CN218875114U

CN218875114U - Sand blowing gun head with noise reduction structure

Info

Publication number: CN218875114U
Application number: CN202223183974.7U
Authority: CN
Inventors: 张振奇
Original assignee: Shanghai Liangshi Intelligent Technology Co ltd
Current assignee: Shanghai Liangshi Intelligent Technology Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-18
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a sand-blasting gun head that possesses amortization structure, include the shell that links to each other with the spray tube, the shell other end is provided with the muzzle joint, the inside buffer layer of having arranged in proper order of shell and logical chamber, lead to a plurality of punch combination that have and crisscross distribution on the chamber with the buffer layer constitutes jointly and hinders formula amortization mechanism. The porous structures formed by the first hole groups and the second hole groups with different hole depths are arranged in a staggered mode with the projection positions deviating by 30 degrees, and the porous structures are matched with the buffer layer to form a small resistive silencing structure to be integrated in the sand blasting gun head.

Description

Sand blowing gun head with noise reduction structure

Technical Field

The utility model relates to a container processing field, in particular to sand blowing gun head that possesses amortization structure.

Background

After the surface of the container is subjected to sand blasting treatment, high-pressure air is usually adopted for blowing so as to thoroughly remove residual abrasive materials and dust and ensure the cleanness of workpieces. The existing container surface operation procedures are all operated in an open manner in a workshop, and the noise in the workshop reaches more than 115 decibels due to the welding, sand blowing and sand blowing procedures. Especially, when workers operate the sand-blowing gun head at a short distance, the flowing sound of the high-pressure air causes great damage to the working environment and the physical and psychological health of the workers.

SUMMERY OF THE UTILITY MODEL

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

the sand blowing gun head with the noise reduction structure comprises a shell connected with a spray pipe, the other end of the shell is provided with a muzzle joint, and the sand blowing gun head is characterized in that,

the shell is internally and sequentially provided with a buffer layer and a through cavity, and the through cavity is provided with a plurality of hole groups which are distributed in a staggered manner and forms a resistance type silencing mechanism together with the buffer layer.

In a preferred embodiment of the present invention, the hole sets include a first hole set and a second hole set, and the first hole set and the second hole set are arranged in a staggered manner;

the first hole group comprises a plurality of first holes, the second hole group comprises a plurality of second holes, the equidistance is arranged between a plurality of first holes, the equidistance is arranged between a plurality of second holes, first hole with the second hole is non-overlapping on the plane projection position.

In a preferred embodiment of the present invention, the number of the first holes and the second holes is 6, and the projected position deviation angle between the first holes and the second holes is 30 °.

In a preferred embodiment of the present invention, the wall of the through cavity is made of martensitic high-carbon steel.

In a preferred embodiment of the present invention, the buffer layer is made of polyurethane.

In a preferred embodiment of the invention, the joint is peripherally arranged with threads.

In a preferred embodiment of the present invention, the joint is engaged with the through cavity by a spacer.

In a preferred embodiment of the present invention, a spout is disposed in the joint, and the spout is horn-shaped.

The beneficial effects of the utility model reside in that:

the utility model provides a sand blasting rifle head that possesses amortization structure is that the porous structure that first punch combination and second punch combination constitute that differs the hole depth is that projection position 30 skew modes are crisscross arranges, and the cooperation buffer layer constitutes miniaturized hindering nature's amortization structure integration in the sandblast rifle head.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a sectional view of the present invention.

Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1 of the present invention.

Fig. 3 is a cross-sectional view B-B of fig. 1 of the present invention.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the above description is for the convenience of description of the present invention and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood, however, that the present application may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. It is also to be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, like reference numbers indicate identical or functionally identical elements.

Referring to fig. 1, the sand-blowing lance head with a noise reduction structure mainly comprises: the connector 10, the shell 20, the through cavity 30 and the buffer layer 40. The buffer layer 40 is disposed within the housing 20, and a coaxial through cavity 30 is disposed within the buffer layer 40. During operation of the apparatus, a high-pressure gas stream passes through the through-chamber 30, so that the chamber wall 31 is made of heat-treated high-carbon steel. The cavity wall 31 is provided with a plurality of first hole sets 32 and second hole sets 33 which are arranged in a staggered manner.

With combined reference to fig. 2 and 3, the first set of holes 32 consists of 6 first holes, and the second set of holes 33 consists of 6 second holes, both arranged equidistantly around the center of the through cavity 30, the depth of the second holes being greater than the depth of the first holes 32 a. On the plane projection, all the first holes and the second holes are arranged in a staggered mode among the plurality of second holes at equal intervals, the first holes and the second holes are non-overlapped on the plane projection position, and deviation angles of 30 degrees are formed among the positions, so that the holes are distributed in a staggered mode, and high-frequency noise is reduced to a range insensitive to human ears. The staggered porous structure is matched with the buffer layer 40 to form a resistive silencing structure, so that the working noise of the spray gun is reduced. The buffer layer 40 is made of an attractive material, and is preferably made of polyurethane. The fitting 10 is fixed to one end of the housing 20 by press fitting, and the fitting 10 and the through cavity 30 are engaged by a spacer. Threads are further arranged on the periphery of the joint 10, so that the gun head can conveniently fix other components. The connection 10 has a nozzle 11, which nozzle 11 is flared in order to direct the gas flow in the through-chamber 30 out.

As used in this specification, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. The terms "comprising," "including," and "containing" when used in this specification specify the presence of stated features, but do not preclude the presence or addition of one or more other features. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element could be termed a second element without departing from the teachings of the present inventive concept.

Claims

1. The sand blowing gun head with the noise reduction structure comprises a shell connected with a spray pipe, the other end of the shell is provided with a muzzle joint, and the sand blowing gun head is characterized in that,

the inside buffer layer and leading to the chamber of having arranged in proper order of shell, lead to have and crisscross distribution and a plurality of punch combination that the depth differs on the chamber with the buffer layer constitutes jointly and hinders formula amortization mechanism.

2. The lance head of claim 1, wherein the orifice set comprises a first orifice set and a second orifice set, and the first orifice set and the second orifice set are staggered;

3. The lance head of claim 2, wherein the number of the first holes and the second holes is 6, and the deviation angle of the projection positions between the first holes and the second holes is 30 °.

4. The sand blowing lance head of claim 2, wherein the wall of the through cavity is made of martensitic high carbon steel.

5. The sand-blowing lance head with a sound attenuation structure of claim 3, wherein the buffer layer is made of polyurethane.

6. The lance head with a sound attenuating structure according to any one of claims 1 to 5, wherein the adapter is provided with threads on its outer circumference.

7. The lance head of claim 6, wherein the joint engages the through-bore via a spacer.

8. The sand blowing lance head with a sound attenuation structure of claim 7, wherein a spout is disposed within the joint, the spout being trumpet shaped.