CN224149737U - Pump core of inflator pump - Google Patents

Abstract

The utility model discloses an inflator pump core which comprises a gas conveying mechanism and a gas compressing mechanism, wherein the gas conveying mechanism is provided with a compressing cavity, the gas compressing mechanism comprises a pump box, a motor and a pump body assembly arranged in the pump box, the pump body assembly comprises a cam structure gear and a piston, one end of the piston is eccentrically connected with the cam structure gear, a piston disc is arranged at the other end of the piston and is accommodated in the compressing cavity, the motor drives the cam structure gear so as to drive the piston disc to reciprocate in the compressing cavity in a linear mode, and therefore gas entering the compressing cavity is compressed, and the gas conveying mechanism charges a product to be inflated. According to the pump core of the inflator pump, the piston is eccentrically arranged on the cam structure gear, so that components in the pump box are simpler and more compact, and the volume of the pump box is reduced.

Description

Pump core of inflator pump

Technical Field

The utility model relates to the technical field of inflation equipment, in particular to an inflator pump core.

Background

When the tire, the inflatable tent, the SUP sports equipment and the like need to be inflated by adopting an external manual or electric inflator pump, the conventional inflator pump is provided with a compression cylinder for outputting compressed gas to inflate and a fan for sucking external air and compressing the air through an air fan to assist in inflation, so that the efficiency is improved.

The compressed air cylinder and the fan are respectively arranged in the shell of the SUP inflator pump, and because the output end of the compressed air cylinder and the output end of the fan are both communicated with the air outlet pipeline of the SUP inflator pump, the compressed air output by the compressed air cylinder is discharged to the fan along the bypass in the air outlet pipeline, and when the air speed of the discharged compressed air is high, the fan is under the action of the discharged compressed air, the fan cannot normally rotate, so that the inflation efficiency is reduced.

The user can choose the SUP inflator equipped with the compression cylinder alone or the SUP inflator equipped with both the compression cylinder and the blower according to the actual inflation demand.

Aiming at the SUP inflator pump which is provided with a compression cylinder and a fan, the fan and the SUP inflator pump body are mostly in a bolt fixing mode, when a user only needs to work the compression cylinder, the fan and the SUP inflator pump body are fixed by the bolt, so that the problem that the fan and the SUP inflator pump body are inconvenient to disassemble, and the user is inconvenient to carry or use the SUP inflator pump is solved. In addition, after the fan part is disassembled, the port of the corresponding bypass is also required to be blocked by a sealing cover, so that compressed gas output by the compressed air cylinder is prevented from being blown out of the bypass, and the operation steps are added.

In order to solve the problems, the publication number CN202320424160.3 discloses a SUP inflator movement, which comprises a gas output part and a first gas compression part, wherein the gas output part is provided with a first gas inlet and a gas outlet, the first gas inlet is communicated with the output end of the first gas compression part, the first gas compression part is pressed in external gas and is subjected to compression treatment to obtain first compressed gas, and the first compressed gas sequentially passes through the output end of the first gas compression part, the first gas inlet and the gas outlet and is output. The problem that the inflation efficiency is low because compressed gas is discharged along the bypass is solved, the problem that the user is inconvenient to carry or use because of the inconvenience in disassembly between the fan and the SUP inflator pump body is solved, and the situation that the user needs to use the sealing cover to perform the blockage treatment and flat addition operation step after the fan is disassembled from the SUP inflator pump body is solved.

The inflator pump core has the following problems that the existing inflator pump core is complex in internal structure, poor in compactness, more in connection driving parts are arranged, the size of the inflator pump core is increased due to the fact that the structure is complex, the whole size of the inflator pump using the inflator pump core is large, the portable carrying effect is poor, the service life and the performance are influenced due to the fact that the arranged parts are more, the connection failure rate among all the parts is easily increased due to overlong service time, the cost of assembly or maintenance is increased, and the use requirement of the cost performance of an existing user is not met.

Disclosure of utility model

The utility model provides an inflator pump core aiming at the defects of the prior art, and aims to solve the technical problems of complex structure, poor compactness and large whole volume of the inflator pump core in the prior art.

The technical scheme adopted by the utility model for achieving the purpose is as follows:

The inflator pump core comprises a gas conveying mechanism and a gas compressing mechanism, wherein the gas conveying mechanism is provided with a compressing cavity, the gas compressing mechanism comprises a pump box, a motor and a pump body assembly arranged in the pump box, the pump body assembly comprises a cam structure gear and a piston, one end of the piston is eccentrically connected with the cam structure gear, a piston disc is arranged at the other end of the piston and is accommodated in the compressing cavity, and the motor drives the cam structure gear to drive the piston disc to reciprocate in the compressing cavity to linearly move, so that gas in the compressing cavity is compressed.

The motor is arranged outside the pump box, a driving wheel is arranged on a motor shaft of the motor, and the driving wheel is meshed with the cam structure gear.

The gas conveying mechanism comprises a connecting seat and a compression cavity, wherein the compression cavity is arranged between the connecting seat and the pump box and is provided with a first end face and a second end face which are oppositely arranged, the pump box is provided with a box opening for the piston to extend out, the first end face of the compression cavity is provided with a compression cavity opening for the piston to extend in, and the inner wall of the box opening is attached to the outer wall of the compression cavity opening.

The periphery of the piston disc is provided with a groove, a first vent hole is formed in the disc surface of the piston disc, a sealing gasket is arranged between the piston disc and the compression cavity, the sealing gasket comprises an outer ring and an elastic soft rubber sheet which are connected, the outer ring is in sealing fit with the groove and the inner wall of the compression cavity, the elastic soft rubber sheet is in sealing fit with the disc surface of the piston disc, and whether gas in the pump box can enter the compression cavity is controlled by opening or closing the first vent hole.

The second end face of the compression cavity is provided with an air outlet hole, one side, close to the connecting seat, of the second end face is provided with an elastic sealing cover, and the elastic sealing cover opens or seals the air outlet hole so as to send compressed gas generated in the compression cavity into the connecting seat or isolate the compression cavity from an inner cavity of the connecting seat.

The elastic sealing cover is an elastic piece, one end of the elastic sealing cover is fixedly arranged on the second end face, a silica gel ring is arranged at the other end of the elastic sealing cover, and the silica gel ring is matched with the hole wall of the air outlet hole to seal the air outlet hole.

The connecting seat is also provided with an air outlet pipe and an air inlet pipe on the end surface opposite to the compression cavity. The air outlet pipe and the air inlet pipe are adjacently arranged and are communicated with the connecting seat, and the air inlet pipe is provided with an air inlet.

Be equipped with brushless motor in the outlet duct, brushless motor is used for blowing fast with getting into the compressed gas of connecting seat and follow the air inlet gets into the gas of connecting seat fills to wait to aerify the product.

The one-way valve assembly comprises a mounting plate, a third mounting groove and a one-way valve, wherein the mounting plate is arranged in the air inlet pipe, the third mounting groove and the one-way valve are arranged below the brushless motor, the mounting plate is accommodated in the third mounting groove, a mounting hole and a plurality of second vent holes which are arranged in an annular array around the mounting hole are formed in the center of the mounting plate, the one-way valve comprises an elastic soft rubber sealing piece and a plunger arranged in the center of the elastic soft rubber sealing piece, the plunger is detachably and fixedly inserted into the mounting hole, and the elastic soft rubber sealing piece is arranged in the mounting groove to seal and cover the mounting hole and the second vent holes.

The outer wall of the air outlet pipe is provided with a circuit board, and the circuit board is electrically connected with the brushless motor, the sensor and the motor.

Compared with the prior art, the one or more technical schemes in the inflator pump core provided by the embodiment of the utility model have at least one of the following technical effects:

according to the pump core of the inflator pump, the piston is eccentrically arranged on the cam structure gear, so that components in the pump box are simpler and more compact, and the volume of the pump box is reduced.

External gas can enter the compression cavity through the pump box, can also enter the connecting seat through the air inlet pipe, the inflation efficiency in the inflator pump core is high, the gas is full, and the compression efficiency is high.

Through set up including brushless motor's quick inflation subassembly in the outlet duct realizes quick inflation action, reduces greatly the whole volume of pump core of inflator.

The outlet duct reaches the intake pipe is adjacent set up and all with the connecting seat intercommunication reduces gaseous distance that flows, improves when the inflation efficiency and the performance of pump core make the use pump of pump core is whole small, light, thereby the outdoor portable use of being convenient for improves the convenience, satisfies current user's user demand.

The utility model simplifies the internal structure by reducing the parts, so that the failure rate of the pump core of the inflator pump is reduced, the service life and the performance are prolonged, the difficulty of maintenance and production processing is reduced, the maintenance and assembly efficiency is improved, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of the structure of an inflator pump core according to the present utility model.

FIG. 2 is a front view of an inflator pump core according to the present utility model.

Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.

FIG. 4 is a schematic illustration of an exploded construction of an inflator pump core according to the present utility model.

FIG. 5 is a schematic view of a cam gear 331 of an inflator pump core according to the present utility model.

FIG. 6 is a schematic view of a piston and gasket combination of an inflator pump core according to the present utility model.

Fig. 7 is an exploded view of fig. 6.

FIG. 8 is a schematic view of the compression chamber and elastomeric seal cap of the inflator pump core of the present utility model.

Fig. 9 is an exploded view of fig. 8.

FIG. 10 is a side elevational view of an inflator pump core according to the present utility model.

Fig. 11 is a sectional view taken along line B-B of fig. 10.

FIG. 12 is a side elevational view of an inflator pump core according to another embodiment of the utility model.

FIG. 13 is a cross-sectional view taken along line C-C of FIG. 12

FIG. 14 is a schematic view of a check valve assembly 250 of an inflator pump core according to the present utility model.

Fig. 15 is an exploded view of fig. 12.

Detailed Description

The following description is of the preferred embodiments of the utility model, and is not intended to limit the scope of the utility model.

Referring to fig. 1-4, an inflator pump core is used in a SUP pump, the inflator pump core comprises a gas conveying mechanism 200 and a gas compressing mechanism 300, and the gas conveying mechanism 200 is connected and communicated with the gas compressing mechanism 300. The gas compression mechanism 300 includes a pump housing 310, a motor 320, and a pump body assembly 330 disposed within the pump housing 310. The motor 320 may be internal or external to the pump housing 310. To reduce the volume of the pump housing, the present utility model is preferably disposed outside the pump housing 310. The pump case 310 is provided with an air intake hole for the outside air to enter. The pump body assembly 330 includes a cam gear 331 and a piston 333. One end of the piston 333 is eccentrically connected to the cam gear 331, and the other end thereof is accommodated in a compression chamber 220 described below. The motor 320 drives the cam gear 331 to repeatedly move the piston 333 in the compression chamber 220, thereby compressing the gas introduced into the compression chamber 220, and the gas delivery mechanism 200 rapidly charges the product to be inflated.

The pump body assembly 330 includes a bearing set 332 and a central shaft 334. The bearing set 332 is disposed on an inner wall of the pump housing 310. Specifically, the inner wall of the pump housing 310 is provided with a first mounting groove 311 matched with the bearing set 332, and the bearing set 332 is accommodated in the first mounting groove 311. The pump case 310 is provided with a reinforcing rib 312 at an outer wall of the first mounting groove 311, and the reinforcing rib 312 serves to increase the strength of the first mounting groove 311. The center shaft 334 is fixedly arranged at the center of the bearing set 332. The cam gear 331 is fixed to the other end of the central shaft 334. The cam structure gear 331 is further provided with an eccentric shaft 335, and one end of the piston 333 is fixedly arranged on the eccentric shaft 335. The motor 320 is disposed outside the pump case 310, a motor shaft of the motor 320 extends into the pump case 310, a driving wheel 321 is disposed on the motor shaft, and the driving wheel 321 is meshed with the cam structure gear 331. The motor 320 drives the driving wheel 321 to rotate, and drives the cam gear 331 to rotate through the engagement of the driving wheel 321 and the cam gear 331, so as to further drive the piston 333 fixedly connected thereto to reciprocate in a linear manner, thereby compressing the gas to generate high-pressure inflation gas.

Further, a piston disc 336 is provided at the other end of the piston 333.

Further, the bearing set 332 includes two or more bearings, and the multi-bearing is used for improving the stability of the bearing set 332, so as to ensure that the cam gear 331 and the piston 333 act stably and uniformly, and realize stable and efficient compression of gas.

Further, referring to fig. 3-5, the cam gear 331 is provided with a central hole 3311, and an eccentric hole 3312 is provided beside the central hole 3311. The central shaft 334 passes through the central bore 3311 and the eccentric shaft 335 passes through the eccentric bore 3312.

According to the application, one end of the piston 333 is eccentrically and fixedly arranged on the cam structure gear 331, the cam structure gear 331 drives the piston 333 to reciprocate and linearly move through rotation, so that gas is compressed and high-pressure inflation is realized, parts of the conventional SUP inflator pump are greatly reduced, the volume of the gas compression mechanism 300 in the conventional SUP inflator pump is reduced, the whole volume of the pump core of the conventional SUP inflator pump is reduced, the quality is lighter, the failure rate is reduced, the service life is longer, and the maintenance is convenient.

Referring to fig. 1, 3-4, the gas delivery mechanism 200 includes a connecting base 210 and a compression chamber 220. The compression chamber 220 is disposed between the connection base 210 and the pump housing 310, and has a first end surface 220a and a second end surface 220b disposed opposite to each other. The first end surface 220 of the compression chamber 220 is fixedly connected to the pump housing 310. It should be appreciated that the compression chamber 220 and the pump housing 310 may be fixedly connected in a variety of manners and structures, and that the manner and structure of the fixedly connected manner may be flexibly changed without departing from the scope of the present utility model. Specifically, the first end surface 220 of the compression chamber 220 and the pump case 310 are respectively provided with a plug 221 and a slot 313, and the plug 221 is inserted into the slot, so that the two are fixedly connected.

Referring to fig. 3-4, the pump housing 310 is provided with a housing opening 312 through which the piston 333 extends. A compression chamber port 222 into which the piston 333 extends is provided on the first end surface 220a of the compression chamber 220. The inner wall of the box opening 312 is attached to the outer wall of the compression chamber opening 222, and the two dimensions are matched with each other.

Referring to fig. 4,6-7, the piston disc 336 is disposed in the compression chamber 220, and a sealing pad 337 is disposed between the piston disc 336 and the compression chamber 220, where the sealing pad 337 is used to ensure that the outer wall of the piston disc 336 is attached to the inner wall of the compression chamber 220, and ensure tightness, thereby ensuring the efficiency of compressing gas and high-pressure inflation. Specifically, a groove 3341 is provided on the periphery of the piston disc 336, and a first vent hole 3342 is provided on the disc surface of the piston disc 336. The gasket 337 includes an outer race 3371 and an elastomeric flexible membrane 3372 that are coupled. The outer ring 3371 is sealed against the inner wall of the recess 3341 and the compression chamber 220. The elastic soft rubber piece 3372 is sealed and attached to the disk surface of the piston plate 336, and the first ventilation hole 3342 is opened or closed to control whether the gas in the pump case 310 can enter the compression chamber 220. When the piston disc 336 moves in the direction of the pump case 310 in the compression chamber 220, the volume between the piston disc 336 of the piston and the second end surface 220b of the compression chamber 220 increases, the compression chamber 220 is under negative pressure, the elastic soft rubber sheet 3372 is lifted to open the first vent hole 3342, and the gas in the pump case 310 enters the compression chamber 220 to charge the gas. When the piston plate 336 moves in the compression chamber 220 in a direction away from the pump housing 310, the volume between the piston plate 336 of the piston and the second end surface 220b of the compression chamber 220 decreases, the gas in the compression chamber 220 is compressed to present positive pressure, the elastic soft film 3372 is reset, and the surface of the piston plate 336 and the first vent holes 3342 thereon are sealed and attached.

Referring to fig. 8-9 and 11, the second end surface 220b of the compression chamber 220 is provided with an air outlet hole 223, the end surface of the second end 220b, which is close to the connection seat 210, is provided with an elastic sealing cover 224, and the elastic sealing cover 224 opens or seals the air outlet hole 223 so as to send the compressed air generated in the compression chamber 220 into the connection seat 210 or isolate the compression chamber 220 from the inner cavity of the connection seat 210. The elastic sealing cover 224 is an elastic piece, one end of the elastic sealing cover is fixedly arranged at the second end 220b, the other end of the elastic sealing cover is provided with a silica gel ring 225, and the silica gel ring 225 is matched with the hole wall of the air outlet hole 223 to seal the air outlet hole 223. When the pressure in the compression chamber 220 is higher than the pressure in the connection block 210, the elastic sealing cap 224 is pushed open to open the air outlet 223. When the pressure in the compression chamber 220 is lower than the pressure in the connection seat 210, the elastic sealing cover 224 resets under the action of its own elastic force, and the silica gel ring 225 is sealed and attached to the hole wall of the air outlet hole 223 to seal the air outlet hole 223.

The outer wall of the compression chamber 220 is provided with heat dissipation fins 226, and the heat dissipation fins 226 are used for conducting heat and dissipating heat generated during the compression of the gas in the compression chamber 220.

Referring to fig. 1 and 11, the connection base 210 is further provided with an air outlet pipe 230 and an air inlet pipe 240 on an end surface opposite to the compression chamber 220. The air outlet pipe 230 and the air inlet pipe 240 are disposed adjacent to each other and are all communicated with the connection base 210. It should be understood that the number of the air outlet pipes 230 and the air inlet pipes 240 may be set according to need, and is not limited to one. The air outlet pipe 230 is provided with an air outlet 231, the air outlet 231 is communicated with the product to be inflated, and the air inlet pipe 240 is provided with an air inlet 241. The air outlet pipe 230 is provided with the rapid inflation assembly 270. The rapid inflation assembly 270 includes a brushless motor 271 and a sensor 272, the brushless motor 271 being electrically connected to the sensor 272. The brushless motor 271 is used for blowing air to rapidly charge the compressed air introduced into the connection base 210 and the air introduced into the connection base 210 from the air inlet 241 into the product to be inflated. The sensor 270 detects the air pressure within the connector 210.

Referring to fig. 1, a circuit board 233 is disposed on an outer wall of the air outlet pipe 230, the circuit board 233 is electrically connected to the brushless motor 271 and the sensor 272, and the motor 310 is provided with a control chip inside the circuit board 233. When the sensor 272 detects that the air pressure in the connector 210 is lower than the air pressure in the compression chamber 220 to a preset value, the control chip informs the motor 310 to operate, and the operation state is switched to generate high-pressure compressed air and send the high-pressure compressed air into the connector 210. When the sensor gas 272 detects that the air pressure in the connection seat 210 is higher than the air pressure in the compression cavity 220 to a preset value, the control chip notifies the motor 310 to stop working.

The outer wall of the air outlet pipe 230 is provided with a second mounting groove 234, and the circuit board 233 is disposed in the first mounting groove 311.

Referring to fig. 11-15, a check valve assembly 250 is disposed in the air inlet pipe 240 or below the brushless motor 271, and the check valve assembly 250 is closed or opened to control whether the external air can enter the connection base 210 through the air inlet pipe 240. Specifically, the check valve assembly 250 includes a mounting plate 251 disposed within the air inlet pipe 240, a third mounting groove 252 and a check valve 253. The mounting plate 251 is accommodated in the third mounting groove 252. The center of the mounting plate 251 is provided with a mounting hole 253 and a plurality of second ventilation holes 254 which are distributed in an annular array around the mounting hole 253. The check valve 255 includes an elastic soft rubber sealing plate 2551 and a plunger 2552 disposed at the center of the elastic soft rubber sealing plate 2551. The plunger 2552 is detachably and fixedly inserted into the mounting hole 253, thereby being convenient to replace when the check valve 255 is damaged. The elastic soft rubber sealing piece 2551 is disposed in the mounting groove 252 to seal and cover the mounting hole 253 and the second ventilation hole 254.

When the piston 333 slides in the compression chamber 220 in a direction away from the connection seat 210, the gas in the connection seat 210 enters the compression chamber 220, the connection seat 210 is in a negative pressure state, and the external atmosphere opens the elastic soft rubber sealing piece 2551 in the air inlet pipe 240 and enters the connection seat 210. When the piston 333 slides in the compression chamber 220 toward the direction approaching the connection seat 210, the gas in the compression chamber 220 is compressed and driven into the connection seat 210, so as to realize high-pressure inflation of the connection seat 210. At this time, the air pressure of the connection seat 210 is positive, the elastic soft rubber sealing plate 2551 is elastically restored, and seals and covers the mounting hole 253 and the second ventilation hole 254, that is, seals the air inlet pipe 240.

Further, a sealing structure is disposed between the connection base 210 and the compression cavity 220, and between the compression cavity 220 and the pump case 310, the sealing structure includes a sealing groove and a sealing block, the sealing groove is respectively disposed on the pump case 310 and the connection base 210, the sealing block is respectively disposed on the top and the bottom of the compression cavity 220, a first sealing ring is disposed between the sealing groove and the sealing block, and the sealing structure is used for improving the tightness, thereby ensuring the service performance of the inflator pump core.

According to the inflator pump core, the piston 333 is eccentrically arranged on the cam structure gear 331, so that components in the pump box 310 are simpler and more compact, the volume of the pump box 310 is reduced, and the rapid inflation action is realized by arranging the rapid inflation component 270 in the air outlet pipe, so that the whole volume of the inflator pump core is greatly reduced. External gas can enter the compression cavity 220 through the pump box 310, and can enter the connecting seat 210 through the air inlet pipe 230, so that the inflation efficiency in the inflator pump core is high, the gas is filled, and the compression efficiency is high. The outlet duct 230 with intake pipe 240 is adjacent set up and all with the connecting seat 210 intercommunication reduces the distance that gas flows, improves when the inflation efficiency and the performance of pump core of inflator make use pump whole volume of pump core of inflator is littleer, light, thereby portable outdoor portable uses, improves the convenience, satisfies current user's user demand.

The utility model simplifies the internal structure by reducing the parts, so that the failure rate of the pump core of the inflator pump is reduced, the service life and the performance are prolonged, the difficulty of maintenance and production processing is reduced, the maintenance and assembly efficiency is improved, and the cost is reduced.

The present utility model is not limited to the above embodiments, and other pump cores for inflator pumps, which are obtained by using the same or similar structures or devices as the above embodiments of the present utility model, are within the scope of the present utility model.

Claims (10)

1. The inflator pump core comprises a gas conveying mechanism and a gas compressing mechanism, wherein the gas conveying mechanism is provided with a compressing cavity, and is characterized in that the gas compressing mechanism comprises a pump box, a motor and a pump body assembly arranged in the pump box, the pump body assembly comprises a cam structure gear and a piston, one end of the piston is eccentrically connected with the cam structure gear, a piston disc is arranged at the other end of the piston and is accommodated in the compressing cavity, the motor drives the cam structure gear to drive the piston disc to reciprocate in the compressing cavity to linearly move, so that gas entering the compressing cavity is compressed, and the gas conveying mechanism charges a product to be inflated.

2. The inflator pump core of claim 1, wherein the motor is disposed outside the pump housing, and a drive wheel is disposed on a motor shaft thereof, the drive wheel being in gear engagement with the cam structure.

3. The inflator pump core according to claim 1, wherein the gas delivery mechanism comprises a connecting seat and the compression cavity, the compression cavity is arranged between the connecting seat and the pump case and provided with a first end face and a second end face which are arranged oppositely, the pump case is provided with a case opening for the piston to extend out, the first end face of the compression cavity is provided with a compression cavity opening for the piston to extend in, and the inner wall of the case opening is attached to the outer wall of the compression cavity opening.

4. An inflator pump core according to any one of claims 1 to 3 wherein a groove is provided in the periphery of the piston disc, a first vent hole is provided in the disc face of the piston disc, a gasket is provided between the piston disc and the compression chamber, the gasket comprises an outer ring and an elastic soft rubber sheet connected, the outer ring is in sealing engagement with the groove and the inner wall of the compression chamber, the elastic soft rubber sheet is in sealing engagement with the disc face of the piston disc, and whether gas in the pump chamber can enter the compression chamber is controlled by opening or closing the first vent hole.

5. The inflator pump core of claim 3, wherein the second end surface of the compression chamber is provided with an air outlet, and an elastic sealing cover is provided on a side of the second end surface adjacent to the connection base, and the elastic sealing cover opens or seals the air outlet to send the compressed gas generated in the compression chamber into the connection base or isolate the compression chamber from the inner cavity of the connection base.

6. The inflator pump core of claim 5, wherein the elastic sealing cover is an elastic piece, one end of the elastic sealing cover is fixedly arranged on the second end face, and the other end of the elastic sealing cover is provided with a silica gel ring, and the silica gel ring is matched with the hole wall of the air outlet hole to seal the air outlet hole.

7. The inflator pump core according to claim 6, wherein the connection base is further provided with an air outlet pipe and an air inlet pipe on an end surface opposite to the compression chamber, the air outlet pipe and the air inlet pipe are disposed adjacently and are communicated with the connection base, and the air inlet pipe is provided with an air inlet.

8. The inflator pump core of claim 7, wherein a brushless motor is disposed in the outlet duct, the brushless motor being configured to blow air to rapidly charge the compressed gas entering the connector and the gas entering the connector from the inlet into the product to be inflated.

9. The inflator pump core according to claim 8, wherein a one-way valve assembly is arranged in the air inlet pipe or below the brushless motor, the one-way valve assembly comprises a mounting plate, a third mounting groove and a one-way valve, the mounting plate is arranged in the third mounting groove, a mounting hole and a plurality of second ventilation holes which are distributed in an annular array around the mounting hole are formed in the center of the mounting plate, the one-way valve comprises an elastic soft rubber sealing piece and a plunger arranged in the center of the elastic soft rubber sealing piece, the plunger is detachably and fixedly inserted into the mounting hole, and the elastic soft rubber sealing piece is arranged in the mounting groove to seal and cover the mounting hole and the second ventilation holes.

10. The inflator pump core of claim 8, wherein a sensor is disposed in the outlet tube, and a circuit board is disposed on an outer wall of the outlet tube, and the circuit board is electrically connected to the brushless motor, the sensor, and the motor.