Novel mixing chamber of detachable spraying gun

Abstract

The utility model discloses a novel detachable mixing chamber of a spray gun. The novel detachable mixing chamber comprises a main body shell, an inner cavity and a connecting gas circuit, the main body shell is used for supporting a mixing chamber element, and the main body shell is provided with a feeding hole, a front connecting pipe, an outer convex thread, an inner thread groove, a groove and a rubber sealing ring; the utility model relates to the technical field of spray gun mixing chambers, and has the following beneficial effects: a rubber sealing ring is designed at the lower end of the mixing chamber close to the tail part, and when the mixing chamber is matched with a spray gun main body, the sealing ring can seal the lower end of the mixing chamber and the spray gun main body; meanwhile, the front end of the mixing chamber is matched with the inner cavity of the spray gun through screw-thread fit, so that the upper end and the lower end of the mixing chamber can be matched with the spray gun body to complete sealing, the roughness requirement for manufacturing the mixing chamber shell can be lowered, and the manufacturing cost and difficulty are low.

Description

Technical Field

[0001] The utility model relates to the technical field of spray gun mixing chambers, and specifically relates to a detachable new mixing chamber for a spray gun. Background Art

[0002] The mixing chamber is an important component in a spray gun. It mainly completes the functions of sealing and raw material mixing.

[0003] Raw materials of two components enter the two-side feed ports of the mixing chamber through the spray gun main body respectively. The raw materials are mixed and stirred in the mixing chamber, and a foaming reaction occurs in a very short time. Under pressure, a fine mist-like fan-shaped spray is ejected from the outlet of the mixing chamber, and the foaming process is completed by contacting the working surface.

[0004] However, the interior of the traditional spray gun is fixedly installed with the mixing chamber. Therefore, when it is necessary to clean or repair the mixing chamber, it is often very inconvenient. But for the conventional split-type mixing chamber during installation, the sealing between the mixing chamber and the spray gun main body is completed by the outer conical surface of the mixing chamber and the inner conical hole conical surface of the spray gun main body. This requires extremely high requirements for the conical surface angle and surface roughness of the mixing chamber and the spray gun main body. Once the accuracy or tolerance of one part does not meet the requirements, the sealing effect cannot be achieved. Similarly, during the repair or replacement of the mixing chamber, the adaptability of the mixing chamber is extremely poor and the efficiency is low. Content of the Utility Model

[0005] To achieve the above objectives, the present utility model is realized through the following technical solutions: A new detachable mixing chamber for a spray gun includes a main body housing, an inner cavity, and a connecting gas path; the main body housing is used to support the mixing chamber components, and the main body housing is provided with: a feed port, a front connecting pipe, an outer protruding thread, an inner thread groove, a groove, and a rubber sealing ring.

[0006] The feed port is opened on both sides of the outside of the main body housing, the front connecting pipe is connected to the front end of the main body housing, the outer protruding thread is sleeved on the outer surfaces of the front connecting pipe and the connecting gas path, the inner thread groove is opened on the rear inner wall of the main body housing and the inner cavity wall surface, the groove is opened on the rear outer side of the main body housing, and the rubber sealing ring is sleeved into the groove.

[0007] Preferably, an opening is provided at the tail of the mixing chamber.

[0008] Preferably, the outer diameter of the rubber sealing ring is larger than the diameter of the main body housing.

[0009] Preferably, a sealing ring is provided inside the feed port.

[0010] Advantageous Effects

[0011] This new detachable mixing chamber for a spray gun has the following advantageous effects:

[0012] It designs a rubber sealing ring at the lower end of the mixing chamber near the tail. When the mixing chamber is fitted with the gun body, the sealing ring will be responsible for the sealing between the lower end of the mixing chamber and the gun body. At the same time, the front end of the mixing chamber is fitted with the inner cavity of the gun through thread fitting, so that both the upper and lower ends of the mixing chamber can be fitted with the gun body to complete the sealing, which can reduce the roughness requirements for manufacturing the mixing chamber shell, and the manufacturing cost and difficulty are relatively low. Brief Description of the Drawings

[0013] Figure 1-2 It is a three-dimensional external structure schematic diagram of a new mixing chamber of a detachable spray gun according to the present utility model.

[0014] Figure 3 It is an assembled and dispersed structure schematic diagram of a new mixing chamber of a detachable spray gun according to the present utility model.

[0015] Figure 4 It is a schematic diagram of the completed combined state structure of a new mixing chamber of a detachable spray gun according to the present utility model.

[0016] In the figure: 1, main body shell; 2, inner cavity; 3, connecting gas path; 4, feed port; 5, front connecting pipe; 6, external protruding thread; 7, internal thread groove; 8, groove; 9, rubber sealing ring; Detailed Description of the Preferred Embodiments

[0017] Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0018] Please refer to Figure 1-4 , the present utility model provides a technical solution.

[0019] A new mixing chamber of a detachable spray gun, comprising a main body shell 1, an inner cavity 2 and a connecting gas path 3; the main body shell 1 is used to support the mixing chamber components, and the main body shell 1 is provided with: a feed port 4, a front connecting pipe 5, an external protruding thread 6, an internal thread groove 7, a groove 8 and a rubber sealing ring 9;

[0020] The feed port 4 is opened on both sides of the outside of the main body shell 1, the front connecting pipe 5 is connected to the front end of the main body shell 1, the external protruding thread 6 is sleeved on the outer surfaces of the front connecting pipe 5 and the connecting gas path 3, the internal thread groove 7 is opened on the rear inner wall of the main body shell 1 and the wall surface of the inner cavity 2, the groove 8 is opened on the rear outside of the main body shell 1, and the rubber sealing ring 9 is sleeved into the groove 8.

[0021] It should be noted that when the mixing chamber is installed inside the spray gun, the front connecting tube 5 can be fitted into the internal thread groove 7 at the front end of the inner cavity 2 through the external protruding thread 6 on the front connecting tube 5, and then the rear of the main body shell 1 and the inner cavity 2 can be sealed through the rubber sealing ring 9, and then the assembly of the mixing chamber can be completed.

[0022] Preferably, further, an opening is provided at the rear of the mixing chamber.

[0023] It should be noted that the opening can be conveniently used to move the main housing 1 using a tool.

[0024] Preferably, further, the outer diameter of the rubber sealing ring 9 is greater than the diameter of the main housing 1 .

[0025] It should be noted that the outer diameter of the rubber sealing ring 9 is larger than the size of the main shell 1 to ensure that the rubber sealing ring 9 can be tightly attached to the wall surface of the inner cavity 2 .

[0026] Preferably, further, a sealing ring is provided in the feed port 4.

[0027] It should be noted that the sealing ring is used to prevent leakage when the raw materials are fed.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of detachable spray gun mixing chamber, comprising a main body housing, an inner cavity, and a connecting gas path; the main body housing is used to support the mixing chamber components, characterized in that , the main body housing is provided with: a feed inlet, a front connecting pipe, an external protruding thread, an internal thread groove, a groove and a rubber sealing ring; The feed inlet is opened on both sides of the outside of the main body housing. The front connecting pipe is connected to the front end of the main body housing. The external protruding thread is sleeved on the outer surfaces of the front connecting pipe and the connecting air path. The internal thread groove is opened on the rear inner wall and the inner cavity wall surface of the main body housing. The groove is opened on the rear outer side of the main body housing. The rubber sealing ring is sleeved into the groove.

2. The novel mixing chamber of a detachable spray gun according to claim 1, characterized in that, The tail of the mixing chamber is provided with an opening.

3. A detachable spray gun new mixing chamber according to claim 1, characterized in that The outer diameter of the rubber sealing ring is larger than the diameter of the main body housing.

4. A detachable spray gun new mixing chamber according to claim 1, characterized in that A sealing ring is provided in the feed inlet.

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