CN210309791U

CN210309791U - Air tap

Info

Publication number: CN210309791U
Application number: CN201921149909.8U
Authority: CN
Inventors: 林奕佑
Original assignee: NS-LIN INDUSTRIAL CO LTD
Current assignee: NS-LIN INDUSTRIAL CO LTD
Priority date: 2018-09-21
Filing date: 2019-07-22
Publication date: 2020-04-14
Anticipated expiration: 2029-07-22
Also published as: TWM573700U

Abstract

An air tap is suitable for being installed on a wheel rim, the wheel rim comprises an inner ring wall and an outer ring wall which are spaced radially inwards and outwards, the outer ring wall is provided with a groove which is radially and concavely arranged on the outer peripheral side of the outer ring wall and is in an arc shape, the wheel rim is provided with an installation channel which radially penetrates through the outer ring wall and the inner ring wall and is communicated with the groove, the air tap comprises an air tap pipe and an elastic airtight piece, the air tap pipe comprises a shaft pipe part and a head part, the shaft pipe part is used for penetrating and inserting in the installation channel, the head part is fixedly connected to one end of the shaft pipe part and is positioned outside the outer ring wall, the air tap pipe is provided with an inflation hole which axially penetrates through the shaft pipe part and the head part, and the elastic airtight piece is detachably and airtightly sleeved outside the shaft pipe part and.

Description

Air tap

Technical Field

The utility model relates to an air cock especially relates to an install in air cock of bicycle rim.

Background

Referring to fig. 1, the conventional air faucet generally includes an air faucet tube 21 radially passing through an air faucet hole 11 of a rim 1, and an air faucet valve 22 threadedly mounted on the air faucet tube 21, the air faucet tube 21 has a head portion 211 for radially inwardly limiting and abutting against the outer peripheral surface of the rim 1 to seal an opening at one side of the air faucet hole 11, and an axle tube portion 212 radially inwardly protruding from the head portion 211 and passing through the rim 1, the head portion 211 is disposed at one end of the axle tube portion 212 by a rubber-filled molding method, and can be used for hermetically sealing the air faucet hole 11.

However, the air faucet manufactured in the rubber packing manner has high manufacturing cost, and once the rubber is aged, a general user cannot replace the rubber outside the head 211 by himself or herself, but only replace the whole air faucet tube 21, which causes inconvenience and waste. In addition, when the nozzle tube 21 is locked, the head 211 may be detached or damaged due to too large locking force.

Although some manufacturers have developed another air nozzle capable of replacing the rubber ring 213, as shown in the taiwan patent M555801 of fig. 2, since the air nozzle hole 11 of the rim 1 is an uneven curved hole, the air nozzle holes 11 of different rim 1 designs are different, and the situation that the rubber ring 213 is not completely contacted with the air nozzle hole 11 only by abutting the rubber ring 213 against the air nozzle hole 11 may occur, thereby resulting in poor air-tightness.

Disclosure of Invention

The object of the present invention is to provide an air faucet which can overcome at least one of the disadvantages of the background art.

The utility model discloses an air cock is suitable for and installs in the wheel rim, the wheel rim contains radial inside and outside spaced inner ring wall and outer rampart, outer rampart has radially and concavely locates the slot that its periphery side is the arcuation, the wheel rim is equipped with radially to run through outer rampart with inner ring wall and with the installation passageway of slot intercommunication.

The air tap comprises a nozzle tube and an elastic airtight piece. The air nozzle pipe comprises a shaft pipe part and a head part, wherein the shaft pipe part is used for penetrating and inserting into the installation channel, and the head part is fixedly connected to one end of the shaft pipe part and is positioned outside the outer ring wall. The air nozzle pipe is also provided with an inflation hole which penetrates through the shaft pipe part and the head part along the axial direction of the air nozzle pipe. The elastic airtight piece is detachably and airtightly sleeved outside the shaft tube part and can be used for radially inwards airtightly plugging one side of the mounting channel of the rim.

The utility model discloses an air cock, elasticity airtight piece have support lean on by spacing in the body section of head, certainly the coaxial outside protrusion of body section is kept away from head and external diameter taper and be used for airtight stopper dress to seal the section of contracting of footpath installation passageway one side, and certainly the section of extending of the coaxial outside extension of the end of contracting of footpath of section.

The utility model discloses an air cock, the head has the side plane, the connection that two radial intervals set up the end of spool portion is leaned on the face, and two connect in the side plane with the end leans on the face between the face to be connected.

The utility model discloses an air cock, each is connected the face can be used for and adjacent outer rampart cooperatees and defines and be used for supplying toward head direction elastic deformation the accommodation space of the local holding of body section.

The air cock of the utility model, each connecting surface is plane.

The air cock of the utility model, each connecting surface is an arc concave shape by the head is inwards sunken.

The air cock of the utility model, each connecting surface is an arc convex shape formed by the head protruding outwards.

The utility model discloses an air cock, the inflation hole has and is located head and section are polygonal section of changeing that drives.

The utility model discloses an air cock, axle pipe portion has and is located axle pipe portion adjacent to the one end of head and radial concave locate its outer peripheral face, and supply the inlay card annular of card location is inlayed to elasticity air tight ring cover.

The utility model discloses an air cock still contains adjustable ground swivel nut of moving and is in the outer nut of central siphon portion, cover are located the central siphon portion is outer and can be by the nut passes to lean on the inner peripheral surface of interior rampart and be used for airtight sealing the packing ring of the opposite side of erection channel, and airtight install in just can be driven in the central siphon portion and open and switch on the air cock valve of inflation hole.

The beneficial effects of the utility model reside in that: when the air tap is locked into the rim, the elastic airtight piece can be pressurized through the design of the head part, a better airtight effect is generated, the air tap can conform to various frame shapes with different arc-shaped grooves, the elastic airtight piece can be prevented from being separated from the shaft tube part, and a user can replace the elastic airtight piece by himself to keep the airtight effect through the design that the elastic airtight piece is detachably sleeved on the shaft tube part, and the whole set of air tap does not need to be replaced.

Drawings

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a sectional view illustrating a conventional air faucet mounted to a rim in use;

FIG. 2 is a sectional view illustrating a state of use in which an air faucet disclosed in patent document No. M555801 is mounted on the rim;

FIG. 3 is a perspective view of an embodiment of the air faucet of the present invention, with an air faucet valve, a gasket, and a nut omitted;

FIG. 4 is a cross-sectional side exploded view illustrating the embodiment mounted to a rim;

FIG. 5 is a fragmentary cross-sectional side view illustrating two connecting surfaces of other variations of the embodiment each being arcuate and convex;

FIG. 6 is a view similar to FIG. 5, showing two connecting surfaces of another variation of the embodiment, each having an arcuate concave shape;

figure 7 is a fragmentary cross-sectional side view of the embodiment illustrating a elastomeric air seal prior to compression deformation;

figure 8 is a view similar to figure 7 illustrating the elastomeric air seal in a compressed deformed condition; and

FIG. 9 is a fragmentary, partially sectional, side elevational view illustrating the use of a hex wrench to assist in securing a head.

Detailed Description

Referring to fig. 3 and 4, an embodiment of the air faucet of the present invention is suitable for being installed on a rim 9, the rim 9 includes an inner annular wall 91 and an outer annular wall 92 spaced radially inward and outward, the outer annular wall 92 has a groove 93 radially recessed on the outer peripheral side thereof and forming an arc shape, and the rim 9 is further provided with an installation channel 94 radially penetrating through the outer annular wall 92 and the inner annular wall 91 and communicating with the groove 93. The air faucet comprises an air faucet tube 3, an elastic airtight piece 4, a gasket 5, a screw cap 6, and an air faucet valve 7.

The air nozzle tube 3 includes a shaft tube portion 31 for inserting through the mounting channel 94, and a head portion 32 fixed to an end of the shaft tube portion 31. An annular embedding groove 311 is radially recessed in the outer peripheral surface of the end of the shaft tube portion 31 connected to the head portion 32. The head portion 32 has two side planes 321 radially spaced apart from each other, an end abutting surface 322 connected to the shaft tube portion 31, and two connecting surfaces 323 connected between the side planes 321 and the end abutting surface 322 and having a planar shape. It should be noted that the connecting surface 323 is not limited to be planar, and in another modification of the present embodiment, referring to fig. 5 and 6, the shape of the connecting surface 323 may be an arc concave shape that is inwardly recessed from the head portion 32 or an arc convex shape that is outwardly protruding from the head portion 32.

The air nozzle tube 3 further has an air filling hole 33 penetrating the shaft tube portion 31 and the head portion 32 in the axial direction thereof. The inflation hole 33 has a driving section 331 with a hexagonal cross section at the head 32.

The elastic airtight member 4 is made of elastic material such as rubber or silica gel, detachably sleeved and clamped in the clamping ring groove 311, and has a body section 41 axially abutted against and limited on the end abutting surface 322, a diameter reducing section 42 coaxially protruding outwards from the body section 41 and far away from the head 32 and having a gradually reduced outer diameter for airtight packing and sealing an opening at one side of the installation channel 94, and an extension section 43 coaxially extending outwards from the diameter reducing end of the diameter reducing section 42 in an equal outer diameter manner.

The washer 5 is disposed on the section of the shaft tube 31 exposed to the inner circumference of the rim 9. The nut 6 is movably threaded around the section of the shaft tube 31 exposed to the inner peripheral side of the rim 9 and pushes the gasket 5 against the inner peripheral surface of the inner annular wall 91, so as to hermetically close the other side opening of the mounting passage 94. The air valve 7 is airtightly installed in the shaft tube portion 31 and can be driven to open to communicate with the air charging hole 33, and the structure of the air valve 7 is not important in the present invention, so it is not described in detail herein.

Referring to fig. 7, 8 and 9, in the air faucet of the present invention, the shaft tube 31 of the air faucet tube 3 is inserted into the mounting channel 94 from the outer annular wall 92 to penetrate out of the inner annular wall 91, so that the head 32 is located outside the outer annular wall 92, and the extension section 43 of the elastic airtight member 4 is inserted into the mounting channel 94 along with the shaft tube 31 until the reduction section 42 is limited to abut against the outer annular wall 92, thereby sealing the opening of the mounting channel 94. At this time, each connecting surface 323 cooperates with the adjacent outer annular wall 92 to define a receiving space 30.

Then, the washer 5 is sleeved on the section of the shaft tube portion 31 penetrating through the inner annular wall 91, the nut 6 is screwed on the shaft tube portion 31, and the nut 6 is screwed and adjusted to push the washer 5 against the inner circumferential surface of the inner annular wall 91. During the turning of the nut 6, an internal hexagonal wrench 8 is inserted into the driving section 331 to fixedly limit the rotation of the head 32. It should be noted that the cross-sectional shape of the driving section 331 is not limited to a hexagon, and other polygons can be used to match with corresponding fixing devices to achieve the same effect.

When the nut 6 and the washer 5 start to be tightened to the rim 9, the head 32 is driven to move toward the outer annular wall 92, so as to force the reduced diameter section 42 of the elastic airtight member 4 to elastically deform and partially fill the installation channel 94 in an airtight manner, and the accommodation space 30 is utilized to accommodate the local part of the elastic airtight member 4 which is elastically pressed and deformed toward the head 32, so that the head 32 can further radially move the body section 41 inward, and thus the reduced diameter section 42 tightly abuts against the installation channel 94 in an airtight manner, and a part of the reduced diameter section 42 is tightly attached to the outer annular wall 92 adjacent to the periphery of the installation channel 94, so as to increase the airtight contact area between the elastic airtight member 4 and the outer annular wall 92. The gap between the extension 43 and the outer annular wall 92 can accommodate the elastic airtight piece 4 to the elastic deformation of the center of the rim 9, so as to avoid the problem that the elastic airtight piece 4 is stuck to the outer annular wall 92 due to aging and elasticity, which makes it difficult to disassemble the air faucet.

It should be noted that the structure of the head portion 32 is not limited to this embodiment, the head portion 32 may also have an annular side plane 321 and a connecting surface 323 extending from the side plane 321 to the end leaning surface 322 and tapering, so that the head portion 32 is in a conical column shape, the connecting surface 323 can still cooperate with the outer annular wall 92 to define the accommodating space 30, or the head portion 32 is in a cylindrical column shape without the tapering connecting surface 323, and the head portion 32 can also urge the elastic airtight member 4 when the nut 6 is tightened.

To sum up, the utility model discloses the efficiency of air cock lies in: the elastic airtight member 4 is detachably sleeved on the shaft tube portion 31, so that a user can easily replace the elastic airtight member 4 to maintain a good airtight effect, and in addition, through the structural design of the head portion 32 and the elastic airtight member 4, the airtight contact area is increased, a better airtight effect is achieved, the elastic airtight member 4 can be prevented from being separated from the shaft tube portion 31 due to extrusion, and the disassembly and the assembly are easier. Therefore, the purpose of the utility model can be achieved.

The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still within the scope of the present invention.

Claims

1. An air faucet is suitable for being installed on a wheel rim, the wheel rim comprises an inner annular wall and an outer annular wall which are spaced radially and internally, the outer annular wall is provided with a groove which is radially and concavely arranged on the outer peripheral side of the outer annular wall in an arc shape, the wheel rim is provided with an installation channel which radially penetrates through the outer annular wall and the inner annular wall and is communicated with the groove, the air faucet comprises an air faucet pipe, the air faucet pipe comprises an axle pipe part and a head part, the axle pipe part is inserted into the installation channel in a penetrating mode, the head part is fixedly connected to one end of the axle pipe part and is located outside the outer annular wall, and an inflation hole which axially penetrates through the axle pipe part and the head: the air tap further comprises an elastic airtight piece which is detachably sleeved outside the shaft pipe portion in an airtight mode, and the elastic airtight piece can be used for being radially inwards airtightly plugged to abut against one side of the mounting channel of the wheel rim.

2. The air faucet of claim 1, wherein: the elastic airtight piece is provided with a body section which is abutted against and limited on the head part, a diameter reducing section which protrudes from the body section coaxially and outwards to be far away from the head part and has gradually reduced outer diameter and is used for airtight packing and sealing one side of the installation channel, and an extending section which extends from the diameter reducing tail end of the diameter reducing section coaxially and outwards.

3. The air faucet of claim 2, characterized in that: the head part is provided with two side planes which are arranged at intervals in the radial direction, an end leaning surface which is connected with the shaft tube part, and two connecting surfaces which are connected between the side planes and the end leaning surface.

4. The air faucet of claim 3, characterized in that: each connecting surface can be used for being matched with the adjacent outer ring wall to define an accommodating space for accommodating the local body section which is elastically deformed towards the head direction.

5. The air faucet of claim 3, characterized in that: each connecting surface is planar.

6. The air faucet of claim 3, characterized in that: each connecting surface is in an arc concave shape which is inwards concave from the head part.

7. The air faucet of claim 3, characterized in that: each connecting surface is convex in shape of an arc protruding outward from the head.

8. The air faucet of claim 1, wherein: the inflation hole is provided with a driving section which is positioned at the head part and has a polygonal section.

9. The air faucet of claim 1, wherein: the shaft tube part is provided with an embedding ring groove which is positioned at one end of the shaft tube part adjacent to the head part, is radially and concavely arranged on the peripheral surface of the shaft tube part and is used for the ring of the elastic airtight piece to be embedded, clamped and positioned.

10. The air faucet of claim 1, wherein: the air faucet further comprises a nut which is movably screwed outside the shaft pipe portion in an adjustable mode, a gasket which is sleeved outside the shaft pipe portion and can be pushed by the nut to abut against the inner circumferential surface of the inner ring wall to seal the other side of the installation channel in an airtight mode, and an air faucet valve which is installed in the shaft pipe portion in an airtight mode and can be driven to open to conduct the inflation hole.