Building ventilator capable of being quickly disassembled and assembled

Abstract

The utility model discloses a building ventilator capable of being quickly disassembled and assembled, belongs to the field of fan installation, and aims to realize quick disassembly and assembly of a ventilator shell and a wind wheel assembly. A mounting support is arranged between the wind wheel assembly and the ventilator shell and comprises a plurality of connecting rods distributed in the circumferential direction of the ventilator shell, and the connecting rods extend in the radial direction of the ventilator shell. Fixed bases in one-to-one correspondence with the connecting rods are arranged on the inner side wall of the ventilator shell; a groove corresponding to the end of the connecting rod is formed in the outer side face of the fixing base in the axial direction of the ventilator shell. The end of the connecting rod is inserted into the groove, and the connecting rod is fastened to the fixed base through a connecting screw. The end of the connecting rod is closely matched with the groove, the connecting screw is used, the screw is unscrewed, and the wind wheel assembly is taken out in the axial direction of the ventilator shell, so that disassembly is achieved. After cleaning, the wind wheel assembly is pushed in in the axial direction of the ventilator shell, the end of the connecting rod is inserted into the groove of the fixed base, the screw is screwed on, and assembling is achieved. And the operation is simple and easy.

Description

Technical Field

[0001] The utility model belongs to the field of ventilator installation, in particular to a building ventilator which can be quickly disassembled and assembled. Background Art

[0002] A building ventilator is a device used to improve the air quality in a building. It can bring fresh air from the outside into the room, and at the same time exhaust the dirty air from the room to the outside, so as to ensure the circulation and freshness of the indoor air. A building ventilator usually consists of an air inlet, a motor, an impeller, an air outlet and other parts. It can be installed in the building through a pipe or by directly opening a hole in the wall. When the motor rotates, the impeller will inhale the outdoor air, and after filtering and purification, the fresh air will be sent into the room through the air outlet. When maintaining a building ventilator, the ventilator needs to be thoroughly cleaned. At present, the common practice is to remove it from the ventilation pipe for cleaning.

[0003] In order to facilitate installation and disassembly, a large number of ventilators that are easy to disassemble have emerged, such as the application number CN202122394842.8, which is named a building ventilator that is easy to maintain. The disclosed structure is as follows: it includes a ventilator body, an extension cover, and a slide plate fixed to the end of the extension cover. The end of the ventilator body is distributed with a ventilation duct, and both ends of the ventilator body are provided with a receiving ring groove; the receiving ring groove is an annular column structure, and the inner ring surface of the receiving ring groove is provided with two sets of retaining rings of different sizes; the two sets The retaining rings are distributed on both the inner and outer sides of the extension cover, and a first sealing ring is arranged on the surface of the retaining ring; the slide plate is slidably connected in the receiving ring groove, and a second sealing ring is arranged on the inner and outer ring surfaces of the slide plate, and a locking piece is arranged between the extension cover and the ventilator body; a buckle plate and a fixing screw screwed on the outer ring surface of the buckle plate, the buckle plate is an annular structure with an "L" shape in cross section, and the buckle plate is arranged at the end of the extension cover; the fixing screw passes through the side plate of the buckle plate and is screwed on the outer wall of the air ventilating duct, and a sealing piece is arranged between the air ventilating duct and the buckle plate.

[0004] The above patent application discloses a building ventilator that is easy to maintain. The ventilator body includes a ventilator casing and a wind wheel assembly located in the ventilator casing. It only realizes a connection structure between the ventilator body and the air duct that is easy to disassemble and assemble, but does not disclose the connection structure between the ventilator casing and the wind wheel assembly of the ventilator body. Utility Model Content

[0005] The utility model aims to provide a building ventilator which can be quickly disassembled and assembled, so as to realize the quick disassembly and assembly between the ventilator housing and the wind wheel assembly.

[0006] The technical solution adopted by the utility model is: a building ventilator that can be quickly disassembled and assembled, comprising a ventilator housing, a wind wheel assembly located in the ventilator housing and an air ventilating duct located at the end of the ventilator housing, the ventilator housing and the air ventilating duct are butted together to form a butt joint, a mounting bracket is arranged between the wind wheel assembly and the ventilator housing, the mounting bracket comprises a plurality of connecting rods distributed circumferentially along the ventilator housing, the connecting rods extend radially along the ventilator housing; a fixing base corresponding to the connecting rod is arranged on the inner side wall of the ventilator housing; a groove corresponding to the end of the connecting rod is opened on the outer side surface of the fixing base along the axial direction of the ventilator housing; the end of the connecting rod is inserted into the groove, and the connecting rod is fastened to the fixing base by a connecting screw.

[0007] Furthermore, the end of the connecting rod is T-shaped; the groove of the fixed base is a T-slot adapted to the end of the connecting rod.

[0008] Furthermore, inner sealing rings are respectively provided at both ends of the fan housing, and the inner sealing rings are tightly fitted on the outer side wall of the end of the fan housing;

[0009] An outer movable ring is sleeved on the outer side wall of one end of the ventilation duct adjacent to the ventilator housing, and the outer movable ring is movably matched with the outer side wall of the ventilation duct along the axial direction of the ventilation duct;

[0010] A slot which is concave in the axial direction is provided at the mating end of the outer movable ring, and the slot is adapted to the inner closed ring;

[0011] The inner closed ring is sealed and inserted into the slot of the outer movable ring; and fixing holes are respectively arranged at corresponding positions on the outer movable ring and the inner closed ring.

[0012] Furthermore, a sealing ring is fixedly connected to the outer end face of the inner closed ring, and a concave sealing groove adapted to the sealing ring is provided on the bottom wall of the slot of the outer movable ring, and the sealing ring is inserted into the sealing groove to form a sealing portion; the sealing portion is aligned with the butt joint between the centering fan housing and the air duct.

[0013] Furthermore, the sealing ring includes a rectangular segment with a rectangular cross section and a triangular segment with a triangular cross section along the axial direction, and the rectangular segment is fixedly connected to the outer end surface of the inner closed ring.

[0014] Furthermore, several limit blocks are evenly fixed along the annular direction on the outer wall of the air venting duct; the limit blocks are located on the rear side of the outer movable ring along the axial direction of the air venting duct; each limit block is matched with a push block along the axial direction of the air venting duct, and the push block is movably inserted into the push block along the axial direction of the air venting duct, and its front end is connected to the end face of the outer movable ring.

[0015] Furthermore, the push block is rod-shaped, including a rod portion and an expansion head at the end of the rod portion.

[0016] The beneficial effects of the utility model are as follows: the connecting rod of the wind wheel assembly is positioned by the groove on the fixed base, so that the end of the connecting rod is closely matched with the groove, and the connection screws are axially installed into the threaded holes on the end of the connecting rod and the groove, so that the two are fixed. When disassembling, simply unscrew the screws and take out the wind wheel assembly along the axial direction of the fan housing. The wind wheel assembly can be disassembled from the fan housing for thorough cleaning. After cleaning, let the connecting rod ends of the wind wheel assembly be aligned with the grooves of the fixed base one by one. Push the wind wheel assembly in along the axial direction of the fan housing, insert the connecting rod end into the groove of the fixed base, tighten the screws, and the assembly is completed. Its disassembly and assembly operations are simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the installation of the wind wheel assembly;

[0020] Figure 4 This is the front view of the utility model;

[0021] Figure 5 This is a cross-sectional view of the ventilation duct and the ventilator before assembly;

[0022] Figure 6 This is a cross-sectional view of the ventilation duct and ventilation assembly;

[0023] In the figure, there are ventilation duct 1, limit block 2, outer movable ring 3, slot 3A, sealing groove 3B, inner sealing ring 4, fan housing 5, push block 6, rod 6A, expansion head 6B, sealing ring 7, rectangular section 7A, triangular section 7B, wind wheel assembly 8, connecting rod 8A, fixed base 9, groove 9A, fixing hole 10, and butt joint 11. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0025] The utility model discloses a building ventilator that can be quickly disassembled and assembled, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it includes a fan housing 5, a wind wheel assembly 8 located in the fan housing 5, and an air duct 1 located at the end of the fan housing 5. The fan housing 5 and the air duct 1 are connected to form a connection seam 11. A mounting bracket is arranged between the wind wheel assembly 8 and the fan housing 5. The mounting bracket includes a plurality of connecting rods 8A distributed circumferentially along the fan housing 5, and the connecting rods 8A extend radially along the fan housing 5; a fixing base 9 corresponding to the connecting rod 8A is arranged on the inner side wall of the fan housing 5; a groove 9A corresponding to the end of the connecting rod 8A is opened on the outer side surface of the fixing base 9 along the axial direction of the fan housing 5; the end of the connecting rod 8A is inserted into the groove 9A, and the connecting rod 8A is fastened to the fixing base 9 by connecting screws.

[0026] The connecting rod 8A of the wind wheel assembly 8 is positioned by the groove 9A on the fixed base 9, so that the end of the connecting rod 8A is closely matched with the groove 9A, and the connection screws are installed axially into the threaded holes on the end of the connecting rod 8A and the groove 9A to achieve the fixation of the two. When disassembling, simply unscrew the screws and take out the wind wheel assembly 8 along the axial direction of the fan housing 5. In this way, the wind wheel assembly 8 can be removed from the fan housing 5 and thoroughly cleaned. After cleaning, let the ends of the connecting rod 8A of the wind wheel assembly 8 be aligned one by one with the groove 9A of the fixed base 9. Push the wind wheel assembly 8 in along the axial direction of the fan housing 5, so that the end of the connecting rod 8A is inserted into the groove 9A of the fixed base 9, and screw on the screws to complete the assembly. Its disassembly and assembly operation is simple and easy.

[0027] The end of the connecting rod 8A is T-shaped; the groove 9A of the fixing base 9 is a T-shaped groove adapted to the end of the connecting rod 8A.

[0028] When the traditional fan housing 5 is docked with the ventilation duct 1, it is necessary to open a receiving ring groove 2 at the end of the fan housing 5, which not only increases the processing steps, but also has certain requirements for the wall thickness of the fan housing 5. Too thin a wall thickness is not conducive to processing the notch, and there is a risk of reducing the strength of the fan housing and affecting its service life. Increasing the wall thickness increases the overall weight of the fan, which not only increases the cost but also brings inconvenience to transportation and construction. In order to overcome the above problems and meet the purpose of rapid assembly and disassembly, in the utility model, inner closed rings 4 are respectively provided at both ends of the fan housing 5, and the inner closed rings 4 are tightly fitted on the outer side wall of the end of the fan housing 5. An outer movable ring 3 is provided on the outer side wall of the ventilation duct 1 at one end adjacent to the fan housing 5, and the outer movable ring 3 is movably matched with the outer side wall of the ventilation duct 1 along the axial direction of the ventilation duct 1. A slot 3A concave in the axial direction is provided at the mating end of the outer movable ring 3, and the slot 3A is adapted to the inner closed ring 4. The inner closed ring 4 is sealed and inserted into the slot 3A of the outer movable ring 3 ; and fixing holes 10 are respectively provided at corresponding positions on the outer movable ring 3 and the inner closed ring 4 .

[0029] The structure has the following advantages: first, the inner closed ring 4 is sleeved on the outer wall of the fan housing 5, the outer movable ring 3 is sleeved on the outer wall of the air duct 1, and the inner closed ring 4 is inserted into the slot 3A of the outer movable ring 3 to achieve docking. There is no need to process the fan housing 5 and the air duct 1, and the impact on the fan housing 5 and the air duct 1 is relatively small; then, since the inner closed ring 4 is inserted into the slot 3A of the outer movable ring 3, the plugging and unplugging operation is used to achieve assembly and disassembly, and the assembly and disassembly are simple and easy; third, corresponding positions on the outer movable ring 3 and the inner closed ring 4 are respectively provided with fixing holes 10, and the corresponding fixing holes 10 on the outer movable ring 3 and the inner closed ring 4 are simultaneously inserted into the corresponding fixing holes 10 on the outer movable ring 3 and the inner closed ring 4 by means of a latch, a connecting bolt assembly, etc., which can ensure the stability and reliability of the connection between the outer movable ring 3 and the inner closed ring 4; fourth, the inner closed ring 4 is sealed and inserted into the slot 3A of the outer movable ring 3. Sealing means that the inner closed ring 4 and the outer movable ring 3 have a sealing structure, which can avoid air leakage and ensure air supply efficiency.

[0030] The sealing structure between the inner closed ring 4 and the outer movable ring 3 can be a labyrinth seal, a sealing strip, etc. For example, a sealing ring 7 is fixedly connected to the outer end face of the inner closed ring 4, and a concave sealing groove 3B adapted to the sealing ring 7 is provided on the bottom wall of the slot 3A of the outer movable ring 3. The sealing ring 7 is inserted into the sealing groove 3B to form a sealing part; the sealing part is aligned with the butt joint 11 between the fan housing 5 and the ventilation duct 1.

[0031] The cross section of the sealing ring 7 may be circular or square. In this embodiment, the sealing ring 7 includes a rectangular section 7A with a rectangular cross section and a triangular section 7B with a triangular cross section along the axial direction. The rectangular section 7A is fixedly connected to the outer end surface of the inner closed ring 4. Since the sealing groove 3B is adapted to the sealing ring 7, the sealing groove 3B includes a concave triangular groove. After the triangular section 7B is inserted into the triangular portion of the sealing groove 3B, the sealing length is increased, forming a sealing labyrinth, which is conducive to improving the sealing performance.

[0032] Preferably, Figure 5 and Figure 6 As shown, several limit blocks 2 are evenly fixed along the circumferential direction on the outer wall of the air duct 1; the limit blocks 2 are located on the rear side of the outer movable ring 3 along the axial direction of the air duct 1; each limit block 2 is matched with a push block 6 along the axial direction of the air duct 1, and the push block 6 is movably inserted into the push block 6 along the axial direction of the air duct 1, and its front end is connected to the end face of the outer movable ring 3.

[0033] Among them, the limit block 2 is located at the rear side of the outer movable ring 3, which indicates the relative position relationship between the limit block 2 and the outer movable ring 3, which means that along the axial direction of the ventilation duct 1, the one that is relatively closer to the fan housing 5 is in front, and the one that is farther away from the fan housing is in the back. That is, the outer movable ring 3 is in front of the limit block 2, and the limit block is in the back of the outer movable ring 3. The limit block 2 has a dual role. First, it guides the push block 6; second, it limits the outer movable ring 3 and limits the maximum distance of the outer movable ring 3 moving backward. When the push block 6 is pulled backward, the outer movable ring 3 is pulled backward, and the outer movable ring 3 is separated from the inner closed ring 4, so that the fan housing 5 can be taken out from the ventilation duct 1. During installation, align the fan housing 5 with the ventilation duct 1, and when the push block 6 is pushed forward, the outer movable ring 3 is pushed forward, and the outer movable ring 3 is sleeved on the inner closed ring 4. The outer movable ring 3 and the inner closed ring 4 are installed by bolts or latches.

[0034] In order to prevent the push block 6 from separating from the limit block 2, the push block 6 is rod-shaped and includes a rod portion 6A and an expansion head 6B at the end of the rod portion 6A. The rod portion 6A is convenient for axial movement in the limit block 2, and the expansion head 6B prevents the push block 6 from separating from the limit block 2.

Claims

1. A building ventilator capable of rapid assembly and disassembly, comprising a ventilator housing (5), a wind wheel assembly (8) located in the ventilator housing (5), and an air ventilating duct (1) located at an end of the ventilator housing (5), wherein the ventilator housing (5) and the air ventilating duct (1) are butt-jointed to form a butt joint (11), and characterized in that: A mounting bracket is provided between the wind wheel assembly (8) and the fan housing (5), and the mounting bracket includes a plurality of connecting rods (8A) distributed circumferentially along the fan housing (5), and the connecting rods (8A) extend radially along the fan housing (5); a fixing base (9) corresponding to the connecting rods (8A) is provided on the inner side wall of the fan housing (5); a groove (9A) corresponding to the end of the connecting rod (8A) is provided on the outer side surface of the fixing base (9) along the axial direction of the fan housing (5); the end of the connecting rod (8A) is inserted into the groove (9A), and the connecting rod (8A) is fastened to the fixing base (9) by a connecting screw.

2. The rapidly disassembled building ventilator according to claim 1, characterized in that: The end of the connecting rod (8A) is T-shaped; the groove (9A) of the fixed base (9) is a T-shaped groove adapted to the end of the connecting rod (8A).

3. The quickly detachable building ventilator according to claim 1 or 2, characterized in that: Inner sealing rings (4) are respectively arranged at both ends of the fan housing (5), and the inner sealing rings (4) are tightly fitted on the outer side wall of the end of the fan housing (5); An outer movable ring (3) is sleeved on the outer side wall of one end of the ventilation duct (1) adjacent to the fan housing (5), and the outer movable ring (3) is movably matched with the outer side wall of the ventilation duct (1) along the axial direction of the ventilation duct (1); A slot (3A) which is concave in the axial direction is provided at the mating end of the outer movable ring (3), and the slot (3A) is adapted to fit the inner closed ring (4); The inner closed ring (4) is sealed and inserted into the slot (3A) of the outer movable ring (3); and fixing holes (10) are respectively provided at corresponding positions on the outer movable ring (3) and the inner closed ring (4).

4. The rapidly disassembled building ventilator according to claim 3, characterized in that: A sealing ring (7) is fixedly connected to the outer end surface of the inner closed ring (4), and a concave sealing groove (3B) adapted to the sealing ring (7) is provided on the bottom wall of the slot (3A) of the outer movable ring (3), and the sealing ring (7) is inserted into the sealing groove (3B) to form a sealing portion; the sealing portion is aligned with the butt joint (11) between the central fan housing (5) and the ventilation duct (1).

5. The rapidly disassembled building ventilator according to claim 4, characterized in that: The sealing ring (7) comprises a rectangular section (7A) with a rectangular cross section and a triangular section (7B) with a triangular cross section along the axial direction. The rectangular section (7A) is fixedly connected to the outer end surface of the inner closed ring (4).

6. The rapidly disassembled building ventilator according to claim 3, characterized in that: A plurality of limit blocks (2) are evenly fixed along the annular direction on the outer wall of the ventilation duct (1); the limit blocks (2) are located at the rear side of the outer movable ring (3) along the axial direction of the ventilation duct (1); each limit block (2) is matched with a push block (6) along the axial direction of the ventilation duct (1); the push block (6) is movably inserted into the push block (6) along the axial direction of the ventilation duct (1), and its front end is connected to the end face of the outer movable ring (3).

7. The rapidly disassembled building ventilator according to claim 6, characterized in that: The push block (6) is rod-shaped and comprises a rod portion (6A) and an expansion head (6B) at the end of the rod portion (6A).

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