Industrial local ventilator with silencing device

Abstract

The utility model discloses an industrial local ventilator silencing device which comprises a ventilation pipe, fan blades are arranged in the ventilation pipe, two movable grooves are fixedly connected to the upper surface of the ventilation pipe, a first sliding groove is formed in the side surface of the ventilation pipe, and a second sliding groove is formed in the side surface of the ventilation pipe. Fixing seats are fixedly connected to the two sides of the ventilation pipe, motors are fixedly connected to the inner walls of the bottoms of the fixing seats, threaded columns are fixedly connected to the output ends of the motors, sliding blocks are in threaded connection with the outer surfaces of the threaded columns, second sliding grooves are formed in the outer surfaces of the fixing seats, and connecting blocks are fixedly connected to the side surfaces of the sliding blocks. The mounting frames are arranged on the two sides of the ventilation pipe, and the two mounting frames can ascend and descend along with the sliding blocks, so that the silencing plates and the silencing cotton in the mounting frames can be replaced, and the situation that the silencing plates and the silencing cotton are blocked by dust and the overall silencing effect is affected when the ventilation pipe is used for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilator silencing, in particular to an industrial local ventilator with a silencing device. Background Art

[0002] Industrial ventilator is an important equipment, which relies on input mechanical energy to increase gas pressure and discharge gas. This kind of ventilator is widely used in various industrial fields, such as chemical industry, steel, electricity, cement, etc. It is one of the indispensable important equipment in modern industrial production. Its main functions include ventilation, temperature reduction, smoke emission, etc. In the industrial production process, the ventilator can discharge the exhaust gas and introduce fresh air into the room to ensure the indoor air quality and reduce the temperature, thereby ensuring the smooth progress of production.

[0003] The local fan silencer device disclosed in the Chinese utility model patent application disclosure specification CN202056068U has a noise reduction effect more than twice that of a traditional silencer, with an average noise reduction of 25 to 35 decibels, and keeps the air volume loss of the fan within an allowable range. The local fan silencer device of the present invention is mainly used to reduce noise, improve the working environment, and ensure safe production. However, the existing industrial local fan silencer device has a relatively simple structure. After long-term use, the silencer plate and the silencer cotton are easily blocked by dust, affecting the overall silencer effect, and it is inconvenient to replace them. Utility Model Content

[0004] The utility model aims to provide an industrial local ventilator with a silencer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an industrial local ventilator with a silencing device, comprising:

[0006] A ventilation pipe, wherein a fan blade is arranged inside the ventilation pipe, a movable groove is fixedly connected to the upper surface of the ventilation pipe, the number of the movable grooves is two, a first sliding groove is arranged on the side surface of the ventilation pipe, a fixing seat is fixedly connected to both sides of the ventilation pipe, a motor is fixedly connected to the bottom inner wall of the fixing seat, a threaded column is fixedly connected to the output end of the motor, and a sliding block is threadedly connected to the outer surface of the threaded column;

[0007] The outer surface of the fixed seat is provided with a second sliding groove, the side surface of the sliding block is fixedly connected with a connecting block, the outer surface of the connecting block is slidably connected to the first sliding groove, the outer surface of the sliding block is slidably connected to the second sliding groove, the side surface of the connecting block is fixedly connected with a mounting frame, the mounting frame is provided with two groups, the outer surface of the mounting frame is slidably connected to the movable groove, and a sound-absorbing plate is provided inside the mounting frame.

[0008] Preferably, mounting grooves are provided on the upper and lower sides of the mounting frame to facilitate positioning of the silencer plate.

[0009] Preferably, a spring is fixedly connected to the bottom inner wall of the mounting groove, and the spring can drive the movable plate to descend, so that the lower side of the silencer plate is first inserted into the bottom mounting groove, and then the top is inserted into the upper mounting groove. The elasticity of the spring will lift the silencer plate so that its upper and lower sides are respectively stuck in the mounting grooves.

[0010] Preferably, a movable plate is fixedly connected to the top end of the spring, and a rotating block is rotatably connected to the inside of the mounting frame.

[0011] Preferably, the outer surface of the rotating block is fixedly connected to a limiting block, which can limit the rotating block to prevent the rotating block from being separated from the mounting frame, and a threaded block is fixedly connected to a side of the limiting block away from the rotating block.

[0012] Preferably, a thread groove is provided on the upper surface of the muffler plate, and the outer surface of the thread block is threadably connected to the thread groove, so as to facilitate quick replacement and installation of the thread groove.

[0013] Preferably, the side surface of the sound-absorbing plate is provided with sound-absorbing cotton, and the upper surface of the mounting frame is fixedly connected with a connecting handle, which can connect the two sets of mounting frames and replace the sound-absorbing plate and sound-absorbing cotton inside them at the same time.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The industrial local ventilator with a silencer device is provided with mounting frames on both sides of the ventilation pipe. The two mounting frames can be raised and lowered together with the sliding block, so that the silencer plate and the silencer cotton inside the mounting frames can be replaced, thereby preventing the silencer plate and the silencer cotton from being blocked by dust during long-term use of the ventilation pipe, thereby affecting the overall silencer effect;

[0016] (2) This type of industrial local ventilator with a silencer device is convenient for quickly limiting the silencer plate and the silencer cotton by arranging mounting grooves on the upper and lower sides of the mounting frame, and then the silencer plate can be quickly installed and replaced using a threaded block, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 This is a schematic diagram of the internal structure of the fixing seat of the utility model;

[0020] Figure 4 It is a schematic diagram of the connection structure between the mounting frame and the silencer plate of the utility model.

[0021] In the figure: 1. ventilation duct; 2. fan blades; 3. movable groove; 4. first sliding groove; 5. fixed seat; 6. motor; 7. threaded column; 8. sliding block; 9. connecting block; 10. mounting frame; 11. silencer plate; 12. mounting groove; 13. spring; 14. movable plate; 15. rotating block; 16. limiting block; 17. threaded block; 18. threaded groove; 19. silencer cotton; 20. connecting handle; 21. second sliding groove. DETAILED DESCRIPTION

[0022] 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. 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.

[0023] See also Figure 1-4 The utility model provides an embodiment: an industrial local fan with a silencer, comprising a ventilation pipe 1, a fan blade 2 is arranged inside the ventilation pipe 1, a movable groove 3 is fixedly connected to the upper surface of the ventilation pipe 1, and the number of the movable grooves 3 is two, which is convenient for moving the mounting frame 10 as a whole, and a first sliding groove 4 is arranged on the side surface of the ventilation pipe 1.

[0024] The ventilation pipe 1 is fixedly connected with a fixing seat 5 on both sides, the bottom inner wall of the fixing seat 5 is fixedly connected with a motor 6, the output end of the motor 6 is fixedly connected with a threaded column 7, the outer surface of the threaded column 7 is threadedly connected with a sliding block 8, and the rotation of the threaded column 7 can drive the sliding block 8 to move up and down, thereby driving the connecting block 9 and the mounting frame 10 to rise and fall as a whole.

[0025] The outer surface of the fixed seat 5 is provided with a second sliding groove 21, and the side surface of the sliding block 8 is fixedly connected with a connecting block 9, the outer surface of the connecting block 9 is slidably connected to the first sliding groove 4, the connecting block 9 can drive the mounting frame 10 to move up and down, and the outer surface of the sliding block 8 is slidably connected to the second sliding groove 21.

[0026] The side surface of the connecting block 9 is fixedly connected with a mounting frame 10. There are two groups of mounting frames 10, which are respectively located on both sides of the ventilation pipe 1. The up and down movement of the two groups of mounting frames 10 is helpful for installing the silencer plate 11 and the silencer cotton 19. The outer surface of the mounting frame 10 is slidably connected with the movable groove 3, which is convenient for controlling the overall lifting of the mounting frame 10 and replacing the silencer plate 11 and the silencer cotton 19 inside it. The inside of the mounting frame 10 is provided with a silencer plate 11, which is convenient for silencing the noise generated when the ventilation pipe 1 is working.

[0027] Mounting grooves 12 are provided on the upper and lower sides of the mounting frame 10 to facilitate limiting the silencer plate 11. A spring 13 is fixedly connected to the bottom inner wall of the mounting groove 12. The spring 13 can drive the movable plate 14 to descend, so that the lower side of the silencer plate 11 is first inserted into the bottom mounting groove 12, and then the top is inserted into the upper mounting groove 12. The elasticity of the spring 13 will lift the silencer plate 11 so that the upper and lower sides are respectively inserted into the mounting groove 12, and the top of the spring 13 is fixedly connected to the movable plate 14.

[0028] The mounting frame 10 is internally rotatably connected with a rotating block 15, and the outer surface of the rotating block 15 is fixedly connected with a limiting block 16. The limiting block 16 can limit the rotating block 15 to prevent the rotating block 15 from being separated from the mounting frame 10. The limiting block 16 is fixedly connected with a threaded block 17 on a side away from the rotating block 15. The upper surface of the silencer plate 11 is provided with a threaded groove 18, and the outer surface of the threaded block 17 is threadedly connected to the threaded groove 18, so as to facilitate the quick replacement and installation of the threaded groove 18. The side surface of the silencer plate 11 is provided with a sound-absorbing cotton 19, and the upper surface of the mounting frame 10 is fixedly connected with a connecting handle 20. The connecting handle 20 can connect the two sets of mounting frames 10 and replace the sound-absorbing plate 11 and the sound-absorbing cotton 19 inside it at the same time.

[0029] When the embodiment of the present application is in use: when it is necessary to replace the silencer device inside the ventilation duct 1, the motor 6 is started to drive the threaded column 7 to rotate, driving the sliding block 8, the connecting block 9, and the mounting frame 10 to rise as a whole, so that the mounting frames 10 on both sides of the ventilation duct 1 are raised together, and then the rotating block 15 is rotated to disengage the threaded block 17 from the threaded groove 18, thereby replacing the threaded groove 18 and the silencer cotton 19.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An industrial local ventilator with a silencer, characterized in that: include: A ventilation pipe (1), wherein a fan blade (2) is arranged inside the ventilation pipe (1), a movable groove (3) is fixedly connected to the upper surface of the ventilation pipe (1), the number of the movable grooves (3) is two, a first sliding groove (4) is arranged on the side surface of the ventilation pipe (1), a fixing seat (5) is fixedly connected to both sides of the ventilation pipe (1), a motor (6) is fixedly connected to the bottom inner wall of the fixing seat (5), a threaded column (7) is fixedly connected to the output end of the motor (6), and a sliding block (8) is threadedly connected to the outer surface of the threaded column (7); The outer surface of the fixed seat (5) is provided with a second sliding groove (21); the side surface of the sliding block (8) is fixedly connected to a connecting block (9); the outer surface of the connecting block (9) is slidably connected to the first sliding groove (4); the outer surface of the sliding block (8) is slidably connected to the second sliding groove (21); the side surface of the connecting block (9) is fixedly connected to a mounting frame (10); the mounting frame (10) is provided with two groups; the outer surface of the mounting frame (10) is slidably connected to the movable groove (3); and a sound-absorbing plate (11) is provided inside the mounting frame (10).

2. An industrial local ventilator with a silencer according to claim 1, characterized in that: The upper and lower sides of the mounting frame (10) are provided with mounting grooves (12).

3. An industrial local ventilator with a silencer according to claim 2, characterized in that: A spring (13) is fixedly connected to the bottom inner wall of the installation groove (12).

4. An industrial local ventilator with a muffler according to claim 3, characterized in that: The top end of the spring (13) is fixedly connected to a movable plate (14), and the interior of the mounting frame (10) is rotatably connected to a rotating block (15).

5. An industrial local ventilator with a muffler according to claim 4, characterized in that: The outer surface of the rotating block (15) is fixedly connected to a limiting block (16), and a surface of the limiting block (16) away from the rotating block (15) is fixedly connected to a threaded block (17).

6. An industrial local ventilator with a muffler according to claim 5, characterized in that: The upper surface of the muffler plate (11) is provided with a thread groove (18), and the outer surface of the thread block (17) is threadedly connected to the thread groove (18).

7. An industrial local ventilator with a muffler according to claim 6, characterized in that: The side surface of the sound-absorbing plate (11) is provided with sound-absorbing cotton (19), and the upper surface of the mounting frame (10) is fixedly connected with a connecting handle (20).

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