An air pump built-in and inflating product

Abstract

The application relates to the field of air pumps, and provides an embedded air pump and an air-filled product. The embedded air pump comprises a mounting shell which is mounted on the surface of the air-filled product, a mounting groove is arranged on the side of the mounting shell close to the inside of the air-filled product, an air inlet and outlet hole is arranged in the mounting groove, the air inlet and outlet hole is used for connecting the outside of the air-filled product with the mounting groove, a mounting seat is rotationally connected in the mounting groove, a fan is mounted on the mounting seat, the mounting seat is provided with an air hole used for connecting the mounting groove with the inside of the air-filled product, a direction adjusting knob is rotationally mounted on the mounting shell and pivotally connected with the mounting seat, and a cover assembly is used for opening or closing the air inlet and outlet hole. The air-filled product comprises the above-mentioned embedded air pump. The application is ingenious in design, simple in structure, convenient to assemble, and the air flow direction can be changed through the rotation of the direction adjusting knob.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air pumps, and further relates to an air pump built-in and an air-filled product. BACKGROUND

[0002] Air-filled products are more and more popular among consumers due to their small size, easy to carry and store, etc. The air-filled products on the market, such as air-filled mattresses, air-filled beds, air-filled sofas, air-filled pillows, air-filled footrests and air-filled toys, are mostly formed by welding PVC or PU adhesive tapes through high-frequency hot melting, and the air-filled products can be converted into various specific states by inflating the cavity through the air valve. Many years ago, air-filled products were mostly inflated by manual air pumps and foot-operated air pumps, which not only took a long time to inflate but also consumed a lot of physical strength. After that, external electric air pumps appeared, which greatly saved physical strength, but the electric air pump had to be held by hand and the air nozzle had to be aimed at the air valve of the air-filled product. The air-filled products inflated and deflated through the air valve were also time-consuming and laborious. At present, some air-filled mattresses and air-filled beds on the market begin to use built-in electric air pumps fixedly installed on the air-filled mattresses or air-filled beds. The relatively new built-in electric air pumps have air passage switching devices, which can conveniently switch between inflation, deflation and stop state. However, these built-in electric air pumps have defects such as complex structure, many parts, too large size and high manufacturing cost. SUMMARY

[0003] In order to solve the above problems, the present application provides an air pump built-in and an air-filled product, which are ingenious in design, simple in structure, easy to assemble, and can change the airflow direction by rotating the direction-adjusting knob. The technical scheme adopted by the present application is as follows:

[0004] An air pump built-in for an air-filled product, comprising:

[0005] A mounting shell mounted on the surface of the air-filled product, wherein one side of the mounting shell close to the inside of the air-filled product is provided with a mounting groove, and the mounting groove is provided with an air inlet and outlet hole for communicating the outside of the air-filled product with the mounting groove;

[0006] A mounting seat rotatably connected in the mounting groove;

[0007] A fan mounted on the mounting seat, and the mounting seat is provided with an air hole for communicating the mounting groove with the inside of the air-filled product;

[0008] A direction-adjusting knob rotatably mounted on the mounting shell and pivotally connected with the mounting seat;

[0009] A cover assembly for opening or closing the air inlet and outlet hole;

[0010] In the air intake state, the direction adjusting knob is rotated to drive the mounting base to rotate, the air inlet surface of the fan can be directed to the mounting slot, the cover assembly is opened, and the air pump can inflate the inflatable product;

[0011] In the closed state, the cover assembly closes the air inlet and outlet hole;

[0012] In the air exhaust state, the direction adjusting knob is rotated to drive the mounting base to rotate, the air inlet surface of the fan can be directed to the inside of the inflatable product, the cover assembly is opened, and the air pump can exhaust the inflatable product.

[0013] The application has a clever design, a simple structure, and is easy to assemble. The airflow direction can be changed by rotating the direction adjusting knob.

[0014] In some embodiments, a micro switch is further included, which is linked with the direction adjusting knob and electrically connected with the fan, so that the rotation of the direction adjusting knob can control the opening and closing of the fan.

[0015] The linkage of the micro switch and the direction adjusting knob enables the micro switch to be opened or closed synchronously when the direction adjusting knob is rotated, and the micro switch does not need to be operated separately, thereby saving the operation procedure.

[0016] In some embodiments, two opposite mounting shafts are radially protruded on the outer periphery of the mounting base, and two through mounting holes for mounting the mounting shafts are arranged on the inner wall of the mounting slot.

[0017] The direction adjusting knob is pivotally connected with one of the mounting shafts.

[0018] The mounting shaft is exposed to the mounting hole, and two opposite switch triggering protrusions are arranged on the outer periphery of the exposed section of the mounting shaft, so that when the direction adjusting knob is rotated to drive the mounting shaft to rotate, the switch triggering protrusions on the mounting shaft can press the micro switch to control the opening and closing of the micro switch.

[0019] The press or release of the micro switch by the switch triggering protrusions on the mounting shaft enables the micro switch to switch between the open and closed states. This micro switch control structure has a clever design, a simple structure, and stable control.

[0020] In some embodiments, the mounting shaft is a hollow shaft, the mounting base is provided with a threading hole near the side of the motor bottom end of the fan, the threading hole is in communication with the inner hole of the hollow shaft, and the threading hole and the inner hole of the hollow shaft are used for threading the electric wire connected with the micro switch and the fan.

[0021] The electric wire of the fan is arranged in the hollow shaft and the threading hole, so that the mounting base does not interfere with the electric wire of the fan when rotating, and the connection of the electric wire is stable.

[0022] In some embodiments, the air inlet and outlet hole is provided with an annular concave surface near the opening periphery of the interior of the inflatable product;

[0023] The mounting base is provided with a blocking cap, and the convex surface of the blocking cap is adapted to the annular concave surface;

[0024] In the closed state, the direction adjusting knob is rotated to drive the mounting base to rotate, and the convex surface of the blocking cap can be fitted with the annular concave surface to block the air inlet and outlet hole.

[0025] By arranging the annular concave surface and the convex surface, the air inlet and outlet hole can be sealed in the closed state to prevent gas leakage in the inflatable product.

[0026] In some embodiments, a flow guide cover is further included, which is arranged on the windward surface of the fan, one end of the flow guide cover is mounted on the mounting base, and the other end of the flow guide cover is provided with an annular convex surface adapted to the annular concave surface;

[0027] In the air inlet state, the direction adjusting knob is rotated to drive the mounting base to rotate, and the annular convex surface of the flow guide cover can be fitted with the annular concave surface.

[0028] By arranging the flow guide cover between the mounting base and the air inlet and outlet hole, the disturbance effect near the air inlet and outlet hole in the mounting groove can be weakened, so that the gas is more easily introduced or discharged from the inflatable product.

[0029] In some embodiments, a protective cover is further included, which is arranged on the outer periphery of the mounting base.

[0030] By arranging the protective cover, the fan on the mounting base can be protected to prevent the fan from being squeezed when the inflatable product is squeezed, and the protective cover can also provide support for the mounting base to prevent the inner bag of the inflatable product from hindering the rotation of the mounting base and the introduction or discharge of gas.

[0031] In some embodiments, the cover assembly is a rotary knob cover.

[0032] Alternatively, the cover assembly is a baffle, and the air inlet and outlet hole is provided with a clamping groove for inserting the baffle.

[0033] In some embodiments, the direction adjusting knob is rotatably connected to the mounting shell through a rotating shaft, the rotating shaft is provided with a limiting protrusion, and the mounting shell is provided with a limiting sliding groove adapted to the limiting protrusion, so that the rotation angle of the direction adjusting knob can be limited by the cooperation of the limiting sliding groove and the limiting protrusion.

[0034] In another aspect, the application provides an inflatable product comprising the built-in air pump.

[0035] The built-in air pump and the inflatable product provided by the application have at least the following beneficial effects:

[0036] 1. The built-in air pump and the inflatable product provided by the application are ingeniously designed, simple in structure, and convenient to assemble, and the airflow direction can be changed by rotating the direction-adjusting knob.

[0037] 2. The built-in air pump and the inflatable product provided by the application are provided with a microswitch and a direction-adjusting knob in linkage, so that the microswitch can be controlled to be turned on or off synchronously when the direction-adjusting knob is rotated, and the microswitch does not need to be operated separately, thereby saving the operation procedure.

[0038] 3. The built-in air pump and the inflatable product provided by the application are provided with a switch-actuating protrusion on the mounting shaft to press or release the microswitch, so as to switch the state of the microswitch. The microswitch control structure is ingeniously designed, simple in structure, and stable in control.

[0039] 4. The built-in air pump and the inflatable product provided by the application are provided with a hollow shaft and a wire hole, so that the electric wire of the fan is arranged in the hollow shaft and the wire hole, and the rotation of the mounting seat will not interfere with the electric wire connected to the fan, thereby ensuring the stable connection of the electric wire.

[0040] 5. The built-in air pump and the inflatable product provided by the application are provided with an annular concave surface and a convex surface, so that the inlet and outlet holes can be sealed in a closed state, thereby preventing the gas in the inflatable product from leaking.

[0041] 6. The built-in air pump and the inflatable product provided by the application are provided with a flow guide cover between the mounting seat and the inlet and outlet holes, so as to weaken the disturbance effect of the inlet and outlet holes in the mounting groove, and make the gas more easily enter or exit the inflatable product.

[0042] 7. The built-in air pump and the inflatable product provided by the application are provided with a protective cover to protect the fan on the mounting seat from being pressed when the inflatable product is pressed, and the protective cover can also support the mounting seat to prevent the inner container of the inflatable product from hindering the rotation of the mounting seat and the entry or exit of the gas. BRIEF DESCRIPTION OF DRAWINGS

[0043] The above-mentioned features, technical characteristics, advantages and implementation modes of the built-in air pump and the inflatable product will be further described in the following in a clear and easy-to-understand manner in combination with the preferred embodiments and the accompanying drawings:

[0044] Figure 1 is a schematic diagram of the overall structure of the embodiment of the application;

[0045] Figure 2 is another angle of the overall structure of the embodiment of the present application;

[0046] Figure 3 is another angle of the overall structure of the embodiment of the present application;

[0047] Figure 4 is an exploded view of the overall structure of the embodiment of the present application;

[0048] Figure 5 is a cross-sectional view of the overall structure of the embodiment of the present application;

[0049] Figure 6 is an exploded view of the mounting seat, the fan and the flow guide cover in the embodiment of the present application;

[0050] Figure 7 is an exploded view of the mounting seat, the fan and the flow guide cover in the embodiment of the present application;

[0051] Figure 8 is a structure schematic view of the direction adjusting knob in the embodiment of the present application;

[0052] Figure 9 is a structure schematic view of the limiting sliding slot in the embodiment of the present application;

[0053] Figure 10 is a structure schematic view of the overall structure of another embodiment of the present application.

[0054] Explanation of reference numerals:

[0055] mounting shell 1, clamping slot 11, limiting sliding slot 12, mounting slot 2, air inlet and exhaust hole 21, annular concave surface 211, mounting hole 22, threading hole 23, mounting seat 3, air vent 31, mounting shaft 32, switch touch protrusion 321, inner hole 322, sealing cap 33, convex surface 331, fan 4, motor 41, impeller 42, direction adjusting knob 5, rotating shaft 51, limiting protrusion 511, cover assembly 6, micro switch 7, flow guide cover 8, annular convex surface 81, protective cover 9. DETAILED DESCRIPTION

[0056] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0057] For simplicity and concision of the drawings, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one" in some cases.

[0058] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0059] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0060] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0061] Reference to the drawings Figures 1 to 5 The present application provides an internal air pump for inflatable products, comprising:

[0062] The mounting shell 1 is mounted on the surface of the inflatable product, and the mounting groove 2 is arranged on the side close to the inside of the inflatable product. The air inlet and outlet hole 21 is arranged in the mounting groove 2, which is used to communicate the outside of the inflatable product with the mounting groove 2;

[0063] The mounting seat 3 is rotatably connected in the mounting groove 2;

[0064] The fan 4 is mounted on the mounting seat 3, and the mounting seat 3 is provided with an air hole 31 for communicating the mounting groove 2 and the inside of the inflatable product;

[0065] The direction adjusting knob 5 is rotatably mounted on the mounting shell 1 and pivotally connected with the mounting seat 3;

[0066] The cover assembly 6 is used to open or close the air inlet and outlet hole 21;

[0067] In the air inlet state, the direction adjusting knob 5 is rotated to drive the mounting seat 3 to rotate, so that the windward surface of the fan 4 can face the mounting groove 2, the cover assembly 6 is opened, and the air pump can inflate the inflatable product;

[0068] Closed state, the cover assembly 6 closes the exhaust hole 21;

[0069] Exhaust state, rotating the direction-adjusting knob 5 drives the mounting base 3 to rotate, the windward surface of the fan 4 can face the inside of the inflatable product, the cover assembly 6 is opened, and the air pump can exhaust the inflatable product.

[0070] In the embodiment, the outer periphery of the mounting base 3 is in contact with the inner wall of the mounting groove 2, and the air hole 31 on the mounting base 3 is the only passage connecting the exhaust hole 21 and the inside of the inflatable product. It can be understood that in this way, the inflation or exhaust efficiency can be improved. In the embodiment, the fan 4 refers to the whole composed of the motor 41 and the impeller 42, and the impeller 42 is installed on the motor 41. The whole design of the application is ingenious, simple in structure, and convenient to assemble. The change of the airflow direction can be realized by rotating the direction-adjusting knob 5.

[0071] Referring to the drawings Figure 1 , Figures 3 to 7 In one embodiment, the micro switch 7 is further included, the micro switch 7 is arranged in linkage with the direction-adjusting knob 5, and the micro switch 7 is electrically connected with the fan 4, so that the rotation of the direction-adjusting knob 5 can control the opening and closing of the fan 4.

[0072] In the embodiment, the linkage of the micro switch 7 and the direction-adjusting knob 5 makes the rotation of the direction-adjusting knob 5 be able to synchronously control the opening and closing of the micro switch 7, and the micro switch 7 does not need to be operated separately, thereby saving the operation procedure.

[0073] Referring to the drawings Figure 1 , Figures 3 to 7 In one embodiment, two opposite mounting shafts 32 are arranged on the outer periphery of the mounting base 3 in a radial direction, and two through mounting holes 22 for mounting the mounting shafts 32 are arranged on the inner wall of the mounting groove 2.

[0074] The direction-adjusting knob 5 is pivotally connected with one of the mounting shafts 32.

[0075] The mounting shaft 32 is exposed to the mounting hole 22, and two opposite switch-actuating protrusions 321 are arranged on the outer periphery of the exposed section of the mounting shaft 32, so that when the direction-adjusting knob 5 is rotated to drive the mounting shaft 32 to rotate, the switch-actuating protrusions 321 on the mounting shaft 32 can press the micro switch 7 to control the opening and closing of the micro switch 7.

[0076] In the embodiment, the switching of the micro switch 7 is realized by the pressing or releasing of the micro switch 7 by the switch triggering protrusion 321 on the mounting shaft 32. The control structure of the micro switch 7 is ingenious, simple in structure, and stable in control. For example, in the closed state, the position of the direction adjusting knob 5 is such that the switch triggering protrusion 321 does not press the micro switch 7, and the fan 4 does not work. In the air intake state, the direction adjusting knob 5 is rotated so that one switch triggering protrusion 321 presses the micro switch 7, and the fan 4 starts to work in air charging. In the air exhaust state, the direction adjusting knob 5 is rotated so that the other switch triggering protrusion 321 presses the micro switch 7, and the fan 4 starts to work in air exhaust. In other embodiments, the switch triggering protrusion 321 can also be arranged at other positions, for example, the switch triggering protrusion 321 is arranged on the direction adjusting knob 5 and arranged along the circumference thereof, and the micro switch 7 is arranged around the periphery of the direction adjusting knob 5 and corresponds to the switch triggering protrusion 321. The specific position of the switch triggering protrusion 321 is not limited in the present application.

[0077] Referring to the drawings Figure 4 , Figure 5 , Figure 7 In one embodiment, the mounting shaft 32 is a hollow shaft, and the mounting base 3 is provided with a threading hole 23 near the side of the bottom end of the motor 41 of the fan 4, and the threading hole 23 is in communication with the inner hole 322 of the hollow shaft. The threading hole 23 and the inner hole 322 of the hollow shaft are used for threading the electric wire connected to the micro switch 7 and the fan 4.

[0078] In the embodiment, by threading the electric wire of the fan 4 in the hollow shaft and the threading hole 23, the rotation of the mounting base 3 does not interfere with the electric wire connected to the fan 4, and the connection of the electric wire is stable.

[0079] Referring to the drawings Figure 1 , Figures 3 to 7 In one embodiment, the air intake and exhaust hole 21 is provided with an annular concave surface 211 near the opening periphery inside the air charging product; the mounting base 3 is provided with a plugging cap 33 on the outer periphery, and the side away from the mounting base 3 is provided with a convex surface 331 matched with the annular concave surface 211; in the closed state, the direction adjusting knob 5 is rotated to drive the mounting base 3 to rotate, and the convex surface 331 of the plugging cap 33 can be attached to the annular concave surface 211 to plug the air intake and exhaust hole 21.

[0080] In the embodiment, by arranging the annular concave surface 211 and the convex surface 331, the air intake and exhaust hole 21 can be further sealed in the closed state, the sealing property of the air charging product is improved, and the leakage of the gas in the air charging product is prevented. In other embodiments, after the plugging cap 33 is arranged, the cover assembly 6 is not needed, and in the closed state, only the plugging cap 33 is used to seal the air intake and exhaust hole 21, and the process and materials for arranging the cover assembly 6 are saved.

[0081] Referring to the drawingsFigures 4 to 7 In one embodiment, a fairing 8 is further included, which is arranged on the windward surface of the fan 4, one end of the fairing 8 is mounted on the mounting seat 3, and the other end of the fairing 8 is provided with an annular convex surface 81 which is adapted to the annular concave surface 211; in the air intake state, the rotating direction adjusting knob 5 drives the mounting seat 3 to rotate, and the annular convex surface 81 of the fairing 8 can be attached to the annular concave surface 211.

[0082] In the present embodiment, by arranging the fairing 8 between the mounting seat 3 and the air inlet and outlet hole 21, the disturbance effect near the air inlet and outlet hole 21 in the mounting groove 2 can be weakened, so that the gas is more easily introduced or discharged into the inflatable product.

[0083] Referring to the drawings of the specification Figure 1 , Figure 4 , Figure 5 , Figure 10 In one embodiment, a protective cover 9 is further included, which is arranged on the outer periphery of the mounting seat 3. In the present embodiment, by arranging the protective cover 9, the fan 4 on the mounting seat 3 can be protected, preventing the fan 4 from being squeezed when the inflatable product is squeezed, and in addition, the protective cover 9 can also provide support for the mounting seat 3, preventing the inner bag of the inflatable product from hindering the rotation of the mounting seat 3 and the entry or discharge of gas.

[0084] Referring to the drawings of the specification Figure 10 In one embodiment, the cover assembly 6 is a knob cover.

[0085] Referring to the drawings of the specification Figure 9 In one embodiment, the cover assembly 6 is a baffle, and the outer side of the air inlet and outlet hole 21 is provided with a clamping groove 11 for inserting the baffle.

[0086] Referring to the drawings of the specification Figure 8 , Figure 9 In one embodiment, the direction adjusting knob 5 is rotatably connected to the mounting shell 1 through a rotating shaft 51, the outer periphery of the rotating shaft 51 is provided with a limiting protrusion 511, and the mounting shell 1 is provided with a limiting sliding groove 12 which is adapted to the limiting protrusion 511, so that the rotation angle of the direction adjusting knob 5 can be limited by the cooperation of the limiting sliding groove 12 and the limiting protrusion 511.

[0087] In the present embodiment, by arranging the limiting protrusion 511 and the limiting sliding groove 12, the rotation angle of the direction adjusting knob 5 can be limited, so that the direction adjusting knob 5 can only reciprocate within a predetermined angle range, avoiding excessive rotation of the direction adjusting knob 5, so that the air passage can be kept smooth in the air intake state or the air discharge state. On the other hand, when the fan 4 is connected to the wire, limiting the rotation angle of the direction adjusting knob 5 can avoid the wire being twisted in one direction all the time, preventing the wire from loosening or even falling off.

[0088] In one embodiment, the present application provides an inflatable product, which comprises the above-mentioned built-in air pump.

[0089] In the embodiment, the air intake state and the air exhaust state of the aerated product are switched conveniently, and the air tightness of the built-in air pump is good.

[0090] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the application, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principles of the application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the application.

Claims

1. A built-in air pump for inflating products, characterized in that, The application relates to an air inflating product, which comprises the following parts: an installation shell installed on the surface of the air inflating product, wherein one side of the installation shell close to the inside of the air inflating product is provided with an installation groove, and an air inlet and outlet hole is arranged in the installation groove, the air inlet and outlet hole is used for connecting the outside of the air inflating product with the installation groove, and a ring-shaped concave surface is arranged on the opening periphery of the air inlet and outlet hole close to the inside of the air inflating product; an installation base rotatably connected in the installation groove, wherein an airtight cap is arranged on the outer periphery of the installation base, and a convex surface matched with the ring-shaped concave surface is arranged on the side of the airtight cap away from the installation base; a fan installed on the installation base, wherein a ventilation hole for connecting the installation groove with the inside of the air inflating product is arranged on the installation base; a direction adjusting knob rotatably installed on the installation shell and pivotally connected with the installation base; a cover assembly used for opening or closing the air inlet and outlet hole; an air inlet state, wherein the direction adjusting knob is rotated to drive the installation base to rotate, the windward surface of the fan can face the installation groove, the cover assembly is opened, and the fan can inflate the air inflating product; an air outlet state, wherein the direction adjusting knob is rotated to drive the installation base to rotate, the convex surface of the airtight cap can be matched with the ring-shaped concave surface to close the air inlet and outlet hole, and the cover assembly closes the air inlet and outlet hole; an air outlet state, wherein the direction adjusting knob is rotated to drive the installation base to rotate, the windward surface of the fan can face the inside of the air inflating product, the cover assembly is opened, and the fan can deflate the air inflating product.

2. An internal air pump according to claim 1, wherein A micro switch is further arranged, the micro switch is connected with the direction adjusting knob, and the micro switch is electrically connected with the fan, so that the fan can be controlled to be turned on or off by rotating the direction adjusting knob.

3. An internal air pump according to claim 2, wherein Two opposite installation shafts are arranged on the outer periphery of the installation base in a radial direction, and two through installation holes for installing the installation shafts are arranged on the inner wall of the installation groove; the direction adjusting knob is pivotally connected with one of the installation shafts; the installation shaft is exposed to the installation hole, and two opposite switch triggering protrusions are arranged on the outer periphery of the exposed section of the installation shaft, so that when the direction adjusting knob is rotated to drive the installation shaft to rotate, the switch triggering protrusions on the installation shaft can press the micro switch to control the micro switch to be turned on or off.

4. An internal air pump according to claim 3, wherein The installation shaft is a hollow shaft, one side of the installation base close to the bottom end of the motor of the fan is provided with a threading hole, the threading hole is communicated with the inner hole of the hollow shaft, and the threading hole and the inner hole of the hollow shaft are used for threading an electric wire connected with the micro switch and the fan.

5. The internal air pump of claim 1, wherein, A flow guide cover is further arranged, the flow guide cover is arranged on the windward surface of the fan, one end of the flow guide cover is installed on the installation base, and a ring-shaped convex surface matched with the ring-shaped concave surface is arranged on the opening periphery of the other end of the flow guide cover; in the air inlet state, the direction adjusting knob is rotated to drive the installation base to rotate, and the ring-shaped convex surface of the flow guide cover can be matched with the ring-shaped concave surface.

6. An internal air pump according to claim 1, wherein A protective cover is further arranged on the outer periphery of the installation base.

7. An internal air pump according to claim 1, wherein The cover assembly is a knob cover. Alternatively, the cover assembly is a baffle, and a clamping groove for inserting the baffle is arranged on the outer side of the air inlet and outlet hole.

8. An internal air pump according to any one of claims 1-7, characterized in that The direction adjusting knob is rotationally connected with the mounting shell through a rotating shaft, a limiting protrusion is arranged on the outer periphery of the rotating shaft, and the mounting shell is provided with a limiting sliding groove matched with the limiting protrusion, so that the rotating angle of the direction adjusting knob can be limited through the cooperation of the limiting sliding groove and the limiting protrusion.

9. An aerated product characterised in that, The built-in air pump comprises a pump body, a pump head, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover, a pump cover,

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