CN2475590Y

CN2475590Y - Changing joint for tyre valve of bicycle

Info

Publication number: CN2475590Y
Application number: CN 01223426
Authority: CN
Inventors: 叶博铿
Original assignee: XINKEN INDUSTRY Co Ltd
Current assignee: XINKEN INDUSTRY Co Ltd
Priority date: 2001-05-11
Filing date: 2001-05-11
Publication date: 2002-02-06
Anticipated expiration: 2011-05-11

Abstract

Disclosed is a conversion joint for a bicycle air tap, the conversion joint consists of a sleeve head which can be used to combine with and coat on the air tap, one end of the sleeve head is convexly provided with a ring lip, and a seal ring which is arranged between the end margin of a conversion tube and the ring lip contact position, when the conversion joint is used to aerate a small diameter tire of a bicycle, the conversion joint can be sleeved on the air tap of the tire, and through the outward extension of the conversion tube of the conversion joint, the air output mouth of a hand air pump can be easily buckled up with the inlet pipe of the conversion joint to obtain the function of convenient aeration.

Description

Bicycle tire tube valve adapter substitute

The utility model relates to a kind of adapter substitute, particularly can reach the bicycle tire tube valve adapter substitute that makes things convenient for aeration in order to auxiliary bike tire than the steamboat footpath.

The tire of Regular Bicycle is when aeration, normally the gas transmission mouth by Floor Pump is docked on the tire tube valve of tire, so that air is imported in the tire, reach the effect of aeration, but for some bicycles of taking turns footpath bicycle of less (below 12 inches) such as children's ride-on, because the wheel of its wheel footpath is little, and support frame is thicker, add the tire tube valve tool certain altitude that is convexly set on the wheel, cause the space between tire tube valve and support frame narrow and small, make that the clip of Floor Pump is hindered when the clamping tire tube valve, and be difficult for clamping and positioning on tire tube valve, make that the gas transmission mouth is difficult for accurately docking with the tire tube valve of tire, cause in the aeration process, be easy to generate clip and come off, cause the gas transmission mouth of Floor Pump to break away from the phenomenon of the tire tube valve of tire, the personnel that cause need readjust the clip of snapping Floor Pump, and are so, quite inconvenient in the use.

The purpose of this utility model is to provide a kind of bicycle tire tube valve adapter substitute, makes it can be in order to auxiliary bike tire than the steamboat footpath, to reach the effect that makes things convenient for aeration.

In order to achieve the above object, the utility model bicycle tire tube valve adapter substitute, include one can in order to butt joint be sleeved on the tire tube valve pullover, one can and be arranged at transfer tube and pullover seal ring with the pullover transfer tube that engages, this overlaps first end and convexes with the ring lip, aforementioned seal ring promptly is arranged between transfer tube ora terminalis and pullover ring lipped joint synapsis, in addition, this transfer tube is the hollow form body, the one end engages with pullover ring lip, and another ora terminalis of this transfer tube and convex with a protruding wall.

Owing to adopt such scheme, so when the tire aeration of the steamboat footpath of bicycle, can utilize adapter substitute to be sheathed on the tire tube valve of tire, and borrow the transfer tube of adapter substitute to stretch out, and the gas transmission mouth that the makes Floor Pump air inlet pipe of snapping adapter substitute easily, to reach the effect of being convenient to aeration.

Below in conjunction with accompanying drawing and preferred embodiment the utility model is elaborated:

Fig. 1 is the schematic perspective view of the utility model one preferred embodiment;

Fig. 2 is the adapter substitute cutaway view of the utility model one preferred embodiment;

Fig. 3 is the cross-sectional schematic that adapter substitute of the present utility model is installed in the bicycle tire tube valve;

Fig. 4 is after aforementioned adapter substitute is installed in the bicycle tire tube valve, and the running condition when aeration is cutaway view partly.

As Fig. 1 and shown in Figure 2, the utility model adapter substitute 1 is installed on the tire tube valve 21 of cycle wheel 2, this adapter substitute 1 includes one can be sleeved on pullover 11 on the tire tube valve 21 in order to butt joint, one can with pullover 11 transfer tubes that engage 12, and be arranged at transfer tube 12 and pullover 11 seal ring 13, can give embossing on these pullover 11 outside wall surface handles, friction force when providing personnel's hand to grip, these pullover 11 1 ends convex with ring lip 111, ring lip 111 internal faces are provided with negative thread 112, and the 111 inner and pullover 11 junctions expansions of ring lip are provided with a bearing wall 113, are provided with for aforementioned seal ring 13.And this transfer tube 12 is the hollow form body, its inside is provided with an air passage 121, these air passage 121 two ends are open shape, and the relative external screw thread 122 that is provided with of abutting end of this transfer tube 12 and this ring lip 111, make pullover 11 ring lip 111 and transfer tube 12 can borrow each other yin, yang screw thread 112,122 to be screwed and winding is integral, another ora terminalis of this transfer tube 12 also convexes with a protruding wall 123.

Certainly aforementioned negative thread also can be located at the abutting end internal face of transfer tube and this ring lip in the utility model, and establishes external screw thread relatively in pullover ring lip outer peripheral edges, pullover ring lip and transfer tube is screwed and winding is integral by means of positive and negative screw thread each other.

As shown in Figure 3, the tire tube valve 21 of Regular Bicycle includes an interior mouth 211, that is convexly set on wheel 2 tires 22 and is sheathed on an interior mouth 211 collar 212 outward, an and spiral cover 213 that is sheathed on a mouth 211 in the collar 212 tops and the capping, wherein, should be provided with an air flue 214 in the interior mouth 211, the bottom end opening of this air flue 214 also is revealed on an interior mouth 211 ring walls, and the opening part corresponding to air flue 214 on these an interior mouth 211 ring walls is arranged with an air cushion 215, and this air cushion 215 is tightened under normal conditions on the ring wall of interior mouth 211.

Thereby when using adapter substitute 1 of the present utility model, only need pullover 11 of adapter substitute 1 is screwed onto on the interior mouth 211, the air flue 214 of a mouth 211 communicates with the air passage 121 of the transfer tube 12 of adapter substitute 1 in making, make tire tube valve 21 can borrow the setting of adapter substitute 1 and outwards extend axially protrusion, with clip 32 clampings and the aeration on the gas transmission mouth 31 of convenient Floor Pump, and not influenced by the obstruction of the skeleton of wheel 2.

As shown in Figure 4, when aeration, clip 32 on the gas transmission mouth 31 of Floor Pump can be interposed on the air inlet pipe 14, and the retaining system of borrowing protruding wall 142, and make gas transmission mouth 31 can aim at transfer tube 12 air passages 121 of snapping adapter substitute 1 easily, can carry out the effect of tire aeration, so, air is by gas transmission mouth 31 input transfer tubes 12 air passages 121 of Floor Pump, under the pushing of this air, can make the air cushion 215 outside dimplings on the mouth 211 in being strapped in, cause air cushion 215 and interior 211 in mouth to be provided with the slit, make the air in the air flue 214 to discharge by the bottom end opening of air flue 214, and then in the input tire 22.

So, adapter substitute of the present utility model is to be used for auxiliary steamboat bike tire's aeration directly of using as children, borrow the transfer tube of adapter substitute to stretch out, make the gas transmission mouth transfer tube of snapping adapter substitute easily of Floor Pump, to reach the effect that makes things convenient for aeration, and can improve steamboat bike tire directly really when aeration, can be limited because of being subject to the wheel skeleton for movable space, so that the gas transmission mouth that produces Floor Pump is difficult for butting up against on the tire tube valve of tire, and the gas transmission mouth obscission etc. that in the aeration process, is easy to generate Floor Pump shortcoming in the past.

Claims

1, a kind of bicycle tire tube valve adapter substitute, it is characterized in that: this adapter substitute includes:

One is pullover, can be sleeved on the tire tube valve in order to butt joint, and one end and convex with the ring lip;

One transfer tube is the hollow form body, and the one end engages with pullover ring lip, and another ora terminalis of this transfer tube and convex with a protruding wall; And

One seal ring is arranged between transfer tube ora terminalis and pullover ring lipped joint synapsis.

2, according to the described bicycle tire tube valve of claim 1 adapter substitute, it is characterized in that: be provided with negative thread in this pullover ring lip, the then relative external screw thread that is provided with of abutting end of this transfer tube and this ring lip makes pullover ring lip and transfer tube can borrow each other the yin, yang screw thread to be screwed and winding is integral.

3, according to the described bicycle tire tube valve of claim 1 adapter substitute, it is characterized in that: these pullover ring lip outer peripheral edges are provided with external screw thread, the then relative negative thread that is provided with of abutting end internal face of this transfer tube and this ring lip makes pullover ring lip and transfer tube can borrow each other the positive and negative screw thread to be screwed and winding is integral.