Dual-purpose pump convenient to switch

Abstract

The utility model belongs to the technical field of air pumps, and particularly relates to a dual-purpose pump convenient to switch, which comprises a pump body, the pump body comprises a shell and a containing cavity formed in the shell, a motor assembly, a connecting rod, a switching assembly and a stepping motor are arranged in the containing cavity, and the stepping motor is connected with the switching assembly through the connecting rod. A first through hole and a second through hole are formed in the motor assembly, an air hole and an air port are formed in the shell, and a third through hole is formed in the conversion assembly; the pump body is used as an external pump, during air inflation, the motor assembly is started, the first through hole and the third through hole are communicated, and air enters the containing cavity from the air hole, sequentially passes through the conversion assembly and the air port after passing through the motor assembly and then enters a to-be-inflated product; during air exhaust, the stepping motor drives the conversion assembly to move through the connecting rod, the conversion assembly is pulled downwards, the second through hole is communicated with the third through hole, and air sequentially passes through the conversion assembly and the motor assembly from the air opening and then is exhausted from the air hole. And when the inflation state or the non-working state is recovered, the conversion assembly is reset.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pumps, and in particular relates to a dual-purpose pump which is easy to switch. Background Art

[0002] With the rapid economic development and the continuous improvement of residents' living standards, some outdoor and indoor sports enthusiasts are increasingly fond of inflatable products such as inflatable beds, inflatable sofas or inflatable swimming pools. In general technology, a pump for both pumping and inflating is usually used to inflate or degas inflatable products.

[0003] However, in the prior art, the structure of the pump for pumping and inflating is complicated, usually two motors or one motor and one solenoid valve are needed, and the cost is high. Moreover, the air pump in the prior art can usually only be used as a built-in pump or an external pump.

[0004] In view of this, the utility model aims to provide a dual-purpose pump which is easy to switch, and which can realize free switching between vacuuming and inflation only by controlling the conversion component through a stepper motor, that is, the switching between inflation and vacuuming is very convenient and can be controlled by voice, which is relatively intelligent.

[0005] In addition, the pump body in the air pump can be directly used as an external pump to perform pumping and inflating operations for other inflatable products. When the pump body and the outer shell are assembled together, they form a built-in pump structure, which can directly inflate and pump air for the inflatable product. It has a wide range of uses and powerful functions. Utility Model Content

[0006] The purpose of the utility model is to provide a dual-purpose pump which is easy to switch, in view of the shortcomings of the prior art. The pump can freely switch between exhaust and inflation only by controlling the conversion component through a stepper motor, that is, the switching between inflation and exhaust is very convenient and can be controlled by voice, which is relatively intelligent.

[0007] In addition, the pump body in the air pump can be directly used as an external pump to perform pumping and inflating operations for other inflatable products. When the pump body and the outer shell are assembled together, they form a built-in pump structure, which can directly inflate and pump air for the inflatable product. It has a wide range of uses and powerful functions.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A dual-purpose pump with convenient switching, comprising a pump body, the pump body comprising a shell and a receiving cavity formed in the shell, a motor assembly, a connecting rod, a conversion assembly and a stepping motor are arranged in the receiving cavity, the stepping motor is connected to the conversion assembly through the connecting rod, a first through hole and a second through hole are arranged on the motor assembly, an air hole and an air port are arranged on the shell, and a third through hole is arranged on the conversion assembly;

[0010] The pump body is used as an external pump. When inflating, the motor assembly is started, the first through hole and the third through hole are connected, and air enters the accommodating cavity from the air hole, passes through the motor assembly, and then passes through the conversion assembly and the air port in sequence before entering the product to be inflated;

[0011] When exhausting air, the stepper motor drives the conversion assembly to move through the connecting rod, pulls the conversion assembly downward, and the second through hole and the third through hole are connected. The air passes through the conversion assembly and the motor assembly in sequence from the air port and is then exhausted from the air hole.

[0012] When the inflated state or the non-working state is restored, the stepper motor drives the conversion assembly to move through the connecting rod to reset the conversion assembly.

[0013] As an improvement of the dual-purpose pump with convenient switching of the utility model, the connecting rod includes a connecting portion connected to the stepping motor and an embedded portion embedded in the conversion assembly.

[0014] As an improvement on the dual-purpose pump with easy switching of the utility model, the conversion assembly includes an integrally formed through-hole portion, a fixing portion and a wedge-shaped protrusion arranged on the back side of the through-hole portion, the third through-hole is arranged on the through-hole portion, the thickness of the through-hole portion is greater than the thickness of the fixing portion, and the fixing portion is connected to the connecting rod.

[0015] As an improvement of the dual-purpose pump with convenient switching of the utility model, a slider is arranged on the through hole portion, a slide rail is arranged on the motor assembly, and the slider is embedded in the slide rail.

[0016] As an improvement of the dual-purpose pump with convenient switching of the utility model, a limit switch is further arranged on the motor assembly, and when the through hole part touches the contact of the limit switch, the stepping motor is turned off.

[0017] As an improvement of the dual-purpose pump with easy switching of the utility model, the motor assembly includes an upper cover, a middle cover, a lower cover, a fan blade, a motor, a power supply structure and a PCBA board. The fan blade is arranged in the space formed by the upper cover and the middle cover, and the outlets of the upper cover and the middle cover form the first through hole, and the outlets of the middle cover and the lower cover form the second through hole. The middle cover is provided with a through hole, and the motor is connected to the fan blade after passing through the hole of the upper cover. The power supply structure is respectively connected to the motor and the PCBA board. A switch is also provided on the shell, and the PCBA board is connected to the switch. A voice control module is provided on the PCBA board.

[0018] As an improvement of the conveniently switchable dual-purpose pump of the utility model, from top to bottom, the shell comprises a top cover, a shell body and a lamp body, the lamp body is connected to a circuit board for controlling the on and off of the lamp body, and a handle is also provided on the top cover.

[0019] As an improvement of the conveniently switchable dual-purpose pump of the utility model, the air pump further comprises a shell, a ventilation bracket and an air-tight rubber nail, the pump body is detachably arranged in the shell, and an air inlet channel is formed between the pump body and the shell;

[0020] The airtight glue nail is connected to the ventilation bracket, the ventilation bracket is arranged close to the conversion component, the shell is provided with an air inlet and outlet, the air inlet and outlet are provided with an air mask, and the ventilation bracket is arranged in the air inlet and outlet;

[0021] At this time, the air pump is used as a built-in pump. When inflating, the gas reaching the air port directly opens the airtight rubber nail to inflate;

[0022] When exhausting air, the conversion component pushes open the ventilation bracket, and the gas passes through the gas mask and the gas port in sequence and then enters the accommodating chamber.

[0023] As an improvement of the conveniently switchable dual-purpose pump of the present invention, the ventilation bracket comprises an integrally formed bracket body and a frame body, the air-tight rubber nail comprises a sealing body and a rod body, the bracket body is provided with a vent hole, the rod body can be passed through the bracket body, the upper part of the frame body is provided with a cross bar portion and a bevel portion provided at at least one end of the cross bar portion, and the ventilation bracket is connected with an elastic component.

[0024] As an improvement of the dual-purpose pump with convenient switching of the utility model, the housing includes a cover body and a main body, the main body is made of a transparent material, and a protrusion is provided on the lower surface of the cover body. When the cover body is covered, the protrusion presses the electric switch in the pump body, and the pump body is in a shutdown state;

[0025] The pump body is provided with an undercut, and the inner surface of the pump body is provided with a groove body matching the undercut;

[0026] The air inlet and outlet are provided with a limiting annular groove for accommodating a sealing ring.

[0027] Compared with the prior art, the utility model provides a dual-purpose pump with easy switching, which can realize free switching between vacuuming and inflation only by controlling the conversion component through a stepper motor, that is, the switching between inflation and vacuuming is very convenient and can be controlled by voice, which is relatively intelligent.

[0028] In addition, the pump body in the air pump can be directly used as an external pump to perform pumping and inflating operations for other inflatable products. When the pump body and the outer shell are assembled together, they form a built-in pump structure, which can directly inflate and pump air for the inflatable product. It has a wide range of uses and powerful functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the utility model.

[0030] Figure 2 This is one of the schematic diagrams of the decomposition structure of Example 1 of the utility model.

[0031] Figure 3 This is the second schematic diagram of the decomposition structure of Example 1 of the utility model.

[0032] Figure 4 This is the third schematic diagram of the decomposition structure of Example 1 of the utility model.

[0033] Figure 5 It is a schematic diagram of the structure of the conversion component in Example 1 of the utility model.

[0034] Figure 6 This is a schematic diagram of the structure of the connecting rod in Example 1 of the utility model.

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of Example 2 of the utility model.

[0036] Figure 8 This is one of the schematic diagrams of the decomposition structure of Example 2 of the present utility model.

[0037] Fig. 9 This is the second schematic diagram of the decomposition structure of Example 2 of the utility model.

[0038] Fig.10 This is the third schematic diagram of the decomposition structure of Example 2 of the utility model.

[0039] Fig.11 This is a schematic diagram of the structure of the ventilation bracket and the air-tight rubber nail in Example 2 of the utility model. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] Example 1

[0044] like Figures 1 to 6 As shown, this embodiment provides a dual-purpose pump with convenient switching, including a pump body, the pump body including a shell 1 and a receiving cavity formed in the shell 1, a motor assembly 2, a connecting rod 3, a conversion assembly 4 and a stepper motor 5 are arranged in the receiving cavity, the stepper motor 5 is connected to the conversion assembly 4 through the connecting rod 3, the motor assembly 4 is provided with a first through hole and a second through hole, the shell 1 is provided with an air hole 11 and an air port 12, and the conversion assembly 4 is provided with a third through hole 41;

[0045] The pump body of this embodiment is used as an external pump. When inflating, the motor assembly 2 is started, the first through hole and the third through hole 41 are connected, and air enters the accommodating cavity from the air hole 11, passes through the motor assembly 2, and then passes through the conversion assembly 4 and the air port 12 in sequence before entering the product to be inflated;

[0046] When exhausting air, the stepper motor 5 drives the conversion assembly 4 to move through the connecting rod 3, pulls the conversion assembly 4 downward, and the second through hole and the third through hole 41 are connected. The air passes through the conversion assembly 4 and the motor assembly 2 from the air port 12 in sequence and is then exhausted from the air hole 11.

[0047] When the inflation state or the non-working state is restored, the stepping motor 5 drives the conversion assembly 4 to move through the connecting rod 3, so that the conversion assembly 4 is reset.

[0048] The connecting rod 3 includes a connecting portion 31 connected to the stepping motor 5 and an embedding portion 32 embedded in the conversion assembly 4 . The movement of the stepping motor 5 can drive the movement of the conversion assembly 4 .

[0049] The conversion assembly 4 includes an integrally formed through-hole portion 42, a fixing portion 43, and a wedge-shaped protrusion 44 disposed on the back of the through-hole portion 42. The third through-hole 41 is disposed on the through-hole portion 44. The thickness of the through-hole portion 44 is greater than that of the fixing portion 43. The fixing portion 43 is connected to the connecting rod 3. Specifically, an embedding hole 431 is disposed on the fixing portion 43, and the embedding portion 32 is fixed in the embedding hole 431. The wedge-shaped protrusion 44 is used to push open the ventilation bracket in the housing to realize the air extraction operation of the built-in pump.

[0050] A slider 45 is provided on the through hole portion 42, and a slide rail 20 is provided on the motor assembly 2. The slider 45 is embedded in the slide rail 20 to limit the conversion assembly 4 to prevent it from being displaced during movement.

[0051] The motor assembly 2 is also provided with a limit switch 21, and the thickness of the through hole portion 44 is greater than the thickness of the fixing portion 43 so as to reserve space for the limit switch 21. When the through hole portion 42 touches the contact of the limit switch 21, the stepper motor 5 is turned off, and at this time, the second through hole is connected with the third through hole 41, and the stepper motor 5 no longer moves downward.

[0052] The motor assembly 2 includes an upper cover 22, a middle cover 23, a lower cover 24, a fan blade 25, a motor 26, a power supply structure 27 and a PCBA board 28. The fan blade 25 is arranged in the space formed by the upper cover 22 and the middle cover 23, and the outlets of the upper cover 22 and the middle cover 23 form a first through hole, and the outlets of the middle cover 23 and the lower cover 24 form a second through hole. The middle cover 23 is provided with a through hole 231. The motor 26 passes through the hole of the upper cover 22 and is connected to the fan blade 25. The power supply structure 27 is connected to the motor 26 and the PCBA board 28 respectively. The housing 1 is also provided with a switch 18, and the PCBA board 28 is connected to the switch 18. The PCBA board 28 is provided with a voice control module. The utility model has a voice control function, and the air pump can be controlled to pump or inflate by voice. When the switch is pressed or the voice is input, the PCBA board 27 instructs the motor 25 to start, thereby driving the fan blade 24 to rotate to achieve inflation or extraction.

[0053] From top to bottom, the housing 1 includes a top cover 13, a housing body 14 and a lamp body 15. The lamp body 15 is connected to a circuit board 16 for controlling the on and off of the lamp body 15. A handle 17 is also provided on the top cover 13. The handle 17 is convenient for carrying and hanging.

[0054] When using,

[0055] 1. Click the switch button to start inflation, click it again to turn off inflation, or control the air pump to pump or inflate by voice commands such as "inflate" or "exhale";

[0056] 2. Click the button (or input "inflate" by voice) to start inflation. During inflation, the stepper motor 5 does not work, the first through hole is connected with the third through hole 41, and the gas enters the accommodating cavity from the air hole 11, and then enters the space between the middle cover 23 and the lower cover 24 from the second through hole, and then enters the space formed by the middle cover 23 and the upper cover 22 through the through hole 231, and then enters the inflatable product from the first through hole, the third through hole 41 and the air port 12 in sequence for inflation;

[0057] Click the button (or voice input "pump") to start pumping. When pumping, the stepper motor 5 starts to move, and drives the conversion assembly 4 to move downward along the slide rail 20 through the connecting rod 3. When the through hole portion 42 touches the contact of the limit switch 21, the stepper motor 5 is turned off. At this time, the second through hole and the third through hole 41 are connected, and pumping is carried out. The gas in the inflatable product enters from the air port 12, passes through the third through hole 41 and the second through hole in turn, and enters the space between the middle cover 23 and the lower cover 24, and then passes through the through hole 231 to enter the space formed by the middle cover 23 and the upper cover 22, and then enters the accommodating cavity from the first through hole, and is finally discharged from the air hole 11.

[0058] 3. After the air is exhausted, when it is necessary to inflate or stop the movement, the stepper motor 5 starts to move, and drives the conversion assembly 4 to move upward along the slide rail 20 through the connecting rod 3 until the first through hole and the third through hole 41 are connected.

[0059] Example 2

[0060] like Figures 7 to 11 As shown, the present embodiment provides a built-in pump, which includes the pump body 10 of Embodiment 1, and also includes an outer shell 6, a ventilation bracket 7 and an air-tight rubber nail 8. The pump body 10 is detachably arranged in the outer shell 6, and an air inlet channel is formed between the pump body 10 and the outer shell 6; when the pump body 10 and the outer shell 6 (the outer shell 6 and the inflatable product are welded together or integrally formed) are assembled together to inflate or exhaust the inflatable product, a built-in pump structure is formed, and the inflatable product can be directly inflated and exhausted.

[0061] The airtight plastic nail 8 is connected to the ventilation bracket 7, and the ventilation bracket 7 is arranged close to the conversion component 4. The housing 6 is provided with an air inlet and outlet 65, and the air inlet and outlet 65 is provided with an air mask 9 to prevent the thread ends, fur and the like in the inflatable product from sticking to the airtight plastic nail 8, and also to prevent the inflatable product from being scratched. The ventilation bracket 7 is arranged in the air inlet and outlet 65;

[0062] At this time, the air pump is used as a built-in pump. When inflating, the gas reaching the air port directly opens the airtight rubber nail 8 to inflate;

[0063] When exhausting air, the conversion assembly 4 pushes the ventilation bracket 7 away, and the gas passes through the gas cover 9 and the gas port 12 in sequence and then enters the accommodating chamber.

[0064] The ventilation bracket 7 includes an integrally formed bracket body 71 and a frame body 72, the airtight glue nail 8 includes a sealing body 81 and a rod body 82, the bracket body 71 is provided with a vent hole, the rod body 82 can be penetrated on the bracket body 71, the upper part of the frame body 72 is provided with a crossbar portion 721 and a chamfered portion 722 provided at at least one end of the crossbar portion 721, and the ventilation bracket 7 is connected with an elastic component. In the inflated state, the wedge-shaped protrusion 44 cooperates with the chamfered portion 722, and in the deflating state, the wedge-shaped protrusion 44 pushes the entire ventilation bracket 7 open.

[0065] The housing 6 includes a cover 61 and a main body 62. The main body 62 is made of a transparent material. When the lamp body 15 is lit, the main body 62 is transparent, presenting a good atmosphere. A protrusion 611 is provided on the lower surface of the cover 61. When the cover 61 is closed, the protrusion 611 presses the electric switch 102 on the pump body 10, and the pump body 10 is in a power-off state. When the cover 61 is opened, the switch is released, the power-off state is released, and the inflation or exhaust operation can be started;

[0066] The pump body 10 is provided with an undercut 101, and the air inlet and outlet 65 is provided with a groove 63 matching the undercut 101 to prevent the pump body 10 from being washed out by the air flow. In addition, the setting of the undercut 101 can also play a fool-proof role to prevent the pump body 10 from being misplaced.

[0067] The air inlet and outlet 65 is provided with a limiting annular groove 64 for placing a sealing ring. The sealing ring is provided to improve its sealing performance, so that air can be pumped out more thoroughly and there will be no problem of gas reflux during inflation.

[0068] At this time, the air pump is used as a built-in pump. When inflating, the cover body 61 is opened, the switch is released, the power-off state is released, and the button is clicked (or voice input "inflate") to start inflation. Air enters from the air inlet channel, the stepper motor 5 does not work, the first through hole and the third through hole 41 are connected, and the gas enters the accommodating cavity from the air hole 11, and then enters the space between the middle cover 23 and the lower cover 24 from the second through hole, and then enters the space formed by the middle cover 23 and the upper cover 22 through the through hole 231, and then enters from the first through hole, the third through hole 41 and the air port 12 in turn, and the gas breaks through the airtight rubber nail 8 to inflate the inflatable product;

[0069] When pumping air, click the button (or voice input "pump air") to start pumping air, and the stepper motor 5 starts to work, driving the conversion assembly 4 to move downward along the slide rail 20 through the connecting rod 3. When the through hole portion 42 touches the contact of the limit switch 21, the stepper motor 5 is turned off. In this process, the wedge-shaped protrusion 44 pushes open the entire ventilation bracket 7. At this time, the second through hole and the third through hole 41 are connected, and air is pumped out at this time. The gas in the inflatable product enters the air inlet and outlet 61 from the air mask 9, and then enters from the air port 12, passes through the third through hole 41 and the second through hole in turn, and enters the space between the middle cover 23 and the lower cover 24, and then passes through the through hole 231 to enter the space formed by the middle cover 23 and the upper cover 22, and then enters the accommodating cavity from the first through hole, and finally is discharged from the air hole 11 and the air inlet channel.

[0070] After the air extraction is completed, the stepper motor 5 starts to work, and drives the conversion assembly 4 to move upward along the slide rail 20 through the connecting rod 3. The ventilation bracket 7 is reset under the action of the elastic component, and the first through hole is connected with the third through hole 41.

[0071] In summary, the utility model provides a dual-purpose pump with convenient switching, which can realize free switching between vacuuming and inflation only by controlling the conversion component 4 through the stepper motor 5, that is, the switching between inflation and vacuuming is very convenient and can be controlled by voice, which is relatively intelligent.

[0072] In addition, the pump body 10 in the air pump can be directly used as an external pump to perform pumping and inflating operations for other inflatable products. When the pump body 10 is assembled with the outer shell 6, it forms a built-in pump structure, which can directly inflate and pump air for the inflatable product. It has a wide range of uses and powerful functions.

[0073] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also make appropriate changes and modifications to the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A dual-purpose pump with convenient switching, characterized in that: The pump body comprises a housing and a receiving cavity formed in the housing, a motor assembly, a connecting rod, a conversion assembly and a stepper motor are arranged in the receiving cavity, the stepper motor is connected to the conversion assembly through the connecting rod, a first through hole and a second through hole are arranged on the motor assembly, an air hole and an air port are arranged on the housing, and a third through hole is arranged on the conversion assembly; The pump body is used as an external pump. When inflating, the motor assembly is started, the first through hole and the third through hole are connected, and air enters the accommodating cavity from the air hole, passes through the motor assembly, and then passes through the conversion assembly and the air port in sequence before entering the product to be inflated; When exhausting air, the stepper motor drives the conversion assembly to move through the connecting rod, pulls the conversion assembly downward, and the second through hole and the third through hole are connected. The air passes through the conversion assembly and the motor assembly in sequence from the air port and is then exhausted from the air hole. When the inflated state or the non-working state is restored, the stepper motor drives the conversion assembly to move through the connecting rod to reset the conversion assembly.

2. The dual-purpose pump with easy switching according to claim 1, characterized in that: The connecting rod includes a connecting portion connected to the stepping motor and an embedding portion embedded in the conversion assembly.

3. The dual-purpose pump with easy switching according to claim 1, characterized in that: The conversion assembly includes an integrally formed through-hole portion, a fixing portion, and a wedge-shaped protrusion arranged on the back side of the through-hole portion, the third through-hole is arranged on the through-hole portion, the thickness of the through-hole portion is greater than the thickness of the fixing portion, and the fixing portion is connected to the connecting rod.

4. The conveniently switchable dual-purpose pump according to claim 3, characterized in that: The through hole portion is provided with a slider, the motor assembly is provided with a slide rail, and the slider is embedded in the slide rail.

5. The conveniently switchable dual-purpose pump according to claim 3, characterized in that: A limit switch is also provided on the motor assembly, and when the through hole portion touches the contact of the limit switch, the stepping motor is turned off.

6. The conveniently switchable dual-purpose pump according to claim 1, characterized in that: The motor assembly includes an upper cover, a middle cover, a lower cover, a fan blade, a motor, a power supply structure and a PCBA board. The fan blade is arranged in a space formed by the upper cover and the middle cover, and the outlets of the upper cover and the middle cover form the first through hole, and the outlets of the middle cover and the lower cover form the second through hole. The middle cover is provided with a through hole, and the motor is connected to the fan blade after passing through the hole of the upper cover. The power supply structure is connected to the motor and the PCBA board respectively. A switch is also provided on the shell, and the PCBA board is connected to the switch. A voice control module is provided on the PCBA board.

7. The conveniently switchable dual-purpose pump according to claim 1, characterized in that: From top to bottom, the shell includes a top cover, a shell body and a lamp body. The lamp body is connected to a circuit board for controlling the on and off of the lamp body. A handle is also provided on the top cover.

8. The dual-purpose pump with easy switching according to claim 1, characterized in that: The dual-purpose pump further comprises a shell, a ventilation bracket and an air-tight rubber nail, the pump body is detachably arranged in the shell, and an air inlet channel is formed between the pump body and the shell; The airtight glue nail is connected to the ventilation bracket, the ventilation bracket is arranged close to the conversion component, the shell is provided with an air inlet and outlet, the air inlet and outlet are provided with an air mask, and the ventilation bracket is arranged in the air inlet and outlet; At this time, the dual-purpose pump is used as a built-in pump. When inflating, the gas reaching the air port directly opens the airtight rubber nail to inflate; When exhausting air, the conversion component pushes open the ventilation bracket, and the gas passes through the gas mask and the gas port in sequence and then enters the accommodating chamber.

9. The dual-purpose pump with easy switching according to claim 8, characterized in that: The ventilation bracket includes an integrally formed bracket body and a frame body, the airtight glue nail includes a sealing body and a rod body, the bracket body is provided with a vent hole, the rod body can be passed through the bracket body, the upper part of the frame body is provided with a cross bar portion and a bevel portion provided at at least one end of the cross bar portion, and the ventilation bracket is connected with an elastic component.

10. The dual-purpose pump with easy switching according to claim 8, characterized in that: The housing comprises a cover and a main body, the main body is made of a transparent material, a protrusion is provided on the lower surface of the cover, when the cover is closed, the protrusion presses the electric switch in the pump body, and the pump body is in a shutdown state; The pump body is provided with an undercut, and the inner surface of the pump body is provided with a groove body matching the undercut; The air inlet and outlet are provided with a limiting annular groove for accommodating a sealing ring.

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