Modularized splicing type central air conditioner air pipe

Abstract

The utility model relates to the technical field of central air conditioner air pipes, in particular to a modularized splicing type central air conditioner air pipe which comprises a plurality of ventilation pipes, fixing frames are fixedly connected to the two ends of each ventilation pipe, and a fixing mechanism used for fixing every two adjacent ventilation pipes is arranged between every two adjacent ventilation pipes. The fixing mechanism comprises four clamping frames and two limiting pieces which are symmetrically arranged and used for shaping the four clamping frames, every two adjacent clamping frames are connected through a hinge, and grooves are formed in the two opposite side faces of the interiors of the clamping frames. According to the utility model, the plurality of round rollers are arranged on the two opposite side surfaces in the clamping frame, so that when the fixed frame is inserted into the clamping frame or the clamping frame is inserted on the outer side of the fixed frame, the friction between the fixed frame and the clamping frame can be reduced through the rotation of the round rollers, and a gap is not easy to generate between the fixed frame and the clamping frame; and the two fixing frames can be tightly attached together, so that the air leakage condition can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of central air conditioning duct technology, specifically a modular splicing central air conditioning duct. Background Technology

[0002] Central air conditioning ducts are an important component of central air conditioning systems used for transporting and distributing air. They not only affect the performance and efficiency of the air conditioning system, but also play a key role in indoor air quality, comfort, and the overall stability of the system. Modular central air conditioning ducts divide the central air conditioning duct system into multiple independent modular units, each with its own structure and function. These units can be flexibly combined and spliced ​​according to actual needs to meet the air conditioning requirements of different spaces and usage scenarios.

[0003] Chinese Patent Publication No. CN219797464U discloses a modular central air conditioning duct assembly. Through the cooperation of structures such as the main mounting frame, baffle, tension spring, slider, extension rod, L-shaped clip, secondary mounting frame, and T-shaped frame, it facilitates the installation of individual ducts, ensures a secure fixation after installation, and makes installation or disassembly convenient.

[0004] Although the aforementioned patent achieves the splicing of two air ducts by inserting a T-shaped frame into the main mounting frame, when the main mounting frame is inserted into the T-shaped frame and the secondary mounting frame (or the T-shaped frame and the secondary mounting frame are inserted into the main mounting frame), the sides of the T-shaped frame and the secondary mounting frame will rub against each other during the installation process, causing wear on the sides of the T-shaped frame and the secondary mounting frame. This results in gaps between the sides of the T-shaped frame and the secondary mounting frame and the main mounting frame, causing air leakage after the air duct is installed, thus affecting the cooling or heating effect of the central air conditioning. Utility Model Content

[0005] The purpose of this invention is to provide a modular, splicable central air conditioning duct to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A modular splicing central air conditioning duct includes multiple ventilation ducts, both ends of which are fixedly connected to a fixing frame, and a fixing mechanism is provided between two adjacent ventilation ducts for fixing the two ventilation ducts.

[0008] The fixing mechanism includes four card frames and two symmetrically arranged limiting members for fixing the four card frames. Adjacent card frames are connected by hinges. The card frames have grooves on opposite sides inside. Multiple rollers are rotatably connected at equal intervals between the two ends of the grooves.

[0009] Furthermore, the cross-section of the card frame is trapezoidal, and a rubber pad is fixedly connected to the outer wall of the roller.

[0010] Furthermore, the four card frames, when closed, form a U-shaped frame.

[0011] Furthermore, a magnet is embedded and fixed to the oblique side of the card frame.

[0012] Furthermore, the card frame has through holes at both ends of its side, and the limiting member includes two symmetrical Z-shaped plates. The inner top surface of the Z-shaped plates is fixedly connected to a plug block that is inserted into the corresponding hole. A screw rod passes through between the two Z-shaped plates at opposite positions.

[0013] Furthermore, the inner side of the Z-shaped plate is slidably connected to a stop block, and the side of the stop block is fixedly connected to a second plug block that is inserted into a corresponding socket.

[0014] Furthermore, the Z-shaped plate has a through screw bolt on its side, and both ends of the side of the abutment are fixedly connected with a limiting plate that slides through the Z-shaped plate at the corresponding position.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting multiple round rollers on both opposite sides inside the card frame, the rotation of the round rollers can reduce the friction between the fixed frame and the card frame when the fixed frame is inserted into the card frame or the card frame is inserted on the outside of the fixed frame. This makes it less likely for gaps to form between the fixed frame and the card frame, and allows the two fixed frames to fit tightly together, thereby preventing air leakage.

[0017] 2. By fixing a rubber pad to the outer wall of the roller, not only can the tightness between the fixed frame and the card frame be increased, but the wear on the fixed frame can also be reduced again. By embedding magnets in the inclined surface of the card frame, the two adjacent magnets attract each other after the four card frames are closed, which can initially shape the four card frames. Therefore, it is more convenient to use the limiting parts to finally shape the four card frames later.

[0018] 3. By inserting the first and second insert blocks into the corresponding holes, and then using the screw and nut, the four Z-shaped plates can more firmly fix the four clip frames after they are closed, preventing the two adjacent ventilation pipes from shaking between the four clip frames. Attached Figure Description

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

[0020] Figure 2This is a schematic diagram of the fixing mechanism in this utility model;

[0021] Figure 3 This is a schematic diagram of the card frame in this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting component structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the abutment block in this utility model.

[0024] In the diagram: 1. Ventilation duct; 2. Fixing mechanism; 21. Frame; 211. Roller; 212. Insertion hole; 22. Limiting component; 221. Z-shaped plate; 222. Insertion block one; 223. Abutment block; 224. Insertion block two; 225. Screw; 226. Bolt; 227. Limiting plate. 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 - Figure 5 In this embodiment of the utility model, a modular splicing central air conditioning duct includes multiple ventilation ducts 1. Both ends of each ventilation duct 1 are fixedly connected to a fixing frame, which is a rectangular structure. A fixing mechanism 2 for fixing two adjacent ventilation ducts 1 is provided between them. The fixing mechanism 2 includes four card frames 21 and two symmetrically arranged limiting members 22 for shaping the four card frames 21. Adjacent card frames 21 are connected by hinges. The two opposite sides of the inside of the card frames 21 are provided with grooves. Multiple round rollers 211 are rotatably connected at equal intervals between the two ends of the grooves.

[0027] Specifically, first, the four card frames 21 are laid out in a straight line. Then, one of the fixed frames of one of the ventilation pipes 1 is inserted into one of the laid-out card frames 21. Subsequently, one of the fixed frames of another ventilation pipe 1 is also inserted into this card frame 21. Then, the other three card frames 21 are rotated along the hinge, so that the other three card frames 21 are also locked on the outside of the two adjacent fixed frames. Then, the four card frames 21 are fixed and their shape is maintained by the two limiting members 22. At this time, the two adjacent ventilation pipes 1 can be spliced ​​together. Then, according to the indoor environment, the required number of ventilation pipes 1 are spliced ​​and installed in the designated position. This device has multiple round rollers 211 on the two opposite sides inside the card frame 21. Therefore, when the fixed frame is inserted into the card frame 21 or the card frame 21 is inserted on the outside of the fixed frame, the rotation of the round rollers 211 can reduce the friction between the fixed frame and the card frame 21, so that the fixed frame and the card frame 21 are less likely to have gaps. This allows the two fixed frames to fit tightly together, thereby avoiding air leakage. Example 1

[0028] like Figure 2 and Figure 3 As shown, in this embodiment, the cross-section of the card frame 21 is a trapezoidal structure, the outer wall of the roller 211 is fixedly connected with a rubber pad, and the four card frames 21 together form a U-shaped frame. Magnets are embedded and fixed on the oblique side of the card frame 21.

[0029] In this embodiment, by fixing a rubber pad to the outer wall of the roller 211, not only can the tightness between the fixing frame and the card frame 21 be increased, but the wear on the fixing frame can also be reduced again. By closing the four card frames 21 into a U-shaped frame, the fixing frame can be better wrapped. By embedding magnets on the inclined surface of the card frame 21, the two adjacent magnets of the four card frames 21 attract each other after they are closed, which can initially shape the four card frames 21. Therefore, it is more convenient to use the limiting member 22 to finally shape the four card frames 21 later. Example 2

[0030] like Figure 4 and Figure 5 As shown, in this embodiment, the card frame 21 has insertion holes 212 through both ends of its side. The limiting member 22 includes two symmetrical Z-shaped plates 221. The inner top surface of the Z-shaped plate 221 is fixedly connected to a first insertion block 222 that is inserted into the insertion hole 212 at the corresponding position. A screw 225 passes through between the two Z-shaped plates 221 at opposite positions. A stop block 223 is slidably connected to the inner side of the Z-shaped plate 221. A second insertion block 224 that is inserted into the insertion hole 212 at the corresponding position is fixedly connected to the side of the stop block 223. A screw bolt 226 passes through the side of the Z-shaped plate 221. The two ends of the side of the stop block 223 are fixedly connected to limiting plates 227 that slide through the Z-shaped plate 221 at the corresponding position.

[0031] In this embodiment, one of the Z-shaped plates 221 is first placed at the corner of the closed loop-shaped frame. Then, the first insert 222 is inserted into the corresponding insertion hole 212, and the second insert 224 is inserted into the adjacent insertion hole 212. Then, by rotating the bolt 226 and making one end of the bolt 226 abut against the stop block 223, the second insert 224 can be limited. At this time, the Z-shaped plate 221 is stuck between the two clip frames 21 at the corresponding position. Then, the other three Z-shaped plates 221 are stuck between the two clip frames 21 at the corresponding positions in the same way. Then, the screw 225 is inserted between the two Z-shaped plates 221 at the opposite position, and the two Z-shaped plates 221 are tightly fixed between the two clip frames 21 at the corresponding position by the screwing connection of the nut and the screw 225, so that the four clip frames 21 after closing are more stable.

[0032] 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.

[0033] 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 modular, spliced ​​central air conditioning duct, comprising multiple ventilation ducts (1), each ventilation duct (1) having a fixed frame fixedly connected to both ends, characterized in that, A fixing mechanism (2) for fixing the two ventilation pipes (1) is provided between two adjacent ventilation pipes (1); The fixing mechanism (2) includes four card frames (21) and two symmetrically arranged limiting members (22) for fixing the four card frames (21). The two adjacent card frames (21) are connected by hinges. The card frames (21) have grooves on opposite sides inside. Multiple round rollers (211) are rotatably connected at equal intervals between the two ends inside the grooves.

2. The modular splicing central air conditioning duct according to claim 1, characterized in that, The cross-section of the card frame (21) is trapezoidal, and the outer wall of the roller (211) is fixedly connected with a rubber pad.

3. The modular splicing central air conditioning duct according to claim 2, characterized in that, The four card frames (21) together form a frame with a loop-shaped structure.

4. The modular splicing central air conditioning duct according to claim 3, characterized in that, Magnets are embedded and fixed on the bevel of the card frame (21).

5. The modular splicing central air conditioning duct according to claim 1, characterized in that, The card frame (21) has insertion holes (212) through both sides. The limiting member (22) includes two symmetrical Z-shaped plates (221). The inner top surface of the Z-shaped plate (221) is fixedly connected to a plug block (222) that is inserted into the corresponding insertion hole (212). A screw (225) passes through between the two Z-shaped plates (221) at opposite positions.

6. The modular splicing central air conditioning duct according to claim 5, characterized in that, The inner side of the Z-shaped plate (221) is slidably connected to a stop block (223), and the side of the stop block (223) is fixedly connected to a second plug block (224) that is inserted into the corresponding hole (212).

7. The modular splicing central air conditioning duct according to claim 6, characterized in that, The Z-shaped plate (221) has a through screw bolt (226) on its side, and the two ends of the side of the abutment (223) are fixedly connected with a limiting plate (227) that slides through the Z-shaped plate (221) at the corresponding position.

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