An apparatus for sandblasting the surface of an aircraft

Abstract

The utility model relates to the field of equipment metal structure surface treatment technology, concretely is an aviation equipment surface sand blasting treatment device, including sand blasting storage tank, dust collecting tank, isolating cover, still include sand blasting subassembly connected with sand blasting storage tank, shunt subassembly cooperation with sand blasting subassembly, rigid isolating cover is composed of rigid metal frame and bottom rubber pad, bottom flexible pad is pasted with equipment surface, constitutes closed sand blasting area, avoids sand particle splashing and forms inner cavity redundancy, need not artificial adhesive tape protection, saves time and labour, and it is convenient to carry out, through the rotation joint positioning ring and the outer thread through pipe rotation joint fixed, can adjust sand blasting height, is convenient for the control to surface roughness and sand blasting range, and the rotation joint positioning is simple in design, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment technology for metal structures of equipment, specifically a sandblasting treatment device for the surface of aviation equipment. Background Technology

[0002] In the field of equipment repair, metal structure bonding is a commonly used technique. Surface treatment before bonding directly affects the bonding strength and durability of the bonding interface. Metal surface treatment methods include physical methods and chemical methods. Physical methods refer to the technical means of creating a rough state on the structural surface through physical contact. They have the advantages of wide applicability and strong operability. Commonly used physical treatment methods include grinding and sandblasting. Among them, sandblasting has significant advantages in terms of removal efficiency and roughness uniformity.

[0003] Current sandblasting processes typically involve skilled workers wearing protective gear and using handheld sandblasting guns to sandblast designated areas in a sealed, isolated sandblasting room. This process has the following problems:

[0004] 1. The quality of sandblasting depends on the skill level of the workers, and the sandblasting height at the sandblasting outlet cannot be quantitatively controlled.

[0005] 2. The process has high requirements for implementation conditions. A dedicated space needs to be set up to prevent sandblasting particles from splashing, and the flying dust is harmful to the human body.

[0006] In addition, aircraft maintenance involves a large number of narrow and complex spaces, and some areas are difficult or costly to dismantle, requiring in-situ sandblasting. The dust generated by open sandblasting is mainly composed of Al2O3 and SiO2, which does not meet the cleanliness requirements of the repair workshop. During the sandblasting process, waste sand is easily retained deep in the cavity, forming excess material and endangering the service safety of the equipment.

[0007] Therefore, for the demanding scenarios of metal structure bonding pretreatment in the field of equipment repair, there is an urgent need for a sandblasting device that can penetrate narrow spaces, adjust the nozzle height, and integrate an efficient waste sand recovery system to solve the multiple bottlenecks of traditional sandblasting equipment in terms of adaptability, precision, cleanliness, and efficiency. Utility Model Content

[0008] To address the aforementioned problems, this utility model proposes a sandblasting treatment device for the surface of aviation equipment.

[0009] A sandblasting treatment device for the surface of aviation equipment includes a sandblasting tank, a dust collection tank, an isolation cover, a sandblasting assembly connected to the sandblasting tank, and a flow diversion assembly that cooperates with the sandblasting assembly.

[0010] The sandblasting assembly includes a flexible conduit connected to a sandblasting storage tank and a sandblasting head connected to the flexible conduit.

[0011] The diversion assembly includes a purge nozzle, a dust collection nozzle, and a second flexible conduit connected to the dust collection nozzle, all housed within an isolation hood. The second flexible conduit is connected to a dust collection tank.

[0012] Furthermore, the sandblasting storage tank is provided with a top cover, and the top cover is provided with a handle.

[0013] Furthermore, the outlet of the sandblasting head is a sand outlet with a funnel-shaped cross-section, and the top of the sandblasting head is provided with a bent sand outlet guide parallel to the surface of the equipment.

[0014] Furthermore, the sand outlet and the sand outlet guide tube are fixed by two rubber pads and two screw-on positioning rings.

[0015] The beneficial effects of this utility model are as follows: The rigid isolation cover of this utility model consists of a rigid metal frame and a bottom rubber pad. The bottom flexible pad fits into the surface of the equipment to form a closed sandblasting area, preventing sand particles from splashing and forming excess material in the inner cavity. There is no need for manual adhesive tape protection, which saves time and effort and is easy to implement. By screwing the positioning ring to the external threaded pipe for fixation, the sandblasting height can be adjusted, which makes it easy to control the surface roughness and sandblasting range. The screw-on positioning design is simple and easy to operate. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the sandblasting head structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the diversion tube structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sandblasting storage tank structure of this utility model;

[0021] Reference numerals in the attached diagram: 1. Sandblasting storage tank; 2. Flexible conduit one; 3. Sandblasting head; 31. Rubber pad; 32. Screw-on positioning ring; 33. Sand outlet conduit; 34. Sand outlet; 4. Isolation cover; 5. Blowing nozzle; 51. Compressed airflow conduit; 52. Diverter pipe; 53. Airflow nozzle; 6. Dust collection suction head; 7. Flexible conduit two; 8. Dust collection tank; 9. Top cover; 10. Top cover handle. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0023] like Figures 1 to 4 As shown, an aerospace equipment surface sandblasting treatment device includes a sandblasting storage tank 1, a dust collection tank 8, an isolation cover 4, and also includes a sandblasting assembly connected to the sandblasting storage tank 1 and a flow diversion assembly that cooperates with the sandblasting assembly.

[0024] The sandblasting assembly includes a flexible conduit 2 connected to the sandblasting storage tank 1 and a sandblasting head 3 connected to the flexible conduit 2;

[0025] The diversion assembly includes a purge nozzle 5, a dust collection nozzle 6, and a flexible conduit 7 connected to the dust collection nozzle 6, all housed within the isolation cover 4. The flexible conduit 7 is connected to the dust collection tank 8. The sandblasting head 3 is connected to the isolation cover 4. The isolation cover 4 consists of a rigid metal frame and a bottom rubber pad. The rigid metal frame has openings on its left and right sides for connecting the purge nozzle 5 and the dust collection nozzle 6, respectively.

[0026] The sandblasting storage tank 1 is provided with an upper cover 9, and the upper cover 9 is provided with an upper cover handle 10 for easy disassembly and storage of sand particles. The bottom of the sandblasting storage tank 1 has an opening and is fixedly connected to a flexible conduit 2 for sand discharge.

[0027] The outlet of the sandblasting head 3 is a sand outlet 34 with a trumpet-shaped cross-section. The top of the sandblasting head 3 is provided with a bent sand outlet guide 33, which is parallel to the surface of the equipment, making full use of space and facilitating installation by construction personnel.

[0028] The sand outlet 34 and the sand outlet guide tube 33 are fixed by two rubber pads 31 and two screw-on positioning rings 32. The screw-on positioning rings 32 are screwed and fixed to the external threaded pipe, which can realize the fine adjustment of the sandblasting height.

[0029] By screwing the positioning ring 32 to the external threaded pipe, the sandblasting height can be adjusted, which facilitates the control of surface roughness and sandblasting range. The screw-on positioning design is simple and easy to operate.

[0030] When used for sandblasting treatment of aircraft equipment surfaces, the sandblasting height is determined by adjusting the screw-on positioning ring 32. The isolation cover 4 is placed on the surface of the equipment to be treated and sealed and fixed with tape or adhesive strips. After connecting the flexible conduit 1 2 and the flexible conduit 2 7, the sandblasting task is performed. This device avoids the complicated protective work before sandblasting in narrow areas, realizes the rapid execution of the sandblasting process, saves a lot of manual work, and has an ideal effect on ensuring the mission cycle.

[0031] The purge nozzle 5 includes a compressed airflow duct 51 located on the left side and a split pipe 52 fixedly connected to the middle of the compressed airflow duct 51.

[0032] The right surface of the diversion pipe 52 is fixedly connected to an airflow nozzle 53 arranged at equal intervals. The distance between the airflow nozzles 53 is 10mm-20mm, and the compressed airflow is ≤0.1MPa, which can blow away large sand particles.

[0033] The dust collection head 6 has a large, flat, trumpet-shaped opening on its left side, and negative pressure is provided by the dust collection tank 8.

[0034] The blowing nozzle 5 blows away sand particles, which are then sucked in by the dust collection nozzle 6 without affecting the construction environment.

[0035] The rigid isolation cover 4 consists of a rigid metal frame and a bottom rubber pad. The bottom flexible pad fits into the equipment surface to form a closed sandblasting area, preventing sand particles from splashing and forming excess material in the inner cavity. It eliminates the need for manual adhesive tape protection, saving time and effort and making it easy to implement.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for sandblasting the surface of an aircraft equipment, comprising a sandblasting tank (1), a dust collection tank (8), a separation hood (4), characterized in that: It also includes a sandblasting assembly connected to the sandblasting storage tank (1) and a flow diversion assembly that works in conjunction with the sandblasting assembly; The sandblasting assembly includes a flexible conduit (2) connected to the sandblasting storage tank (1) and a sandblasting head (3) connected to the flexible conduit (2); The diversion assembly includes a purge nozzle (5) disposed inside the isolation cover (4), a dust collection nozzle (6), and a flexible conduit (7) connected to the dust collection nozzle (6), wherein the flexible conduit (7) is connected to the dust collection tank (8).

2. An aircraft equipment surface sandblasting device according to claim 1, characterized in that: The sandblasting storage tank (1) is provided with a top cover (9) and a top cover handle (10) is provided on the top cover (9).

3. An aircraft equipment surface sandblasting device according to claim 1, characterized in that: The outlet of the sandblasting head (3) is a sand outlet (34), and the cross-section is set in the shape of a trumpet. The top of the sandblasting head (3) is provided with a bent sand outlet guide (33), which is parallel to the surface of the equipment.

4. An aircraft equipment surface sandblasting device according to claim 3, characterized in that: The sand outlet (34) and the sand outlet guide tube (33) are fixed by two rubber pads (31) and two screw-on positioning rings (32).

5. An aircraft equipment surface sandblasting device according to claim 1, characterized in that: The purge nozzle (5) includes a compressed air duct (51) located on the left side and a split pipe (52) fixedly connected to the middle of the compressed air duct (51).

6. The surface sandblasting treatment device for aviation equipment according to claim 5, characterized in that: The right surface of the diverter (52) is fixedly connected to an equidistantly arranged airflow nozzle (53), the distance between the airflow nozzles (53) is 10mm-20mm, and the compressed airflow is ≤0.1MPa.

7. An aircraft equipment surface sandblasting device according to claim 1, characterized in that: The dust collection nozzle (6) is configured with a large, flat, trumpet-shaped opening on the left side.

8. An aircraft equipment surface sandblasting device according to claim 1, characterized in that: The isolation cover (4) consists of a rigid metal frame and a bottom rubber pad.

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