Air pipe adapter piece occupying small space
By designing modular duct connectors with variable cross-section pipe sections, reversing sections, and elliptical pipe sections, the problems of space limitations and complex manufacturing in existing technologies have been solved, enabling large ventilation cross-sectional area connections and low-cost manufacturing, thereby improving ventilation effect and airflow smoothness.
Patent Information
- Application Number
- CN202423070129.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing duct adapters are difficult to connect with large ventilation cross-sectional areas in confined spaces, and their complex manufacturing process leads to high costs.
A duct adapter was designed, comprising a variable cross-section pipe section, a reversing section, and an elliptical pipe section. It adopts a modular structure, connecting the lower and upper shells with fasteners. Combined with guide vanes and flow convergent vanes, it optimizes the airflow direction to reduce space occupation and simplify manufacturing.
It enables connections with large ventilation cross-sectional areas in confined spaces, reducing manufacturing costs and improving ventilation and airflow smoothness.
Smart Images
Figure CN223610332U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a wind pipe adapter spare of small space occupation field, concretely relates to a wind pipe adapter spare of small space occupation. BACKGROUND
[0002] At present, in the application occasion of room ventilation, the upper part of the ceiling needs to be arranged with a wind pipe (usually a hose), a ventilation hole is formed on the ceiling, a ventilation interface is installed at the ventilation hole, and the wind pipe is connected with the ventilation interface through an adapter, which can be in the shape of an elbow. One end (lower end) of the adapter is connected with the ventilation interface, and the other end corresponding to the adapter is connected with the wind pipe. However, due to the limited distance from the ceiling to the top of the room, if the inner diameter of the other end corresponding to the adapter is relatively large, it will interfere with the upper part of the ceiling or the top of the room, which is not conducive to arranging the wind pipe with a large ventilation cross-sectional area on the upper part of the ceiling. Some ventilation interfaces are in the shape of a long rectangle, that is, the ventilation hole on the ceiling is in the shape of a long rectangle, and the wind pipe is a circular pipe (in a free state). Therefore, the variable cross-section structure of the above-mentioned adapter is complex, which leads to the need for a complex core-pulling structure during the injection molding of the adapter with an integrated structure, resulting in high production cost. Therefore, it is necessary to improve the above-mentioned adapter of the prior art. SUMMARY
[0003] The utility model aims at overcoming the defects of the prior art and providing a wind pipe adapter spare of small space occupation, which occupies relatively small space on the upper side of the ceiling in the up-down direction and is relatively easy to manufacture.
[0004] The utility model discloses a wind pipe adapter spare of small space occupation, which comprises a horizontal pipe and a vertical pipe for connecting a ceiling ventilation interface.
[0005] The utility model discloses a wind pipe adapter spare of small space occupation, which comprises a horizontal pipe and a vertical pipe for connecting a ceiling ventilation interface.
[0006] Preferably, the lower end inner wall of the upper casing is formed with a guide vane, the guide vane is arranged on the upper side of the vertical pipe, the guide vane is vertically arranged, and the guide vanes are arranged in a spaced manner along a direction parallel to the long side of the vertical pipe.
[0007] Preferably, the variable cross-section pipe section is provided with a vane for guiding airflow to the elliptical pipe section.
[0008] Preferably, the vertical pipe is provided with a long-side connecting beam.
[0009] Preferably, the upper edge of the lower casing is provided with an upper convex edge, and the lower edge of the upper casing is provided with an inner step, and the upper convex edge is adapted to connect the inner step.
[0010] Preferably, the inner wall of the upper casing is provided with a baffle, and the lower end of the baffle is located on the inner side of the upper convex edge.
[0011] Preferably, the lower casing is provided with a threaded sleeve portion which is integrated with the inner wall of the lower casing, and the upper casing is provided with a hole sleeve portion which is integrated with the inner wall of the upper casing, and a screw is installed in the hole sleeve portion and screwed with the threaded sleeve portion.
[0012] Compared with the prior art, the utility model has the advantages that: the one end position of the variable cross-section pipe section and the reversing section is higher than the one end position of the variable cross-section pipe section and the elliptical pipe section, which is beneficial to make the air pipe adapter of the utility model occupy a relatively small space on the upper side of the ceiling in the up-down direction; the horizontal pipe includes a lower casing and an upper casing, the lower casing and the upper casing are connected through fasteners, and the upper end of the vertical pipe is integrated with the lower casing, which is beneficial to make the air pipe adapter of the utility model relatively easy to manufacture. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a three-dimensional structure schematic view of the air pipe adapter of the utility model combined with a ceiling ventilation interface and a ceiling.
[0014] Figure 2 It is a bottom view three-dimensional structure schematic view of the air pipe adapter of the utility model.
[0015] Figure 3 It is a front view structure schematic view of the air pipe adapter of the utility model.
[0016] Figure 4 It is an exploded view schematic view of the air pipe adapter of the utility model in the top view direction.
[0017] Figure 5 It is an exploded view schematic view of the air pipe adapter of the utility model in the bottom view direction.
[0018] Figure 6 It is a sectional view structure schematic view of the air pipe adapter of the utility model in the left view direction.
[0019] Figure 7 It is a sectional view structure schematic view of the air pipe adapter of the utility model in the right view direction. Figure 6 It is a sectional view structure schematic view of the air pipe adapter of the utility model in the right view direction.
[0020] Figure 8 This is a top-view three-dimensional structural diagram of the duct adapter of this utility model.
[0021] Figure 9 This is a top-view three-dimensional structural diagram of a ceiling ventilation interface.
[0022] Labeling Explanation: Vertical pipe 1; Long side connecting beam 101; Clip 102; Horizontal pipe 2; Variable cross-section pipe section 21; Elliptical pipe section 22; Reversing section 23; Lower shell 201; Upper convex edge 2011; Screw sleeve 2012; Upper shell 202; Inner step 2021; Hole sleeve 2022; Baffle 2023; Support rod 4; Concentrator 5; Guide vane 6; Ceiling ventilation interface 98; Hook 981; Ceiling 99. Detailed Implementation
[0023] The present invention will now be further described with reference to the accompanying drawings.
[0024] This utility model provides a space-saving duct adapter, such as... Figures 1 to 6 As shown, the system includes a horizontal pipe 2 and a vertical pipe 1 for connecting to the ceiling ventilation interface 98. The horizontal pipe 2 has a variable cross-section pipe section 21, a reversing section 23, and an elliptical pipe section 22 for connecting to the duct. The vertical pipe 1 is rectangular (in a top view), meaning the cross-section of the vertical pipe 1 for airflow is rectangular. The upper end of the vertical pipe 1 is connected to one end of the variable cross-section pipe section 21 via the reversing section 23, and the elliptical pipe section 22 is connected to the corresponding other end of the variable cross-section pipe section 21. In other words, the reversing section 23 guides the airflow from vertical flow to approximately horizontal flow (or from approximately horizontal flow to vertical flow). The airflow achieves an approximately 90° reversal as it passes through the reversing section 23. Thus, as... Figure 3 As shown, the reversing section 23 is approximately a 90° arc. One end of the aforementioned variable cross-section pipe section 21 is approximately rectangular, while the corresponding other end of the aforementioned variable cross-section pipe section 21 is elliptical. Figure 2 and Figure 8 As shown, the minor axis of the elliptical tube segment 22 is vertically positioned, meaning that in practical applications, the major axis of the elliptical tube segment 22 is horizontally positioned, i.e., the elliptical tube segment 22 is horizontally placed. Figure 3 As shown, the end where the variable cross-section pipe section 21 connects to the reversing section 23 is higher than the end where the variable cross-section pipe section 21 connects to the elliptical pipe section 22. That is to say, in... Figure 3 In the middle, the midpoint of the left end of the variable cross-section pipe section 21 in the vertical direction is higher than the midpoint of the right end of the variable cross-section pipe section 21 in the vertical direction, thus causing the elliptical pipe section 22 to be set lower. Figure 3 In this way, the top of the elliptical tube segment 22, the top of the variable cross-section tube segment 21, and the upper end of the reversing segment 23 can be made approximately flush. For example... Figures 3 to 5As shown, the transverse pipe 2 comprises a lower split shell 201 and an upper split shell 202, the lower split shell 201 and the upper split shell 202 are connected through fasteners, in other words, the transverse pipe 2 is a split structure of upper and lower halves, the upper end of the vertical pipe 1 is integrated with the lower split shell 201, so when the lower split shell 201 and the upper split shell 202 are assembled through the above-mentioned fasteners, the vertical pipe 1 is also assembled and fixed, which is conducive to the convenient assembly of the air pipe adapter. Figure 4 and Figure 5 As shown, since the air pipe adapter of the utility model is a split structure, the lower split shell 201 and the upper split shell 202 can be made by independent molds respectively, and the lower split shell 201 and the upper split shell 202 are both open structures, so the corresponding mold structure is relatively simple, which makes the air pipe adapter of the utility model relatively easy to manufacture. Figure 5 As shown, the lower end of the vertical pipe 1 is formed with a buckle groove 102, as shown, Figure 9 As shown, the edge part of the ceiling ventilation interface 98 is formed with a buckle hook 981, the buckle hook 981 buckles the corresponding buckle groove 102, specifically, the lower end of the vertical pipe 1 is attached to the ceiling ventilation interface 98, so that each buckle hook 981 is inserted into the corresponding buckle groove 102, and then the vertical pipe 1 is pushed along the long edge direction of the vertical pipe 1, so that the buckle hook 981 hooks the edge of the corresponding buckle groove 102. Air flow can pass through the ceiling ventilation interface 98 (air flow passes through the ceiling 99) to reach the vertical pipe 1, and then the air flow is turned by 90 degrees through the guidance of the reversing section 23, and then flows through the variable cross-section pipe section 21 to reach the elliptical pipe section 22, and then the air flow flows into the air pipe through the elliptical pipe section 22.
[0025] Since the minor axis of the elliptical pipe section 22 is vertically arranged, the ventilation cross section of the elliptical pipe section 22 can be transversely enlarged, which avoids increasing the space occupied by the air pipe adapter on the upper side of the ceiling in the up-down direction due to the increase of the ventilation cross-sectional area of the elliptical pipe section 22, that is, the air pipe adapter of the utility model occupies relatively small space on the upper side of the ceiling in the up-down direction, and since the position of the end of the variable cross-section pipe section 21 connected with the reversing section 23 is higher than the end of the variable cross-section pipe section 21 connected with the elliptical pipe section 22, it is conducive to relatively reducing the overall height of the air pipe adapter of the utility model; when the air pipe is a hard pipe, the cross-sectional shape of the air pipe can be elliptical, and when the air pipe is a soft pipe, the end of the air pipe can be flattened and sleeved to the elliptical pipe section 22, and the body of the air pipe can also be flattened (approximately elliptical) and arranged between the ceiling 99 and the indoor roof. The above-described air pipes can have a relatively large ventilation cross-sectional area, so the air pipe adapter of the utility model is conducive to arranging air pipes with a large ventilation cross-sectional area above the ceiling, which is conducive to enhancing the ventilation effect.
[0026] Further, as shown, Figure 2 and Figure 5As shown, the inner wall of the lower end of the upper casing 202 is formed with a deflector 6, which is arranged on the upper side of the vertical pipe 1, that is, the deflector 6 is formed at the lower end of the reversing section 23, and the deflector 6 is vertically arranged, and the deflector 6 is arranged in a direction parallel to the long side of the vertical pipe 1, that is, in the visual direction of the reversing section 23, the deflector 6 is arranged in a front-rear direction (the long side of the rectangular vertical pipe 1 extends in the front-rear direction), and because the deflector 6 is vertically arranged, the airflow flowing in the vertical pipe 1 in the up-down direction is combed by the deflector 6, which can reduce the turbulence in the air pipe adapter, and is beneficial to the smooth airflow through the air pipe adapter. Figure 3
[0027] Further, as shown in Figure 2 and Figures 4 to 6 , the variable cross-section pipe section 21 is provided with a flow concentrator 5 for guiding the airflow to the elliptical pipe section 22, the flow concentrator 5 is arranged vertically, for example, the number of flow concentrators 5 is four, and the flow concentrator 5 gradually approaches the center of the elliptical pipe section 22 from left to right, because the long side of the vertical pipe 1 extends in the front-rear direction, and the vertical pipe 1 has a relatively long structure, in order to make the vertical pipe 1 have enough airflow passing cross-sectional area, so the width of the vertical pipe 1 in the front-rear direction is obviously larger than the major axis of the elliptical pipe section 22, so that the airflow flowing through the variable cross-section pipe section 21 gradually approaches the center of the elliptical pipe section 22 by the flow guiding effect of the flow concentrator 5, so that the airflow flows orderly in the variable cross-section pipe section 21, and when the airflow flows from the elliptical pipe section 22 to the vertical pipe 1, the airflow can be uniformly distributed and flowed to the vertical pipe 1 by the guiding effect of the flow concentrator 5. As shown in Figure 4 and Figure 5 , each flow concentrator 5 can be composed of two parts, the upper part of the flow concentrator 5 is integrally connected with the inner wall of the upper casing 202, and the lower part of the flow concentrator 5 is integrally connected with the inner wall of the lower casing 201.
[0028] Further, as shown in Figure 2 and Figure 5 , the vertical pipe 1 is formed with a long side connecting beam 101, in other words, the left and right ends of the long side connecting beam 101 are integrally connected with the two long sides of the vertical pipe 1, and the long side connecting beam 101 is vertically arranged, so the long side connecting beam 101 has little effect on the airflow, and by arranging the long side connecting beam 101, the structural rigidity of the vertical pipe 1 is improved, which can avoid the deformation of the two long sides of the vertical pipe 1 relative to the opening or closing, and the long side connecting beam 101 can be distributed along the long side of the vertical pipe 1.
[0029] Further, as shown in Figure 6 and Figure 7 As shown, the upper edge of the lower assembling shell 201 is formed with an upper convex edge 2011, and the lower edge of the upper assembling shell 202 is formed with an inner step 2021, the upper convex edge 2011 is adapted to connect the inner step 2021, in other words, the upper convex edge 2011 is arranged inwardly, through the setting of the concave-convex plug-in structure, the lower assembling shell 201 and the upper assembling shell 202 are positioned to each other, and the connecting position of the upper convex edge 2011 and the inner step 2021 is the splicing position of the horizontal pipe 2.
[0030] Further, as shown in Figure 6 and Figure 7 The inner wall of the upper assembling shell 202 is formed with a baffle 2023, the lower end of the baffle 2023 is arranged inwardly of the upper convex edge 2011, so as to correspond to the insertion of the upper convex edge 2011 into the clamping groove surrounded by the inner step 2021 and the baffle 2023, and the positioning effect of the upper convex edge 2011 is enhanced.
[0031] Further, as shown in Figure 6 The lower assembling shell 201 is formed with a screw sleeve part 2012 which is integrated with the inner wall of the lower assembling shell 201, and the upper assembling shell 202 is formed with a hole sleeve part 2022 which is integrated with the inner wall of the upper assembling shell 202, the hole sleeve part 2022 is installed with a screw, and the screw is screwed with the screw sleeve part 2012, that is to say, the fastener mentioned above is the screw mentioned above, specifically, the screw sleeve part 2012 is formed with a threaded hole, the hole sleeve part 2022 is formed with a through hole, the screw passes through the through hole from top to bottom and is connected with the threaded hole, so as to stably fix the lower assembling shell 201 and the upper assembling shell 202.
[0032] As shown in Figure 1 and Figure 2 The variable cross-section pipe section 21 is screwed with a support rod 4 at the bottom of one end close to the oval pipe section 22, and the lower end of the support rod 4 can be attached to the upper side of the ceiling 99.
Claims
1. A wind duct adapter having a small footprint, characterized by: The utility model provides a ventilation pipe, which comprises a horizontal pipe (2) and a vertical pipe (1) for connecting a ceiling ventilation interface (98), the horizontal pipe (2) is formed with a variable cross-section pipe section (21), a reversing section (23) and an oval pipe section (22) for connecting a ventilation pipe, the vertical pipe (1) is rectangular, the upper end of the vertical pipe (1) is connected to one end of the variable cross-section pipe section (21) through the reversing section (23), the oval pipe section (22) is connected to the other end of the variable cross-section pipe section (21) in correspondence, the short axis of the oval pipe section (22) is vertically arranged, the position of the end of the variable cross-section pipe section (21) connected to the reversing section (23) is higher than that of the end of the variable cross-section pipe section (21) connected to the oval pipe section (22), the horizontal pipe (2) comprises a lower casing (201) and an upper casing (202), the lower casing (201) and the upper casing (202) are connected through fasteners, and the upper end of the vertical pipe (1) is integrated with the lower casing (201).
2. The duct adapter of claim 1, wherein: A guide vane (6) is formed on the inner wall of the lower end of the upper casing (202), the guide vane (6) is arranged on the upper side of the vertical pipe (1), and the guide vane (6) is vertically arranged and arranged in a spaced manner along a direction parallel to the long side of the vertical pipe (1).
3. The duct adapter according to claim 1 or 2, characterized in that: A flow converging vane (5) is arranged in the variable cross-section pipe section (21) for guiding airflow to the oval pipe section (22).
4. The duct adapter according to claim 1 or 2, characterized in that: A long-side connecting beam (101) is formed in the vertical pipe (1).
5. The duct adapter according to claim 1 or 2, characterized in that: An upper convex edge (2011) is formed at the upper edge of the lower casing (201), an inner step (2021) is formed at the lower edge of the upper casing (202), and the upper convex edge (2011) is adapted to be connected to the inner step (2021).
6. The duct adapter of claim 5, wherein: A baffle (2023) is formed on the inner wall of the upper casing (202), and the lower end of the baffle (2023) is arranged on the inner side of the upper convex edge (2011).
7. The duct adapter of claim 6, wherein: The lower casing (201) is formed with a screw sleeve portion (2012) integrated with the inner wall of the lower casing (201), the upper casing (202) is formed with a hole sleeve portion (2022) integrated with the inner wall of the upper casing (202), a screw is arranged in the hole sleeve portion (2022), and the screw is screwed with the screw sleeve portion (2012).