A dust suction port sealing connection structure of a stone polishing machine
By adopting a combination structure of outer and inner connecting rings on the stone grinding machine, and utilizing designs such as sealing rings and retaining rods, the problem of poor sealing of the dust suction port is solved, achieving a tight connection and stable assembly of the dust suction pipe and dust suction hood.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MACHENG MINNAN STONE IND CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-24
AI Technical Summary
On the dust inlet of the stone grinding machine, the dust hood and the dust suction pipe are installed with clips, which have poor sealing effect and are easy to loosen.
The system employs a combination of outer and inner connecting rings, secured with assembly rings and bolts. Through the cooperation of the outer and inner sealing rings, along with structures such as compression rings, retaining rods, and limiting rings, a tight connection between the suction pipe and the suction hood is achieved.
It effectively prevents air leakage, ensures a good seal between the suction pipe and the suction hood, has a simple locking structure, is easy to operate, and has good assembly stability.
Smart Images

Figure CN224551038U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stone processing technology, specifically relating to a dust suction port sealing connection structure for a stone grinding machine. Background Technology
[0002] Stone processing involves various steps, including sawing, cutting, grinding, drilling, and carving. For slab processing, sawing is the primary method. Based on different processing techniques, stone can be categorized into shaped products (including carvings, curved slabs, hollow columns, solid columns, moldings, and mosaics) and slab products (including large slabs, standard slabs, and thin slabs). According to the application, it can be divided into indoor stone and outdoor stone; wall and facade stone and floor stone; architectural stone such as bridge piers; and decorative stone such as various facing panels. Facing panel processing mainly refers to the processing of marble and granite facing panels, which can be further divided into standard marble slabs, standard granite slabs, thin marble slabs, thin granite slabs, and roughened marble or granite slabs. Slate processing is also included in this category. There are many methods for surface treatment of stone, which can be tailored to the user's actual needs or to meet current architectural and decorative pursuits for naturalness, antiquity, and practical effectiveness.
[0003] During the stone grinding process, in order to avoid the splashing of stone chips, a dust collection mechanism is installed on the stone grinding machine to absorb the chips. However, the dust collection hood and the dust collection pipe on the dust collection port of the stone grinding machine are directly installed by a buckle, which has a poor sealing effect and the buckle is easy to loosen. Therefore, we propose a sealing connection structure for the dust collection port of a food grinding machine. Utility Model Content
[0004] The purpose of this utility model is to provide a sealing connection structure for the dust inlet of a stone grinding machine, so as to solve the problem mentioned in the background art that the dust hood and the dust pipe on the dust inlet of the stone grinding machine are directly installed by a buckle, resulting in poor sealing effect and easy loosening of the buckle installation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust suction port sealing connection structure for a stone grinding machine, comprising an outer connecting ring and an inner connecting ring. The outer connecting ring is sleeved on the outer surface of the inner connecting ring. An assembly ring is fixedly installed at the end of both the outer connecting ring and the end of the inner connecting ring. Several assembly bolts are threaded onto the assembly ring. Two sealing grooves are formed on the inner wall of the outer connecting ring, and an outer sealing ring is embedded in the sealing grooves. Two sealing grooves are formed on the outer surface of the inner connecting ring, and an inner sealing ring is embedded in the sealing grooves. The outer and inner sealing rings are arranged in a relatively close fit. Several mounting shells are fixedly installed on the outer surface of the outer connecting ring. A retaining rod is slidably installed on the mounting shell. An operating plate is fixedly installed at one end of the retaining rod. A through hole for the retaining rod to pass through is formed on the outer connecting ring. A retaining groove for the retaining rod to be inserted is formed on the outer surface of the inner connecting ring.
[0006] Using the above solution, an outer connecting ring and an inner connecting ring are used together. The outer connecting ring and the inner connecting ring are assembled with the suction pipe and the suction hood respectively through assembly rings and assembly bolts. The outer sealing ring and the inner sealing ring can ensure a good seal between the outer connecting ring and the inner connecting ring, and are reinforced by compression sealing with the compression ring. This ensures a good seal between the suction pipe and the suction hood and effectively prevents air leakage.
[0007] The dust inlet sealing connection structure of this stone grinding machine uses a retaining rod and a limiting ring in conjunction with a spring. After the outer and inner connecting rings are inserted, the retaining rod is inserted into the retaining groove to achieve locking. The locking structure is simple, easy to operate, and ensures good assembly stability.
[0008] In a preferred embodiment, a stop ring is fixedly installed on the inner wall of the outer connecting ring and the outer surface of the inner connecting ring. The outer connecting ring and the inner connecting ring are fitted with the stop ring at the corresponding position. A compression ring is fixedly installed on the side of the stop ring. The two compression rings are respectively fitted with the surface of the outer sealing ring and the surface of the inner sealing ring at the corresponding position.
[0009] By using the above solution, the positioning ring can be used to stop the alignment of the outer and inner connecting rings, improving the ease of assembly. Combined with the compression ring, the outer and inner sealing rings are compressed, thereby ensuring that the outer and inner sealing rings fit more tightly.
[0010] In a preferred embodiment, a plurality of alignment plates are fixedly installed on the side of the stop ring on the inner connecting ring, and a plurality of alignment slots are opened on the surface of the outer connecting ring, wherein the alignment plates and alignment slots are used in conjunction.
[0011] By using the above solution, the alignment plate and alignment slot can be used together to ensure precise alignment of the outer and inner connecting rings during assembly, allowing the retaining rod to be accurately inserted into the retaining groove.
[0012] In a preferred embodiment, an anti-slip pad is attached to the side of the assembly ring, and the anti-slip pad has a circular hole for the assembly bolt to pass through.
[0013] By adopting the above solution, the anti-slip pads can ensure that the outer and inner connecting rings have good anti-slip properties during installation, thus preventing misalignment and loosening.
[0014] In a preferred embodiment, a spring is fixedly installed on the inner wall of the mounting shell, and a limit ring is fixedly installed at the end of the spring. The limit ring is fixedly installed on the outer surface of the retaining rod.
[0015] Using the above solution, the limiting ring is used in conjunction with the spring. The spring force can drive the retaining rod to quickly insert into the retaining groove, and the limiting ring can prevent the retaining rod from sliding off the mounting shell, thus achieving a good limiting effect.
[0016] In a preferred embodiment, the limiting ring has an opening, and a limiting block that cooperates with the opening is fixedly installed on the inner wall of the mounting shell.
[0017] By using the above solution, the limiting block is used in conjunction with the opening. When the retaining rod is disengaged from the retaining groove, the limiting ring will move to the other side of the limiting block through the opening and rotate the retaining rod to make the opening misalign with the limiting block. This can prevent the retaining rod from accidentally resetting and improve the convenience and stability of operation.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] The dust suction port sealing connection structure of this stone grinding machine uses an outer connecting ring and an inner connecting ring for joint use. The outer connecting ring and the inner connecting ring are assembled with the dust suction pipe and the dust suction hood respectively by assembly rings and assembly bolts. The outer sealing ring and the inner sealing ring can ensure a good seal between the outer and inner connecting rings, and are reinforced by a compression ring for a stronger compression seal, thereby ensuring a good seal between the dust suction pipe and the dust suction hood and effectively preventing air leakage.
[0020] The dust inlet sealing connection structure of this stone grinding machine uses a retaining rod and a limiting ring in conjunction with a spring. After the outer and inner connecting rings are inserted, the retaining rod is inserted into the retaining groove to achieve locking. The locking structure is simple, easy to operate, and ensures good assembly stability. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0023] Figure 3 This is a structural schematic diagram of the cross-section of the mounting shell of this utility model;
[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0025] In the diagram: 1. Outer connecting ring; 2. Inner connecting ring; 3. Assembly ring; 4. Assembly bolt; 5. Outer sealing ring; 6. Inner sealing ring; 7. Stop ring; 8. Extrusion ring; 9. Alignment plate; 10. Mounting shell; 11. Fixing rod; 12. Operating plate; 13. Limiting ring; 14. Spring; 15. Limiting block; 16. Anti-slip pad. Detailed Implementation
[0026] Please see Figure 1-4 This utility model provides a dust suction port sealing connection structure for a stone grinding machine, including an outer connecting ring 1 and an inner connecting ring 2. The outer connecting ring 1 is sleeved on the outer surface of the inner connecting ring 2. An assembly ring 3 is fixedly installed at the end of both the outer connecting ring 1 and the end of the inner connecting ring 2. Several assembly bolts 4 are threaded on the assembly ring 3. Two sealing grooves are opened on the inner wall of the outer connecting ring 1, and an outer sealing ring 5 is embedded in the sealing groove 1. Two sealing grooves are opened on the outer surface of the inner connecting ring 2, and an inner sealing ring 6 is embedded in the sealing groove 2. The outer sealing ring 5 and the inner sealing ring 6 are arranged in a relatively close fit. Several mounting shells 10 are fixedly installed on the outer surface of the outer connecting ring 1. A retaining rod 11 is slidably installed on the mounting shell 10. An operating plate 12 is fixedly installed at one end of the retaining rod 11. A through hole for the retaining rod 11 to pass through is opened on the outer connecting ring 1. A retaining groove for the retaining rod 11 to be inserted is opened on the outer surface of the inner connecting ring 2.
[0027] The outer connecting ring 1 and the inner connecting ring 2 are used together. The outer connecting ring 1 and the inner connecting ring 2 are assembled with the suction pipe and the suction hood respectively by the assembly ring 3 and the assembly bolt 4. The outer sealing ring 5 and the inner sealing ring 6 can ensure a good seal between the outer connecting ring 1 and the inner connecting ring 2, and are reinforced by the compression ring 8. This ensures a good seal between the suction pipe and the suction hood and effectively prevents air leakage. The retaining rod 11 and the limiting ring 13 are used in conjunction with the spring 14. After the outer connecting ring 1 and the inner connecting ring 2 are inserted, the retaining rod 11 is inserted into the retaining groove to achieve locking. The locking structure is simple, easy to operate, and ensures good assembly stability.
[0028] A stop ring 7 is fixedly installed on the inner wall of the outer connecting ring 1 and the outer surface of the inner connecting ring 2. The outer connecting ring 1 and the inner connecting ring 2 are fitted with the stop ring 7 at the corresponding positions. A compression ring 8 is fixedly installed on the side of the stop ring 7. The two compression rings 8 are respectively fitted with the surface of the outer sealing ring 5 and the surface of the inner sealing ring 6 at the corresponding positions. The stop ring 7 can be used to stop the alignment and insertion of the outer connecting ring 1 and the inner connecting ring 2, improving the ease of assembly. The compression rings 8 are used to compress the outer sealing ring 5 and the inner sealing ring 6, thereby ensuring that the outer sealing ring 5 and the inner sealing ring 6 can fit more tightly.
[0029] Several alignment plates 9 are fixedly installed on the side of the stop ring 7 on the inner connecting ring 2, and several alignment slots are opened on the surface of the outer connecting ring 1. The alignment plates 9 and the alignment slots are used together. By using the alignment plates 9 and the alignment slots together, the outer connecting ring 1 and the inner connecting ring 2 can be accurately aligned when assembled, so that the retaining rod 11 can be accurately inserted into the retaining groove.
[0030] An anti-slip pad 16 is attached to the side of the assembly ring 3. The anti-slip pad 16 has a round hole for the assembly bolt 4 to pass through. The anti-slip pad 16 can ensure that the outer connecting ring 1 and the inner connecting ring 2 have good anti-slip properties during installation, and avoid installation misalignment and loosening.
[0031] A spring 14 is fixedly installed on the inner wall of the mounting shell 10. A limit ring 13 is fixedly installed on the end of the spring 14. The limit ring 13 is fixedly installed on the outer surface of the retaining rod 11. The limit ring 13 works in conjunction with the spring 14. The elastic force of the spring 14 can drive the retaining rod 11 to quickly insert into the retaining groove. The limit ring 13 can prevent the retaining rod 11 from sliding off the mounting shell 10, thus achieving a good limiting effect.
[0032] The limiting ring 13 has an opening, and the inner wall of the mounting shell 10 is fixedly installed with a limiting block 15 that cooperates with the opening. When the retaining rod 11 is disengaged from the retaining groove, the limiting ring 13 will move to the other side of the limiting block 15 through the opening and rotate the retaining rod 11 to make the opening and the limiting block 15 misaligned. This can prevent the retaining rod 11 from accidentally resetting, and improve the convenience and stability of operation.
[0033] In use, the outer connecting ring 1 and the inner connecting ring 2 are assembled with the suction pipe and the suction hood respectively through the assembly ring 3 and the assembly bolt 4. First, pull the operating plate 12 to drive the retaining rod 11 to move. The movement of the retaining rod 11 drives the limiting ring 13 to move. The limiting ring 13 compresses the spring 14 and deforms. The limiting ring 13 moves through the opening to the other side of the limiting block 15. Then, rotate the retaining rod 11 so that the opening is misaligned with the limiting block 15. At this time, the retaining rod 11 can be prevented from resetting. Then, insert the outer connecting ring 1 and the inner connecting ring 2 into the slot. When inserting, the compression ring 8 will compress the corresponding outer sealing ring 5 and inner sealing ring 6. At the same time, the alignment plate 9 is inserted into the alignment slot. After the insertion is complete, rotate the retaining rod 11 to make the opening face the limiting block 15. At this time, the elastic force of the spring 14 will drive the retaining rod 11 to insert into the retaining groove, completing the assembly and locking of the outer connecting ring 1 and the inner connecting ring 2. At this time, the outer sealing ring 5 and the inner sealing ring 6 can ensure a good seal between the outer connecting ring 1 and the inner connecting ring 2.
Claims
1. A sealing connection structure for the dust suction port of a stone grinding machine, characterized in that: The device includes an outer connecting ring (1) and an inner connecting ring (2). The outer connecting ring (1) is fitted onto the outer surface of the inner connecting ring (2). An assembly ring (3) is fixedly installed at the end of both the outer connecting ring (1) and the end of the inner connecting ring (2). Several assembly bolts (4) are threaded onto the assembly ring (3). The inner wall of the outer connecting ring (1) has two sealing grooves, and an outer sealing ring (5) is embedded in the sealing grooves. The outer surface of the inner connecting ring (2) has two sealing grooves, and the sealing grooves are embedded in the sealing grooves. An inner sealing ring (6) is embedded, and the outer sealing ring (5) and the inner sealing ring (6) are arranged in a relatively close fit. Several mounting shells (10) are fixedly installed on the outer surface of the outer connecting ring (1). A retaining rod (11) is slidably installed on the mounting shell (10). An operating plate (12) is fixedly installed at one end of the retaining rod (11). A through hole is opened on the outer connecting ring (1) for the retaining rod (11) to pass through. A retaining groove is opened on the outer surface of the inner connecting ring (2) for the retaining rod (11) to be inserted.
2. The dust suction port sealing connection structure of the stone grinding machine according to claim 1, characterized in that: A stop ring (7) is fixedly installed on the inner wall of the outer connecting ring (1) and the outer surface of the inner connecting ring (2). The outer connecting ring (1) and the inner connecting ring (2) are both fitted with the stop ring (7) at the corresponding position. A compression ring (8) is fixedly installed on the side of the stop ring (7). The two compression rings (8) are respectively fitted with the surface of the outer sealing ring (5) and the surface of the inner sealing ring (6) at the corresponding position.
3. The dust suction port sealing connection structure of the stone grinding machine according to claim 1, characterized in that: The inner connecting ring (2) has several alignment plates (9) fixedly installed on the side of the stop ring (7), and the outer connecting ring (1) has several alignment slots. The alignment plates (9) and alignment slots are used together.
4. The dust inlet sealing connection structure of the stone grinding machine according to claim 1, characterized in that: The side of the assembly ring (3) is attached with an anti-slip pad (16), and the anti-slip pad (16) has a round hole for the assembly bolt (4) to pass through.
5. The dust suction port sealing connection structure of the stone grinding machine according to claim 1, characterized in that: A spring (14) is fixedly installed on the inner wall of the mounting shell (10), and a limit ring (13) is fixedly installed at the end of the spring (14). The limit ring (13) is fixedly installed on the outer surface of the retaining rod (11).
6. The dust suction port sealing connection structure of the stone grinding machine according to claim 5, characterized in that: An opening is provided on the limiting ring (13), and a limiting block (15) that cooperates with the opening is fixedly installed on the inner wall of the mounting shell (10).