Ventilation structure of central air conditioner

Abstract

The utility model relates to the technical field of ventilation pipelines, discloses a ventilation structure of a central air conditioner, and solves the problems that the flexible connection part of the ventilation pipeline of the existing air conditioner is weak, the stress which can be borne during vibration is limited, and the ventilation pipeline is easy to age and fracture. The ventilation structure comprises a connecting pipe, the outer walls of the two sides of the connecting pipe are in bolt connection with an air conditioner air pipe through arm frames, slidable adjusting plates are arranged on the inner wall of the connecting pipe, a hinge piece and a buffering mechanism are arranged between the adjusting plates, and a connecting column of the buffering mechanism, a balance plate and other components act synergistically to achieve damping; the two ends of the balance plate are connected with the air conditioner air pipe and the adjusting plate in a clamped mode, different installation requirements can be met, vibration is effectively buffered, and meanwhile stability and sealing performance are achieved on the whole.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically a ventilation structure for a central air conditioning system. Background Technology

[0002] The ventilation duct connection structure is an important component of a central air conditioning system. It is responsible for connecting the ventilation ducts of various parts together, ensuring smooth airflow within the system. A good ventilation duct connection structure must not only guarantee the airtightness of the connections to prevent air leakage, but also possess sufficient strength and stability to withstand the effects of pressure, vibration, and temperature changes generated during system operation.

[0003] Chinese patent CN215568678 discloses a ventilation duct connection structure for a central air conditioning system, including ventilation ducts and a duct connection mechanism, with two ventilation ducts connected by the duct connection mechanism. The duct connection mechanism consists of an upper sealing strip, a pressure-reducing layer, a fastening mechanism, and a lower sealing strip. The fastening mechanism includes a rotary fastener, a pull-out fastener, and a reverse fastener. The rotary fastener is rotatably connected to the upper sealing strip via a pivot at the top, and the pull-out fastener is slidably mounted on the side. A reverse fastener is mounted inside the pull-out fastener. A side locking block is located at the inner corner where the reverse fastener connects to the pull-out fastener, and an elastic band is mounted above the side locking block and connected to the rotary fastener. The lower sealing strip is locked in reverse by rotating the rotary fastener and pulling the pull-out fastener. The structure and operation of the fastening mechanism are relatively complex. Repairing or replacing damaged parts can be difficult, requiring a high level of technical skill from the installers.

[0004] In view of the aforementioned technologies, a ventilation structure for a central air conditioning system is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a ventilation structure for a central air conditioning system. By using this device, the problem of the existing air conditioning ventilation pipes having relatively weak flexible connections, limited stress resistance under vibration, and being prone to aging and breakage can be solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ventilation structure for a central air conditioning system, including a connecting pipe, an arm frame fixedly connected to the outer walls of both sides of the connecting pipe by bolts, an air conditioning duct fixedly connected to the arm frame by bolts, two adjusting plates symmetrically sliding on the inner walls of both sides of the connecting pipe, two hinges fixedly provided between the two adjusting plates, the two hinges symmetrically arranged at the ends of the side walls of the adjusting plates, and a buffer mechanism fixedly provided on each hinge.

[0007] The buffer mechanism includes connecting columns. One end of each connecting column is fixedly connected to a hinge, and the other end is slidably connected to a balance plate. The balance plate has a buffer groove and a column groove that matches the connecting columns. The ends of the two connecting columns that extend into the balance plate are provided with limiting blocks. The bottom end of each limiting block abuts against a ball. A slider abuts between the two balls. The slider is slidably set in the buffer groove of the balance plate. Wedge-shaped platforms are symmetrically fixed on the inner walls of both ends of the buffer groove.

[0008] Preferably, the adjusting plate has symmetrical sliding grooves on both ends of its sidewalls.

[0009] Preferably, the portion of the limiting block that contacts the rolling ball is provided with an elastic pad.

[0010] Preferably, the hinge includes a positioning plate, one end of which is fixedly connected to an adjusting plate, and the other end of which is rotatably connected to a movable plate via a shaft. The other end of the movable plate is fixedly connected to another adjusting plate.

[0011] Preferably, the groove is an inverted T-shaped structure with an upper end diameter smaller than the lower end diameter.

[0012] Preferably, the slider is a trapezoidal platform structure.

[0013] Preferably, the two ends of the balance plate extend into the air conditioning ducts on both sides and form a snap-fit ​​structure with the adjustment plate, and the air conditioning ducts are arranged between the balance plate and the adjustment plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model proposes a ventilation structure for a central air conditioning system. The connection between the connecting pipe and the air conditioning duct is secured by bolts to the arm frames on both sides of the outer wall. The adjusting plate on the inner wall of the connecting pipe is slidable to adapt to different installation requirements, and its end grooves serve as guides and limits. The hinge between the adjusting plates allows relative rotation, enhancing structural flexibility. The buffer mechanism on the hinge effectively cushions vibrations during operation, protecting the ventilation structure.

[0016] 2. This utility model proposes a ventilation structure for a central air conditioning system. The column groove design in the buffer mechanism better limits the connection column and prevents it from coming off. The elastic pad between the limiting block and the rolling ball reduces impact force, and the slider and wedge-shaped platform cooperate to improve buffering performance. The two ends of the balance plate are snapped into the air conditioning duct and the adjusting plate, further enhancing the overall stability and sealing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the connecting pipe and the air conditioning duct of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the connecting pipe of this utility model;

[0021] Figure 5 This is a schematic diagram showing the positional structure of the adjusting plate, the balancing plate, and the arm frame of this utility model.

[0022] Figure 6 This is a schematic diagram of the internal structure of the balance plate of this utility model.

[0023] In the diagram: 1. Connecting pipe; 11. Arm frame; 12. Adjusting plate; 120. Slide groove; 2. Air conditioning duct; 3. Hinge; 31. Positioning plate; 32. Movable plate; 5. Buffer mechanism; 51. Connecting column; 511. Limiting block; 512. Elastic pad; 52. Balance plate; 50. Buffer groove; 520. Column groove; 521. Rolling ball; 522. Sliding block; 523. Wedge platform. Detailed Implementation

[0024] 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.

[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0026] Combination Figures 1-6 A ventilation structure for a central air conditioning system includes a connecting pipe 1. Arm frames 11 are bolted to the outer walls of both sides of the connecting pipe 1. Air conditioning ducts 2 are bolted to the arm frames 11, ensuring a tight connection between the connecting pipe 1 and the air conditioning ducts 2, guaranteeing the integrity and sealing of the ventilation system. Two adjusting plates 12 are symmetrically slidable on the inner walls of both sides of the connecting pipe 1, allowing them to slide within the connecting pipe 1 according to actual needs, facilitating position adjustment and adapting to different installation and usage conditions. Sliding grooves 120 are symmetrically provided on the side walls at both ends of the adjusting plates 12, providing guidance and limiting for the sliding of the adjusting plates 12, making the sliding of the adjusting plates 12 within the connecting pipe 1 more stable. Two hinges 3 are fixed between the two adjusting plates 12, symmetrically arranged at the ends of the side walls of the adjusting pipe 12. The hinges 3 allow the two adjusting plates 12 to rotate relative to each other, enhancing structural flexibility. Each hinge 3 is fixedly equipped with a buffer mechanism 5, providing buffer protection for the operation of the ventilation structure.

[0027] The buffer mechanism 5 includes connecting columns 51. One end of each connecting column 51 is fixedly connected to the hinge 3, and the other end is slidably connected to the balance plate 52. The connecting columns 51 serve to connect and transmit force. The balance plate 52 has a buffer groove 50 and a groove 520 adapted to the connecting columns 51. The groove 520 provides limiting and guiding for the sliding of the connecting columns 51. The groove 520 has an inverted T-shaped structure with an upper end diameter smaller than the lower end diameter, which better limits the connecting columns 51 and prevents them from excessive displacement or detachment during sliding. The ends of the two connecting columns 51 that extend into the balance plate 52 are provided with limiting blocks 511 to prevent the connecting columns 51 from detaching from the balance plate 52. The bottom end of each limiting block 511 abuts against a ball 521. The part of the limiting block 511 that contacts the ball 521 is provided with an elastic pad 512, which can reduce the impact force and play a buffering and protective role. A slider 522 abuts between two rolling balls 521. The slider 522 has a trapezoidal platform structure and fits tightly with the wedge-shaped platform 523 of the buffer groove 50. The buffering effect of the wedge-shaped platform 523 is used to improve the buffering performance. The slider 522 is slidably set in the buffer groove 50 of the balance plate 52. Its position can be adjusted according to the force to change the buffering performance. The wedge-shaped platforms 523 are symmetrically fixed on the inner walls of both ends of the buffer groove 50 to limit the sliding range of the slider 522 and provide additional buffering when the rolling balls 521 slide to both ends.

[0028] The hinge 3 includes a positioning plate 31, one end of which is fixedly connected to the adjusting plate 12, and the other end is rotatably connected to a movable plate 32 via a shaft. The other end of the movable plate 32 is fixedly connected to another adjusting plate 12. This structure allows the two adjusting plates 12 to rotate flexibly, adapting to deformation and vibration during the operation of the ventilation structure.

[0029] The two ends of the balance plate 52 extend into the air conditioning ducts 2 on both sides and form a snap-fit ​​structure with the adjustment plate 12. The air conditioning ducts 2 are set between the balance plate 52 and the adjustment plate 12 to further enhance the stability of the connection and ensure the integrity and sealing of the ventilation structure.

[0030] Working Principle: When the central air conditioning ventilation structure is working, the connecting pipe 1 is bolted to the air conditioning duct 2 via the arm frame 11. The adjusting plate 12 inside the connecting pipe 1 is slidable, and its slide groove 120 serves as a guide and limiter. The hinge 3 between the adjusting plates 12 allows them to rotate relative to each other. When the ventilation structure is subjected to external impact or vibration, the force is transmitted to the connecting column 51 through the hinge 3. The connecting column 51 slides within the column groove 520. The inverted T-shaped structure of the column groove 520 effectively limits the displacement of the connecting column 51, preventing it from coming off. The limiting block 511 at the end of the connecting column 51 compresses the ball 521. The elastic pad 512 at the contact point between the limiting block 511 and the ball 521 first buffers part of the impact force, reducing wear between components. When the ball 521 is subjected to force, it pushes the slider 522 to slide within the buffer groove 50. The trapezoidal platform structure of the slider 522 is closely matched with the wedge-shaped platforms 523 at both ends of the buffer groove 50. The position is adjusted according to the magnitude of the force to further absorb and disperse the impact force, achieve self-balance, and thus effectively buffer and protect the ventilation structure.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation structure for a central air conditioning system, comprising a connecting pipe (1), with arm frames (11) bolted to the outer walls of both sides of the connecting pipe (1), and an air conditioning duct (2) bolted to the arm frames (11), and two adjusting plates (12) symmetrically sliding on the inner walls of both sides of the connecting pipe (1), characterized in that: Two hinges (3) are fixed between the two adjustment plates (12). The two hinges (3) are symmetrically arranged at the ends of the side walls of the adjustment plates (12). A buffer mechanism (5) is fixed on each of the hinges (3). The buffer mechanism (5) includes connecting columns (51), one end of each of the two connecting columns (51) is fixedly connected to the hinge (3), and the other end is slidably connected to the balance plate (52). The balance plate (52) is provided with a buffer groove (50) and a column groove (520) adapted to the connecting column (51). The ends of the two connecting columns (51) that extend into the balance plate (52) are provided with limiting blocks (511). The bottom ends of the limiting blocks (511) are abutted against the rolling balls (521). The two rolling balls (521) are abutted against the slider (522). The slider (522) is slidably arranged in the buffer groove (50) of the balance plate (52). The inner walls of the two ends of the buffer groove (50) are symmetrically fixed with wedge-shaped platforms (523).

2. The ventilation structure of a central air conditioning system according to claim 1, characterized in that: The adjusting plate (12) has symmetrical sliding grooves (120) on both side walls.

3. The ventilation structure of a central air conditioning system according to claim 1, characterized in that: An elastic pad (512) is provided at the part where the limiting block (511) contacts the rolling ball (521).

4. The ventilation structure of a central air conditioning system according to claim 1, characterized in that: The hinge (3) includes a positioning plate (31), one end of which is fixedly connected to the adjusting plate (12), and the other end is rotatably connected to a movable plate (32) via a shaft. The other end of the movable plate (32) is fixedly connected to another adjusting plate (12).

5. The ventilation structure of a central air conditioning system according to claim 1, characterized in that: The column groove (520) is an inverted T-shaped structure with an upper end diameter smaller than the lower end diameter.

6. The ventilation structure of a central air conditioning system according to claim 1, characterized in that: The slider (522) has a trapezoidal structure.

7. The ventilation structure of a central air conditioning system according to claim 1, characterized in that: The two ends of the balance plate (52) extend into the air conditioning ducts (2) on both sides and form a snap-fit ​​structure with the adjustment plate (12). The air conditioning ducts (2) are set between the balance plate (52) and the adjustment plate (12).

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