Efficient sand blasting head of rotary suction type dry sand blasting machine

Abstract

The utility model discloses an efficient sandblasting head of a rotary suction type dry sandblasting machine, which comprises a sandblasting head body and a connecting pipe, two ends of the sandblasting head body are respectively provided with a nozzle and a sand inlet pipe, an air inlet pipe is obliquely arranged on the outer wall of the sandblasting head body and is communicated with the inside of the sandblasting head body, the end part of the connecting pipe is fixedly connected with a hexagon nut, and the connecting pipe is fixedly connected with the sandblasting head body. A limiting plate is installed on the outer wall of the sliding sleeve, the limiting plate is clamped in the limiting groove, and an elastic mechanism for driving the limiting plate to be tightly clamped in the limiting groove is installed on the outer wall of the sliding rod. The limiting groove is formed in the hexagonal nut, the limiting plate is arranged in the limiting groove, and the limiting plate is tightly clamped in the limiting groove all the time through elastic supporting force provided by the spring, so that nut looseness caused by vibration in the sand blasting process is prevented, the connection stability between the sand blasting head body and the connecting pipe is improved, and the service life of the sand blasting head is prolonged. And the loosening risk caused by vibration of the equipment is reduced, so that the safety and continuity of sand blasting operation are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting heads, in particular to a high-efficiency sandblasting head of a rotary suction dry sandblasting machine. Background Art

[0002] Sandblasting machine belongs to the category of air conveying machinery. It uses compressed air to transport powdered particles (diameter 1-4mm) from one place to another in a pipeline. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles scour the surface of the object, thereby improving the surface quality of the object.

[0003] In the prior art, the connection between the sandblasting head and the sandblasting machine is often made through a connecting pipe with a joint nut. However, due to the high-speed flow of the abrasive and the vibration generated during the sandblasting process, the abrasive and the connecting pipe resonate, transmitting the vibration to the joint nut. This vibration transmission can cause the joint nut to loosen, and even affect the stability and safety of the sandblasting equipment after long-term use. Therefore, it is necessary to propose a high-efficiency sandblasting head for a rotary suction dry sandblasting machine to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a high-efficiency sandblasting head for a rotary suction dry sandblasting machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The high-efficiency sandblasting head of the rotary suction dry sandblasting machine includes a sandblasting head body and a connecting pipe. A nozzle and a sand inlet pipe are respectively installed at both ends of the sandblasting head body. The outer wall of the sandblasting head body is inclinedly provided with an air inlet pipe, and is connected to the inside of the sandblasting head body. The end of the connecting pipe is fixedly connected with a hexagonal nut, and the hexagonal nut is threadedly connected to the outer wall of the sand inlet pipe. A limiting groove is provided on the outer wall of the hexagonal nut, and the outer wall of the limiting groove is arc-shaped. The outer wall of the sandblasting head body is fixedly connected with a sliding rod, and the outer wall of the sliding rod is slidably connected with a sliding sleeve. The outer wall of the sliding sleeve is installed with a limiting plate, and the limiting plate is clamped in the limiting groove. The outer wall of the slide rod is installed with an elastic mechanism that drives the limiting plate to tightly engage in the limiting groove.

[0007] Preferably, the elastic mechanism includes a spring sleeved on the outer wall of the slide rod, one end of the spring is fixedly connected to the outer wall of the sandblasting head body, and the other end of the spring is fixedly connected to the lower end surface of the slide sleeve.

[0008] Preferably, a connecting rod is fixedly connected to the outer wall of the sliding sleeve, the outer wall of the connecting rod is L-shaped, and the end of the connecting rod is fixedly connected to the outer wall of the limiting plate.

[0009] Preferably, the end of the sliding rod is fixedly connected to a limiting block, and the radius of the limiting block is larger than the radius of the sliding rod.

[0010] Preferably, a sliding groove is provided on the outer wall of the sliding rod, and a sliding block is fixedly connected to the inner wall of the sliding sleeve.

[0011] Preferably, the slider is slidably connected to the inside of the slide groove, and the outer walls on both sides of the slider are in contact with the inner wall of the slide groove.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model opens a limit groove on the hexagonal nut and sets a limit plate in the limit groove. The elastic supporting force provided by the spring is used to keep the limit plate tightly engaged in the limit groove at all times, thereby preventing the nut from loosening due to vibration during the sandblasting process, improving the connection stability between the sandblasting head body and the connecting pipe, reducing the risk of loosening of the equipment due to vibration, and thus enhancing the safety and sustainability of the sandblasting operation.

[0014] 2. In the utility model, the movement of the sliding sleeve on the sliding rod is limited by the sliding groove, which prevents the sliding sleeve from rotating or deflecting, so that the limit plate can always be accurately aligned with the limit groove, ensuring the precise engagement of the limit plate and the limit groove, thereby improving the connection accuracy and use reliability of the entire sandblasting head, providing the rotary suction dry sandblasting machine with a more efficient sandblasting effect and a longer equipment life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the high-efficiency sandblasting head of the rotary suction dry sandblasting machine proposed in the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the middle sand inlet pipe, hexagonal nut and other components.

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the middle slide rod, spring, limit plate and other components.

[0018] In the figure: 1. Sandblasting head body; 2. Nozzle; 3. Air inlet pipe; 4. Sand inlet pipe; 5. Connecting pipe; 6. Hexagonal nut; 7. Slide rod; 8. Limit block; 9. Slide groove; 10. Spring; 11. Slide sleeve; 12. Slider; 13. Limit plate; 14. Connecting rod; 15. Limit groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-3The high-efficiency sandblasting head of the rotary suction dry sandblasting machine includes a sandblasting head body 1 and a connecting pipe 5. The two ends of the sandblasting head body 1 are respectively installed with a nozzle 2 and a sand inlet pipe 4. The outer wall of the sandblasting head body 1 is inclined with an air inlet pipe 3, which is connected to the inside of the sandblasting head body 1. The end of the connecting pipe 5 is fixedly connected with a hexagonal nut 6, which is threadedly connected to the outer wall of the sand inlet pipe 4. The outer wall of the hexagonal nut 6 is provided with a limiting groove 15, and the outer wall of the limiting groove 15 is arc-shaped. The outer wall of the sandblasting head body 1 is fixedly connected with The slide rod 7 has a sliding sleeve 11 slidably connected to its outer wall, a limiting plate 13 is installed on its outer wall, and the limiting plate 13 is clamped in the limiting groove 15. The outer wall of the slide rod 7 is installed with an elastic mechanism that drives the limiting plate 13 to tightly engage in the limiting groove 15. By setting the limiting plate 13 clamped in the limiting groove 15, the hexagonal nut 6 can be effectively prevented from loosening during work, reducing the risk of loosening caused by vibration transmission, and improving the stability of the connection between the sandblasting head body 1 and the connecting pipe 5.

[0021] The elastic mechanism includes a spring 10 sleeved on the outer wall of the slide rod 7, one end of the spring 10 is fixedly connected to the outer wall of the sandblasting head body 1, and the other end of the spring 10 is fixedly connected to the lower end surface of the slide sleeve 11. The outer wall of the slide sleeve 11 is fixedly connected with a connecting rod 14, and the outer wall of the connecting rod 14 is L-shaped. The end of the connecting rod 14 is fixedly connected to the outer wall of the limit plate 13, and the end of the slide rod 7 is fixedly connected to the limit block 8. The radius of the limit block 8 is larger than the radius of the slide rod 7; the spring 10 provides an elastic supporting force, which can keep the limit plate 13 in the limit groove 15 at all times to prevent displacement caused by vibration. This automatic reset function ensures the stability of the limit structure and avoids loosening due to long-term use.

[0022] The outer wall of the slide bar 7 is provided with a slot 9, and a slider 12 is fixedly connected to the inner wall of the sleeve 11. The slider 12 slides within the slot 9, and the outer walls of both sides of the slider 12 are in close contact with the inner walls of the slot 9. The outer wall of the slide bar 7 is provided with a slot 9, and the inner wall of the sleeve 11 is fixedly connected to the slider 12. The slider 12 slides within the slot 9, and the outer walls of both sides of the slider 12 are in close contact with the inner walls of the slot 9. The slider 12 slides within the slot 9, preventing the sleeve 11 from rotating or moving unnecessarily on the slide bar 7, ensuring that the limit plate 13 always accurately aligns with the limit slot 15, improving the precision and reliability of the connection.

[0023] In the present invention, when the device is specifically used: the host conveys the sand material into the sandblasting head body 1 through the connecting pipe 5, and the air inlet pipe 3 introduces the compressed air into the sandblasting head body 1 at an inclined angle. The compressed air and the sand material are mixed in the sandblasting head body 1, thereby generating a high-speed jet flow at the nozzle 2, achieving an efficient sandblasting effect.

[0024] During the sandblasting process, since the high-speed flow of sand may generate vibration, the hexagonal nut 6 is fixed to the sand inlet pipe 4 through a threaded connection. In order to prevent the vibration from being transmitted to the hexagonal nut 6 and causing loosening, a clamping structure of the limit groove 15 and the limit plate 13 is designed. The limit plate 13 is clamped in the limit groove 15 to prevent the hexagonal nut 6 from loosening. The spring 10 provides an elastic supporting force to always keep the limit plate 13 in the limit groove 15, so that the limit plate 13 is tightly clamped with the limit groove 15 to prevent displacement caused by vibration, ensure the stability of the limit structure, and avoid loosening problems under long-term use.

[0025] The movement of the sliding sleeve 11 on the sliding rod 7 is limited by the sliding groove 9, which prevents rotation or deviation, ensures that the limiting plate 13 is always accurately aligned with the limiting groove 15, and improves the connection accuracy and reliability.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency sandblasting head for a rotary suction dry sandblasting machine, comprising a sandblasting head body (1) and a connecting pipe (5), characterized in that: The sandblasting head body (1) is provided with a nozzle (2) and a sand inlet pipe (4) at both ends thereof, an air inlet pipe (3) is provided on an outer wall of the sandblasting head body (1) at an angle, and is communicated with the interior of the sandblasting head body (1), an end of the connecting pipe (5) is fixedly connected with a hexagonal nut (6), the hexagonal nut (6) is threadedly connected to the outer wall of the sand inlet pipe (4), a limiting groove (15) is provided on the outer wall of the hexagonal nut (6), and the outer wall of the limiting groove (15) is arc-shaped, a sliding rod (7) is fixedly connected to the outer wall of the sliding rod (7), a sliding sleeve (11) is slidably connected to the outer wall of the sliding sleeve (11), a limiting plate (13) is installed on the outer wall of the sliding sleeve (11), the limiting plate (13) is clamped in the limiting groove (15), and an elastic mechanism is installed on the outer wall of the sliding rod (7) to drive the limiting plate (13) to be tightly clamped in the limiting groove (15).

2. The high-efficiency sandblasting head of the rotary suction dry sandblasting machine according to claim 1, characterized in that: The elastic mechanism comprises a spring (10) sleeved on the outer wall of the slide rod (7), one end of the spring (10) is fixedly connected to the outer wall of the sandblasting head body (1), and the other end of the spring (10) is fixedly connected to the lower end surface of the slide sleeve (11).

3. The high-efficiency sandblasting head of the rotary suction dry sandblasting machine according to claim 2, characterized in that: The outer wall of the sliding sleeve (11) is fixedly connected to a connecting rod (14), the outer wall of the connecting rod (14) is L-shaped, and the end of the connecting rod (14) is fixedly connected to the outer wall of the limiting plate (13).

4. The high-efficiency sandblasting head of the rotary suction dry sandblasting machine according to claim 3, characterized in that: The end of the slide rod (7) is fixedly connected to a limiting block (8), and the radius of the limiting block (8) is larger than the radius of the slide rod (7).

5. The high-efficiency sandblasting head of the rotary suction dry sandblasting machine according to claim 4, characterized in that: A sliding groove (9) is provided on the outer wall of the sliding rod (7), and a sliding block (12) is fixedly connected to the inner wall of the sliding sleeve (11).

6. The high-efficiency sandblasting head of the rotary suction dry sandblasting machine according to claim 5, characterized in that: The slider (12) is slidably connected to the inside of the slide groove (9), and the outer walls on both sides of the slider (12) are in contact with the inner wall of the slide groove (9).

Images