Stable and reliable low-temperature plasma spray gun

Abstract

The utility model discloses a stable and reliable low-temperature plasma spray gun, which comprises a first shell and a second shell, a base is movably connected between the bottom ends of the first shell and the second shell, and one side of each of the first shell and the second shell is fixedly connected with a connecting sleeve. According to the stable and reliable low-temperature plasma spray gun, by arranging a first external connecting ring, a second external connecting ring, an elastic limiting ring, a first connecting bottom plate, a second connecting bottom plate and mounting bolts, the whole structure is mounted in equipment for use, the situation that the use effect of the spray gun is reduced due to sliding is avoided, and the stability of the whole structure is enhanced; the problems that the overall structure of the plasma spray gun is fixed, when the interior of the plasma spray gun breaks down, the plasma spray gun cannot be disassembled and checked at the first time, a certain time needs to be consumed, the working efficiency of the plasma spray gun is affected, and meanwhile, the plasma spray gun is mainly spliced and fixed through bolts at the present stage, and the working efficiency is affected are solved. And the operation is complicated.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature plasma spray guns, in particular to a stable and reliable low-temperature plasma spray gun. Background Art

[0002] A plasma spray gun is a spray gun that uses a plasma arc as a heat source. It heats the gas to an extremely high temperature through a high-voltage electric field to form a plasma, and then ejects the plasma through a nozzle. It is a spraying technology that can spray the spray material onto the surface of the object being sprayed. The plasma contains a large number of free electrons and ions, and has the characteristics of high temperature, high speed, and high energy. The free electrons and ions in the plasma will collide with the gas molecules, heat and accelerate the gas molecules, and form a high-speed airflow. When the spray material enters the high-speed airflow, it will be affected by the high temperature and high-speed airflow, quickly melt and form a liquid. At the same time, the spray material will also react chemically with the gas molecules to form a more solid coating.

[0003] However, the overall structure of the plasma spray gun currently used is fixed. When a fault occurs inside the plasma spray gun, it cannot be disassembled and inspected immediately, which takes a certain amount of time and affects the working efficiency of the plasma spray gun. At the same time, it is currently mainly fixed by bolts, which complicates the operation.

[0004] Therefore, a new type of stable and reliable low-temperature plasma spray gun is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a stable and reliable low-temperature plasma spray gun to solve the problem that the overall structure of the plasma spray gun proposed in the above-mentioned background technology is fixed. When a fault occurs inside the plasma spray gun, it cannot be disassembled and inspected immediately, which takes a certain amount of time and affects the working efficiency of the plasma spray gun. At the same time, at this stage, it mainly relies on bolt splicing and fixing, which complicates the operation.

[0006] To achieve the above object, the utility model provides the following technical solution: a stable and reliable low-temperature plasma spray gun, comprising a first shell and a second shell, a base is movably connected between the bottom ends of the first shell and the second shell, and a connecting sleeve is fixedly connected to one side of the first shell and the second shell;

[0007] The bottom end of the base is movably connected to the first external ring and the second external ring in sequence, the bottom end of the first external ring is fixedly connected to the first connecting bottom plate, the bottom end of the second external ring is fixedly connected to the second connecting bottom plate, mounting bolts are penetrated inside both sides of the first connecting bottom plate and the second connecting bottom plate, the front end of the mounting bolts is fixedly connected to the first knob, and an ignition assembly is fitted on the top end of the base.

[0008] Preferably, the first connecting base plate and the second connecting base plate are in contact with each other, the first external connecting ring and the second external connecting ring are both arc-shaped, and the inner walls of the first external connecting ring and the second external connecting ring are fixedly connected with elastic limiting rings.

[0009] Preferably, an independent space is formed between the first shell, the second shell and the base, and the mounting bolts are symmetrically distributed about a vertical center line of the base.

[0010] Preferably, the rear end of the top of the first shell is fixedly connected to the second mounting plate, the front end of the top of the second shell is fixedly connected to the first mounting plate, the front end of the first mounting plate is fixedly connected to multiple sets of external plug-ins, and the rear end of the second mounting plate is provided with multiple sets of connecting grooves.

[0011] Preferably, the external plug-in and the connecting groove correspond one to one, the internal parts of the external plug-in and the connecting groove form a snap connection, the surfaces of the first shell and the second shell are penetrated with multiple groups of heat dissipation holes, and the dust filter is fixedly connected to the inside of the heat dissipation holes.

[0012] Preferably, a gas connecting pipe is provided through one side of the ignition assembly, and the gas connecting pipe transversely passes through the interior of the connecting sleeve.

[0013] Preferably, a fixing ring is fixedly connected to the outer wall on the other side of the first shell and the second shell, and a limiting inner groove is provided at the top and bottom ends of the outer side of the fixing ring. A connecting external part is penetrated inside the fixing ring, a nozzle is provided on one side of the connecting external part, and the other side of the connecting external part is connected to the interior of the ignition component.

[0014] Preferably, the top and bottom ends of the outside of the connecting outer part are fixedly connected with protrusions, and the protrusions pass through the interior of the fixing ring. The top and bottom ends of the fixing ring are penetrated by fastening bolts, one side of the fastening bolt is fixedly connected with a second knob, and the other side of the fastening bolt passes through the interior of the protrusion.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the stable and reliable low-temperature plasma spray gun not only achieves high stability and convenient assembly, but also achieves stable installation;

[0016] (1) By providing a first external ring, a second external ring, an elastic limiting ring, a first connecting bottom plate, a second connecting bottom plate and a mounting bolt, after the first connecting bottom plate and the second connecting bottom plate are fitted together, the first external ring and the second external ring form a space, and the overall structure can be installed in the equipment for use. At the same time, two groups of elastic limiting rings arranged on the inner wall are used to enhance the firmness and stability between the installation part and the first external ring and the second external ring, thereby avoiding sliding and reducing the use effect of the spray gun. By rotating the two groups of mounting bolts through the interior of the first connecting bottom plate and the second connecting bottom plate, the first external ring and the second external ring can be fitted and fixed on the outer end of the mounting component, thereby enhancing the stability of the overall structure and ensuring that the spray gun will not shake or even fall off during use;

[0017] (2) By providing a first shell, a second shell, a base, a first mounting plate, a second mounting plate, an external plug-in and a connecting groove, an independent space is formed between the first shell, the second shell and the base for placing the ignition component, providing all-round safety protection for the ignition component. The engaging structure between the external plug-in and the connecting groove facilitates the disassembly and assembly of the first shell and the second shell, thereby improving the flexibility of the overall structure and greatly shortening the disassembly and assembly time. When heat is generated inside the independent space, it can be discharged to the outside through a plurality of heat dissipation holes to avoid heat accumulation. The dust filter can filter the flowing air to prevent foreign matter from invading and damaging the ignition component.

[0018] (3) By providing a fixed ring, a protrusion, a fastening bolt, a second knob and a limiting inner groove, the connecting outer member horizontally penetrates the interior of the fixed ring, and the protrusions fixed at both ends of the connecting outer member penetrate the interior of the fixed ring. The fastening bolt is rotated to penetrate the interior of the fixed ring and the protrusion in turn, thereby enhancing the connection between the fixed ring and the connecting outer member, and strengthening the connectivity of the connecting outer member itself. The second knob moves into the limiting inner groove, which can effectively protect the second knob and avoid being exposed to the outside for a long time to shorten its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the base structure of the utility model;

[0021] Figure 3 It is a side view structural diagram of the first external connecting ring of the utility model;

[0022] Figure 4 It is a side view structural schematic diagram of the fixed ferrule of the utility model.

[0023] In the figure: 1. first connecting base plate; 2. first knob; 3. first external ring; 4. nozzle; 5. fastening bolt; 6. fixing ring; 7. first outer shell; 8. heat dissipation hole; 9. dust filter; 10. gas connecting pipe; 11. connecting sleeve; 12. base; 13. ignition assembly; 14. second outer shell; 15. first mounting plate; 16. external plug-in unit; 17. second mounting plate; 18. connecting groove; 19. elastic limiting ring; 20. second external ring; 21. second connecting base plate; 22. mounting bolt; 23. second knob; 24. connecting external part; 25. bump; 26. limiting inner groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A stable and reliable low-temperature plasma spray gun comprises a first shell 7 and a second shell 14, a base 12 is movably connected between the bottom ends of the first shell 7 and the second shell 14, and a connecting sleeve 11 is fixedly connected to one side of the first shell 7 and the second shell 14;

[0026] The bottom end of the base 12 is movably connected with the first external ring 3 and the second external ring 20 in sequence, the bottom end of the first external ring 3 is fixedly connected with the first connection bottom plate 1, the bottom end of the second external ring 20 is fixedly connected with the second connection bottom plate 21, the insides of both sides of the first connection bottom plate 1 and the second connection bottom plate 21 are penetrated by mounting bolts 22, the front end of the mounting bolts 22 is fixedly connected with the first knob 2, and the top end of the base 12 is fitted with an ignition assembly 13;

[0027] The first connecting bottom plate 1 and the second connecting bottom plate 21 are fitted together, the first external connecting ring 3 and the second external connecting ring 20 are both arc-shaped, and the inner walls of the first external connecting ring 3 and the second external connecting ring 20 are fixedly connected with elastic limiting rings 19;

[0028] An independent space is formed between the first housing 7, the second housing 14 and the base 12, and the mounting bolts 22 are symmetrically distributed about the vertical center line of the base 12;

[0029] Specifically, Figure 1 and Figure 3As shown, when in use, the first external ring 3 and the second external ring 20 are flipped downward until the first connecting base plate 1 and the second connecting base plate 21 are in contact with each other, and the first knob 2 is turned in sequence to pass the mounting bolts 22 through the first connecting base plate 1 and the second connecting base plate 21, and the overall structure is installed in the device by limiting and fixing them with two sets of elastic limiting rings 19.

[0030] Embodiment 2: The rear end of the top of the first housing 7 is fixedly connected to the second mounting plate 17, the front end of the top of the second housing 14 is fixedly connected to the first mounting plate 15, the front end of the first mounting plate 15 is fixedly connected to multiple sets of external plug-ins 16, and the rear end of the second mounting plate 17 is provided with multiple sets of connecting grooves 18;

[0031] The external plug-in 16 and the connecting groove 18 correspond to each other one by one, and the internal parts of the external plug-in 16 and the connecting groove 18 form a snap connection. The surfaces of the first shell 7 and the second shell 14 are penetrated by a plurality of heat dissipation holes 8, and the dust filter 9 is fixedly connected to the internal parts of the heat dissipation holes 8;

[0032] A gas connecting pipe 10 is provided through one side of the ignition assembly 13, and the gas connecting pipe 10 transversely passes through the interior of the connecting sleeve 11;

[0033] Specifically, Figure 1 and Figure 2 As shown, when in use, the ignition assembly 13 is placed closely on the surface of the base 12, and the first shell 7 and the second shell 14 are rotated upward until the external plug-in 16 is snap-fitted and fixed in the corresponding connecting groove 18, thereby fixing the first mounting plate 15 and the second mounting plate 17 together.

[0034] Embodiment 3: The outer wall of the first housing 7 and the other side of the second housing 14 is fixedly connected with a fixed ring 6, and the top and bottom ends of the outer side of the fixed ring 6 are provided with a limited inner groove 26, and the interior of the fixed ring 6 is penetrated by a connecting outer member 24, and one side of the connecting outer member 24 is provided with a nozzle 4, and the other side of the connecting outer member 24 is connected with the interior of the ignition assembly 13;

[0035] The top and bottom ends of the outer connecting member 24 are fixedly connected with a protrusion 25, and the protrusion 25 passes through the interior of the fixing ring 6. The top and bottom ends of the fixing ring 6 are penetrated by a fastening bolt 5, one side of the fastening bolt 5 is fixedly connected with the second knob 23, and the other side of the fastening bolt 5 passes through the interior of the protrusion 25;

[0036] Specifically, Figure 1 and Figure 4 As shown, when in use, the connecting outer part 24 passes through the interior of the fixed ring 6 horizontally, and the protrusions 25 fixed at both ends pass through the interior of the fixed ring 6. After the second knob 23 is rotated, it drives the fastening bolt 5 to pass through the interior of the fixed ring 6 and the protrusion 25 in turn to fix the two.

[0037] Working principle: When the utility model is in use, the ignition assembly 13 is placed on the surface of the base 12, the first shell 7 and the second shell 14 are rotated upward until the external plug-in 16 is engaged and fixed in the corresponding connecting groove 18, the first mounting plate 15 and the second mounting plate 17 are fixed together, the first external ring 3 and the second external ring 20 are flipped downward until the first connecting bottom plate 1 and the second connecting bottom plate 21 are fitted together, and the first knob 2 is rotated in turn to pass the mounting bolt 22 through the first connecting bottom plate 1 and the second connecting bottom plate 21, and the two sets of elastic limiting rings 19 are used to limit and fix, and the overall structure is installed in the equipment, the connecting external part 24 passes through the interior of the fixed ring 6 horizontally, and the protrusions 25 fixed at both ends pass through the interior of the fixed ring 6, and the second knob 23 is rotated to drive the fastening bolt 5 to pass through the interior of the fixed ring 6 and the protrusion 25 in turn to fix the nozzle 4 on one side.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A stable and reliable low-temperature plasma spray gun, comprising a first shell (7) and a second shell (14), characterized in that: A base (12) is movably connected between the bottom ends of the first shell (7) and the second shell (14), and a connecting sleeve (11) is fixedly connected to one side of each of the first shell (7) and the second shell (14); The bottom end of the base (12) is movably connected to a first external ring (3) and a second external ring (20) in sequence; the bottom end of the first external ring (3) is fixedly connected to a first connecting base plate (1); the bottom end of the second external ring (20) is fixedly connected to a second connecting base plate (21); mounting bolts (22) are provided through the interior of both sides of the first connecting base plate (1) and the second connecting base plate (21); the front end of the mounting bolts (22) is fixedly connected to a first knob (2); and an ignition assembly (13) is fitted on the top end of the base (12).

2. A stable and reliable low-temperature plasma spray gun according to claim 1, characterized in that: The first connecting base plate (1) and the second connecting base plate (21) are fitted together, the first external connecting ring (3) and the second external connecting ring (20) are both arc-shaped, and the inner walls of the first external connecting ring (3) and the second external connecting ring (20) are fixedly connected with elastic limiting rings (19).

3. A stable and reliable low-temperature plasma spray gun according to claim 1, characterized in that: An independent space is formed between the first shell (7), the second shell (14) and the base (12), and the mounting bolts (22) are symmetrically distributed about a vertical center line of the base (12).

4. A stable and reliable low-temperature plasma spray gun according to claim 1, characterized in that: The rear end of the top of the first shell (7) is fixedly connected to a second mounting plate (17), the front end of the top of the second shell (14) is fixedly connected to a first mounting plate (15), the front end of the first mounting plate (15) is fixedly connected to a plurality of external plug-ins (16), and the rear end of the second mounting plate (17) is provided with a plurality of connection grooves (18).

5. A stable and reliable low-temperature plasma spray gun according to claim 4, characterized in that: The external plug-in (16) and the connecting groove (18) correspond one to one, and the inside of the external plug-in (16) and the connecting groove (18) form a snap-fit ​​connection. The surfaces of the first shell (7) and the second shell (14) are penetrated by a plurality of groups of heat dissipation holes (8), and the inside of the heat dissipation holes (8) is fixedly connected with a dust filter (9).

6. A stable and reliable low-temperature plasma spray gun according to claim 1, characterized in that: A gas connecting pipe (10) is provided through one side of the ignition component (13), and the gas connecting pipe (10) transversely passes through the interior of the connecting sleeve (11).

7. A stable and reliable low-temperature plasma spray gun according to claim 1, characterized in that: A fixed ring (6) is fixedly connected to the outer wall of the other side of the first shell (7) and the second shell (14); the top and bottom ends of the outer side of the fixed ring (6) are provided with limiting inner grooves (26); a connecting outer part (24) is provided through the interior of the fixed ring (6); a nozzle (4) is provided on one side of the connecting outer part (24); and the other side of the connecting outer part (24) is connected to the interior of the ignition component (13).

8. A stable and reliable low-temperature plasma spray gun according to claim 7, characterized in that: The top and bottom ends of the outside of the connecting outer member (24) are fixedly connected with a protrusion (25), and the protrusion (25) passes through the interior of the fixing ring (6). The top and bottom ends of the fixing ring (6) are penetrated by a fastening bolt (5), one side of the fastening bolt (5) is fixedly connected with a second knob (23), and the other side of the fastening bolt (5) passes through the interior of the protrusion (25).

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