CA2867769A1 - Single-opening pumping nozzle and direct-pressing dual-opening automatic-switching pumping nozzle - Google Patents
Single-opening pumping nozzle and direct-pressing dual-opening automatic-switching pumping nozzle Download PDFInfo
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- CA2867769A1 CA2867769A1 CA2867769A CA2867769A CA2867769A1 CA 2867769 A1 CA2867769 A1 CA 2867769A1 CA 2867769 A CA2867769 A CA 2867769A CA 2867769 A CA2867769 A CA 2867769A CA 2867769 A1 CA2867769 A1 CA 2867769A1
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- Prior art keywords
- pawls
- bore
- plug
- section
- opening
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
- F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention provides a single-opening pumping nozzle and a direct-pressing dual-opening automatic-switching pumping nozzle, which at least include a main body, a joint mouth, and a plug. The joint mouth includes a joint opening and is received in an end of the plug to be collectively disposed in a bore of the main body. At least one end or two ends of the plug are each provided with a plurality of annularly distributed and mutually spaced pawls. Each pawl has an outside surface forming an arc section. The plug includes, formed in the interior thereof, at least one flow channel in communication with the joint opening. The main body includes an air supply hole connectable to an air pressure source. The plug is reciprocally movable in the main body between first and second positions. With such a structure, it is possible to operate with a single hand for having a valve stem to be inflated inserted into the joint mouth with simultaneously driving the plug to move to a predetermined position so that the air supply hole is set to simultaneously communicate with an internal flow channel of the plug and the joint opening. The bore simultaneously compresses all pawls, so that under the guidance of the arc sections of the pawls, the pawls automatically and tightly clamp the joint mouth in the radial direction so that filling air into the valve stem to be inflated can be performed. Two ends of the plug are both provided with pawls that are annularly distributed and mutually spaced from each other. The pawls of the two ends can respectively receive joint mouths of different types therein so that it is possible to operate with a single hand to fill air to valve stems to be inflated of different types.
Description
TITLE: SINGLE-OPENING PUMPING NOZZLE AND
DIRECT-PRESSING DUAL-OPENING
AUTOMATIC-SWITCHING PUMPING NOZZLE
(a) Technical Field of the Invention The present invention generally relates to a pumping nozzle of a single use or dual uses, and more particularly to a technical field of enabling direct execution of air pumping by using one hand to control a valve stem to be inflated to insert into a joint opening so that the operation smooth and convenience of the dual-use pumping nozzle in pumping air.
(b) Description of the Prior Art A conventional dual-use pumping nozzle is known from prior art patent documents, such as those disclosed in Taiwan Patent Application Nos.
095107665 and 097203517. Such known patent documents have the following disadvantages:
(1) Before air is pumped, those patent documents require a main body to be held with one to control a valve stem to be inflated to inserted into any one of the joint opening and then another hand needs to push a switch bar to cause an internal pressing cylinder to move downward for forcing the joint opening to clam against the valve stem to be inflated. Finally, air pumping can be
DIRECT-PRESSING DUAL-OPENING
AUTOMATIC-SWITCHING PUMPING NOZZLE
(a) Technical Field of the Invention The present invention generally relates to a pumping nozzle of a single use or dual uses, and more particularly to a technical field of enabling direct execution of air pumping by using one hand to control a valve stem to be inflated to insert into a joint opening so that the operation smooth and convenience of the dual-use pumping nozzle in pumping air.
(b) Description of the Prior Art A conventional dual-use pumping nozzle is known from prior art patent documents, such as those disclosed in Taiwan Patent Application Nos.
095107665 and 097203517. Such known patent documents have the following disadvantages:
(1) Before air is pumped, those patent documents require a main body to be held with one to control a valve stem to be inflated to inserted into any one of the joint opening and then another hand needs to push a switch bar to cause an internal pressing cylinder to move downward for forcing the joint opening to clam against the valve stem to be inflated. Finally, air pumping can be
2 carried out. Such a mode of operation that relies on two hands is inconvenient and causes a sense of time-consuming and labor-consuming.
(2) Those known patent documents make use of the downward movement of the pressing cylinder to force the joint opening to deform in the axial direction thereby "indirectly" inducing deformation of the joint opening in a radial direction to clamp against the valve stern to be inflated. The radial deformation of the joint opening is very limited and thus the force that the joint opening applies to clamp the valve stem to be inflated is also limited, whereby oftentimes, air leaking can be found in pumping air.
(2) Those known patent documents make use of the downward movement of the pressing cylinder to force the joint opening to deform in the axial direction thereby "indirectly" inducing deformation of the joint opening in a radial direction to clamp against the valve stern to be inflated. The radial deformation of the joint opening is very limited and thus the force that the joint opening applies to clamp the valve stem to be inflated is also limited, whereby oftentimes, air leaking can be found in pumping air.
(3) Those known patent documents provide structures that are very complicated and drawbacks of being not able to reduce the costs of manufacture and assembly may result.
SUMMARY OF THE INVENTION
A primary object of the present invention is to allow a pumping nozzle to enable air pumping to be carried out with a one-hand operation.
A secondary object of the present invention is to provide a pumping nozzle having two types ofjoint openings so as to allow the pumping nozzle to carry out air pumping with one-hand operation and also allow for free selection and use according to the type of valve stern to be inflated.
The disclosure of the present invention provides a direct-pressing dual-opening automatic-switching pumping nozzle, which at least comprises:
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
an annular first joint mouth, which comprises a first joint opening for receiving a first valve stem to be inflated to insert therein;
an annular second joint mouth, which comprises a second joint opening for receiving a second valve stem to be inflated to insert therein; and a plug, which is movable in the bore in a limited manner in an axil direction between first and second positions, the plug comprising a plurality of first and second pawls, the first pawls being arranged in a spaced manner to show an annular form to define a first contraction hole that is coaxial with the bore and is contractible in a radial direction, the first contraction hole receiving
SUMMARY OF THE INVENTION
A primary object of the present invention is to allow a pumping nozzle to enable air pumping to be carried out with a one-hand operation.
A secondary object of the present invention is to provide a pumping nozzle having two types ofjoint openings so as to allow the pumping nozzle to carry out air pumping with one-hand operation and also allow for free selection and use according to the type of valve stern to be inflated.
The disclosure of the present invention provides a direct-pressing dual-opening automatic-switching pumping nozzle, which at least comprises:
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
an annular first joint mouth, which comprises a first joint opening for receiving a first valve stem to be inflated to insert therein;
an annular second joint mouth, which comprises a second joint opening for receiving a second valve stem to be inflated to insert therein; and a plug, which is movable in the bore in a limited manner in an axil direction between first and second positions, the plug comprising a plurality of first and second pawls, the first pawls being arranged in a spaced manner to show an annular form to define a first contraction hole that is coaxial with the bore and is contractible in a radial direction, the first contraction hole receiving
4 the first joint mouth to coaxially insert therein and couple thereto, the second pawls being arranged in a spaced manner to show an annular form to define a second contraction hole that is coaxial with the bore and is contractible in a radial direction, the second contraction hole receiving the second joint mouth to coaxially insert therein and couple thereto, wherein the first valve stem to be inflated, when being inserted into the first joint mouth, simultaneously drives the plug to move to the first position, making the bore release the second pawls and compress the first pawls to cause the first contraction hole to automatically and tightly clamp the first joint mouth in the radial direction with the air supply hole in communication with the first joint opening so that filling air into the first valve stem to be inflated can be performed; and the second valve stem to be inflated, when being inserted into the second joint mouth, simultaneously drives the plug to move to the second position, making the bore release the first pawls and compress the second pawls to cause the second contraction hole to automatically and tightly clamp the second joint mouth in the radial direction with the air supply hole in communication with the second joint opening so that filling air into the second valve stem to be inflated can be perfoinied.
The present invention also provides a single-opening puniping nozzle, which comprises:
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
an annular first joint mouth, which comprises a first joint opening for receiving a valve stem to be inflated to insert therein and couple therewith, the
The present invention also provides a single-opening puniping nozzle, which comprises:
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
an annular first joint mouth, which comprises a first joint opening for receiving a valve stem to be inflated to insert therein and couple therewith, the
5 first joint mouth being received in a plug;
a plug, which is received in the main body and is reciprocally movable in the bore of the main body in a limited manner in an axil direction between first and second positions, the plug having an end that foirns a plurality of pawls and an opposite end that forms a dosed press-down section, the plug having an interior in which a flow channel is formed and in communication with an outer circumferential surface, the pawls being arranged to alternate with contraction slots to show an annular form to define a contraction hole that is coaxial with the bore and is contractible in a radial direction, wherein each of the pawls has an outer surface that foul IS a radially expanded arc section, the 1 5 contraction hole receiving the first joint mouth to coaxially insert therein and couple thereto, wherein the first valve stem to be inflated, when inserted into the first joint mouth, simultaneously drives the plug to move to the first position, making the press-down section project outside the bore and also making the bore compress the pawls, whereby under the guidance of the arc sections of the pawls, the contraction hole automatically and tightly clamp the
a plug, which is received in the main body and is reciprocally movable in the bore of the main body in a limited manner in an axil direction between first and second positions, the plug having an end that foirns a plurality of pawls and an opposite end that forms a dosed press-down section, the plug having an interior in which a flow channel is formed and in communication with an outer circumferential surface, the pawls being arranged to alternate with contraction slots to show an annular form to define a contraction hole that is coaxial with the bore and is contractible in a radial direction, wherein each of the pawls has an outer surface that foul IS a radially expanded arc section, the 1 5 contraction hole receiving the first joint mouth to coaxially insert therein and couple thereto, wherein the first valve stem to be inflated, when inserted into the first joint mouth, simultaneously drives the plug to move to the first position, making the press-down section project outside the bore and also making the bore compress the pawls, whereby under the guidance of the arc sections of the pawls, the contraction hole automatically and tightly clamp the
6 first joint mouth in the radial direction and the air supply hole is simultaneously communicating with a flow channel from the interior of the plug to an outer circumferential surface thereof and the first joint opening so that filling air into the valve stem to be inflated can be performed.
Thus, the present invention posses at least the following advantages:
(1) In pumping air, the present invention allows for easy operation through one hand operating the main body. Such a single hand operation mode is far easier than the conventional way of operating with two hands and thus achieve improvement of operation perfomiance for time and effort saving.
(2) The pawls of the present invention are arranged to directly compress the diameter of the joint mouth to deform in the radial direction so as to forcibly clamp and fix the valve stem to be inflated. Such a structural relationship minimizes air leak during an air pumping operation.
(3) The present invention is achieved with only four components, including a main body, a first joint mouth, a second joint mouth, and a plug, and the overall structure is far simpler than the known devices.
The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become
Thus, the present invention posses at least the following advantages:
(1) In pumping air, the present invention allows for easy operation through one hand operating the main body. Such a single hand operation mode is far easier than the conventional way of operating with two hands and thus achieve improvement of operation perfomiance for time and effort saving.
(2) The pawls of the present invention are arranged to directly compress the diameter of the joint mouth to deform in the radial direction so as to forcibly clamp and fix the valve stem to be inflated. Such a structural relationship minimizes air leak during an air pumping operation.
(3) The present invention is achieved with only four components, including a main body, a first joint mouth, a second joint mouth, and a plug, and the overall structure is far simpler than the known devices.
The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become
7 apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
8 BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 and 2 are schematic views showing a combination where a first valve stem to be inflated is inserted.
FIG 3 is a cross-sectional view of the combination of FIG 2.
FIG 4 is a cross-sectional view showing a combination where a second valve stern to be inflated is inserted.
FIG 5 is an exploded view showing a second embodiment of the present invention.
FIG 6 is a perspective view of FIG 5 in an assembled form.
FIGS. 7 and 8 are schematic views illustrating the condition of a use of the second embodiment of the present invention.
FIGS. 9 and 10 are schematic views illustrating the condition of another use of the second embodiment of the present invention.
FIG 11 is an exploded view showing a third embodiment of the present 1 5 invention.
FIGS. 1 and 2 are schematic views showing a combination where a first valve stem to be inflated is inserted.
FIG 3 is a cross-sectional view of the combination of FIG 2.
FIG 4 is a cross-sectional view showing a combination where a second valve stern to be inflated is inserted.
FIG 5 is an exploded view showing a second embodiment of the present invention.
FIG 6 is a perspective view of FIG 5 in an assembled form.
FIGS. 7 and 8 are schematic views illustrating the condition of a use of the second embodiment of the present invention.
FIGS. 9 and 10 are schematic views illustrating the condition of another use of the second embodiment of the present invention.
FIG 11 is an exploded view showing a third embodiment of the present 1 5 invention.
9 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
Referring to FIGS. 1-4, the instant embodiment provides a direct-pressing dual-opening automatic-switching pumping nozzle, which at least comprises:
a main body 10, which comprises a bore 11 extending through top and bottom ends thereof and an air supply hole 12 extending from a portion between the two ends of the bore 11 so that the air supply hole 12 supplies an air pressure source to the bore 11, the bore 11 comprising a first lodging section 13 formed by recessing a lower end portion of a wall thereof the bore 11 further comprising a second lodging section 14 formed by recessing an upper end portion of the wall thereof;
an annular first joint mouth 20, which comprises a first joint opening 21 for receiving a first valve stem to be inflated 91 to insert therein;
an annular second joint mouth 30, which comprises a second joint opening 31 for receiving a second valve stem to be inflated 92 to insert therein;
and a plug 40, which is fit in the bore 11 in a coaxial and slidable manner and 5 has a length greater than the bore 11 so that opposite top and bottom ends of the plug 40 extending outside the bore 11, the plug 40 having a portion located within a range corresponding to the bore 11 comprising, through recessing, a first channel 411 and a second channel 412 that are not in communication with each other with the second channel 412 being located above the first channel
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
Referring to FIGS. 1-4, the instant embodiment provides a direct-pressing dual-opening automatic-switching pumping nozzle, which at least comprises:
a main body 10, which comprises a bore 11 extending through top and bottom ends thereof and an air supply hole 12 extending from a portion between the two ends of the bore 11 so that the air supply hole 12 supplies an air pressure source to the bore 11, the bore 11 comprising a first lodging section 13 formed by recessing a lower end portion of a wall thereof the bore 11 further comprising a second lodging section 14 formed by recessing an upper end portion of the wall thereof;
an annular first joint mouth 20, which comprises a first joint opening 21 for receiving a first valve stem to be inflated 91 to insert therein;
an annular second joint mouth 30, which comprises a second joint opening 31 for receiving a second valve stem to be inflated 92 to insert therein;
and a plug 40, which is fit in the bore 11 in a coaxial and slidable manner and 5 has a length greater than the bore 11 so that opposite top and bottom ends of the plug 40 extending outside the bore 11, the plug 40 having a portion located within a range corresponding to the bore 11 comprising, through recessing, a first channel 411 and a second channel 412 that are not in communication with each other with the second channel 412 being located above the first channel
10 411, the plug 40 having an outer circumference that is provided with a first seal gasket ring 421 mounted thereto at a location below the first channel 411, a second seal gasket ring 422 mounted thereto at a location above the second channel 412, and a third seal gasket ring 423 mounted thereto at a location between the first channel 411 and the second channel 412 in such a way that the first seal gasket ring 421, the second seal gasket ring 422, and the third seal gasket ring 423 are in air-tight engagement with the bore 11 so as to provide air-tight sealing of the first channel 411 and the second channel 412, the plug 40 having an outer circumference, which is provided with a first buckling section 431 engageable with the first lodging section 13 and a second buckling section 432 engageable with the second lodging section 14, so that when the
11 plug 40 is moved in an axial direction of the bore 11 to a first position, the first buckling section 431 mates the first lodging section 13 and the second buckling section 432 is detached from the second lodging section 14 and the first channel 411 is set in communication with the air supply hole 12 and the top end of the plug 40 is set to project further outside the bore 11 to allow a user to forcibly press down to release the mating engagement of the first buckling section 431 with the first lodging section 13; and when the plug 40 is moved in the axial direction of the bore 11 to a second position, the second buckling section 432 gets into mating engagement with the second lodging section 14 and the first buckling section 431 is separate from the first lodging section 13 with the second channel 412 in communication with the air supply hole 12 and the bottom end of the plug 40 projecting further outside the bore 11 to allow the user to forcibly press upward to release the mating engagement of the second buckling section 432 with the second lodging section 14, whereby the plug 40 is allowed to make limited movement between the first and second positions, the plug 40 being provided, at the bottom end thereof, with a plurality of first pawls 44 extending in an axial direction thereof and being also provided, at the top end thereof, with a plurality of the second pawls 45 extending in the axial direction, wherein the first pawls 44 are arranged to alternate with first contraction slots 46 to show an annular form so that inner
12 sides of the first pawls /PI collectively define a first contraction hole 47 that is coaxial with the bore 11 and is contractible in a radial direction and, oppositely, outer sides of the first pawls 44 each fowl an arc section for being radially pushed by the bore 11 with the first buckling section 431 being formed as being raised on the arc section, the first contraction hole 47 being arranged to receive the first joint mouth 20 to coaxially insert therein and couple thereto in such a way that the first joint opening 21 is in communication with the first channel 411; and wherein the second pawls 45 are arranged to alternate with second contraction slots 48 to show an annular thini so that inner sides of the second pawls 45 collectively define a second contraction hole 49 that is coaxial with the bore 11 and is contractible in a radial direction and, oppositely, outer sides of the second pawls 45 each form an arc section for being radially pushed by the bore 11 with the second buckling section 432 being foiined as being raised on the conic section, the second contraction hole 49 being arranged to receive the second joint mouth 30 to coaxially insert therein and couple thereto in such a way that the second joint opening 31 is in communication with the second channel 412.
Referring to FIGS. 2 and 3, a user, when using one hand to operate the main body 10 to have a first valve stem to be inflated 91 insert into the first joint opening 21 of the first joint mouth 20, simultaneously drives the plug
Referring to FIGS. 2 and 3, a user, when using one hand to operate the main body 10 to have a first valve stem to be inflated 91 insert into the first joint opening 21 of the first joint mouth 20, simultaneously drives the plug
13 to move to the first position, where the first buckling section 431 is in mating engagement with the first lodging section 13 to thereby position the plug 40 in the bore 11 and, under this condition, the bore 11 releases the outer circumference of the second pawls 45 and forcibly compress the arc sections formed in the outer circumference of the first pawls 44 to cause the first contraction hole 47 to automatically and radially clamp an outer circumference of the first joint mouth 20 so that the first joint opening 21 directly, radially, and securely clamps and fixes the first valve stem to be inflated 91. Afterwards, air pressure source is introduced in through the air supply hole 12 to fill air into the first valve stem to be inflated 91 for inflation.
After the inflation is completed, the top end of the plug 40 is pressed down to force the first buckling section 431 to separate from the first lodging section 13 to allow the bore 11 to release the arc sections 1-wined on the outer circumference of the first pawls 44 to thereby release the clamped and fixed condition between the first joint mouth 20 and the first valve stem to be inflated 91.
Referring to FIG. 4, the user, when using one hand to operate the main body 10 to have a second valve stem to be inflated 92 insert into the second joint opening 31 of the second joint mouth 30, simultaneously drives the plug 40 to move to the second position, where the second buckling section 432 is in
After the inflation is completed, the top end of the plug 40 is pressed down to force the first buckling section 431 to separate from the first lodging section 13 to allow the bore 11 to release the arc sections 1-wined on the outer circumference of the first pawls 44 to thereby release the clamped and fixed condition between the first joint mouth 20 and the first valve stem to be inflated 91.
Referring to FIG. 4, the user, when using one hand to operate the main body 10 to have a second valve stem to be inflated 92 insert into the second joint opening 31 of the second joint mouth 30, simultaneously drives the plug 40 to move to the second position, where the second buckling section 432 is in
14 mating engagement with the second lodging section 14 to thereby position the plug 40 in the bore 11 and, under this condition, the bore 11 releases the outer circumference of the first pawls 44 and forcibly compress the arc sections formed in the outer circumference of the second pawls 45 to cause the second pawls 45 to automatically and radially clamp an outer circumference of the second joint mouth 30 so that the second joint opening 31 directly, radially, and securely clamps and fixes the second valve stem to be inflated 92.
Afterwards, air pressure source is introduced in through the air supply hole to fill air into the second valve stern to be inflated 92 for inflation. After the inflation is completed, the bottom end of the plug 40 is pressed upward to force the second buckling section 432 to release the arc sections formed on the outer circumference of the second pawls 45 to thereby release the clamped and fixed condition between the second joint mouth 30 and the second valve stem to be inflated 92.
The present invention makes the overall structure more firm and stable and provides an an-angement that the first pawls 44 are each provided, at a bottom end thereof, with a first stop section 441 in such a way that an outer edge of the first stop section ________________________________ is located outside the bore 11 and defines a diameter that is greater than that of the bore 11 with an inner edge of the first stop section 441 engaging a bottom end of the first joint mouth 20; and the second pawls 45 are each provided, at a top end thereof, with a second stop section 451 in such a way that an outer edge of the second stop section 451 is located outside the bore 11 and defines a diameter that is greater than that of the bore 11 with an inner edge of the second stop section 451 engaging a top 5 end of the second joint mouth 30 so that the plug 40 is prevented from separating from the bore 11, the first joint mouth 20 is prevented from separating from the first pawls 44, and the second joint mouth 30 is prevented from separating from the second pawls 45, and the first stop sections /1/11 and the second stop sections 451 respectively clamp and hold the valve stems to be 10 inflated 91, 92 to prevent the valve stems to be inflated from detaching during the process of air filling.
From the above description, it is realized that the present invention possesses at least the following advantages:
(1) The present invention allows for operation with one single hand to
Afterwards, air pressure source is introduced in through the air supply hole to fill air into the second valve stern to be inflated 92 for inflation. After the inflation is completed, the bottom end of the plug 40 is pressed upward to force the second buckling section 432 to release the arc sections formed on the outer circumference of the second pawls 45 to thereby release the clamped and fixed condition between the second joint mouth 30 and the second valve stem to be inflated 92.
The present invention makes the overall structure more firm and stable and provides an an-angement that the first pawls 44 are each provided, at a bottom end thereof, with a first stop section 441 in such a way that an outer edge of the first stop section ________________________________ is located outside the bore 11 and defines a diameter that is greater than that of the bore 11 with an inner edge of the first stop section 441 engaging a bottom end of the first joint mouth 20; and the second pawls 45 are each provided, at a top end thereof, with a second stop section 451 in such a way that an outer edge of the second stop section 451 is located outside the bore 11 and defines a diameter that is greater than that of the bore 11 with an inner edge of the second stop section 451 engaging a top 5 end of the second joint mouth 30 so that the plug 40 is prevented from separating from the bore 11, the first joint mouth 20 is prevented from separating from the first pawls 44, and the second joint mouth 30 is prevented from separating from the second pawls 45, and the first stop sections /1/11 and the second stop sections 451 respectively clamp and hold the valve stems to be 10 inflated 91, 92 to prevent the valve stems to be inflated from detaching during the process of air filling.
From the above description, it is realized that the present invention possesses at least the following advantages:
(1) The present invention allows for operation with one single hand to
15 operate and control the main body for receiving a valve stem to be inflated to insert therein and to conveniently and simultaneously push the plug to a predetermined location with the bore driving the corresponding pawls and joint mouth to automatically clamp and fix the valve stem to be inflated.
Such a single hand operation mode is far easier than the conventional way of operating with two hands.
Such a single hand operation mode is far easier than the conventional way of operating with two hands.
16 (2) The present invention allows the joint mouth, through the coaxial driving relationship between the bore and the pawls, to "directly and sufficiently" deform in the radial direction to clamp and fix the valve stem to be inflated, so that the force that the joint mouth applies to clamp and fix the valve stem to be inflated is increased to help minimize air leak during the process of pumping air and the pawls can hold and fix the valve stem to be inflated to prevent the valve stem to be inflated from separating during the process of pumping air.
Referring to FIGS. 5-8, a second embodiment of the present invention is shown, which provides a single-opening pumping nozzle 50, which at least comprises a main body 51, a plug 52, and a first joint mouth 55.
The main body 51 comprises a bore 511 formed to extend therethrough and has an outer circumferential surface on which a tubular stem 515 is formed in such a way that the tubular stern 515 is in communication with the bore 511 through an air supply hole 514 connected therebetween. The main body 515 has a top end in which a radially reduced annular rim 512 is foil led and a bottom end having an outer circumferential surface in which an external thread 513 is formed to receive a retention ring 57 to screw therewith and fix thereon. The retention ring 57 comprises a through hole 571 axially extending therethrough. The through hole 571 has an inner circumferential
Referring to FIGS. 5-8, a second embodiment of the present invention is shown, which provides a single-opening pumping nozzle 50, which at least comprises a main body 51, a plug 52, and a first joint mouth 55.
The main body 51 comprises a bore 511 formed to extend therethrough and has an outer circumferential surface on which a tubular stem 515 is formed in such a way that the tubular stern 515 is in communication with the bore 511 through an air supply hole 514 connected therebetween. The main body 515 has a top end in which a radially reduced annular rim 512 is foil led and a bottom end having an outer circumferential surface in which an external thread 513 is formed to receive a retention ring 57 to screw therewith and fix thereon. The retention ring 57 comprises a through hole 571 axially extending therethrough. The through hole 571 has an inner circumferential
17 surface in which an intemal thread 572 is fonned. The retention ring 57 has a bottom end in which a radially reduced annular support rim 573 is fauned.
The plug 52 has a top end that is closed and has an outer circumferential surface that forms a shoulder 522 at a location close to the top end with a diameter-reduced press-down section 521 formed above the shoulder 522 and a bottom end to which an annular pressing member 56 is coupled. The outer circumferential surface of the plug comprises two circumferential groove 523, 526 formed therein and spaced from each other by a distance. The circumferential grooves 523, 526 respectively receive and retain a first seal ring 53 and z second seal ring 54 therein. A portion between the circumferential grooves 523, 526 is recessed to form a channel 524. A
portion of the channel 524 is open to define an air passageway 525 that extends in a radial direction into a hollow interior of the plug 52 that extends down to a bottom end to form a joint section 528 in such a way that the joint section 528 is in the form of a flow channel extending to the bottom end and in communication with the air passageway 525 and has an outer circumferential surface in which an extemal thread 527 is fonned for screwing to and coupling with the annular pressing member 56. The annular pressing member 56 comprises a contraction hole 561 axially extending therethrough.
The contraction hole 561 has an inner circumferential surface forming an
The plug 52 has a top end that is closed and has an outer circumferential surface that forms a shoulder 522 at a location close to the top end with a diameter-reduced press-down section 521 formed above the shoulder 522 and a bottom end to which an annular pressing member 56 is coupled. The outer circumferential surface of the plug comprises two circumferential groove 523, 526 formed therein and spaced from each other by a distance. The circumferential grooves 523, 526 respectively receive and retain a first seal ring 53 and z second seal ring 54 therein. A portion between the circumferential grooves 523, 526 is recessed to form a channel 524. A
portion of the channel 524 is open to define an air passageway 525 that extends in a radial direction into a hollow interior of the plug 52 that extends down to a bottom end to form a joint section 528 in such a way that the joint section 528 is in the form of a flow channel extending to the bottom end and in communication with the air passageway 525 and has an outer circumferential surface in which an extemal thread 527 is fonned for screwing to and coupling with the annular pressing member 56. The annular pressing member 56 comprises a contraction hole 561 axially extending therethrough.
The contraction hole 561 has an inner circumferential surface forming an
18 internal thread 562 and a bottom end forming a plurality of pawls 563. The pawls 563 are arranged to alternate with contraction slots 564 to show an annular form so as to define a contraction hole 561 that is coaxial with the bore 511 and is contractible in a radial direction. The pawls 563 are each provided, at a bottom end thereof, with a radially extending barb 5631. The pawls 563 each have an outer surface forming a radially expanded arc section 565, so that the pawls 563 is radially contractible as being acted upon by a force and is allowed to automatically expand to resume the original configuration when the force is removed.
The first joint mouth 55 comprises a first joint opening 551 formed to axially extend therethrough. The first joint opening 551 has an inner circumferential surface and comprises a radially and inwardly reduced annular wedge rim 552. The first joint mouth 55 is coaxially received in the contraction hole 561 and the first joint mouth 55 is collectively supported and retained by the barbs 5631 at the bottom end of the pawls 563.
Referring to FIGS. 7 and 8, in pumping air with the single-use pumping nozzle 50 of the instant embodiment, the tubular stem 515 is first coupled to an air pressure source (not shown). A first valve stem to be inflated 91, when insert into and coupling with the first joint opening 551 of the first joint mouth 55, conveniently and simultaneously drive the plug 52 to move upward,
The first joint mouth 55 comprises a first joint opening 551 formed to axially extend therethrough. The first joint opening 551 has an inner circumferential surface and comprises a radially and inwardly reduced annular wedge rim 552. The first joint mouth 55 is coaxially received in the contraction hole 561 and the first joint mouth 55 is collectively supported and retained by the barbs 5631 at the bottom end of the pawls 563.
Referring to FIGS. 7 and 8, in pumping air with the single-use pumping nozzle 50 of the instant embodiment, the tubular stem 515 is first coupled to an air pressure source (not shown). A first valve stem to be inflated 91, when insert into and coupling with the first joint opening 551 of the first joint mouth 55, conveniently and simultaneously drive the plug 52 to move upward,
19 having the press-down section 521 projecting outside the bore 511 with the annular shoulder 522 abutting the annular rim 512 (this being the first position) so as not to move upward further. During the upward movement, the arc sections 565 of the pawls 563 are each pushed by the annular support rim 573 at the bottom end of the bore 511 so that under the guidance of the arc sections 565 of the pawls 563, the contraction hole 561 automatically and tightly clamps the first joint mouth 55 in the radial direction. The first joint mouth 55 is thus compressed and in turn tightly clamp and hold the first valve stem to be inflated 91, where the air supply hole 514 is set in communication with the channel 524, the joint section 528, and the first joint opening 551 in order to fill air into the first valve stem to be inflated 91. The first valve stem to be inflated 91 can be an American valve.
Further referring to FIGS. 9 and 10, a single-use pumping nozzle that is applicable to the second valve stem to be inflated 92 is shown, where the second valve stem to be inflated 92 is a French valve, and that is slightly different in the configuration of which a joint section 528A of a plug 52A and a second joint mouth 55A, while the remaining constituent components and parts are identical to the pervious embodiment. The joint section 528A of the plug 52A is formed with an expanded flow channel to receive the French valve to insert therein. The second joint mouth 55A has an inner circumferential surface on which only an annular rim 552A is formed in order to tightly engage and clamp a corresponding portion of the French valve.
The way of use and operation are similar to the previous embodiment so that repeated description is omitted.
5 Referring to FIG 11, which shows another embodiment of the present invention, rigid pawls 566 that are of the same number as the pawls 563 are arranged outside the pawls 563. In using the embodiment, the pawls 563 are compressed and pushed inward by the rigid pawls 566 to compress the contraction hole 561 and the first joint mouth 55 thereby increasing the 10 clamping force applied to the first valve stem to be inflated 91 and the second valve stem to be inflated 92.
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
15 While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without
Further referring to FIGS. 9 and 10, a single-use pumping nozzle that is applicable to the second valve stem to be inflated 92 is shown, where the second valve stem to be inflated 92 is a French valve, and that is slightly different in the configuration of which a joint section 528A of a plug 52A and a second joint mouth 55A, while the remaining constituent components and parts are identical to the pervious embodiment. The joint section 528A of the plug 52A is formed with an expanded flow channel to receive the French valve to insert therein. The second joint mouth 55A has an inner circumferential surface on which only an annular rim 552A is formed in order to tightly engage and clamp a corresponding portion of the French valve.
The way of use and operation are similar to the previous embodiment so that repeated description is omitted.
5 Referring to FIG 11, which shows another embodiment of the present invention, rigid pawls 566 that are of the same number as the pawls 563 are arranged outside the pawls 563. In using the embodiment, the pawls 563 are compressed and pushed inward by the rigid pawls 566 to compress the contraction hole 561 and the first joint mouth 55 thereby increasing the 10 clamping force applied to the first valve stem to be inflated 91 and the second valve stem to be inflated 92.
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
15 While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without
20 departing in any way from the spirit of the present invention.
Claims (10)
1. A direct-pressing dual-opening automatic-switching pumping nozzle, comprising:
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
a first joint mouth, which comprises a first joint opening;
a second joint mouth, which comprises a second joint opening;
and a plug, which is movable in the bore in a limited manner in an axil direction between first and second positions, the plug comprising a plurality of first and second pawls, the first pawls being arranged to alternate with first contraction slots to define a first contraction hole that is coaxial with the bore and is contractible in a radial direction, the first contraction hole receiving the first joint mouth to coaxially insert therein and couple thereto, the second pawls being arranged to alternate with second contraction slots to define a second contraction hole that is coaxial with the bore and is contractible in a radial direction, the second contraction hole receiving the second joint mouth to coaxially insert therein and couple thereto, wherein when the plug is moved to the first position, the bore releases the second pawls and compresses the first pawls to cause the first contraction hole to automatically and tightly clamp the first joint mouth in the radial direction with the air supply hole in communication with the first joint opening; and when the plug is moved to the second position, the bore releases the first pawls and compresses the second pawls to cause the second contraction hole to automatically and tightly clamp the second joint mouth in the radial direction with the air supply hole in communication with the second joint opening.
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
a first joint mouth, which comprises a first joint opening;
a second joint mouth, which comprises a second joint opening;
and a plug, which is movable in the bore in a limited manner in an axil direction between first and second positions, the plug comprising a plurality of first and second pawls, the first pawls being arranged to alternate with first contraction slots to define a first contraction hole that is coaxial with the bore and is contractible in a radial direction, the first contraction hole receiving the first joint mouth to coaxially insert therein and couple thereto, the second pawls being arranged to alternate with second contraction slots to define a second contraction hole that is coaxial with the bore and is contractible in a radial direction, the second contraction hole receiving the second joint mouth to coaxially insert therein and couple thereto, wherein when the plug is moved to the first position, the bore releases the second pawls and compresses the first pawls to cause the first contraction hole to automatically and tightly clamp the first joint mouth in the radial direction with the air supply hole in communication with the first joint opening; and when the plug is moved to the second position, the bore releases the first pawls and compresses the second pawls to cause the second contraction hole to automatically and tightly clamp the second joint mouth in the radial direction with the air supply hole in communication with the second joint opening.
2. The direct-pressing dual-opening automatic-switching pumping nozzle according to claim 1, wherein the main body comprises a first lodging section that is formed by recessing an end portion of a wall of the bore and also comprises second lodging section that is formed by recessing an opposite end portion of the wall of the bore;
and the plug has an outer circumference, which is provided with a first buckling section raised therefrom to be engageable with the first lodging section and is also provided with a second buckling section raised therefrom to be engageable with the second lodging section, wherein when the plug is moved to the first position, the first buckling section gets into mating engagement with the first lodging section and the second buckling section disengages from the second lodging section and when the plug is moved the second position, the second buckling section gest into mating engagement with the second lodging section and the first buckling section disengages from the first lodging section.
and the plug has an outer circumference, which is provided with a first buckling section raised therefrom to be engageable with the first lodging section and is also provided with a second buckling section raised therefrom to be engageable with the second lodging section, wherein when the plug is moved to the first position, the first buckling section gets into mating engagement with the first lodging section and the second buckling section disengages from the second lodging section and when the plug is moved the second position, the second buckling section gest into mating engagement with the second lodging section and the first buckling section disengages from the first lodging section.
3. The direct-pressing dual-opening automatic-switching pumping nozzle according to claim 2, wherein the plug has a length exceeding a length of the bore so that two ends of the plug projecting outside the bore, wherein when the plug is moved to the first position, one of the ends is set in a location that projects further outside the bore to release the engagement between the first buckling section and the first lodging section and when the plug is moved to the second position , the other one of the ends is set in a location that projects further outside the bore to release the engagement between the second buckling section and the second lodging section.
4. The direct-pressing dual-opening automatic-switching pumping nozzle according to claim 2, wherein the plurality of first pawls is arranged to alternate with the first contraction slots to show an annular form so that inner sides of the first pawls collectively define the first contraction hole and oppositely, outer sides of the first pawls each form a conic section for being radially pushed by the bore with the first buckling section being formed by being raised from the conic section; and the plurality of second pawls is arranged to alternate with the second contraction slots to show an annular form so that inner sides of the second pawls collectively define the second contraction hole and oppositely, outer sides of the second pawls each form a conic section for being radially pushed by the bore with the second buckling section being formed by being raised from the conic section.
5. The direct-pressing dual-opening automatic-switching pumping nozzle according to claim 1, 2, 3, or 4, wherein the first pawls each have an outer end forming a first stop section, the first stop section having an outer edge located outside the bore and defining a diameter that is greater than a diameter of the bore, an inner edge of the first stop section engaging a bottom end of the first joint mouth;
and the second pawls each have an outer end forming a second stop section, the second stop section having an outer edge located outside the bore and defining a diameter that is greater than the diameter of the bore, an inner edge of the second stop section engaging a top end of the second joint mouth.
and the second pawls each have an outer end forming a second stop section, the second stop section having an outer edge located outside the bore and defining a diameter that is greater than the diameter of the bore, an inner edge of the second stop section engaging a top end of the second joint mouth.
6. A single-opening pumping nozzle, comprising:
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
an annular first joint mouth, which comprises a first joint opening for receiving a valve stem to be inflated to insert therein and couple therewith, the first joint mouth being received in a plug; and a plug, which is received in the main body and is reciprocally movable in the bore of the main body in a limited manner in an axil direction between first and second positions, the plug having an end that forms a plurality of pawls and an opposite end that forms a closed press-down section, the plug having an interior in which a flow channel is formed and in communication with an outer circumferential surface, the pawls being arranged to alternate with contraction slots to show an annular form to define a contraction hole that is coaxial with the bore and is contractible in a radial direction.
a main body, which comprises a bore extending therethrough and an air supply hole extending from a portion between two ends of the bore;
an annular first joint mouth, which comprises a first joint opening for receiving a valve stem to be inflated to insert therein and couple therewith, the first joint mouth being received in a plug; and a plug, which is received in the main body and is reciprocally movable in the bore of the main body in a limited manner in an axil direction between first and second positions, the plug having an end that forms a plurality of pawls and an opposite end that forms a closed press-down section, the plug having an interior in which a flow channel is formed and in communication with an outer circumferential surface, the pawls being arranged to alternate with contraction slots to show an annular form to define a contraction hole that is coaxial with the bore and is contractible in a radial direction.
7. The single-opening pumping nozzle according to claim 6, wherein each of the pawls has a bottom end that forms a radially extending barb, the first joint mouth being supported and held by the barbs of the bottom ends of the pawls collectively.
8. The single-opening pumping nozzle according to claim 6, wherein each of the pawls has an outer surface that forms a radially expanded arc section.
9. The single-opening pumping nozzle according to claim 6, wherein the plug has an outer circumferential surface in which two circumferential grooves that are spaced from each other by a distance are formed, the circumferential grooves respectively receiving therein a first seal ring and a second seal ring, a portion between the circumferential grooves being recessed to form a channel, the channel comprising an air passageway formed therein to communicate with the flow channel of the interior, whereby when the plug is moved to a predetermined position, the channel is in communication with the air supply hole.
10. The single-opening pumping nozzle according to claim 6, wherein rigid pawls are arranged outside the pawls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2867769A CA2867769C (en) | 2014-10-15 | 2014-10-15 | Single-opening pumping nozzle and direct-pressing dual-opening automatic-switching pumping nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2867769A CA2867769C (en) | 2014-10-15 | 2014-10-15 | Single-opening pumping nozzle and direct-pressing dual-opening automatic-switching pumping nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2867769A1 true CA2867769A1 (en) | 2016-04-15 |
| CA2867769C CA2867769C (en) | 2017-03-07 |
Family
ID=55702206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2867769A Active CA2867769C (en) | 2014-10-15 | 2014-10-15 | Single-opening pumping nozzle and direct-pressing dual-opening automatic-switching pumping nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2867769C (en) |
-
2014
- 2014-10-15 CA CA2867769A patent/CA2867769C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2867769C (en) | 2017-03-07 |
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