may be used herein to describe the relationship of one element or feature to other elements or features shown in the drawings. It will be understood that these spatially relative terms are intended to encompass orientations of the device in use or operation in addition to the orientation depicted in the drawings. Additionally, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may be present. As used herein, "between" is inclusive of both endpoints.

[0033] In the context of the present application, a structure described as a first feature being "above" a second feature may include embodiments where the first and second features are formed in direct contact, and may also include embodiments where an additional feature is formed between the first and second features, such that the first and second features may not be in direct contact.

[0034] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. The type, quantity and proportion of each component in actual implementation can be changed at will, and the component layout may also be more complicated.

[0035] Example 1

[0036] like Figures 1 to 8 As shown, this embodiment provides an air pump device for a portable inflatable product, such as an inflatable pillow, and the air pump device includes:

[0037] The connecting seat 22 is annular and has an inner sidewall provided with an internal thread; the outer edge of the connecting seat 22 is welded to the airbag opening of the inflatable product;

[0038] The air pump assembly 20 includes a cylindrical housing 27 that can be inserted into the connecting seat 22, and an outer wall of the housing 27 is provided with an external thread that cooperates with the internal thread;

[0039] The inner cavity of the shell 27 is provided with an inflation assembly, and the inflation assembly includes a motor 29, an impeller 26, and an impeller cover 25 arranged in sequence from bottom to top; the impeller 26 is fixedly connected to the rotating shaft of the motor 29, and the impeller cover 25 includes a cover plate and a side sealing ring, which cover the impeller 26 above and circumferentially respectively, and the cover plate is fixed with an air intake pipe 23 upward; the motor 29 is fixed to the inner cavity of the shell 27 through a motor bracket 30, and the top of the motor bracket 30 has a partition that fits with the lower edge of the impeller cover 25, and the impeller cover 25 and the partition form an air cavity, the side sealing ring is provided with a first drainage gap 251, and the edge of the partition is provided with a second drainage gap 261 that communicates with the first drainage gap 251.

[0040] The air inlet pipe 23 is upwardly connected to the air inlet 32 ​​of the upper cover 31 to serve as an air inlet opening. A circuit board 33 is fixed to the inner side of the upper cover 31 away from the sealing cover 21. A power button and a charging interface are provided on the outer side of the upper cover. The power button and the charging interface are electrically connected to the circuit board 33.

[0041] like Figures 4 and 5 As shown, the upper cover 31 includes a cover body and an outer flange 311 connected to the edge of the cover body, and an inner flange 312 is provided on the upper part of the inner wall of the shell. The outer flange 311 of the upper cover falls on the inner flange 312 of the shell, and an annular gap 310 is formed between the cover body of the upper cover and the inner wall of the shell. The annular gap 310 is used to clamp the annular ring at the bottom of the sealing cover 21.

[0042] The air inlet 32 ​​of the upper cover, the air inlet pipe 23 of the air pump assembly 20, the air cavity formed by the impeller cover 25 and the partition, the first drainage gap 251, the second drainage gap 261, and the gap between the motor 29 and the shell 27 together form an air flow channel. When the motor 29 is running, it drives the impeller 26 to rotate. The air entering the air cavity of the impeller cover 25 flows circumferentially into the drainage gap under the push of the impeller 26, and finally the external air reaches the air outlet at the bottom of the shell along the air flow channel and blows open the one-way valve 28, and then is discharged from the one-way valve 28 into the air bag of an inflatable product such as an inflatable pillow to complete the inflation. Figure 3 As shown, the arrows in the figure indicate the direction of airflow during inflation.

[0043] like Figures 6 and 7 As shown, the outer wall of the shell 27 is provided with a first flange 41, a second flange 42, and a third flange 43 in sequence from the upper end downward, and the third flange 43 is located above the external thread; the outer diameters of the first flange 41, the second flange 42, and the third flange 43 decrease in sequence.

[0044] The upper surface of the first flange 41 is covered with a sealing cover 21. When the air pump is not in use or after inflation is complete, the sealing cover 21 is placed on the upper surface of the first flange 41. The annular ring at the bottom of the sealing cover 21 is interference fit with the housing 27 and the upper cover 31 through the annular gap 310, sealing the air inlet 32 ​​of the upper cover, thereby providing a dust and water barrier and a secondary seal. A connecting ring 44 is installed in the first annular groove between the first flange 41 and the second flange 42. The connecting ring 44 is integrally formed with the sealing cover 21 and connected by a connecting band 45.

[0045] Furthermore, a support ring is provided on the inner sidewall of the connecting base 22. When the housing 27 is threadedly connected to the connecting base 22, the second flange 42 rests on the support ring, and the outer edge of the third flange 43 seals against the inner edge of the support ring, ensuring sealing between the air pump and the connecting base. A sealing ring 24 is provided between the second flange 42 and the support ring. In other words, the sealing ring 24 is sleeved in the second annular groove between the second flange 42 and the third flange 43. When the housing 27 is threadedly connected to the connecting base 22, as the threaded connection deepens, the second flange 42 applies downward pressure to the sealing ring 24, thereby causing the sealing ring 24 to fit tightly against the support ring.

[0046] The outer contour of the first flange 41 is elliptical, and the outer sidewall of the first flange 41 is also provided with anti-slip teeth, which provide a better anti-slip effect and make it easier for users to disassemble and assemble the air pump assembly. Furthermore, a portion of the anti-slip teeth on the outer periphery symmetrically about the elliptical axis of symmetry extend upward to form an operating portion. In this application, there are two operating portions, which are symmetrically arranged along the long axis of the ellipse. The operating portion is a raised strip 410 extending circumferentially along the first flange, and a cover plate groove is formed between the two symmetrical raised strips 410. The operating portion can increase the contact area of ​​the operating portion to facilitate the tightening operation. At the same time, the formed cover plate groove can be used to accommodate the sealing cover 21.

[0047] Further, if Figure 8 As shown, the lower end of the housing 27 is sealed by a one-way valve 28. The one-way valve 28 comprises a diaphragm and a connecting bolt fixed to the surface of the diaphragm. A hollow bottom bracket 281 is fixed to the lower end of the housing. The one-way valve 28 is fixedly connected to the bottom bracket 281 upwards via the connecting bolt, and the diaphragm seals the lower end of the housing 27. During inflation, the impact of the downward airflow causes the diaphragm to deform, forming a gap between the diaphragm and the edge of the lower end of the housing 27, allowing the airflow to escape.

[0048] When inflating, open the sealing cover 21 and press the power button to inflate. After inflation, close the sealing cover 21 for secondary sealing. When deflated, take out the air pump assembly 20 and press the airbag to expel the air. At this time, the connecting seat 22 is used as a deflation nozzle. The connecting seat 22 serves as both a mounting base for the air pump assembly 20 and a deflation nozzle. This integrated design simplifies the internal structure of the air pump, reduces parts, meets the flow rate, and reduces assembly difficulty and production costs. In addition, the air pump assembly 20 can be taken out separately and used as an external pump, which expands the usage scenario. After the air pump assembly 20 is removed and vented, the air pump assembly 20 can be stored separately to prevent it from being mixed in the airbag and causing damage.

[0049] Furthermore, a battery is provided in the gap between the motor 29 and the inner wall of the housing 27 to power the motor 29 .

[0050] Example 2

[0051] Based on the air pump device in the above-mentioned embodiment 1, this embodiment provides a portable inflatable product. Taking an inflatable pillow as an example, the inflatable pillow includes the air pump device.

[0052] The inflatable pillow specifically includes an outer shell, within which an airbag is disposed. The airbag has an opening, and the outer edge of the connecting seat of the air pump device is welded to the opening of the airbag. The airbag is inflated by the air pump assembly, and when the airbag is inflated, the outer shell expands, thereby functioning as a pillow. To deflate the airbag, the air pump assembly is unscrewed from the connecting seat, the airbag deflates, and the outer shell contracts, making it convenient for storage and carrying.

[0053] The inflatable pillow can have any shape, such as a flat pillow, a wavy pillow, a saddle pillow, or a U-shaped pillow. The outer cover can be made of a sealed, airtight material, such as rubber, plastic, or latex, and can further include a breathable layer that contacts human skin, such as cotton or gauze. This is not an overly restrictive term.

[0054] In summary, the present invention provides an air pump device for a portable inflatable product and a portable inflatable product having the air pump device. The air pump device includes an annular connecting seat and an air pump assembly that is matched to be installed in the connecting seat, and the connecting seat is threadedly connected to the air pump assembly. The inner cavity of the shell of the air pump assembly is provided with a motor, an impeller, and an impeller cover from bottom to top. The upper port cover of the shell is provided with an upper cover, and the lower port is sealed by a one-way valve. During inflation, the motor drives the impeller to rotate, so that the external air reaches the one-way valve along the air flow channel, and then enters the air bag of the inflatable product from the one-way valve to complete the inflation. During deflation, the air pump assembly is taken out, and the air bag is pressed to discharge the air. At this time, the connecting seat is used as an air release nozzle. The connecting seat serves as both a mounting base for the air pump assembly and an air release nozzle. This integrated design simplifies the structure of the inflatable product, and at the same time, the structure of the air flow channel in the air pump device is also simplified, while reducing parts and meeting flow requirements, reducing assembly difficulty and production costs.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person skilled in the art without departing from the spirit and technical concept disclosed in the present invention shall be covered by the claims of the present invention.

Claims

1. An air pump device for portable inflatable products, characterized in that: The air pump device comprises: A connecting seat, the connecting seat is annular and the inner side wall of the connecting seat is provided with an internal thread; An air pump assembly, comprising a cylindrical housing capable of being inserted into the connecting seat, wherein an outer wall of the housing is provided with an external thread that cooperates with the internal thread; An inner flange is provided on the upper portion of the inner side wall of the shell, an upper cover is fixed on the inner flange, an air inlet is provided at the center of the upper cover, and the edge of the upper cover is sealed to the inner flange, an inflation component is provided in the inner cavity of the shell, an air outlet is provided at the bottom of the shell, and a one-way valve is provided at the air outlet; the air inlet, the inflation component and the air outlet are connected in sequence to form an air flow channel.

2. The air pump device according to claim 1, characterized in that: The inflation assembly includes a motor, an impeller, and an impeller cover arranged in sequence from bottom to top; the impeller is fixedly connected to the motor shaft, and the impeller cover includes a cover plate and a side sealing ring, the cover plate and the side sealing ring respectively cover the impeller in the upper direction and the circumferential direction, and an air intake pipe is fixed upwardly to the cover plate; The motor is fixed to the inner cavity of the shell through a motor bracket. The top of the motor bracket has a partition that fits with the lower edge of the impeller cover. The impeller cover and the partition form an air cavity. The air intake pipe is connected to the air inlet to connect the outside world with the air cavity.

3. The air pump device according to claim 2, characterized in that: The side sealing ring is provided with a first drainage gap, and the edge of the partition is provided with a second drainage gap communicating with the first drainage gap.

4. The air pump device according to claim 1, characterized in that: The one-way valve includes a diaphragm and a connecting bolt fixed on the surface of the diaphragm. A hollow bottom bracket is fixed in the air outlet. The one-way valve is fixedly connected to the bottom bracket upward through the connecting bolt. The diaphragm covers the air outlet.

5. The air pump device according to claim 1, characterized in that: The outer side wall of the shell is provided with a first flange and a second flange in sequence from the upper end downward, and the second flange is located above the external thread; a first annular groove is formed between the first flange and the second flange.

6. The air pump device according to claim 5, characterized in that: The upper surface of the first flange is covered with a sealing cover, and the first ring groove is equipped with a connecting ring, which is integrally formed with the sealing cover and connected by a connecting belt; The upper cover includes a cover body and an outer flange connected to the edge of the cover body. The outer flange of the upper cover falls on the inner flange of the shell, and an annular gap is formed between the cover body and the inner wall of the shell. The annular gap is used to clamp the annular ring at the bottom of the sealing cover.

7. The air pump device according to claim 6, characterized in that: The outer contour of the first flange is elliptical and the outer side wall of the first flange is further provided with anti-slip teeth, part of the anti-slip teeth extend upward to form an operating part, and a cover plate groove is formed between two symmetrical operating parts, and the cover plate groove can accommodate the sealing cover.

8. The air pump device according to claim 5, characterized in that: The outer side wall of the shell also includes a third flange, which is located between the second flange and the external thread. A second annular groove is formed between the second flange and the third flange. The second annular groove is provided with a sealing ring. The inner side wall of the connecting seat is provided with a supporting ring. When the shell is threadedly connected to the connecting seat, the second flange falls on the supporting ring, and the sealing ring is gasketed between the second flange and the supporting ring.

9. The air pump device according to claim 1, characterized in that: A circuit board is fixed on the inner side of the upper cover, and a power button and a charging interface are provided on the outer side of the upper cover. The power button and the charging interface are electrically connected to the circuit board.

10. A portable inflatable product, characterized by: The inflatable product comprises the air pump device according to any one of claims 1 to 9, the inflatable product is provided with an opening, and the connecting seat of the air pump device is fixed at the opening of the inflatable product.

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