CN2428330Y

CN2428330Y - General joint for inflating tyre

Info

Publication number: CN2428330Y
Application number: CN 00241935
Authority: CN
Inventors: 丰庭栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-01
Filing date: 2000-07-01
Publication date: 2001-05-02
Anticipated expiration: 2010-07-01

Abstract

The utility model relates to a joint matched with a pneumatic tyre valve, comprising a center through pipe, a guiding nut, a one-way valve, a swinging ring, a sealing ring, an Elastic clamp and a pressing hoop. The guiding nut which is screwed on the screw thread of the center through pipe forms two circular grooves with the top end of the center through pipe, and the elastic clamp, the swinging ring and the center through pipe are connected into integration. The problems of needing to change or add interfaces, many interfaces, poor position and easy leakage can be solved at the process of inflating tyres with different valves. The utility model has the advantages of simple structure, reliable connection and convenient operation, being suitable for various pneumatic tyres.

Description

The inflation of tire universal joint

The utility model relates to a kind of joint that matches with the air-inflation tyre air valve and use.

At present, the charge valve on the tire exists with two kinds of forms, i.e. needle valve: as shown in Figure 5, be used for bicycle tube mostly; With press the valve formula: as shown in Figure 6, be used for the motor bike automobile inner tube more.The commercially available gas-charging connection that is used with it can only adapt to wherein a kind of air valve respectively, can not use mutually.Therefore when different kinds of tyre is inflated, must change or other joint of adjunction, give and operate and deposit and make troubles.And the number of ports purpose increases and makes stable leak tightness reduce, and inflating often has the phenomenon of gas leakage to occur in the process.In addition, the equipment of inflating that does not install check valve additional is when pressing valve formula inflation of tire, has the return-air phenomenon to reduce to inflate effectiveness efficient.

The purpose of this utility model provides a kind of gas-charging connection, and it not only can be used for various inflation of tires.Can accurately must locate simultaneously, must avoid the return-air gas leak phenomenon to take place as far as possible.

The utility model is achieved through the following technical solutions: the inflation of tire universal joint.It comprises: center siphunculus, guiding mother, check valve, swing circle, seal ring, elastic clip, compaction hoop are formed.Guiding is female to be spun on the screw thread of center siphunculus and to have formed the twice cannelure with siphunculus top, center, and elastic clip, swing circle are connected as a body with the center siphunculus.

In the siphunculus of center check valve is housed.

Below in conjunction with drawings and the specific embodiments the utility model is described in further detail:

Fig. 1 the utility model inflation of tire universal joint 1/4 cutaway view

Fig. 2 center siphunculus A-A section-drawing

Fig. 3 center siphunculus B is to partial enlarged drawing

Fig. 4 female oad scheme drawing that leads

Fig. 5 needle valve interface oad scheme drawing

Fig. 6 presses valve formula interface oad scheme drawing

As shown in Figure 1, the utility model, 4 swing circles female by: 1 center siphunculus, 2 elastic clip, 3 guiding, 5 check valves, 6 seal rings, 7 compaction hoops are formed; Other 8 link to each other with the equipment of inflating for the ventilation flue.

Can find out among Fig. 1 check valve 5 is housed in the center siphunculus 1, prevent when the tire internal gas pressure is higher than supply air pressure the refluence of high pressure gas.

Swing circle 4 is enclosed within on the breach of center siphunculus can not rotate (see figure 2), and the stupefied shape in swing circle lower end is matched with the groove of elastic clip 2 connecting places, has determined can have between them trace to swing.In actual gas replenishment process, play equilibrium activity, reduced gas leak phenomenon.

As shown in Figure 6,9 dustproof emit, 10 spools, 11 valve bodies, 12 location are female; B represents the size of bore in the valve, and c represents the size of spool off position, and d represents the size of spool unlatching final position.

As shown in Figure 5,13 needles, 14 crimps, 15 valve seats; A represents the size of needle external diameter.

Above size matches with size b ＇ c ＇ a ＇ among Fig. 4.Should satisfy: b is slightly larger than b ＇; C ＇ greater than c less than c+d; A ＇ is slightly larger than the relation of a.Because dimensional restriction makes accurate positioning.

Figure 3 shows that siphunculus end, center, have notch above as can be seen.Purpose is: when the center siphunculus backs down the inflation of 10 pairs of pressure valves of spool formula interface, play the air guide effect.

As shown in Figure 1, the notch on the elastic clip 2 is vertical and clamp is arranged, and is provided with gripping pattern.Principle of work in order to block the cylinder of valve body 11, simplifies the operation for strengthening connection reliability as climbing equipment, and the user can utilize the rib-loop on the valve body 11 to install location female (as Fig. 6) voluntarily additional.

Be preferred embodiment of the present utility model in sum, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.

Claims

1, inflation of tire general purpose interface, mainly form by center siphunculus, elastic clip, swing circle, check valve, guiding mother, seal ring, compaction hoop, it is characterized in that: guiding is female to be spun on the screw thread of center siphunculus and to have formed the twice cannelure with siphunculus top, center, and elastic clip, swing circle are connected as a body with the center siphunculus.

2, inflation of tire general purpose interface as claimed in claim 1 is characterized in that: be provided with check valve in the siphunculus pipe of center, the front end air guide mouth of pipe has sulculus.

3, inflation of tire general purpose interface as claimed in claim 1 is characterized in that: have the notch perpendicular with clamp on the elastic clip, there is gripping pattern the notch both sides.

4, inflation of tire general purpose interface as claimed in claim 1, it is characterized in that: the elastic clip interface is provided with concave groove.

5, inflation of tire general purpose interface as claimed in claim 1 is characterized in that: match with above-mentioned concave groove, swing circle lower surface also is provided with stupefied shape bar.

6, inflation of tire general purpose interface as claimed in claim 1 is characterized in that: two seal rings are housed in female cannelure that leads.