CN207278960U - A kind of flexible Non-return air valve - Google Patents

Abstract

The utility model discloses a kind of flexible Non-return air valve, the air valve includes valve body, spool, ventail, compression spring, gasket；Spool is installed on the central axes of valve cavity, compresses spring and ventail is sleeved on spool successively, is provided with compression spring in spool outer wall, gasket is installed on the bottom of spool.The flexible Non-return air valve sealing performance of the utility model is strong, and air inflow is big, automatically controls air-flow one-way flow.

Description

A kind of flexible Non-return air valve

Technical field

The utility model belongs to mechanical component technical field, and in particular to a kind of flexible Non-return air valve.

Background technology

At present, large-scale inflatable aircraft hangar, carbarn, worker-house and the storehouse of China production, its main feature is that can The good mobility strong of mobility, installation is built easy to field at any time.In military rescue and relief work, temporarily with storehouse etc. played compared with Big effect.But these aerated products all have the problem of identical, that is, pressurize molding time is shorter again, can not long-time service.Through examination The discouraged point of verification is concentrated mainly at charging valve.Also circulate on the market some valves at present, but these valves there is also Air inflow is low, poor sealing, the inferior position that is unable to control air-flow flowing etc. can not meet the inflation of large-scale inflatable structure and pressurize Performance requirement.It is current to be badly in need of solving the problems, such as that valve one-way flow and poor air-tightness.

Utility model patent notification number CN 202597808U disclose a kind of charge valve, it includes housing, is equipped with housing Cavity, sets first and second pipe fitting being connected with the supply air line of air accumulator and engine on housing, the cavity and the First, the tube chamber connection of two pipe fittings, the cavity is interior to set check valve, and the exhaust end of check valve is located in cavity, check valve Air inlet end is connected with the gas fill port that housing opens up.The gas charging valve structure is complicated.

Utility model content

In order to solve the problems, such as gas unidirectional flowing and valve air-tightness in the prior art, the utility model proposes one kind Flexible Non-return air valve, the air valve are made of valve body, spool, ventail, compression spring, gasket.

Spool is installed on the central axes of valve cavity, compresses spring and ventail is sleeved on spool successively from bottom to top On, ventail is equipped with the stomata easy to gas flowing, and gasket is installed on the bottom of spool；

Valve interior wall is machined with internal thread, is machined with external screw thread on the outside of ventail, ventail is tightened on valve interior wall, structure Into an entirety.

Slide is installed on valve interior wall, spool can on slide oriented sliding.

Further, spool bottom is equipped with a seal boss, and seal boss is pressed with gasket, play pressing sealing Effect.

Further, valve body, spool, ventail use ABS, PP, PVC or PC material machine-shaping.

Further, a circle seal boss is equipped with spool bottom, gasket is crushed under the seal boss.

Further, gasket is made of high elasticity silica glue material.

Air valve described in the utility model has following superior technology effect：

1. sealing performance is strong：The air valve only just makes spool and sealing without power supply by spring pressure and internal pressure Pad compresses, and ensure that strong sealing performance by spool bottom boss indentation sealing pad；

2. air inflow is big：The air valve air inlet diameter is big, and spool and valve interior wall spacing distance are big, are opened on ventail Gas port, ensure that big air inflow；

3. automatically control air-flow one-way flow：The air valve automatically opens up spool by blower pressure, automatically controls Air-flow one-way flow.

Brief description of the drawings

Fig. 1 is air valve overall structure diagram described in the utility model.

Reference numeral is as follows：

1- valve bodies, 2- spools, 3- ventails, 4- compression springs, 5- gaskets.

Embodiment

Below in conjunction with the accompanying drawings and specific embodiment, the utility model is further described.

As shown in Figure 1, the air valve compresses spring 4 by valve body 1, spool 2, ventail 3, gasket 5 is formed.

Spool 2 is installed on the central axes of 1 cavity of valve body, compresses spring 4 and ventail 3 is sleeved on valve successively from bottom to top On core 2, ventail 3 is equipped with the stomata (not shown) easy to gas flowing, and gasket 5 is installed on the bottom of spool 2；

1 inwall processing of valve body has internal thread (not shown), and the outside of ventail 3 is machined with external screw thread (not shown), thoroughly Gas piece 3 is tightened on 1 inner wall of valve body, forms an entirety.

Slide (not shown) is installed on 1 inner wall of valve body, spool 2 can on slide oriented sliding.

Further, 2 bottom of spool is equipped with a seal boss (not shown), and seal boss is pressed with gasket 5, played Press the effect of sealing.

Further, gasket 5 is made of high elasticity silica glue material.

The operation principle of air valve described in the utility model is as follows：

1 lower part of valve body connects wind turbine (not shown), and wind turbine starts then applies pressure to spool 2, when pressure is more than compression During the pressure of spring 4, then compression spring 4, spool 2 are raised above, and spool 2 is opened, and gas is filled with to utricule inside by ventail 3 Body；When wind turbine is closed, possess certain pressure and the pressure of spring itself due to being filled with air pressure inside utricule at this time so that Spool 2 move down and with gasket 5 combine closely and inside sealed bladder body, with have the function that seal pressurize.And gas is only It can be flowed into inside utricule and cannot unidirectionally be flowed with this to reach control air-flow by outwards being flowed by valve inside utricule by wind turbine It is dynamic.

The utility model is not limited to the above embodiment, in the case of without departing substantially from the utility model in essence content, this Any deformation, improvement, the replacement that field technology personnel are contemplated that each fall within the scope of protection of the utility model.

Claims (6)

1. a kind of flexible Non-return air valve, it is characterised in that the air valve includes valve body, spool, ventail, compression bullet Spring, gasket；Spool is installed on the central axes of valve cavity, compresses spring and ventail is sleeved on spool, on ventail Equipped with stomata, compression spring is installed in spool outer wall, gasket is installed on the bottom of spool.

2. flexible Non-return air valve according to claim 1, it is characterised in that valve interior wall is machined with internal thread, External screw thread is machined with the outside of ventail, ventail is tightened on valve interior wall.

3. flexible Non-return air valve according to claim 1, it is characterised in that valve inner is provided with spool in valve The slide of internal portion oriented sliding.

4. flexible Non-return air valve according to claim 1, it is characterised in that it is convex to be equipped with sealing in spool bottom Platform, gasket are pressed together under seal boss.

5. flexible Non-return air valve according to claim 1, it is characterised in that gasket uses high elasticity silica glue material Material makes.

6. flexible Non-return air valve according to claim 1, valve body, spool, ventail using ABS, PP, PVC or PC material machine-shapings.