Central air conditioner air pipe capable of reducing air resistance

Abstract

The utility model relates to the technical field of central air conditioner air pipes, in particular to a central air conditioner air pipe capable of reducing wind resistance, which comprises an elbow, a plurality of arc-shaped guide sheets are fixedly mounted on the inner side surface of the elbow, two straight pipe components are respectively arranged at two ends of the elbow, and each straight pipe component comprises a straight pipe. A second connecting frame is fixedly installed at one end of the straight pipe, studs are fixedly installed on the surface of one side of the second connecting frame at equal angles, first nuts are connected to the surfaces of the outer sides of the studs in a screwed mode, a plurality of sealing strips are arranged between the elbow and the straight pipe, and a plurality of limiting rings are fixedly installed at the two ends of the surface of the outer side of the elbow at equal angles. According to the utility model, the plurality of arc-shaped guide sheets are arranged in the elbow, so that air passes through a plurality of spaces, the impact of straight air on the air on the side wall is reduced, the air resistance is reduced, and the sealing strip is convenient to replace by screwing the first nut to abut against the limiting ring, adjusting the distance between the elbow and the straight pipe and fixing the elbow and the straight pipe.

Description

Technical Field

[0001] This utility model relates to the field of central air conditioning duct technology, specifically a central air conditioning duct that can reduce air resistance. Background Technology

[0002] A central air conditioning system consists of one or more cold and heat source systems and multiple air conditioning systems. Unlike traditional refrigerant-based air conditioners, this system centrally processes air to achieve comfort requirements. It uses the principle of liquid vaporization refrigeration to provide the required cooling capacity to offset the heat load of the indoor environment. The heating system provides the required heat to offset the heating and cooling load of the indoor environment. During the installation process, the air ducts used in central air conditioning systems need to be connected to other connecting pipes to adapt to the changes in the usage location in order to accommodate air delivery in different locations.

[0003] The existing central air conditioning duct elbows have a large cross-section. When air flows inside the elbow, the straight air in the middle blows towards the curved air at the edge, causing air turbulence and increasing wind resistance. Furthermore, when the elbow and straight pipe are connected, cold and hot air flow inside the duct, and the compression between the elbow and straight pipe can easily cause the sealing strip to break. Replacing the sealing strip requires disassembling the elbow and straight pipe, which is not convenient for quick replacement. Utility Model Content

[0004] The purpose of this invention is to provide a central air conditioning duct that can reduce wind resistance, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A central air conditioning duct that can reduce wind resistance includes:

[0007] An elbow, wherein multiple arc-shaped guide plates are fixedly installed on the inner surface of the elbow;

[0008] Two straight pipe assemblies are respectively set at both ends of the elbow. The straight pipe assembly includes a straight pipe. A second connecting frame is fixedly installed at one end of the straight pipe. A stud is fixedly installed at an equal angle on one side surface of the second connecting frame. A nut is screwed onto the outer surface of the stud.

[0009] Multiple sealing strips are installed between the elbow and the straight pipe.

[0010] Furthermore, multiple limiting rings are fixedly installed at equal angles at both ends of the outer surface of the elbow, and the stud moves through the limiting rings.

[0011] Furthermore, guide strips are fixedly installed at both ends of the arc-shaped guide plate, and a No. 1 connecting frame is fixedly installed at both ends of the elbow. Multiple No. 1 through holes are fixedly installed at equal intervals on one side surface of the No. 1 connecting frame.

[0012] Preferably, multiple No. 2 through holes are fixedly installed at equal angles on one side surface of the No. 1 connecting frame, and the stud and the No. 1 nut both movably pass through the No. 2 through holes.

[0013] Preferably, a No. 3 through hole is provided at each of the four corners of one side surface of the No. 2 connecting frame. A bolt is movably inserted inside the No. 3 through hole. The bolt movably passes through the No. 1 through hole. A No. 2 nut is screwed onto one end of the outer surface of the bolt.

[0014] Preferably, multiple guide rods are fixedly installed at equal intervals on one side surface of the second connecting frame, and the guide rods movably pass through the first through hole.

[0015] Preferably, the sealing strip has multiple slots equidistantly spaced on one side surface, and the guide rod, bolt, and stud all move through the slots.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. When replacing the sealing strip, first loosen the No. 2 nut, then tighten the No. 1 nut to make it press against the limiting ring, so that the No. 1 connecting frame and the No. 2 connecting frame are separated, exposing a certain space. At the same time, fix the elbow and the straight pipe to prevent them from closing under the fixing of the duct mounting bracket. Then, by tightening the No. 1 nut against the limiting ring, adjust the distance between the elbow and the straight pipe and fix them, making it easy to replace the sealing strip.

[0018] 2. The guide rod passes through the first through hole and positions the elbow and straight pipe during connection, facilitating their assembly. Simultaneously, the guide rod and slot engage to position and install the sealing strip, allowing it to be installed in a specific location. Multiple sealing strips can then be combined to form a square sealing ring, sealing the elbow and straight pipe. The second nut and bolt are then screwed together to fix the first and second connecting frames, thus sealing the elbow and straight pipe by clamping the sealing strip. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the elbow and straight pipe connection in this utility model;

[0022] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the connection between the elbow and the straight pipe in this utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the straight pipe and the sealing strip in this utility model.

[0024] In the diagram: 1. Elbow; 101. Arc-shaped guide plate; 102. Guide strip; 103. Connecting frame 1; 104. Through hole 1; 105. Through hole 2; 106. Limiting ring; 2. Straight pipe assembly; 201. Straight pipe; 202. Connecting frame 2; 203. Guide rod; 204. Stud; 205. Nut 1; 206. Bolt; 207. Nut 2; 208. Through hole 3; 3. Sealing strip; 301. Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 In this embodiment of the present invention, a central air conditioning duct that can reduce wind resistance includes an elbow 1. Multiple arc-shaped guide plates 101 are fixedly installed on the inner surface of the elbow 1, and the arc-shaped guide plates 101 divide the interior of the elbow 1 into multiple spaces. Two straight pipe assemblies 2 are respectively disposed at both ends of the elbow 1. The straight pipe assembly 2 includes a straight pipe 201. A second connecting frame 202 is fixedly installed at one end of the straight pipe 201. A stud 204 is fixedly installed at an equal angle on one side surface of the second connecting frame 202. A nut 205 is screwed onto the outer surface of the stud 204. Multiple sealing strips 3 are disposed between the elbow 1 and the straight pipe 201.

[0027] Specifically, the interior of the elbow 1 is divided into multiple spaces by multiple arc-shaped guide plates 101, allowing air to pass through multiple spaces, reducing the impact of straight air on the side wall air, and reducing air resistance. The distance between the elbow 1 and the straight pipe 201 is adjusted by screwing together the stud 204 and the first nut 205. Example 1

[0028] like Figure 2-5As shown, in this embodiment, guide strips 102 are fixedly installed at both ends of the arc-shaped guide plate 101. One side of the guide strip 102 is an arc-shaped surface to reduce the air resistance of the arc-shaped guide plate 101. A first connecting frame 103 is fixedly installed at both ends of the elbow 1. Multiple first through holes 104 are fixedly installed at equal intervals on one side surface of the first connecting frame 103. Multiple second through holes 105 are fixedly installed at equal angles on one side surface of the first connecting frame 103. The stud 204 and the first nut 205 both movably pass through the second through hole 105. The first nut 205 can pass through the second through hole 105, so that when the straight pipe 201 and the elbow 1 are connected, the stud 204 can be inserted into the limiting ring 106.

[0029] In this embodiment, when replacing the sealing strip 3, first loosen the second nut 207, then tighten the first nut 205 to make it press against the limiting ring 106, so that the first connecting frame 103 and the second connecting frame 202 are far apart, leaving a certain space. At the same time, fix the elbow 1 and the straight pipe 201 to prevent them from closing under the fixation of the duct mounting bracket. Thus, by tightening the first nut 205 to press against the limiting ring 106, the distance between the elbow 1 and the straight pipe 201 is adjusted and fixed, making it easy to replace the sealing strip 3.

[0030] like Figure 3 and Figure 4 As shown, in this embodiment, multiple limiting rings 106 are fixedly installed at equal angles at both ends of the outer surface of the elbow 1, and studs 204 move through the limiting rings 106; multiple slots 301 are equidistantly opened on one side surface of the sealing strip 3, and guide rods 203, bolts 206 and studs 204 move through the slots 301.

[0031] In practice, the slot 301 is used for positioning, so that the sealing strip 3 can be installed in a specific position, and multiple sealing strips 3 can be easily formed into a square sealing ring to seal between the elbow 1 and the straight pipe 201.

[0032] like Figure 3-5 As shown, in this embodiment, three through holes 208 are provided at the four corners of one side surface of the second connecting frame 202. Bolts 206 are movably inserted inside the three through holes 208. The bolts 206 movably pass through the first through hole 104. A second nut 207 is screwed onto one end of the outer surface of the bolt 206.

[0033] In practice, the No. 1 connecting frame 103 and the No. 2 connecting frame 202 are fixed by screwing together the No. 2 nut 207 and the bolt 206, thereby sealing the elbow 1 and the straight pipe 201 by clamping the sealing strip 3. Example 2

[0034] Based on Example 1, in order to compensate for the problem that the straight pipe 201 and the sealing strip 3 are not easy to position during installation.

[0035] like Figure 3 As shown, in this embodiment, multiple guide rods 203 are fixedly installed at equal intervals on one side surface of the second connecting frame 202, and the guide rods 203 movably pass through the first through hole 104.

[0036] In practice, the guide rod 203 passes through the first through hole 104 and plays a positioning role when the elbow 1 and the straight pipe 201 are connected, so that the elbow 1 and the straight pipe 201 can be easily connected and assembled. At the same time, the engagement of the guide rod 203 and the slot 301 makes it easy to position and install the sealing strip 3.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A central air conditioning duct capable of reducing wind resistance, characterized in that, include: Elbow (1), with multiple arc-shaped guide plates (101) fixedly installed on the inner surface of the elbow (1); Two straight pipe assemblies (2) are respectively set at both ends of the elbow (1). The straight pipe assembly (2) includes a straight pipe (201). A second connecting frame (202) is fixedly installed at one end of the straight pipe (201). A stud (204) is fixedly installed at an equal angle on one side surface of the second connecting frame (202). A nut (205) is screwed onto the outer surface of the stud (204). Multiple sealing strips (3) are provided between the elbow (1) and the straight pipe (201).

2. The central air conditioning duct capable of reducing wind resistance according to claim 1, characterized in that, Multiple limiting rings (106) are fixedly installed at equal angles at both ends of the outer surface of the elbow (1), and the stud (204) moves through the limiting rings (106).

3. The central air conditioning duct capable of reducing wind resistance according to claim 1, characterized in that, Guide strips (102) are fixedly installed at both ends of the arc-shaped guide plate (101), and No. 1 connecting frame (103) is fixedly installed at both ends of the elbow (1). Multiple No. 1 through holes (104) are fixedly installed at equal intervals on one side surface of the No. 1 connecting frame (103).

4. The central air conditioning duct capable of reducing wind resistance according to claim 3, characterized in that, Multiple No. 2 through holes (105) are fixedly installed at equal angles on one side surface of the No. 1 connecting frame (103), and the stud (204) and the No. 1 nut (205) both movably pass through the No. 2 through holes (105).

5. The central air conditioning duct capable of reducing wind resistance according to claim 4, characterized in that, The second connecting frame (202) has three through holes (208) at the four corners of one side surface. A bolt (206) is inserted into the third through hole (208). The bolt (206) passes through the first through hole (104). A second nut (207) is screwed onto one end of the outer surface of the bolt (206).

6. The central air conditioning duct capable of reducing wind resistance according to claim 5, characterized in that, Multiple guide rods (203) are fixedly installed at equal intervals on one side surface of the second connecting frame (202), and the guide rods (203) movably pass through the first through hole (104).

7. The central air conditioning duct capable of reducing wind resistance according to claim 6, characterized in that, The sealing strip (3) has multiple slots (301) evenly spaced on one side surface, and the guide rod (203), bolt (206) and stud (204) all move through the slots (301).

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