Single-point atmosphere plasma cleaning machine

Abstract

The utility model discloses a single-point type atmosphere plasma cleaning machine which comprises an air inlet sleeve and an ionization sleeve, the air inlet sleeve is connected with the ionization sleeve, a spray head is arranged at one end, away from the air inlet sleeve, of the ionization sleeve, and the spray head is detachably connected with the ionization sleeve. And the diameter of the ionization sleeve is smaller than that of the air inlet sleeve. And the diameter of the ionization sleeve is smaller than that of the air inlet sleeve, so that the ionization sleeve can conveniently extend into a gap of an irregular object to clean the gap. And the spray head is detachably connected with the ionization sleeve, so that the spray head is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma cleaning, in particular to a single-point atmospheric plasma cleaner. Background Technique

[0002] A plasma cleaner, also known as a plasma surface treatment instrument, is a brand-new high-tech technology that uses plasma to achieve effects that cannot be achieved by conventional cleaning methods. Plasma is a state of matter, also called the fourth state of matter, and does not belong to the common three states of solid, liquid, and gas. Applying sufficient energy to a gas to ionize it makes it into a plasma state. The "active" components of plasma include: ions, electrons, atoms, active groups, excited nuclides (metastable states), photons, etc. The plasma cleaner processes the surface of the sample by utilizing the properties of these active components, thereby achieving purposes such as cleaning and coating. The patent with the application number 202120918201.5 discloses a cyclone-type plasma cleaning structure, in which the diameters of the intake sleeve and the ionization sleeve are the same, and it cannot extend into the gaps of irregular objects for cleaning the gaps. Content of the Utility Model

[0003] To overcome the above-mentioned drawbacks, the purpose of the utility model is to provide a single-point atmospheric plasma cleaner that can extend into the gaps of irregular objects for cleaning the gaps.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a single-point atmospheric plasma cleaner, including an intake sleeve and an ionization sleeve, the intake sleeve and the ionization sleeve are connected, and a nozzle is provided at one end of the ionization sleeve away from the intake sleeve. The nozzle and the ionization sleeve are detachably connected, and the diameter of the ionization sleeve is smaller than the diameter of the intake sleeve. By setting the diameter of the ionization sleeve to be smaller than the diameter of the intake sleeve, the diameter of the ionization sleeve is smaller, which is convenient for the ionization sleeve to extend into the gaps of irregular objects for cleaning the gaps. By the detachable connection between the nozzle and the ionization sleeve, it is convenient to replace the nozzle.

[0005] Further, the diameter of the nozzle is smaller than the diameter of the ionization sleeve. By setting the diameter of the nozzle to be smaller than the diameter of the ionization sleeve, the diameter of the nozzle is further reduced, which is further beneficial for extending into the gaps of irregular objects for cleaning the gaps.

[0006] Further, an external thread is provided on the outer side surface of the ionization sleeve, and an annular protrusion is provided on the side of the nozzle close to the ionization sleeve. The annular protrusion is provided with an internal thread, and the nozzle and the ionization sleeve are threadedly connected through the internal thread and the external thread.

[0007] Further, a main shaft is disposed inside the intake sleeve. An axial cavity is provided inside the main shaft. An electrode fixing seat is disposed in the axial cavity, and the main shaft can fix and support the electrode fixing seat.

[0008] Further, an electrode for ionizing air is further included. One end of the electrode is fixedly connected to the electrode fixing seat, and the other end extends toward the ionization sleeve and is located in the ionization cavity inside the ionization sleeve.

[0009] Further, the electrode fixing seat includes an electrode fixing plate and an electrode connecting column. The electrode fixing plate is connected to the inner wall of the axial cavity. The electrode connecting column is connected to the electrode. The electrode connecting column is a columnar structure, and its direction is parallel to the axial cavity. The electrode fixing plate is a circular plate-like structure. The electrode connecting column is perpendicularly disposed with respect to the electrode fixing plate, and the electrode connecting column is fixedly connected to the central position of the electrode fixing plate.

[0010] Further, an annular groove is provided on the inner wall of the axial cavity. The width of the annular groove is adapted to the thickness of the electrode fixing plate. The electrode fixing plate is clamped in the annular groove, and the electrode fixing plate is fixed and supported by the main shaft, thereby fixing and supporting the electrode.

[0011] Further, the side surface of the electrode fixing plate away from the electrode connecting column is the first side surface, and the side surface of the electrode fixing plate close to the electrode connecting column is the second side surface. The first side surface and the second side surface are plane structures and are parallel to each other. A through hole is provided between the first side surface and the second side surface. A plurality of through holes are provided, and the plurality of through holes are arranged in an annular array centered on the center of the electrode fixing plate. The number of through holes is 4 to 6.

[0012] Further, the through hole forms an included angle with the first side surface of the electrode fixing plate, and the range of the included angle is 15 to 75°.

[0013] Further, a weight-reducing groove is provided on the first side surface, and the weight-reducing groove extends from the first side surface toward the second side surface.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1) By setting the diameter of the ionization sleeve to be smaller than the diameter of the intake sleeve, the diameter of the ionization sleeve is smaller, which facilitates the ionization sleeve to extend into the gaps of irregular articles for cleaning the gaps.

[0016] 2) By detachably connecting the spray head and the ionization sleeve, it is convenient to replace the spray head.

[0017] 3) By setting the diameter of the spray head to be smaller than the diameter of the ionization sleeve, the diameter of the spray head is further reduced, which further facilitates extending into the gaps of irregular articles for cleaning the gaps.

[0018] 4) By setting the through hole and the electrode fixing plate non-perpendicularly, there is an included angle between the direction of the through hole and the flow direction of the air flow in the axial cavity, and the through hole can change the flow direction of the air flow in the axial cavity. When the air flow passes through the through hole, the air flow moves obliquely along the through hole. Furthermore, after the air flow passes through the through hole, it will collide with the inner wall of the axial cavity and then be reflected to the side wall of the electrode. During the process of multiple wall collisions and reflections of the air flow, the air flow can be more evenly dispersed near the electrode, and thus the plasma generated after ionization by the electrode is more evenly distributed. Description of the Drawings

[0019] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Is a perspective view of a single-point atmospheric plasma cleaning machine according to an embodiment of the present utility model;

[0022] Figure 2 Is a cross-sectional view of a single-point atmospheric plasma cleaning machine according to an embodiment of the present utility model;

[0023] Figure 3 Is Figure 2 A partial enlarged view of;

[0024] Figure 4 Is a perspective view of an electrode fixing seat according to an embodiment of the present utility model.

[0025] In the figure: 1, intake sleeve; 2, ionization sleeve; 21, ionization chamber; 22, external thread; 3, nozzle; 31, annular protrusion; 4, main shaft; 41, axial cavity; 5, electrode fixing seat; 51, electrode fixing plate; 511, first side; 512, second side; 513, through hole; 514, weight reduction groove; 52, electrode connection column; 521, connection part; 6, electrode. Detailed Embodiments

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] See the attached Figure 1 As shown, a single-point atmospheric plasma cleaning machine in this embodiment includes an intake sleeve 1 and an ionization sleeve 2, and the intake sleeve 1 and the ionization sleeve 2 are detachably connected by threads. A nozzle 3 is provided at one end of the ionization sleeve 2 away from the intake sleeve 1, and the nozzle 3 and the ionization sleeve 2 are detachably connected to facilitate the replacement of the nozzle 3. Specifically, see the attached Figure 3 As shown, an external thread 22 is provided on the outer side of the ionization sleeve 2, and an annular protrusion 31 is provided on the side of the nozzle 3 close to the ionization sleeve 2. The annular protrusion 31 is provided with an internal thread, and the nozzle 3 and the ionization sleeve 2 are threadedly connected through the internal thread and the external thread 22.

[0028] See the attached Figure 2 As shown, in some embodiments, a main shaft 4 is provided inside the intake sleeve 1, and an axial cavity 41 is provided inside the main shaft 4 for the air flow to pass through. An electrode fixing seat 5 is provided in the axial cavity 41, and the electrode fixing seat 5 is fixed and supported by the main shaft 4.

[0029] In some embodiments, an electrode 6 for ionizing air is further included. One end of the electrode 6 is fixedly connected to the electrode fixing seat 5, and the electrode 6 is supported and fixed by the electrode fixing seat 5. The other end of the electrode 6 extends towards the ionization sleeve 2 and is located in the ionization chamber 21 inside the ionization sleeve 2.

[0030] In some implementations, the electrode 6 is a cylindrical structure, and the ratio of the column height to the column bottom diameter of the cylindrical electrode is 5 to 10. By setting the electrode 6 to be slender, the diameter of the ionization sleeve 2 provided outside the electrode 6 is smaller than the diameter of the intake sleeve 1, and the length is greater than the length of the electrode 6. Therefore, in this application, the diameter of the ionization sleeve 2 is reduced, and the length of the ionization sleeve 2 is increased, making the ionization sleeve 2 also a slender structure. The cleaning machine can extend into the gaps of irregular objects to clean the gaps.

[0031] See the attached Figure 4As shown, in some embodiments, the electrode fixing base 5 includes an electrode fixing plate 51 and an electrode connecting column 52. The electrode fixing plate 51 is used to connect with the inner wall of the axial cavity 41 to fix the position of the electrode fixing base 5; the electrode connecting column 52 is used to connect with the electrode 6 to fix the electrode 6. The electrode connecting column 52 is in a columnar structure, and its direction is parallel to the axial cavity 41. The electrode fixing plate 51 is in a circular plate-like structure. The electrode connecting column 52 is perpendicular to the electrode fixing plate 51, and the electrode connecting column 52 is fixedly connected to the central position of the electrode fixing plate 51, preferably integrally connected.

[0032] In some embodiments, on the inner wall of the axial cavity 41, an annular groove is provided. The width of the annular groove is adapted to the thickness of the electrode fixing plate 51. The electrode fixing plate 51 is clamped in the annular groove, and the electrode fixing plate 51 is fixed and supported by the main shaft 4, thereby fixing and supporting the electrode 6.

[0033] In some embodiments, the side surface of the electrode fixing plate 51 away from the electrode connecting column 52 is the first side surface 511, and the side surface of the electrode fixing plate 51 close to the electrode connecting column 52 is the second side surface 512. The first side surface 511 and the second side surface 512 are plane structures and are parallel to each other. A through hole 513 is provided between the first side surface 511 and the second side surface 512. By providing the through hole 513, it is beneficial for the air in the axial cavity 41 to pass through the through hole 513 to the vicinity of the electrode 6 for ionization. A plurality of through holes 513 are provided, and the plurality of through holes 513 are arranged in an annular array centered on the center of the electrode fixing plate 51. Experimental studies have shown that the best effect is achieved when the number of through holes 513 is 4 to 6.

[0034] In some embodiments, the through hole 513 is not perpendicular to the first side surface 511 of the electrode fixing plate 51, that is, the through hole 513 forms an angle with the first side surface 511 of the electrode fixing plate 51, and the range of the angle is 15 to 75°, preferably 45°. In the existing electrode fixing base 5, the through hole 513 is generally perpendicular to the first side surface 511. After the air flow passes through the through hole 513, it is a plurality of columnar air flows, and the air flow direction is parallel to the axial cavity 41, and the air flow cannot be well dispersed near the electrode 6. In the present application, by setting the through hole 513 not perpendicular to the electrode fixing plate 51, there is an angle between the direction of the through hole 513 and the air flow direction in the axial cavity 41, and the through hole 513 can change the air flow direction in the axial cavity 41. When the air flow passes through the through hole 513, the air flow moves obliquely along the through hole 513. As a result, after the air flow passes through the through hole 513, it will collide with the inner wall of the axial cavity 41 and then be reflected to the side wall of the electrode 6. During the process of multiple wall collisions and reflections of the air flow, the air flow can be more evenly dispersed near the electrode 6, and thus the plasma distribution generated after ionization by the electrode 6 is more uniform.

[0035] In some embodiments, a connection portion 521 is provided at one end of the electrode connection post 52 away from the electrode fixing plate. A connection hole is provided at a corresponding position of the electrode 6, and the shape and size of the connection hole are adapted to those of the connection portion 521. The electrode 6 and the electrode fixing base 5 are connected by inserting the connection portion 521 into the connection hole. In this embodiment, the connection portion 521 is cylindrical, and the connection portion 521 may also be rectangular parallelepiped-shaped. The present application does not limit the shape of the connection portion 521.

[0036] In some embodiments, a weight reduction groove 514 is provided on the first side surface 511, and the weight reduction groove 514 extends from the first side surface 511 towards the second side surface 512. By providing the weight reduction groove 514, the weight of the electrode fixing base 5 is reduced to increase the flexibility during the use of the spray gun.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation to the present invention.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it, and should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A single-point atmospheric plasma cleaning machine, characterized in that: The invention comprises an air intake sleeve (1) and an ionization sleeve (2), wherein the air intake sleeve (1) and the ionization sleeve (2) are connected, a nozzle (3) is arranged at one end of the ionization sleeve (2) away from the air intake sleeve (1), the nozzle (3) and the ionization sleeve (2) are detachably connected, and the diameter of the ionization sleeve (2) is smaller than the diameter of the air intake sleeve (1).

2. The single-point atmospheric plasma cleaning machine according to claim 1, characterized in that: The diameter of the nozzle (3) is smaller than the diameter of the ionization sleeve (2).

3. The single-point atmospheric plasma cleaning machine according to claim 1, characterized in that: An external thread (22) is provided on the outer side surface of the ionization sleeve (2), an annular protrusion (31) is provided on the side of the nozzle (3) close to the ionization sleeve (2), the annular protrusion (31) is provided with an internal thread, and the nozzle (3) and the ionization sleeve (2) are threadedly connected via the internal thread and the external thread (22).

4. The single-point atmospheric plasma cleaning machine according to claim 1, characterized in that: A main shaft (4) is arranged inside the air intake sleeve (1), an axial cavity (41) is arranged inside the main shaft (4), an electrode fixing seat (5) is arranged inside the axial cavity (41), and the main shaft (4) can fix and support the electrode fixing seat (5).

5. The single-point atmospheric plasma cleaning machine according to claim 4, characterized in that: It also comprises an electrode (6) for ionizing air, wherein one end of the electrode (6) is fixedly connected to the electrode fixing seat (5), and the other end extends in the direction of the ionization sleeve (2) and is located in the ionization chamber inside the ionization sleeve (2).

6. The single-point atmospheric plasma cleaning machine according to claim 4, characterized in that: The electrode fixing seat (5) comprises an electrode fixing plate (51) and an electrode connecting column (52); the electrode fixing plate (51) is connected to the inner wall of the axial cavity (41); the electrode connecting column (52) is connected to the electrode (6); the electrode connecting column (52) is a columnar structure, and its direction is arranged parallel to the axial cavity (41); the electrode fixing plate (51) is a circular plate structure; the electrode connecting column (52) and the electrode fixing plate (51) are arranged vertically, and the electrode connecting column (52) and the electrode fixing plate (51) are fixedly connected at the center position.

7. The single-point atmospheric plasma cleaning machine according to claim 6, characterized in that: An annular groove is provided on the inner wall of the axial cavity (41), the width of the annular groove being adapted to the thickness of the electrode fixing plate (51), and the electrode fixing plate (51) is fixed and supported by the main shaft (4) in the annular groove in which the electrode fixing plate (51) is clamped, thereby fixing and supporting the electrode (6).

8. The single-point atmospheric plasma cleaning machine according to claim 6, characterized in that: The side of the electrode fixing plate (51) away from the electrode connecting column (52) is a first side (511), and the side of the electrode fixing plate (51) close to the electrode connecting column (52) is a second side (512). The first side (511) and the second side (512) are planar structures and are arranged in parallel. A through hole (513) is arranged between the first side (511) and the second side (512). A plurality of through holes (513) are arranged in a circular array with the center of the electrode fixing plate (51) as the center. The number of through holes (513) is 4 to 6.

9. The single-point atmospheric plasma cleaning machine according to claim 8, characterized in that: The through hole (513) and the first side surface (511) of the electrode fixing plate (51) form an angle, and the angle ranges from 15 to 75 degrees.

10. The single-point atmospheric plasma cleaning machine according to claim 8, characterized in that: A weight-reducing groove (514) is provided on the first side surface (511), and the weight-reducing groove (514) extends from the first side surface (511) toward the second side surface (512).

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