CN2776725Y

CN2776725Y - Connecting tool for tyre inflation

Info

Publication number: CN2776725Y
Application number: CN 200420099188
Authority: CN
Inventors: 李文锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-21
Filing date: 2004-12-21
Publication date: 2006-05-03
Anticipated expiration: 2014-12-21

Abstract

The utility model relates to a connecting tool for tyre inflation. The utility model has the technical scheme that an air valve core key is arranged, wherein a high pressure air pipe is arranged. The inner side in the front end of the high pressure air pipe is provided with screw threads matched with an air nozzle, and the back parts of the screw threads are provided with a round table. The back part of the high pressure air pipe is provided with an air inlet joint, and the screw threads on the back end of the high pressure air pipe are connected with a sealing screw. The middle part of the sealing screw is provided with a hole. The inside of the high pressure air pipe is provided with a key rod of an air valve core, and the front end of the key rod is provided with a key of the air valve core. The back part of the key rod is provided with a sealing block, and the back part of the key rod passes through from the hole on the sealing screw. The key rod behind the sealing block is provided with a section of screw threads, and the back part of the key rod is provided with a rotary knob connected with the screw threads. The front end of the key rod is provided with a positioning block, and the positioning block is provided with a ventilating gap. The utility model has the advantage of convenient use, and one person can complete the installation of the air valve core and the air inflating work. Simultaneously, an injury accident caused by the air leakage during installation can be avoided. The safety is good, and the electric power can be saved. The utility model can be preferably used in winter.

Description

The inflation of tire fastening means

One, technical field: the utility model relates to a kind of lock, particularly a kind of inflation of tire fastening means.

Two, background technology: at present, all in the wheel steel ring, working space is less for the charging connector of truck tyre, when inflation reaches standard, when using the valve inside key that valve inside is installed, operate extremely inconvenient, because valve inside is less, the high pressure draft pressure of valve is big, accidentally, valve inside can be blown to fly, sometimes even casualty accident can take place, on the other hand, because the set-up time is longer, cause air pressure to run off, waste electric power.

Three, summary of the invention: the utility model is exactly at the problems referred to above, and a kind of inflation of tire fastening means is provided.

Its technical scheme is: comprise the valve inside key, wherein, also has a high-pressure air pipe, there is the screw thread that matches with valve the front end inboard of high-pressure air pipe, there is a round platform at the rear portion of screw thread, there is an inlet suction port at the rear portion of high-pressure air pipe, the rear end of the high-pressure air pipe sealed screw that the middle part is porose that is threaded, a valve inside key bar is arranged in the high-pressure air pipe, the front end of key bar is the valve inside key, the sealing shelves in the rear portion of key bar, the key bar rear portion is passed by the hole on the sealed screw, on the key bar of sealing shelves back one section screw thread is arranged, and there are one and aforementioned threads bonded assembly knob in the key bar rear portion, front end at key bar has a positioning, and the ventilation gap is arranged on the positioning.

The beneficial effects of the utility model are: easy to use, a people just can finish valve inside and install and inflation work, simultaneously, the casualty accident that the gas leak in the time of can preventing to install causes, simultaneously safe and reliable, but conservation of power is used to have more preceence in the winter time.

Four, description of drawings:

Accompanying drawing is a structural representation of the present utility model;

Five, the specific embodiment:

With reference to accompanying drawing, the utility model will be further described:

Comprise a valve inside key, also has a high-pressure air pipe 2, there is the screw thread that matches with valve the front end inboard of high-pressure air pipe, there is a round platform 1 at the rear portion of screw thread, there is an inlet suction port 6 at the rear portion of high-pressure air pipe, the rear end of the high-pressure air pipe sealed screw 8 that the middle part is porose that is threaded, a valve inside key bar 4 is arranged in the high-pressure air pipe, the front end of key bar is a valve inside key 3, the sealing shelves 7 in the rear portion of key bar, the key bar rear portion is passed by the hole on the sealed screw, on the key bar of sealing shelves back one section screw thread is arranged, the key bar rear portion have one with aforementioned threads bonded assembly knob 9, at the front end of key bar a positioning is arranged, the ventilation gap is arranged on the positioning.

Wherein, screw thread is made in its outside of intake interface, connects a connector 5 with movable connection structure.

In addition, high-pressure air pipe is made by steel pipe, 12 millimeters of internal diameters, and 14 millimeters of external diameters, 180 millimeters of length, key bar are irony, 4 millimeters of diameters, long 400 millimeters, knob is made the wheel plate-like.

Its working process is as follows: valve inside is fixed on valve inside on the key by after taking off on the valve, the high-pressure air pipe front end is threaded with cranked tire valve, gas piping is connected with inlet suction port, rotary knob, the sealing shelves at key bar rear portion and sealed screw are with the back-end sealing of high-pressure air pipe, high pressure gas are via in the high-pressure air pipe input tire, after inflation reaches standard, close air pump, the contrarotation knob, key bar can move in high-pressure air pipe and rotate, forward the key bar, valve inside just can be installed in the negative thread of valve, till with the valve sealing.

Claims

1, a kind of inflation of tire fastening means, comprise the valve inside key, it is characterized in that: also have a high-pressure air pipe (2), there is the screw thread that matches with valve the front end inboard of high-pressure air pipe, there is a round platform (1) at the rear portion of screw thread, there is an inlet suction port (6) at the rear portion of high-pressure air pipe, the rear end of the high-pressure air pipe sealed screw (8) that the middle part is porose that is threaded, a valve inside key bar (4) is arranged in the high-pressure air pipe, the front end of key bar is valve inside key (3), the sealing shelves in the rear portion of key bar (7), the key bar rear portion is passed by the hole on the sealed screw, on the key bar of sealing shelves back one section screw thread is arranged, and there are one and aforementioned threads bonded assembly knob (9) in the key bar rear portion, front end at key bar has a positioning, and the ventilation gap is arranged on the positioning.

2, inflation of tire fastening means according to claim 1 is characterized in that: screw thread is made in its outside of described intake interface, connects a connector (5) with movable connection structure.