Compressive sprayer

Abstract

A compressive sprayer comprises a barrel and a barrel cover. A safety valve device is arranged on the barrel cover, a connecting ring, a mounting ring and a handle screw clamping mechanism are arranged in the barrel cover, a sealing device is reserved between the connecting ring and an opening of the barrel, the connecting ring is connected with the opening of the barrel in a threaded manner, themounting ring is connected with an air cylinder, an air filling handle is arranged on an air filling bar in the barrel cover, a piston mounted below the air filling bar is matched with the air cylinder, a water suction pipe is mounted in a water suction pipe connector mounted on the barrel body, the handle screw clamping mechanism comprises a guide pipe arranged below a sink which is arranged in the barrel cover, a reinforcing plate is arranged outside the sink and the guide pipe, a spiral clamping groove is arranged on a sink wall, a stopper bar arranged at the lower end of the air filling handle is matched with the spiral clamping groove, the safety valve device comprises a mount arranged on the barrel cover, an inclined slide, a smooth slide and a groove are arranged on the mount, a valve hole is reserved in the mount, a slider arranged below a valve bonnet is matched with the inclined slide, a valve stem below the valve bonnet is provided with a seal ring in contact with an upper opening of the valve hole, a spring is arranged outside the valve stem, a snap ring is mounted in a snap groove arranged on the lower portion of the valve stem, and the snap ring is clamped into the snap groove to contact with the spring.

Description

technical field [0001] The present invention relates to nebulizers, and in particular to compression nebulizers. Background technique [0002] Commonly used sprayers can be divided into manual sprayers and motorized sprayers according to different power sources, and manual sprayers can be divided into non-inflatable liquid pump sprayers and pneumatic compression sprayers. The compression sprayer is a manual pump that injects air into the liquid barrel and accumulates pressure, which then leads to continuous spraying for a period of time. When the pressure in the spraying barrel decreases, the operator manipulates the manual pump again to pressurize. When the internal pressure of the liquid barrel is high, in order to allow the air pressure in the pump to fully enter the liquid barrel, the handle of the pump must be locked at its fully inserted position to prevent it from slipping. During storage and carrying, the handle of the pump must also be locked at its fully inserted p...

AI Technical Summary

Problems solved by technology

When carrying, lift the handle, the stop rod hangs on the lifting lug, and the liquid bucket can be lifted; when unscrewing the lid, make the stop rod of the handle withdraw from the lifting lug, rotate to the back side of the lifting lug, press the lifting lug, and drive the lid to rotate, Opening the lid, this knotting bucket is simple and convenient, but this structure is only suitable for the lid of the small mouth of the barrel, and the lifting lug of the opening is only connected to the lid on one side. When lifting, it must support the self-weight and rated The capacity of water is heavy, and when locking or unscrewing the lid, it has to bear the torque after the thread is locked. product appearance

When the operator does not spray after inflating for many times, the barrel may burst and other serious consequences may occur because the internal air pressure value exceeds the bearing capacity of the barrel, and after the spraying is completed, if the pressure is not fully released, the barrel cannot be opened directly Otherwise, it will cause pesticide spillage and affect personal safety. If the pressure is to be fully relieved, most of the existing technologies continue to spray to release the air pressure in the barrel, which is very troublesome and wasteful. Therefore, someone designed a safety valve. However, most of the existing safety valves have disadvantages such as relatively complicated structure and poor safety during use.

And most of the sealing devices between the barrel and the bung of the existing sprayer are formed with a sealing ring installation groove at the lower end of the bung, and a flat sealing ring with a lower end face is installed in the installation groove. , the sealing ring is in contact with the upper end surface of the mouth of the barrel to achieve a sealing effect, but this type of structure often has a large contact area between the sealing ring and the mouth of the barrel, and it is very difficult to lock or loosen the lid, and the effect is not good; The other is to install a sealing ring on the outer wall of the mouth of the barrel, and the sealing ring is in contact with the inner wall of the lid installation ring. The contact surface between the sealing ring and the lid of this structure is small, and the sealing effect is poor. The inner side of the mouth is made with a slope, and a sealing ring is installed at the corresponding position of the bung, and the sealing ring is used to seal with the conical surface of the bung mouth, but for blow-molded plastic liquid buckets, especially the plastic buckets that store pressure in the bucket, often After pressurization, the slight deformation and expansion of the mouth of the barrel makes the seal invalid

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