A quick connection device for ventilation ducts and ventilation ducts

Abstract

This utility model relates to the field of ventilation duct connection equipment, specifically to a quick connection device and ventilation duct, including a rotating shaft and connecting components. The connecting components include an upper sealing ring, a lower sealing ring, a stop plate, a connecting shaft, a fixing component, and a pulling component. The ventilation duct is placed on the lower sealing ring. By rotating the upper sealing ring on the rotating shaft, the upper and lower sealing rings are made to overlap. Then, by rotating the fixing component on the connecting shaft, the fixing component is engaged in the fixing hole on the upper sealing ring. By adjusting the fixing component and the stop plate, the fixing shaft is restricted, thereby fixing the upper and lower sealing rings. At the same time, when disassembly is required, by adjusting the pulling component, the fixing component can be removed from restricting the upper and lower sealing rings, thereby improving the efficiency of quick connection and disassembly of ventilation ducts.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation duct connection equipment, and in particular to a ventilation duct quick connection device and a ventilation duct. Background Technology

[0002] Ventilation ducts are metal or composite pipes used in ventilation and air conditioning projects for industrial and civil buildings. They are a type of municipal infrastructure designed to improve air circulation and reduce the concentration of harmful gases. The installation of ventilation ducts effectively enhances air circulation within buildings and reduces the concentration of harmful gases.

[0003] The prior art patent CN219994656U discloses a quick connector for ventilation ducts. An upper arc plate, fixedly connected to a first connecting plate on the upper side with a rotating shaft as its center, moves upwards, and similarly, a lower arc plate moves downwards. The ventilation duct is placed between the upper and lower arc plates, so that the inner wall of the arc plate is tightly against the ventilation duct. A nut rotates and engages with a threaded hole on a second connecting plate, and a threaded sleeve rotates and engages with the lower end of the nut. Tightening the threaded sleeve completes the fixation of the ventilation duct. The left arc plate moves to the right, and the sub-connector slides and engages with the mother connector, causing the locking blocks at both ends of the sub-connector to be located behind the locking groove on the mother connector. Rotating the left arc plate counterclockwise causes the locking blocks to slide forward and engage in the locking groove. At this point, the two ventilation duct sections are connected together.

[0004] While the above method can achieve quick connection of ventilation ducts, it requires tightening by rotating the corresponding workpiece screw sleeve during the connection process, which reduces the efficiency of quick connection. Utility Model Content

[0005] The purpose of this utility model is to provide a quick connection device and ventilation duct, which aims to solve the problem that in the existing technology, the connection of ventilation ducts requires tightening by rotating the corresponding workpiece screw sleeve, thereby reducing the efficiency of quick connection.

[0006] To achieve the above objectives, this utility model provides a quick connection device for ventilation ducts, including a rotating shaft and connecting components.

[0007] The connecting component includes an upper sealing ring, a lower sealing ring, a stop plate, a connecting shaft, a fixing component, and a pulling component. The upper sealing ring is rotatably connected to the rotating shaft and is located on the outer wall of the rotating shaft. The lower sealing ring is rotatably connected to the rotating shaft and is located below the upper sealing ring. The stop plate is fixedly connected to the upper sealing ring and is located on one side of the upper sealing ring. The upper and lower sealing rings are provided with fixing openings. The connecting shaft is fixedly connected to the lower sealing ring and is located in the fixing opening. The fixing component is located on one side of the connecting shaft, and the pulling component is located on one side of the fixing component.

[0008] The fixing assembly includes a fixing shaft, a positioning frame, a spring, and an adjusting plate. The fixing shaft is rotatably connected to the connecting shaft and is located on the outer wall of the connecting shaft. The positioning frame is fixedly connected to the fixing shaft and is located on the inner wall of the fixing shaft. The adjusting plate is rotatably connected to the positioning frame and is located on the outer wall of the positioning frame. The spring is fixedly connected to the adjusting plate and is located on one side of the adjusting plate. The other end of the spring is fixedly connected to the fixing shaft.

[0009] The fixing component further includes a locking sleeve, which is slidably connected to the fixing shaft and located on the outer wall of the fixing shaft.

[0010] The pulling assembly includes a pulling shaft and a pulling rod. The pulling shaft is slidably connected to the fixed shaft and passes through the fixed shaft. The pulling rod is rotatably connected to the pulling shaft and is located on one side of the pulling shaft. The other end of the pulling rod is rotatably connected to the adjusting plate.

[0011] One type of ventilation duct is used in the aforementioned ventilation duct quick-connect device.

[0012] The device includes a pipe, a plug, a sealing gasket, a magnetic block, and a magnetic sheet. The plug is fixedly connected to the pipe and located on one side of the pipe. The magnetic block is fixedly connected to the plug and located on the side of the plug away from the pipe. The pipe has a through hole. The magnetic sheet is fixedly connected to the pipe and located inside the through hole. The sealing gasket is fixedly connected to the pipe and located on one side of the pipe.

[0013] This utility model discloses a quick-connect device and ventilation duct for ventilation ducts, including a rotating shaft and connecting components. The connecting components include an upper sealing ring, a lower sealing ring, a stop plate, a connecting shaft, a fixing component, and a pulling component. The ventilation duct is placed on the lower sealing ring. By rotating the upper sealing ring on the rotating shaft, the upper sealing ring and the lower sealing ring overlap. Then, by rotating the fixing component on the connecting shaft, the fixing component engages with the fixing opening on the upper sealing ring. Adjusting the fixing component and the stop plate restricts the fixing shaft, thereby fixing the upper and lower sealing rings in place. Simultaneously, when disassembly is required, adjusting the pulling component removes the fixing component from restricting the upper and lower sealing rings, thus improving the efficiency of quick connection and disassembly of the ventilation duct. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a quick connection device for ventilation ducts provided by this utility model.

[0016] Figure 2 This is a front view of a quick-connect device for ventilation ducts provided by this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixed shaft and the engaging cylinder provided by this utility model.

[0018] Figure 4 This utility model provides a ventilation duct and a structural schematic diagram of the ventilation duct.

[0019] Figure 5 This is a structural schematic diagram of a ventilation duct provided by this utility model.

[0020] 101-Rotating shaft, 102-Upper sealing ring, 103-Lower sealing ring, 104-Stop plate, 105-Connecting shaft, 106-Fixing assembly, 107-Pull assembly, 108-Fixing shaft, 109-Positioning frame, 110-Spring, 111-Adjusting plate, 112-Clamping cylinder, 113-Pull shaft, 114-Pull rod, 115-Fixing port, 116-Clamping groove, 201-Pipe, 202-Insertion post, 203-Sealing gasket, 204-Magnetic block, 205-Magnetic sheet, 206-Through hole. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] First embodiment:

[0023] Please see Figures 1 to 3 ,in Figure 1 This is a structural schematic diagram of a quick-connect device for ventilation ducts provided by this utility model. Figure 2 This is a front view of a quick-connect device for ventilation ducts provided by this utility model. Figure 3This is a schematic diagram of the internal structure of the fixed shaft and the engaging cylinder provided by this utility model.

[0024] This utility model provides a quick-connect device for ventilation ducts, including a rotating shaft 101 and connecting components. The connecting components include an upper sealing ring 102, a lower sealing ring 103, a stop plate 104, a connecting shaft 105, a fixing component 106, and a pulling component 107. The fixing component 106 includes a fixing shaft 108, a positioning frame 109, a spring 110, an adjusting plate 111, and a locking cylinder 112. The pulling component 107 includes a pulling shaft 113 and a pulling rod 114. This solution solves the problem in the prior art where tightening the connecting sleeve by rotating a corresponding workpiece reduces the efficiency of quick connection.

[0025] In this specific embodiment, the upper sealing ring 102 is rotatably connected to the rotating shaft 101 and located on the outer wall of the rotating shaft 101. The lower sealing ring 103 is rotatably connected to the rotating shaft 101 and located below the upper sealing ring 102. The stop plate 104 is fixedly connected to the upper sealing ring 102 and located on one side of the upper sealing ring 102. Fixing openings 115 are provided on the upper sealing ring 102 and the lower sealing ring 103. The connecting shaft 105 is fixedly connected to the lower sealing ring 103 and located in the fixing opening 115. The fixing component 106 is located on one side of the connecting shaft 105. The pulling component 107 is located on one side of the fixing component 106. The ventilation duct is placed on the lower sealing ring 103. By rotating the upper sealing ring 102 on the rotating shaft 101, the upper sealing ring 102 and the lower sealing ring 103 are made to overlap. Then, by rotating the fixing component 106 on the connecting shaft 105, the fixing component 106 is engaged in the fixing port 115 on the upper sealing ring 102. By adjusting the fixing component 106 and the stop plate 104, the fixing shaft 108 is restricted, thereby fixing the upper sealing ring 102 and the lower sealing ring 103. At the same time, when disassembly is required, by adjusting the pulling component 107, the fixing component 106 can be removed from restricting the upper sealing ring 102 and the lower sealing ring 103, thereby improving the efficiency of quick connection and disassembly of the ventilation duct.

[0026] Meanwhile, the fixed shaft 108 is rotatably connected to the connecting shaft 105 and is located on the outer wall of the connecting shaft 105. The positioning frame 109 is fixedly connected to the fixed shaft 108 and is located on the inner wall of the fixed shaft 108. The adjusting plate 111 is rotatably connected to the positioning frame 109 and is located on the outer wall of the positioning frame 109. The spring 110 is fixedly connected to the adjusting plate 111 and is located on one side of the adjusting plate 111. The other end of the spring 110 is fixedly connected to the fixed shaft 108. The engaging cylinder 112 is slidably connected to the fixed shaft 108 and is located on the outer wall of the fixed shaft 108. An engaging groove 116 is provided on the inner wall of the engaging cylinder 112. The inclination angle of the bottom end of the engaging cylinder 112 is the same as the inclination angle of the engaging end of the adjusting plate 111. The interior of the fixed shaft 108 is hollow. The fixed shaft 108 rotates on the connecting shaft 105, causing the fixed shaft 108 to engage in the fixing port 115 on the upper sealing ring 102. Then, by pushing the engaging cylinder 112 along the outer wall of the fixed shaft 108, the bottom of the engaging cylinder 112 contacts the engaging end of the adjusting plate 111, causing the adjusting plate 111 to rotate on the positioning frame 109. At the same time, the adjusting plate 111 also compresses the spring 110. As the engaging cylinder 112 moves downward and reaches the engaging groove 116, the adjusting plate 111 returns to its initial state under the elastic action of the spring 110, engaging into the engaging groove 116. This restricts the upper sealing ring 102 and the lower sealing ring 103, achieving a quick connection of the ventilation duct.

[0027] Secondly, the pull shaft 113 is slidably connected to the fixed shaft 108 and passes through the fixed shaft 108. The pull rod 114 is rotatably connected to the pull shaft 113 and is located on one side of the pull shaft 113. The other end of the pull rod 114 is rotatably connected to the adjusting plate 111. When the ventilation duct needs to be disassembled, by pushing the pull shaft 113, the pull shaft 113 drives the pull rod 114 to move, thereby causing the pull rod 114 to push the adjusting plate 111 to rotate, so that the locking end of the adjusting plate 111 moves into the fixed shaft 108. Then, by sliding the locking cylinder 112 upward, the fixed shaft 108 can be rotated to below the lower sealing ring 103, thereby realizing the quick disassembly of the upper sealing ring 102 and the lower sealing ring 103.

[0028] When using the ventilation duct quick connection device of this embodiment, the ventilation duct is placed on the lower sealing ring 103. By rotating the upper sealing ring 102 on the rotating shaft 101, the upper sealing ring 102 and the lower sealing ring 103 are made to overlap. Then, by rotating the fixed shaft 108 on the connecting shaft 105, the fixed shaft 108 is engaged in the fixing port 115 on the upper sealing ring 102. Then, by pushing the engaging cylinder 112 along the outer wall of the fixed shaft 108, the bottom of the engaging cylinder 112 is engaged with the adjusting... When the locking end of the adjustment plate 111 contacts the positioning frame 109, the adjustment plate 111 rotates on the positioning frame 109. At the same time, the adjustment plate 111 also compresses the spring 110. As the locking cylinder 112 moves downward and reaches the locking groove 116, the adjustment plate 111 returns to its initial state under the elastic action of the spring 110, locking the adjustment plate 111 into the locking groove 116. This restricts the upper sealing ring 102 and the lower sealing ring 103, achieving a quick connection of the ventilation duct.

[0029] Second embodiment:

[0030] Based on the first embodiment, please refer to Figure 4 and Figure 5 , Figure 4 This utility model provides a ventilation duct and a structural schematic diagram of the ventilation duct. Figure 5 This is a structural schematic diagram of a ventilation duct provided by this utility model.

[0031] This utility model also provides a ventilation duct, including a duct 201, a plug 202, a sealing gasket 203, a magnetic block 204, and a magnetic sheet 205.

[0032] In this specific embodiment, the insertion post 202 is fixedly connected to the pipe 201 and located on one side of the pipe 201; the magnetic block 204 is fixedly connected to the insertion post 202 and located on the side of the insertion post 202 away from the pipe 201; the pipe 201 is provided with a through hole 206; the magnetic sheet 205 is fixedly connected to the pipe 201 and located inside the through hole 206; and the sealing gasket 203 is fixedly connected to the pipe 201 and located on one side of the pipe 201.

[0033] When using a ventilation duct of this embodiment, the sealing gasket 203 is used to improve the sealing performance of the duct 201, align the duct 201 with another duct 201, insert the insert post 202 into the through hole 206 of the other duct 201, and at the same time, the magnetic block 204 on the insert post 202 and the magnetic sheet 205 in the through hole 206 attract each other under the action of magnetic force, thereby achieving the effect of quick alignment of the duct 201.

[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A quick-connect device for ventilation ducts, comprising a rotating shaft, characterized in that, It also includes connecting components, The connecting component includes an upper sealing ring, a lower sealing ring, a stop plate, a connecting shaft, a fixing component, and a pulling component. The upper sealing ring is rotatably connected to the rotating shaft and is located on the outer wall of the rotating shaft. The lower sealing ring is rotatably connected to the rotating shaft and is located below the upper sealing ring. The stop plate is fixedly connected to the upper sealing ring and is located on one side of the upper sealing ring. The upper and lower sealing rings are provided with fixing openings. The connecting shaft is fixedly connected to the lower sealing ring and is located in the fixing opening. The fixing component is located on one side of the connecting shaft, and the pulling component is located on one side of the fixing component.

2. The ventilation duct quick connection device as described in claim 1, characterized in that, The fixing assembly includes a fixed shaft, a positioning frame, a spring, and an adjusting plate. The fixed shaft is rotatably connected to the connecting shaft and is located on the outer wall of the connecting shaft. The positioning frame is fixedly connected to the fixed shaft and is located on the inner wall of the fixed shaft. The adjusting plate is rotatably connected to the positioning frame and is located on the outer wall of the positioning frame. The spring is fixedly connected to the adjusting plate and is located on one side of the adjusting plate. The other end of the spring is fixedly connected to the fixed shaft.

3. The ventilation duct quick connection device as described in claim 2, characterized in that, The fixing component further includes a locking sleeve, which is slidably connected to the fixing shaft and located on the outer wall of the fixing shaft.

4. The ventilation duct quick connection device as described in claim 3, characterized in that, The pulling assembly includes a pulling shaft and a pulling rod. The pulling shaft is slidably connected to the fixed shaft and passes through the fixed shaft. The pulling rod is rotatably connected to the pulling shaft and is located on one side of the pulling shaft. The other end of the pulling rod is rotatably connected to the adjusting plate.

5. A ventilation duct, applied to a quick-connect device for a ventilation duct as described in claim 4, characterized in that, The device includes a pipe, a plug, a sealing gasket, a magnetic block, and a magnetic sheet. The plug is fixedly connected to the pipe and located on one side of the pipe. The magnetic block is fixedly connected to the plug and located on the side of the plug away from the pipe. The pipe has a through hole. The magnetic sheet is fixedly connected to the pipe and located inside the through hole. The sealing gasket is fixedly connected to the pipe and located on one side of the pipe.

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