Special filtering device for heating ventilation air conditioner

Abstract

The utility model discloses a special filtering device for a heating ventilation air conditioner, which relates to the field of heating ventilation air conditioners and comprises a first air duct, a second air duct and a filter plate, one end of the second air duct is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with a fixing frame towards the direction of the first air duct. The bottom end of the fixing frame is provided with a first inserting opening allowing the filter plate to penetrate through, one end of the first air channel is provided with a second inserting opening with the projection corresponding to the first inserting opening in the vertical direction, the bottom end of the first air channel is connected with a sealing plate, and the top end of the sealing plate is connected with the filter plate in a clamped mode. According to the utility model, the insertion structure in the vertical direction is arranged, and the fixing frame matched with the filter plate is arranged in one section of the air duct, so that the filter plate can be taken out in a sliding manner only by dismounting a few bolts when being replaced, and can be easily inserted back in the vertical direction in a sliding manner after being cleaned, and the replacement speed of the filter plate is increased; the filtering structure of the heating ventilation air conditioner can be assembled and disassembled more easily.

Description

Technical Field

[0001] The utility model relates to the field of heating, ventilation and air conditioning, in particular to a special filtering device for heating, ventilation and air conditioning. Background Art

[0002] HVAC refers to the systems or related equipment responsible for heating, ventilation and air conditioning in a room or car. The design of HVAC system applies thermodynamics, fluid mechanics and fluid machinery. It is an important branch of mechanical engineering. Its purpose is to create an indoor artificial environment that is beneficial to human survival.

[0003] The air supply pipeline of HVAC is mostly a square duct structure, and the filter structure arranged in the duct structure is generally fixedly connected to the connection between the two sections of the square duct structure, and the filter plate is fixed with bolts. When the filter plate needs to be replaced or repaired, it is generally necessary to dismantle the duct with the filter plate structure, repair or clean the filter plate, and then install the square duct structure back to its original position.

[0004] With respect to the above-mentioned related technologies, after removing the bolts at the connection between the two sections of the existing air duct structure, the section of the air duct structure to be removed cannot be removed smoothly, and the connection at the other end of the air duct structure needs to be released before the air duct structure can be removed in order to replace or repair the filter plate. Therefore, the filter plate of the existing HVAC filter device is inconvenient to load and unload when in use. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a special filter device for HVAC to solve the technical problem that the filter plates of the existing filter devices for HVAC are inconvenient to load and unload during use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special filtering device for HVAC, comprising a first air duct, a second air duct and a filter plate, one end of the second air duct is fixedly connected to a mounting frame, the mounting frame is fixedly connected to a fixing frame facing the first air duct, the bottom end of the fixing frame is provided with a first socket for the filter plate to pass through, one end of the first air duct is provided with a second socket corresponding to the first socket in vertical projection, the bottom end of the first air duct is connected to a sealing plate, and the filter plate is clamped on the top end of the sealing plate.

[0007] By adopting the above technical solution and providing a vertical plug-in structure, the filter plate can be slid out by removing only a few bolts when replacing it, so that the filter structure of the HVAC can be assembled and disassembled more easily.

[0008] The utility model is further configured that the inner wall of the fixing frame is provided with baffles on both sides of the first insertion port, and the distance between the two baffles is greater than the thickness of the filter plate.

[0009] By adopting the above technical solution, the airflow flowing along the first air duct into the second air duct is effectively and fully filtered.

[0010] The utility model is further configured such that guide grooves are provided on both sides of one end opposite to the first air duct and the second air duct, and guide strips for matching the guide grooves are fixedly connected on both sides of the sealing plate.

[0011] By adopting the above technical solution, the stability of the filter plate during the removal process is effectively improved, preventing dust on the filter plate from being scraped into the air duct structure, and also making the filter plate easier to install.

[0012] The utility model is further configured such that the length of the guide groove is greater than the guide bar, and the inner wall of the guide groove in the vertical direction is in close contact with the guide bar.

[0013] By adopting the above technical solution, the situation in which the filter plate lacks guidance during movement and thus scrapes against the inside of the air duct structure is effectively avoided.

[0014] The utility model is further configured that bolts are connected between the sealing plate and the bottom surface of the first air duct, and the sealing plate is connected to the bottom end of the second air duct through bolts.

[0015] By adopting the above technical solution, the cross-section of the bottom end of the sealing plate is L-shaped, which effectively improves the sealing between the sealing plate and the first air duct while ensuring a stable connection.

[0016] The utility model is further configured that a concave platform is provided on the top surface of the sealing plate, and the concave platform is used for clamping the filter plate.

[0017] By adopting the above technical solution, the concave platform structure on the top surface of the sealing plate allows easy loading and unloading of the filter plate and convenient snap connection with the sealing plate during installation, and the sealing plate can be smoothly inserted into the installation frame when it moves upward.

[0018] The utility model is further configured such that the width of the second socket is greater than the width of the filter plate, and the width of the sealing plate is greater than the width of the second socket.

[0019] By adopting the above technical solution, the width of the second socket is greater than the filter plate, so that the filter plate can be inserted into the first air duct more easily and is not easily scratched with the first air duct.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model provides a plug-in structure in a vertical direction, and a fixing frame for matching the filter plate is arranged in one section of the air duct. When replacing the filter plate, only a few bolts need to be removed to slide it out. After cleaning, it can be easily slid back in the vertical direction, thereby improving the replacement speed of the filter plate and making it easier to load and unload the filter structure of the HVAC. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded view of the utility model;

[0023] Figure 2 For the utility model Figure 1 A magnified view of middle;

[0024] Figure 3 This is a three-dimensional diagram of the air inlet direction of the utility model;

[0025] Figure 4 This is a three-dimensional diagram from another perspective of the air inlet direction of the utility model;

[0026] Figure 5 This is a three-dimensional diagram of the air outlet direction of the utility model;

[0027] Figure 6 It is a three-dimensional diagram of the fixing frame of the present utility model.

[0028] In the figure: 1, first air duct; 2, second air duct; 3, mounting frame; 4, fixing frame; 5, sealing plate; 6, filter plate; 7, first socket; 8, baffle; 9, recess; 10, guide strip; 11, guide groove; 12, second socket. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1

[0032] A special filter device for HVAC, such as Figure 1-6As shown, it includes a first air duct 1, a second air duct 2 and a filter plate 6, one end of the second air duct 2 is fixedly connected to a mounting frame 3, the mounting frame 3 is fixedly connected to a fixing frame 4 facing the first air duct 1, the bottom end of the fixing frame 4 is provided with a first socket 7 for the filter plate to pass through, one end of the first air duct 1 is provided with a second socket 12 corresponding to the first socket 7 in vertical projection, the bottom end of the first air duct 1 is connected to a sealing plate 5, the top end of the sealing plate 5 is clamped with the filter plate 6, the inner wall of the fixing frame 4 is provided with baffles 8 on both sides of the first socket 7, the spacing between the two baffles 8 is greater than the thickness of the filter plate 6, the baffles 8 are used to block the airflow from flowing along the gap between the filter plate 6 and the fixing frame 4, so that the filter plate 6 can play a good filtering effect, and the airflow flowing from the first air duct 1 to the second air duct 2 is effectively and fully filtered.

[0033] See also Figure 1-5 The sealing plate 5 is connected to the bottom surface of the first air duct 1 by bolts, and is connected to the bottom end of the second air duct 2 by bolts. The width of the second socket 12 is greater than the width of the filter plate 6. The width of the sealing plate 5 is greater than the width of the second socket 12. The width of the second socket 12 is greater than the width of the filter plate 6, so that the filter plate 6 can be more easily inserted into the first air duct 1, and it is not easy to be scratched with the first air duct 1. The width of the sealing plate 5 is greater than the second socket 12, which can effectively avoid air leakage at the connection between the first air duct 1 and the sealing plate 5. The cross-section of the bottom end of the sealing plate 5 is L-shaped, which effectively improves the sealing between the first air duct 1 while ensuring a stable connection. A recessed platform 9 is provided on the top surface of the sealing plate 5, and the recessed platform 9 is used to clamp the filter plate 6. The recessed platform 9 structure on the top surface of the sealing plate 5 allows easy loading and unloading of the filter plate 6 and the sealing plate 5. After the filter plate 6 is taken out, it can be easily removed from the sealing plate 5 for cleaning. During installation, it can be conveniently clamped with the sealing plate 5 and smoothly inserted into the installation frame 3 when the sealing plate 5 moves upward.

[0034] Embodiment 2

[0035] A special filter device for HVAC, such as Figure 1-6As shown, on the basis of Example 1, the difference from Example 1 is that guide grooves 11 are provided on both sides of the opposite ends of the first air duct 1 and the second air duct 2, and guide strips 10 for cooperating with the guide grooves 11 are fixedly connected on both sides of the sealing plate 5. The cooperation between the guide grooves 11 and the guide strips 10 makes the filter plate 6 more stable when moving up and down, and ensures that the filter plate 6 can move vertically up and down, avoiding the filter plate sliding and deflecting and scraping off the dust on the filter plate 6, effectively improving the stability of the filter plate 6 during the disassembly of the filter plate 6, avoiding the dust on the filter plate 6 from being scraped off into the air duct structure, and also making the filter plate 6 easier to install. The length of the guide groove 11 is greater than the guide strip 10, and the inner wall of the guide groove 11 in the vertical direction is in close contact with the guide strip 10. During the whole process of loading and unloading the filter plate 6, it is possible to ensure that the guide strip 10 slides in the guide groove 11, thereby effectively avoiding the lack of guidance when the filter plate 6 moves and the scratching of the inside of the air duct structure.

[0036] The working principle of the utility model is as follows: when the filter plate 6 needs to be disassembled, the bolts on the top and one side of the sealing plate 5 are unscrewed, and the sealing plate 5 is slid downward in the vertical direction to take out the filter plate 6. After the filter plate 6 is cleaned, the filter plate 6 is stuck in the concave platform 9 on the top surface of the sealing plate 5, and inserted upwardly aligned with the second socket 12. With the cooperation of the guide strip 10 and the guide groove 11, the filter plate 6 rises vertically, passes through the first socket 7, and is installed in the installation frame 3, and then the bolts connecting the sealing plate 5 are screwed back.

[0037] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A special filter device for heating, ventilation and air conditioning, comprising a first air duct (1), a second air duct (2) and a filter plate (6), characterized in that: One end of the second air duct (2) is fixedly connected to a mounting frame (3), the mounting frame (3) is fixedly connected to a fixing frame (4) in the direction of the first air duct (1), the bottom end of the fixing frame (4) is provided with a first socket (7) for the filter plate to pass through, one end of the first air duct (1) is provided with a second socket (12) corresponding to the first socket (7) in vertical projection, the bottom end of the first air duct (1) is connected to a sealing plate (5), the top end of the sealing plate (5) is clamped with a filter plate (6).

2. The HVAC filter device according to claim 1, characterized in that: The inner wall of the fixing frame (4) is provided with blocking bars (8) on both sides of the first insertion opening (7), and the distance between the two blocking bars (8) is greater than the thickness of the filter plate (6).

3. The HVAC filter device according to claim 1, characterized in that: Guide grooves (11) are provided on both sides of the opposite ends of the first air duct (1) and the second air duct (2), and guide strips (10) for matching the guide grooves (11) are fixedly connected to both sides of the sealing plate (5).

4. The HVAC filter device according to claim 3, characterized in that: The length of the guide groove (11) is greater than that of the guide bar (10), and the inner wall of the guide groove (11) in the vertical direction is in close contact with the guide bar (10).

5. The HVAC filter device according to claim 1, characterized in that: The sealing plate (5) is connected to the bottom surface of the first air duct (1) by bolts, and is also connected to the bottom end of the second air duct (2) by bolts.

6. The HVAC filter device according to claim 1, characterized in that: The top surface of the sealing plate (5) is provided with a concave platform (9), and the concave platform (9) is used for clamping the filter plate (6).

7. The HVAC filter device according to claim 1, characterized in that: The width of the second socket (12) is greater than the width of the filter plate (6), and the width of the sealing plate (5) is greater than the width of the second socket (12).

Images