Multipurpose wind path connecting device

Abstract

The utility model relates to a multipurpose air path connecting device which comprises a box-shaped connecting air duct with two open ends, the end faces of the two ends of the connecting air duct are connected with a first piece and a second piece respectively, and at least the end face, connected with the first piece, of the connecting air duct is provided with a plurality of first installation ribs and second installation ribs which are arranged in a criss-cross mode. And the first mounting rib, the second mounting rib and the end face frame of the connecting air duct are movably connected through a transverse or longitudinal adjustable structure so as to form a connecting interface connected with the first piece. The device is simple in structure, convenient to install, capable of being compatible with products with various air outlet sizes and various air outlet types, capable of meeting the air volume and air outlet uniformity testing requirements of the products, and high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a multi-purpose air duct connection device. Background Art

[0002] For air supply equipment, it is generally necessary to test the air volume of the air duct and the air outlet. The current test method is to use test devices such as an anemometer and a fairing for testing. However, due to the wide variety of specifications of air supply equipment, the existing test devices cannot meet the air volume test requirements of different specifications of air supply equipment at the same time. It is necessary to design separately according to the specific size of a certain specific product, and the designed tooling can only be applied to the single-function test of this product, resulting in high test costs. Content of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a multi-purpose air duct connection device with a simple structure, convenient operation, which can be easily connected to various specifications of equipment and reduce costs.

[0004] To solve the above technical problem, the basic concept of the technical solution adopted by the utility model is:

[0005] A multi-purpose air duct connection device includes a box-shaped connection air duct with both ends open. The two end faces of the connection air duct are respectively connected to a first piece and a second piece. At least on the end face where the connection air duct is connected to the first piece, a plurality of first mounting ribs and second mounting ribs arranged vertically and horizontally are installed. The first mounting ribs, the second mounting ribs and the end face frame of the connection air duct are movably connected through a lateral or longitudinal adjustable structure to form a connection interface for connecting to the first piece.

[0006] Further, the area between the connection interface and the end face frame is blocked by installing a blocking plate.

[0007] Further, the blocking plate is made of a light and cuttable material.

[0008] Further, the lateral or longitudinal adjustable structure is a plurality of oblong mounting holes extending laterally or longitudinally provided on the end face frame, the first mounting ribs and the second mounting ribs.

[0009] Further, at least two rows of oblong mounting holes are provided on each side of the end face frame, and at least one row of oblong mounting holes is located inside the connection air duct. The first mounting ribs and the second mounting ribs are respectively fixedly connected to the end face frame from the outside and the inside of the end face frame.

[0010] Further, the first mounting ribs and the second mounting ribs adopt profiles with an H-shaped cross-section, and oblong mounting holes extending along the length direction are provided on both side edges of the profiles.

[0011] Further, a flow guiding device is installed in the connecting air duct.

[0012] Further, the connecting air duct is composed of a split first air duct and a second air duct. The peripheries of the first air duct and the second air duct are provided with installation flange edges, and are fixedly connected by fasteners. The flow guiding device is installed at the connection of the first air duct and the second air duct.

[0013] Further, the periphery of the flow guiding device is provided with an installation edge, and the installation edge is clamped and fixed between the installation flange edges of the first air duct and the second air duct, and is fixedly connected together by fasteners.

[0014] Further, the flow guiding device is a perforated plate or a grid plate.

[0015] In summary, compared with the prior art, a multi-purpose air duct connection device provided by the present utility model has the following advantages:

[0016] (1) By means of the adjustable first installation rib and second installation rib of the present utility model, the connection interface area connected to the connection end of the air supply device or air supply product can be adjusted, so that the device can be compatible with products of various outlet sizes, and can also be used for various air outlet types of horizontal air inlet and outlet and vertical air inlet and outlet, meeting the requirements of its air volume and air outlet uniformity test, and having strong versatility.

[0017] (2) The structure of the present utility model is simple, the installation is convenient, and the cost is low.

[0018] (3) By arranging a flow guiding device in the connecting air duct of the present utility model, the air outlet is made uniform, the accuracy of the air volume test is improved, and the problems of inaccurate air outlet speed and air volume test of the product to be tested are solved.

[0019] (4) For the situation where the air outlet uniformity of multiple air supply products needs to be tested, the present utility model can also adjust the air duct resistance by replacing the flow guiding devices with different effective passing areas, and then adjust the air volume of each air duct and air outlet, so as to test the air volume and uniformity of the air duct or air outlet product under various air volumes, further improving the versatility of the device.

[0020] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0021] The accompanying drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts.

[0022] In the accompanying drawings:

[0023] Figure 1 is a schematic diagram of the usage state of the connection device according to the first embodiment of the present utility model;

[0024] Figure 2 is a three-dimensional structure diagram of the connection device according to the first embodiment of the present utility model;

[0025] Figure 3 is a schematic diagram of the connection interface and the plugging area of the connection device according to the first embodiment of the present utility model;

[0026] Figure 4 is an exploded view of the structure of the connection device according to the first embodiment of the present utility model;

[0027] Figure 5 is a schematic diagram of the usage state of the connection device according to the second embodiment of the present utility model.

[0028] In the figure:

[0029] Air supply product 1, test device 2, connection air duct 3, end face frame 31, first air duct 32, second air duct 33, installation flange edge 34, first installation rib 4, second installation rib 5, connection interface 6, non-connection area 7, plugging plate 8, first oblong installation hole 9, second oblong installation hole 10, third oblong installation hole 11, fourth oblong installation hole 12, installation hole 13, flow guiding device 14, air supply equipment 15.

[0030] It should be noted that the accompanying drawings and the text description are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Embodiment 1:

[0035] As Figures 1 to 4 shown, the present utility model provides a multi-purpose air duct connection device for connecting a first piece and a second piece. As Figure 1 shown in

[0036] In this embodiment, the multi-purpose air duct connection device includes a box-shaped connection air duct 3 with open ends at both ends. The end faces at both ends of the connection air duct 3 are respectively connected to the air supply product 1 to be tested and the test device 2. The cross-sectional shape of the connection air duct 3 is determined according to the test requirements of the air supply product 1 to be tested and the test device 2 and the interface shape. For example, it can adopt a square shape as Figures 1 to 4 shown, or other shapes such as a circular shape.

[0037] In this embodiment, at least on the end face of the connection air duct 3 connected to the air supply product 1 to be tested, a plurality of first mounting ribs 4 and second mounting ribs 5 arranged vertically and horizontally are installed. The end face of the connection air duct 3 has an end face frame 31. The first mounting ribs 4, the second mounting ribs 5 and the end face frame 31 are movably connected through a horizontally or vertically adjustable structure to form a connection interface 6 for connecting with the air supply product 1 to be tested.

[0038] As Figures 2 to 4 shown, in this embodiment, preferably, two first mounting ribs 4 and two second mounting ribs 5 are installed on the end face of the connection air duct 3. The two first mounting ribs 4 are installed in parallel along the horizontal direction, and the two second mounting ribs 5 are installed in parallel along the vertical direction. After the two first mounting ribs 4 and the two second mounting ribs 5 are installed, a square area in the middle is formed, which is the connection interface 6 for connecting with the connection end of the air supply product 1 to be tested.

[0039] In this embodiment, further, the non-connection area 7 between the connection interface 6 and the end face frame 31 is blocked and shielded by installing a blocking plate 8. That is, after the connection end of the air supply product 1 is fixedly connected to the connection interface 6, the other areas are completely blocked and shielded by the blocking plate 8, so as to ensure that the air output by the air supply product 1 to be tested all passes through the connection air duct 3 and enters the test device 2, without air leakage from the non-connection area 7.

[0040] In this embodiment, more preferably, the blocking plate 8 is made of a light and cuttable material. For example, the blocking plate 8 can be made of materials such as a curtain or a foam board, which is convenient for the operator to cut and block according to the area of the non-connection area 7 and is also beneficial to controlling the material cost. The blocking plate 8 can be fixed to the first mounting rib 4, the second mounting rib 5 and the end face frame 31 by pasting, so that it can be blocked and the sealing of the blocked area can be ensured. Of course, the blocking plate 8 can also be fixedly connected to the first mounting rib 4, the second mounting rib 5 and the end face frame 31 by fasteners such as bolts. In order to ensure the seal, a sealing gasket or a sealing ring is installed on one side of the blocking plate 8.

[0041] In this embodiment, preferably, the horizontal and vertical adjustable structures are oblong mounting holes extending horizontally or vertically on the end face frame 31, the first mounting rib 4 and the second mounting rib 5.

[0042] Specifically, a first oblong mounting hole 9 extending along the length direction of the first mounting rib 4, a second oblong mounting hole 10 extending along the length direction of the second mounting rib 5, and a third oblong mounting hole 11 and a fourth oblong mounting hole 12 extending horizontally and vertically respectively on the end face frame 31 of the connection air duct 3 are provided. Among them, the structures of the first mounting rib 4 and the second mounting rib 5 are exactly the same, and they can be installed horizontally or vertically on the connection air duct 3 at will, which is beneficial to reducing the installation difficulty and improving the installation efficiency.

[0043] In this embodiment, more preferably, both the first mounting rib 4 and the second mounting rib 5 adopt profiles with an H-shaped cross section to increase the overall structural strength of the first mounting rib 4 and the second mounting rib 5. The first oblong mounting hole 9 and the second oblong mounting hole 10 extending along the length direction are provided on both side edges of the profile.

[0044] In this embodiment, further preferably, at least two rows of oblong mounting holes are provided on each side of the end face frame 31. Specifically, two rows of third oblong mounting holes 11 are provided on the upper and lower horizontal sides of the end face frame 31. The two rows of third oblong mounting holes 11 extend horizontally and are arranged radially along the connection air duct 3; two rows of fourth oblong mounting holes 12 are provided on the left and right vertical sides of the end face frame 31. The two rows of fourth oblong mounting holes 12 extend vertically and are arranged radially along the connection air duct 3.

[0045] In this embodiment, it is further preferably that the end face frame 31 has a part located outside the connecting air duct 3 and a part located inside the connecting air duct 3, that is, a row of third oval mounting holes 11 and a row of fourth oval mounting holes 12 on the end face frame 31 located inside are disposed inside the connecting air duct 3. The first mounting rib 4 is fixedly connected to the fourth oval mounting hole 12 on the end face frame 31 from the outside of the end face frame 31 through bolts, and the second mounting rib 5 is fixedly connected to the third oval mounting hole 11 on the end face frame 31 from the inside of the end face frame 31 through bolts. In this way, after the first mounting rib 4 and the second mounting rib 5 are installed, the plane where their connection surface is located is in the same plane as the end face frame 31, which is convenient for the installation of the plugging plate 8.

[0046] In this embodiment, for the convenience of fixedly connecting with the end face frame 31, a circular mounting hole 13 can also be separately provided at each end of the first mounting rib 4 and the second mounting rib 5, and is fixedly connected to the third oval mounting hole 11 and the fourth oval mounting hole 12 on the end face frame 31 through bolts.

[0047] During installation, the operator slides the two first mounting ribs 4 up and down and slides the two second mounting ribs 5 left and right according to the size of the connection end of the air supply product 1, adjusts the fixed connection positions between the two first mounting ribs 4 and the two second mounting ribs 5 and the end face frame 31, that is, adjusts the relative positions of the two first mounting ribs 4 and the two second mounting ribs 5 during installation. After determining the positions, they are fastened with bolts, and a connection interface 6 is formed between the two first mounting ribs 4 and the two second mounting ribs 5. The connection end of the air supply product 1 is fixedly connected to the connection interface 6 through bolts, and the remaining non-connection areas 7 are plugged and shielded by the plugging plate 8. By adjusting the fixed connection positions between the two first mounting ribs 4 and the two second mounting ribs 5 and the end face frame 31, the device can be compatible with the installation applications of various size types of products. A sealing gasket can be installed at the connection end of the air supply product 1 to ensure the sealing effect at the connection.

[0048] During testing, since the air outlet direction of the air supply product 1 is uncertain and it cannot be guaranteed to blow out in the axial direction, it may concentrate in a certain local area such as the lower part, which will greatly affect the accuracy of the test device 2 in detecting the air volume. Therefore, in this embodiment, it is further preferred that a flow guiding device 14 is also installed in the connecting air duct 3. Preferably, the flow guiding device 14 is a flow guiding plate, and more preferably a perforated plate or a grid plate is used. The purpose is to adjust the air flow flowing out of the air supply product 1 and ensure the uniformity of the air flow at the air outlet section (i.e., the side connected to the test device 2) after passing through the flow guiding device 14, so as to ensure the accuracy of the tests such as the air volume or air speed of the test device 2. When it is necessary to measure the uniformity of multiple air ducts and air outlets under various air volumes, the air duct resistance can also be adjusted by replacing the flow guiding device 14 with different effective passing areas, and then the air volume of each air duct and air outlet can be adjusted, so as to test the air volume and uniformity of the air duct or air outlet product under various air volumes.

[0049] In this embodiment, in order to facilitate the disassembly and replacement of the flow guiding device 14, preferably, the connecting air duct 3 is composed of a split first air duct 32 and a second air duct 33. The first air duct 32 and the second air duct 33 are provided with mounting flange edges 34 around them and are fixedly connected by fasteners. The flow guiding device 14 is installed at the connection between the first air duct 32 and the second air duct 33.

[0050] More preferably, the flow guiding device 14 is provided with mounting edges around it, and the mounting edges are clamped and fixed between the mounting flange edges 34 of the first air duct 32 and the second air duct 33. The flow guiding device 14, the first air duct 32 and the second air duct 33 are fixedly connected together by fasteners.

[0051] During testing, select a suitable flow guiding device 14 according to the test requirements, fix the flow guiding device 14 between the first air duct 32 and the second air duct 33, and then adjust the fixed connection positions between the two first mounting ribs 4 and the two second mounting ribs 5 and the end face frame 31 according to the size of the connection end of the air supply product 1. Fix the connection end to the connection interface 6, and then use the blocking plate 8 to block the other non-connection areas 7. The air sent out by the air supply product 1 flows out evenly from the air outlet surface of the second air duct 33 after passing through the flow guiding device 14, enters the test device 2, and the test device 2 measures parameters such as the air volume.

[0052] When the air supply product 1 is a downward air outlet or an upward air outlet, the device can also be used in reverse, that is, the connecting air duct 3 is installed in the vertical direction.

[0053] Embodiment 2:

[0054] Such as Figure 5As shown in the figure, the difference from the first embodiment is that the connecting air duct 3 is connected between the air supply device 15 and the air supply product 1. The first component is the air supply device 15, and the second component is the air supply product 1 to be tested. The air supply product 1 can be an air duct or an air outlet product. When the air volume needs to be detected, the air supply product 1 is then connected to the testing device 2.

[0055] In this embodiment, the relative installation positions of the first installation rib 4 and the second installation rib 5 are adjusted according to the size of the connection end of the air supply device 15, and the connection end is fixedly connected to the adjusted connection interface 6. The air flow supplied by the air supply device 15 first passes through the flow guiding device 14 and then evenly flows into the air supply products 1 such as air ducts or air outlets, and then the testing device 2 measures parameters such as the air volume.

[0056] The multi-purpose air path connection device provided by the present utility model has the following advantages:

[0057] 1. Through the adjustable first installation rib and second installation rib, the area of the connection interface connected to the connection end of the air supply device or the air supply product can be adjusted, so that the device can be compatible with products of various air outlet sizes, and can also be used for various air outlet types of horizontal air inlet and outlet and vertical air inlet and outlet, meeting the requirements of air volume and air outlet uniformity testing, and having strong versatility.

[0058] 2. The device has a simple structure, is easy to install, and has a low cost.

[0059] 3. By arranging a flow guiding device in the connecting air duct, the air outlet is made uniform, the accuracy of air volume testing is improved, and the problems of inaccurate testing of the outlet air speed and air volume of the product to be tested are solved.

[0060] 4. For the situation where the air outlet uniformity of multiple air supply products needs to be tested, the device can also adjust the air duct resistance by replacing the flow guiding devices with different effective passing areas, and then adjust the air volume of each air duct and air outlet, so as to test the air volume and uniformity under various air volumes of the air duct or air outlet product, further improving the versatility of the device.

[0061] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can be further combined or replaced, but as long as the content does not depart from the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the present utility model.

Claims

1. A multi-purpose air duct connection device, characterized in that: It includes a box-shaped connecting air duct with both ends open. The two end faces of the connecting air duct are respectively connected to the first piece and the second piece. At least on the end face where the connecting air duct is connected to the first piece, multiple first mounting ribs and second mounting ribs are arranged in a criss-cross manner. The first mounting ribs, the second mounting ribs and the end face frame of the connecting air duct are movably connected through a lateral or longitudinal adjustable structure to form a connecting interface connected to the first piece.

2. The multi-purpose air duct connection device according to claim 1, characterized in that: The area between the connecting interface and the end face frame is blocked by installing a blocking plate.

3. The multi-purpose air duct connection device according to claim 2, characterized in that: The blocking plate is made of a light and cuttable material.

4. The multi-purpose air duct connection device according to claim 1, characterized in that: The lateral or longitudinal adjustable structure is a plurality of oblong mounting holes extending laterally or longitudinally provided on the end face frame, the first mounting ribs and the second mounting ribs.

5. The multi-purpose air duct connection device according to claim 4, characterized in that: At least two rows of oblong mounting holes are provided on each side of the end face frame. At least one row of oblong mounting holes is arranged inside the connecting air duct. The first mounting ribs and the second mounting ribs are respectively fixedly connected to the end face frame from the outside and the inside of the end face frame.

6. The multi-purpose air duct connection device according to claim 4, wherein: The first mounting ribs and the second mounting ribs adopt profiles with an H-shaped cross-section, and oblong mounting holes extending along the length direction are provided on both side edges of the profiles.

7. The multi-purpose air duct connection device according to any one of claims 1-6, characterized in that: A flow guiding device is installed inside the connecting air duct.

8. The multi-purpose air duct connection device according to claim 7, characterized in that: The connecting air duct is composed of a split first air duct and a second air duct. The first air duct and the second air duct have mounting flange edges around them and are fixedly connected through fasteners. The flow guiding device is installed at the connection of the first air duct and the second air duct.

9. The multi-purpose air duct connection device according to claim 8, wherein: The flow guiding device has mounting edges around it. The mounting edges are clamped and fixed between the mounting flange edges of the first air duct and the second air duct and are fixedly connected together through fasteners.

10. The multi-purpose air duct connection device according to claim 7, characterized in that: The flow guiding device is a perforated plate or a grating plate.

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