Noise reduction mechanism of special fan

Abstract

The utility model discloses a special draught fan noise reduction mechanism which comprises a special draught fan body, a round pipe is inserted into an air outlet pipe of the special draught fan body, a first connecting ring is fixedly connected to the outer side of the air outlet pipe of the special draught fan body, a round pipe is inserted into the air outlet pipe of the special draught fan body, and a second connecting ring is fixedly connected to the outer side of the round pipe of the special draught fan body. A first connecting ring is fixedly connected to the outer side of the round pipe, a second connecting ring is fixedly connected to the outer side of the round pipe, a plurality of connecting blocks are evenly and fixedly connected to the circumferential outer wall of the first connecting ring, clamping grooves are formed in one sides of the connecting blocks, a plurality of L-shaped clamping blocks are evenly and fixedly connected to the circumferential outer wall of the second connecting ring, and the L-shaped clamping blocks are connected with the clamping grooves in a clamped mode. The noise reduction structure can be conveniently installed, time is saved, installation efficiency is improved, the noise reduction structure can be installed more stably, the installation stability of the noise reduction structure is improved, it can be guaranteed that the shell is in a horizontal state, and the influence of gravity on the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fan noise reduction mechanisms, in particular to a special fan noise reduction mechanism. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine, and fan is the customary abbreviation for gas compression and gas delivery machinery in China.

[0003] Existing fan noise reduction structures are mostly fixed by flanges and screws and nuts during installation. Such installation requires screwing multiple screws, which is laborious and leads to low installation efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a special fan noise reduction mechanism.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A special fan noise reduction mechanism comprises a special fan body, a round tube is inserted in the air outlet pipe of the special fan body, a first connecting ring is fixedly connected to the outer side of the air outlet pipe of the special fan body, a round tube is inserted in the air outlet pipe of the special duct machine body, a second connecting ring is fixedly connected to the outer side of the round tube, a plurality of connecting blocks are evenly fixedly connected to the circumferential outer wall of the first connecting ring, a plurality of connecting blocks are provided with a card slot on one side, a plurality of L-shaped card blocks are evenly fixedly connected to the circumferential outer wall of the second connecting ring, and the L-shaped card blocks are card-engaged with the card slot, a locking assembly for fixing the L-shaped card block is provided on the outer side of the air outlet pipe of the special style hanging machine body, one end of the round tube is fixedly connected to a shell, a noise reduction assembly for silencing wind sound is provided in the shell, and a support assembly is provided at the bottom of the shell.

[0007] As a further solution of the present invention, the noise reduction component includes sound-absorbing cotton, which is filled in the shell. A plurality of porous tubes are fixedly connected in the shell, and both ends of the porous tubes pass through the shell. The sound-absorbing cotton wraps the plurality of porous tubes.

[0008] As a further solution of the present invention, a plurality of evenly distributed baffles are fixedly connected to the plurality of porous tubes, and gaps are provided between the baffles and the porous tubes.

[0009] As a further solution of the present invention, the locking assembly includes a fixing ring, which is fixedly connected to the outside of the air outlet duct of the special fan body. A circular ring is provided on the outside of the air outlet duct of the special fan body. A spring is sleeved on the outside of the air outlet duct of the special fan body, and the two ends of the spring are respectively fixed to the circular ring and the fixing ring. One side of the circular ring is fixedly connected to multiple round rods, and the multiple round rods respectively pass through multiple connecting blocks and extend into the card slot. A socket is provided on one side of the L-shaped card block, and the round rod is plugged into the socket.

[0010] As a further solution of the present invention, a plurality of guide blocks are fixedly connected to the outer side of the air outlet pipe of the special fan body, and the ring slides along the guide blocks.

[0011] As a further solution of the present invention, the support assembly includes a base, which is arranged directly below the shell. The top of the base is fixedly connected to an electric telescopic rod, and one end of the telescopic part of the electric telescopic rod is fixedly connected to a support frame that supports the shell.

[0012] As a further solution of the present invention, a dustproof net is fixedly connected to one side of the air inlet of the special fan body.

[0013] The beneficial effects of the utility model are:

[0014] 1. By using the connecting block and the L-shaped clamping block in conjunction with each other, the round tube is inserted into the air outlet pipe of the special fan body, and then the L-shaped clamping block is inserted into the clamping slot on the connecting block to connect the round tube to the air outlet pipe of the special fan. The noise reduction component in the shell reduces the noise of the special fan, thereby facilitating the installation of the noise reduction structure, saving time and improving installation efficiency.

[0015] 2. Through the setting of the locking component, after the L-shaped card block is inserted into the card slot, the L-shaped card block is locked and fixed by the locking component, so that the noise reduction structure can be installed more stably and the stability of the noise reduction structure installation is improved.

[0016] 3. Through the setting of the support assembly, after the shell is installed, the support assembly is used to support the shell, thereby ensuring that the shell is in a horizontal state and reducing the influence of gravity on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of a special fan noise reduction mechanism proposed in the utility model;

[0018] Figure 2 This is a partially enlarged structural diagram of a special fan noise reduction mechanism proposed in the utility model;

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of the shell of a special fan noise reduction mechanism proposed in the utility model.

[0020] In the figure: 1. Dustproof net; 2. Support frame; 3. Electric telescopic rod; 4. Base; 5. Guide block; 6. Fixing ring; 7. Circular ring; 8. Round rod; 9. Connecting block; 10. First connecting ring; 11. Socket; 12. L-shaped block; 13. Second connecting ring; 14. Circular tube; 15. Baffle; 16. Perforated tube; 17. Silencing cotton; 18. Shell. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 3 , a special fan noise reduction mechanism, including a special fan body, a round tube 14 is inserted in the air outlet pipe of the special fan body, a first connecting ring 10 is welded on the outside of the air outlet pipe of the special fan body, a round tube 14 is inserted in the air outlet pipe of the special duct machine body, a second connecting ring 13 is welded on the outside of the round tube 14, a plurality of connecting blocks 9 are evenly welded on the circumferential outer wall of the first connecting ring 10, a plurality of connecting blocks 9 are opened on one side of the plurality of connecting blocks 9, a plurality of L-shaped blocks 12 are evenly welded on the circumferential outer wall of the second connecting ring 13, and the L-shaped blocks 12 are clamped in the clamping slots, special style hanging A locking assembly for fixing the L-shaped block 12 is provided on the outside of the air outlet duct of the machine body. A shell 18 is welded to one end of the round tube 14. A noise reduction assembly for silencing wind noise is provided inside the shell 18. A support assembly is provided at the bottom of the shell 18. The round tube 14 is inserted into the air outlet duct on the special fan body, and then the round tube 14 is rotated to insert the L-shaped block 12 into the slot on the connecting block 9, thereby installing the round tube 14 and connecting the shell 18 to the special fan body, which facilitates the installation of the noise reduction structure, saves time and improves installation efficiency.

[0023] In the present utility model, the noise reduction component includes a sound-absorbing cotton 17, which is filled in a shell 18. A plurality of porous tubes 16 are welded in the shell 18, and both ends of the porous tubes 16 pass through the shell 18. The sound-absorbing cotton 17 wraps the plurality of porous tubes 16, and a plurality of evenly distributed baffles 15 are welded in the plurality of porous tubes 16. There is a gap between the baffles 15 and the porous tubes 16. When the special fan body is discharging air, the wind will pass through the circular tube 14 and enter the porous tubes 16 in the shell 18. At this time, the wind flows in the porous tubes 16, so that the sound-absorbing cotton 17 absorbs the noise of the wind to achieve noise reduction. At the same time, the wind flow direction will be changed under the action of the baffles 15, so that the sound-absorbing cotton 17 can better absorb the noise.

[0024] In particular, the locking assembly includes a fixing ring 6, which is welded to the outside of the air outlet pipe of the special fan body. A circular ring 7 is provided on the outside of the air outlet pipe of the special fan body. A spring is sleeved on the outside of the air outlet pipe of the special fan body, and the two ends of the spring are respectively fixed to the circular ring 7 and the fixing ring 6. A plurality of round rods 8 are welded on one side of the circular ring 7. The plurality of round rods 8 extend into the card slots through a plurality of connecting blocks 9 respectively. A socket 11 is provided on one side of the L-shaped card block 12, and the round rod 8 is plugged into the socket 11. A plurality of guide blocks 5 are welded on the outside of the air outlet pipe of the special fan body, and the circular ring 7 slides along the guide block 5. After the round tube 14 is inserted into the air outlet duct of the special fan body, the ring 7 is pulled to move along the guide block 5. The ring 7 will drive the round rod 8 to move and squeeze the spring to pull the round rod 8 out of the slot. Then, the round tube 14 is rotated to insert the L-shaped block 12 into the slot on the connecting block 9. Then, the ring 7 is released. At this time, the ring 7 is reset under the action of the spring, so that the round rod 8 on the ring 7 enters the slot and is inserted into the socket 11 to fix the L-shaped block 12, making the installation of the noise reduction structure more stable and improving the stability of the noise reduction structure installation.

[0025] The support assembly includes a base 4, which is arranged directly below the shell 18. An electric telescopic rod 3 is fixed to the top of the base 4 by bolts. One end of the telescopic part of the electric telescopic rod 3 is fixed to a support frame 2 for supporting the shell 18 by bolts. After the installation of the shell 18 is completed, the electric telescopic rod 3 extends and pushes the support frame 2 to move upward, so that the support frame 2 supports the shell 18, thereby ensuring that the shell 18 is in a horizontal state and reducing the influence of gravity on the shell 18. A dustproof net 1 is fixed to one side of the air inlet of the special fan body by bolts.

[0026] Working principle: When it is needed, insert the round tube 14 into the air outlet pipe on the special fan body, then pull the ring 7 to move along the guide block 5, the ring 7 will drive the round rod 8 to move and squeeze the spring, pull the round rod 8 out of the slot, then rotate the round tube 14, and insert the L-shaped block 12 into the slot on the connecting block 9, so as to install the round tube 14, thereby connecting the shell 18 to the special fan body, which is convenient for installing the noise reduction structure, saving time and improving installation efficiency, and then loosen the ring 7. At this time, under the action of the spring, the The ring 7 is reset and moved, so that the round rod 8 on the ring 7 enters the card slot and is inserted into the socket 11 to fix the L-shaped block 12, so that the noise reduction structure is installed more stably, and the stability of the noise reduction structure installation is improved. When the special fan body is discharging air, the wind will pass through the circular tube 14 and enter the porous tube 16 in the shell 18. At this time, the wind flows in the porous tube 16, so that the sound-absorbing cotton 17 absorbs the noise of the wind to achieve noise reduction. At the same time, the deflector 15 will change the flow direction of the wind, so that the sound-absorbing cotton 17 can better absorb the noise.

[0027] Furthermore, the terms "installed," "disposed," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

Claims

1. A special fan noise reduction mechanism, comprising a special fan body, characterized in that: A circular tube (14) is inserted into the air outlet pipe of the special fan body, a first connecting ring (10) is fixedly connected to the outer side of the air outlet pipe of the special fan body, a circular tube (14) is inserted into the air outlet pipe of the special fan body, a second connecting ring (13) is fixedly connected to the outer side of the circular tube (14), a plurality of connecting blocks (9) are evenly fixedly connected to the circumferential outer wall of the first connecting ring (10), a plurality of connecting blocks (9) are provided with a card slot on one side, a plurality of L-shaped card blocks (12) are evenly fixedly connected to the circumferential outer wall of the second connecting ring (13), and the L-shaped card blocks (12) are card-engaged with the card slot, a locking assembly for fixing the L-shaped card blocks (12) is provided on the outer side of the air outlet pipe of the special fan body, one end of the circular tube (14) is fixedly connected to a shell (18), a noise reduction assembly for silencing wind noise is provided in the shell (18), and a support assembly is provided at the bottom of the shell (18).

2. A special fan noise reduction mechanism according to claim 1, characterized in that: The noise reduction component includes silencer cotton (17), which is filled in a shell (18). A plurality of porous tubes (16) are fixedly connected in the shell (18), and both ends of the porous tubes (16) pass through the shell (18). The silencer cotton (17) wraps the plurality of porous tubes (16).

3. A special fan noise reduction mechanism according to claim 2, characterized in that: A plurality of evenly distributed baffles (15) are fixedly connected to the plurality of porous tubes (16), and gaps are provided between the baffles (15) and the porous tubes (16).

4. A special fan noise reduction mechanism according to claim 1, characterized in that: The locking assembly comprises a fixing ring (6), the fixing ring (6) being fixedly connected to the outside of the air outlet pipe of the special fan body, a circular ring (7) being provided on the outside of the air outlet pipe of the special fan body, a spring being sleeved on the outside of the air outlet pipe of the special fan body, and the two ends of the spring being respectively fixed to the circular ring (7) and the fixing ring (6), a plurality of round rods (8) being fixedly connected to one side of the circular ring (7), the plurality of round rods (8) respectively passing through a plurality of connecting blocks (9) and extending into the card slot, a socket (11) being provided on one side of the L-shaped card block (12), and the round rods (8) being plugged into the socket (11).

5. A special fan noise reduction mechanism according to claim 4, characterized in that: A plurality of guide blocks (5) are fixedly connected to the outer side of the air outlet pipe of the special fan body, and the circular ring (7) slides along the guide blocks (5).

6. A special fan noise reduction mechanism according to claim 1, characterized in that: The support assembly comprises a base (4), the base (4) being arranged directly below the housing (18), the top of the base (4) being fixedly connected to an electric telescopic rod (3), and one end of the telescopic portion of the electric telescopic rod (3) being fixedly connected to a support frame (2) supporting the housing (18).

7. The special fan noise reduction mechanism according to claim 1, characterized in that: A dust screen (1) is fixedly connected to one side of the air inlet of the special fan body.

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