Simple installation structure of laboratory exhaust device

Abstract

The utility model discloses a simple mounting structure of a laboratory exhaust device, which comprises a vertical mounting plate fixed on a wall body, and horizontal fixing plates horizontally extending forwards are fixed on the upper part and the lower part of the middle part of the vertical mounting plate; a vertical limiting strip is fixed on the front wall surface of the vertical mounting plate at the left part between the two horizontal fixing plates; a vertical plate part of a connecting seat of a fan to be mounted is positioned between the two horizontal fixing plates; the vertical mounting plate is fixed on the wall surface, and the fan is fixed on the vertical mounting plate, so that the fan is not in direct contact connection with the wall surface, the wall surface is not influenced during disassembly and assembly, the right connecting bolt and the left connecting bolt are positioned on the left side and the right side of the fan during disassembly and assembly, the operation is convenient, and only the right connecting bolt needs to be disassembled. And the fan can be disassembled by unscrewing the left connecting bolt, so that the fan is convenient to disassemble.

Description

Technical fields:

[0001] This utility model relates to the field of fan installation technology, and more specifically to a simple installation structure for a laboratory exhaust device. Background technology:

[0002] Existing laboratories generally need to be equipped with exhaust systems to discharge waste gases or some toxic gases generated in the laboratory and then treat them in the corresponding post-waste treatment equipment to ensure the environment in the laboratory.

[0003] Existing laboratory ventilation systems typically include fans or blowers. For fans, PP diagonal-flow fans are generally used, fixed to the wall. The exhaust end connects to the intake end of a vertically extending, bendable exhaust pipe installed above the laboratory. Existing fans have a frame mounted on the rear wall, typically consisting of vertical plates. Horizontal connecting plates are fixed to the upper and lower parts of the front wall of the vertical plates, with the front end of the horizontal connecting plates fixed inside the fan's duct. The vertical plates have formed connecting through holes, and expansion bolts are installed on the wall for connection. The vertical plates of the fan frame are directly pressed against the wall. When the fan needs to be disassembled for cleaning, maintenance, or repair, all the nuts on the expansion bolts must be removed. Since the nuts are located at the rear of the fan, a wrench must be inserted behind the fan for operation, making disassembly and repair cumbersome. Furthermore, during disassembly, the fan frame may bump against the wall, causing scratches and affecting the wall's appearance.

[0004] Moreover, after repeated disassembly and reassembly, the expansion bolts are prone to loosening from the wall, requiring disassembly and reinstallation. However, the holes at the original installation locations of the expansion bolts are too large to be reused, so the installation locations need to be changed, requiring drilling in other locations on the wall for installation, which damages the wall again. Utility Model Content:

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a simple installation structure for a laboratory exhaust device. It fixes the fan to the vertical mounting plate on the wall, so that the fan does not directly contact the wall. This ensures that the wall will not be affected during disassembly and assembly. Moreover, the right and left connecting bolts are located on the left and right sides of the fan, making it easy to operate. The fan can be disassembled simply by removing the right connecting bolt and loosening the left connecting bolt.

[0006] The solution of this utility model to the aforementioned technical problem is:

[0007] A simplified installation structure for a laboratory exhaust device includes a vertical mounting plate fixed to a wall. Horizontal fixing plates extending forward are fixed to the upper and lower parts of the middle section of the vertical mounting plate. A vertical limiting strip is fixed to the front wall of the vertical mounting plate at the left side between the two horizontal fixing plates. The vertical plate portion of the connecting seat of the fan to be installed is located between the two horizontal fixing plates. The rear wall of the vertical plate portion is in close contact with the front wall of the vertical mounting plate, and the left side wall of the vertical plate portion presses against the right side wall of the vertical limiting strip.

[0008] The middle part of the transverse pressing and limiting plate is located between two horizontal fixed plates. The elastic sheet fixed on the rear wall of the transverse pressing and limiting plate presses against the front wall of the vertical plate of the connecting seat. The left part of the transverse pressing and limiting plate is fixedly connected to the vertical mounting plate by multiple left connecting bolts. The right part of the transverse pressing and limiting plate is fixedly connected to the vertical mounting plate by multiple right connecting bolts. The right limiting plate is inserted into the screw part of the right connecting bolt. The left side wall of the right limiting plate presses against the right side wall of the vertical plate of the connecting seat.

[0009] Both horizontal fixing plates have elastic clamping layers fixed on their opposing wall surfaces. The elastic clamping layers press against the outer wall of the horizontal connecting plate fixed at the upper or lower part of the corresponding connecting seat.

[0010] A left elastic clamping plate is pressed against the rear wall of the left side of the transverse clamping limiting plate. The rear wall of the left elastic clamping plate is pressed against the front wall of the vertical mounting plate. The screw parts of multiple left connecting bolts are inserted into the corresponding connecting through holes of the transverse clamping limiting plate and the left elastic clamping plate and screwed into the corresponding screwing through holes formed on the left side of the vertical mounting plate. The rear end face of the rotating part of the left connecting bolt is pressed against the front wall of the transverse clamping limiting plate.

[0011] A right elastic plate is pressed against the rear wall of the right part of the transverse pressing and limiting plate, a right limiting plate is pressed against the rear wall of the right elastic plate, a limiting elastic layer is fixed on the left side wall of the right limiting plate, the left side wall of the limiting elastic layer is pressed against the right side wall of the vertical plate of the connecting seat, and the rear wall of the right limiting plate is pressed against the front wall of the vertical mounting plate.

[0012] The outstanding effect of this utility model is:

[0013] Compared with existing technologies, this method fixes the fan to the wall by fixing the vertical mounting plate, so that it does not directly contact the wall. This ensures that the wall will not be affected during disassembly and assembly. Moreover, the right and left connecting bolts are located on the left and right sides of the fan, making it easy to operate. The fan can be disassembled simply by removing the right connecting bolt and loosening the left connecting bolt. Attached image description:

[0014] Figure 1This is a partial structural schematic diagram of the present invention;

[0015] Figure 2 This is a partial sectional view of the present invention;

[0016] Figure 3 This is a partial structural diagram of the vertical mounting plate and the connecting seat of this utility model. Detailed implementation method:

[0017] For example, see below. Figures 1 to 3 As shown, a simple installation structure for a laboratory exhaust device includes a vertical mounting plate 20 fixed to a wall 10. The vertical mounting plate 20 can be fixed to the wall 10 by expansion bolts or fixed to the wall surface by other means.

[0018] The upper and lower parts of the middle of the vertical mounting plate 20 are both fixed with horizontally extending horizontally fixed plates 21. A vertical limiting strip 22 is fixed on the front wall of the vertical mounting plate 20 at the left part between the two horizontal fixed plates 21. The vertical plate part 102 of the connecting seat 101 of the fan 100 to be installed is located between the two horizontal fixed plates 21.

[0019] The fan 100 in this embodiment is a PP mixed flow fan. Its connecting seat 101 includes a vertical plate portion 102. A horizontal connecting plate 103 is formed or fixed on the front wall surface of the upper and lower portions of the vertical plate portion 102. The front end of the horizontal connecting plate 103 is fixed on the rear wall surface of the fan 100.

[0020] During installation, the rear wall of the vertical plate 102 is in close contact with the front wall of the vertical mounting plate 20, and the left side wall of the vertical plate 102 is pressed against the right side wall of the vertical limiting strip 22.

[0021] The middle part of the transverse clamping limit plate 30 is located between two horizontal fixed plates 21. The elastic sheet 31 fixed on the rear wall of the transverse clamping limit plate 30 presses against the front wall of the vertical plate part 102 of the connecting seat 101. The left elastic clamping plate 50 is pressed against the rear wall of the left part of the transverse clamping limit plate 30. The rear wall of the left elastic clamping plate 50 presses against the front wall of the vertical mounting plate 20. The screw parts of multiple left connecting bolts 1 are inserted into the corresponding connecting through holes of the transverse clamping limit plate 30 and the left elastic clamping plate 50 and screwed into the corresponding screwing through holes formed on the left side of the vertical mounting plate 20. The front end of the screw part of the left connecting bolt 1 is fitted with a washer, which is clamped between the rear end face of the rotating part and the front wall face of the transverse clamping limit plate 30.

[0022] A right elastic plate 60 is pressed against the rear wall of the right part of the transverse pressing and limiting plate 30, a right limiting plate 40 is pressed against the rear wall of the right elastic plate 60, a limiting elastic layer 41 is fixed on the left side wall of the right limiting plate 40, the left side wall of the limiting elastic layer 41 is pressed against the right side wall of the vertical plate part 102 of the connecting seat 101, and the rear wall of the right limiting plate 40 is pressed against the front wall of the vertical mounting plate 20.

[0023] The screw portion of the right connecting bolt 2 is inserted into the corresponding through hole on the right side of the transverse clamping limit plate 30, the corresponding through hole on the right side elastic plate 60, and the corresponding through hole on the right limit plate 40. The rear end of the screw portion of the right connecting bolt 2 is screwed into the corresponding screwed through hole on the right side of the vertical mounting plate 20. A washer is inserted into the front part of the screw portion of the right connecting bolt 2, and the washer is clamped between the rear end face of the rotating part and the front wall face of the transverse clamping limit plate 30.

[0024] In this embodiment, the right connecting bolt 2 and the left connecting bolt 1 are located behind the left and right sides of the fan 100, which provides a large operating space and facilitates operation when installing and removing the right connecting bolt 2 and the left connecting bolt 1.

[0025] Furthermore, each of the two horizontal fixing plates 21 has an elastic pressing layer 211 fixed on its opposite wall surface. The elastic pressing layer 211 presses against the outer wall of the horizontal connecting plate 103 fixed at the upper or lower part of the corresponding connecting seat 101.

[0026] The top and bottom surfaces of the middle part of the transverse pressing and limiting plate 30 are both fixed with an inner elastic layer 3, and the outer wall of the inner elastic layer 3 is pressed against the inner wall of the corresponding horizontal connecting plate 103.

[0027] The opposing walls at the right ends of the two elastic clamping layers 211 are formed with inclined guide walls, which facilitate the connection seat 101 to move out or be inserted along the two horizontal fixing plates 21.

[0028] In this embodiment, the connecting seat 101 is directly fixed on the vertical mounting plate 20, which will not cause damage or scratches to the surface of the wall 10, thus ensuring the cleanliness and integrity of the wall surface.

[0029] In this embodiment, during disassembly, it is only necessary to remove all the right connecting bolts 2 (only 2 right connecting bolts 2 are installed in this embodiment) and loosen all the left connecting bolts 1 (only 2 left connecting bolts 1 are installed in this embodiment). Then, the connecting seat 101 can be moved to the right laterally to remove the lateral clamping limit plate 30, thus completing the disassembly. The disassembly is convenient.

[0030] During installation, simply insert the connecting seat 101 into the horizontal clamping limit plate 30, tighten the left connecting bolt 1, and simultaneously install the right elastic plate 60 and the right limit plate 40 on the right side and fix them with the right connecting bolt 2. The installation and disassembly are convenient. Since the connecting seat 101 is directly connected to the vertical mounting plate 10, it will not affect the expansion bolts or other connecting parts that connect the vertical mounting plate 10 to the wall 10.

[0031] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A simple installation structure of a laboratory exhaust device, comprising a vertical installation plate (20) fixed to a wall (10), characterized in that: The upper and lower parts of the middle of the vertical mounting plate (20) are fixed with horizontally extending plates (21). A vertical limiting strip (22) is fixed on the front wall of the vertical mounting plate (20) at the left side between the two horizontal fixing plates (21). The vertical plate part (102) of the connecting seat (101) of the fan (100) to be installed is located between the two horizontal fixing plates (21). The rear wall of the vertical plate part (102) is close to the front wall of the vertical mounting plate (20). The left side wall of the vertical plate part (102) is pressed against the right side wall of the vertical limiting strip (22). The middle part of the transverse pressing limit plate (30) is located between two horizontal fixed plates (21). The elastic sheet (31) fixed on the rear wall of the transverse pressing limit plate (30) presses against the front wall of the vertical plate part (102) of the connecting seat (101). The left part of the transverse pressing limit plate (30) is fixedly connected to the vertical mounting plate (20) by multiple left connecting bolts (1). The right part of the transverse pressing limit plate (30) is fixedly connected to the vertical mounting plate (20) by multiple right connecting bolts (2). The right limit plate (40) is inserted into the screw part of the right connecting bolt (2). The left side wall of the right limit plate (40) presses against the right side wall of the vertical plate part (102) of the connecting seat (101).

2. The simple installation structure of a laboratory exhaust device according to claim 1, characterized in that: Both horizontal fixing plates (21) have elastic pressing layers (211) fixed on their opposite walls. The elastic pressing layers (211) press against the outer wall of the horizontal connecting plate (103) fixed at the upper or lower part of the corresponding connecting seat (101).

3. The simple installation structure of a laboratory exhaust device according to claim 1, characterized in that: The top and bottom surfaces of the middle part of the transverse pressing and limiting plate (30) are both fixed with an inner elastic layer (3), and the outer wall of the inner elastic layer (3) presses against the inner wall of the corresponding horizontal connecting plate (103).

4. The simple installation structure of a laboratory exhaust device according to claim 1, characterized in that: A left elastic pressing plate (50) is pressed against the rear wall of the left part of the transverse pressing limiting plate (30). The rear wall of the left elastic pressing plate (50) is pressed against the front wall of the vertical mounting plate (20). The screw parts of multiple left connecting bolts (1) are inserted into the corresponding connecting through holes of the transverse pressing limiting plate (30) and the left elastic pressing plate (50) and screwed into the corresponding screwing through holes formed on the left side of the vertical mounting plate (20). The rear end face of the rotating part of the left connecting bolt (1) is pressed against the front wall of the transverse pressing limiting plate (30).

5. The simple installation structure of a laboratory exhaust device according to claim 1, characterized in that: A right elastic plate (60) is pressed against the rear wall of the right part of the transverse pressing limiting plate (30), a right limiting plate (40) is pressed against the rear wall of the right elastic plate (60), a limiting elastic layer (41) is fixed on the left side wall of the right limiting plate (40), the left side wall of the limiting elastic layer (41) is pressed against the right side wall of the vertical plate part (102) of the connecting seat (101), and the rear wall of the right limiting plate (40) is pressed against the front wall of the vertical mounting plate (20).

6. The simple installation structure of a laboratory exhaust device according to claim 5, characterized in that: The screw portion of the right connecting bolt (2) is inserted into the corresponding through hole on the right side of the transverse pressing limit plate (30), the corresponding through hole on the right side elastic plate (60), and the corresponding through hole on the right limit plate (40). The rear end of the screw portion of the right connecting bolt (2) is screwed into the corresponding screwed through hole on the right side of the vertical mounting plate (20). The rear end face of the rotating part of the right connecting bolt (2) presses against the front wall surface of the transverse pressing limit plate (30).

7. The simple installation structure of a laboratory exhaust device according to claim 2, characterized in that: The opposing walls at the right ends of the two elastic compression layers (211) are formed with oblique guide walls.

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