A blasting protection device for surface treatment of hardware products
Patent Information
- Application Number
- CN202522087701.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-28
AI Technical Summary
[0002]喷砂是五金产品表面处理常用的一种方式,然而砂砾喷出的速度极高需要防护罩用以保障工作人员的安全,传统的喷砂防护装置观察窗常因砂砾冲击快速磨损模糊,需频繁停机清洁或更换,影响作业连续性,单层玻璃或普通亚克力材质易刮花破裂,存在安全隐患,因此急需一种五金产品表面处理喷砂防护装置来解决上述问题
[0013] This invention significantly improves the durability and clarity of the observation window during sandblasting operations through the synergistic design of air curtain protection and double-layer glass. The air curtain formed by the air outlet groove at the bottom of the exhaust plate effectively blocks flying sand and gravel, reducing the impact and wear of the inner glass. The double-layer structure of the outer high-transparency tempered glass and the inner polycarbonate coated glass balances impact resistance and light transmission, extending the life of the observation window. The modular plug-in design enables quick glass replacement.
Smart Images

Figure CN224659140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware processing, specifically to a sandblasting protection device for surface treatment of hardware products. Background Technology
[0002] Sandblasting is a common surface treatment method for hardware products. However, the sand and gravel are sprayed at extremely high speeds, requiring protective covers to ensure the safety of workers. The observation windows of traditional sandblasting protective devices often wear out quickly due to the impact of sand and gravel, requiring frequent shutdowns for cleaning or replacement, which affects the continuity of operations. Single-layer glass or ordinary acrylic materials are easily scratched and cracked, posing safety hazards. Therefore, there is an urgent need for a sandblasting protective device for surface treatment of hardware products to solve the above problems. Utility Model Content
[0003] The purpose of this utility model is to provide a sandblasting protection device for the surface treatment of hardware products, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a surface treatment sandblasting protective device for hardware products, comprising a protective main body and an observation device. The observation device is fixedly installed on the protective main body. The protective main body includes a protective outer frame. The front top of the protective outer frame has a beveled surface, and an observation window is formed through the beveled surface. An air pump is fixedly installed at the top of the protective outer frame. A conveying pipe is fixedly installed at the inner top of the protective outer frame near the beveled surface. The conveying pipe is fixedly installed at the output end of the air pump via an elbow. An exhaust plate is fixedly connected to the middle of the bottom end of the conveying pipe. An air outlet groove is formed through the bottom end of the exhaust plate, and the air outlet groove communicates with the inner side of the conveying pipe. The observation device includes a fixed outer frame, and an outer glass layer and an inner glass layer are movably connected to the inner side of the fixed outer frame.
[0005] Preferably, a door is rotatably installed on one side of the protective frame via a hinge, and a bolt is rotatably connected to the outside of the door. Two magnets are fixedly installed on the outside of the bolt's locking plate.
[0006] Preferably, a clip is fixedly connected to the side of the protective frame near the door, and the position of the clip matches the bolt. The locking plate of the bolt is movably engaged with the inside of the clip, and the magnet and the clip are magnetically connected.
[0007] Preferably, two protective gloves are symmetrically fixedly installed on the front side of the protective frame.
[0008] Preferably, the bottom end of the fixed outer frame is fixedly connected to an inner frame, and the inner side of the fixed outer frame is provided with a first insertion slot and a second insertion slot. The outer glass is movably inserted into the inner side of the first insertion slot, and the inner glass is movably inserted into the inner side of the second insertion slot.
[0009] Preferably, a fixing plate is fixedly installed at each end of the fixed outer frame, and a rubber pad is fixedly installed on the inner side of the fixing plate. The rubber pad is in contact with the two ends of the first insertion slot and the second insertion slot respectively.
[0010] Preferably, the fixed outer frame is fixedly installed on the outside of the beveled surface, and the inner frame is nested inside the beveled surface.
[0011] Preferably, the outer glass layer is located above the inner glass layer, the outer glass layer is high-transparency tempered glass, and the inner glass layer is polycarbonate coated tempered glass.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention significantly improves the durability and clarity of the observation window during sandblasting operations through the synergistic design of air curtain protection and double-layer glass. The air curtain formed by the air outlet groove at the bottom of the exhaust plate effectively blocks flying sand and gravel, reducing the impact and wear of the inner glass. The double-layer structure of the outer high-transparency tempered glass and the inner polycarbonate coated glass balances impact resistance and light transmission, extending the life of the observation window. The modular plug-in design enables quick glass replacement. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;
[0015] Figure 2 This is a schematic diagram of the protective main body device in this utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of the protective main body device in this utility model;
[0017] Figure 4 This is a schematic diagram of the inlet conveying pipe section of this utility model;
[0018] Figure 5 This is a schematic diagram of the disassembled structure of the observation device in this utility model.
[0019] In the diagram: 1-Main protective device; 2-Observation device; 3-Outer protective frame; 4-Air pump; 5-Beveled surface; 6-Observation window; 7-Protective gloves; 8-Clamping device; 9-Door; 10-Locking bolt; 11-Magnet; 12-Conveying pipe; 13-Exhaust plate; 14-Exhaust duct; 15-Fixed outer frame; 16-Inner frame; 17-First insertion slot; 18-Second insertion slot; 19-Outer glass; 20-Inner glass; 21-Fixing plate; 22-Rubber pad. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-5 This utility model provides an embodiment of a surface treatment sandblasting protective device for hardware products, including a protective main body device 1 and an observation device 2. The observation device 2 is fixedly installed on the protective main body device 1. The protective main body device 1 includes a protective outer frame 3. The top front side of the protective outer frame 3 is provided with a beveled surface 5. An observation window 6 is opened through the beveled surface 5. An air pump 4 is fixedly installed at the top of the protective outer frame 3. A conveying pipe 12 is fixedly installed at the end of the inner top of the protective outer frame 3 near the beveled surface 5. The conveying pipe 12 is fixedly installed at the output end of the air pump 4 through an elbow. An exhaust plate 13 is fixedly connected to the middle of the bottom end of the conveying pipe 12. An air outlet groove 14 is opened through the bottom end of the exhaust plate 13, and the air outlet groove 14 is connected to the inner side of the conveying pipe 12.
[0022] A door 9 is rotatably mounted on one side of the protective frame 3 via a hinge. A bolt 10 is rotatably connected to the outside of the door 9. Two magnets 11 are fixedly mounted on the outside of the locking plate of the bolt 10. A clip 8 is fixedly connected to the side of the protective frame 3 near the door 9, and the position of the clip 8 matches that of the bolt 10. The locking plate of the bolt 10 is movably engaged with the inside of the clip 8, and the magnets 11 and the clip 8 are magnetically connected. The magnetic connection facilitates the opening and closing of the door 9. At the same time, when the locking plate end of the bolt 10 is engaged with the inside of the clip 8, the magnetic connection between the magnets 11 and the clip 8 makes the bolt 10 more stable. Two protective gloves 7 are symmetrically fixedly mounted on the front side of the protective frame 3.
[0023] The observation device 2 includes a fixed outer frame 15. An outer glass layer 19 and an inner glass layer 20 are movably connected to the inner side of the fixed outer frame 15. An inner frame 16 is fixedly connected to the bottom end of the fixed outer frame 15. A first insertion groove 17 and a second insertion groove 18 are provided on the inner side of the fixed outer frame 15. The outer glass layer 19 is movably inserted into the inner side of the first insertion groove 17, and the inner glass layer 20 is movably inserted into the inner side of the second insertion groove 18. Fixed plates 21 are fixedly installed at both ends of the fixed outer frame 15. Rubber pads 22 are fixedly installed on the inner side of the fixed plates 21. The rubber pads 22 are in contact with the two ends of the first insertion groove 17 and the second insertion groove 18, respectively. The insertion method facilitates the replacement or maintenance of the outer glass layer 19 and the inner glass layer 20, and the connection of the rubber pads 22 reduces the damage caused by the rigid connection.
[0024] The exhaust plate 13 is located at the rear of the observation device 2. The air discharged through the bottom of the exhaust plate 13 forms an air curtain at the rear of the observation device 2. The air curtain blocks and blocks the flying sand and gravel, thereby reducing the amount of sand and gravel that hits the inner glass 20 and extending the service life of the inner glass 20.
[0025] The outer frame 15 is fixedly installed on the outside of the beveled surface 5, and the inner frame 16 is nested inside the beveled surface 5. The outer glass 19 is located above the inner glass 20. The double-glass design improves the safety of the observation area. The outer glass 19 is high-transparency tempered glass, which facilitates observation of the sandblasting inside the protective frame 3. The inner glass 20 is polycarbonate coated tempered glass, which resists abrasive impact and reduces wear rate.
[0026] Working Principle: During operation, the protective frame 3 is first installed in the sandblasting work area, with the sandblasting equipment located inside the protective frame 3. Then, the air pump 4 is turned on. During sandblasting, the locking bolt 10 is rotated by external force, causing the end of the locking bolt 10 near the magnet 11 to rotate upwards and away from the clamp 8. The door 9 is then opened by the locking bolt 10, and the hardware workpiece is placed inside the protective frame 3. The door 9 is then closed, and the locking bolt 10 is rotated again, causing the clamping end of the locking bolt 10 to be attracted to the inside of the clamp 8 by the magnet 11. The worker then performs sandblasting on the hardware workpiece while wearing protective gloves 7. Pump 4 delivers air to the inside of delivery pipe 12 through an elbow. The air inside delivery pipe 12 is discharged vertically downward through air outlet 14. When sand and gravel splashes below exhaust plate 13, they are blown off by the air discharged from air outlet 14, thereby reducing the amount of sand and gravel that impacts the inner glass 20. When the inner glass 20 needs maintenance or replacement, the fixing plates 21 at both ends are removed by external force, and then the inner glass 20 is pushed by external force to move it out from the inside of the second insertion slot 18. After maintenance, or when a new inner glass 20 is inserted into the inside of the second insertion slot 18, the fixing plates 21 are installed and fixed.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A surface treatment sandblasting protective device for hardware products, comprising a protective main body device (1) and an observation device (2), characterized in that: The observation device (2) is fixedly installed on the protective main body device (1). The protective main body device (1) includes a protective outer frame (3). The front top of the protective outer frame (3) is provided with a beveled surface (5). An observation window (6) is provided through the beveled surface (5). An air pump (4) is fixedly installed at the top of the protective outer frame (3). A conveying pipe (12) is fixedly installed at the inner top of the protective outer frame (3) near the beveled surface (5). The pipe (12) is fixedly installed at the output end of the air pump (4) through an elbow. An exhaust plate (13) is fixedly connected to the middle of the bottom end of the delivery pipe (12). An air outlet groove (14) is opened through the bottom end of the exhaust plate (13), and the air outlet groove (14) is connected to the inner side of the delivery pipe (12). The observation device (2) includes a fixed outer frame (15), and an outer glass layer (19) and an inner glass layer (20) are movably connected to the inner side of the fixed outer frame (15).
2. The surface treatment sandblasting protection device for hardware products according to claim 1, characterized in that: A door (9) is rotatably installed on one side of the protective frame (3) via a hinge. A bolt (10) is rotatably connected to the outside of the door (9). Two magnets (11) are fixedly installed on the outside of the latch plate of the bolt (10).
3. The surface treatment sandblasting protection device for hardware products according to claim 2, characterized in that: The protective outer frame (3) is fixedly connected to a clip (8) on the side near the door (9), and the position of the clip (8) matches the bolt (10). The locking plate of the bolt (10) is movably engaged with the inside of the clip (8), and the magnet (11) and the clip (8) are magnetically connected.
4. The surface treatment sandblasting protection device for hardware products according to claim 1, characterized in that: Two protective gloves (7) are symmetrically fixedly installed on the front side of the protective outer frame (3).
5. The surface treatment sandblasting protection device for hardware products according to claim 1, characterized in that: The bottom end of the fixed outer frame (15) is fixedly connected to the inner frame (16). The inner side of the fixed outer frame (15) is provided with a first insertion groove (17) and a second insertion groove (18). The outer glass (19) is movably inserted into the inner side of the first insertion groove (17), and the inner glass (20) is movably inserted into the inner side of the second insertion groove (18).
6. The surface treatment sandblasting protection device for hardware products according to claim 5, characterized in that: Fixed plates (21) are fixedly installed at both ends of the fixed outer frame (15). Rubber pads (22) are fixedly installed on the inner side of the fixed plates (21). The rubber pads (22) are in contact with the two ends of the first insertion groove (17) and the second insertion groove (18).
7. The surface treatment sandblasting protection device for hardware products according to claim 5, characterized in that: The fixed outer frame (15) is fixedly installed on the outside of the oblique surface (5), and the inner frame (16) is nested inside the oblique surface (5).
8. The surface treatment sandblasting protection device for hardware products according to claim 1, characterized in that: The outer glass (19) is located above the inner glass (20). The outer glass (19) is high-transparency tempered glass, and the inner glass (20) is polycarbonate coated tempered glass.