Inflating device

Patent metadata

Field	Value
Publication number	US-11530693-B1
Application number	US-202117350085-A
Country	US
Kind code	B1
Filing date	Jun 17, 2021
Priority date	Jun 17, 2021
Publication date	Dec 20, 2022
Grant date	Dec 20, 2022

Abstract

An inflating device includes an air pump, a valve engaging head, and a pushing apparatus disposed on the air pump and selectively engaging and disengaging the valve engaging head. The valve engaging head includes a main body, a connection assembly coupled to the main body and having a connection hole for a Presta valve and another connection hole for a Schrader valve, and a valve seat movably disposed in the main body. The connection assembly has a receiving hole and the valve seat is movably disposed in the receiving hole. The pushing apparatus selectively contacts and disengages from the connection assembly. The pushing apparatus has a pushing portion adapted to drive the valve seat. The pushing apparatus engaging the valve engaging head includes the pushing portion pushing the first abutting portion, thereby driving the valve seat toward the second connection hole.

First claim

What is claimed is:

1. An inflating device comprising:
an air pump, wherein the air pump includes a cylinder, a plunger movably disposed in the cylinder and being reciprocally movable with respect thereto, and an air tube connected with the cylinder;
a valve engaging head for engaging with a valve to be pumped intercommunicating with the air pump, wherein the valve engaging head includes a main body, a connection assembly coupled to the main body and having a first connection hole for connecting with a Presta valve and a second connection hole for connecting with a Schrader valve, and a valve seat movably disposed in the main body and having a first abutting portion against which a lock nut of the Presta valve abuts and a second abutting portion against which a valve core of the Schrader valve abuts, wherein the main body forms a head portion having a hole and the connection assembly is rotatably inserted in the hole, wherein the main body forms a body portion extending from the head portion and having a through hole which extends therein and intercommunicates with the hole and the air tube, wherein the connection assembly has a receiving hole and the valve seat is movably disposed in the receiving hole, and wherein the receiving hole intercommunicates with the first and second connection holes; and
a pushing apparatus disposed on the air pump and selectively engaging and disengaging the valve engaging head, wherein the pushing apparatus selectively contacts and disengages from the connection assembly, wherein the pushing apparatus has a pushing portion adapted to drive the valve seat, and wherein the pushing apparatus engaging with the valve engaging head includes the pushing portion entering the receiving hole via the first connection hole and pushing the first abutting portion, thereby driving the valve seat toward the second connection hole.

2. The inflating device as claimed in claim 1 , wherein the connection assembly includes a first connection member and a second connection member connected with the first connection member, wherein the first connection hole and the receiving hole extend in the first connection member, and wherein the second connection hole extends in the second connection member.

3. The inflating device as claimed in claim 2 , wherein the first and the second connection members are releasably engaged with each other.

4. The inflating device as claimed in claim 3 , wherein the first and the second connection members are in thread engagement.

5. The inflating device as claimed in claim 2 , wherein the connection assembly has an air passage which extends between an inner periphery of the hole and an outer periphery of the first connection member, wherein the first connection member has an air vent which extends radially therethrough and intercommunicates with the air passage, and wherein the air vent intercommunicates the through hole.

6. The inflating device as claimed in claim 5 , wherein the valve seat has an outer periphery including an airtight ring mounted thereon, and wherein the airtight ring abuts against an inner periphery of the receiving hole.

7. The inflating device as claimed in claim 6 , wherein the airtight ring is located between the air vent and the second connection hole when the valve seat is disposed adjacent to the second connection hole.

8. The inflating device as claimed in claim 7 , wherein the first connection member has a first shoulder which delimits a distal end of the receiving hole and extends radially between inner peripheries of the receiving hole and the first connection hole, and wherein the second connection member has a second shoulder which extends radially and abuts against a distal end of the first connection member.

9. The inflating device as claimed in claim 8 , wherein the second abutting portion includes an airtight sleeve mounted therearound and abutting against the inner periphery of the receiving hole, and wherein the valve seat is movable to a first position in which the first abutting portion abuts against the first shoulder and a second position in which the airtight sleeve abuts against the second shoulder.

10. The inflating device as claimed in claim 5 , wherein the first connection member includes two seal rings mounted therearound and abutting against the inner periphery of the hole, wherein the first connection member has two annular grooves retaining the two seal rings, wherein the two annular grooves extend between the inner periphery of the hole and the outer periphery of the first connection member, and wherein the air passage is disposed between the two annular grooves.

11. The inflating device as claimed in claim 8 , wherein the first connection member has a large diameter section and a small diameter section, wherein the large diameter section is disposed outside the hole, wherein the small diameter section extends through the hole, wherein the second connection member is mounted on the small diameter section, wherein the first connection hole extends in the large diameter section, and wherein the receiving hole extends in the small diameter section.

12. The inflating device as claimed in claim 1 , wherein the pushing apparatus delimits a holding space in which the valve engaging head is selectively inserted, and wherein the pushing portion extends in the holding space.

13. The inflating device as claimed in claim 12 , wherein the pushing portion extends from an inner periphery of the holding space, and wherein the pushing portion extends outside the holding space.

14. The inflating device as claimed in claim 1 , wherein the pushing apparatus is coupled to the plunger, and wherein the pushing apparatus is also coupled to a handle of the air pump that is adapted to be gripped and moved reciprocally with the plunger upon the operation of the air pump.

15. The inflating device as claimed in claim 14 , wherein the handle is pivotally coupled to the pushing apparatus.

16. The inflating device as claimed in claim 14 , wherein the pushing apparatus has a connecting portion connecting with the plunger, and wherein the connecting portion and the plunger are in thread engagement.

17. The inflating device as claimed in claim 1 , wherein the pushing apparatus has a connecting portion connecting with and the cylinder, and wherein the connecting portion is disposed on an outer periphery of the cylinder.

18. The inflating device as claimed in claim 17 , wherein the connection portion has an inner arcuate surface abutting against the outer periphery of the cylinder.

19. The inflating device as claimed in claim 18 , wherein the connection portion has two holding segments which have first corresponding ends disposed separately, and wherein the first corresponding ends are separated by a gap.

20. The inflating device as claimed in claim 19 , wherein the two holding segments have second corresponding ends secured by a fastener, and wherein the fastener insert in the second corresponding ends.

Assignees

• Wu Scott

Inventors

• Wu Scott

Classifications

• F04B39/123

  Fluid connections · CPC title

• F04B35/008 Primary

  the means being a fluid transmission link · CPC title

• Y10T137/3724

  With coupling means · CPC title

• F16K15/20

  specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable bodies B60C29/00) · CPC title

• F04B33/005 Primary

  specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles · CPC title