CN2195671Y

CN2195671Y - Improved air valve structure

Info

Publication number: CN2195671Y
Application number: CN 94217924
Authority: CN
Inventors: 黄正雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-04
Filing date: 1994-08-04
Publication date: 1995-04-26
Anticipated expiration: 2004-08-04

Abstract

The utility model relates to an air valve structure, which is mainly composed of a valve rod, a valve seat and a rubber pad. The bottom of the valve rod is provided with a plurality of air vents which can feed the gas of filled inflatable body to be filled in or escape and can avoid gas generating flow drag in an air valve. When the inflatable body is fully filled with air, the air valve can be locked immediately to prevent that the air in the gas escapes and the inflatable body can not be filled fully.

Description

Improved air valve structure

The utility model relates to a kind of air valve structure

Existing air valve, the air valve of inventor's design as shown in Figure 1, because vent is opened on the post jamb of valve rod, air is directly entered in the inflation body, and easily produce the turnover of scratching stream and influence air within valve seat in the groove, this structure must be opened an inner groovy and enters for air and inflate in the body, with regard to the processing of its mould within valve seat simultaneously, not only complex process, and cost increases.

The purpose of this utility model is to provide a kind of bottom at its valve seat to open several vents, and its air is directly entered in the inflation body by this air valve, need not to open an inner groovy within valve seat, to save the air valve of mould processing technology and expense.

The utility model is combined by valve rod, valve seat and rubber seal, it is characterized in that having several vents in the bottom surface of valve rod, this vent can make gas directly enter in the inflation body through valve body, and by the tight bolt-lock of valve rod and valve seat, prevents to inflate the interior air effusion of body.

Description of drawings

Fig. 1 is the sectional drawing of prior art

Fig. 2 is an exploded view of the present utility model

Fig. 3 is a sectional drawing of the present utility model

Accompanying drawing is described in conjunction with the embodiments

Among Fig. 2 and Fig. 3, screw thread 12 is arranged on the post jamb of valve rod 1, one flange 13 is arranged at the bottom of valve rod 1, have several vents 11 around the flange 13, one internal thread 21 is also arranged on the inwall of valve seat 2, on the internal thread 21 of this valve seat 2, make valve rod 1 and valve seat 2 can comply with its screw thread rotation activity that matches for screw thread 12 screw locks on valve rod 1 post jamb.Hole, one garden 23 is arranged at the bottom of valve seat 2, one packing ring 22 is arranged above it, when valve rod 1 is locked with valve seat 2, the flange 13 of valve rod 1 bottom can go deep in the hole, garden 23 of its valve seat 2 bottoms, both closely cooperate mutually, and the packing ring 22 of nationality valve seat 2 bottoms, can guarantee that preventing to enter the interior gas of inflation body overflows.

Because vent 11 is opened in the bottom of valve rod 1, when desire with gas when air valve pours in the inflation body, gas can directly enter by vent 11 and inflate in the body, scratches stream (Fig. 1) thereby can avoid gas to produce in the valve base inner wall groove.

In addition, can make valve rod 1 rotation easily for making things convenient for the user, add an embossing swivel nut 4 in valve rod 1 upper end, it is more easy to make when rotation valve rod 1, and embossing swivel nut 4 can be made different forms according to user's demand.

Claims

1, a kind of improved air valve structure is made up of valve rod, valve seat and rubber seal, it is characterized in that:

1. on the post jamb of valve rod (1) screw thread (12) is arranged, a flange (13) is arranged at the bottom, has several vents (11) on every side in base flange (13), in valve rod (1) upper end one embossing swivel nut (4) is arranged;

2. on the inwall of valve seat (2) screw thread (21) is arranged, hole, a garden (23) is arranged at the bottom, and a packing ring (22) is arranged above it;

3. rubber seal (3) is combined closely with air valve.

2, improved air valve structure according to claim 1 is characterized in that the screw thread of valve rod (1) post jamb can screw togather locking mutually with the screw thread of valve seat (2) inwall.

3, improved air valve structure according to claim 1, it is characterized in that when gas by the vent (11) of valve rod (1) bottom after the hole, garden (23) of valve seat (2) bottom is full of the inflation body, with its air valve locking, combined closely in the flange (13) of valve rod (1) bottom and the hole, garden (23) of valve seat (2).