Low-noise aluminum profile cylinder

Abstract

The application provides a low-noise aluminum profile and an air cylinder using the same, and relates to the technical field of aluminum air cylinders.The air cylinder comprises a cylinder body, sealing covers, a piston and a shaft body.The two ends of the cylinder body are sealed by the sealing covers, the piston is located in the cylinder body and separates the cylinder body into two chambers, the shaft body penetrates one of the sealing covers and is connected with the piston, air passages are formed in the sealing covers and communicate with the chambers, a plurality of sound insulation cavities and air guide cavities are arranged on the sealing covers, the air guide cavities are communicated by air pipes which pass through the sound insulation cavities, sound guide holes are formed in the positions of the air pipes passing through the sound insulation cavities, and the sound insulation cavities have sound guide holes on only one air pipe.In the application, when air passes through the air guide cavities, the pressure of the air is released, and the noise in the air is guided into the sound insulation cotton, is isolated by a plurality of sound insulation cottons and a plurality of air holes, and does not flow back in the sound insulation cavities, so that the noise in the air is reduced by being retained or offset through the sound guide holes into the sound insulation cavities.

Description

Technical Field

[0001] This invention relates to the technical field of aluminum profile cylinders, and more particularly to a low-noise aluminum profile cylinder. Background Technology

[0002] Cylinders come in two types: integral and single-cast. Single-cast cylinders are further divided into dry and wet types. When the cylinder and cylinder body are cast as a single unit, it is called an integral cylinder. Common ordinary cylinders mainly consist of a cylinder body, piston, sealing ring, and magnetic ring.

[0003] A typical cylinder consists of an aluminum stamped cylinder body, a piston, and sealing rings. The two ends of the cylinder body are sealed by the sealing rings. The piston divides the space inside the cylinder into two parts. The piston is driven by air pressure between the two parts. The two sealing rings are provided with air passages that communicate with the inside of the cylinder body. When the gas is transported through these passages, the high gas pressure causes regional vibration and noise as the gas rushes out of the cylinder body and into the air passages of the sealing rings. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a low-noise cylinder for aluminum profile machine applications to reduce noise during cylinder operation.

[0005] Based on the technical problems existing in the background art, the present invention proposes a low-noise aluminum profile cylinder, including a cylinder body, a sealing cover, a piston, and a shaft. The two ends of the cylinder body are sealed by the sealing cover. The piston is located in the cylinder body and divides the cylinder body into two chambers. The shaft passes through a sealing cover and is connected to the piston. The sealing cover has an air passage that connects the chambers. The sealing cover is provided with multiple sound insulation chambers and air guide chambers. The air guide chambers are connected by air pipes and the air pipes pass through the sound insulation chambers. The air pipes have sound guide holes at the positions where they pass through the sound insulation chambers. The sound insulation chamber has one and only one air pipe with a sound guide hole.

[0006] Preferably, there are multiple sound insulation chambers and air guide chambers, with two air guide chambers sandwiching the sound insulation chamber in the middle to form a group. One end of the air passage is connected to the chamber, and the other end is connected to the air guide chamber. The multiple air guide chambers are connected to each other through air pipes, and one of the air guide chambers is provided with an air nozzle that is connected to the outside.

[0007] Preferably, both the sound insulation cavity and the air duct cavity are filled with sound insulation cotton.

[0008] Preferably, one of the air guide chambers on the sealing cover is provided with multiple air nozzles, and the air nozzles are connected by an air-gathering ring tube, on which an adapter is installed.

[0009] Preferably, both the airway and the trachea pass through the sound insulation cavity, and the sound guide hole is located only on the part of the airway inside the sound insulation cavity.

[0010] Preferably, the airway has multiple channels.

[0011] Preferably, the trachea has multiple trachea.

[0012] Preferably, the sealing cover has a circular hole that communicates with the chamber, and a circular groove that communicates with the circular hole is opened at one end of the sealing cover near the chamber. A sealing ring is installed on the circular groove, and the sealing ring is sleeved on the shaft and engaged with the circular groove.

[0013] Preferably, both the cylinder block and the shaft are formed by stamping aluminum profiles.

[0014] Compared with existing technologies, the low-noise aluminum profile cylinder proposed in this invention, using the above-mentioned technical solution, achieves the following technical effects:

[0015] In this invention, the gas releases pressure as it passes through the gas-conducting cavity, and simultaneously guides the noise within the gas into the sound-insulating cotton. Sound insulation is achieved through multiple air holes in the sound-insulating cotton. The sound-insulating cavity is not connected to the air passage or air tube, and the gas cannot form a backflow within the sound-insulating cavity, thus preventing gas loss. The noise enters the sound-insulating cavity through the sound-conducting holes and is retained for elimination, thereby reducing gas noise. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal split structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the sealing cap portion of the present invention.

[0020] In the diagram: 1. Cylinder block; 2. Sealing cap; 3. Piston; 4. Shaft; 5. Chamber; 6. Air passage; 21. Sound insulation chamber; 22. Air guide chamber; 7. Air pipe; 10. Sound guide hole; 23. Air nozzle; 9. Sound insulation cotton; 24. Air gathering ring tube; 25. Adapter nozzle; 26. Round hole; 27. Round groove; 8. Sealing ring. Detailed Implementation

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. Example

[0023] Please refer to Figures 1-4 This invention proposes a low-noise aluminum profile cylinder, comprising a cylinder body 1, a sealing cover 2, a piston 3, and a shaft 4. The two ends of the cylinder body 1 are sealed by the sealing cover 2. The piston 3 is located inside the cylinder body 1, dividing the cylinder body 1 into two chambers 5. The shaft 4 passes through a sealing cover 2 and is connected to the piston 3. The sealing cover 2 has an air passage 6 that connects to the chambers 5. The sealing cover 2 is provided with multiple sound insulation chambers 21 and air guiding chambers 22. The air guiding chambers 22 are connected by air pipes 7, and the air pipes 7 pass through the sound insulation chambers 21. The air pipes 7 have a sound guiding hole 10 at the position where they pass through the sound insulation chambers 21. The sound insulation chamber 21 has one and only one air pipe 7 with a sound guiding hole 10. In this invention, multiple sound insulation chambers 21 and air guiding chambers 22 can be provided. In this invention, there is one sound insulation chamber 21 and two air guiding chambers 22. The two ends of the air passage 6 are respectively connected to one air guiding chamber 22 and the chamber 5. The gas in the chamber 5 will be transmitted to one air guiding chamber 22. The air guiding chamber 22 is annular and can initially block noise. The air guiding chamber 22 is connected to the other air guiding chamber 22 through the air pipe 7. Some noise will be transmitted to the other air guiding chamber 22 through the air pipe 7. The air pipe 7 passes through the sound insulation chamber 21. The sound guiding hole 10 provided on the air pipe 7 is also located in the sound insulation chamber 21. There is only one air pipe 7 with a sound guiding hole 10 in the sound insulation chamber 21 to prevent the gas from forming a loop through the air hole. The noise will enter the sound insulation chamber 21 through the sound guiding hole 10, while the gas will not be affected. The noise will continuously consume energy in the sound insulation chamber 21 until it is eliminated. The gas in the entire cylinder device will pass through the sound insulation cavity 21 and the air guide cavity 22 on the sealing cover 2, and then enter the chamber 5 or be discharged, so that the gas of the entire device is filtered for noise.

[0024] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4The invention comprises multiple soundproof chambers 21 and air-guiding chambers 22, with two air-guiding chambers 22 sandwiching the soundproof chamber 21 in the middle to form a group. One end of the air passage 6 is connected to the chamber 5, and the other end is connected to the air-guiding chamber 22. The multiple air-guiding chambers 22 are connected to each other by air pipes 7. One of the air-guiding chambers 22 is equipped with an air nozzle 23 that communicates with the outside. In this invention, in order to improve the gas flow path, the soundproof chamber 21 is placed between two air-guiding chambers 22, and the air-guiding chambers 22 are connected to each other by air pipes 7. One air-guiding chamber 22 is connected to the chamber 5, and the other air-guiding chamber 22 is connected to the outside. In this way, the gas forms a loop. Both the air passage 6 and the air pipe 7 are pipes.

[0025] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4 Both the sound insulation cavity 21 and the air duct cavity 22 are filled with sound insulation cotton 9. The sound insulation cotton 9 in the air duct cavity 22 and the sound insulation cavity 21 has numerous pores. When noise passes through the solid material of the sound insulation cotton 9, its energy is converted into and continuously reduced by the sound insulation cotton 9, thus reducing the noise energy. Gases passing through the sound insulation cotton 9 are not affected.

[0026] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4 The sealing cover 2 has multiple air nozzles 23 on one of its air guide chambers 22, and these nozzles 23 are connected by a gas-gathering ring tube 24, which is fitted with an adapter 25. The air nozzles 23 on the sealing cover 2 are used to connect to an inflation device, which can inflate the chamber 5 to control the movement of the cylinder. There are multiple air passages 6 and multiple air pipes 7. Multiple air passages 6 and air pipes 7 are connected to each other to increase the airflow and facilitate faster noise transmission, while also filtering the noise through sound-absorbing cotton 9.

[0027] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4 Both airway 6 and air tube 7 penetrate the sound insulation cavity 21, and only one airway 6 or air tube 7 is located within the sound insulation cavity 21 and is provided with a sound guide hole 10. According to the above embodiment, multiple airways 6 and air tubes 7 are provided between each other. All airways 6 that connect the chamber 5 to one of the air guide cavities 22 are set as a group of airways 6, and the air tubes 7 that connect two chambers 5 are set as a group of air tubes 7. Then, only one group of air tubes 7 or airway 6 is provided with a sound guide hole 10 to prevent the formation of a loop in the sound insulation cavity 21, which would cause gas to enter and carry noise.

[0028] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4The sealing cover 2 has a circular hole 26 communicating with the chamber 5. A circular groove 27 communicating with the circular hole 26 is formed at one end of the sealing cover 2 near the chamber 5. A sealing ring 8 is installed on the circular groove 27, and the sealing ring 8 is fitted onto the shaft 4 and engaged with the circular groove 27. If one of the sealing covers 2 needs to expose the shaft 4, gas may leak from the gap between the shaft 4 and the sealing cover 2, causing noise to escape through the gap. Therefore, the sealing ring 8 is used to prevent gas from leaking out from the gap between the shaft 4 and the sealing cover 2.

[0029] In a specific embodiment, refer to Figure 1 Both the cylinder body 1 and the shaft body 4 are formed by stamping aluminum profiles. In this invention, both the cylinder body 1 and the shaft body 4 are manufactured by stamping aluminum profiles to avoid metal oxidation and thus reduce the lifespan of the device.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-noise aluminum profile cylinder, characterized in that, The cylinder includes a cylinder body (1), a sealing cover (2), a piston (3), and a shaft (4). The two ends of the cylinder body (1) are sealed by the sealing cover (2). The piston (3) is located inside the cylinder body (1) and divides the cylinder body (1) into two chambers (5). The shaft (4) passes through a sealing cover (2) and is connected to the piston (3). The sealing cover (2) has an air passage (6) that connects to the chambers (5). The sealing cover (2) is provided with multiple sound insulation chambers (21) and air guide chambers (22). The air guide chambers (22) are connected to each other by air pipes (7). (7) Passing through the soundproof cavity (21), the air pipe (7) has a sound guide hole (10) at the position of the soundproof cavity (21). There is only one air pipe (7) in the soundproof cavity (21) with a sound guide hole (10). One end of the air passage (6) is connected to the chamber (5), and the other end is connected to the air guide cavity (22). Multiple air nozzles (23) are provided on one of the air guide cavities (22) on the sealing cover (2). The air nozzles (23) are connected to each other by a gas gathering ring pipe (24). An adapter nozzle (25) is installed on the gas gathering ring pipe (24).

2. The low-noise aluminum profile cylinder according to claim 1, characterized in that, The sound insulation cavity (21) and the air guide cavity (22) are multiple. Two air guide cavities (22) sandwich the sound insulation cavity (21) in the middle to form a group. The multiple air guide cavities (22) are connected by air pipes (7). One of the air guide cavities (22) is provided with an air nozzle (23) that communicates with the outside.

3. The low-noise aluminum profile cylinder according to claim 1, characterized in that, Both the sound insulation cavity (21) and the air duct cavity (22) are filled with sound insulation cotton (9).

4. The low-noise aluminum profile cylinder according to claim 1, characterized in that, The airway (6) and the trachea (7) both pass through the sound insulation cavity (21), and the sound guide hole (10) is located only on the part of the airway (6) inside the sound insulation cavity (21).

5. The low-noise aluminum profile cylinder according to claim 1, characterized in that, The airway (6) has multiple airways.

6. The low-noise aluminum profile cylinder according to claim 1, characterized in that, The trachea (7) has multiple tubes.

7. The low-noise aluminum profile cylinder according to claim 1, characterized in that, The sealing cover (2) has a circular hole (26) that communicates with the chamber (5). The sealing cover (2) has a circular groove (27) that communicates with the circular hole (26) at one end near the chamber (5). A sealing ring (8) is installed on the circular groove (27). The sealing ring (8) is sleeved on the shaft (4) and engages with the circular groove (27).

8. The low-noise aluminum profile cylinder according to claim 1, characterized in that, Both the cylinder body (1) and the shaft body (4) are formed by stamping aluminum profiles.

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