Cylinder structure capable of installing air pipe in multiple modes

Abstract

The utility model relates to the technical field of air cylinders, and discloses an air cylinder structure with an air pipe installed in multiple modes. The piston rod comprises a piston and a push rod; the first channel forms a first air connecting port on the front end face of the cylinder barrel and forms a second air connecting port on the rear end face; the first channel is provided with a third gas connecting port and a fourth gas connecting port; the second channel forms a fifth air connecting port on the front end face of the cylinder barrel and forms a sixth air connecting port on the rear end face of the cylinder barrel, and the second channel is provided with a seventh air connecting port and an eighth air connecting port. The plugs are detachably installed on the first air connecting port, the second air connecting port, the third air connecting port, the fourth air connecting port, the fifth air connecting port, the sixth air connecting port, the seventh air connecting port and the eighth air connecting port. According to the utility model, various installation modes of the gas pipe joint can be provided, and different installation environment requirements can be met.

Description

Technical Field

[0001] This utility model relates to the field of cylinder technology, and in particular to a cylinder structure with multiple ways of installing air pipes. Background Technology

[0002] A cylinder is a cylindrical metal component that guides a piston in linear reciprocating motion within the cylinder. The specific driving process is as follows: Forward motion: Compressed air enters from the rear chamber intake port, pushing the piston forward, while air in the front chamber is discharged through the exhaust port. Reverse motion: Compressed air enters from the front chamber intake port, pushing the piston backward, while air in the rear chamber is discharged.

[0003] The connection method between the air pipe and the cylinder is fixed according to the movement process of the cylinder. Usually, air inlets are opened at the front and rear positions in the extension and retraction direction of the cylinder, and the air pipe is connected through the air inlets. Specifically, air inlets are set at the front and rear ends of the upper side of the cylinder.

[0004] However, this method of installing air pipes at the front and rear of the cylinder can be unsuitable for certain special installation space environments. For example, if the air pipe is installed at the rear of the cylinder, there may not be enough space at the front to install the air pipe; or if the air pipe is installed at the front of the cylinder, there may not be enough space at the rear to install the air pipe.

[0005] Therefore, improvements are needed. Utility Model Content

[0006] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a cylinder structure with multiple ways of installing air pipes, thereby solving the problems mentioned in the background art.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a cylinder structure for multi-mode installation of air pipes, comprising: a cylinder barrel, the cylinder barrel having a cavity for inputting or discharging compressed gas; a piston rod, the piston rod including a piston and a push rod, the piston being disposed at the end of the push rod, the piston being disposed within the cavity, and the push rod extending outside the cylinder barrel; a first channel, the first channel being disposed through the cylinder barrel, the first channel being disposed along the movement direction of the piston rod, the first channel forming a first air inlet on the front end face of the cylinder barrel, and the first channel forming a second air inlet on the rear end face of the cylinder barrel; the first channel having a third air inlet and a fourth air inlet, the third air inlet and the fourth air inlet being respectively disposed at the front and rear ends of the first channel; the third air inlet communicating with the first channel and the cavity and extending radially to the side of the cylinder barrel; the fourth air inlet... An air inlet is connected to the first channel and extends radially to the side of the cylinder; a second channel is disposed on the cylinder and is arranged along the movement direction of the piston rod; a fifth air inlet is formed on the front end face of the cylinder and a sixth air inlet is formed on the rear end face of the cylinder; a seventh air inlet and an eighth air inlet are provided on the second channel, which are respectively disposed at the front and rear ends of the second channel; the seventh air inlet is connected to the second channel and extends radially to the side of the cylinder; the eighth air inlet is connected to the second channel and the cavity and extends radially to the side of the cylinder; a plug is detachably installed on the first air inlet, the second air inlet, the third air inlet, the fourth air inlet, the fifth air inlet, the sixth air inlet, the seventh air inlet, and the eighth air inlet.

[0008] Furthermore, the third air inlet includes a first plug thread diameter and a first thread diameter connected to the first plug thread diameter. The first plug thread diameter is located above the first channel and extends radially to the side of the cylinder. The first thread diameter radially penetrates the first channel from the lower edge of the first plug thread diameter and communicates with the cavity through an air hole. The size of the first plug thread diameter is larger than the first thread diameter. The first thread diameter is the same as the thread diameter of the first air inlet, the second air inlet, and the fourth air inlet.

[0009] Furthermore, the eighth air inlet includes a second plug thread diameter and a second thread diameter connected to the second plug thread diameter. The second plug thread diameter is located above the second channel and extends radially to the side of the cylinder. The second thread diameter radially penetrates the second channel from the lower edge of the second plug thread diameter and communicates with the cavity through an air hole. The size of the second plug thread diameter is larger than the second thread diameter. The second thread diameter is the same as the thread diameter of the fifth air inlet, the sixth air inlet, and the seventh air inlet.

[0010] Furthermore, the diameter of the first plug is the same as the diameter of the second plug.

[0011] Furthermore, the second tooth diameter is the same as the first tooth diameter.

[0012] Furthermore, the plug includes a first plug for blocking the first plug diameter and the second plug diameter, and a second plug for blocking the diameters of the first air inlet, the second air inlet, the fourth air inlet, the fifth air inlet, the sixth air inlet, and the seventh air inlet.

[0013] Furthermore, the size of the second plug is smaller than the size of the first plug.

[0014] Furthermore, the third air inlet, the fourth air inlet, the seventh air inlet, and the eighth air inlet are located on the same side of the cylinder.

[0015] Furthermore, the third air inlet and the eighth air inlet are staggered.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] With high installation flexibility, multiple air inlets (first to eighth air inlets) and through channels (first channel and second channel) are set on the cylinder, allowing users to choose different locations to install air pipes according to actual space constraints. For example, when there is insufficient space at the rear end, air pipes can be connected to the front or side air inlets, effectively solving space conflicts in special installation environments.

[0018] High structural compatibility: The air inlet adopts a detachable plug design, which can be used to seal the air inlet at different positions according to the actual use, thereby realizing the flow direction of compressed air in the cavity.

[0019] Optimized air path layout: The third and eighth air inlets are staggered, which can retain the traditional air connection method. The front and rear end through channel design further expands the installation direction, which is especially suitable for narrow or asymmetrical spaces, and significantly improves the adaptability of the cylinder in complex environments. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the first installation method of this utility model.

[0021] Figure 2 yes Figure 1 A top-down view.

[0022] Figure 3 yes Figure 2 A cross-sectional view along AA.

[0023] Figure 4 yes Figure 2 A cross-sectional diagram along BB.

[0024] Figure 5 This is a schematic diagram of the second installation method.

[0025] Figure 6 yes Figure 5 A top-down view.

[0026] Figure 7 yes Figure 6 A cross-sectional view along CC.

[0027] Figure 8 yes Figure 6 A cross-sectional view along DD.

[0028] Figure 9 This is a structural diagram of the third installation method.

[0029] Figure 10 yes Figure 9 A top-down view.

[0030] Figure 11 yes Figure 9 A cross-sectional view along EE.

[0031] Figure 12 yes Figure 9 A cross-sectional view along FF.

[0032] Figure 13 This is a structural diagram of the fourth installation method.

[0033] Figure 14 yes Figure 13 A top-down view.

[0034] Figure 15 yes Figure 13 A cross-sectional view along line GG.

[0035] Figure 16 yes Figure 13 A cross-sectional diagram along HH.

[0036] Figure 17 This is a structural diagram of the fifth installation method.

[0037] Figure 18 yes Figure 17 A top-down view.

[0038] Figure 19 yes Figure 17 Schematic diagram of the section along II.

[0039] Figure 20 yes Figure 17 A cross-sectional diagram along JJ.

[0040] Figure 21 This is a schematic diagram of the plug structure.

[0041] Figure 22 This is a schematic diagram of the trachea.

[0042] Figure 23 This is a schematic diagram of the third air inlet.

[0043] Figure 24 This is a schematic diagram of the eighth air inlet.

[0044] Reference numerals: 1. Cylinder; 2. Cavity; 3. Piston rod; 4. First channel; 5. First air inlet; 6. Second air inlet; 7. Third air inlet; 8. Fourth air inlet; 9. Second channel; 10. Fifth air inlet; 11. Sixth air inlet; 12. Seventh air inlet; 13. Eighth air inlet; 14. Plug; 15. First plug thread diameter; 16. First thread diameter; 17. Second plug thread diameter; 18. Second thread diameter; 19. First plug; 20. Second plug. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings.

[0046] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly 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 connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In view of the technical problems described in the background art, such as Figure 1-20As shown, a cylinder structure for multi-mode air pipe installation is provided, including: a cylinder 1, the cylinder 1 having a cavity 2 for compressed gas input or discharge; a piston rod 3, the piston rod 3 including a piston and a push rod, the piston being disposed at the end of the push rod and disposed inside the cavity 2, the push rod extending to the outside of the cylinder 1; a first channel 4, the first channel 4 being disposed through the cylinder 1, the first channel 4 being disposed along the movement direction of the piston rod 3, the first channel 4 forming a first air inlet 5 at the front end face of the cylinder 1, the first channel 4 forming a second air inlet 6 at the rear end face of the cylinder 1; the first channel 4 having a third air inlet 7 and a fourth air inlet 8, the third air inlet 7 and the fourth air inlet 8 being respectively disposed at the front and rear ends of the first channel 4; the third air inlet 7 communicating with the first channel 4 and the cavity 2 and extending radially to the side of the cylinder 1; the fourth air inlet 8 communicating with the first channel 4 and extending radially to the side of the cylinder 1. The cylinder 1 has a side surface; a second channel 9, which is disposed on the cylinder 1 and is arranged along the movement direction of the piston rod 3; the second channel 9 forms a fifth air inlet 10 on the front end face of the cylinder 1 and a sixth air inlet 11 on the rear end face of the cylinder 1; the second channel 9 has a seventh air inlet 12 and an eighth air inlet 13, which are respectively disposed in the front and rear sections of the second channel 9; the seventh air inlet 12 communicates with the second channel 9 and extends radially to the side surface of the cylinder 1; the eighth air inlet 13 communicates with the second channel 9 and the cavity 2 and extends radially to the side surface of the cylinder 1; and a plug 14, which is detachably installed on the first air inlet 5, the second air inlet 6, the third air inlet 7, the fourth air inlet 8, the fifth air inlet 10, the sixth air inlet 11, the seventh air inlet 12, and the eighth air inlet 13.

[0048] In view of the problems described in the background art, a cylinder structure with multiple ways of installing air pipes is provided.

[0049] In the above, a cavity 2 is provided inside the cylinder 1, which is used for inputting compressed gas and discharging compressed gas.

[0050] Example 1: The direction in which the piston rod 3 of cylinder 1 moves forward is defined as the front end, and the direction in which the piston rod 3 moves backward is defined as the rear end; the direction in which the first channel 4 and the second channel 9 move forward toward the piston rod 3 is defined as the front section, and the direction in which the first channel 4 and the second channel 9 move backward toward the piston rod 3 is defined as the rear section.

[0051] A first channel 4 and a second channel 9 are formed on the cylinder 1, with the first channel 4 and the second channel 9 arranged parallel to each other. The first channel 4 and the second channel 9 are integrally formed with the cylinder 1 and are extruded integrally with the cylinder 1. The first channel 4 forms a first air inlet 5 on the front end face of the cylinder 1, and a second air inlet 6 on the rear end face of the cylinder 1. A third air inlet 7 and a fourth air inlet 8 are formed by drilling holes on the upper side of the cylinder 1 at the front and rear ends of the first channel 4, respectively. In practice, the third air inlet 7 is connected to the first channel 4 and the cavity 2, while the fourth air inlet 8 is connected to the first channel 4 but not to the cavity 2.

[0052] The second channel 9 forms a fifth air inlet 10 on the front end face of the cylinder 1, and a sixth air inlet 11 on the rear end face of the cylinder 1. A seventh air inlet 12 and an eighth air inlet 13 are formed by drilling holes on the upper side of the cylinder 1 towards the front and rear sections of the second channel 9. The seventh air inlet 12 is connected to the second channel 9 but not to the cavity 2. The eighth air inlet 13 is connected to both the second channel 9 and the cavity 2.

[0053] The above structural arrangement forms a 2*2 air inlet distribution on the upper side of the cylinder.

[0054] In the above, the first air inlet 5, the second air inlet 6, the third air inlet 7, the fourth air inlet 8, the fifth air inlet 10, the sixth air inlet 11, the seventh air inlet 12 and the eighth air inlet 13 are all internally threaded.

[0055] In the first application scenario, the above technical solution can retain the traditional air pipe connection method, which involves installing the air pipe in front of and behind the cylinder. Specifically, when connecting the air pipe to the third air inlet 7, the connector must be tightened beyond the first channel 4 to form a seal and maintain communication with the cavity 2; when connecting the air pipe to the eighth air inlet 13, the connector must be tightened beyond the second channel 9 to form a seal and maintain communication with the cavity 2. This allows compressed gas to directly enter the cavity 2 through the eighth air inlet 13, pushing the piston rod 3 forward, and also allows compressed gas to directly enter the cavity 2 through the third air inlet 7, driving the piston rod 3 backward. This air pipe connection method eliminates the need for the plug 14 for sealing.

[0056] In the second scenario, when the space requirements of the installation environment are insufficient to install the air pipe at the front section of the upper side of the cylinder, the air pipe is connected to the eighth air inlet 13. The connector of the air pipe must be tightened beyond the second channel 9 to form a blockage and maintain communication with the cavity 2. When the air pipe is connected to the fourth air inlet, the connector must not be tightened to block the first channel 4. Three plugs 14 are used to block the first air inlet 5, the second air inlet 6, and the third air inlet 7, respectively. Therefore, when compressed air is introduced into the eighth air inlet 13, it pushes the piston rod 3 forward. When compressed air is introduced into the fourth air inlet 8, the compressed air enters from the fourth air inlet 8, moves through the first channel 4 to the position of the third air inlet 7, enters the cavity 2, and pushes the piston rod 3 backward to reset.

[0057] In the third scenario, when the space requirements of the installation environment are insufficient to install the air pipe at the rear end of the cylinder's upper side, the air pipe is connected to the seventh air inlet 12. The connection depth of the air pipe connector must not exceed the second channel 9 to form a blockage. Three plugs 14 are used to block the fifth air inlet 10, the sixth air inlet 11, and the eighth air inlet 13, respectively. When the air pipe is connected to the third air inlet, the connection depth of the air pipe connector must exceed the first channel 4 to form a blockage and communicate with the cavity 2. Thus, when compressed air is introduced into the seventh air inlet 12, it enters the cavity 2 through the eighth air inlet 13 of the second channel 9, pushing the piston rod 3 forward. When compressed air is introduced into the third air inlet 7, the compressed air enters the cavity 2 from the third air inlet 7, pushing the piston rod 3 backward to reset.

[0058] In the fourth scenario, when the upper side of the cylinder cannot meet the installation requirements of the air pipe, the rear end face of the cylinder has the necessary installation conditions. The air pipe is connected to the sixth air inlet 11, and the fifth air inlet 10, the seventh air inlet 12, and the eighth air inlet 13 are sealed with plugs 14; the air pipe is connected to the second air inlet 6, and the first air inlet 5, the third air inlet 7, and the fourth air inlet 8 are sealed with plugs 14. Compressed air enters the second channel 9 from the sixth air inlet 11, and enters the cavity 2 from the eighth air inlet 13 of the second channel 9, pushing the piston rod 3 forward; compressed air enters the first channel 4 from the second air inlet 6, and enters the cavity 2 from the third air inlet 7 of the first channel 4, pushing the piston rod 3 backward to reset.

[0059] In the fifth scenario, during implementation, when the upper side and rear end face of the cylinder cannot meet the installation requirements of the air pipe, but the front end face of the cylinder can, the air pipe is connected to the fifth air inlet 10, and the sixth air inlet 11, the seventh air inlet 12, and the eighth air inlet 13 are sealed with plugs 14 respectively; when the air pipe is connected to the first air inlet 5, the second air inlet 6, the third air inlet 7, and the fourth air inlet 8 are sealed with plugs 14 respectively. Compressed air enters the second channel 9 from the fifth air inlet 10, and enters the cavity 2 from the eighth air inlet 13 of the second channel 9, pushing the piston rod 3 forward; compressed air enters the first channel 45 from the first air inlet 5, and enters the cavity 2 from the third air inlet 7 of the first channel 4, pushing the piston rod 3 backward to reset.

[0060] The above technical solution retains the traditional connection method between the air pipe and the cylinder. At the same time, by setting the first air inlet 5 to the eighth air inlet 13 on the cylinder, the air pipe connectors can be installed at the front, rear, front, and rear ends of the cylinder, depending on the installation environment. This effectively solves the space conflict problem in special installation environments and provides a wider range of air pipe connection methods.

[0061] refer to Figure 23-24 As shown, the third air inlet 7 includes a first plug diameter 15 and a first diameter 16 connected to the first plug diameter 15. The first plug diameter 15 is located above the first channel 4 and extends radially to the side of the cylinder 1. The first diameter 16 extends radially through the first channel 4 from the lower edge of the first plug diameter 15. The first diameter 16 communicates with the cavity 2 through an air hole. The size of the first plug diameter 15 is larger than that of the first diameter 16. The first diameter 16 has the same diameter as the first air inlet 5, the second air inlet 6, and the fourth air inlet 8.

[0062] In practical use, refer to Figure 20 As shown, the connector of the airway has a hexagonal nut structure at the top and an external thread structure at the bottom. In the traditional front-to-back installation method, since there is no change in the direction of airflow, it is only necessary to connect the external thread structure of the connector with the internal thread structure of the air inlet.

[0063] To address this, and to avoid the position of the hexagonal nut, the third air inlet 7 is designed with a first plug thread diameter of 15 and a first thread diameter of 16. The specific usage is as follows: When the third air inlet 7 needs to be connected, the external thread structure at the lower end of the air pipe connector is fitted with the first thread diameter of 16 to ensure that compressed gas enters the cavity 2 of the cylinder 1 through the third air inlet 7. Simultaneously, the presence of the first plug thread diameter of 15 allows for the accommodation of the hexagonal nut structure on the air pipe connector, thus creating a clearance. When the third air inlet 7 does not need to be connected, a plug 14 is used to seal the first plug thread diameter of 15, thereby changing the flow direction of the compressed gas.

[0064] The eighth air inlet 13 includes a second plug thread diameter 17 and a second thread diameter 18 connected to the second plug thread diameter 17. The second plug thread diameter 17 is located above the second channel 9 and extends radially to the side of the cylinder 1. The second thread diameter 18 extends radially through the second channel 9 from the lower edge of the second plug thread diameter 17 and communicates with the cavity 2 through an air hole. The size of the second plug thread diameter 17 is larger than that of the second thread diameter 18. The second thread diameter 18 has the same thread diameter as the fifth air inlet 10, the sixth air inlet 11, and the seventh air inlet 12.

[0065] The structural design principle of the eighth air inlet 13 is the same as that of the third air inlet 7 mentioned above. The structural design principle of the third air inlet 7 mentioned above can be referred to, and will not be repeated here.

[0066] Preferably, the first plug thread diameter 17 is the same as the second plug thread diameter 17. The second thread diameter 18 is the same as the first thread diameter 16.

[0067] like Figure 19 As shown, the plug 14 includes a first plug 19 for blocking the first plug diameter 15 and the second plug diameter 17, and a second plug 20 for blocking the diameters of the first air inlet 5, the second air inlet 6, the fourth air inlet 8, the fifth air inlet 10, the sixth air inlet 11, and the seventh air inlet 12.

[0068] The above technical solution uses two types of plugs 14. The first type is used to block the first plug diameter 15 on the third air inlet 7 and the second plug diameter 17 on the eighth air inlet 13. The second type is used to block the diameters on the first air inlet 5, the second air inlet 6, the fourth air inlet 8, the fifth air inlet 10, the sixth air inlet 11 and the seventh air inlet 12.

[0069] Preferably, the size of the second plug 20 is smaller than the size of the first plug 19.

[0070] Preferably, the third air inlet 7, the fourth air inlet 8, the seventh air inlet 12, and the eighth air inlet 13 are located on the same side of the cylinder.

[0071] Preferably, the third air inlet 7 and the eighth air inlet 13 are staggered, thus preserving the traditional air tube connection method.

[0072] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A multi-mode mounting tracheal tube cylinder structure, characterized by, include: A cylinder barrel, wherein the cylinder barrel is provided with a cavity for inputting or discharging compressed gas; A piston rod, comprising a piston and a push rod, wherein the piston is disposed at the end of the push rod and is located within the cavity, and the push rod extends outside the cylinder; A first channel is provided through the cylinder barrel, and the first channel is arranged along the movement direction of the piston rod. The first channel forms a first air inlet on the front end face of the cylinder barrel and a second air inlet on the rear end face of the cylinder barrel. The first channel is provided with a third air inlet and a fourth air inlet, which are respectively located at the front and rear ends of the first channel. The third air inlet communicates with the first channel and the cavity and extends radially to the side of the cylinder barrel. The fourth air inlet communicates with the first channel and extends radially to the side of the cylinder barrel. A second channel is disposed on the cylinder and is arranged along the movement direction of the piston rod. A fifth air inlet is formed on the front end face of the cylinder, and a sixth air inlet is formed on the rear end face of the cylinder. A seventh and eighth air inlet are provided on the second channel, respectively located at the front and rear ends of the channel. The seventh air inlet communicates with the second channel and extends radially to the side of the cylinder. The eighth air inlet communicates with the second channel and the cavity and extends radially to the side of the cylinder. A plug, which is detachably installed in the first air inlet, the second air inlet, the third air inlet, the fourth air inlet, the fifth air inlet, the sixth air inlet, the seventh air inlet, and the eighth air inlet.

2. The cylinder structure for multi-mode air pipe installation according to claim 1, characterized in that: The third air inlet includes a first plug thread diameter and a first thread diameter connected to the first plug thread diameter. The first plug thread diameter is located above the first channel and extends radially to the side of the cylinder. The first thread diameter radially penetrates the first channel from the lower edge of the first plug thread diameter and communicates with the cavity through an air hole. Wherein, the size of the first plug tooth diameter is larger than the first tooth diameter; the first tooth diameter is the same as the tooth diameter of the first air inlet, the second air inlet, and the fourth air inlet.

3. The cylinder structure for multi-mode air pipe installation according to claim 2, characterized in that: The eighth air inlet includes a second plug thread diameter and a second thread diameter connected to the second plug thread diameter. The second plug thread diameter is located above the second channel and extends radially to the side of the cylinder. The second thread diameter radially penetrates the second channel from the lower edge of the second plug thread diameter and communicates with the cavity through an air hole. The second plug has a larger tooth diameter than the second tooth diameter; the second tooth diameter is the same as the tooth diameter of the fifth air inlet, the sixth air inlet, and the seventh air inlet.

4. The cylinder structure for multi-mode air pipe installation according to claim 3, characterized in that: The diameter of the first plug is the same as the diameter of the second plug.

5. The cylinder structure for multi-mode air pipe installation according to claim 3, characterized in that: The second tooth diameter is the same as the first tooth diameter.

6. The cylinder structure for multi-mode air pipe installation according to claim 3, characterized in that: The plug includes a first plug for blocking the first plug diameter and the second plug diameter, and a second plug for blocking the first air inlet diameter, the second air inlet diameter, the fourth air inlet diameter, the fifth air inlet diameter, the sixth air inlet diameter, and the seventh air inlet diameter.

7. The cylinder structure for multi-mode air pipe installation according to claim 6, characterized in that: The size of the second plug is smaller than the size of the first plug.

8. The cylinder structure for multi-mode air pipe installation according to claim 5, characterized in that: The third air inlet, the fourth air inlet, the seventh air inlet, and the eighth air inlet are located on the same side of the cylinder.

9. The cylinder structure for multi-mode air pipe installation according to claim 8, characterized in that: The third air inlet and the eighth air inlet are misaligned.

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