CN2168092Y - Sealed inflater - Google Patents

Abstract

The utility model relates to a late-model sealed inflator which can be widely used for inflating a bicycle and other applying occasions which need inflators. The aim of the utility model is to design a safe and reliable sealed inflator. The utility model is characterized in that the sealed inflator is provided with a piston provided with two steps. The step at the end surface of the piston is drilled with a through hole along the annular periphery. The sealing effect is good. The piston is firm, durable, safe and reliable.

Description

Sealed inflater

A kind of novel sealed gas-filling tube can be widely used in that bicycle is inflated and other needs the application of gas injection equipment.

Present various gas injection tubes, no matter manually or pin step on, its vent plug is a rubber cup, and is easily dry and cracked, shrink, and causes gas injection to leak, and uses and inconvenient.

The goal of the invention of model utility is a kind of safe, reliable, simple in structure for designing, low-cost sealed gas-filling tube.

The utility model sealed gas-filling tube, it by as shown in Figure 1 handle (1), connecting rod (2), inflator (3), air pipe (4), connect that parts such as chewing (5) constitutes, its major character is to have the cylindrical piston (6) that is connected to following two features with connecting rod (2) with screw thread: a. has two steps, b. be drilled with through hole (7) in end face step upper edge annular, the diameter in hole is relevant with the number in hole, in general, number for a long time, diameter can be smaller, consistent according to the gas-storing capacity of inflator, boring is 5 among Fig. 1, and diameter is 3mm.Will be with rubber ring (8) in the circular groove between two steps of piston (6), piston (6) is the manufacturings of bakelite or duroplasts.When using the inflation of this inflator, handle (1) is mentioned connecting rod (2) and piston (6), outer gas stream from the hole (7) pass, enter inflator (3), make inflator gas storage, when with handle (1) when depressing, air in the inflator (3) begins along the hole (7) and extrudes and make rubber (8) rising, rubber ring this moment (8) is sealed inflator (3) fully, and the air in the inflator (3) can not be arranged in atmosphere, can only be pressed in the gas equipment along air pipe (4).

More than Xu Shu content also is a most preferred embodiment of the present utility model.

The utility model good sealing effect, piston is sturdy and durable, is difficult for wearing out safety, reliable.

Fig. 1 is gas injection barrel structure figure.

Claims (3)

1, a kind of novel sealed gas-filling tube, it by handle (1), connecting rod (2), inflator (3), air pipe (4), connect part such as mouth (5) and constitute, it is characterized in that: have the cylindrical piston (6) that joins with screw thread with connecting rod bar (2) and following two features are arranged:

A., two steps are arranged

B. be drilled with through hole (7) in end face step upper edge annular.

2, sealed gas-filling tube according to claim 1 is characterized in that: be with rubber ring (8) in the circular groove between two steps of piston (6).

3, sealed gas-filling tube according to claim 1 and 2 is characterized in that: to be that electricity consumption is wooden do piston (6).