CN2695056Y - Anticountra flow ball needle - Google Patents

Abstract

The utility model discloses an anti-counter flow ball needle which is composed of a nut, a valve inside, a ball needle, etc. The utility model is characterized in that sealing compound is enwrapped outside a core head of the valve core, and an air chamber cavity is arranged outside the sealing compound; the fixed nut is in a bridle joint with the external diameter of a shell of the ball needle; the back end of the cavity of the ball needle is the ball needle which is connected with the shell as integrity by casting; the air-chamber cavity which is arranged between the ball needle and the sealing compound can play roles in buffering and storing air, and can also play an anti-counter-flow role. The utility model can be operated by one person only during inflation, and is appropriate for inflating balls.

Description

Regurgitation stream ball pin

Technical field

The utility model relates to the ball pin, particularly a kind of regurgitation stream ball pin.

Background technology

Existing ball stylus printer ball inflation is that a holding is held inflator for one and inflated by two people's operations, and circulation of vital energy in the wrong direction stream leaks and spills when inflating pause, and operation is painstaking, and effect is undesirable.

The purpose of this utility model is to provide a kind of valve inside to seal chewing-gum to air chamber cavity buffering air storage chamber is arranged between the ball pin, play that regurgitation stream uses simple in structure, make easy, laborsaving operation, be suitable for ball regurgitation stream ball pin of inflating.

Summary of the invention

Technical solution of the present utility model is such, comprises by nut, sealing compound, valve inside, ball pin.The valve inside external diameter is surrounded by the air valve seal chewing-gum, and the sealing compound outside is the air chamber cavity, and cavity is outward a ball pin shell, and the shell front end is the ball pin, and the outside of ball needle stand body case back segment has screw thread to be connected with nut.The rear end of valve inside with inflate that nozzle is corresponding inflates that ventilation is gone into and communicate through the venthole of core print endoporus and core print, the core print external diameter communicates to the elastic layer mouth gap between the sealing compound internal diameter and gives vent to anger, give vent to anger to the interior cavity gas chamber of ball pin shell, interior cavity gas chamber communicates with ball pin endoporus again, the ventilation of ball pin and ball inner chamber, ball pin shell is identical with bicycle tube valve external diameter, so that the cooperation inflator is inflated use, can use with the common inflator of making bicycle, enlarge applicability.Key point is made at ball syringe needle and the casting of ball pin shell consubstantiality, has the air chamber cavity to play the buffering air storage chamber between the core print outsourcing sealing compound of ball syringe needle and valve inside and uses.Another embodiment is that the ball pin reaches the effect of inflating of regurgitation stream to a hollow sebific duct is housed between the sealing compound as the buffering air storage chamber.

The utility model has the advantages that and improve common ball pin back flow of gas phenomenon, easy to operate, laborsaving, make simple material-saving, laborsaving, easy to operate, gas replenishment process can arbitrarily pause, the one man operation, when inflating to ball, the air-flow only import but no export.Ingenious utilization valve, sealing compound, sebific duct, the common ball pin of improvement air-flow adverse current phenomenon.

Description of drawings

It is such that structure of the present utility model constitutes:

Fig. 1 is that overall structure of the present utility model is installed sectional plan view;

Fig. 2 installs for overall structure of the present utility model and analyses and observe by A-A cutaway view among Fig. 1;

Fig. 3 is an overall structure outline drawing of the present utility model;

Fig. 4 is that a hollow sebific duct is as buffering gas dome main body view for another program ball pin shell of the present utility model.

Fig. 5 is a ball pin part schematic diagram of the present utility model.

Fig. 6 is the bicycle tube valve inside schematic diagram of pressing of the present utility model.

Fig. 7 is the bicycle tube valve inside nut schematic diagram of pressing of the present utility model.

Fig. 8 is a schematic diagram of pressing bicycle tube valve inside installation diagram of the present utility model.

Among Fig. 1-Fig. 8.Valve inside (1), nut (2), sealing compound (3), ball pin (4), air admission hole (5), venthole (6), nut (7), ball pin shell (8), cavity (9), sealing compound (10), valve core print (11), valve assembly (including sealing compound) (12), hollow sebific duct (13), steel ball pin (14), ball needle stand body case (15), syringe needle (16), inlet chamber (18), spacer (19), bayonet socket (20).

The specific embodiment

Most preferred embodiment of the present utility model is such.The main body schematic diagram of ball pin assembly such as Fig. 5-Fig. 8 is similar to ball pin, valve inside, the nut of bicycle tube, and nozzle gone into by inflator inflator brank and the tight nut of hook can be inflated.Whole the utility model is that ball syringe needle and pedestal shell are connected as one with reference to Fig. 1-Fig. 8, and the valve core print has air chamber gas storage to feed ball syringe needle endoporus to arriving ball pin inner chamber outward.Ball syringe needle (16) is made with the casting of shell (18) consubstantiality, is air chamber cavity (9) in the shell, and ball pin (16) is between the sealing compound (3) of the core print outsourcing of valve inside being air chamber cavity (9) conduct buffering air storage chamber.Shell (15) is identical with bicycle tube valve external diameter, inflate use so that cooperate inflator, ball syringe needle (16) is identical with existing syringe needle, shell (15) is a hollow cylinder bar, shell (15) inner chamber is cavity (9), cavity (9) communicates with syringe needle (16), and syringe needle (16) is made with the body disposable casting with shell (15).One one of shell (15) back segment has external screw thread and nut (2) internal thread to manufacture engagement, and end face contacts the inner face of valve inside, and spacer (19) one side a slice of valve inside (1) snaps in the bayonet socket (20) of ball needle stand body case.The leading section end face of the core print (11) of valve inside (1) is the blind hole stuffiness, has radially opened a venthole (6), has been inserted in sealing compound (3) on the external diameter of valve core print (11), and valve core print (11) is inflated the endoporus of inner chamber (18) and communicated with cavity (9).The back segment of valve inside (1) outward the section of appearing have screw thread to be used to install additional fixedly valve inside drops out to be unlikely to nut.The valve of inflator communicates with the inner chamber (18) of valve inside (1).Ball syringe needle (16) inserts the balloon inner chamber when inflating, the binding clip chucking nut (2) of inflator, valve is facing to inflating chamber (18), and gas goes out through valve core print (6) external diameter to the interlayer between the sealing compound (3) to stitch out air chamber inner chamber (9) from gas port (6), goes out to balloon to inflate to syringe needle (16) endoporus.Another embodiment, with reference to Fig. 4, valve assembly (12) contains sealing compound, use the similar valve cock that bicycle is inflated that is used for, steel ball pin (14) is with existing bike polo pin, hollow sebific duct is that the sebific duct of an energy gas storage can be used, characteristics be with this sebific duct (13) as the buffering air storage chamber, can play the effect of regurgitation stream when inflating.This is improved regurgitation stream ball pin.

The utility model utilizes the relation of pressure, pressure, lifting surface area, laborsaving, when gas is compressed into valve cock, because of the air admission hole area of valve cock seldom, so pressure is very big, the air valve seal chewing-gum is expanded, thereby gas is entered in the sebific duct, after gas enters sebific duct, because of gas less to the pressure of valve glue sealing compound, and the pressure in the lateral of valve glue just, valve glue can not expand, so gas can not instead flow out, uses and beats bicycle pump, the air inlet end of jaw snapping valve inside, the pulling inflator can be inflated.

Claims (2)

1, a kind of regurgitation stream ball pin, comprise by nut, sealing compound, valve inside, ball pin, it is characterized in that valve core print (11) external diameter is surrounded by sealing compound (3), sealing compound (3) is outer to be cavity (9), cavity (9) outside is a ball needle stand body case (15), and shell (15) front end is ball syringe needle (16), and the outside of ball needle stand body case (15) rear end is nut (2), core print (11) is entrapped in pedestal shell (15) inner chamber (9)

2, according to the described regurgitation of claim 1 stream ball pin, it is characterized in that the inlet chamber (18) of valve inside (1) communicates with venthole (6), venthole (6) communicates with cavity (9), and cavity (9) goes out through ball syringe needle (16) endoporus and communicates with the ball inner chamber.

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