Safety protection device of exhaust fan

Abstract

The utility model discloses an exhaust fan safety protection device, and relates to the technical field of exhaust fan safety protection. Comprising a ventilation shell, a rotating rod and a mounting seat, a mounting plate is fixedly arranged in the ventilation shell, a filter screen plate is movably arranged on one side of the mounting plate through a first bolt, and the rotating rod is rotationally connected to the inner wall of the filter screen plate. By arranging the mounting base, the mounting block and the second bolt, the second bolt is displaced by screwing the second bolt, when one end of the second bolt is separated from the limiting hole in the mounting block, limiting of the mounting block can be relieved, then the brush rod can be detached from the rotating rod, and therefore the detachable function of the brush rod is achieved; the brush rod can be replaced conveniently, and when a brush on the brush rod is abraded, a worker can detach the seriously abraded brush rod and then replace the brush rod with a new brush rod.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust fan safety protection, in particular to an exhaust fan safety protection device. Background Art

[0002] Exhaust fan is a kind of air conditioning appliance that uses a motor to drive the fan blades to rotate and drive the air flow to exchange indoor and outdoor air. The purpose of exhaust is to remove indoor dirty air and adjust the temperature and humidity. It is widely used in homes and public places.

[0003] Chinese utility model patent CN219215008U discloses a ventilation mechanism for rail transit, including a ventilation shell, a cleaning mechanism installed inside the ventilation shell, an exhaust fan installed on the left side of the ventilation shell; the cleaning mechanism includes a micro motor, a fixing frame fixedly installed outside the micro motor, the fixing frame is fixedly connected to the inner wall of the ventilation shell, a rotating shaft is fixedly connected to the output end of the micro motor, a connecting seat is fixedly connected to the right side of the rotating shaft, and a square groove is opened on the right side of the connecting seat. The ventilation mechanism for rail transit is provided with a dust cleaning mechanism. When the exhaust fan is running, the micro motor is started to drive the connecting seat to rotate, thereby driving the connecting block connected to the connecting seat to drive the rotating rod to rotate, so that the two rotating rods rotate to make the brush rotate to clean the dust adhering to the filter net. Under the action of gravity, the dust enters the collection box from the ash inlet and is collected, thereby preventing the dust from adhering to the surface of the filter net.

[0004] In order to clean the filter, the ventilation mechanism is equipped with a micro motor, a rotating rod, a rotating rod and a brush, and the rotating rod and the brush are installed together. However, the rotating rods in the ventilation mechanism are fixedly installed, and there is no function of disassembling the brush, which makes it inconvenient to replace the brush. After a long period of cleaning work, the brush will be worn or more impurities will adhere to the brush. If it is not replaced in time, it will affect the subsequent cleaning effect of the filter. Utility Model Content

[0005] The utility model provides a safety protection device for an exhaust fan to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust fan safety protection device, comprising a ventilation shell, a rotating rod and a mounting seat, a mounting plate is fixedly arranged inside the ventilation shell, a filter screen plate is movably arranged on one side of the mounting plate through a first bolt, the inner wall of the filter screen plate is rotatably connected to the rotating rod, the top and bottom of one end of the rotating rod are fixedly arranged with a mounting seat, a mounting groove is opened on the inner side of the mounting seat, and a mounting block is movably arranged on the inner wall of the mounting groove;

[0007] A brush rod is fixedly provided at one end of the mounting block, one side of the brush rod is fitted with one side of the filter screen, a limiting hole is provided on the inner side of the mounting block, and a second bolt is movably provided on the inner wall of the limiting hole, a threaded hole matched with the second bolt is provided on one side of the interior of the mounting seat, and the connection relationship between the second bolt and the mounting seat is a threaded connection.

[0008] Furthermore, a square block is fixedly provided on the other end of the rotating rod, a connecting seat is clamped on one end of the square block, a square groove matching the square block is opened on the inner side of the connecting seat, a rotating shaft is fixedly provided on one side of the connecting seat, and one end of the rotating shaft is fixedly connected to the output shaft of the motor.

[0009] Furthermore, the connection relationship between the second bolt and the mounting block is a movable plug-in.

[0010] Furthermore, a discharge port is provided on one side of the bottom of the ventilation shell, and the discharge port is inclined. A support box is provided below the discharge port, and a collection box is movably provided inside the support box.

[0011] Furthermore, one side of the collection box is movably connected to the support box via a third bolt, a threaded hole matching the third bolt is provided on one side of the support box, and the connection between the third bolt and the support box is a threaded connection.

[0012] Furthermore, an exhaust fan is arranged inside the ventilation shell.

[0013] Compared with the prior art, the utility model provides a safety protection device for an exhaust fan, which has the following beneficial effects:

[0014] 1. The exhaust fan safety protection device is provided with a mounting seat, a mounting block and a second bolt. The second bolt is displaced by twisting the second bolt. When one end of the second bolt is out of the limiting hole on the mounting block, the limiting of the mounting block can be released, and then the brush rod can be removed from the rotating rod, thereby realizing the detachable function of the brush rod, thereby facilitating the replacement of the brush rod. When the brush on the brush rod is worn, the staff can remove the severely worn brush rod and then replace it with a new brush rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural front view of the utility model;

[0017] Figure 3 This is an enlarged structural diagram of part A of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of part B of the utility model.

[0019] In the figure: 1. ventilation shell; 101. mounting plate; 102. first bolt; 103. filter screen; 2. rotating rod; 201. square block; 202. connecting seat; 203. rotating shaft; 204. motor; 3. mounting seat; 301. mounting block; 302. brush rod; 303. second bolt; 4. exhaust port; 5. supporting box; 501. collecting box; 6. third bolt; 7. exhaust fan. DETAILED DESCRIPTION

[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model discloses a safety protection device for an exhaust fan, comprising a ventilation housing 1, a rotating rod 2 and a mounting seat 3, wherein a mounting plate 101 is fixedly arranged inside the ventilation housing 1, a filter screen plate 103 is movably arranged on one side of the mounting plate 101 through a first bolt 102, the inner wall of the filter screen plate 103 is rotatably connected with the rotating rod 2, the top and bottom of one end of the rotating rod 2 are fixedly arranged with the mounting seat 3, a mounting groove is opened on the inner side of the mounting seat 3, and a mounting block 301 is movably arranged on the inner wall of the mounting groove;

[0022] A brush rod 302 is fixedly provided at one end of the mounting block 301, and one side of the brush rod 302 is fitted with one side of the filter screen plate 103. A limiting hole is provided on the inner side of the mounting block 301, and a second bolt 303 is movably provided on the inner wall of the limiting hole. A threaded hole matched with the second bolt 303 is provided on one side of the interior of the mounting seat 3, and the connection relationship between the second bolt 303 and the mounting seat 3 is a threaded connection.

[0023] Specifically, a square block 201 is fixedly provided on the other end of the rotating rod 2, a connecting seat 202 is clamped on one end of the square block 201, a square groove matching the square block 201 is opened on the inner side of the connecting seat 202, a rotating shaft 203 is fixedly provided on one side of the connecting seat 202, and one end of the rotating shaft 203 is fixedly connected to the output shaft of the motor 204.

[0024] In this embodiment, by setting up a motor 204, the motor 204 drives the brush rod 302 on the rotating rod 2 to rotate through the rotating shaft 203. The rotating brush rod 302 can clean the surface of the filter plate 103. The brush rod 302 will sweep away the impurities accumulated on the surface of the filter plate 103, so that the filter plate 103 maintains a good ventilation effect.

[0025] Specifically, the connection relationship between the second bolt 303 and the mounting block 301 is a movable plug-in connection.

[0026] In this embodiment, a second bolt 303 is provided and the second bolt 303 is displaced by screwing it. When one end of the second bolt 303 is inserted into the limiting hole on the mounting block 301, the mounting block 301 can be limited, thereby achieving the installation of the brush rod 302.

[0027] Specifically, a discharge port 4 is provided at one side of the bottom of the ventilation shell 1 , and the discharge port 4 is inclined. A support box 5 is provided below the discharge port 4 , and a collection box 501 is movably provided inside the support box 5 .

[0028] In this embodiment, by setting up the collection box 501, the cleaned impurities fall into the interior of the collection box 501 through the discharge port 4. The collection box 501 collects the impurities. When the collection is completed, the collection box 501 can be pulled out.

[0029] Specifically, one side of the collection box 501 is movably connected to the support box 5 through the third bolt 6, and a threaded hole matched with the third bolt 6 is opened on one side of the support box 5, and the connection relationship between the third bolt 6 and the support box 5 is a threaded connection.

[0030] In this embodiment, the third bolt 6 is provided to lock the collection box 501 to prevent the collection box 501 from accidentally moving, so that the collection box 501 is stably placed inside the support box 5 .

[0031] Specifically, an exhaust fan 7 is disposed inside the ventilation housing 1 .

[0032] In this embodiment, by setting and turning on the exhaust fan 7, a certain space can be effectively ventilated, that is, air circulation can be achieved, which helps to improve indoor air quality, reduce odor and moisture, and maintain the comfort of the indoor environment.

[0033] When in use, the filter screen 103 can effectively filter out most of the impurities sucked in by the exhaust fan 7 during operation, reducing the damage caused by the impurities to the exhaust fan 7, thereby extending the service life of the exhaust fan 7 and playing a role in safety protection for the exhaust fan 7;

[0034] When cleaning the filter screen 103, the motor 204 drives the brush rod 302 on the rotating rod 2 to rotate through the rotating shaft 203, and the rotating brush rod 302 can clean the surface of the filter screen 103. The brush rod 302 will sweep away the impurities on the surface of the filter screen 103, and the cleaned impurities will fall into the inside of the collection box 501 through the discharge port 4;

[0035] When removing the brush rod 302, the second bolt 303 is displaced by screwing the second bolt 303. When one end of the second bolt 303 is out of the limiting hole on the mounting block 301, the limiting of the mounting block 301 can be released, and then the brush rod 302 can be removed from the rotating rod 2.

[0036] When installing the brush rod 302, insert the mounting block 301 on the brush rod 302 into the mounting groove on the mounting seat 3, and then rotate the second bolt 303 to displace the second bolt 303. When one end of the second bolt 303 is inserted into the limiting hole on the mounting block 301, the mounting block 301 can be limited, thereby realizing the installation of the brush rod 302.

[0037] To summarize, the exhaust fan safety protection device, by providing a mounting seat 3, a mounting block 301 and a second bolt 303, displaces the second bolt 303 by screwing the second bolt 303. When one end of the second bolt 303 is disengaged from the limiting hole on the mounting block 301, the limiting of the mounting block 301 can be released, and then the brush rod 302 can be removed from the rotating rod 2, thereby realizing the detachable function of the brush rod 302, thereby facilitating the replacement of the brush rod 302. When the brush on the brush rod 302 is worn, the staff can remove the severely worn brush rod 302 and then replace it with a new brush rod 302.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for an exhaust fan, comprising a ventilation housing (1), a rotating rod (2) and a mounting seat (3), characterized in that: A mounting plate (101) is fixedly provided inside the ventilation housing (1), a filter screen plate (103) is movably provided on one side of the mounting plate (101) via a first bolt (102), an inner wall of the filter screen plate (103) is rotatably connected to a rotating rod (2), a mounting seat (3) is fixedly provided at the top and bottom of one end of the rotating rod (2), a mounting groove is provided on the inner side of the mounting seat (3), and a mounting block (301) is movably provided on the inner wall of the mounting groove; A brush rod (302) is fixedly provided at one end of the mounting block (301), one side of the brush rod (302) is in contact with one side of the filter screen plate (103), a limiting hole is provided on the inner side of the mounting block (301), and a second bolt (303) is movably provided on the inner wall of the limiting hole, a threaded hole matching the second bolt (303) is provided on one side of the interior of the mounting seat (3), and the connection relationship between the second bolt (303) and the mounting seat (3) is a threaded connection.

2. The exhaust fan safety protection device according to claim 1, characterized in that: A square block (201) is fixedly provided at the other end of the rotating rod (2), a connecting seat (202) is clamped at one end of the square block (201), a square groove matching the square block (201) is provided on the inner side of the connecting seat (202), a rotating shaft (203) is fixedly provided at one side of the connecting seat (202), and one end of the rotating shaft (203) is fixedly connected to the output shaft of the motor (204).

3. The exhaust fan safety protection device according to claim 1, characterized in that: The connection relationship between the second bolt (303) and the mounting block (301) is a movable plug-in connection.

4. The exhaust fan safety protection device according to claim 1, characterized in that: A discharge port (4) is provided on one side of the bottom of the ventilation housing (1); the discharge port (4) is inclined; a support box (5) is provided below the discharge port (4); a collection box (501) is movably provided inside the support box (5).

5. The exhaust fan safety protection device according to claim 4, characterized in that: One side of the collection box (501) is movably connected to the support box (5) via a third bolt (6); a threaded hole matching the third bolt (6) is provided on one side of the support box (5); and the connection between the third bolt (6) and the support box (5) is a threaded connection.

6. The exhaust fan safety protection device according to claim 1, characterized in that: An exhaust fan (7) is arranged inside the ventilation housing (1).

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