CN2140974Y - Self-clamping gas-charging connection for tyre of vehicles - Google Patents

Abstract

The utility model relates to a self-clamping gas-charging connection for tyre of vehicles which comprises air ducts, hollow bolts, a housing, sealing rings, a collection chamber, one-way valves, and one-way valve springs. The one-way valve is positioned at the inside of a collection chamber, and the one-way valve springs are positioned at the inside of the one-way valve. The air ducts are tightly screwed with the internal screw-threads of the collection chamber, the sealing rings are positioned on the internal top part of the housing, and the hollow bolts are sheathed on the outside of the air ducts and matched with the internal screw-threads of the housing. The key point is that the sealing rings and the one-way valve are merged into the integration, and the automatic self-clamping and sealing are realized by that the collection chamber is pushed forward by pushing the hollow bolts, and the sealing rings are compressed. The utility model has the advantages of convenient operation, saving time, reduced labour intensity, and safe use.

Description

Self-clamping gas-charging connection for tyre of vehicles

The utility model--press from both sides formula automotive-type tyre inflation piecing devices certainly, belong to vehicle production, maintenance, maintenance apparatus technical field.

At present, widely used gas-charging connection device is ancient hand-operated or does not have gas-charging connection and adorn an air valve switch on tracheae in the society, tracheae is enclosed within the tyre inflation larynx chew the mode of inflating with the iron wire tighten.The shortcoming that they exist is: (1) automotive-type tire, be full of needs 15～20 minutes from empty tire, in the so long time, firmly be very arduous with hand, particularly unusual especially arduous and inconvenient in summer of weather sweltering heat, cold winter, rainy day etc., and by not pressing tightly, also easily cause gas leakage, waste pressurized air; (2) if be enclosed within the tyre inflation larynx with tracheae and chew, use the iron wire tighten, can feel more trouble of operation, very inconvenient, and same existence is tied up and is not tightly caused gas leakage, wastes compressed-air actuated problem; (3), when manufacturing automobile, many because of the wheel tyre quantity that will inflate, workload is big in automobile factory to two kinds of above-mentioned inflation modes, per often three people inflate for one group, wherein want a people to put wheel and measurement air pressure, a people prepares to adorn valve inside, and a people inflates, so operation irregularity anxiety, more inconvenient, and can be bad because of the wheel contingency steel ring snap ring card of new clothes, will pop, cause casualty accident, very dangerous.

The purpose of this utility model is exactly to waste pressurized air and uneasy congruent shortcoming greatly and easily in order to overcome troublesome poeration, inconvenience, the workload that existing automotive-type tyre inflation mode and gas-charging connection device exist, design a kind of simple in structure, easy and simple to handle, safe in utilization, do not waste pressurized air, the formula of folder certainly automotive-type tyre inflation piecing devices that cost is low.

The utility model is realized by following structure technology scheme: press from both sides formula automotive-type tyre inflation piecing devices structural representation certainly as shown in Figure 1, it is by air pipe 1, hollow bolt 2, housing 3, O-ring seal 4, one-way valve 5, collection chamber 6, check valve spring 7 is formed jointly, its locations of structures and interconnected relationship are: one-way valve 5 is positioned in the collection chamber 6, and the bar-like portion of one-way valve 5 is stretched out outside the aperture of collection chamber 6, check valve spring 7 is installed in the one-way valve 5, the internal thread of the helical thread portion of air pipe 1 and collection chamber 6 is tightened and is connected to form a firmware with glue sealing with tightening up, O-ring seal 4 is positioned over housing 3 inner tops, by air pipe 1, one-way valve 5, air guide chamber 6, the firmware that check valve spring 7 forms by above-mentioned annexation is placed in the housing 3 and with O-ring seal 4 and is contacted, hollow bolt 2 is enclosed within outside the air pipe 1 and with the screw-internal thread fit of housing 3 and is connected, its key is that O-ring seal and one-way valve are incorporated in one, and by advancing, tightening hollow bolt promotion collection chamber both clamps the O-ring seal compression with realization forward automatically, sealing again.

The utility model is compared following obvious advantage and effect with existing automotive-type tyre inflation chuck or other inflation mode: (1) is because special structure and the annexation thereof that the utility model had can make the utility model can clamp and can reach the purpose of sealing automatically when inflation.Do not choose like this and push down gas-charging connection and just can inflate, a people just can carry out the inflation of several wheel tyres simultaneously, and wheel adorns and need not drive down onboard just and can inflate, and is easy and simple to handle, saves time, laborsaving, increases work efficiency greatly; (2) the utility model is to back down and one-way valve itself is also opened inflated simultaneously by the valve inside of the one-way valve in the collection chamber with tire.Do not have external and internal pressure poor like this, promptly bleed pressure is the same with tyre inner pressure, so the tire dress can both be inflated onboard.After disengagement, valve inside and one-way valve are all closed gas circuit simultaneously, therefore, and good seal performance, air tight not only, unlikely waste pressurized air, and after inflation finished, this gas-charging connection device can be died automatically, safe in utilization, need not adorn the switch air valve in addition, aeration speed improves 20～30%; (3) this practical new structure simple, make easily, cost is low.

Figure of description is described as follows: Fig. 1 is for pressing from both sides formula automotive-type tyre inflation piecing devices structural representation certainly.Among the figure: 1 is that air pipe, 2 is that hollow bolt, 3 is that housing, 4 is that O-ring seal, 5 is that one-way valve, 6 is that collection chamber, 7 is a check valve spring.

The inventor has passed through development and the test of long period to the automobile tyre inflation piecing devices, has successfully implemented the utility model at last.Implementation step is as follows: (1) is by shown in Figure 1, material such as available metal, nylon rod goes out with the lathe car or but the way of recruitment mould goes out parts with the plastics casting, and when producing in batches, the way of casting is best way, merges system rubber seal cushion rubber 4 and check valve spring 7; (2) manufacturing and each parts of purchasing system are assembled, earlier one-way valve 5 is positioned over collection chamber 6 and makes the long bar-like portion of its 5mm stretch out the aperture of the 4mm diameter of collection chamber, put into check valve spring 7 then, again the helical thread portion of air pipe 1 is tightened mutually and drip to be gone up glue with the screw thread of collection chamber 6 and seal and fixedly connected; (3) O-ring seal 4 is positioned in the housing 3 and is advanced in the housing 3 top, the firmware that portion rapid (2) has been assembled injects in the housing 3 and with O-ring seal 4 and contacts again, at last hollow bolt 2 is enclosed within outside the air pipe 1 and with the internal thread of housing 3 and twists, promptly make the utility model.The inventor once went out other parts except that O-ring seal 4 and check valve spring 7 with nylon rod with the lathe car, and step is assembled into four samples as stated above.Test by tyre inflation group between Guangzhou Automobile Factory's chassis, effect is very good as a result.The using method of this gas-charging connection device is it to be plugged vehicle wheel nausea larynx chew, push a little with hand, the one-way valve 5 of gas-charging connection just can back down valve inside and open simultaneously one-way valve, then the hollow bolt clockwise direction being tightened (about an about circle) can loose one's grip, at this moment the gas-charging connection device gas larynx that is clamped in wheel tyre is automatically chewed and self-inflating, after inflation finishes, hollow bolt is unscrewed in the other direction and can be taken out.

Claims (1)

1, a kind of from pressing from both sides formula automotive-type tyre inflation piecing devices, it is characterized in that it is by air pipe, hollow bolt, housing, O-ring seal, one-way valve, collection chamber, check valve spring is formed jointly, its locations of structures and interconnected relationship are: one-way valve is positioned in the collection chamber, and the bar-like portion of one-way valve is stretched out outside the aperture of collection chamber, check valve spring is installed in the one-way valve, the helical thread portion of air pipe and the internal thread of collection chamber are tightened, and with glue sealing with tighten up and be connected to form a firmware, O-ring seal is positioned over the top in the housing, by air pipe, the air guide chamber, one-way valve, the firmware that check valve spring forms by above-mentioned annexation is positioned in the housing and with O-ring seal and contacts, it is outer and be connected with screw-internal thread fit in the housing that hollow bolt is enclosed within air pipe, its key is that O-ring seal and one-way valve are incorporated in one, and promotes collection chamber and forward the O-ring seal compression is not only clamped automatically but also seal realizing by advancing and tighten hollow bolt.

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