CN219605608U

CN219605608U - Air pump device and inflation equipment thereof

Info

Publication number: CN219605608U
Application number: CN202320672633.1U
Authority: CN
Inventors: 刘应安
Original assignee: Guangxi Simei Industrial Co ltd
Current assignee: Guangxi Simei Industrial Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-29
Anticipated expiration: 2033-03-30

Abstract

The air pump device and inflation equipment of this disclosure include: the device comprises a device body, a first knob, a second knob, and an inflation and deflation assembly. The first knob is provided with an air outlet part which is communicated with/isolated from the accommodating cavity along with the change of the self-movement position, and the second knob is provided with an air charging part which is communicated with/isolated from the accommodating cavity along with the change of the self-movement position; the air release component is driven by the first knob to switch the first air passage of the air release component to be communicated with the accommodating cavity or the air inlet part; the inflation assembly is driven by the second knob to switch the second air passage of the inflation assembly to be communicated with or isolated from the accommodating cavity; the first knob and the second knob are operated to enable the switching air port to be communicated with the air outlet part and the second air passage to be communicated with the accommodating cavity, so that an air discharging passage from the air suction part to the air outlet part through the third air passage is formed, or when the second air passage is isolated from the accommodating cavity and the first air passage is communicated with the air inlet part, an air charging passage from the air charging part to the air inlet part through the third air passage is formed. The device is used in the air charging and discharging operation, and has the advantages of simple, compact and small structure, good reliability and efficiency.

Description

Air pump device and inflation equipment thereof

Technical Field

The present disclosure relates to the field of air pump technologies, and in particular, to an air pump device and an air inflation apparatus thereof.

Background

The existing built-in air pump structure may be complicated. The complex structure causes problems of increased cost and reliability (e.g., air tightness) and efficiency loss. For example, the complex construction of air pumps creates air lines and many components that must be structurally matched to one another, often resulting in significant air flow losses and leakage during inflation, which results in slow inflation. In addition, the existing built-in air pump is respectively provided with a set of parts corresponding to different states of air discharge and air charge, so that the set of parts is idle when the air pump is used, the air pump is large in size, and the air charge and discharge efficiency is reduced.

Disclosure of Invention

In view of the above-described drawbacks of the related art, an object of the present disclosure is to provide an air pump device and an air inflation apparatus thereof, which solve the problems in the related art.

A first aspect of the present disclosure provides an air pump apparatus applied to an air inflating device having a device air bag, comprising: the device comprises a device body, a first knob, a second knob, a deflation component and an inflation component; the device body has a receiving chamber for receiving the deflation assembly and the inflation assembly, and is formed with a housing comprising: an air suction part and an air inlet part of the equipment air bag are communicated; a third air passage communicating the deflation assembly and the inflation assembly; a fourth air passage which is communicated with the air inlet part and is communicated with the first air passage in an openable and closable manner; and a fifth air passage communicating the accommodation chamber and the third air passage; the first knob and the second knob are arranged in the accommodating cavity in a penetrating or far-away relative motion manner; the first knob is provided with an air outlet part which is used for switching the communication/isolation state between the first knob and the accommodating cavity along with the change of the self-movement position, the second knob is provided with an air charging part which is used for switching the communication/isolation state between the second knob and the accommodating cavity along with the change of the self-movement position, and the air outlet part and the air charging part are also communicated with the outside; the air discharging component is provided with a first air passage communicated with the third air passage, and is driven by a first knob to switch the first air passage to be communicated with the accommodating cavity or the air inlet part; wherein the air bleed assembly is configured such that the communication/isolation state between the first air passage and the accommodation chamber is the same as the communication/isolation state between the air outlet and the accommodation chamber; the inflation assembly is provided with a second air passage communicated with the air suction part, and is driven by a second knob to switch the second air passage to be communicated with or isolated from the accommodating cavity; wherein the inflation assembly is configured to differentiate a communication/isolation state between the second air passage and the accommodation chamber from a communication/isolation state between the inflation portion and the accommodation chamber; when the first knob drives the air discharging component to enable the first air channel to be communicated with the air outlet part, and the second knob drives the air charging component to enable the second air channel to be communicated with the accommodating cavity, an air discharging passage of the air sucking part, the second air channel, the fifth air channel, the third air channel and the first air channel to the air outlet part for the equipment air bag is formed; when the second knob drives the inflation assembly to isolate the second air passage from the accommodating cavity and the first knob drives the deflation assembly to communicate the first air passage with the air inlet part, an inflation passage of the inflation part, the fifth air passage, the third air passage, the first air passage and the fourth air passage to the air inlet part for inflating the equipment air bag is formed.

In an embodiment of the first aspect, the device body includes a pump housing, a cover plate, a partition plate, and a bottom plate; the pump shell is provided with a first end part, a second end part and a space, wherein the first end part and the second end part are arranged along the extending direction; the first end part is provided with a first ventilation part communicated with the accommodating cavity and a second ventilation part communicated with the accommodating cavity; the cover plate is arranged at the first end part of the pump shell, a first knob is arranged corresponding to the first ventilation part in a penetrating way, and a second knob is arranged corresponding to the second ventilation part in a penetrating way; the first knob and the second knob are respectively guided by the first ventilation part and the second ventilation part to do movement which goes deep or far away from the pump shell when rotating; the first sealing piece is used for enclosing a first separation cover which isolates the air outlet part from the first ventilation part with the first knob when the first knob goes deep into the press-contact pump shell along with the first knob; the second sealing piece is arranged at one end of the second knob, which faces the pump shell, and is used for enclosing a second isolation cover which isolates the inflating part from the second ventilation part with the second knob when the second sealing piece is in deep contact with the pump shell along with the second knob; the partition plate and the bottom plate are overlapped at the second end part from near to far; the accommodating cavity is defined between the partition plate and the pump shell; the third air passage is formed in the cavity between the partition plate and the bottom plate; the partition plate is provided with the air suction part and an intermediate ventilation part which is communicated with the accommodating cavity and the third air passage to form the fifth air passage; the air inlet part penetrates through the bottom plate and the partition plate.

In an embodiment of the first aspect, the cover plate is provided with a first penetrating part corresponding to the first knob and a second penetrating part corresponding to the second knob; the wall surface of the first through part corresponding to the side surface of the first knob is provided with a first guide groove which is close to the pump shell along the rotation circumferential direction and a first limit part which is communicated with one end of the first guide groove which is close to the pump shell, and the side surface of the first knob is provided with a first limit block which is clamped with the first guide groove and can move along the first guide groove along with rotation; the wall surface of the second penetrating part corresponding to the side surface of the second knob is provided with a second guide groove which is close to the pump shell along the rotation circumferential direction and a second limiting part which is communicated with one end of the second guide groove which is close to the pump shell, and the side surface of the second knob is provided with a second limiting block which is clamped with the second guide groove and can move along the second guide groove along with rotation.

In an embodiment of the first aspect, the deflation assembly comprises: one end of the first telescopic piece is connected with the first knob, the opposite end of the first telescopic piece forms a second ventilation opening, and the side wall of the first telescopic piece is provided with a switching air opening; the switching air port is communicated with the second air port to form a first air passage; a first sleeve having opposite first and second open ends, and an interior space extending through the first and second open ends; the first sleeve part penetrates through the partition board to enable the second open end to be closely communicated with the third air passage, and the first open end is communicated with the accommodating cavity; the first open end is used for the first telescopic piece to extend into the inner space of the first telescopic piece, and the second open end is communicated with the second ventilation opening; the first sleeve is provided with a third air outlet communicated with the second open end and the air inlet part; when the first telescopic piece is positioned at a first telescopic position, the switching air port is communicated with the accommodating cavity, and the side wall of the first telescopic piece blocks the third air port to isolate the switching air port from the air inlet part; when the first telescopic piece is in the second telescopic position, the switching air port is communicated with the third air port so as to be communicated with the air inlet part.

In an embodiment of the first aspect, the first telescoping member comprises: one end of the first connecting rod is connected with the first knob in a positioning way; the first sleeve body is sleeved with the first sleeve member in a telescopic fit manner and is provided with a first end and a second end which are opposite; the first end is fixedly connected with the other end of the first connecting rod, the second end forms the second ventilation opening, and the switching air opening is arranged at one end close to the first connecting rod; the first sleeve joint body is further provided with a first guide connection part, the inner wall surface of the first end of the first guide connection part extends towards the bottom plate along the extending direction, the bottom plate is provided with a second guide connection part corresponding to the first shaft sleeve, and the first guide connection part and the second guide connection part are used for being sleeved with two ends of a first reset spring in a butt joint mode.

In an embodiment of the first aspect, the inflation assembly comprises: one end of the second telescopic piece is connected with the second knob; the second sleeve member is provided with a third open end, a fourth open end and an inner space communicated with the third open end and the fourth open end, the third open end can be opened and closed for the other end of the second telescopic member to extend into the inner space of the second telescopic member, and the fourth open end is communicated with the air suction part to form the second air passage; when the second telescopic piece is positioned at a third telescopic position, the second telescopic piece plugs the third open end to isolate a passage from the air suction part to the accommodating cavity through the second air passage; when the second telescopic piece is in the fourth telescopic position, the air suction part is conducted to the passage from the second air passage to the accommodating cavity.

In an embodiment of the first aspect, the second telescoping member comprises: one end of the second connecting rod is fixedly connected with a second knob; the plug part is formed at the other end of the second connecting rod and used for plugging the third open end; the second connecting rod is sleeved with a second reset spring, and two ends of the second reset spring are respectively abutted against the second knob and the surface of the pump shell in the device body.

In an embodiment of the first aspect, the air inlet is provided with at least two air inlets respectively located at two opposite sides of the bottom plate; and/or the third air ports and the switching air ports are respectively provided with at least one pair, and each third air port corresponds to each switching air port one by one.

In an embodiment of the first aspect, the air pump device includes: a vane disposed in the third air passage configured to drive an air flow along the third air passage in an axial or lateral manner; the driving motor is arranged in the accommodating cavity and is in driving connection with the blades; and the driving motor is also coupled to a power switch on the surface of the device body; and/or, a pump shell in the device body forms a power cavity which is opened to the first end part and is used for placing a power wire or a battery which is electrically connected with the driving motor; the cover plate arranged at the first end part of the pump shell is provided with an openable door body which correspondingly covers the opening; and/or forming a first chamber and a second chamber which are blocked from each other in the accommodating cavity; the first cavity is communicated with the first knob and the deflation component, and the second cavity is communicated with the second knob, the inflation component and the fifth air passage.

A second aspect of the present disclosure provides an inflation apparatus comprising: an equipment housing forming an equipment balloon; the air pump device according to any one of the first aspect, wherein the air intake portion and the air intake portion are provided in the equipment casing, and the equipment air bag is connected to the air intake portion.

As described above, in the embodiments of the present disclosure, there is provided an air pump device and an air charging apparatus, the air pump device including: the device comprises a device body, a first knob, a second knob, an inflation assembly and a deflation assembly. The first knob is provided with an air outlet part which is communicated with/isolated from the accommodating cavity along with the change of the self-movement position, and the second knob is provided with an air charging part which is communicated with/isolated from the accommodating cavity along with the change of the self-movement position; the air discharging component is driven by the first knob to switch the first air passage of the air discharging component to be communicated with the accommodating cavity or the air inlet part, and the air discharging component can be communicated with the air discharging part when being communicated with the accommodating part; the inflation assembly is driven by the second knob to switch the second air passage of the inflation assembly to be communicated with or isolated from the accommodating cavity, the second air passage is communicated with the air suction part, and the inflation assembly can be communicated to the third air passage through the fourth air passage when being communicated with the accommodating cavity. Thus, when the first knob and the second knob are operated to enable the switching air port to be communicated with the air outlet part and the second air passage to be communicated with the accommodating cavity, an air discharging passage of the air suction part, the second air passage, the fifth air passage, the third air passage and the first air passage to the air outlet part for the equipment air bag is formed; or when the second air passage is isolated from the accommodating cavity and the first air passage is communicated with the air inlet part through operation, an air charging passage from the air charging part, the fifth air passage, the third air passage, the first air passage and the fourth air passage to the air inlet part is formed. The device is used in the air charging and discharging operation, and has the advantages of simple, compact and small structure, good reliability and efficiency.

Drawings

Fig. 1A shows a schematic diagram of a combination structure of an air pump device according to an embodiment of the disclosure.

Fig. 1B shows a schematic bottom view of the air pump device of fig. 1A.

Fig. 1C shows a schematic diagram of the air passage communication of the air pump device in an inflated state in an embodiment of the present disclosure.

Fig. 1D shows a schematic diagram of air passage communication of the air pump device in an air release state in an embodiment of the disclosure.

Fig. 2 shows an exploded structural schematic view of the air pump device in fig. 1A.

Fig. 3A shows a schematic front view of a pump housing in an embodiment of the present disclosure.

Fig. 3B shows a schematic view of the back structure of the pump casing in fig. 3A.

Fig. 4 shows a schematic rear view of an assembly of a cover plate provided with a first knob and a second knob in an embodiment of the present disclosure.

A schematic structural view of the air pump device in an embodiment of the present disclosure in which the pump housing is hidden and the partition plate and the bottom plate are separated is shown in fig. 5.

Fig. 6 shows a schematic structural view of an assembly with a barrier and a floor joined and mounted with a deflation assembly and an inflation assembly in an embodiment of the present disclosure.

FIG. 7A shows a schematic structural view of a deflation assembly in a deflated state in an embodiment of the present disclosure.

FIG. 7B shows a schematic diagram of the bottom view of the venting assembly of FIG. 7A.

FIG. 7C shows a schematic structural view of a deflation assembly in an extended state in an embodiment of the present disclosure.

Fig. 8A shows a schematic structural view of an inflation assembly in a contracted state in an embodiment of the present disclosure.

Fig. 8B shows a schematic structural view of an inflation assembly in an extended state in an embodiment of the present disclosure.

Fig. 8C shows a schematic structural view of a bottom view of the back side of an inflatable module in an embodiment of the present disclosure.

Fig. 9A is a schematic diagram showing an air passage direction structure inside the air pump device in an air release state according to an embodiment of the disclosure.

Fig. 9B is a schematic diagram showing the structure of the air passage inside the air pump device in the inflated state according to an embodiment of the disclosure.

Fig. 10A shows a schematic sectional structure of an air pump device in an inactive state in an embodiment of the present disclosure.

Fig. 10B shows a schematic cross-sectional structure showing the direction of the air passage of the air pump device in the deflated state in an embodiment of the present disclosure.

Fig. 10C is a schematic cross-sectional view showing the direction of the air passage of the air pump device in the inflated state according to an embodiment of the present disclosure.

Detailed Description

Other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the following detailed description of the embodiments of the disclosure given by way of specific examples. The disclosure may be embodied or applied in other specific forms and details, and various modifications and alterations may be made to the details of the disclosure in various respects, all without departing from the spirit of the disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The embodiments of the present disclosure will be described in detail below with reference to the attached drawings so that those skilled in the art to which the present disclosure pertains can easily implement the same. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

In the description of the present disclosure, references to the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in an embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, various embodiments or examples, as well as features of various embodiments or examples, presented in this disclosure may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or the number of technical features indicated. Thus, a feature defining "first", "second" may include the feature explicitly or implicitly. In the representations of the present disclosure, "a set" means two or more, unless specifically defined otherwise.

For the purpose of clarity of the present disclosure, components that are not related to the description are omitted, and the same or similar components are given the same reference numerals throughout the specification.

Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" with other elements interposed therebetween. In addition, when a certain component is said to be "included" in a certain device, unless otherwise stated, other components are not excluded, but it means that other components may be included.

Although the terms first, second, etc. may be used herein to connote various elements in some examples, the elements should not be limited by the terms. These terms are only used to distinguish one element from another element. For example, a first interface, a second interface, etc. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, modules, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, modules, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; A. b and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the language clearly indicates the contrary. The meaning of "comprising" in the specification is to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.

Although not differently defined, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The term append defined in commonly used dictionaries is interpreted as having a meaning that is consistent with the meaning of the relevant technical literature and the currently prompted message, and is not excessively interpreted as an ideal or very formulaic meaning, so long as no definition is made.

Currently, some inflating devices have built-in air pumps to inflate the device air bags therein at any time. Common inflatable devices such as inflatable beds, inflatable sofas, and the like. However, the conventional internal air pump has the problems of high cost, low reliability, air flow loss and the like due to a complex structure, and has the problems of increased volume and low efficiency due to idle parts.

In view of this, provide the air pump device in this disclosed embodiment, each part can be used for gassing and breathing in commonly, compact structure is small and exquisite, convenient operation, and the reliability is high, effectively solves prior art's problem.

Please refer to fig. 1A, fig. 1B, and fig. 2. Fig. 1A shows a schematic diagram of a combination structure of an air pump device according to an embodiment of the disclosure. Fig. 1B shows a schematic bottom view of the air pump device of fig. 1A. Fig. 2 shows an exploded structural schematic view of the air pump device in fig. 1A. The air pump device may be built in the air charging apparatus.

As shown in fig. 1A, the air pump device 100 is shown to include: the device includes a device body 101, a first knob 102, and a second knob 103. The first knob 102 and the second knob 103 are used for being rotated by a user operation to control the air pump device 100 to perform an inflation or deflation operation. The first knob 102 is provided with an air outlet portion 121, the second knob 103 is provided with an air charging portion 131, and the air outlet portion 121 and the air charging portion 131 are communicated with the outside, such as air in the atmosphere. Illustratively, the outlet 121 may include a plurality of outlet holes 1211, and further optionally, the plurality of outlet holes 1211 may be annularly disposed about a first shaft portion 1212 of the first knob 102. Illustratively, the inflatable portion 131 is also of the same structure, and the inflatable portion 131 includes a plurality of inflation holes 1311, and the plurality of inflation holes 1311 may be annularly disposed about a second shaft portion 1312 of the second knob 103. Referring to fig. 2, 10A, etc. showing a diagram of the internal structure of the apparatus body, the air pump apparatus 100 is internally formed with a receiving chamber 110, and the receiving chamber 110 is provided with a deflation assembly 104 and an inflation assembly 105 as in fig. 2. As shown in fig. 1B, the apparatus body 101 is further provided with an air intake portion 107 and an air intake portion 106, the air intake portion 107 and the air intake portion 106 are in communication with the equipment air bag of the inflation equipment, the air intake portion 107 is for inflating the equipment air bag, and the air intake portion 106 is for sucking the air in the equipment air bag to be discharged. The inflating part 131 corresponds to the air inlet part 107, and is used for obtaining inflation from the outside and inflating the equipment air bag through the air inlet part 107; the air suction unit 106 and the air outlet unit 121 are respectively used for sucking air from the equipment air bag and discharging the air to the outside through the air outlet unit 121.

The first knob 102 and the second knob 103 are provided in the accommodating chamber 110 so as to be capable of moving relatively deeply or remotely. Illustratively, as illustrated in fig. 2, the first knob 102 and the second knob 103 are guided to make a linear movement deeper or farther from the device body 101 when rotated by the first through portion 1121 and the second through portion 1122, respectively. In fig. 1A, the first knob 102 and the second knob 103 are not "screwed out" of the accommodating cavity 110, but can be screwed out upwards or reversely by a rotation in a predetermined direction (e.g. clockwise/anticlockwise) to return to the screwed state, i.e. the rotation motion is converted into a linear motion of the access device body 101. When the first knob 102 and the second knob 103 are rotated, the air outlet 121 of the first knob 102 switches the communication/isolation state of the air channel in the accommodating cavity 110 along with the movement position change of the first knob 102, the air inlet 131 of the second knob 103 switches the communication/isolation state of the air channel in the accommodating cavity 110 along with the movement position change of the second knob, and the air outlet 121 and the air inlet 131 are also communicated with the outside. Specifically, the first knob 102 may be connected to or isolated from the air outlet 121 by a user operation (e.g. rotation) of the accommodating chamber 110; the second knob 103 may be operated (e.g. rotated) by a user to move, so as to connect or isolate the inflating portion 131 from the accommodating cavity 110. And, the movement of the first knob 102 may drive the deflation assembly 104, and the movement of the second knob 103 may drive the inflation assembly 105, so as to achieve the butt joint of each air passage for deflation and the air outlet portion 121 and the air inlet portion 106, or the butt joint of each air passage for air suction and the inflation portion 131 and the air inlet portion 107, which are provided in the air pump device 100. For example, the first knob 102 is screwed out and the second knob 103 is screwed in, so that the air pump device 100 is set in a deflation state; alternatively, the air pump device 100 is set in an inflated state by screwing the first knob 102 in and unscrewing the second knob 103.

Specifically, reference may be made to fig. 1C and 1D, which are schematic airway structures in deflated and inflated states, respectively. Fig. 1C shows a schematic diagram of the internal air passage communication of the air pump device 100 in an inflated state in an example. Fig. 1D shows a schematic view of the air passage communication of the air pump device 100 in a deflated state in an example. The accommodating chamber 110 is formed with: an air intake portion 106 and an air intake portion 107 communicating with the equipment air bag; a third air passage 140 communicating the deflation assembly 104 and the inflation assembly 105; a fourth air passage that is on-off connectable with the air bleed assembly 104; and a fifth air passage communicating the inflating portion 131 and the third air passage 140. The dots in fig. 1C and 1D correspond to the air ports, air holes, etc. of the air channel that may be opened in the subsequent structural implementation.

The air release assembly 104 is provided with a first air passage communicated with the third air passage 140, and the air release assembly 104 is driven by the first knob 102 to switch the first air passage to be communicated with the accommodating cavity 110 or the air inlet part 107; wherein the deflation assembly 104 is configured such that the communication/isolation state between the first air passage and the accommodation chamber 110 is the same as the communication/isolation state between the air outlet 121 and the accommodation chamber 110. The inflation assembly 105 is provided with a second air passage communicated with the air suction part 106, and the inflation assembly 105 is driven by the second knob 103 to switch the second air passage to be communicated with or isolated from the accommodating cavity 110; wherein the inflation assembly 105 is configured such that a communication/isolation state between the second air passage and the accommodating chamber 110 is different from a communication/isolation state between the inflation portion 131 and the accommodating chamber 110.

When the first knob 102 drives the deflation component 104 to communicate with the air outlet 121 as in fig. 1C, and the second knob 103 drives the inflation component 105 to communicate the second air channel with the accommodating cavity 110, a deflation passage for the equipment air bag (not shown) of the air suction portion 106, the second air channel, the fifth air channel, the third air channel 140, the first air channel to the air outlet 121 is formed. In fig. 1D, when the second knob 103 drives the inflating module 105 to isolate the second air passage from the accommodating chamber 110, and the first knob 102 drives the deflating module 104 to communicate the first air passage with the air intake portion 107, an inflating passage for the equipment air bag from the inflating portion 131, the fifth air passage, the third air passage 140, the first air passage, the fourth air passage to the air intake portion 107 is formed.

As shown in fig. 2, an exploded structure of the air pump device 100 according to an embodiment is shown.

In fig. 2, the device body includes a pump housing 111, a cover plate 112, a partition 113, and a bottom plate 114.

The pump case 111 has a first end 1111 and a second end 1112 provided in the extending direction, and an internal space communicating the first end 1111 and the second end 1112. The extending direction is schematically the up-down thickness direction, and the first end 1111 and the second end 1112 are schematically the up-down two ends in the figure. Referring to fig. 3A and 3B, the first end 1111 is provided with a first ventilation portion 1113 communicating with the accommodating chamber 110, and a second ventilation portion 1114 communicating with the accommodating chamber 110. Illustratively, the first ventilation part 1113 and the second ventilation part 1114 have a convex ring structure, and the first ventilation part 1113 and the second ventilation part 1114 have a structure in which a plurality of hollow parts surrounding the central shaft hole are formed at intervals. Wherein, the first central shaft hole 11131 corresponding to the first knob 102 (refer to fig. 1A) is configured to allow the first knob 102 (refer to fig. 1A) to be drivingly connected to the air release assembly 104 (refer to fig. 5), for example, the air release assembly 104 is configured to be connected to the first knob 102 after being worn; the second central shaft hole 11141 corresponding to the second knob 103 may allow the second knob 103 to be drivably coupled to the inflation assembly 105 (see fig. 5).

Additionally, referring again to FIG. 3B, the back side of the pump housing 111 of FIG. 3A is shown wherein a first baffle 1115 is shown in addition to the first vent 1113 and the second vent 1114.

In some embodiments, to increase the efficiency of "inflation" and "deflation," barriers may be provided to the air passages in the inflation/deflation path and to the air passages in the deflation path to reduce air flow into unintended air passages. In particular, a first chamber and a second chamber that are mutually blocked may be formed in the accommodation chamber. The first cavity is communicated with the first knob and the deflation component, and the second cavity is communicated with the second knob, the inflation component and the fifth air passage. Referring particularly to fig. 3B and 6, in fig. 6, there is shown the front of the diaphragm 113 attached to the back of the pump housing 111, and a second barrier 1131 may be provided on the diaphragm 113. When the partition 113 is engaged with the pump housing 111 as indicated by the broken line in fig. 2, the housing 110 is formed with two spaces, i.e., the first and second chambers, respectively, communicating with the first knob and the deflation assembly, and communicating with the second knob, the fifth air passage, and the inflation assembly, respectively, by the first blocking member 1115 on the back side of the pump housing 111 and the second blocking member 1131 on the front side of the partition 113 in fig. 3B being in contact (either planar contact or in a male-female fit).

With the first and second chambers, the deflation portion and the first air passage of the deflation assembly may communicate with each other by communicating with the first chamber; when the inflating part is communicated, the inflating part can be communicated with the fifth air passage through the second chamber so as to be communicated with the third air passage; or when the inflating part is not conducted, the air suction part can be communicated with the fifth air passage through the second chamber so as to be communicated with the third air passage. Because the first blocking piece 1115 and the second blocking piece 1131 form a blocking between the first chamber and the second chamber, airflow flow between the two parts of space can be reduced, and the inflation/deflation efficiency can be effectively improved. For example, the amount of airflow that is diverted from the first airway to the outlet 121 to the third airway in fig. 9A may be reduced, see dashed arrow X.

Referring to fig. 4, a schematic view of a rear structure of an assembly of a cover plate provided with a first knob and a second knob in an embodiment of the present disclosure is shown. The cover plate 112 is provided at a first end 1111 of the pump housing 111, and a first knob 102 is provided corresponding to the first ventilation portion 1113 and a second knob 103 is provided corresponding to the second ventilation portion 1114. Fig. 4 shows a state of the back surface of the cover plate 112 after the first knob 102 and the second knob 103 are inserted. Referring to fig. 4 and 2, a structure in which the first knob 102 and the second knob 103 are rotated to perform a linear movement of being rotated in or out will be described in detail. In some embodiments, the cover 112 is provided with a first through portion 1121 for the first knob 102 to pass through, and a second through portion 1122 for the second knob 103 to pass through, and the first through portion 1121 and the second through portion 1122 may be configured as circular holes with a shape and a size matching with the first knob 102 and the second knob 103, respectively. The peripheral edges of the first and second through-holes 1121, 1122 extend in the pump housing 111 direction to form a wall surface, which may be cylindrical. The wall surface of the first through portion 1121 corresponding to the side surface of the first knob 102 is provided with a first guide groove 11211 which is close to the pump shell 111 along the rotation circumferential direction, and a first limit portion 11212 which is communicated with one end of the first guide groove 11211 which is close to the pump shell 111, and the side surface of the first knob 102 is provided with a first limit block 122 which is engaged with the first guide groove 11211 and can move along the first guide groove 11211 along with rotation. Illustratively, the first guide slot 11211 may be a curved slot, and may be formed by a recess of the first through-hole 1121 toward an extended end of the pump housing 111, the first limit portion 11212 may be a straight section communicating with an end of the first guide slot 11211, the first limit block 122 may be a protrusion protruding from a side surface of the first knob 102, the first limit block 122 may protrude to correspond to a slot surface of the first guide slot 11211 toward the pump housing 111, and move along the slot surface along with rotation of the first knob 102, and displacement of the first knob 102 in a linear direction deeper into or farther from the pump housing 111 is generated by the first guide slot 11211 until the first limit block 122 reaches an end of the first guide slot 11211 to be blocked against the first limit portion 11212, preventing continued rotation and linear movement of the first knob 102 deeper into or farther from.

Similarly, the wall surface of the second through portion 1122 corresponding to the side surface of the second knob 103 is provided with a second guiding groove 11221 adjacent to the pump casing 111 along the rotation circumferential direction, and a second limiting portion 11222 communicating with one end of the second guiding groove 11221 adjacent to the pump casing 111, and the side surface of the second knob 103 is provided with a second limiting block 132 engaging with the second guiding groove 11221 and capable of moving along the second guiding groove 11221 along with rotation.

Illustratively, the structural principle of movement of the first knob 102 and the second knob 103 to achieve communication or isolation with the receiving cavity 110 is further specifically described. As shown in fig. 4, the end of the first knob 102 facing the pump housing 111 is provided with a first sealing member 123, and the first sealing member 123 is configured to enclose a first separation cover with the first knob 102 to isolate the air outlet 121 from the first ventilation portion 1113 when the first knob 102 is pushed into the pump housing 111. The end of the second knob 103 facing the pump housing 111 is provided with a second sealing member 133, and the second sealing member 133 is configured to enclose a second separation cover with the second knob 103 to isolate the air charging portion 131 from the second air venting portion 1114 when the second knob 103 is inserted into the press-contact pump housing 111. Illustratively, the first and second seals 123, 133 are sealing rings.

As described above with reference to fig. 1A and 10A, the air outlet 121 of the first knob 102 or the air inlet 131 of the second knob 103 may be configured such that a plurality of air outlet/air inlet holes are disposed annularly around a central shaft portion, and the first knob 102 and the second knob 103 have a fitting groove toward one end of the pump housing 111 to fixedly fit the first seal 123 or the second seal 133 to form a first shield or a second shield, which is not shown because the fitting groove is already fitted with the seal in fig. 10A. Taking the first knob 102 as an example, when the first knob 102 is rotated to extend into the pump housing 111 to the point that the first seal 123 abuts against the surface of the pump housing 111, the first ventilation portion 1113 in the center thereof is covered by the first partition cover, and the communication air passages between the first ventilation portion 1113 and the respective air outlet holes 1211 on the peripheral side of the first partition cover are isolated. In contrast, as shown with reference to fig. 10B and 10C, when the first knob 102 moves away from the pump housing 111, the contact between the first seal 123 and the surface of the pump housing 111 is released, thereby communicating the first ventilation portion 1113 and the air outlet 1211. Thus, for example, the first knob 102 may form a seal between the air outlet 121 and the housing chamber 110 in the screwed-in state, and may form a communication between the air outlet 121 and the housing chamber 110 in the unscrewed state. Similarly, the second knob 103 may form an isolation between the air charging portion 131 and the accommodating chamber 110 (i.e., the air charging portion 131 and the second air venting portion 1114 are isolated) in the screwed-in state, and may form a communication between the air charging portion 131 and the accommodating chamber 110 in the unscrewed state.

Referring again to fig. 2, 5 and 6. The dashed lines in fig. 2 indicate the combination of the pump housing 111, the partition 113 and the bottom plate 114. A schematic view of the structure with the pump housing 111 hidden and the diaphragm 113 and the bottom plate 114 separated is shown in fig. 5, which also shows the first knob 102, the second knob 103, the cover plate 112, the deflation assembly 104, the inflation assembly 105, and the like. Fig. 6 shows a schematic structural view of the partition 113 and the bottom plate 114 joined up and down and mounted with the deflation assembly 104 and the inflation assembly 105.

The diaphragm 113 and the bottom plate 114 are stacked on the second end 1112 of the pump housing 111 from near to far. The partition 113 may define the receiving chamber 110 with the pump housing 111. A third air passage 140 is formed in a chamber defined by the joint of the partition 113 and the bottom plate 114.

The partition 113 is provided with the suction portion 106, and an intermediate ventilation portion 161 that communicates with the accommodating chamber 110 and the third air passage 140 to form the fifth air passage. The accommodating cavity 110 can be communicated with the first knob 102 and the air discharging assembly 104, and the air inlet part 107 is arranged through the bottom plate 114 and the partition plate 113. Also shown in fig. 5 are an inflation assembly 105 and a deflation assembly 104, corresponding to respective states of the first knob 102 and the second knob 103 still in a screwed-in state. The left and right regions of the second barrier 1131 correspond to being respectively received into two portions of space separated by the first barrier 1115 and the second barrier 1131, respectively corresponding to "inflated" and "deflated". One of the two spaces passes through the lower end of the air release assembly 104 (see fig. 7B), and the other passes through the intermediate ventilation portion 161, and is communicated with the third air passage 140 between the partition 113 and the bottom plate 114.

In some embodiments, as can be seen in fig. 2, 5 and 6, a vane 108 may be disposed in the third air duct 140, the vane 108 illustratively being shown as a centrifugal fan driving the air flow laterally, thereby enabling efficient air flow transport even with flattened space saving. Alternatively, in other scenes with low volume limitation, the fan blade with axial air outlet can be used. In addition, the air pump device 100 may further include a driving motor 109 drivingly connected to the blade 108 to control rotation of the blade 108. Illustratively, in FIG. 2, the drive motor 109 may be mounted into the receiving chamber 110, illustratively between the deflation assembly 104 and the inflation assembly 105 in FIG. 5, and the drive shaft 191 for the blades 108 may be connected to the shaft bore 181 in the center of the blades 108 through corresponding through holes 161 located in-line with the intermediate vent 161. Illustratively, as shown in fig. 2, the driving motor 109 may be coupled to a power switch 110 on the surface of the device body 101 to be controlled by an electric signal of the user operating the power switch 110 to drive the blade 108 to operate or stop. For example, the electrical connection or movement of the power switch 110 may mechanically trigger a self-switch on the drive motor 109 to start or stop the drive motor 109.

In fig. 6, it is also clear that the middle ventilation portion 161 is illustrated, which is exemplified by a combination of a plurality of discrete hollowed-out portions, or may be a monolithic hollowed-out portion in other embodiments, but not limited thereto.

In some embodiments, the drive motor 109 may operate via a wired power source, or an integrated battery, or the like. Illustratively, as illustrated in fig. 1A, 1B, and 3A, the pump housing 111 forms a power cavity 1116 that opens to the first end 1111, the power cavity 1116 being configured to receive a power cord 201 or a battery that is electrically connected to the drive motor 109. The cover plate 112 may be provided with an openable and closable door 1123 that correspondingly covers the opening of the power supply cavity 1116.

The following describes the structural principle of the airway switching corresponding to the inflation/deflation state by driving the deflation assembly 104 and the inflation assembly 105 through the first knob 102 and the second knob 103.

As shown in fig. 7A, a schematic structural view of deflation assembly 104 in a deflated state in an embodiment of the present disclosure is shown.

Illustratively, the deflation assembly 104 includes a first telescoping member 141 and a first kit 142. One end (upper end in the drawing) of the first telescopic member 141 is connected to a first knob. Alternatively, the connection may be a positioning connection, such as an opening at one end of the first telescoping member 141, which extends from below and up through the first central shaft hole 11131 of the first venting portion 1113 of the pump housing 111 as shown in fig. 3A and is positioned to be sleeved outside the first male shaft 124 disposed on the back side of the first knob 102 in fig. 4, such as the exemplary illustrated sleeved state in fig. 10A.

Referring to fig. 7B, a second ventilation opening 14122 is formed at the other end of the first telescopic member 141, and a switching air opening 14121 is formed on the sidewall. The switching port 14121 and the second air port 14122 communicate to form a first air passage.

Referring to fig. 7B and 7C, the first sleeve 142 has opposite first and second open ends 1421 and 1422 (upper and lower ends as shown), and an interior space extending through the first and second open ends 1421 and 1422. And referring to fig. 10A, the first sleeve 142 partially penetrates the partition 113 so that the second open end 1422 is closely connected to the third air passage, and the first open end 1421 is connected to the accommodating chamber. The first open end 1421 allows the first telescopic member 141 to extend into the inner space, and the second open end 1422 communicates with the second air vent 14122. The first sleeve 142 is provided with a third vent 1423 communicating with the second open end 1422 and the air inlet.

In fig. 7C, a schematic structural view of the deflation assembly in an extended state in an embodiment of the present disclosure. The switching port 14121 is shown communicating with the receiving chamber 110 when the first telescopic member 141 is in the first telescopic position, i.e., the first telescopic member 141 extends out of the first sleeve member 142, and the sidewall of the first telescopic member 141 blocks the third vent 1423 to isolate the switching port 14121 from the third vent 1423, so that the switching port 14121 is isolated from communicating with the air inlet 107 in the receiving chamber 110 because the third vent 1423 is communicated with the air inlet 107. Or as shown in fig. 7A, when the first telescopic member 141 is in the second telescopic position, i.e., for example, the first telescopic member 141 does not extend out of the first sleeve 142, the switching air port 14121 communicates with the third air port 1423 to communicate with the air inlet 107, and the air outlet 121 is isolated from the accommodating cavity 110, i.e., from the switching air port 14121 and the first air passage, because the first knob 102 is screwed in.

Further, as shown in fig. 7A to 7C. Taking fig. 7C as an example, the first telescopic member 141 may include a first connecting rod 1411 and a first socket 1412. One end of the first connecting rod 1411 is positioned and connected to the first knob 102. The first sleeve 1412 fits telescopically over the first sleeve 142. The first socket 1412 may illustratively appear as a barrel. The first sleeve body 1412 has a first end and a second end opposite to each other, wherein the first end is fixedly connected to the other end of the first connecting rod 1411 (may be an integrally formed structure), the second end forms a second vent 14122 as shown in fig. 7B, and the switching vent 14121 is provided at one end thereof adjacent to the end fixedly connected to the first connecting rod 1411.

In some embodiments, as shown in fig. 2 and 10A, the first sleeve body 1412 is further provided with a first conductive connection portion 14123 extending from the inner wall surface of the first end toward the bottom plate 114 along the extending direction, the bottom plate 114 is provided with a second conductive connection portion 1141 corresponding to the first sleeve position, and the first conductive connection portion 14123 and the second conductive connection portion 1141 are used for abutting and sleeving with two ends of a first return spring 1003. The first return spring 1003 is compressed when the first knob 102 is in a screwed-in state, so that the first knob 102 can be conveniently unscrewed. Specifically, in the embodiment using the first limiting portion 11212, the first guiding slot 11211 and the first limiting block 122 to cooperate, the user reversely rotates the screwed first knob 102 to make the first limiting block 122 separate from the first limiting portion 11212 and enter the first guiding slot 11211, that is, the first knob 102 is automatically screwed out under the action of the restoring force of the first restoring spring 1003, so that the user does not need to manually screw out the first knob 102 in the whole course, thereby greatly facilitating the operation of the user.

For example, as illustrated in fig. 1B and 6, the air inlet 107 may have a pair of air inlet portions disposed at opposite ends of the bottom plate 114 (and the partition 113), one of which may be used as a redundant alternative to the other in the event of encountering, for example, a blockage, and/or a blockage, thereby improving reliability. Similarly, as shown in fig. 7C, a pair of third air ports 1423 of the first sleeve 142 may also be provided, and a pair of switching air ports 14121 of the first telescopic member 141 may also be provided, so that each third air port 1423 may be communicated with one switching air port 14121 in fig. 7A.

As shown in fig. 8A, a schematic structural diagram of the inflation assembly 105 in one embodiment of the present disclosure is shown.

Illustratively, the inflation assembly 105 includes a second telescoping member 151 and a second sleeve 152. One end of the second telescopic member 151 is connected to the second knob. The connection may be a positioning connection, such as the second telescopic member 151 having an opening at one end and passing from the bottom up through the second central shaft hole 11141 of the second vent portion 1114 of the pump housing 111 shown in fig. 3A and positioned to fit over the second protruding shaft 134 provided on the back side of the second knob 103 in fig. 4.

As shown in fig. 8A to 8C, the second sleeve 152 has a third open end 1521 and a fourth open end 1522 (e.g., upper and lower ends in the drawing), and an inner space communicating the third open end 1521 and the fourth open end 1522, and the fourth open end 1522 may be shown with reference to the back side of the inflation assembly 105 shown in fig. 8C. The third open end 1521 may be opened and closed to allow the second expansion member 151 (i.e. may be closed or opened by the second expansion member 151) to extend into the inner space thereof, and the fourth open end 1522 may be communicated with the air suction portion 106 to form the second air passage. When the second telescopic member 151 is at the third telescopic position, the second telescopic member 151 closes the third open end 1521 to isolate the passage from the air suction portion from the second air passage to the accommodating chamber (not shown in fig. 8B, refer to other drawings), i.e., the upper end in fig. 8B is closed, so that the air suction portion communicated with the fourth open end 1522 cannot be communicated to the accommodating chamber through the third open end, and the air charging portion 131 can be communicated to the third air passage 140 through the fifth air passage. When the second telescopic member 151 is in the fourth telescopic position, i.e. the upper end is opened as shown in fig. 8A, the air suction portion 106 is conducted to the accommodating cavity 110 via the second air path, and the direction of the air path indicated by the arrow I in fig. 8C can be referred to. Wherein the third telescopic position is closer to the first end 1111 than the fourth telescopic position. Specifically, the third telescopic position is set corresponding to the unscrewed state of the second knob 103, and the fourth telescopic position is set corresponding to the screwed state of the second knob 103.

Taking fig. 8B and 8C as an example for illustration, the second telescopic member 151 includes a second connecting rod 1511 and a plug portion 1512, one end of the second connecting rod 1511 is fixedly connected with the second knob, and the plug portion 1512 is formed at the other end of the second connecting rod 1511 and is used for plugging the third open end 1521. Referring to fig. 10A, the second connecting rod 1511 is sleeved with a second return spring 1004, and two ends of the second return spring 1004 respectively abut against the second knob 103 and the surface of the pump housing 111.

In some embodiments, a seal ring may be disposed between the plug 1512 and its mating third open end 1521 to provide a seal when plugged therebetween.

It should be specifically noted that, the relationship between the telescopic states of the air discharging assembly and the air charging and discharging states of the air pump device in fig. 7A to 7C and fig. 8A to 8C is only an example, and those skilled in the art may extend according to the teachings of the embodiments of the present disclosure, for example, the air discharging assembly and the air charging assembly are both in the extended state, but the same air passage communication relationship in the embodiments of the present disclosure can be achieved through the change of the air passage communication structure, so the specific implementation is not limited to the illustrated embodiments.

The air passage switching structure of the air release assembly 104 is described through fig. 7A to 7C, the air passage switching structure of the air inflation assembly 105 is described through fig. 8A to 8C, and the specific structure of the air pump device 100 in the air release and inflation state is described with reference to fig. 9A to 10C.

Referring to fig. 9A and 10B, a structure in a deflated state of the air pump device 100 is shown. The first knob 102 is rotated out to place the air outlet 121 in communication with the receiving cavity (the receiving cavity is not shown in fig. 10B and 10C for ease of viewing the air passage, and the air outlet 14121 is placed in communication with the air outlet 121 by driving the air release assembly 104 (the first telescopic member 141 is moved upward away from the first sleeve member 142) to place the switching air outlet 14121 in communication with the receiving cavity; and, the second knob 103 is screwed in to drive the inflation assembly 105 to make the second air passage communication accommodating chamber, that is, the air suction portion 106, communicate with the third air passage 140 through the middle ventilating portion 161 (that is, the fifth air passage) in the accommodating chamber, and the inflation portion 131 of the second knob 103 is isolated from the accommodating chamber. Thus, the air suction portion 106, the second air passage (in the inflator assembly 105), the fifth air passage, the third air passage 140, the first air passage (in the deflate assembly 104), the accommodation chamber, and the deflate passage to the device air bag to the air outlet portion 121 are formed in this order as shown by an arrow a in the drawing.

Referring to fig. 9B and 10C, a structure of the air pump device 100 in an inflated state is shown. The second knob 103 is screwed out to enable the inflating part 131 to be communicated with the accommodating cavity 110 and communicated with the third air passage 140 through the fifth air passage; and, the second knob 103 drives the inflation assembly 105 (the second telescopic member 151 plugs the upper end of the second sleeve 152) to isolate the second air passage from the accommodating chamber 110, and the air suction portion 106 is isolated from the accommodating chamber 110. And, the first knob 102 is screwed in to isolate the air outlet 121 from the accommodating cavity 110, and the air release assembly 104 is driven to communicate the switching air port 14121 with the third air port 1423, so that the first air passage is communicated with the air inlet 107, and then the third air passage 140 is communicated with the air inlet 107 through the first air passage. Thus, the inflation passages of the inflation portion 131, the fifth air passage, the third air passage 140, the first air passage, the fourth air passage to the air intake portion 107 to the equipment air bag are formed as indicated by the B arrow.

In yet another embodiment of the present disclosure, there may be provided an inflator device including: an equipment housing forming an equipment balloon; the air pump device 100 according to any one of the above embodiments is built in the equipment housing, and the air inlet 107 and the air suction 106 are connected to the equipment air bag. The inflation equipment can be an inflatable bed, an inflatable sofa and the like.

Specifically, in the actual use situation, when the air pump device is not used, both the first knob and the second knob are kept in the screwed-in state. When the inflation equipment needs to be deflated, the user unscrews the first knob, keeps the second knob screwed in, and starts to deflate by opening the power switch. When the inflation equipment is required to be inflated, the user unscrews the second knob, keeps the first knob screwed in, and starts to inflate by opening the power switch. The power switch is turned off after the inflation is completed.

In summary, embodiments of the present disclosure provide an air pump device and an air charging apparatus, where the air pump device includes: the device comprises a device body, a first knob, a second knob, an inflation assembly and a deflation assembly. The first knob is provided with an air outlet part which is communicated with/isolated from the accommodating cavity along with the change of the self-movement position, and the second knob is provided with an air charging part which is communicated with/isolated from the accommodating cavity along with the change of the self-movement position; the air discharging component is driven by the first knob to switch the first air passage of the air discharging component to be communicated with the accommodating cavity or the air inlet part, and the air discharging component can be communicated with the air discharging part when being communicated with the accommodating part; the inflation assembly is driven by the second knob to switch the second air passage of the inflation assembly to be communicated with or isolated from the accommodating cavity, the second air passage is communicated with the air suction part, and the inflation assembly can be communicated to the third air passage through the fourth air passage when being communicated with the accommodating cavity. Thus, when the first knob and the second knob are operated to enable the switching air port to be communicated with the air outlet part and the second air passage to be communicated with the accommodating cavity, an air discharging passage of the air suction part, the second air passage, the fifth air passage, the third air passage and the first air passage to the air outlet part for the equipment air bag is formed; or when the second air passage is isolated from the accommodating cavity and the first air passage is communicated with the air inlet part through operation, an air charging passage from the air charging part, the fifth air passage, the third air passage, the first air passage and the fourth air passage to the air inlet part is formed. The device is used in the air charging and discharging operation, and has the advantages of simple, compact and small structure, good reliability and efficiency.

The above embodiments are merely illustrative of the principles of the present disclosure and its efficacy, and are not intended to limit the disclosure. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present disclosure. Accordingly, it is intended that all equivalent modifications and variations which a person having ordinary skill in the art would accomplish without departing from the spirit and technical spirit of the present disclosure be covered by the claims of the present disclosure.

Claims

1. An air pump apparatus, characterized by being applied to an air-inflating device having a device air bag, comprising: the device comprises a device body, a first knob, a second knob, a deflation component and an inflation component;

the device body has a receiving chamber for receiving the deflation assembly and the inflation assembly, and is formed with a housing comprising: an air suction part and an air inlet part of the equipment air bag are communicated; a third air passage communicating the deflation assembly and the inflation assembly; a fourth air passage which is communicated with the air inlet part and is communicated with the first air passage in an openable and closable manner; and a fifth air passage communicating the accommodation chamber and the third air passage;

the first knob and the second knob are arranged in the accommodating cavity in a penetrating or far-away relative motion manner; the first knob is provided with an air outlet part which is used for switching the communication/isolation state between the first knob and the accommodating cavity along with the change of the self-movement position, the second knob is provided with an air charging part which is used for switching the communication/isolation state between the second knob and the accommodating cavity along with the change of the self-movement position, and the air outlet part and the air charging part are also communicated with the outside;

The air discharging component is provided with a first air passage communicated with the third air passage, and is driven by a first knob to switch the first air passage to be communicated with the accommodating cavity or the air inlet part; wherein the air bleed assembly is configured such that the communication/isolation state between the first air passage and the accommodation chamber is the same as the communication/isolation state between the air outlet and the accommodation chamber;

the inflation assembly is provided with a second air passage communicated with the air suction part, and is driven by a second knob to switch the second air passage to be communicated with or isolated from the accommodating cavity; wherein the inflation assembly is configured to differentiate a communication/isolation state between the second air passage and the accommodation chamber from a communication/isolation state between the inflation portion and the accommodation chamber;

when the first knob drives the air discharging component to enable the first air channel to be communicated with the air outlet part, and the second knob drives the air charging component to enable the second air channel to be communicated with the accommodating cavity, an air discharging passage of the air sucking part, the second air channel, the fifth air channel, the third air channel and the first air channel to the air outlet part for the equipment air bag is formed; when the second knob drives the inflation assembly to isolate the second air passage from the accommodating cavity and the first knob drives the deflation assembly to communicate the first air passage with the air inlet part, an inflation passage of the inflation part, the fifth air passage, the third air passage, the first air passage and the fourth air passage to the air inlet part for inflating the equipment air bag is formed.

2. The air pump apparatus according to claim 1, wherein the apparatus body includes a pump housing, a cover plate, a partition plate, and a bottom plate;

the pump shell is provided with a first end part, a second end part and a space, wherein the first end part and the second end part are arranged along the extending direction; the first end part is provided with a first ventilation part communicated with the accommodating cavity and a second ventilation part communicated with the accommodating cavity;

the cover plate is arranged at the first end part of the pump shell, a first knob is arranged corresponding to the first ventilation part in a penetrating way, and a second knob is arranged corresponding to the second ventilation part in a penetrating way; the first knob and the second knob are respectively guided by the first ventilation part and the second ventilation part to do movement which goes deep or far away from the pump shell when rotating; the first sealing piece is used for enclosing a first separation cover which isolates the air outlet part from the first ventilation part with the first knob when the first knob goes deep into the press-contact pump shell along with the first knob; the second sealing piece is arranged at one end of the second knob, which faces the pump shell, and is used for enclosing a second isolation cover which isolates the inflating part from the second ventilation part with the second knob when the second sealing piece is in deep contact with the pump shell along with the second knob;

The partition plate and the bottom plate are overlapped at the second end part from near to far; the accommodating cavity is defined between the partition plate and the pump shell; the third air passage is formed in the cavity between the partition plate and the bottom plate; the partition plate is provided with the air suction part and an intermediate ventilation part which is communicated with the accommodating cavity and the third air passage to form the fifth air passage; the air inlet part penetrates through the bottom plate and the partition plate.

3. The air pump device according to claim 2, wherein the cover plate is provided with a first penetrating portion penetrating through the first knob and a second penetrating portion penetrating through the second knob; the wall surface of the first through part corresponding to the side surface of the first knob is provided with a first guide groove which is close to the pump shell along the rotation circumferential direction and a first limit part which is communicated with one end of the first guide groove which is close to the pump shell, and the side surface of the first knob is provided with a first limit block which is clamped with the first guide groove and can move along the first guide groove along with rotation; the wall surface of the second penetrating part corresponding to the side surface of the second knob is provided with a second guide groove which is close to the pump shell along the rotation circumferential direction and a second limiting part which is communicated with one end of the second guide groove which is close to the pump shell, and the side surface of the second knob is provided with a second limiting block which is clamped with the second guide groove and can move along the second guide groove along with rotation.

4. The air pump apparatus of claim 2, wherein the air bleed assembly comprises:

one end of the first telescopic piece is connected with the first knob, the opposite end of the first telescopic piece forms a second ventilation opening, and the side wall of the first telescopic piece is provided with a switching air opening; the switching air port is communicated with the second air port to form a first air passage;

a first sleeve having opposite first and second open ends, and an interior space extending through the first and second open ends; the first sleeve part penetrates through the partition board to enable the second open end to be closely communicated with the third air passage, and the first open end is communicated with the accommodating cavity; the first open end is used for the first telescopic piece to extend into the inner space of the first telescopic piece, and the second open end is communicated with the second ventilation opening; the first sleeve is provided with a third air outlet communicated with the second open end and the air inlet part;

when the first telescopic piece is positioned at a first telescopic position, the switching air port is communicated with the accommodating cavity, and the side wall of the first telescopic piece blocks the third air port to isolate the switching air port from the air inlet part; when the first telescopic piece is in the second telescopic position, the switching air port is communicated with the third air port so as to be communicated with the air inlet part.

5. The air pump apparatus according to claim 4, wherein the first telescopic member includes:

one end of the first connecting rod is connected with the first knob in a positioning way;

the first sleeve body is sleeved with the first sleeve member in a telescopic fit manner and is provided with a first end and a second end which are opposite; the first end is fixedly connected with the other end of the first connecting rod, the second end forms the second ventilation opening, and the switching air opening is arranged at one end close to the first connecting rod; the first sleeve joint body is further provided with a first guide connection part, the inner wall surface of the first end of the first guide connection part extends towards the bottom plate along the extending direction, the bottom plate is provided with a second guide connection part corresponding to the first shaft sleeve, and the first guide connection part and the second guide connection part are used for being sleeved with two ends of a first reset spring in a butt joint mode.

6. The air pump apparatus of claim 1, wherein the inflation assembly comprises:

one end of the second telescopic piece is connected with the second knob;

the second sleeve member is provided with a third open end, a fourth open end and an inner space communicated with the third open end and the fourth open end, the third open end can be opened and closed for the other end of the second telescopic member to extend into the inner space of the second telescopic member, and the fourth open end is communicated with the air suction part to form the second air passage;

When the second telescopic piece is positioned at a third telescopic position, the second telescopic piece plugs the third open end to isolate a passage from the air suction part to the accommodating cavity through the second air passage; when the second telescopic piece is in the fourth telescopic position, the air suction part is conducted to the passage from the second air passage to the accommodating cavity.

7. The air pump apparatus according to claim 6, wherein the second telescopic member includes:

one end of the second connecting rod is fixedly connected with a second knob;

the plug part is formed at the other end of the second connecting rod and used for plugging the third open end; the second connecting rod is sleeved with a second reset spring, and two ends of the second reset spring are respectively abutted against the second knob and the surface of the pump shell in the device body.

8. The air pump apparatus according to claim 4, wherein the air intake portion is provided with at least two, respectively located on opposite sides of the bottom plate; and/or the third air ports and the switching air ports are respectively provided with at least one pair, and each third air port corresponds to each switching air port one by one.

9. The air pump apparatus according to claim 1, comprising:

a vane disposed in the third air passage configured to drive an air flow along the third air passage in an axial or lateral manner;

The driving motor is arranged in the accommodating cavity and is in driving connection with the blades; and the driving motor is also coupled to a power switch on the surface of the device body;

and/or, a pump shell in the device body forms a power cavity which is opened to the first end part and is used for placing a power wire or a battery which is electrically connected with the driving motor; the cover plate arranged at the first end part of the pump shell is provided with an openable door body which correspondingly covers the opening;

and/or forming a first chamber and a second chamber which are blocked from each other in the accommodating cavity; the first cavity is communicated with the first knob and the deflation component, and the second cavity is communicated with the second knob, the inflation component and the fifth air passage.

10. An inflation apparatus, comprising:

an equipment housing forming an equipment balloon;

the air pump device according to any one of claims 1 to 9, wherein the air intake portion and the air intake portion are provided in the equipment casing, and the equipment air bag is connected to the air intake portion.