A building energy-saving ventilation device

Abstract

This utility model discloses an energy-saving ventilation device for buildings, including a ventilation duct and a fan. The fan is installed near the port of the ventilation duct. A detachable protective mesh plate is installed at one port of the ventilation duct. The protective mesh plate includes a frame and a metal filter screen fixed within the frame. A limiting block is fixed to the inner wall of the ventilation duct port, abutting against the outer side of the protective mesh plate. An installation plate is fixed to the outer wall of the ventilation duct. The installation plate has a limiting groove, and a limiting rod is fixed in the limiting groove. An insert block that penetrates the side wall of the ventilation duct is slidably mounted on the limiting rod, used to abut against the outer side of the protective mesh plate to achieve locking. This utility model belongs to the field of building ventilation technology, specifically referring to an energy-saving ventilation device for buildings.

Description

Technical Field

[0001] This utility model belongs to the field of building ventilation technology, specifically referring to a building energy-saving ventilation device. Background Technology

[0002] In modern buildings, ventilation ducts are a core component of the system. Their ends are usually equipped with protective nets or filters to prevent birds, rodents, large debris, and other animals from entering the ducts. At the same time, the filters can also block dust, pollen, and other particulate matter, protect the fans and other equipment inside the ducts, and ensure the cleanliness of the supplied air.

[0003] Currently, protective nets or filters at the ends of ventilation ducts are generally installed by directly fastening screws. Disassembly, cleaning, or replacement requires the use of tools such as screwdrivers, which is cumbersome. For ventilation openings installed at higher positions, maintenance work is inconvenient and poses safety hazards. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a building energy-saving ventilation device that effectively solves the problem that protective nets cannot be quickly and tool-free disassembled and assembled.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A building energy-saving ventilation device includes a ventilation duct and a fan. The fan is installed near the port of the ventilation duct. A detachable protective mesh plate is installed at one end of the ventilation duct. The protective mesh plate includes a frame and a metal filter fixed in the frame. A limiting block is fixedly provided on the inner wall of the ventilation duct port and abuts against the outer side of the protective mesh plate. An installation plate is fixed on the outer wall of the ventilation duct. A limiting groove is provided on the installation plate. A limiting rod is fixed in the limiting groove. An insert block that penetrates the side wall of the ventilation duct is slidably provided on the limiting rod to abut against the outer side of the protective mesh plate to achieve locking.

[0006] Preferably, a movable frame is slidably fitted on the outside of the ventilation duct port, and a wide edge extending outward is fixed at the ventilation duct port. A spring is connected between the movable frame and the wide edge, and a spring fitted on the limiting rod is connected between the insert block and the inner wall of the limiting groove. A wedge-shaped push groove is provided on the outside of the insert block, and a push block is fixed on the edge of the movable frame. One end of the push block cooperates with the inclined surface of the wedge-shaped push groove.

[0007] Preferably, there are four limiting blocks and four insert blocks, which are respectively set at the center of the top, bottom, left and right sides of the protective mesh plate.

[0008] Preferably, the protective mesh panel has symmetrical finger grooves on both the left and right sides.

[0009] Preferably, the inclined surfaces of the push block and the push groove are coplanar.

[0010] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure: Through the structure of push block and wedge-shaped push groove, the protective net plate can be unlocked by pressing with only one hand. The disassembly process does not require any tools, which greatly simplifies the operation steps and reduces maintenance time and labor costs. The four-way inserts firmly abut against the protective net plate under the pre-tightening force of spring two, making it close to the limiting block and ensuring the stability of the installation. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of a building energy-saving ventilation device proposed in this utility model. Figure 1 ;

[0012] Figure 2 A cross-sectional view of a building energy-saving ventilation device proposed in this utility model. Figure 1 ;

[0013] Figure 3 A schematic diagram of the overall structure of a building energy-saving ventilation device proposed in this utility model. Figure 2 ;

[0014] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0015] Figure 5 A cross-sectional view of a building energy-saving ventilation device proposed in this utility model. Figure 2 ;

[0016] Figure 6 for Figure 5 A magnified view of a section at point B.

[0017] Among them, 1. ventilation duct, 2. fan, 3. protective mesh plate, 4. metal filter, 5. limiting block, 6. mounting plate, 7. limiting groove, 8. limiting rod, 9. insert block, 10. movable frame, 11. wide edge, 12. spring one, 13. spring two, 14. push groove, 15. push block, 16. finger groove. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-6 As shown, the present invention proposes an energy-saving ventilation device for buildings, including a ventilation duct 1 and a fan 2. The fan 2 is installed near the port of the ventilation duct 1. A detachable protective mesh plate 3 is installed at one end of the ventilation duct 1. The protective mesh plate 3 has symmetrical finger grooves 16 on its left and right sides for easy disassembly. The protective mesh plate 3 includes a frame and a metal filter 4 fixed in the frame. A limiting block 5 is fixedly provided on the inner wall of the port of the ventilation duct 1, abutting against the outer side of the protective mesh plate 3. An installation plate 6 is fixed on the outer wall of the ventilation duct 1. The installation plate 6 has a limiting groove 7. A limiting rod 8 is fixed in the limiting groove 7. An insert 9 that penetrates the side wall of the ventilation duct 1 is slidably provided on the limiting rod 8 for abutting against the outer side of the protective mesh plate 3 to achieve locking.

[0021] like Figure 4 , 6 As shown, a movable frame 10 is slidably fitted on the outer side of the ventilation duct 1 port. A wide edge 11 extending outward is fixed at the ventilation duct 1 port. A spring 12 is connected between the movable frame 10 and the wide edge 11. A spring 2 13 fitted on the limiting rod 8 is connected between the insert block 9 and the inner wall of the limiting groove 7. A wedge-shaped push groove 14 is provided on the outer side of the insert block 9. A push block 15 is fixed on the edge of the movable frame 10. One end of the push block 15 cooperates with the inclined surface of the wedge-shaped push groove 14. Pressing the movable frame 10 can drive the push block 15 to squeeze the inclined surface of the push groove 14, forcing the insert block 9 to move outward to compress the spring 2 13 and release the lock on the protective mesh plate 3. The inclined surfaces of the push block 15 and the push groove 14 are coplanar, reducing local wear.

[0022] like Figure 1 , 5 As shown, there are four limit blocks 5 and four insertion blocks 9, which are respectively set in the middle of the four sides of the protective mesh plate 3, so that the force is evenly distributed and the fixing stability is improved.

[0023] In practical use, when disassembling the protective mesh plate 3, press the movable frame 10, which is sleeved outside the ventilation duct 1, with your fingers. The movable frame 10 moves towards the insert block 9 against the elastic force of the spring 12. The push block 15, which is fixed on its edge, moves synchronously. The end of the push block 15 inserts into and presses the inclined surface of the wedge-shaped push groove 14 on the insert block 9. The linear motion of the push block 15 is converted into the horizontal outward motion of the insert block 9. The four insert blocks 9 move outward at the same time, disengaging from the contact state with the protective mesh plate 3 and stretching the spring 13. When the insert block 9 has enough space, you can use your fingers to grab the finger groove 16 on the protective mesh plate 3 and easily remove the protective mesh plate 3 from the ventilation duct 1.

[0024] After the movable frame 10 is released, the rebound force of the first spring 12 will push the movable frame 10 to slide outward and reset. The push block 15 on the movable frame 10 will also exit the wedge-shaped push groove 14. Then, the rebound force of the second spring 13 will pull the four insert blocks 9 to reset inward and return to the initial state.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A building energy-saving ventilation device, comprising a ventilation duct (1) and a fan (2), wherein the fan (2) is installed near the port of the ventilation duct (1), characterized in that: A detachable protective mesh plate (3) is installed at one end of the ventilation duct (1). A limiting block (5) is fixedly provided on the inner wall of the ventilation duct (1) and abuts against the outer side of the protective mesh plate (3). An installation plate (6) is fixed on the outer wall of the ventilation duct (1). A limiting groove (7) is provided on the installation plate (6). A limiting rod (8) is fixed in the limiting groove (7). An insert (9) that penetrates the side wall of the ventilation duct (1) is slidably provided on the limiting rod (8) and is used to abut against the outer side of the protective mesh plate (3) to achieve locking.

2. The building energy-saving ventilation equipment according to claim 1, characterized in that: A movable frame (10) is slidably fitted on the outside of the ventilation duct (1). A wide edge (11) extending outward is fixed at the port of the ventilation duct (1). A spring (12) is connected between the movable frame (10) and the wide edge (11). A spring (13) fitted on the limiting rod (8) is connected between the insert (9) and the inner wall of the limiting groove (7). A wedge-shaped push groove (14) is provided on the outside of the insert (9). A push block (15) is fixed on the edge of the movable frame (10). One end of the push block (15) is engaged with the inclined surface of the wedge-shaped push groove (14).

3. The building energy-saving ventilation equipment according to claim 2, characterized in that: The number of the limiting block (5) and the insert block (9) are both four, which are respectively set in the middle of the four sides of the protective mesh plate (3) on the top, bottom, left and right.

4. A building energy-saving ventilation device according to any one of claims 1-3, characterized in that: The protective mesh panel (3) has symmetrical finger grooves (16) on its left and right sides.

5. A building energy-saving ventilation device according to claim 2, characterized in that: The inclined surfaces of the push block (15) and the push groove (14) are coplanar.

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