Spiral duct

Abstract

The utility model relates to the technical field of spiral air pipes, in particular to a spiral air pipe which comprises an upper pipe body, a lower pipe body and a connecting assembly, and the connecting assembly comprises a connector, a connecting plug, a rotating head and a rotating clamping jaw. The upper pipe body and the lower pipe body are spliced to form the spiral air pipe, the spiral air pipe is used for air suction and exhaust of a central air conditioner, an industrial air supply and exhaust ventilation pipe and an environment-friendly system, when the upper pipe body and the lower pipe body are spliced, the inserting head is inserted into the connector, at the moment, a worker rotates the rotating clamping jaw to enable the rotating clamping jaw to clamp the connector, so that the inserting head and the connector are clamped, and finally the rotating head is rotated. When the connecting assembly is used for quickly splicing and dismounting the upper pipe body and the lower pipe body, a screw tool does not need to be used, and the connecting assembly is convenient and quick to mount and dismount. The operation is performed reversely, so that the upper pipe body and the lower pipe body can be dismounted, and the connecting assembly can be used for quickly splicing and dismounting the upper pipe body and the lower pipe body.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral air ducts, in particular to a spiral air duct. Background Art

[0002] A spiral air duct is a thin-walled pipe made of metal strip material wound into a spiral seam, mainly used for connecting the air circulation between two places to play the role of ventilation and air permeability. Spiral air ducts are widely used and are often used in central air conditioners, industrial air supply and exhaust ventilation ducts, environmental protection system suction and exhaust air ducts, etc. In general, spiral air ducts are selected in factory workshops to discharge harmful gases generated in the factory outdoors, and at the same time, convey outdoor air into the room. Since the factory area is relatively large, the gas exchange in the factory is generally achieved by connecting multiple spiral air ducts.

[0003] Currently, the prior art CN210830894U discloses a spiral air duct, which includes a plurality of spiral air ducts. Two adjacent spiral air ducts are respectively a first air duct and a second air duct. The first air duct and the second air duct are respectively provided with a first flange and a second flange. The first flange and the second flange are respectively provided with a plurality of first screw holes and second screw holes. A bolt is in threaded fit with the first screw hole, and the bolt is in threaded fit with both the first screw hole and the second screw hole; a convex edge is provided on the first flange to form a slot with the end face of the first flange; a positioning component is provided between the first flange and the second flange. The positioning component includes a jack and a plug. A positioning hole is formed in the second flange. When the plug is inserted into the positioning hole, the second screw hole is aligned with the first screw hole; the positioning component further includes an elastic member for driving the plug to be inserted into the positioning hole. This technology has the advantage of facilitating the alignment of the screw holes on the two flanges.

[0004] However, after the above spiral air duct is used for a long time, the screws are prone to rust, resulting in the inability to smoothly disassemble the flange with tools, and thus the disassembly and replacement of the spiral air duct are time-consuming and laborious, affecting the normal use of the spiral air duct. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a spiral air duct, aiming to solve the problem that when the existing spiral air duct is used for a long time, the screws rust and the flange is disassembled, resulting in time-consuming and laborious disassembly and replacement of the spiral air duct.

[0006] To achieve the above purpose, the utility model provides a spiral air duct, which includes an upper pipe body, a lower pipe body and a connecting component. The connecting component is respectively arranged between the upper pipe body and the lower pipe body. The connecting component includes a connecting head, a plug connector, a rotating head and a rotating claw; the connecting head is fixedly connected to the upper pipe body and is located at one end of the upper pipe body. The plug connector is fixedly connected to the lower pipe body and is located at one end of the lower pipe body. The rotating head is arranged outside the connecting head. The rotating claw is rotatably connected to the plug connector and is located outside the plug connector.

[0007] Wherein, the connector includes a mounting ring, a clamping ring and a rotating bolt. The mounting ring is fixedly connected to the upper pipe body and is located at one end of the upper pipe body. The clamping ring is slidably connected to the mounting ring and is located on the side of the mounting ring close to the upper pipe body. The rotating bolt is fixedly connected to the clamping ring, is threadedly connected to the mounting ring and penetrates through the mounting ring.

[0008] Wherein, the rotating claw includes a rotating rod, a spring clip and a pull rod. The rotating rod is rotatably connected to the insertion joint and is located outside the insertion joint. The spring clip is arranged on the side of the rotating rod away from the insertion joint. The pull rod is fixedly connected to the spring clip and penetrates through the rotating rod.

[0009] Wherein, the spring clip includes clip pieces and a spring. The spring is fixedly connected to the rotating rod and is located on the side of the rotating rod away from the insertion joint. The clip pieces are fixedly connected to the spring and are located on one side of the spring.

[0010] Wherein, the spiral air duct further includes a protection component, and the protection component is respectively arranged on one side of the upper pipe body and the lower pipe body.

[0011] Wherein, the protection component includes an isolation layer and a sealing gasket. The isolation layer is respectively arranged on the inner sides of the upper pipe body and the lower pipe body, and the sealing gasket is arranged on one side of the isolation layer.

[0012] A spiral air duct of the present utility model. The upper pipe body and the lower pipe body are spliced to form a spiral air duct, which is used for central air conditioners, industrial air supply and exhaust ventilation ducts, and air intake and exhaust in environmental protection systems. When the upper pipe body and the lower pipe body are spliced, the insertion joint is inserted into the connector. At this time, the worker rotates the rotating claw so that the rotating claw clamps the connector, thereby clamping the insertion joint and the connector tightly. Finally, the rotating head is rotated so that the connector clamps the insertion joint, that is, the splicing of the upper pipe body and the lower pipe body is completed. Reversing the above operations can disassemble the upper pipe body and the lower pipe body. The connection component is used for quickly splicing and disassembling the upper pipe body and the lower pipe body, without using screw tools, and the installation and disassembly are convenient and fast, solving the problem that when the existing spiral air duct is used for a long time, the screws are corroded and the flange is disassembled, resulting in time-consuming and laborious disassembly and replacement of the spiral air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0014] Figure 1 It is a schematic structural diagram of a spiral air duct according to the first embodiment of the present utility model.

[0015] Figure 2 It is a longitudinal sectional view of a spiral air duct along the clamping ring direction in the first embodiment of the present utility model.

[0016] Figure 3 It is a longitudinal sectional view of a spiral air duct along the clamping ring direction in the second embodiment of the present utility model.

[0017] In the figure: 101 - upper pipe body, 102 - lower pipe body, 103 - connection assembly, 104 - connection head, 105 - socket, 106 - rotating head, 107 - rotating claw, 108 - mounting ring, 109 - clamping ring, 110 - rotating bolt, 111 - rotating rod, 112 - spring clip, 113 - pull rod, 114 - clip, 115 - spring, 201 - protection assembly, 202 - isolation layer, 203 - gasket. Detailed implementation manners

[0018] The first embodiment of the present application is as follows:

[0019] Please refer to Figure 1 - Figure 2 , Figure 1 which is a structural schematic diagram of the present utility model, Figure 2 which is a longitudinal sectional view of the present utility model along the clamping ring direction, including an upper pipe body 101, a lower pipe body 102 and a connection assembly 103. The connection assembly 103 includes a connection head 104, a socket 105, a rotating head 106 and a rotating claw 107; the connection head 104 includes a mounting ring 108, a clamping ring 109 and a rotating bolt 110, the rotating claw 107 includes a rotating rod 111, a spring clip 112 and a pull rod 113, and the spring clip 112 includes a clip 114 and a spring 115. By the foregoing solution, the problem that when the existing spiral air duct is used for a long time, the screws are corroded and the flange is disassembled, resulting in time-consuming and laborious disassembly and replacement of the spiral air duct can be solved. It can be understood that the foregoing solution can be used in the scenarios of installation, disassembly and replacement of spiral air ducts.

[0020] For this specific implementation manner, the upper pipe body 101 and the lower pipe body 102 are spliced to form a spiral air duct, which is used for central air conditioners, industrial air supply and exhaust ventilation ducts, and air intake and exhaust of environmental protection systems.

[0021] Among them, the connecting component 103 is respectively arranged between the upper pipe body 101 and the lower pipe body 102. The connecting head 104 is fixedly connected to the upper pipe body 101 and is located at one end of the upper pipe body 101. The plug connector 105 is fixedly connected to the lower pipe body 102 and is located at one end of the lower pipe body 102. The rotating head 106 is arranged outside the connecting head 104. The rotating claw 107 is rotatably connected to the plug connector 105 and is located outside the plug connector 105. When the upper pipe body 101 and the lower pipe body 102 are spliced, the plug connector 105 is inserted into the connecting head 104. At this time, the worker rotates the rotating claw 107 so that the rotating claw 107 clamps the connecting head 104, thereby clamping the plug connector 105 and the connecting head 104 tightly. Finally, the rotating head 106 is rotated so that the connecting head 104 clamps the plug connector 105, that is, the splicing of the upper pipe body 101 and the lower pipe body 102 is completed. Reversing the above operations can disassemble the upper pipe body 101 and the lower pipe body 102. The connecting component 103 is used for quickly splicing and disassembling the upper pipe body 101 and the lower pipe body 102 without using screw tools, and the installation and disassembly are convenient and fast, solving the problem that when the existing spiral air duct is used for a long time, the screws rust and disassemble the flange, resulting in time-consuming and laborious disassembly and replacement of the spiral air duct.

[0022] Secondly, the mounting ring 108 is fixedly connected to the upper pipe body 101 and is located at one end of the upper pipe body 101. The clamping ring 109 is slidably connected to the mounting ring 108 and is located on the side of the mounting ring 108 close to the upper pipe body 101. The rotating bolt 110 is fixedly connected to the clamping ring 109, is threadedly connected to the mounting ring 108 and penetrates through the mounting ring 108. The mounting ring 108 provides an installation condition for the clamping ring 109 and the rotating bolt 110. The rotating bolt 110 is used to drive the clamping ring 109 to slide on the mounting ring 108. The clamping ring 109 is used to clamp and fix the plug connector 105, connecting the mounting ring 108 and the plug connector 105 to realize the splicing of the upper pipe body 101 and the lower pipe body 102.

[0023] Meanwhile, the rotating rod 111 is rotatably connected to the plug 105 and is located outside the plug 105. The spring clip 112 is disposed on the side of the rotating rod 111 away from the plug 105. The pull rod 113 is fixedly connected to the spring clip 112 and penetrates through the rotating rod 111. The rotating rod 111 provides an installation condition for the spring clip 112. When the upper pipe body 101 and the lower pipe body 102 are spliced, the spring clip 112 is pulled and the rotating rod 111 is rotated to move the spring clip 112 to the top of the mounting ring 108. At this time, the spring clip 112 is released, and the spring clip 112 resets to firmly press the mounting ring 108, strengthening the connection effect between the mounting ring 108 and the plug 105. The arrangement of the pull rod 113 facilitates the worker to pull the clip 114 to compress the spring 115.

[0024] In addition, the spring 115 is fixedly connected to the rotating rod 111 and is located on the side of the rotating rod 111 away from the plug 105. The clip 114 is fixedly connected to the spring 115 and is located on one side of the spring 115. The clip 114 clamps the mounting ring 108 through the reaction of the spring 115, thereby strengthening the connection effect between the mounting ring 108 and the plug 105.

[0025] When the upper pipe body 101 and the lower pipe body 102 are spliced, the plug 105 is inserted into the connector 104. At this time, the clip 114 is pulled through the pull rod 113 to compress the spring 115, and the rotating rod 111 is rotated to move the spring 115 and the clip 114 to the top of the mounting ring 108. At this time, the clip 114 is released, and the spring clip 115 resets to push the clip 114 to firmly press the mounting ring 108, thereby clamping the plug 105 and the connector 104. Finally, the rotating head 106 is rotated so that the rotating bolt 110 pushes the clamping ring 109 close to the connector 104 and clamps the plug 105, that is, the splicing of the upper pipe body 101 and the lower pipe body 102 is completed. Reversing the above operations can disassemble the upper pipe body 101 and the lower pipe body 102.

[0026] The second embodiment of the present application is as follows:

[0027] On the basis of the first embodiment, please refer to Figure 3 , Figure 3 which is a longitudinal sectional view of the present utility model along the direction of the clamping ring. The spiral air duct of this embodiment further includes a protection component 201, and the protection component 201 includes an isolation layer 202 and a sealing gasket 203.

[0028] For this specific embodiment, the protection component 201 is respectively arranged on one side of the upper pipe body 101 and the lower pipe body 102. The arrangement of the protection component 201 protects the upper pipe body 101 and the lower pipe body 102, preventing the discharged high-temperature waste gas from damaging the upper pipe body 101 and the lower pipe body 102, and enhancing the sealing performance of the connection between the upper pipe body 101 and the lower pipe body 102 to avoid gas leakage after the spiral air duct has been used for a long time.

[0029] Among them, the isolation layer 202 is respectively arranged inside the upper pipe body 101 and the lower pipe body 102, and the sealing gasket 203 is arranged on one side of the isolation layer 202. The arrangement of the sealing gasket 203 enhances the sealing performance of the connection between the upper pipe body 101 and the lower pipe body 102 to avoid gas leakage after the spiral air duct has been used for a long time. The isolation layer 202 increases the heat insulation effect of the upper pipe body 101 and the lower pipe body 102, preventing the discharged high-temperature waste gas from damaging the upper pipe body 101 and the lower pipe body 102, and improving the service life of the spiral air duct.

[0030] What is disclosed above is only a preferred embodiment of a spiral air duct of the present application, and it cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A spiral air duct, comprising an upper tube body and a lower tube body, characterized in that: It also includes a connecting assembly, which is respectively arranged between the upper tube body and the lower tube body, and includes a connecting head, a plug connector, a rotating head and a rotating claw; The connecting head is fixedly connected to the upper tube body and is located at one end of the upper tube body, the plug connector is fixedly connected to the lower tube body and is located at one end of the lower tube body, the rotating head is arranged on the outside of the connecting head, and the rotating claw is rotatably connected to the plug connector and is located on the outside of the plug connector.

2. A spiral air duct as claimed in claim 1, characterized in that: The connecting head includes a mounting ring, a clamping ring and a rotating bolt. The mounting ring is fixedly connected to the upper tube body and is located at one end of the upper tube body. The clamping ring is slidably connected to the mounting ring and is located on a side of the mounting ring close to the upper tube body. The rotating bolt is fixedly connected to the clamping ring, threadedly connected to the mounting ring, and passes through the mounting ring.

3. A spiral air duct as claimed in claim 2, characterized in that: The rotating claw includes a rotating rod, a spring clip and a pull rod. The rotating rod is rotatably connected to the plug connector and is located outside the plug connector. The spring clip is arranged on the side of the rotating rod away from the plug connector. The pull rod is fixedly connected to the spring clip and passes through the rotating rod.

4. A spiral air duct as claimed in claim 3, characterized in that: The spring clip comprises a clip and a spring, wherein the spring is fixedly connected to the rotating rod and is located at a side of the rotating rod away from the plug connector, and the clip is fixedly connected to the spring and is located at one side of the spring.

5. A spiral air duct as claimed in claim 4, characterized in that: The spiral air duct also includes a protection component, and the protection component is respectively arranged on one side of the upper tube body and the lower tube body.

6. A spiral air duct as claimed in claim 5, characterized in that: The protective component includes an insulating layer and a sealing gasket. The insulating layers are respectively arranged on the inner sides of the upper tube body and the lower tube body, and the sealing gasket is arranged on one side of the insulating layer.

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