A modular data center retractable duct

Abstract

This utility model relates to a modular extendable air duct for data centers, comprising an outer air duct and an inner air duct. Flanges are provided at the left end of the outer air duct and the right end of the inner air duct. The left end of the inner air duct slides into the right end of the outer air duct. Several limiting slots are axially arranged on the outer wall of the inner air duct, and a limiting pin is provided at the right end of the outer air duct, which can be inserted into the limiting slots. This utility model, by fitting the outer and inner air ducts together and locking them together with the limiting pin, allows for extension or shortening after pulling the limiting pin to unlock. This provides sufficient installation space for high-altitude installation operations, and the flanges on both sides enable quick docking with modules on both sides, reducing the difficulty of high-altitude operations and improving work efficiency and construction safety.

Description

Technical Field

[0001] This utility model belongs to the field of HVAC installation technology for data centers, and specifically relates to a modular retractable air duct for data centers. Background Technology

[0002] Modular data centers consist of multiple modules. The data center is assembled in a prefabrication plant, and the accompanying HVAC ductwork is also distributed among the modules after installation. After the internal electromechanical construction is completed in the prefabrication plant, the data center is disassembled into individual modules and transported to the construction site for assembly. Therefore, the ductwork between modules needs to be connected using short pipes. When disassembling the modules, these short ducts need to be removed at height, and then reinstalled at the construction site using similar height work. There is insufficient space for tightening screws during duct connection, making the operation difficult, resulting in low on-site work efficiency and high labor costs. Utility Model Content

[0003] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a modular retractable air duct for data centers, so as to solve the problems of difficult operation and low work efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A modular data center retractable duct includes an outer duct and an inner duct. Flanges are provided at the left end of the outer duct and the right end of the inner duct. The left end of the inner duct slides into the right end of the outer duct. Several limiting slots are provided axially on the outer side wall of the inner duct. A limiting pin is provided at the right end of the outer duct, and the limiting pin can be inserted into the limiting slot.

[0005] To better realize this utility model, the above structure is further optimized by providing a roller on the outer wall of the left end of the inner air duct, and the inner air duct makes rolling contact with the inner wall of the outer air duct through the roller.

[0006] To better realize this utility model, the above structure is further optimized by leaving a gap between the outer wall of the inner air duct and the inner wall of the outer air duct, and a first sealing strip is movably installed in the gap.

[0007] To better realize this utility model, the above structure is further optimized. Both the inner and outer air ducts are cuboids. Four first sealing strips are provided and are respectively hinged to the right ends of the four sides of the outer air duct. Rotating the first sealing strips can insert them into the gap.

[0008] To better realize this utility model, the above structure is further optimized, and the first sealing strip is a trapezoidal structure.

[0009] To better realize this utility model, the above structure is further optimized by providing a pull ring on the outer side of the first sealing strip.

[0010] To better realize this utility model, the above structure is further optimized. A hinge point is provided on the inner wall of the external air duct, and a flip bracket is hinged to the hinge point. A second sealing strip is provided on the flip bracket. The second sealing strip is in a vertical state and blocks the gap. The side of the plug of the limiting pin is movably connected to the flip bracket. Pulling the limiting pin upward can drive the flip bracket to rotate around the hinge point, so that the second sealing strip rotates synchronously and opens the gap.

[0011] To better realize this utility model, the above structure is further optimized by making the limiting pin a spring pin.

[0012] Compared with the prior art, this utility model has the following advantages: This utility model provides a modular telescopic air duct for data centers. By fitting an outer air duct and an inner air duct together, the two air ducts are locked together by a limiting pin. Pulling the limiting pin unlocks the duct, allowing it to be extended or shortened, thus reserving sufficient installation space for high-altitude installation operations. It can also be quickly connected to modules on both sides via flanges on both sides, reducing the difficulty of high-altitude operations and improving work efficiency and construction safety. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a side sectional view of the present invention; Figure 2 This is a partially enlarged structural diagram of the flip-up bracket in the utility model.

[0015] In the picture: 1-External air duct, 2-Inner air duct, 201-Limit slot, 3-Flange, 4-Limit pin, 401-Insertion rod, 5-Roller, 6-Gap, 7-First sealing strip, 8-Pull ring, 9-Hinge point, 10-Flip bracket, 11-Second sealing strip. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Please refer to Figure 1 and Figure 2 This utility model provides a modular telescopic air duct for data centers, including an outer air duct 1 and an inner air duct 2. Flanges 3 are provided at the left end of the outer air duct 1 and the right end of the inner air duct 2, allowing for quick connection with different modules during installation. The left end of the inner air duct 2 slides into the outer air duct 1 from its right end. In this embodiment, a roller 5 is provided on the outer wall of the left end of the inner air duct 2. The inner air duct 2 rolls against the inner wall of the outer air duct 1 via the roller 5. The roller 5 is a universal roller. A track groove is provided on the inner wall of the outer air duct 1, and the roller 5 rolls axially within the track groove. The length of the telescopic air duct can be adjusted by axially stretching the inner air duct 2.

[0020] Two limiting slots 201 are axially arranged on the outer wall of the inner duct 2, respectively located on the left and right sides of the inner duct 2. A limiting pin 4 is provided at the right end of the outer duct 1. The limiting pin 4 is a spring pin, which needs to overcome the spring tension when pulled upwards and automatically resets after being released to prevent the locking structure from loosening. The limiting pin 4 can be inserted into the limiting slot 201. When the telescopic duct shortens, the inner duct 2 moves into the outer duct 1, and the limiting pin 4 is inserted into the right pin to lock it; when the telescopic duct extends, the inner duct 2 moves outwards from the outer duct 1, and the limiting pin 4 is inserted into the left pin to lock it.

[0021] A gap 6 is provided between the outer wall of the inner duct 2 and the inner wall of the outer duct 1 to ensure smooth sliding between them. A first sealing strip 7 is movably installed within the gap 6 to seal it and prevent leakage. The first sealing strip 7 has a trapezoidal structure, and its tapered slope allows for better tightness with the two side walls of the gap 6, resulting in a better sealing effect. Furthermore, a pull ring 8 is provided on the outer side of the first sealing strip 7 for easy pulling. In this embodiment, both the inner duct 2 and the outer duct 1 are cuboids. Four first sealing strips 7 are provided, each hinged to the right end of one of the four sides of the outer duct 1. Rotating the first sealing strip 7 allows it to be inserted into the gap 6. When the duct extends or retracts, rotating the first sealing strip 7 opens the gap 6, allowing the inner duct 2 to move freely. After the duct is installed and positioned, rotating the first sealing strip 7 inserts it into the gap 6 to seal it and prevent airflow leakage.

[0022] like Figure 2 As shown, in order to perform secondary sealing on the gap 6 and improve the airtightness of the telescopic duct, a hinge point 9 is provided on the inner wall of the outer duct 1. A flip bracket 10 is hinged to the hinge point 9. A second sealing strip 11 is provided on the flip bracket 10. The second sealing strip 11 is in a vertical state and blocks the gap 6. The side of the insertion rod 401 of the limiting pin 4 is movably connected to the flip bracket 10. Pulling the limiting pin 4 upward can drive the flip bracket 10 to rotate around the hinge point 9, so that the second sealing strip 11 rotates synchronously and opens the gap 6. In this embodiment, a connecting rod is provided on the side of the insertion rod 401, and a ring is provided at the end of the connecting rod. One end of the flip bracket 10 is movably inserted into the ring. As the ring moves up and down with the insertion rod 401, it drives the flip bracket 10 to rotate around the hinge point 9. By using the up and down movement of the insertion rod 401 to drive the second sealing strip 11 to open or close the gap 6, the process of manually flipping the second sealing strip 11 is eliminated. At the same time, it cooperates with the first sealing strip 7 to form two lines of defense, which can effectively prevent the problem of air leakage.

[0023] Working principle: When pre-assembling a modular data center, telescopic ducts are needed to connect the air ducts on the two modules. First, the flange 3 at the left end of the outer duct 1 is connected and fixed to the air duct on the left module using bolts. Then, the duct is extended. During extension, the limit pin 4 is pulled to move the bottom insert 401 out of the right limit slot 201, releasing the locking state. The limit pin 4 is then rotated to temporarily lock it in place. The inner duct 2 is then pulled outward to the specified length. The limit pin 4 is then rotated back to release the temporary lock, allowing it to automatically reset under the action of the spring and insert into the left limit slot 201, locking the inner duct 2 and the outer duct 1 together. At the same time, the second sealing strip 11 is rotated to a vertical position by the insert 401 to seal the gap 6. The pull ring 8 is manually pulled to rotate the first sealing strip 7 to insert it into the gap 6 for sealing. Finally, the flange 3 at the right end of the inner duct 2 is connected and fixed to the air duct on the right module using bolts.

[0024] After the modules are pre-assembled and all components are checked for defects, the modules are disassembled. During disassembly, first remove the bolts from the right flange 3, pull the pull ring 8 to open the gap 6 of the first sealing strip 7, and pull the limit pin 4 to release the locking state. The second sealing strip 11 flips upward and opens the gap 6 under the action of the insertion rod 401. Then, push the inner air duct 2 into the outer air duct 1, and finally insert the limit pin 4 into the right-end limit slot 201 to lock the inner air duct 2 and outer air duct 1. After disassembly, transport each module to the construction site for installation according to the pre-assembled specifications.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A modular, retractable air duct for a data center, characterized in that: It includes an external air duct and an internal air duct. The left end of the external air duct and the right end of the internal air duct are both provided with flanges. The left end of the internal air duct slides into the interior of the right end of the external air duct. Several limiting slots are provided axially on the outer side wall of the internal air duct. The right end of the external air duct is provided with a limiting pin, which can be inserted into the limiting slot.

2. The modular telescopic duct for a data center according to claim 1, characterized in that: A roller is provided on the outer wall of the left end of the inner air duct, and the inner air duct makes rolling contact with the inner wall of the outer air duct through the roller.

3. The modular data center extendable duct according to claim 2, characterized in that: A gap is left between the outer side wall of the inner air duct and the inner side wall of the outer air duct, and a first sealing strip is movably installed in the gap.

4. The modular data center extendable duct according to claim 3, characterized in that: Both the inner and outer air ducts are cuboids. Four first sealing strips are provided and are respectively hinged to the right ends of the four sides of the outer air duct. Rotating the first sealing strips allows them to be inserted into the gaps.

5. A modular, expandable air duct for a data center according to claim 4, characterized in that: The first sealing strip has a trapezoidal structure.

6. A modular data center extendable duct according to claim 5, characterized in that: A pull ring is provided on the outer side of the first sealing strip.

7. A modular data center extendable duct according to claim 4, characterized in that: A hinge point is provided on the inner wall of the external air duct, and a flip bracket is hinged to the hinge point. A second sealing strip is provided on the flip bracket. The second sealing strip is in a vertical state and blocks the gap. The side of the plug of the limiting pin is movably connected to the flip bracket. Pulling the limiting pin upward can drive the flip bracket to rotate around the hinge point, so that the second sealing strip rotates synchronously and opens the gap.

8. A modular retractable duct for a data center according to any one of claims 1-7, characterized in that: The limiting pin is a spring pin.

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