Nozzle for cold spraying gun

Abstract

The utility model relates to the technical field of nozzles, in particular to a nozzle for a cold spraying gun, which comprises a connecting pipe. A nozzle pipe is arranged in the connecting pipe, and a nozzle body is mounted at one end of the nozzle pipe; a first clamping hole is formed in the outer wall of the connecting pipe, and a second clamping hole matched with the first clamping hole is formed in the outer wall of the nozzle pipe; fixing pins are clamped in the first clamping holes and the second clamping holes, and due to the fact that the connecting pipe is in threaded connection with the outer portion of the pipeline of the cold spraying gun through the internal threads, the connecting pipe can be detached only by rotating the connecting pipe reversely in the threaded connection direction of the internal threads and the pipeline of the cold spraying gun. Then the fixing pin is pulled through the auxiliary plate, at the moment, the compression spring can conduct corresponding stretching movement, after one end of the fixing pin is separated from the second clamping hole, the connecting pipe and the nozzle pipe can be detached and separated, and therefore the connecting pipe and the nozzle pipe can be conveniently detached and maintained, and the service life of the nozzle body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles, in particular to a nozzle for a cold spraying spray gun. Background Art

[0002] The cold spray gun is a key device in cold spray technology. It uses compressed gas to accelerate powder particles so that they hit the substrate at supersonic speed at low temperature to form a dense coating. This type of spray gun has the characteristics of high efficiency and corrosion resistance, and is suitable for complex printing environments. According to the different air pressures, cold spray guns are mainly divided into two types: high pressure and low pressure. In addition, there are spray guns designed for specific processes, such as inner hole cold spray, pulsed gas cold spray, etc. The development of these technologies has provided more possibilities for the application of cold spray technology.

[0003] The nozzle is an important component of the cold spray gun, but most of the existing nozzles are of integrated design, which is not convenient for internal inspection or maintenance, seriously affecting the service life of the nozzle.

[0004] For this purpose, a nozzle for a cold spray gun is proposed. Utility Model Content

[0005] The utility model aims to provide a nozzle for a cold spraying spray gun.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A nozzle for a cold spray gun, comprising:

[0008] Connecting pipe;

[0009] A nozzle tube is provided inside the connecting tube, and a nozzle body is installed at one end of the nozzle tube;

[0010] A first clamping hole is formed on the outer wall of the connecting pipe, and a second clamping hole matching the first clamping hole is formed on the outer wall of the nozzle pipe;

[0011] Fixing pins are clamped in the first clamping hole and the second clamping hole.

[0012] Preferably, an auxiliary plate is fixed to one end of the fixing pin.

[0013] Preferably, a compression spring is provided outside the fixing pin, one end of the compression spring is fixed to the auxiliary plate, and the other end of the compression spring is fixed to the outer wall of the connecting pipe.

[0014] Preferably, a sealing ring is provided inside the connecting pipe, and one end of the nozzle pipe abuts against the sealing ring.

[0015] Preferably, an internal thread is provided on the inner wall of the connecting pipe, and the connecting pipe is threadedly connected to the outside of the pipeline of the cold spray gun through the internal thread.

[0016] Preferably, a sealing plate is provided at the bottom of the nozzle body, and connecting strips are symmetrically fixed on the top of the sealing plate;

[0017] A threaded hole is provided on the outer wall of the connecting strip, and a threaded rod is threadedly connected to the threaded hole;

[0018] A rotating strip is fixed at one end of the threaded rod;

[0019] A clamping hole is provided on the outer wall of the connecting pipe;

[0020] One end of the threaded rod away from the turning bar is located inside the clamping hole.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] Since the connecting pipe is threadedly connected to the outside of the pipe of the cold spray gun through the internal thread, the connecting pipe can be disassembled by simply rotating the connecting pipe in the opposite direction along the threaded connection direction between the internal thread and the pipe of the cold spray gun;

[0023] Then, the fixing pin is pulled by the auxiliary plate, and the compression spring will perform a corresponding stretching movement. After one end of the fixing pin is disengaged from the second clamping hole, the connecting pipe and the nozzle pipe can be disassembled and separated. Therefore, the utility model can facilitate the disassembly and maintenance of the connecting pipe and the nozzle pipe, thereby prolonging the service life of the nozzle body;

[0024] Since a sealing ring is arranged inside the connecting pipe, one end of the nozzle pipe abuts against the sealing ring. Under the action of the sealing ring, the sealing performance of the connection between the connecting pipe and the nozzle pipe can be improved to avoid leakage.

[0025] The utility model places the sealing plate at the bottom of the nozzle body, and then rotates the turning bar, which drives the threaded rod to move in the threaded hole. When one end of the threaded rod is located inside the clamping hole, the sealing plate can be fixed. By providing the sealing plate, the sealing plate can prevent foreign debris from entering the nozzle body when the nozzle body is not in use, thereby preventing the nozzle body from being blocked and improving the working efficiency of the nozzle body.

[0026] The threaded rod is rotated by the turning bar, and after one end of the threaded rod is disengaged from the inside of the clamping hole, the sealing plate can be disassembled, so as to avoid the sealing plate blocking the work of the nozzle body, and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0029] Figure 3 This is a schematic diagram of the connection between the connecting pipe and the nozzle pipe in the utility model;

[0030] Figure 4 For this utility model Figure 3 Enlarged view of B.

[0031] In the figure: 1. connecting pipe; 2. nozzle pipe; 3. nozzle body; 4. internal thread; 5. sealing ring; 6. first clamping hole; 7. second clamping hole; 8. fixing pin; 9. auxiliary plate; 10. turning strip; 11. compression spring; 12. sealing plate; 13. connecting strip; 14. threaded hole; 15. clamping hole; 16. threaded rod. DETAILED DESCRIPTION

[0032] 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.

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Embodiment 1:

[0035] See also Figure 1 , 3 4. The utility model provides a technical solution: To achieve the above-mentioned purpose, the utility model provides the following technical solution: A nozzle for a cold spray gun, comprising: a connecting tube 1; a nozzle tube 2 is arranged inside the connecting tube 1, and a nozzle body 3 is installed at one end of the nozzle tube 2; a first clamping hole 6 is opened on the outer wall of the connecting tube 1, and a second clamping hole 7 matching the first clamping hole 6 is opened on the outer wall of the nozzle tube 2; a fixing pin 8 is clamped in the first clamping hole 6 and the second clamping hole 7, an auxiliary plate 9 is fixed at one end of the fixing pin 8, a compression spring 11 is arranged outside the fixing pin 8, one end of the compression spring 11 is fixed to the auxiliary plate 9, and the other end of the compression spring 11 is fixed to the outer wall of the connecting tube 1, a sealing ring 5 is arranged inside the connecting tube 1, one end of the nozzle tube 2 is abutted against the sealing ring 5, an internal thread 4 is opened on the inner wall of the connecting tube 1, and the connecting tube 1 is threadedly connected to the outside of the pipeline of the cold spray gun through the internal thread 4.

[0036] Specifically, since the connecting pipe 1 is threadedly connected to the outside of the pipe of the cold spray gun through the internal thread 4, the connecting pipe 1 can be disassembled by simply rotating the connecting pipe 1 in the opposite direction along the threaded connection direction between the internal thread 4 and the pipe of the cold spray gun;

[0037] Then, the fixing pin 8 is pulled by the auxiliary plate 9, and the compression spring 11 will perform a corresponding stretching movement. After one end of the fixing pin 8 is disengaged from the second clamping hole 7, the connecting pipe 1 and the nozzle pipe 2 can be disassembled and separated. Therefore, the utility model can facilitate the disassembly and maintenance of the connecting pipe 1 and the nozzle pipe 2, thereby prolonging the service life of the nozzle body 3;

[0038] Since a sealing ring 5 is provided inside the connecting pipe 1, one end of the nozzle pipe 2 abuts against the sealing ring 5. Under the action of the sealing ring 5, the sealing performance of the connection between the connecting pipe 1 and the nozzle pipe 2 can be improved to avoid leakage.

[0039] Embodiment 2:

[0040] See also Figure 1 , 2 The utility model provides a technical solution: a nozzle for a cold spray gun, a sealing plate 12 is provided at the bottom of the nozzle body 3, a connecting strip 13 is symmetrically fixed on the top of the sealing plate 12; a threaded hole 14 is provided on the outer wall of the connecting strip 13, and a threaded rod 16 is connected to the inner thread 4 of the threaded hole 14; a turning strip 10 is fixed at one end of the threaded rod 16; a clamping hole 15 is provided on the outer wall of the connecting pipe 1; an end of the threaded rod 16 away from the turning strip 10 is located inside the clamping hole 15.

[0041] Specifically, the utility model places the sealing plate 12 at the bottom of the nozzle body 3, and then rotates the turning bar 10, which drives the threaded rod 16 to move in the threaded hole 14. When one end of the threaded rod 16 is located inside the clamping hole 15, the sealing plate 12 can be fixed. By providing the sealing plate 12, the sealing plate 12 can prevent foreign debris from entering the nozzle body 3 when the nozzle body 3 is not in use, thereby preventing the nozzle body 3 from being blocked and improving the working efficiency of the nozzle body 3.

[0042] By rotating the threaded rod 16 through the rotating bar 10 and after one end of the threaded rod 16 is disengaged from the inside of the clamping hole 15 , the sealing plate 12 can be disassembled to prevent the sealing plate 12 from blocking the operation of the nozzle body 3 , which is convenient to use.

[0043] Working principle:

[0044] First, since the connecting pipe 1 is threadedly connected to the outside of the cold spray gun pipe through the internal thread 4, the connecting pipe 1 can be disassembled by simply rotating the connecting pipe 1 in the opposite direction of the threaded connection direction between the internal thread 4 and the cold spray gun pipe;

[0045] Then, the fixing pin 8 is pulled by the auxiliary plate 9, and the compression spring 11 will perform a corresponding stretching movement. After one end of the fixing pin 8 is disengaged from the second clamping hole 7, the connecting pipe 1 and the nozzle pipe 2 can be disassembled and separated. Therefore, the utility model can facilitate the disassembly and maintenance of the connecting pipe 1 and the nozzle pipe 2, thereby increasing the service life of the nozzle body 3.

[0046] Secondly, by placing the sealing plate 12 at the bottom of the nozzle body 3, and then rotating the turning bar 10, the turning bar 10 will drive the threaded rod 16 to move in the threaded hole 14. When one end of the threaded rod 16 is located inside the clamping hole 15, the sealing plate 12 can be fixed. By providing the sealing plate 12, the sealing plate 12 can prevent foreign debris from entering the nozzle body 3 when the nozzle body 3 is not in use, thereby preventing the nozzle body 3 from being blocked and improving the working efficiency of the nozzle body 3.

[0047] By rotating the threaded rod 16 through the rotating bar 10 and after one end of the threaded rod 16 is disengaged from the inside of the clamping hole 15 , the sealing plate 12 can be disassembled to prevent the sealing plate 12 from blocking the operation of the nozzle body 3 , which is convenient to use.

[0048] In the description of the present invention, it should be understood that the terms "center", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are 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 therefore should not be understood as limiting the scope of protection of the present invention.

[0049] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A nozzle for a cold spray gun, characterized in that: include: Connecting pipe (1); A nozzle tube (2) is provided inside the connecting tube (1), and a nozzle body (3) is installed at one end of the nozzle tube (2); A first clamping hole (6) is provided on the outer wall of the connecting tube (1), and a second clamping hole (7) matching with the first clamping hole (6) is provided on the outer wall of the nozzle tube (2); A fixing pin (8) is clamped in the first clamping hole (6) and the second clamping hole (7).

2. A cold spray gun nozzle according to claim 1, characterized in that: An auxiliary plate (9) is fixed to one end of the fixing pin (8).

3. A cold spray gun nozzle according to claim 2, characterized in that: A compression spring (11) is provided outside the fixing pin (8), one end of the compression spring (11) is fixed to the auxiliary plate (9), and the other end of the compression spring (11) is fixed to the outer wall of the connecting pipe (1).

4. A cold spray gun nozzle according to claim 1, characterized in that: A sealing ring (5) is provided inside the connecting pipe (1), and one end of the nozzle pipe (2) abuts against the sealing ring (5).

5. The cold spray gun nozzle according to claim 1, characterized in that: An internal thread (4) is provided on the inner wall of the connecting pipe (1), and the connecting pipe (1) is threadedly connected to the outside of a pipeline of a cold spraying gun via the internal thread (4).

6. A cold spray gun nozzle according to claim 1, characterized in that: A sealing plate (12) is provided at the bottom of the nozzle body (3), and a connecting strip (13) is symmetrically fixed to the top of the sealing plate (12); A threaded hole (14) is provided on the outer wall of the connecting strip (13), and a threaded rod (16) is connected to the inner thread (4) of the threaded hole (14); A rotating bar (10) is fixed to one end of the threaded rod (16); The outer wall of the connecting pipe (1) is provided with a clamping hole (15); One end of the threaded rod (16) away from the turning bar (10) is located inside the clamping hole (15).

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