CN2169752Y - Air cock - Google Patents

Abstract

The utility model relates to an air cock of an inflator pump. A hole (7) which is communicated with a path of the inflator pump is arranged on an air cock casing (6). The utility model is characterized in that the front end of the air cock casing (6) is matched with a hollow cap nut (1), and the interior of the casing (6) is orderly provided with an air head (2), an air pin (3), a compression bar (4) and a hold-down mechanism (5), wherein, the inner hole of the air head (2) is a stepped hole. The air path can be formed by the compression bar (4), the air pin (3), the air head (2) and a hole (7), and the thimble part (8) of the air pin (3) can be extended into the inner hole of the air head (2). The air cock can be suitable for the requirement of different types of air pins. The use range of an ordinary inflator pump is expanded under the condition of unchanging basic structural members.

Description

Air cock

The utility model relates to a kind of valve of inflator pump, is applicable to the plunger of tyres of different types.

The inflator pump that tyre inflation such as existing bicycle, rickshaw are used can only be suitable for a kind of plunger of specification.The inflator pump of ordinary bicycle for example, inapplicable mountain bike, the bore of the plunger of two kinds of inner tubes of a tyre is different before and after its reason, moreover the plunger of the inner tube of a tyre of mountain bike and so on has air tube, and ordinary bicycle does not then have.Therefore, existing inflator pump can not be general, and key is the requirement that the structure of valve can not satisfy dissimilar plungers simultaneously.

The utility model is intended to change the structure of existing inflator pump valve, makes its requirement that is applicable to dissimilar plungers, thereby enlarges the using scope of inflator.

The technical solution of the utility model is the gas head that device has shoulder hole in the valve housing, make the plunger of the suitable two kinds of external diameters in aperture in two holes, place air tube in gas head back, air tube can put in the gas head, when the gentle head of air tube is used, just can satisfy the requirement of mountain bike and so on plunger, the front of valve cooperates hollow nut, the gas head is under a hold-down mechanism effect, withstand nut, reach sealing state, adopt this valve just can keep under the constant situation of inflator pump basic building block, enlarge the using scope of inflator pump, provide great convenience to the user.

Below in conjunction with embodiment and accompanying drawing thereof technology contents of the present utility model is further described.

Fig. 1 is a kind of embodiment's of the utility model a structural representation.Gas head when the figure shows this embodiment and being used in mountain bike and so on plunger, the location status of air tube.

Fig. 2 is the structural representation behind gas head among Fig. 1, the air tube evolution.This location status is used in ordinary bicycle and so on plunger.

Fig. 3 is a kind of embodiment of air tube among Fig. 1, and wherein Fig. 3 A is a plan view, and Fig. 3 B is the A-A sectional view of Fig. 3 A.

By Fig. 1, the hole (7) that communicates with the inflator pump gas circuit is arranged on the valve housing (6) of this inflator pump, the front end of valve housing (6) cooperates hollow nut (1), the endoporus that installs gas head (2), air tube (3), depression bar (4) and hold-down mechanism (5), gas head (2) in the housing (6) successively is that shoulder hole, depression bar (4), air tube (3), gas head (2) and hole (7) can form gas circuit, and the thimble (8) of air tube (3) can put in the endoporus of gas head (2).The specifications design that plunger is looked in the aperture in size two holes of the shoulder hole of gas head (2), the size of the thimble (8) of air tube (3) are also corresponding to the air tube size of plunger.The effect of depression bar (3) is that the impacting force with hold-down mechanism passes to gas head (2), be that depression bar (3) is under the effect of hold-down mechanism, press forward and push away gas head (2), under the situation of withstanding of the hollow nut of valve front end, make the plunger of valve and tire produce excellent sealing performance.In the present embodiment, the gas head is made of the elastic material of rubber and so on.Hold-down mechanism can be the mechanism of spring and so on, and present embodiment adopts cam mechanism, and this cam mechanism comprises cam (5) and handle (11), and cam (5) is fixed on the rear portion of valve by loose pin (10).Pull handle, cam rotation makes valve and plunger be in the excellent sealing state by depression bar compressing gas head.When the thimble of air tube (3) is in front position (shown in Figure 1), promptly be applicable to the plunger of band air tube, this moment, depression bar was oppressed the air tube body (9) of air tube (3) simultaneously, made thimble can hold out against the air tube of plunger.

Claims (2)

1, a kind of valve of inflator pump, the hole (7) that communicates with the inflator pump gas circuit is arranged on the valve housing (6), the front end that it is characterized in that valve housing (6) cooperates hollow nut (1), install gas head (2), air tube (3), depression bar (4) and hold-down mechanism (5) in the housing (6) successively, the endoporus of gas head (2) is a shoulder hole, depression bar (4), air tube (3), gas head (2) can form gas circuit with hole (7), and the thimble portion (8) of air tube (3) can put in the endoporus of gas head (2).

2, the valve of inflator pump according to claim 1 is characterized in that hold-down mechanism is a cam mechanism, and this cam mechanism comprises cam (5) and handle (11), and cam (5) is fixed on the rear portion of valve by loose pin (10).

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