Environment-friendly dust protection mechanism for shot blasting machine
By designing a detachable screen assembly, the problem of easy damage to the shot blasting machine screen was solved, enabling convenient disassembly and cleaning, and improving the separation effect and resource recycling efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
The existing shot blasting machine screens are fixedly installed. After a period of use, they are easily worn by steel shot and hard impurities, resulting in screen damage and inconvenience in disassembly and replacement, which affects the separation effect of steel shot and oxide scale and recycling.
A detachable screen assembly was designed, including a fixed frame, a movable component, and a limiting component. The screen can be easily disassembled and assembled using an auxiliary handle and a connecting rod, avoiding the use of complicated tools.
It enables convenient disassembly and cleaning of the screen, extends the service life of the screen, improves the separation effect of steel shot and oxide scale, and promotes the recycling of resources.
Smart Images

Figure CN224074139U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmentally friendly shot blasting machine technology, and in particular to a dust protection mechanism for an environmentally friendly shot blasting machine. Background Technology
[0002] A shot blasting machine is a machine that uses a high-speed rotating impeller or centrifugal disc to propel steel shot, steel grit, or other projectile materials onto the surface of a workpiece at high speed. Through impact and friction, it removes impurities such as oxide scale, rust, oil stains, and old paint layers from the workpiece surface. At the same time, it creates a certain degree of roughness on the workpiece surface, enhances coating adhesion, and improves fatigue strength and corrosion resistance.
[0003] The structure of the shot blasting machine and its dust protection mechanism can be referenced from the utility model patent application "CN221065935U" which discloses "an environmentally friendly shot blasting method for surface treatment". The shot blasting process involves using a shot blaster to treat the workpiece. After treatment, a suction fan is activated, drawing the dust from the treatment chamber into a dust collection chamber. Simultaneously, some dust settles and falls, while oxide scale, steel shot, and some dust fall onto the screen due to gravity. Smaller dust particles fall through the screen into the dust collection chamber below it. Oxide scale falls onto the screen, and steel shot rolls on the screen to the lowest point. The steel shot accumulates around the movable cylinder. When the cylinder is activated, it rises, causing the movable cylinder to rise as well. The steel shot accumulated around the movable cylinder passes through multiple slots on the side wall of the movable cylinder and enters the interior of the movable cylinder, falling onto the bottom plate of the collection chamber. Due to the inclined bottom plate, the steel shot rolls to the lower side and enters the cleaning device through the connection port on the inner wall of the collection chamber on that side for cleaning. This solves the technical problem of separating the oxide scale that is difficult to remove from the workpiece surface from the steel shot, resulting in poor separation effect, which is not conducive to subsequent recycling and reuse, and is not conducive to classifying the shot between large metal fragments and steel shot.
[0004] However, the above-mentioned screen is a fixed installation. After a period of use, the steel shot rolls on the screen and continuously rubs against the screen surface. Especially when the steel shot contains hard impurities (such as large particles of oxide scale), the screen is easily scratched or worn. When the screen is damaged, it is not convenient to disassemble and replace it. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an environmentally friendly dust protection mechanism for shot blasting machines.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An environmentally friendly dust protection mechanism for shot blasting machines includes a shot blasting machine body. The shot blasting machine body includes a cleaning box. Multiple fixed columns are symmetrically arranged at equal intervals on both sides of the top of the cleaning box. A detachable screen assembly is inserted into the top of the cleaning box. The screen assembly includes a screen body. A fixed frame is fixedly installed on the outside of the screen body. Movable components are slidably arranged on both sides of the fixed frame at the corresponding fixed columns. Auxiliary connecting rods are symmetrically installed on both sides between the multiple movable components. Limiting components are inserted into the top of the fixed frame at the movable components.
[0008] Furthermore, in a preferred configuration, the movable component includes a movable plate, a movable insert rod is mounted on one side of the movable plate, and an auxiliary insertion hole is provided through the fixed column at the location of the movable insert rod.
[0009] In addition, a preferred structure is that an auxiliary handle is fixedly installed on the top of the movable component at one end of the fixed frame, and a sliding groove is provided in the fixed frame at both the auxiliary handle and the movable component.
[0010] In addition, a preferred structure is that the limiting component includes a fixing plate, with limiting blocks installed at the bottom of the fixing plate at the corresponding fixing posts, and auxiliary rods symmetrically installed on both sides of the limiting blocks at the bottom of the fixing plate.
[0011] In addition, a preferred structure is that an auxiliary insert is installed at the bottom of the fixed plate at the groove of the auxiliary handle, and a fixed handle is fixedly installed at the top center of the fixed plate.
[0012] Furthermore, in a preferred configuration, the movable insert has a through hole at the auxiliary insert, the fixed frame has a locking through hole at the fixed post, and the fixed frame has limit slots on both sides of the locking through hole and at the auxiliary insert.
[0013] The beneficial effects of this utility model are as follows:
[0014] In this invention, by making the screen assembly detachable, the screen assembly can be disassembled and cleaned after the shot blasting machine has been used for a period of time. The entire disassembly and assembly process is convenient and does not require the use of complicated tools. Attached Figure Description
[0015] Figure 1 This is a partial structural diagram of the shot blasting machine body;
[0016] Figure 2 A structural diagram showing the disassembled body, screen assembly, and limit assembly of the shot blasting machine;
[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0018] Figure 4 This is a structural schematic diagram of the cross-section of the screen assembly;
[0019] Figure 5 for Figure 4 Enlarged structural diagram at point B;
[0020] Figure 6 This is a schematic diagram of the limit component.
[0021] In the diagram: 1. Shot blasting machine body; 2. Screen assembly; 21. Fixed frame; 22. Screen body; 23. Movable assembly; 231. Movable plate; 232. Movable insert rod; 233. Auxiliary connecting rod; 234. Auxiliary handle; 3. Limiting assembly; 31. Fixed plate; 32. Limiting block; 33. Auxiliary insert rod; 34. Fixed handle; 4. Fixed column. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-6 An environmentally friendly dust protection mechanism for shot blasting machines includes a shot blasting machine body 1. The shot blasting machine body 1 includes a cleaning box. Multiple fixed posts 4 are symmetrically arranged at equal distances on both sides of the top of the cleaning box. A detachable screen assembly 2 is inserted into the top of the cleaning box. The screen assembly 2 includes a screen body 22. A fixed frame 21 is fixedly installed on the outside of the screen body 22. Movable components 23 are slidably arranged on both sides of the fixed frame 21 at the corresponding fixed posts 4. Auxiliary connecting rods 233 are symmetrically installed on both sides between the multiple movable components 23. Limiting components 3 are inserted into the top of the fixed frame 21 at the movable components.
[0024] Of particular note is the accompanying drawing in the instruction manual. Figure 1 This is only a partial structural diagram of the shot blasting machine body 1. The specific structure, connection method and working principle of the shot blasting machine body 1, cleaning box and screen body are all based on the utility model disclosed in the authorized announcement number "CN221065935U" as "an environmentally friendly shot blasting for surface treatment". Therefore, this utility model will not elaborate further.
[0025] Meanwhile, the movable component 23 includes a movable plate 231, a movable plug rod 232 is installed on one side of the movable plate 231, and an auxiliary plug hole is provided through the fixed post 4 at the movable plug rod 232.
[0026] Meanwhile, an auxiliary handle 234 is fixedly installed on the top of the movable component 23 at one end of the fixed frame 21, and a sliding groove is provided inside the fixed frame 21 at both the auxiliary handle 234 and the movable component 23.
[0027] Furthermore, the limiting component 3 includes a fixing plate 31, with limiting blocks 32 installed at the bottom of the fixing plate 31 at the corresponding fixing post 4, and auxiliary rods 33 symmetrically installed on both sides of the limiting blocks 32 at the bottom of the fixing plate 31.
[0028] Furthermore, an auxiliary insert is installed at the bottom of the fixed plate 31 at the groove of the auxiliary handle part 234, and a fixed handle part 34 is fixedly installed at the top center of the fixed plate 31.
[0029] Furthermore, the movable insert rod 232 has a through hole at the auxiliary insert rod 33, and the fixed frame 21 has a locking through hole at the fixed post 4. The fixed frame 21 also has limit slots on both sides of the locking through hole and at the auxiliary insert rod 33.
[0030] It is also worth noting that the top of each fixed frame has an inclined surface facing the screen body.
[0031] In this embodiment, the movable components of the screen assembly 2 are moved by holding the auxiliary handle 234. Since multiple movable components are connected by the auxiliary connecting rod 233, when the movable component on one side of the auxiliary handle 234 moves, all movable components move synchronously and their movable insert rod 232 moves away from the locking through hole.
[0032] Then, insert the screen assembly 2 into the cleaning box and insert its fixing post 4 into the locking through hole. Then, hold the auxiliary handle 234 to move the movable component of the screen assembly 2 and insert its movable rod 232 into the auxiliary plug of the fixing post 4. Then, insert the limiting component 3 into the fixing frame 21 to complete the installation of the screen assembly 2.
[0033] In this invention, by making the screen assembly 2 detachable, the screen assembly 2 can be disassembled and cleaned after the shot blasting machine has been used for a period of time. The entire disassembly and assembly process is convenient and does not require the use of complicated tools.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An environmentally friendly dust protection mechanism for a shot blasting machine, comprising a shot blasting machine body (1), characterized in that, The shot blasting machine body (1) includes a cleaning box, a plurality of fixed columns (4) are symmetrically arranged at equal distances on both sides of the top end of the cleaning box, a detachable screen assembly (2) is inserted into the top end of the cleaning box, and the screen assembly (2) includes a screen body (22), a fixed frame (21) is fixedly installed outside the screen body (22), movable assemblies (23) are slidingly arranged at both sides in the fixed frame (21) and located at corresponding fixed columns (4), auxiliary connecting rods (233) are symmetrically installed at both sides between the movable assemblies (23), and limit assemblies (3) are inserted into the top end of the fixed frame (21) and located at the movable assemblies.
2. The dust protection mechanism for an environmentally friendly shot blasting machine according to claim 1, characterized in that, The movable assembly (23) includes a movable plate (231), and an movable insertion rod (232) is installed on one side of the movable plate (231), and an auxiliary insertion hole is formed through the movable insertion rod (232) in the fixed column (4).
3. The dust protection mechanism for an environmentally friendly shot blasting machine according to claim 1, characterized in that, The top of the movable assembly (23) at one end of the fixed frame (21) is fixedly installed with an auxiliary handle part (234), and a sliding groove is formed in the fixed frame (21) and located at the auxiliary handle part (234) and the movable assembly (23).
4. The dust protection mechanism for an environmentally friendly shot blasting machine according to claim 1, characterized in that, The limit assembly (3) includes a fixed plate (31), limit insertion blocks (32) are installed at the bottom of the fixed plate (31) and located at corresponding fixed columns (4), and auxiliary insertion rods (33) are symmetrically installed at the bottom of the fixed plate (31) and located at both sides of the limit insertion blocks (32).
5. The dust protection mechanism for an environmentally friendly shot blasting machine according to claim 4, characterized in that, An auxiliary insertion block is installed at the sliding groove of the auxiliary handle part (234) at the bottom of the fixed plate (31), and a fixed handle part (34) is fixedly installed at the top end of the fixed plate (31).
6. The dust protection mechanism for an environmentally friendly shot blasting machine according to claim 2, characterized in that, A through hole is formed through the movable insertion rod (232) and located at the auxiliary insertion rod (33), a clamping through hole is formed in the fixed frame (21) and located at the fixed column (4), and a limit insertion slot is formed in the fixed frame (21) and located at both sides of the clamping through hole and at the auxiliary insertion rod (33).
Citation Information
Patent Citations
Environment-friendly shot blasting machine for surface treatment
CN221065935U