Internal and external multipurpose pump

Abstract

The utility model provides an internal and external multipurpose pump which comprises a shell and an air pump arranged in an installation cavity of the shell, the shell comprises a seat body and an end cover movably connected to the seat body, a switch assembly is rotatably installed on the end cover, and a part of the structure of the switch assembly extends into the installation cavity and is connected with the air pump. The rotating shaft is used for driving the air pump to be switched between the inflation position and the deflation position through rotation. According to the technical scheme, the inflation and deflation functions of the air pump can be manually switched under the condition that the end cover is not opened, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of air pumps, in particular to an internally and externally mounted multi-purpose pump. Background Art

[0002] With the rise of outdoor activities, inflatable products are now widely used, such as inflatable beds, etc. In order to inflate the inflatable products and achieve the effect of saving time and effort, air pumps are usually used to inflate the inflatable products.

[0003] At present, an internal and external multi-purpose pump is usually used to inflate and deflate inflatable products such as inflatable beds. The internal and external multi-purpose pump includes an outer shell and an air pump arranged in the outer shell. When the air pump and the outer shell are combined to inflate and deflate the inflatable product, an internal pump is formed. The air pump can also be drawn out from the outer shell for use alone, at which time it is equivalent to an external pump.

[0004] In the related art, the internal and external multi-purpose pump generally has the functions of inflation and deflation at the same time. The common ways to switch the inflation and deflation functions include setting a switching mechanism and a driving motor in the housing of the internal and external multi-purpose pump, setting a manual switching mechanism on the air pump, and taking the air pump out of the housing and then reinstalling it into the housing after changing the direction, etc. The above operation methods have the problems of complex structure or inconvenient operation, and the air pump can often be started only when the housing end cover is opened. Utility Model Content

[0005] The utility model aims at least to provide an internal and external multi-purpose pump which is convenient for manually switching the inflation and deflation functions.

[0006] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0007] The cam is configured to move the cam face to the top of the air pump, wherein the cam face is configured to move the cam face in the air pump and the air pump has a first position, a second position and a third position ...

[0008] In some embodiments, the switch assembly includes a knob and a linkage rod; the knob is rotatably mounted on the end cover, one end of the linkage rod is offsetly connected to the knob, and the other end of the linkage rod extends into the mounting cavity and is inserted into the sliding groove on the upper portion of the air pump.

[0009] In some embodiments, the end cover includes a face cover and a fixing plate, the fixing plate is connected to the side of the face cover facing the air pump, the face cover is provided with a circular hole, the fixing plate is provided with a limiting hole opposite to the circular hole, the knob is rotatably installed in the circular hole, the linkage rod passes through the limiting hole and extends into the installation cavity, and the linkage rod can rotate along an arc in the limiting hole.

[0010] In some embodiments, the limiting hole includes a semicircular contour and a protruding portion protruding from the hole wall at the center of the semicircular contour, and the protruding portion protrudes inside the limiting hole in a direction away from the hole wall at the center.

[0011] In some embodiments, the end of the protrusion is in an arc shape, and the connection position between the protrusion and the hole wall of the limiting hole is an arc transition.

[0012] In some embodiments, the limiting hole is an arc-shaped strip hole.

[0013] In some embodiments, the switch assembly further includes a limit member and a positioning elastic member, a horizontal receiving groove is provided in the knob, a through hole connected to the receiving groove is provided on the side wall of the knob, the limit member is slidably provided in the receiving groove and one end thereof extends outward from the through hole, a limit portion is provided on the circumference of the limit member for limiting the movement of the limit member outward from the through hole, the positioning elastic member is located in the receiving groove, the positioning elastic member is used to push the limit member so that one end thereof protrudes out of the through hole, and a plurality of positioning holes distributed along the circumference of the knob for allowing the limit member to be inserted are provided in the end cover.

[0014] In some embodiments, a power start button is provided on the top of the air pump, and two start mechanisms are provided on the end cover at intervals. The two start mechanisms are respectively opposite to the power start button when the air pump is in the second position and the third position to start the air pump.

[0015] In some embodiments, the start mechanism includes an elastic convex contact member, and the elastic convex contact member is used to abut against the power start button when the air pump is located at the second position or the third position.

[0016] In some embodiments, the start mechanism includes a button disposed on the end cover, and the button is used to press the power start key when the air pump is located in the second position or the third position.

[0017] In some embodiments, one side of the end cover is rotatably connected to the base body, and a slot is provided on the other side of the end cover. A locking assembly is provided on the base body, and the locking assembly includes a mounting seat, a push rod, a latch tongue and a first elastic member. The mounting seat is provided with a accommodating cavity, a first opening and a second opening. The first opening is opened on the top surface of the mounting seat, and the second opening is opened on the side of the mounting seat facing the end cover. The latch tongue is slidably arranged in the accommodating cavity, and the latch tongue protrudes from the accommodating cavity from the second opening for insertion into the slot. The push rod is connected to the latch tongue and protrudes from the mounting seat from the first opening, and the push rod is used to drive the latch tongue to slide.

[0018] In some embodiments, the air inlet and the air outlet are both equipped with valve components that can be triggered to open by an air pump. A sealing ring is sleeved around the valve plate of the valve component to seal the gap between the valve plate and the air inlet or the air outlet.

[0019] The above-mentioned technical scheme of the utility model arranges a switch assembly on the end cover of the internal and external multi-purpose pump, so that the inflation and deflation functions of the air pump can be manually switched without opening the end cover. The structure is simple and the operation is convenient. When a starting mechanism is provided, the air pump can also be started while the airway is connected, so the inflation efficiency is higher and the use is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of an internal and external multi-purpose pump in an embodiment of the utility model.

[0021] Figure 2 Shown is a schematic diagram of the seat body and outer cover in an embodiment of the present utility model.

[0022] Figure 3 Shown is an exploded schematic diagram of the end cover in an embodiment of the present utility model.

[0023] Figure 4 Shown is a schematic diagram of a locking assembly in an embodiment of the present utility model.

[0024] Figure 5 Shown is an exploded schematic diagram of the knob and the end cover in an embodiment of the utility model.

[0025] Figure 6 It is a schematic exploded view of a pipe clamping assembly in an embodiment of the present invention.

[0026] Figure 7 Shown is an exploded schematic diagram of the seat body and valve assembly in an embodiment of the present utility model.

[0027] Figure 8 Shown is a schematic diagram of an air pump in an embodiment of the present utility model.

[0028] Fig. 9 Shown is a cross-sectional schematic diagram of the internal and external multi-purpose pumps in the embodiment of the utility model during inflation.

[0029] Fig.10 Shown is a cross-sectional schematic diagram of the internal and external multi-purpose pumps in the embodiment of the utility model when deflation occurs.

[0030] Component number description

[0031] 10 base

[0032] 101 Mounting cavity

[0033] 102 Air Inlet

[0034] 103 Vent

[0035] 104 Bracket

[0036] 105 Cover

[0037] 106 articulated seat

[0038] 107 Bump

[0039] 11. Cover

[0040] 110 Shaft

[0041] 111 Card slot

[0042] 112 Guide block

[0043] 113 round hole

[0044] 114 first contact portion

[0045] 115 Positioning hole

[0046] 116 Limiting slot

[0047] 12 Fixing plate

[0048] 121 Limiting hole

[0049] 122 second contact portion

[0050] 123 Third contact portion

[0051] 124 Connectors

[0052] 125 Contact

[0053] 126 raised part

[0054] 13 Ventilation holes

[0055] 20 Mounting Block

[0056] 201 Accommodation chamber

[0057] 202 First Opening

[0058] 203 Second Opening

[0059] 21 Putter

[0060] 22 Tab

[0061] 23 first elastic member

[0062] 30 Knob

[0063] 301 Boss

[0064] 302 Container

[0065] 31 Linkage rod

[0066] 32 Handle

[0067] 33 Reinforcement

[0068] 34 Positioning elastic member

[0069] 35 First column

[0070] 36 Second column

[0071] 37 Positioning piece

[0072] 40 Gasket

[0073] 41 Sealing elastic parts

[0074] 42 Valve body

[0075] 43 Valve plate

[0076] 44 Column core

[0077] 50 Pump casing

[0078] 501 Inlet

[0079] 502 Inflatable port

[0080] 503 runner frame

[0081] 504 Guide Strip

[0082] 505 Gas flow channel

[0083] 506 Chute

[0084] 507 Handle

[0085] 508 Power Interface

[0086] 51 Motor

[0087] 52 Fan Blades

[0088] 53 Power start button

[0089] 54 illuminated buttons DETAILED DESCRIPTION

[0090] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0091] See also Figure 1-Figure 10 It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the utility model, and the drawings only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0092] First embodiment

[0093] like Figure 1 and Figure 2 As shown, this embodiment provides an internal and external multi-purpose pump, which includes a housing, a switch assembly, a valve assembly and an air pump. The housing is provided with an installation cavity 101, and opposite sides of the housing are respectively provided with an air inlet 102 and an air outlet 103, and the installation cavity 101 is connected to the outside through the air inlet 102 and the air outlet 103. There are two valve assemblies, which are respectively provided at the air inlet 102 and the air outlet 103, and are used to control the opening and closing of the air inlet 102 and the air outlet 103.

[0094] The air pump is installed in the installation cavity 101 and can slide between the air inlet 102 and the air outlet 103. The air pump has a first position, a second position and a third position in the installation cavity 101. The air pump is in the middle position of the installation cavity 101 as the first position, the air pump is located near the air outlet 103 as the second position, and the air pump is located near the air inlet 102 as the third position. The second position and the third position are the two end limit positions of the air pump in the installation cavity 101. When the air pump is in the second position or the third position, the air pump triggers the corresponding valve assembly to open. For example, when the air pump is in the second position, the internal and external multi-purpose pumps are used for inflation; when the air pump is in the third position, the internal and external multi-purpose pumps are used for deflation; and when the air pump is in the first position, the internal and external multi-purpose pumps are in a stopped working state.

[0095] The switch assembly is rotatably connected to the housing, and a portion of the switch assembly extends into the installation cavity 101 to connect with the air pump. The switch assembly can drive the air pump to switch between the first position, the second position and the third position.

[0096] The housing includes a seat body 10 and an end cover, a mounting cavity 101 is provided in the seat body 10, and an air inlet 102 and an air outlet 103 are provided on opposite sides of the seat body 10. A bracket 104 for supporting the valve assembly is provided in the air inlet 102 and the air outlet 103 of the seat body 10, respectively, and two outer covers 105 are provided on the outer side of the seat body 10. The outer covers 105 are hollow structures, and the two outer covers 105 are respectively provided on the two valve assemblies to protect the valve assemblies.

[0097] In this embodiment, the end cover is rotatably connected to the base body 10. Specifically, the base body 10 is provided with a hinge seat 106, and one end of the end cover is provided with a rotating shaft 110, and the rotating shaft 110 is rotatably connected to the hinge seat 106. When the end cover is rotatably covered in the installation cavity 101, the end cover seals the air pump in the shell.

[0098] like Figure 1 and Figure 4 As shown, in order to prevent the end cover from flipping over arbitrarily relative to the seat body 10, the other end of the end cover is connected to the seat body 10 in a lockable and unlockable manner. In this embodiment, the internal and external multi-purpose pump includes a locking assembly, which is arranged on the top surface of the seat body 10 and is used to lock the end cover when the end cover is arranged on the seat body 10. The locking assembly includes a mounting seat 20, a push rod 21, a latch 22 and a first elastic member 23. The mounting seat 20 is arranged opposite to the hinge seat 106, and the mounting seat 20 is provided with a receiving cavity 201, a first opening 202 and a second opening 203. The first opening 202 is opened on the top surface of the mounting seat 20, and the second opening 203 is opened on the side of the mounting seat 20 facing the end cover. The first opening 202 and the second opening 203 are both connected to the receiving cavity 201, and the latch 22 is horizontally slidably arranged in the receiving cavity 201, and the latch 22 protrudes from the second opening 203 to the receiving cavity 201 for clamping the end cover. The first elastic member 23 can be a spring, and can be one or more. The first elastic member 23 is disposed in the accommodating cavity 201, and the two ends of the first elastic member 23 are respectively in contact with the cavity wall of the accommodating cavity 201 and the latch 22, and the first elastic member 23 is used to make the latch 22 protrude from the accommodating cavity 201 to be elastically engaged with the end cover. The push rod 21 is connected to the latch 22 and the push rod 21 protrudes from the top surface of the mounting seat 20 from the first opening 202, and the push rod 21 is used to drive the latch 22 to slide relative to the mounting seat 20.

[0099] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, it can be understood that a slot 111 engaged with the latch tongue 22 is provided on the end surface of the end cover facing the mounting seat 20, and a guide portion 112 is also provided on the end cover, and the guide portion 112 is provided below the slot 111, and the guide portion 112 has an inclined surface that matches the latch tongue 22. When the end cover is rotated so that the end cover is covered on the seat body 10, the guide portion 112 first abuts against the latch tongue 22, and the latch tongue 22 is compressed into the accommodating cavity 201 under the action of the inclined surface. When the end cover is rotated into place, the latch tongue 22 protrudes into the slot 111 under the action of the first elastic member 23 to lock the end cover. When the end cover needs to be opened, the push rod 21 is pushed so that the push rod 21 drives the latch tongue 22 to move into the accommodating cavity 201, and then it can be released to open the end cover.

[0100] In other embodiments, the locking assembly includes a mounting seat 20, a latch tongue 22 and a first elastic member 23. The difference from the above embodiment with a push rod 21 is that the latch tongue 22 is stepped, the large end of the latch tongue 22 is used to limit the latch tongue 22 in the accommodating cavity 201, the small end of the latch tongue 22 is used to be inserted in the slot 111, and the lower side of the small end of the latch tongue 22 is provided with an inclined surface, which is used to make the latch tongue 22 escape from the slot 111. When the end cover is flipped open, the slot wall of the slot 111 pushes the latch tongue 22 out of the slot 111 through the inclined surface on the latch tongue 22, thereby unlocking the end cover.

[0101] The top and bottom structures of the switch assembly protrude from the upper and lower sides of the end cover, respectively. The top structure of the switch assembly is used for the operator to perform a rotating operation, and the bottom structure of the switch assembly is used to connect the air pump to drive the air pump to slide in the seat body 10. For example, a groove structure is provided on the air pump, and when the end cover is rotated and set on the seat body 10, the bottom structure of the switch assembly is inserted into the groove structure on the air pump. Since the air pump and the switch assembly are connected through the groove structure, it is convenient to connect and separate the air pump and the switch assembly at any time. A space for accommodating the switch assembly is provided on the end cover, and the switch assembly is arranged in the space. The end cover is provided with a structure for limiting the switch assembly in the space, so that the switch assembly rotates relative to the end cover and does not separate from the end cover. Specifically, the end cover includes a face cover 11 and a fixing plate 12, and the face cover 11 and the fixing plate 12 are both provided with a vent 13, a slot 111 and a rotating shaft 110 are respectively provided on opposite sides of the face cover 11, a guide portion 112 is provided on the face cover 11, and a round hole 113 is provided on the face cover 11. The face cover 11 is provided with a first abutting portion 114 on one side of the base body 10 and around the circular hole 113. The first abutting portion 114 can be formed by the hole wall of the circular hole 113 extending downward. The fixing plate 12 is connected to the side of the face cover 11 facing the base body 10. A limiting hole 121 is provided on the fixing plate 12. The limiting hole 121 corresponds to the circular hole 113. The middle position of the limiting hole 121 corresponds to the first position, and the two ends of the limiting hole 121 correspond to the second position and the third position respectively. The top surface of the fixing plate 12 and the surrounding side of the limiting hole 121 are provided with a second abutting portion 122 and a third abutting portion 123 arranged at intervals. The second abutting portion 122 surrounds the outer side of the third abutting portion 123. Among them, the first abutting portion 114, the second abutting portion 122 and the third abutting portion 123 can be circular rings or a plurality of arc blocks arranged at intervals.

[0102] The switch assembly includes a knob 30, a linkage rod 31 and a handle 32. A radial boss 301 is convexly provided on the circumference of the knob 30. The knob 30 is rotatably arranged in the circular hole 113 of the cover 11. The knob 30 may be a cylindrical shell. The knob 30 is rotatably sleeved on the third abutting portion 123. The bottom surface of the radial boss 301 abuts against the second abutting portion 122, and the top surface of the radial boss 301 abuts against the first abutting portion 114. The knob 30 is installed on the end cover under the action of the first abutting portion 114 and the second abutting portion 122. In other embodiments, the first abutting portion 114 is not required on the face cover 11, and the second abutting portion 122 and the third abutting portion 123 are not required on the fixing plate 12. Instead, detachable fixing rings are provided at both ends of the knob 30. The diameter of the fixing ring is larger than the diameter of the knob 30. When the knob 30 is rotated in the circular hole 113 of the face cover 11, the fixing rings are respectively installed at both ends of the knob 30. The two fixing rings abut against the upper and lower surfaces of the face cover 11, and the knob 30 is limited on the face cover 11 by the two fixing rings.

[0103] The linkage rod 31 is a columnar structure, one end of the linkage rod 31 is connected to the side of the knob 30 facing the fixed plate 12, and the linkage rod 31 is offset, that is, the center line of the linkage rod 31 does not coincide with the center line of the knob 30, and the other end of the linkage rod 31 passes through the limiting hole 121 and is inserted into the slot structure on the air pump, and the linkage rod 31 and the slot structure are in clearance. When the air pump is in the first position, the linkage rod 31 is located in the middle position of the limiting hole 121, and when the air pump is in the second position or the third position, the linkage rod 31 is located at the end position of the limiting hole 121. In this embodiment, the linkage rod 31 and the knob 30 are connected by a reinforcing rib 33. In order to make the structure more solid, a plurality of reinforcing ribs 33 are connected between the linkage rod 31 and the knob 30, and a plurality of reinforcing ribs 33 are arranged on the circumference of the linkage rod 31. The handle 32 is connected to the top surface of the knob 30 and protrudes from the surface cover 11. When the knob 30 is rotated by the handle 32, the knob 30 drives the linkage rod 31 to rotate. At this time, the linkage rod 31 drives the air pump to switch between the first position, the second position and the third position.

[0104] In this embodiment, the limiting hole 121 includes a semicircular profile and a protrusion 126 protruding from the hole wall at the center of the circle, and the protrusion 126 protrudes in the direction away from the hole wall at the center of the circle inside the limiting hole 121. Preferably, the end of the protrusion 126 is an arc shape, and preferably the connection position between the protrusion 126 and the hole wall of the limiting hole 121 is an arc transition, so that the limiting hole 121 is ω-shaped. The positions of the two ends of the limiting hole 121 correspond to the second position and the third position respectively. When the linkage rod 31 rotates to the end position of the limiting hole 121, the protrusion 126 acts as a stopper for the side of the linkage rod 31. For example, when the internal and external multi-purpose pumps are subjected to external impact and vibration, the protrusion 126 acts as a stopper for the side of the linkage rod 31. The protrusion 126 limits the shaking of the linkage rod 31 within the end range of the limiting hole, so that the linkage rod 31 is not easy to slide from the end position of the limiting hole 121 to the middle position of the limiting hole 121, so as to enhance the limitation of the knob 30. In other embodiments, the limiting hole 121 can also be an arc-shaped strip hole. Figure 3 , Figure 5 and Figure 6As shown, in order to limit the air pump, the air pump can stop at the first position, the second position or the third position. The switch assembly also includes a limiter and a positioning elastic member 34. A horizontally arranged accommodating groove 302 is provided in the knob 30, and a through hole connected to the accommodating groove 302 is provided on the side wall of the knob 30. The limiter is slidably arranged in the accommodating groove 302 and one end thereof extends out of the through hole. A limit portion is provided on the side of the limiter, and the limit portion is located in the accommodating groove 302 to limit the limiter in the accommodating groove 302. The positioning elastic member 34 is a spring, and the positioning elastic member 34 is sleeved on the limiter and the two ends of the positioning elastic member 34 respectively abut the groove wall and the limit portion of the accommodating groove 302. The above-mentioned end of the limiter extends outward from the accommodating groove 302 through the through hole under the action of the positioning elastic member 34. In other embodiments, a hollow groove is provided at the end of the limiting member located in the accommodating groove 302, one end of the positioning elastic member 34 is provided in the hollow groove, and both ends of the positioning elastic member 34 abut against the groove wall of the accommodating groove 302 and the groove wall of the hollow groove respectively.

[0105] Specifically, the accommodating groove 302 is an accommodating space formed by a plurality of reinforcing ribs 33. The limiting member includes a first section column 35, a second section column 36 and a positioning piece 37 (i.e., a limiting portion). The first section column 35 and the second section column 36 are respectively connected to the two ends of the positioning piece 37. The diameter of the positioning piece 37 is larger than the diameter of the through hole. The second section column 36 and the positioning piece 37 are located in the accommodating groove 302. The end of the first section column 35 away from the positioning piece 37 extends outward from the through hole. The positioning elastic member 34 is sleeved on the second section column 36, and the two ends of the positioning elastic member 34 abut against the reinforcing ribs 33 and the positioning piece 37 respectively. Since the diameter of the positioning piece 37 is larger than the diameter of the through hole, the limiting member is positioned in the accommodating groove 302.

[0106] The inner side of the first abutment portion 114 is evenly distributed with a plurality of positioning holes 115, and the plurality of positioning holes 115 correspond to the first position, the second position and the third position of the air pump, respectively. When the air pump is located at the first position, the first section column 35 of the limiting member is inserted into the corresponding positioning hole 115, and at this time, the positioning hole 115 limits the knob 30 by limiting the limiting member to prevent the knob 30 from rotating, thereby preventing the air pump from sliding randomly. When the knob 30 is rotated to move the air pump from the first position to the second position, the first section column 35 of the limiting member first disengages from the positioning hole 115 corresponding to the first position, and at this time, the limiting member and the positioning elastic member 34 are both squeezed, and then when the air pump moves to the second position, the positioning elastic member 34 releases the elastic force to allow the first section column 35 of the limiting member to be inserted into the positioning hole 115 corresponding to the second position. Similarly, when the air pump moves to the third position, the first section column 35 of the limiting member can be inserted into the positioning hole 115 corresponding to the third position.

[0107] In order to facilitate the first section column 35 to be separated from the positioning hole 115, the end of the first section column 35 can be a curved head, and the two opposite hole walls of the positioning hole 115 are respectively provided with transition slopes or transition curved surfaces.

[0108] like Figure 2 and Figure 5 As shown, in order to prevent the end cover from swinging left and right when the knob 30 is rotated, a protrusion 107 is respectively provided on the opposite sides of the inner wall of the base body 10, and a limiting groove 116 is provided on the surface cover 11, which is respectively adapted to the two protrusions 107. When the end cover is set in the installation cavity 101, the two protrusions 107 are respectively inserted into the corresponding limiting grooves 116.

[0109] like Figure 2 and Figure 7 As shown, the valve assembly includes a sealing valve, a sealing gasket 40 and a sealing elastic member 41. The sealing valve includes a valve body 42, a valve plate 43 and a column core 44. The valve plate 43 is connected to one end of the valve body 42, and the end of the valve body 42 away from the valve plate 43 is used to be inserted into the bracket 104 in the air inlet hole 102 or the air outlet hole 103, and extends into the installation cavity 101. The bracket 104 supports the valve body 42, and the bracket 104 also guides the valve body 42, so that the valve body 42 can slide along the axial direction of the air inlet hole 102 or the air outlet hole 103. The column core 44 is arranged on the side of the valve disc 43 away from the valve body 42. The sealing elastic member 41 is a spring. The sealing elastic member 41 is sleeved on the column core 44, and the two ends of the sealing elastic member 41 respectively abut the valve disc 43 and the outer cover 105. The valve disc 43 abuts against the seat body 10 under the action of the sealing elastic member 41 and seals the air inlet 102 or the air outlet 103. In order to enable the valve disc 43 to tightly seal the air inlet 102 or the air outlet 103, the sealing gasket 40 is sleeved on the valve disc 43, and the sealing gasket 40 is used to seal the gap between the valve disc 43 and the seat body 10.

[0110] When the switch assembly is rotated to make the air pump slide to the second position, the air pump abuts against the valve body 42 and pushes the sealing valve to compress the sealing elastic member 41. At this time, the sealing valve is away from the seat body 10, and the installation cavity 101 is connected with the outside through the air outlet 103; when the switch assembly is rotated to make the air pump slide from the second position to the third position, the air pump is disengaged from the valve body 42 at the air outlet 103, and the sealing elastic member 41 pushes the sealing valve to reset and seal the air outlet 103. At the same time, the air pump abuts against and pushes the sealing valve at the air inlet 102 to make the sealing valve away from the seat body 10. At this time, the installation cavity 101 is connected with the outside through the air inlet 102.

[0111] like Figures 8 to 10As shown, the air pump includes a pump housing 50, a motor 51 and a fan blade 52. The pump housing 50 is a roughly rectangular parallelepiped structure, the motor 51 is installed in the pump housing 50, the fan blade 52 is connected to the motor 51, and the pump housing 50 is provided with an air inlet 501 and an air charging port 502 on both sides of the length direction, respectively. The fan blade 52 is located on the side close to the air inlet 51, and the air inlet 501 and the air charging port 502 correspond to the air inlet 102 and the air outlet 103, respectively. Two flow channel racks 503 are provided on the pump housing 50, and the two flow channel racks 503 are respectively located at the air inlet 501 and the air charging port 502. When the air pump is located at the second position or the third position, the flow channel racks 503 at the air inlet 501 and the air charging port 502 correspondingly abut against the valve body 42 at the air inlet 102 and the air outlet 103 and push the corresponding valve body 42 to move away from the seat body 10. In order to seal the gap between the air intake port 501 and the air inlet 102 and between the air charging port 502 and the air outlet 103 , sealing rings are provided on the outer peripheral walls of the air intake port 501 and the air charging port 502 .

[0112] When the air pump slides along the seat body 10, in order to prevent the air pump from shaking in the width direction of the seat body 10, both sides of the pump housing 50 in the width direction slide in cooperation with the cavity wall of the installation cavity 101. For example, a horizontally arranged guide bar 504 is provided on the outer side of the pump housing 50, and the guide bar 504 slides in contact with the cavity wall of the installation cavity 101.

[0113] In order to allow air to flow smoothly through the air pump when the air pump is working, a plurality of gas flow channels 505 are opened on the pump housing 50 , and the gas flow channels 505 are located below the air inlet 501 .

[0114] The top surface of the pump housing 50 is provided with a power start button 53, which is used to start the motor 51. In order to start the air pump without opening the end cover, two buttons arranged at intervals may be provided on the end cover. When the air pump is in the first position, the two buttons are respectively located on both sides of the start power supply 53. When the air pump is in the second position, one of the buttons is aligned with the start power supply 53. At this time, the button is pressed, and the button presses the power start button 53, so that the air pump can be started. Similarly, when the air pump is in the third position, the other button is aligned with the start power supply 53, and the air pump can also be started by pressing the other button.

[0115] The top surface of the pump housing 50 is provided with a groove structure with the linkage rod 31, and the specific groove structure is a slide groove 506. The slide groove 506 is extended along the width direction of the pump housing 50, and the linkage rod 31 passes through the limiting hole 121 and is slidably inserted into the slide groove 506. When the knob 30 drives the linkage rod 31 to rotate together, during the rotation of the linkage rod 31, the position of the linkage rod 31 will move relative to the pump housing 50. Since the linkage rod 31 is inserted into the slide groove 506 at this time, there is a linkage rod 31 sliding along the slide groove 506 and exerting a pushing force on the side wall of the slide groove 506. The force is perpendicular to the side wall of the slide groove 506, that is, along the length direction of the pump housing 50. The pump housing 50 slides along the seat body 10 under the action of the force. It can be understood that the way in which the linkage rod 31 drives the pump housing 50 to move is similar to a cam mechanism.

[0116] The pump housing 50 is also provided with a rotatable handle 507 and a groove for the handle 507 to be placed flat. The handle 507 facilitates taking the air pump out of the seat body 10.

[0117] The pump housing 50 is also provided with a lighting button 54 and an indicator light. The bottom of the pump housing 50 is made of a light-transmitting material, and a light panel is provided on one side of the pump housing 50 near the bottom. When the air pump is taken out of the seat body 10 and used alone, the lighting function can be realized by pressing the lighting button 54.

[0118] The side wall of the pump housing 50 is provided with a power interface 508, which can be used to charge the air pump anytime and anywhere, and can also be used as a mobile power source to charge other products.

[0119] In summary, the implementation process of the internal and external multi-purpose pump of this embodiment is: open the end cover, place the air pump in the installation cavity 101 of the seat body 10, and then flip the end cover so that the end cover is covered on the seat body 10. At this time, the latch 22 abuts against the guide portion 112 on the end cover, and the latch 22 shrinks into the accommodating cavity 201 under the pressure of the guide portion 112. When the end cover is completely covered on the seat body 10, the latch 22 protrudes from the second opening 203 of the accommodating cavity 201 and is inserted into the latch groove 111 under the elastic force of the first elastic member 23, thereby locking the end cover.

[0120] When the inflatable object is inflated, the handle 32 is turned so that the knob 30 drives the linkage rod 31 to rotate, and the linkage rod 31 slides in the slide groove 506, and drives the air pump to move to the second position. At this time, the limiter on the knob 30 is inserted into the positioning hole 115 corresponding to the second position, and the flow channel frame 503 at the air pump inflation port 502 abuts against the valve body 42 at the air outlet 103, so that the valve plate 43 is separated from the seat body 10, so that the installation cavity 101 is connected with the outside world. Press the power start button 53 to start the air pump, and the air flow enters the installation cavity 101 from the vent hole 13, and enters the inside of the air pump from the air inlet 501 and the gas flow channel 505. Finally, the air flow enters the inflatable object from the inflation port 502 and the air outlet 103.

[0121] When the inflatable object is deflated, the handle 32 is turned so that the knob 30 drives the linkage rod 31 to rotate. The linkage rod 31 drives the air pump to move to the third position while sliding in the slide groove 506. When the flow channel frame 503 at the air pump suction port 501 abuts against the valve body 42 at the air inlet 102, the air inlet 102 is opened. The power start button 53 is pressed to start the air pump. The airflow enters the installation cavity 101 from the air inlet 102, and enters the inside of the air pump from the air suction port 501. Finally, the airflow is discharged from the vent 13. In addition, the operator can take the air pump out of the seat body 10 for separate use, thereby meeting diverse usage requirements.

[0122] Second embodiment

[0123] like Figure 5 As shown, the present embodiment is different from the first embodiment in that: two starting mechanisms are provided on the fixed plate 12, the starting mechanisms are elastic convex contacts, the elastic convex contacts include a connector 124 and a contact 125, a receiving hole is provided on the fixed plate 12 of the end cover, the connector 124 is located in the receiving hole, one end of the connector 124 is connected to the fixed plate 12, and the other end of the connector 124 is connected to the contact 125, the contact 125 is provided on the side of the connecting plate 124 facing the air pump, the contact 125 protrudes from the receiving hole, and the connector 124 has a certain elasticity, so that the contact 125 can move up and down in the vertical direction. The cross-sectional area of ​​the contact 125 gradually decreases from the end close to the connector 124 to the end away from the connector 124, for example, the contact 125 can be hemispherical or inverted cone. Two elastic convex contacts are arranged at intervals along the length direction of the air pump. When the air pump is in the first position, the two elastic convex contacts are respectively located on both sides of the power start key 53. When the air pump is in the second position, the contact 125 of one of the elastic convex contacts abuts against the power start key 53. When the elastic convex contact contacts the power start key 53, due to the elasticity of the connecting member 124, the contact 125 presses the power start key 53 downward under the action of the connecting member 124, thereby achieving the purpose of starting the air pump. When the air pump is in the third position, the contact 125 of the other elastic convex contact abuts against the power start key 53 and starts the air pump.

[0124] For another example, the elastic convex contact member may be a spring plunger structure.

[0125] By arranging two elastic convex contacts on the fixed plate 12, when the knob 30 is turned to move the air pump to the second position or the third position, the elastic convex contacts abut against the starting power supply 53 and trigger the air pump to work. Since the operator does not need to perform additional operations to start the air pump, the operation is simplified, which provides convenience for the operator.

[0126] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An internal and external multi-purpose pump, characterized in that: include: The housing comprises a base body and an end cover, wherein the base body is provided with an installation cavity, and opposite sides of the base body are provided with an air inlet and an air outlet, and the end cover is movably provided on the base body for closing or opening the installation cavity; an air pump, the air pump being slidably disposed in the mounting cavity between the air inlet and the air outlet, the air pump having a first position, a second position and a third position, the second position corresponding to the position of the air outlet, the third position corresponding to the position of the air inlet, the first position being between the second position and the third position, and the air pump being used to stop when moving to the first position; A switch assembly is rotatably disposed on the end cover, a portion of the switch assembly extends into the installation cavity and is connected to the air pump, and the switch assembly is used to drive the air pump to switch between the first position, the second position and the third position by rotation to achieve different working modes.

2. The internal and external multi-purpose pump according to claim 1, characterized in that: The switch assembly includes a knob and a linkage rod; The knob is rotatably mounted on the end cover, one end of the linkage rod is offsetly connected to the knob, and the other end of the linkage rod extends into the mounting cavity and is inserted into the sliding groove on the upper part of the air pump.

3. The internal and external multi-purpose pump according to claim 2, characterized in that: The end cover includes a face cover and a fixing plate, the fixing plate is connected to the side of the face cover facing the air pump, the face cover is provided with a circular hole, the fixing plate is provided with a limiting hole opposite to the circular hole, the knob is rotatably installed in the circular hole, the linkage rod passes through the limiting hole and extends into the installation cavity, and the linkage rod can rotate along an arc in the limiting hole.

4. The internal and external multi-purpose pump according to claim 3, characterized in that: The limiting hole comprises a semicircular contour and a protruding portion protruding from the hole wall at the center of the semicircular contour, and the protruding portion protrudes from the inside of the limiting hole in a direction away from the hole wall at the center.

5. The internal and external multi-purpose pump according to claim 4, characterized in that: The end of the protrusion is in an arc shape, and the connection position between the protrusion and the hole wall of the limiting hole is an arc transition.

6. The internal and external multi-purpose pump according to claim 3, characterized in that: The limiting hole is an arc-shaped strip hole.

7. The internal and external multi-purpose pump according to any one of claims 2 to 6, characterized in that: The switch assembly further includes a limiter and a positioning elastic member. A horizontal receiving groove is provided in the knob. A through hole communicating with the receiving groove is provided on the side wall of the knob. The limiter is slidably provided in the receiving groove and one end thereof extends outward from the through hole. A limiting portion is provided on the circumferential side of the limiting member for limiting the movement of the limiting member outward from the through hole. The positioning elastic member is located in the accommodating groove. The positioning elastic member is used to push the limiting member so that one end of the limiting member extends out of the through hole. The end cover is provided with a plurality of positioning holes distributed along the circumferential side of the knob for allowing the limiting member to be inserted.

8. The internal and external multi-purpose pump according to claim 1, characterized in that: A power start button is arranged on the top of the air pump, and two start mechanisms are arranged at intervals on the end cover. The two start mechanisms are respectively opposite to the power start button when the air pump is located at the second position and the third position, so as to start the air pump.

9. The internal and external multi-purpose pump according to claim 8, characterized in that: The starting mechanism comprises an elastic convex contact member, and the elastic convex contact member is used to abut against the power start key when the air pump is located at the second position or the third position.

10. The internal and external multi-purpose pump according to claim 8, characterized in that: The starting mechanism comprises a button arranged on the end cover, and the button is used to press the power start key when the air pump is located at the second position or the third position.

11. The internal and external multi-purpose pump according to claim 1, characterized in that: One side of the end cover is rotatably connected to the seat body, and the other side of the end cover is provided with a slot. The seat body is provided with a locking assembly, and the locking assembly includes a mounting seat, a push rod and a latch tongue. The mounting seat is provided with a accommodating cavity, a first opening and a second opening. The first opening is opened on the top surface of the mounting seat, and the second opening is opened on the side of the mounting seat facing the end cover. The latch tongue is slidably arranged in the accommodating cavity, and the latch tongue protrudes from the accommodating cavity from the second opening for insertion into the slot. The push rod is connected to the latch tongue and protrudes from the mounting seat from the first opening, and the push rod is used to drive the latch tongue to slide.

12. The internal and external multi-purpose pump according to claim 1, characterized in that: The air inlet and the air outlet are both provided with valve components which can be triggered to open by an air pump, and a sealing ring is sleeved on the periphery of the valve plate of the valve component to seal the gap between the valve plate and the air inlet or the air outlet.

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