Side swing type opening and closing cylinder for building curtain window

Abstract

The application relates to a side swing type opening and closing cylinder for building curtain windows, and relates to the technical field of pneumatic elements. The cylinder comprises a cylinder body and a cylinder rod slidingly arranged at one end of the cylinder body. An inner cavity is formed in the cylinder body. The cylinder rod penetrates into the inner cavity and is sleeved with a piston. The piston divides the inner cavity into a first air cavity and a second air cavity. The cylinder body further comprises a rear cover. The rear cover is provided with a first air channel and a second air channel. The first air channel and the second air channel are respectively communicated with the first air cavity and the second air cavity. The cylinder body further comprises a base fixed to a curtain window frame. The rear cover is connected with a rotating seat. The rotating seat is rotatably sleeved on the base. The base is provided with a third air channel and a fourth air channel which are respectively communicated with the outside. The other ends of the third air channel and the fourth air channel penetrate through the rotating seat and are respectively communicated with the first air channel and the second air channel in an air-tight mode. The cylinder can be conveniently connected with an air inlet pipe, the air inlet pipe cannot be entangled at the joint position, the air inlet pipe can be conveniently hidden in the mounting frame of the curtain window, and the overall aesthetic property of the inner wall of the building is ensured.

Description

Technical Field

[0001] This application relates to the field of pneumatic component technology, and in particular to a side-swing type opening and closing cylinder for building curtain windows. Background Technology

[0002] Curtain windows are large glass components in the exterior structure of buildings used for lighting and ventilation, commonly found in commercial buildings and high-rise residential buildings. They feature independent system design and high load-bearing capacity. In airports, train stations, and other large public spaces, curtain windows are often installed on the roof or side walls of the building. They not only increase the building's lighting capacity but also serve for daily ventilation and emergency smoke extraction in case of fire. Because curtain windows are heavy, relying solely on manual operation would significantly increase labor costs. Therefore, pneumatic actuators are often used to control the opening and closing of curtain windows by feeding compressed gas into cylinders. To avoid affecting the daily light transmission of the curtain window, the cylinders are often mounted on the mounting frames on both sides of the curtain window's hinge end, i.e., side-swing cylinders.

[0003] Because the side-swing cylinder is externally mounted, the air intake pipe is also exposed when connecting the pneumatic power source to the cylinder. In buildings with multiple curtain windows, an externally mounted air intake pipe not only increases the risk of accidental disconnection but also significantly affects the overall aesthetics of the building's interior walls. Therefore, the structure of the side-swing cylinder still warrants improvement. Utility Model Content

[0004] In order to avoid the air intake pipe between the side-swing cylinder connected to the building curtain window and the pneumatic source being externally located, thereby reducing the probability of the air intake pipe becoming disconnected in case of an accident, and improving the overall aesthetics of the building's interior wall, this application provides a side-swing opening and closing cylinder for building curtain windows.

[0005] The technical solution provided in this application for a side-swing opening and closing cylinder for building curtain windows is as follows: A side-swing opening and closing cylinder for architectural curtain windows includes a cylinder body and a cylinder rod slidably passing through one end of the cylinder body. The cylinder body has an inner cavity, and one end of the cylinder rod passes through the inner cavity and is fitted with a piston. The piston divides the inner cavity into an air chamber one and an air chamber two. The cylinder body also includes a rear cover, on which air passage one and air passage two are respectively opened. One end of air passage one and air passage two are respectively connected to air chamber one and air chamber two. The cylinder also includes a base fixed to the curtain window frame. The rear cover is connected to a rotating seat, which is rotatably fitted onto the base. Air passage three and air passage four are respectively opened through the base and communicate with the outside. The other ends of air passage three and air passage four pass through the rotating seat and are respectively airtightly connected to air passage one and air passage two.

[0006] Optionally, a sealing connecting rod is embedded in the inlet end of both air passage one and air passage two on the rear cover. An intermediate air passage is opened through both sealing connecting rods, and the other end of both sealing connecting rods is embedded in the rotating seat and is airtightly connected to air passage three and air passage four respectively.

[0007] Optionally, the two intermediate airways are coaxial with airway one and airway two, respectively, and the diameter of the intermediate airway is the same as that of airway one and airway two.

[0008] Optionally, the base is provided with an annular channel one and an annular channel two in the circumferential direction at the position where the rotating seat is sleeved. The ends of the air passage one and the air passage three are in airtight communication with the annular channel one, and the ends of the air passage two and the air passage four are in airtight communication with the annular channel two.

[0009] Optionally, the air inlet ends of air passage three and air passage four are located on the same side of the base, and the axes of air passage three and air passage four are consistent with the extension direction of the air inlet pipe.

[0010] In summary, this application includes at least one of the following beneficial technical effects: The side-swing cylinder for curtain windows in this application can prevent the air intake pipe from getting tangled at the connection point with the cylinder, and the air intake pipe will not move when the cylinder rotates, thereby effectively preventing the connection from becoming loose or detached due to the movement of the air intake pipe, and improving the stability of the connection structure between the cylinder and the air intake source. The air inlet ends of air duct three and air duct four in this application are both located on the same side of the base, which allows the air inlet pipe to be inserted into the mounting frame and smoothly connected to the base without bending. This not only enables convenient connection and makes the compressed gas delivery smoother, but also makes it easy to hide the air inlet pipe and keep the interior wall of the building simple and beautiful. The cylinder of this application can still ensure normal compressed gas delivery while rotating, making it more suitable for opening and closing curtain windows. Attached Figure Description

[0011] Figure 1 This is an overall view of a side-swing opening and closing cylinder for building curtain windows according to this application.

[0012] Figure 2 yes Figure 1 Cross-sectional view at point AA.

[0013] Figure 3 This is an exploded view of the rotating end structure of a side-swing opening and closing cylinder for building curtain windows according to this application.

[0014] Explanation of reference numerals in the attached drawings: 1. Cylinder block; 11. Inner cavity; 111. Air chamber one; 112. Air chamber two; 12. Rear cover; 121. Air passage one; 122. Air passage two; 2. Cylinder rod; 3. Piston; 4. Base; 41. Air passage three; 42. Air passage four; 43. Annular channel one; 44. Annular channel two; 5. Rotating seat; 6. Sealing connecting rod; 61. Intermediate air passage; 7. O-ring. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0016] This application discloses a side-swing type opening and closing cylinder for building curtain windows.

[0017] Reference Figure 1 and Figure 2 A side-swing opening and closing cylinder for architectural curtain windows is used to hinge between the side of the curtain window and the mounting frame on the inner wall of the building. When the cylinder is extended or shortened by compressed gas supplied by an air source, it can push or pull the curtain window to open or close, providing convenient control of the curtain window and saving manpower. The cylinder specifically includes a cylinder body 1 and a cylinder rod 2 that slides through the end of the cylinder body 1 away from the hinge position. The cylinder body 1 has an inner cavity 11. One end of the cylinder rod 2 extends into the inner cavity 11 and is connected to a piston 3 that is airtightly fitted to the inner wall of the inner cavity 11. The piston 3 divides the inner cavity 11 into two adjacent air chambers, 111 and 112, and the volumes of air chambers 111 and 112 change accordingly with the movement of the piston 3.

[0018] The cylinder body 1 also includes a rear cover 12, on which air passage 121 and air passage 122, which communicate with the outside, are respectively opened. The other ends of air passage 121 and air passage 122 are respectively connected to air chamber 111 and air chamber 112. When the pressure of the compressed gas entering air chamber 111 and air chamber 112 through air passage 121 and air passage 122, respectively, changes, a pressure difference will be formed on both sides of the piston 3, thereby driving the piston 3 to move in a certain direction along the axis and causing the cylinder rod 2 to extend or shorten.

[0019] Reference Figure 2 Furthermore, the cylinder also includes a base 4 fixed to the curtain window frame, and a rotating seat 5 fixedly sleeved on the rear cover 12. The rotating seat 5 is rotatably sleeved on the base 4 via bearings. Air passages 3 41 and 42 are respectively opened through the base 4. Both air passages 3 41 and 42 pass through the rotating seat 5 and are airtightly connected to air passage 1 121 and air passage 2 122 respectively. During ventilation, compressed gas is introduced from the air intake source into air passages 3 41 and 42 respectively, and then into air passages 1 121 and 122.

[0020] This connection structure prevents the intake pipe from being directly connected to the cylinder. The cylinder will not affect the intake pipe when it rotates, ensuring a stable connection and making the connection between the intake pipe and the cylinder more convenient.

[0021] Reference Figure 2 and Figure 3 Furthermore, a sealing connecting rod 6 is embedded in the rear cover 12 at the inlet ends of both air passage 121 and air passage 122. An intermediate air passage 61 extends through the sealing connecting rod 6, and both ends of the intermediate air passage 61 connect to air passage 121 and air passage 41 or air passage 22 and air passage 42, respectively. The other end of the sealing connecting rod 6 is embedded in the rotating seat 5 and is airtightly fixedly connected to the rotating seat 5. The sealing connecting rod 6 ensures that the connection point of the air passages is offset from the connection seam between the rear cover 12 and the rotating seat 5, preventing gas leakage at the connection point and ensuring that compressed gas can smoothly enter the cylinder body 1, thus improving the overall gas sealing performance of the cylinder inlet end.

[0022] Reference Figure 2 and Figure 3 Furthermore, the two intermediate air passages 61 are coaxial with air passage one 121 and air passage two 122, respectively, and the diameters of intermediate air passages 61, air passage one 121, and air passage two 122 are all the same. This ensures that the compressed gas flows smoothly without obstruction when passing through this structure. At the same time, this structure can also reduce the impact of the compressed gas flow velocity on the pressure difference in air chamber one 111 and air chamber two 112 when driving the cylinder, facilitating more precise and rapid adjustment of the position of the cylinder rod 2 by the operator.

[0023] Reference Figure 3 Specifically, annular channels 43 and 44 are circumferentially formed on the base 4 at the position where the rotating seat 5 is attached. Annular channels 43 and 44 are spaced apart along the axis of the base 4 and, together with the rotating seat 5, form an airtight space for the flow of compressed gas. Annular channel 43 is connected to air passages 121 and 41, while annular channel 44 is connected to air passages 122 and 42. The design of annular channels 43 and 44 ensures that the flow of compressed gas is not affected by the rotation of the cylinder, and that the compressed gas can still enter the inner cavity 11 of the cylinder 1 quickly and smoothly.

[0024] Preferably, O-rings 7 are embedded on both sides of the annular channel 1 43 and the annular channel 2 44 along the axial direction on the rotating seat 5 to increase the sealing of the annular channel 1 43 and the annular channel 2 44. The inner sidewall of the O-ring 7 is always in contact with the base 4.

[0025] Reference Figure 1 and Figure 3Preferably, the air inlet ends of air duct 3 41 and air duct 42 are both located on the same side of the base 4, and the axes of air duct 3 41 and air duct 42 are aligned with the extension direction of the air inlet pipe. This design not only allows the air inlet pipes to be arranged more orderly, facilitating overall installation and disassembly, but also helps installers conceal the air inlet pipes within the curtain window installation frame on the building's interior wall, ensuring the overall aesthetics of the building's interior.

[0026] The implementation principle of a side-swing opening and closing cylinder for building curtain windows in this application embodiment is as follows: This application achieves a stable connection between the intake pipe and the cylinder by connecting the two air inlets of the side-swing cylinder to the base 4 fixed on the curtain window mounting frame. When the cylinder swings, the intake pipe will not swing accordingly, while ensuring a stable and smooth delivery of compressed gas.

[0027] Furthermore, the design advantage of the cylinder structure in this application lies in the fact that the air intake pipe connected to the cylinder can be hidden within the curtain window installation frame on the interior wall of the building, thereby maintaining the overall aesthetics of the interior wall.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A side-swing type opening and closing cylinder for building curtain windows, comprising a cylinder body (1) and a cylinder rod (2) slidably passing through one end of the cylinder body (1), wherein the cylinder body (1) has an inner cavity (11), one end of the cylinder rod (2) passes through the inner cavity (11) and is fitted with a piston (3), the piston (3) dividing the inner cavity (11) into a first air chamber (111) and a second air chamber (112), the cylinder body (1) further comprising a rear cover (12), wherein the rear cover (12) has an air passage (121) and an air passage (122) respectively, one end of the first air passage (121) and the second air passage (122) communicating with the first air chamber (111) and the second air chamber (112) respectively, characterized in that: It also includes a base (4) fixed to the curtain window frame. The back cover (12) is connected to a rotating seat (5). The rotating seat (5) is rotatably mounted on the base (4). The base (4) is provided with air passage three (41) and air passage four (42) that communicate with the outside. The other end of the air passage three (41) and the air passage four (42) both pass through the rotating seat (5) and are airtightly connected to the air passage one (121) and the air passage two (122) respectively.

2. The side-swing type opening and closing cylinder for building curtain windows according to claim 1, characterized in that: Sealing connecting rods (6) are embedded in the inlet ends of air passage one (121) and air passage two (122) on the back cover (12). A middle air passage (61) is opened through both sealing connecting rods (6), and the other end of both sealing connecting rods (6) is embedded in the rotating seat (5) and is airtightly connected to air passage three (41) and air passage four (42) respectively.

3. The side-swing type opening and closing cylinder for building curtain windows according to claim 2, characterized in that: The two intermediate airways (61) are coaxial with the first airway (121) and the second airway (122) respectively, and the diameter of the intermediate airway (61) is the same as that of the first airway (121) and the second airway (122).

4. The side-swing type opening and closing cylinder for building curtain windows according to claim 1, characterized in that: The base (4) has an annular channel one (43) and an annular channel two (44) respectively circumferentially opened at the position where the rotating seat (5) is sleeved. The ends of the air passage one (121) and the air passage three (41) are airtightly connected to the annular channel one (43), and the ends of the air passage two (122) and the air passage four (42) are airtightly connected to the annular channel two (44).

5. A side-swing type opening and closing cylinder for building curtain windows according to claim 1, characterized in that: The air intake ends of the third (41) and the fourth (42) are both located on the same side of the base (4), and the axes of the third (41) and the fourth (42) are both consistent with the extension direction of the air intake pipe.

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