CN220118272U - Mode switching device for air inlet and outlet of air pump - Google Patents

Abstract

The utility model provides a mode auto-change over device of air pump business turn over wind which characterized in that: the air pump comprises an air pumping valve body, an air charging valve body and a fan, wherein the air charging valve body and the air pumping valve body are respectively arranged on the left side and the right side of the lower portion in an air pump shell, the fan is arranged between the air pumping valve body and the air charging valve body and communicated with the air charging valve body, an air vent is formed in the upper end face of the air pump shell, an air charging channel and an air pumping channel which are communicated with the air charging valve body and the air pumping valve body in a matched mode are arranged in the air pump shell, a motor for driving the air charging valve body and the air pumping valve body to be opened or closed is further arranged in the air pump shell, when the air charging valve body is closed and the air pumping valve body is opened, air is in an air pumping mode, and air is discharged from the air vent in the upper end face of the air pump shell through the air pumping channel, otherwise, and the motor is in an air charging mode. The utility model has the advantages of simple and compact structure, convenient mode switching, high air extraction speed, low cost and good use effect, and is particularly suitable for the air inflation and air extraction switching of the air pump on the mattress.

Description

Mode switching device for air inlet and outlet of air pump

Technical Field

The utility model relates to a reversing structure of an air pump, in particular to a mode switching device for air inlet and outlet of the air pump.

Background

At present, occasions needing air suction and inflation, such as air cushion bed inflation and deflation, surfing board inflation and deflation and the like, are frequently encountered in life, the air inlet and the air outlet of the existing air pump products on the market are mostly fixed and are not mutually changeable, the structure of the existing air suction and inflation device is complex, the air suction speed is low, the device comprises an electric air pump, and meanwhile, the device is large in size and high in cost.

Through investigation, the Chinese patent with the prior patent number of CN202220795408.2 is an inflation and air extraction reversing valve device, which comprises an air storage piece, a reversing valve body, a reversing rod and a reversing driving mechanism, wherein an air inlet compartment and an air outlet compartment are arranged in the air storage piece, the upper end of the air storage piece is connected with the reversing valve plate, the lower end of the air storage piece is linked with an air pump driving device, two channels communicated with the air inlet compartment and the air outlet compartment are arranged in the reversing valve body, the upper end of the reversing valve body is provided with an interface connected with a container, the reversing rod transversely penetrates through the air exchange valve body and is connected with the reversing driving mechanism, two plugs for reversing are arranged on the reversing rod, and when the reversing rod moves forwards and backwards under the action of the reversing driving mechanism, the two plugs also move forwards and backwards along with the front and back to realize the switching of inflation and air extraction modes. The reversing device can realize air suction and inflation, but has more structural parts, needs an air pump driving device and a reversing driving mechanism, is not compact enough in structure, needs further improvement, and meets the requirements of small volume and low cost on the premise of convenient switching.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the mode switching device for the air inlet and outlet of the air pump, which has a simple and compact structure and is convenient to switch between air suction and inflation.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a mode auto-change over device of air pump business turn over wind which characterized in that: the air pump comprises an air pumping valve body, an air pumping valve body and a fan, wherein the air pumping valve body and the air pumping valve body are respectively arranged at the left side and the right side of the lower part in an air pump shell, the fan is arranged between the air pumping valve body and communicated with each other, an air pumping channel and an air pumping channel which are used for enabling the air pumping holes to be matched and communicated with the air pumping valve body and the air pumping valve body are arranged in the air pump shell, a motor for driving the air pumping valve body and the air pumping valve body to be opened or closed so as to realize the switching of the two channels is further arranged in the air pump shell, when the air pumping valve body is closed and the air pumping valve body is opened, air is in an air pumping mode from the air pumping valve body through the air pumping channel and is discharged from the air pumping channel on the upper end face of the air pump shell, and when the air pumping valve body is opened, the air is discharged from the air pumping valve body through the air pumping channel after entering from the upper end face of the air pumping valve body.

Further, the air pump casing includes involution casing and apron, supply to aerify valve body, the telescopic circular shape installing port of extraction valve body installation has been seted up respectively to the lower part left and right sides of casing, be equipped with the motor support in the casing, between aerify valve body and the extraction valve body, the left and right sides of motor support is equipped with the motor fixed plate, the fan setting is in the lower part of motor support, two motors are installed in the upper portion left and right sides of motor support, the lower extreme shaping of motor support is the inverted U-shaped frame of supply fan installation, the protruding connection drum that is equipped with link up in the left and right sides of inverted U-shaped frame cup joints the intercommunication with the extraction valve body and the inflation valve body respectively.

Further, both sides and the inner wall of casing offset sealedly around the motor support, the motor fixed plate around with the inner wall of casing offset, have certain clearance between motor fixed plate and the inner wall of casing of homonymy, the structure of air valve body and air valve body is unanimous, all include a sliding valve, sliding valve is the open-ended drum structure in inner end, sliding valve's outer terminal surface is the circular plane corresponding with the circular installation mouth of casing, sliding valve's inner end drum structure just in time overlaps to establish outside the connection drum of motor support left and right sides, drum structure is close to the position of outer terminal surface and is equipped with fretwork portion, when sliding valve inwards withdraws to close, clearance between this fretwork portion and the inner wall of casing and the motor fixed plate is linked together, form the air passage, when sliding valve outwards stretches out and opens, this fretwork portion stretches out outside the casing, the air passage of this side is closed.

Further, the upper end four corners position of motor support is protruding to be equipped with the mount, and two motors are fixed in motor support's upper end left and right sides through motor fixed plate and mount respectively, and the motor passes through drive mechanism drive sliding valve and controls the removal.

Further, the transmission mechanism comprises a transmission gear and a rotating gear, the upper end of the motor fixing plate is provided with a through hole for the output shaft of the motor to extend out, the motor gear is arranged on the motor output shaft, the lower part of the motor gear on the outer side surface of the motor fixing plate is provided with a convex shaft for the transmission gear to be arranged, the transmission gear is rotatably arranged on the motor fixing plate and meshed with the motor gear, the lower part of the motor fixing plate is provided with an inverted U-shaped slot hole for the sliding valve to pass through, the cylinder structure of the sliding valve penetrates through the motor fixing plate and is sleeved with the cylinder structure of the motor support, the middle part of the cylinder structure of the sliding valve is an external thread section, and the rotating gear is arranged on the external thread section through a thread connecting sleeve and meshed with the transmission gear at the upper end, when the motor rotates, the transmission gear is driven to rotate, and the rotating gear is driven to rotate accordingly, and the sliding valve is driven to move left and right.

As an improvement, the sliding valve is also sleeved with a limiting check ring for limiting the stroke of the sliding valve, the inner end of the sliding valve is provided with a clamping groove for the limiting check ring to be sleeved and positioned, and when the sliding valve moves outwards in place, the sliding valve is limited by propping against the rotating gear through the limiting check ring.

Further improved, the upper end of the inverted U-shaped slotted hole is concavely provided with a limit groove, the end part of the limit check ring is convexly provided with a corresponding limit block, the external thread section of the sliding valve adopts multi-head threads, and when the limit block of the limit check ring is positioned in the limit groove, the valve body cannot rotate and can move forwards and backwards through the multi-head threads.

As an improvement, a valve plate is further arranged on the outer end face of the sliding valve, a central hole is formed in the middle of the outer end face of the sliding valve, a convex needle is arranged on the inner side of the valve plate, the valve plate is fixed in the sliding valve in a penetrating mode through the convex needle, a convex ring with an expanded diameter is arranged on the outer side of the circular opening of the shell, and a step propped against the valve plate is arranged in the convex ring.

Finally, a plurality of air holes are formed in the cover plate respectively.

Compared with the prior art, the utility model has the advantages that: the air pump is characterized in that an air inflation valve body and an air extraction valve body are arranged, an air inflation channel and an air extraction channel which are matched with the air inflation valve body and the air extraction valve body are arranged in the air pump shell, and the air inflation valve body and the air extraction valve body are driven to be opened or closed through a corresponding motor, so that the two channels are switched, and air extraction and air inflation are further achieved. The utility model has simple and compact structure, convenient switching operation, fast air suction and inflation speed, low cost and good use effect, and is particularly suitable for the inflation and air suction switching of the inflator pump to the mattress.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model in an air extraction mode;

FIG. 2 is a schematic view of an embodiment of the present utility model in an inflation mode;

FIG. 3 is a schematic view of the structure of FIG. 1 with the air pump housing removed;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a right side view of FIG. 3;

FIG. 6 is a schematic view of the structure of FIG. 2 with the air pump housing removed;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a right side view of FIG. 6;

fig. 9 is an exploded view of fig. 3.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 9, a mode switching device for air inlet and outlet of an air pump comprises an air extraction valve body 3, an air injection valve body 2, a fan 4 and a left motor 5 and a right motor 5 which are arranged in an air pump shell a, wherein the air injection valve body 2 and the air extraction valve body 3 are respectively arranged at the left side and the right side of the lower part of the air pump shell a, the fan 4 is arranged between the air extraction valve body 3 and the air injection valve body 2 and communicated with each other, an air vent 101 is arranged at the upper end face of the air pump shell a, the air pump shell a is internally provided with an air injection channel and an air extraction channel which are respectively communicated with the air injection valve body 2 and the air extraction valve body 3, the motors 5 are respectively used for driving the air injection valve body 2 and the air injection valve body 3 to be opened or closed so as to realize the switching of the two channels, when the air injection valve body 2 is closed and the air extraction valve body 3 is opened, air is in the air extraction mode from the air valve body 3 is discharged from the upper end face 101 of the air pump shell a through the air extraction channel, when the air injection valve body 3 is closed and the air injection valve body 2 is opened, the air is in the air injection mode, and the air is discharged from the air injection channel through the air injection valve body 2 through the air injection channel after entering the upper end face 101 of the air pump shell a.

The concrete structure is as follows: the air pump of this embodiment is installed in the mattress for bleed and aerify the mattress, air pump casing A is including involutive casing 1 and apron 10, bleeder vent 101 is a plurality of, offer respectively on apron 10, the circular mounting mouth 11 that supplies inflation valve body 2, the installation of bleeder valve body 3 and flexible are offered respectively to the lower part left and right sides of casing 1 of this embodiment, be equipped with motor support 6 in casing 1 between inflation valve body 2 and the admission valve body 3, motor support 6's left and right sides is equipped with motor fixed plate 7, motor support 6's lower extreme shaping is the inverted U-shaped frame that supplies fan 4 to install, fan 4 sets up in motor support 6's lower part, two motors 5 are installed in motor support 6's upper portion left and right sides, motor support 6's inverted U-shaped frame's left and right sides protruding connecting cylinder 61 that is equipped with link up respectively cup joints and communicates with bleeder valve body 3 and inflation valve body 2. The front side and the rear side of the motor bracket 6 are propped against the inner wall of the shell 1, the front side and the rear side of the motor fixing plate 7 are propped against the inner wall of the shell 1, and a certain gap is reserved between the motor fixing plate 7 and the inner wall of the shell 1 on the same side. The structure of the air pumping valve body 3 and the structure of the air pumping valve body 2 are consistent, the air pumping valve body 3 and the air pumping valve body 2 both comprise a valve plate and a sliding valve 21, the sliding valve 21 is a cylinder structure with an opening at the inner end, the outer end surface of the sliding valve 21 is a circular plane corresponding to the circular mounting opening of the shell 1, the cylinder structure at the inner end of the sliding valve 21 is exactly sleeved outside the connecting cylinder 61 at the left side and the right side of the motor bracket 6, the position of the cylinder structure close to the outer end surface is provided with a hollowed-out part 212 to form an inlet or an outlet, when the air pumping valve body 2 is closed or the sliding valve 21 is retracted inwards to be closed, the hollowed-out part 212 of the air pumping valve body 2 is communicated with a gap between the inner wall of the shell 1 and the motor fixing plate 7 to form an air channel, finally the air hole 101 of the upper end surface of the air pumping valve shell A is communicated, correspondingly, the air pumping valve body 3 stretches out and opens outwards, the hollowed-out part of the hollow valve body 3 stretches out of the air pump shell A is stretched out of the air channel of the air pump shell A through the connecting cylinder 61 to be communicated with the inlet of the fan 4, the outlet of the fan 4 is communicated with the air pumping valve body 2, when the air pumping valve body 2 is opened to be opened to the hollow valve body 2 is opened to the inner wall of the hollow valve body 2 is opened to the corresponding to the hollow valve body 3 a, the hollow part of the air pumping valve body 3 is opened to be opened to the hollow part 3 is correspondingly opened to the hollow part 3 is communicated with the air inlet of the air pumping valve body 2, and is communicated with the air valve body 2 is communicated with the air inlet through the air inlet of the air valve 3, when the air valve 3 is communicated with the air through the air opening is communicated with the air through the air valve 3 and is opened, so that an air suction channel which is used for communicating the air charging valve body 2 with the air holes 101 in a matching way is formed in the air pump shell A. The upper end four corners position of motor support 6 is protruding to be equipped with the mount, and control two motors 5 are fixed in the upper end left and right sides of motor support 6 through motor fixed plate 7 and mount respectively, and motor 5 passes through the drive mechanism and drives slide valve 21 and move about.

The transmission mechanism comprises a transmission gear 8 and a rotating gear 22, a through hole 71 which is used for the output shaft of the motor 5 to extend is formed in the upper end of the motor fixing plate 7, the motor gear 50 is installed on the motor output shaft, a protruding shaft 72 which is used for installing the transmission gear 8 is arranged below the motor gear 50 on the outer side surface of the motor fixing plate 7, a clamping ring 9 which is used for positioning the transmission gear 8 is arranged on the outer side of the protruding shaft 72, the transmission gear 8 is rotatably installed on the motor fixing plate 7 and meshed with the motor gear 50, an inverted U-shaped groove 74 which is used for the sliding valve 21 to penetrate is formed in the lower portion of the motor fixing plate 7, the cylindrical structure of the sliding valve 21 penetrates through the motor fixing plate 7 and is sleeved and communicated with the cylindrical structure 61 of the motor support 6, the middle portion of the cylindrical structure of the sliding valve 21 is an external thread section 211, the rotating gear 22 is arranged on the external thread section 211 through a thread connecting sleeve and meshed with the transmission gear 8 on the upper end, when the motor 5 rotates, the transmission gear 8 is driven to rotate, and the rotating gear 22 rotates along with the rotating shaft to drive the sliding valve 21 to move left and right. The sliding valve 21 is also sleeved with a limiting check ring 24 for limiting the stroke of the sliding valve 21, the inner end of the sliding valve 21 is provided with a clamping groove 213 for the limiting check ring 24 to be sleeved with a set position, and when the sliding valve 21 moves outwards in place, the sliding valve is limited by propping against the rotating gear 22 through the limiting check ring 24. Further improved, a limiting groove 73 is concavely formed in the upper end of the inverted U-shaped groove hole 74, corresponding limiting blocks 241 are convexly arranged at the upper end and the lower end of the limiting check ring 24, the external thread section 211 of the sliding valve 21 is provided with multi-head threads, and when the limiting blocks 241 of the limiting check ring are located in the limiting groove 73, the air suction valve body 2 or the air charging valve body 3 cannot rotate, and the air suction valve body 2 or the air charging valve body 3 can rapidly move back and forth through the multi-head threads.

The middle part of the outer end surface of the sliding valve 21 is provided with a central hole 214, the inner side of the valve plate 23 is provided with a convex needle 231, the valve plate 23 is penetrated and fixed in the sliding valve 21 through the convex needle 231, the outer side of the circular mounting opening 11 of the shell 1 is provided with a diameter-expanding convex ring 12, and a step propped against the valve plate 23 is arranged in the convex ring.

The specific operation process is as follows:

the air extraction mode is shown in figures 1, 3, 4 and 5, the left motor 5 is reversed, the air charging valve body 2 is closed, meanwhile, the right motor 5 is rotated positively, the motor gear 50 drives the transmission gear 8 to rotate, the transmission gear 8 drives the rotating gear 22 to rotate clockwise, the air extraction valve body 3 rotates to move outwards, the air extraction valve body 3 is opened, the air extraction channel is smooth, the fan 4 starts to work, the air flow direction is shown by an arrow in figure 1, and air flows out of the mattress from the interior B of the mattress to the exterior C of the mattress to start air extraction.

The inflation mode is shown in fig. 2, 6, 7 and 8, the motor 5 on the right side is reversed, the air draft valve body 3 is closed, meanwhile, the motor 5 on the left side is rotated positively, the motor gear 50 drives the transmission gear 8 to rotate, the transmission gear 8 drives the rotating gear 22 to rotate clockwise, the inflation valve body 2 is rotated and moved outwards, the inflation valve body 2 is opened, the inflation channel is smooth, the fan 4 starts to work, the air flows in the direction shown by the arrow of fig. 2, and the air flows out from the outside C of the mattress to the inside B of the mattress to start inflation.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (9)

1. The utility model provides a mode auto-change over device of air pump business turn over wind which characterized in that: the air pump comprises an air pumping valve body, an air pumping valve body and a fan, wherein the air pumping valve body and the air pumping valve body are respectively arranged at the left side and the right side of the lower part in an air pump shell, the fan is arranged between the air pumping valve body and communicated with each other, an air pumping channel and an air pumping channel which are used for enabling the air pumping holes to be matched and communicated with the air pumping valve body and the air pumping valve body are arranged in the air pump shell, a motor for driving the air pumping valve body and the air pumping valve body to be opened or closed so as to realize the switching of the two channels is further arranged in the air pump shell, when the air pumping valve body is closed and the air pumping valve body is opened, air is in an air pumping mode from the air pumping valve body through the air pumping channel and is discharged from the air pumping channel on the upper end face of the air pump shell, and when the air pumping valve body is opened, the air is discharged from the air pumping valve body through the air pumping channel after entering from the upper end face of the air pumping valve body.

2. The mode switching device according to claim 1, wherein: the air pump shell comprises a shell and a cover plate which are combined, wherein circular mounting openings for mounting and stretching the air supply valve body and the air extraction valve body are respectively formed in the left side and the right side of the lower portion of the shell, a motor support is arranged in the shell, between the air supply valve body and the air extraction valve body, motor fixing plates are arranged on the left side and the right side of the motor support, a fan is arranged on the lower portion of the motor support, two motors are mounted on the left side and the right side of the upper portion of the motor support, the lower end of the motor support is formed into an inverted U-shaped frame for mounting the fan, and connecting cylinders which are communicated with the air extraction valve body and the air extraction valve body in a sleeved mode are convexly arranged on the left side and the right side of the inverted U-shaped frame.

3. The mode switching device according to claim 2, wherein: the front side and the rear side of the motor support are propped against the inner wall of the shell, the front side and the rear side of the motor fixing plate are propped against the inner wall of the shell, a certain gap is reserved between the motor fixing plate and the inner wall of the shell on the same side, the structure of the air pumping valve body and the structure of the air pumping valve body are consistent, the air pumping valve body comprises a sliding valve, the sliding valve is of a cylinder structure with an inner end opening, the outer end face of the sliding valve is a circular plane corresponding to a circular mounting opening of the shell, the inner end cylinder structure of the sliding valve is exactly sleeved outside a connecting cylinder on the left side and the right side of the motor support, a hollowed-out part is arranged at the position, close to the outer end face, of the cylinder structure, and when the sliding valve is closed by inward retracting, the hollowed-out part is communicated with the gap between the inner wall of the shell and the motor fixing plate to form an air channel.

4. A mode switching device according to claim 3, wherein: the motor support is characterized in that fixing frames are convexly arranged at four corners of the upper end of the motor support, the left motor and the right motor are respectively fixed on the left side and the right side of the upper end of the motor support through motor fixing plates and the fixing frames, and the motors drive the sliding valve to move left and right through a transmission mechanism.

5. The mode switching device according to claim 4, wherein: the transmission mechanism comprises a transmission gear and a rotating gear, the upper end of a motor fixing plate is provided with a through hole for an output shaft of the motor to extend out, the motor gear is arranged on the motor output shaft, a protruding shaft for the transmission gear to be arranged is arranged below the motor gear on the outer side surface of the motor fixing plate, the transmission gear is rotatably arranged on the motor fixing plate and meshed with the motor gear, the lower portion of the motor fixing plate is provided with an inverted U-shaped groove hole for the sliding valve to penetrate through, the cylindrical structure of the sliding valve penetrates through the motor fixing plate and is sleeved with the cylindrical structure of the motor support, the middle of the cylindrical structure of the sliding valve is an external thread section, and the rotating gear is arranged on the external thread section through a thread connecting sleeve and meshed with the transmission gear at the upper end, when the motor rotates, the transmission gear is driven to rotate, and the rotating gear is driven to move left and right.

6. The mode switching device according to claim 5, wherein: the sliding valve is further sleeved with a limiting check ring which limits the stroke of the sliding valve, the inner end of the sliding valve is provided with a clamping groove for the limiting check ring to be sleeved with, and when the sliding valve moves outwards in place, the sliding valve is limited by propping against the rotating gear through the limiting check ring.

7. The mode switching device according to claim 6, wherein: the upper end of the inverted U-shaped slotted hole is concavely provided with a limit groove, the end part of the limit check ring is convexly provided with a corresponding limit block, the external thread section of the sliding valve adopts multi-head threads, and when the limit block of the limit check ring is positioned in the limit groove, the valve body cannot rotate and can move back and forth through the multi-head threads.

8. A mode switching device according to claim 3, wherein: the valve is characterized in that a valve plate is further arranged on the outer end face of the sliding valve, a central hole is formed in the middle of the outer end face of the sliding valve, a protruding needle is arranged on the inner side of the valve plate, the valve plate is fixed in the sliding valve in a penetrating mode through the protruding needle, a protruding ring with an expanded diameter is arranged on the outer side of the circular opening of the shell, and a step propped against the valve plate is arranged in the protruding ring.

9. The mode switching device according to any one of claims 1 to 8, wherein: the air holes are formed in the cover plate respectively.