Simple dual-purpose pump for pumping and inflating

Abstract

The utility model belongs to the technical field of air pumps, and particularly relates to a simple air suction and inflation dual-purpose pump which comprises a pump body, the pump body comprises a shell and a containing cavity formed in the shell, a motor assembly, a push rod, a conversion assembly and a reset assembly are arranged in the containing cavity, and a first through hole and a second through hole are formed in the motor assembly. The shell is provided with a switching plate, an air hole and an air port, and the switching plate is provided with a third through hole; 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; when the switching plate is pushed, the switching plate drives the push rod to move, the switching assembly is pressed downwards, the second through hole is communicated with the third through hole, and air sequentially passes through the switching assembly and the motor assembly from the air port and then is extracted from the air hole. When the switching plate is pushed reversely, the switching plate drives the push rod to move, and the switching assembly is reset under the action of the reset assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of air pumps, and in particular relates to a simple pump for both pumping and inflating air. 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 simple dual-purpose pump for pumping and inflating, which can realize free switching between pumping and inflation only by pushing the switching plate, that is, the switching between inflation and pumping is very convenient, and since a motor and / or a solenoid valve are omitted, the cost is low.

[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 simple dual-purpose pump for pumping and inflating, in view of the shortcomings of the prior art. The pump can freely switch between pumping and inflating only by pushing the switching plate, that is, the switching between inflating and pumping is very convenient. Since a motor and / or a solenoid valve are omitted, the cost is low.

[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 simple pump for pumping and inflating includes a pump body, the pump body includes a shell and a receiving cavity formed in the shell, a motor assembly, a push rod, a conversion assembly and a reset assembly are arranged in the receiving cavity, the motor assembly is provided with a first through hole and a second through hole, the shell is provided with a switching plate, an air hole and an air port, and the conversion assembly is provided with a third through hole;

[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 the switching plate is pushed during air extraction, the switching plate drives the push rod to move, pressing the conversion assembly downward, so that the second through hole and the third through hole are connected, and air passes through the conversion assembly and the motor assembly from the air port in sequence and is then extracted from the air hole;

[0012] When the switching plate is pushed in the reverse direction, the switching plate drives the push rod to move, and the conversion component is reset under the action of the reset component.

[0013] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the push rod includes a limit plate, a limit column arranged on the upper surface of the limit plate and a vertical rod arranged on the lower surface of the limit plate, the limit column is provided with a limit hole, and the switching plate is provided with a column embedded in the limit hole; the shell is provided with a limit sliding hole in which the limit column can slide, and the shell is also provided with a limit groove in which the limit plate can slide.

[0014] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the conversion assembly includes an integrally formed first inclined portion, a groove portion, a first through hole portion and a first fixed portion, the first inclined portion cooperates with the push rod, the groove portion is located between the first inclined portion and the first through hole portion, the third through hole is arranged on the first through hole portion, a first wedge-shaped protrusion is arranged on the back side of the groove portion, the first fixed portion is arranged below the first through hole portion and embedded in the limiting boss of the shell, and the reset assembly is sleeved on the first fixed portion.

[0015] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the thickness of the groove in the groove portion is smaller than the thickness of the first through hole portion; the first inclined portion includes a first horizontal section, a second horizontal section and a first inclined section arranged between the first horizontal section and the second horizontal section, and a limiting baffle is arranged on one side of the first inclined section and the second horizontal section.

[0016] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the conversion assembly includes an integrally formed second inclined portion, a second through hole portion and a second fixed portion, a recessed portion is formed between the second inclined portion and the second through hole portion, and a second wedge-shaped protrusion is provided on the back of the recessed portion; the second inclined portion cooperates with the push rod, the third through hole is provided on the second through hole portion, the second fixed portion is provided below the second through hole portion and embedded in the limiting boss of the shell, and the reset assembly is sleeved on the second fixed portion.

[0017] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the second inclined portion includes a back plate and a block, the block includes a third horizontal section, a fourth horizontal section and a second inclined section arranged between the third horizontal section and the fourth horizontal section, and the third horizontal section is located above the fourth horizontal section.

[0018] As an improvement of the simple dual-purpose pump for pumping and inflating 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. A through hole is arranged on the middle cover, 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 arranged on the shell, and the PCBA board is connected to the switch.

[0019] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the shell is also provided with a handle, a lighting lamp, a type-C charging port and a charging and power indicator light.

[0020] As an improvement of the simple pump for pumping and inflating of the utility model, the air pump further comprises a shell, a ventilation bracket and an airtight 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;

[0021] The airtight glue nail is connected to the ventilation bracket, the ventilation bracket is arranged close to the conversion component, a large through hole is arranged on the shell, an air mask is arranged on the large through hole, and the ventilation bracket is arranged in the large through hole;

[0022] 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;

[0023] 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.

[0024] As an improvement of the simple dual-purpose pump for pumping and inflating of the utility model, the ventilation bracket includes an integrally formed bracket body and a frame body, the air-tight rubber 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.

[0025] Compared with the prior art, the simple dual-purpose pump for pumping and inflating provided by the utility model can realize free switching between pumping and inflating only by pushing the switching plate, that is, the switching between inflating and pumping is very convenient. Since a motor and / or a solenoid valve are omitted, the cost is low.

[0026] 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

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the utility model.

[0028] Figure 2 This is one of the schematic diagrams of the decomposition structure of Example 1 of the utility model.

[0029] Figure 3 This is the second schematic diagram of the decomposition structure of Example 1 of the utility model.

[0030] Figure 4 This is the third schematic diagram of the decomposition structure of Example 1 of the utility model.

[0031] Figure 5 It is a schematic diagram of the structure of the conversion component in Example 1 of the utility model.

[0032] Figure 6 This is a schematic diagram of the structure of the push rod in Example 1 of the utility model.

[0033] Figure 7 This is a schematic diagram of the combined structure of the conversion assembly, the push rod and the switch plate in Example 1 of the utility model.

[0034] Figure 8 This is one of the schematic diagrams of the decomposition structure of Example 2 of the present utility model.

[0035] Fig. 9 This is the second schematic diagram of the decomposition structure of Example 2 of the utility model.

[0036] Fig.10 It is a schematic diagram of the structure of the conversion component in Example 2 of the utility model.

[0037] Fig.11 It is a schematic diagram of the three-dimensional structure of Example 3 of the utility model.

[0038] Fig.12 This is one of the schematic diagrams of the decomposition structure of Example 3 of the utility model.

[0039] Fig.13 This is the second schematic diagram of the decomposition structure of Example 3 of the utility model.

[0040] Fig.14 This is the third schematic diagram of the decomposition structure of Example 3 of the utility model.

[0041] Fig.15 This is a schematic diagram of the decomposition structure of Example 4 of the utility model. DETAILED DESCRIPTION

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Example 1

[0046] like Figures 1 to 7As shown, this embodiment provides a simple pump for pumping and inflating, 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 push rod 3, a conversion assembly 4 and a reset assembly 5 are arranged in the receiving cavity, the motor assembly 2 is provided with a first through hole and a second through hole, the shell 1 is provided with a switching plate 6, an air hole 11 and an air port 12, and the conversion assembly 4 is provided with a third through hole 40;

[0047] The pump body is used as an external pump. When inflating, the motor assembly 2 is started, the first through hole and the third through hole 40 are connected, and the 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 turn before entering the product to be inflated;

[0048] When the air is pumped, the switch plate 6 is pushed, and the switch plate 6 drives the push rod 3 to move, pressing the conversion assembly 4 downward, so that the second through hole and the third through hole 40 are connected, and the air passes through the conversion assembly 4 and the motor assembly 2 from the air port 12 in sequence and is then pumped out from the air hole 11;

[0049] When the switch plate 6 is pushed in the reverse direction, the switch plate 6 drives the push rod 3 to move, and the conversion component 4 is reset under the action of the reset component 5.

[0050] In this embodiment, by pushing the switching plate 6, free switching between inflation and exhaust can be achieved without adding a motor or a solenoid valve, thus greatly reducing the cost.

[0051] The push rod 3 includes a limit plate 31, a limit column 32 arranged on the upper surface of the limit plate 31 and a vertical rod 33 arranged on the lower surface of the limit plate 31. The limit column 32 is provided with a limit hole 321, and the switching plate 6 is provided with a column 61 embedded in the limit hole 321. When the switching plate 6 is pushed, the limit column 32 is driven to move together, and then the vertical rod 33 is moved together; the shell 1 is provided with a limit sliding hole 13 in which the limit column 32 can slide, so as to limit the movement area of ​​the limit column 32, and the shell 1 is also provided with a limit groove 14 in which the limit plate 31 can slide, so as to further limit the movement area of ​​the push rod 3.

[0052] The conversion assembly 4 includes an integrally formed first inclined portion 41, a groove portion 42, a first through hole portion 43 and a first fixed portion 44. The first inclined portion 41 cooperates with the push rod 3. The groove portion 42 is located between the first inclined portion 41 and the first through hole portion 43. The third through hole 40 is arranged on the first through hole portion 43. A first wedge-shaped protrusion 45 is arranged on the back side of the groove portion 42. The first fixed portion 44 is arranged below the first through hole portion 43 and embedded in the limiting boss 10 of the shell 1. The reset assembly 5 is sleeved on the first fixed portion 44. When the switch plate 6 is pushed, the vertical rod 33 slides upward along the inclined portion 41, the entire conversion assembly 4 and the reset assembly 5 are pressed down, the third through hole 40 is connected with the second through hole, the groove portion 42 cooperates with the first through hole, and the air extraction state is turned on; when the switch plate 6 is pushed in the reverse direction, the vertical rod 33 slides downward along the inclined portion 41. At this time, under the elastic reset action of the reset assembly 5, the entire conversion assembly 4 bounces upward, the third through hole 40 is connected with the first through hole, and the inflation state is turned on. When the housing is added and assembled into a built-in pump, the first wedge-shaped protrusion 45 can push the ventilation bracket to achieve air extraction.

[0053] The thickness of the groove in the groove portion 42 is less than the thickness of the first through hole portion 43, so that a gap is formed between the first through hole and the groove portion 42 in the degassing state, which is convenient for gas flow; the first inclined portion 41 includes a first horizontal section 411, a second horizontal section 412, and a first inclined section 413 disposed between the first horizontal section 411 and the second horizontal section 412. The first inclined portion 41 is similar to a Z-shape as a whole. A limited stopper 414 is disposed on one side of the first inclined section 413 and the second horizontal section 412 to prevent the vertical rod 33 from deviating. The first horizontal section 411 is located above the second horizontal section 412. In the degassing state, the vertical rod 33 is located on the first horizontal section 411, and in the inflating state, the vertical rod 33 is located on the second horizontal section 412.

[0054] The motor assembly 2 includes an upper cover 21, a middle cover 22, a lower cover 23, a fan blade 24, a motor 25, a power supply structure 26 and a PCBA board 27. The fan blade 24 is arranged in the space formed by the upper cover 21 and the middle cover 22, and the outlets of the upper cover 21 and the middle cover 22 form a first through hole, the middle cover 22 is provided with a through hole 221, and the outlets of the middle cover 22 and the lower cover 23 form a second through hole. The motor 25 passes through the hole of the upper cover 21 and is connected to the fan blade 24. The power supply structure 26 is respectively connected to the motor 25 and the PCBA board 27. The housing 1 is also provided with a switch 15, and the PCBA board 27 is connected to the switch 15. When the switch 15 is pressed, the PCBA board 27 instructs the motor 25 to start, thereby driving the fan blade 24 to rotate to achieve inflation or degassing.

[0055] The housing 1 is also provided with a handle 16 , a lighting lamp, an SOS emergency band lamp, a type-C charging port 17 and a charging and power indicator light 18 .

[0056] In this embodiment, the moving direction of the switching plate 6 is parallel to the horizontal side of the housing 1 .

[0057] The main performances of this embodiment are:

[0058] First, this embodiment has the dual functions of inflation and degassing;

[0059] Second, this embodiment is provided with a lighting lamp and an SOS emergency band lamp for temporary lighting;

[0060] Third, the handle provided in this embodiment is convenient for carrying and hanging;

[0061] Fourth, this embodiment is provided with a type-C charging port and a power / charging indicator light.

[0062] When using,

[0063] 1. Click the switch button to start inflation, and click it again to turn off inflation;

[0064] 2. Click the button to start inflation. When inflating, the vertical rod 33 is located on the second horizontal section 412, the first through hole and the third through hole 40 are connected, and the gas enters the accommodating cavity from the air hole 11, and then enters the space between the middle cover 22 and the lower cover 23 from the second through hole, and then enters the space formed by the middle cover 22 and the upper cover 21 through the through hole 221, and then enters the inflatable product from the first through hole, the third through hole 40 and the air port 12 in sequence for inflation;

[0065] Push the conversion plate 6 to DEF, and the vertical rod 33 moves upward from the second horizontal section 412 along the first inclined section 413 until it reaches the first horizontal section 411. The entire conversion assembly 4 is pressed down, and the second through hole is connected with the third through hole 40. At this time, air is pumped out, and the gas in the inflatable product enters from the air port 12, passes through the third through hole 40 and the second through hole in turn, and enters the space between the middle cover 22 and the lower cover 23, and then passes through the through hole 221 to enter the space formed by the middle cover 22 and the upper cover 21, and then enters the accommodating cavity from the first through hole through the groove portion 42, and is finally discharged from the air hole 11.

[0066] The conversion plate 6 is pushed in the reverse direction, and the vertical rod 33 moves downward from the first horizontal section 411 along the first inclined section 413 until it reaches the second horizontal section 412. The entire conversion assembly 4 is reset under the action of the reset assembly 5, and the first through hole is connected to the third through hole 40.

[0067] 3. When inflating or deflating, you can start the switch 15 first, or you can adjust the conversion plate 6 first and then start the switch 15.

[0068] 4. Double-click the button to start the lighting. The lighting has three modes: low-light, high-light and SOS emergency band. After turning on the lighting, each click of the button switches to the next mode, and the light turns off after a single click.

[0069] Example 2

[0070] In this embodiment, the moving direction of the switching plate 6 is parallel to the horizontal side of the housing 1 .

[0071] like Figure 8-10 As shown, different from the embodiment 1, the conversion assembly 4 includes an integrally formed second inclined portion 46, a second through hole portion 47 and a second fixing portion 48, a recessed portion 49 is formed between the second inclined portion 46 and the second through hole portion 47, and a second wedge-shaped protrusion 410 is provided on the back of the recessed portion 49; the second inclined portion 46 cooperates with the push rod 3, the third through hole 40 is provided on the second through hole portion 47, the second fixing portion 48 is provided below the second through hole portion 14 and embedded in the limiting boss 10 of the housing 1, and the reset assembly 5 is sleeved on the second fixing portion 48;

[0072] The second inclined portion 46 includes a back plate 461 and a block 462. The block 462 includes a third horizontal section 4621, a fourth horizontal section 4622, and a second inclined section 4623 disposed between the third horizontal section 4621 and the fourth horizontal section 4622. The third horizontal section 4621 is located above the fourth horizontal section 4622.

[0073] The rest is the same as in Example 1 and will not be described again here.

[0074] Example 3

[0075] like Figure 11-14 As shown, this embodiment provides a built-in pump, including the air pump structure (pump body) of embodiment 1, and also including a shell 7, a ventilation bracket 8 and an airtight rubber nail 9. The pump body 20 is detachably arranged in the shell 7, and an air inlet channel is formed between the pump body 20 and the shell 7; the airtight rubber nail 9 is connected to the ventilation bracket 8, and the ventilation bracket 8 is arranged close to the conversion component 5. The shell 7 is provided with a large through hole 71, and an air mask 30 is arranged on the large through hole 71 to prevent the thread ends, fur and the like in the inflatable product from sticking to the airtight rubber nail 9, and the ventilation bracket 8 is arranged in the large through hole 71; the shell 7 includes a cover 72 and a shell 73. When the pump body 20 and the shell 7 (the shell 7 and the inflatable product are fused together or integrally formed) are assembled together to inflate and exhaust the inflatable product, a built-in pump structure is formed, and the inflatable product can be directly inflated and exhausted.

[0076] At this time, the air pump is used as a built-in pump. When inflating, the cover body 72 is opened, and air enters from the air inlet channel. The vertical rod 33 is located on the second horizontal section 412, and the first through hole and the third through hole 40 are connected. The gas enters the accommodating cavity from the air hole 11, and then enters the space between the middle cover 22 and the lower cover 23 from the second through hole, and then enters the space formed by the middle cover 22 and the upper cover 21 through the through hole 221, and then directly punches through the airtight rubber nail 9 from the first through hole, the third through hole 40 and the air port 12 in sequence to enter the inflatable product for inflation;

[0077] When vacuuming, open the cover body 72, push the conversion plate 6 to the DEF position, and the vertical rod 33 moves upward from the second horizontal section 412 along the first inclined section 413 until it reaches the first horizontal section 411. The entire conversion assembly 4 is pressed down, and the first wedge-shaped protrusion 45 pushes open the ventilation bracket 8, and makes the second through hole and the third through hole 40 connected. At this time, vacuuming is carried out, and the gas in the inflatable product enters from the large through hole 71, and then passes through the air port 12, the third through hole 40, and the second through hole in turn to enter the space between the middle cover 22 and the lower cover 23, and then passes through the through hole 221 to enter the space formed by the middle cover 22 and the upper cover 21, and then enters the accommodating cavity from the first through hole through the groove portion 42, and finally is discharged from the air hole 11 and discharged through the air inlet channel.

[0078] The ventilation bracket 8 includes an integrally formed bracket body 81 and a frame body 82, the airtight glue nail 9 includes a sealing body 91 and a rod body 92, the bracket body 81 is provided with a vent hole, the rod body 92 can be penetrated on the bracket body 81, the upper part of the frame body 82 is provided with a crossbar portion 821 and a chamfered portion 822 provided at at least one end of the crossbar portion 821, and the ventilation bracket 8 is connected with an elastic component 50. In the inflated state, the first wedge-shaped protrusion 45 cooperates with the chamfered portion 822, and in the deflating state, the first wedge-shaped protrusion 45 pushes the entire ventilation bracket 8 open.

[0079] Push the conversion plate 6 in the reverse direction, and the vertical rod 33 moves downward from the first horizontal section 411 along the first inclined section 413 until it reaches the second horizontal section 412. The entire conversion assembly 4 is reset under the action of the reset assembly 5, the first through hole is connected with the third through hole 40, and the ventilation bracket 8 is reset under the action of the elastic assembly 50.

[0080] Example 4

[0081] like Fig.15 As shown, the difference from Example 3 is that the pump body has the pump body structure of Example 2, and the rest is the same as Example 3 and will not be repeated here.

[0082] The rest is the same as in Example 3 and will not be described again here.

[0083] In summary, the simple dual-purpose pump for pumping and inflating provided by the utility model can realize free switching between pumping and inflating only by pushing the switching plate 6, that is, the switching between inflating and pumping is very convenient. Since a motor and / or a solenoid valve are omitted, the cost is low.

[0084] 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.

[0085] 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 simple pump for both pumping and inflating, characterized by: The pump body comprises a housing and a receiving cavity formed in the housing, a motor assembly, a push rod, a conversion assembly and a reset assembly are arranged in the receiving cavity, a first through hole and a second through hole are arranged on the motor assembly, a switching plate, 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 the switching plate is pushed during air extraction, the switching plate drives the push rod to move, pressing the conversion assembly downward, so that the second through hole and the third through hole are connected, and air passes through the conversion assembly and the motor assembly from the air port in sequence and is then extracted from the air hole; When the switching plate is pushed in the reverse direction, the switching plate drives the push rod to move, and the conversion component is reset under the action of the reset component.

2. The simple pump for pumping and inflating air according to claim 1, characterized in that: The push rod includes a limit plate, a limit column arranged on the upper surface of the limit plate and a vertical rod arranged on the lower surface of the limit plate, the limit column is provided with a limit hole, and the switching plate is provided with a column embedded in the limit hole; the shell is provided with a limit sliding hole in which the limit column can slide, and the shell is also provided with a limit groove in which the limit plate can slide.

3. The simple pump for pumping and inflating air according to claim 1, characterized in that: The conversion assembly includes an integrally formed first inclined portion, a groove portion, a first through hole portion and a first fixed portion, the first inclined portion cooperates with the push rod, the groove portion is located between the first inclined portion and the first through hole portion, the third through hole is arranged on the first through hole portion, and a first wedge-shaped protrusion is arranged on the back side of the groove portion, the first fixed portion is arranged below the first through hole portion and embedded in the limiting boss of the shell, and the reset assembly is sleeved on the first fixed portion.

4. The simple pump for pumping and inflating air according to claim 3 is characterized in that: The thickness of the groove in the groove portion is less than the thickness of the first through hole portion; the first inclined portion includes a first horizontal section, a second horizontal section and a first inclined section arranged between the first horizontal section and the second horizontal section, and a limiting baffle is arranged on one side of the first inclined section and the second horizontal section.

5. The simple pump for pumping and inflating air according to claim 1, characterized in that: The conversion component includes an integrally formed second inclined portion, a second through hole portion and a second fixed portion, a recessed portion is formed between the second inclined portion and the second through hole portion, and a second wedge-shaped protrusion is arranged on the back side of the recessed portion; the second inclined portion cooperates with the push rod, the third through hole is arranged on the second through hole portion, the second fixed portion is arranged below the second through hole portion and embedded in the limiting boss of the shell, and the reset component is sleeved on the second fixed portion.

6. The simple pump for pumping and inflating air according to claim 5, characterized in that: The second inclined portion includes a back plate and a block, the block includes a third horizontal segment, a fourth horizontal segment and a second inclined segment disposed between the third horizontal segment and the fourth horizontal segment, and the third horizontal segment is located above the fourth horizontal segment.

7. The simple pump for pumping and inflating air 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 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.

8. The simple pump for pumping and inflating air according to claim 1, characterized in that: The shell is also provided with a handle, a lighting lamp, a type-C charging port and a charging and power indicator light.

9. The simple pump for pumping and inflating air 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, a large through hole is arranged on the shell, an air mask is arranged on the large through hole, and the ventilation bracket is arranged in the large through hole; 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.

10. The compact dual-purpose pump for pumping and inflating air according to claim 9, 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.

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