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Spray gun

A technology of spray guns and air pressure chambers, which is applied to spray devices, single handheld devices, etc., and can solve problems such as low air pressure and long suction time

Pending Publication Date: 2021-09-14
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a spray gun to solve the problems of low air pressure in the air pressure chamber and long suction time of the spray gun in the prior art

Method used

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] Such as image 3 As shown, Embodiment 1 of the present invention provides a spray gun, and the spray gun includes a fuselage 10 and a fan module 20 . Wherein, the air pressure chamber 13 is accommodated in the fuselage 10 . The air pressure chamber 13 has an air inlet 11 and an air outlet. ...

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Abstract

The invention provides a spray gun. The spray gun comprises a machine body, an air pressure chamber and a fan module, wherein the air pressure chamber is provided with an air inlet and an air outlet; the fan module is accommodated in the air pressure chamber and provided with an air suction side, an exhaust side and an airflow channel; the air suction side is arranged close to the air inlet; the exhaust side is arranged close to the air outlet; the airflow channel allows air to flow from the air suction side to the exhaust side; the fan module comprises a fan and a motor; the fan is arranged close to the air suction side; the maximum inner diameter position, corresponding to the middle position of the airflow channel, of the air pressure chamber is A1; the maximum inner diameter position, between the exhaust side and the air outlet, of the air pressure chamber is A2; the longitudinal section position where the air outlet of the air pressure chamber is located is A3; and the inner diameter value of A1 is less than or equal to the inner diameter value of A2 and larger than the inner diameter value of A3. According to the technical scheme provided by the invention, the problems of low air pressure of the air pressure chamber and long air suction time of the spray gun in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of spray guns, in particular to a spray gun. Background technique [0002] Such as figure 1 and figure 2 As shown, the existing spray gun comprises a fuselage 1 ', a blower module, a shower head 3 ', a paint container box 4 ' and a grip 5 ', and the fuselage 1 ' has an air pressure chamber 13 ', and the air pressure chamber 13 ' Both ends have an air inlet 11' and an air outlet 12'. Such as figure 1 As shown, in the prior art, low-speed motors are mostly used in fan modules, and the rotating speed is lower than 60,000 rpm. In order to meet the performance requirements of the HVLP paint spray gun, the fan module adopts a centrifugal fan with a linear diameter greater than 80mm. Therefore, the radial dimension of the rear end of the air pressure chamber near the fan is large, and the radial dimension of the front part is small. [0003] With the development of high-speed motors, fan modules tend to deve...

Claims

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Application Information

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IPC IPC(8): B05B11/06B05B11/00
CPCB05B11/061B05B11/0005B05B7/2418F04D17/16
Inventor 孙益民钟红风张士松
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD