Guide pipe type ventilation fan

Abstract

The utility model relates to a guide pipe type ventilation fan which comprises a fan body, an air inlet pipe is arranged on the right side of the fan body, and an installation device is arranged on the right side of the fan body. According to the guide pipe type ventilation fan, the mounting rod, the U-shaped rod, a second mounting ring, a filter screen, a spring, a clamping plate, an elastic clamping plate and a clamping block are arranged, the elastic clamping plate is used for clamping the clamping block, the device can rotate the filter screen to mount the filter screen, the filter screen is used for filtering a wind body, and the clamping block is pressed by pressing the clamping plate; a second mounting ring and a filter screen can be taken out forwards by pulling a U-shaped rod forwards, the filter screen can be cleaned, a clamping block can be separated from an elastic clamping plate by rotating the filter screen, and the filter screen is replaced; by arranging an annular elastic plate, a limiting ring, a first sleeve, a second sleeve and a first mounting ring, the limiting ring extrudes the annular elastic plate by rotating the first sleeve, so that the inner wall of the annular elastic plate and the outer surface of the connecting pipe are extruded, and the connecting pipe is convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation fans, in particular to a duct-type ventilation fan. Background Art

[0002] The fresh air ventilator is designed and developed based on the principle that by supplying air on one side of a closed room and inducing air on the other side, a "fresh air flow field" will be formed in the room. It relies on mechanical air supply and induction to force the formation of a fresh air flow field in the system. It is a new type of environmentally friendly appliance that keeps the indoor air clean and fresh at all times.

[0003] A Chinese patent discloses a duct-type ventilation fan, with publication number CN216767820U, comprising a boost pipe, wherein both ends of the boost pipe are fixedly connected to an air inlet pipe, a support frame is fixedly connected between the boost pipe and the air inlet pipe, and an air outlet pipe is fixedly connected to the middle of one side of the boost pipe. The advantages of this utility model are: the boost pipe is driven by a motor to rotate to generate airflow, and the airflow flows out in the direction of the air outlet pipe, and a pressure difference is generated in the boost pipe, so that the air inlet pipes at both ends are replenished with air inward, achieving boosted ventilation. The two air inlet pipes replenish air to the boost pipe to balance the air pressure, which can increase the upper limit of the air boost at the end of the air outlet pipe. The boost pipe blades are supported by a support ring and a connecting rod to improve their stability during rotation. The boost pipe blades will generate a certain amount of vibration during rotation, and the vibration of the boost pipe blades can be effectively absorbed by the shock-absorbing pad, thereby improving the stability of the ventilation fan installation and reducing noise.

[0004] However, the device still has the following disadvantages: the device filters the air by installing a dust screen inside the air intake duct. However, cleaning the dust screen requires removing the duct on the air intake duct, making the device maintenance difficult. To address this problem, we proposed a duct-type ventilation fan. Utility Model Content

[0005] The purpose of the present utility model is to provide a duct-type ventilation fan to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a duct-type ventilation fan, comprising a fan body, an air inlet pipe being provided on the right side of the fan body, a mounting device being provided on the right side of the fan body, the mounting device comprising a mounting portion;

[0007] The mounting portion includes an annular elastic plate, a first sleeve, a second sleeve, and a first mounting ring. The first mounting ring is fixedly sleeved on the outer surface of the intake pipe. The first sleeve is threadedly sleeved on the outer surface of the second sleeve. The left end surface of the second sleeve is fixedly connected to the right end surface of the first mounting ring. The left end surface of the annular elastic plate is fixedly connected to the right end surface of the second sleeve.

[0008] A filter portion is provided on the right side of the fan body;

[0009] The filter part includes a mounting rod, a second mounting ring, a filter screen and a clamping plate. The filter screen is arranged inside the second mounting ring. A through hole is opened on the front of the air intake pipe. The back of the mounting rod is fixedly connected to the inner wall of the air intake pipe. A mounting hole is opened on the outer surface of the mounting rod. The outer surface of the clamping plate is hinged to the inner wall of the mounting hole.

[0010] A further improvement is that a connecting pipe is provided on the outer surface of the right end of the intake pipe. The inner wall of the annular elastic plate contacts the outer surface of the connecting pipe. The annular elastic plate facilitates connection of the connecting pipe.

[0011] A further improvement is that the mounting part also includes a limiting ring, the outer surface of the limiting ring is fixedly connected to the inner wall of the first sleeve, and the inner wall of the limiting ring is in extrusion contact with the outer surface of the annular elastic plate. By arranging the first sleeve, the second sleeve and the limiting ring, when the first sleeve is rotated, the limiting ring is pressed against the annular elastic plate, so that the inner wall of the annular elastic plate is extruded and connected with the outer surface of the connecting pipe.

[0012] A further improvement is that the filter part also includes a spring, a U-shaped rod, an elastic clip and a block, the outer surface of the filter is slidingly connected to the inner wall of the second mounting ring, the back of the U-shaped rod extends to the inside of the air intake pipe and is fixedly connected to the front of the second mounting ring. By setting the U-shaped rod, the second mounting ring and the filter, the filter is used to filter the wind.

[0013] A further improvement is that a slot is provided on the outer surface of the U-shaped rod, the outer surface of the card plate extends to the inside of the slot and is clamped with the inner wall of the slot, one end of the spring is fixedly connected to the inner wall of the mounting rod, and the other end of the spring is fixedly connected to the outer surface of the card plate. By arranging the mounting plate, the spring and the card plate, the elastic force of the spring is utilized to make the card plate clamp the U-shaped rod, and by pressing the card plate to rotate the card plate, the second mounting ring and the filter screen can be pulled forward, thereby facilitating cleaning of the filter screen.

[0014] A further improvement is that the left end face of the filter is fixedly connected to the right end face of the block, the elastic clip is sleeved on the outer surface of the block, the inner wall of the elastic clip is clamped with the inner wall of the block, and the outer surface of the elastic clip is fixedly connected to the inner wall of the second mounting ring. By arranging the elastic clip and the block, the elastic clip can be separated from the block by rotating the filter, which facilitates the disassembly and replacement of the filter.

[0015] A further improvement is that the outer surface of the fan body is fixedly connected to a shell, and the interior of the shell is filled with silent cotton, which is used to silence the wind body.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the duct-type ventilation fan, by arranging a mounting rod, a U-shaped rod, a second mounting ring, a filter screen, a spring, a clamping plate, an elastic clamping plate and a clamping block, uses the elastic clamping plate to clamp the clamping block, so that the device can install the filter screen by rotating the filter screen, and use the filter screen to filter the wind body. By pressing the clamping plate, the U-shaped rod can be pulled forward to pull the second mounting ring and the filter screen forward to remove the filter screen, and the filter screen can be cleaned by rotating the filter screen. The clamping block can be separated from the elastic clamping plate to replace the filter screen; by arranging an annular elastic plate, a limiting ring, a first sleeve, a second sleeve and a first mounting ring, by rotating the first sleeve, the limiting ring squeezes the annular elastic plate, so that the inner wall of the annular elastic plate is squeezed with the outer surface of the connecting pipe, which is convenient for installing the connecting pipe; by arranging silent cotton and a shell, the silent cotton is used to reduce the noise of the wind flow. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a left side sectional view of the three-dimensional structure of the utility model;

[0019] Figure 3 This is a partial cross-sectional view of the three-dimensional structure of the installation device of the utility model;

[0020] Figure 4 This is a partial cross-sectional view of the three-dimensional structure of the filter part of the utility model;

[0021] Figure 5 for Figure 3 A magnified view of the structure at center A;

[0022] Figure 6 for Figure 3 Enlarged view of the structure at point B in the middle.

[0023] In the figure: 1 fan body, 2 air intake pipe, 3 mounting device, 4 connecting pipe, 5 silent cotton, 6 shell, 31 mounting part, 32 filter part, 311 annular elastic plate, 312 limiting ring, 313 first sleeve, 314 second sleeve, 315 first mounting ring, 321 mounting rod, 322 U-shaped rod, 323 second mounting ring, 324 filter screen, 325 spring, 326 clamping plate, 327 elastic clamping plate, 328 clamping block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-6 The utility model provides a technical solution: a duct-type ventilation fan, comprising a fan body 1, a shell 6 fixedly connected to the outer surface of the fan body 1, and a silent cotton 5 filled inside the shell 6. By arranging the silent cotton 5 and the shell 6, the silent cotton 5 is used to reduce the noise of the air flow;

[0026] An air inlet pipe 2 is provided on the right side of the fan body 1. A mounting device 3 is provided on the right side of the fan body 1. The mounting device 3 includes a mounting portion 31.

[0027] The mounting portion 31 includes an annular elastic plate 311, a first sleeve 313, a second sleeve 314, and a first mounting ring 315. The first mounting ring 315 is fixedly sleeved on the outer surface of the intake pipe 2. The first sleeve 313 is threadedly sleeved on the outer surface of the second sleeve 314. The left end surface of the second sleeve 314 is fixedly connected to the right end surface of the first mounting ring 315. The left end surface of the annular elastic plate 311 is fixedly connected to the right end surface of the second sleeve 314.

[0028] The mounting portion 31 further includes a limiting ring 312 , the outer surface of which is fixedly connected to the inner wall of the first sleeve 313 , and the inner wall of the limiting ring 312 is in compression contact with the outer surface of the annular elastic plate 311 ;

[0029] The connecting pipe 4 is slidably sleeved on the outer surface of the right end of the intake pipe 2. The inner wall of the annular elastic plate 311 contacts the outer surface of the connecting pipe 4. By arranging the annular elastic plate 311, the limiting ring 312, the first sleeve 313, the second sleeve 314 and the first mounting ring 315, the limiting ring 312 is rotated to squeeze the annular elastic plate 311, so that the inner wall of the annular elastic plate 311 is pressed against the outer surface of the connecting pipe 4, thereby facilitating the installation of the connecting pipe 4.

[0030] A filter unit 32 is provided on the right side of the fan body 1;

[0031] The filter unit 32 includes a mounting rod 321, a second mounting ring 323, a filter screen 324, and a clamping plate 326. The filter screen 324 is disposed within the second mounting ring 323. A through hole is defined on the front of the intake pipe 2. The back of the mounting rod 321 is fixedly connected to the inner wall of the intake pipe 2. A mounting hole is defined on the outer surface of the mounting rod 321. The outer surface of the clamping plate 326 is hingedly connected to the inner wall of the mounting hole. The filter unit 32 also includes a spring 325, a U-shaped rod 322, an elastic clamping plate 327, and a clamping block 328.

[0032] The outer surface of the filter screen 324 is slidably connected to the inner wall of the second mounting ring 323. The back of the U-shaped rod 322 extends into the interior of the air intake pipe 2 and is fixedly connected to the front of the second mounting ring 323. The left end surface of the filter screen 324 is fixedly connected to the right end surface of the clamping block 328. The elastic clamping plate 327 is sleeved on the outer surface of the clamping block 328. The inner wall of the elastic clamping plate 327 is clamped to the inner wall of the clamping block 328. The outer surface of the elastic clamping plate 327 is fixedly connected to the inner wall of the second mounting ring 323.

[0033] When the filter screen 324 is closed, the filter screen 324 can be easily removed by pressing the filter plate 326, and the filter screen 324 can be easily removed by pressing the filter plate 326.

[0034] When cleaning the filter 324, press the card plate 326 so that the card plate 326 no longer blocks the U-shaped rod 322, pull the U-shaped rod 322 forward, and the U-shaped rod 322 drives the second mounting ring 323 and the filter 324 to be pulled forward and out of the air intake pipe 2, so that the outer surface of the filter 324 can be cleaned, and the filter 324 can be rotated, and the filter 324 drives the card block 328 to rotate, so that the card block 328 is separated from the elastic card plate 327, and the filter 324 can be replaced.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A duct-type ventilation fan, comprising a fan body (1), characterized in that: An air inlet pipe (2) is provided on the right side of the fan body (1), and a mounting device (3) is provided on the right side of the fan body (1), wherein the mounting device (3) includes a mounting portion (31); The mounting portion (31) comprises an annular elastic plate (311), a first sleeve (313), a second sleeve (314) and a first mounting ring (315); the first mounting ring (315) is fixedly sleeved on the outer surface of the intake pipe (2); the first sleeve (313) is threadedly sleeved on the outer surface of the second sleeve (314); the left end surface of the second sleeve (314) is fixedly connected to the right end surface of the first mounting ring (315); and the left end surface of the annular elastic plate (311) is fixedly connected to the right end surface of the second sleeve (314); A filter portion (32) is provided on the right side of the fan body (1); The filter portion (32) comprises a mounting rod (321), a second mounting ring (323), a filter screen (324) and a clamping plate (326); the filter screen (324) is arranged inside the second mounting ring (323); a through hole is provided on the front of the air intake pipe (2); the back of the mounting rod (321) is fixedly connected to the inner wall of the air intake pipe (2); a mounting hole is provided on the outer surface of the mounting rod (321); and the outer surface of the clamping plate (326) is hinged to the inner wall of the mounting hole.

2. The duct-type ventilation fan according to claim 1, characterized in that: A connecting pipe (4) is provided on the outer surface of the right end of the air inlet pipe (2) in a sliding sleeve, and the inner wall of the annular elastic plate (311) is in contact with the outer surface of the connecting pipe (4).

3. The duct-type ventilation fan according to claim 2, characterized in that: The mounting portion (31) further comprises a limiting ring (312), the outer surface of the limiting ring (312) being fixedly connected to the inner wall of the first sleeve (313), and the inner wall of the limiting ring (312) being in compression contact with the outer surface of the annular elastic plate (311).

4. The duct-type ventilation fan according to claim 1, characterized in that: The filter portion (32) further comprises a spring (325), a U-shaped rod (322), an elastic clamping plate (327) and a clamping block (328); the outer surface of the filter screen (324) is slidably connected to the inner wall of the second mounting ring (323); the back surface of the U-shaped rod (322) extends into the interior of the air intake pipe (2) and is fixedly connected to the front surface of the second mounting ring (323).

5. The duct-type ventilation fan according to claim 4, characterized in that: A slot is formed on the outer surface of the U-shaped rod (322), and the outer surface of the clamping plate (326) extends into the slot and is clamped to the inner wall of the slot. One end of the spring (325) is fixedly connected to the inner wall of the mounting rod (321), and the other end of the spring (325) is fixedly connected to the outer surface of the clamping plate (326).

6. The duct-type ventilation fan according to claim 4, characterized in that: The left end surface of the filter screen (324) is fixedly connected to the right end surface of the clamping block (328); the elastic clamping plate (327) is sleeved on the outer surface of the clamping block (328); the inner wall of the elastic clamping plate (327) is clamped to the inner wall of the clamping block (328); and the outer surface of the elastic clamping plate (327) is fixedly connected to the inner wall of the second mounting ring (323).

7. The duct-type ventilation fan according to claim 4, characterized in that: The outer surface of the fan body (1) is fixedly connected to a shell (6), and the interior of the shell (6) is filled with silent cotton (5).

Images