Ventilation pipeline with noise reduction function

Abstract

The utility model relates to the technical field of ventilating ducts, and discloses a ventilating duct with a noise reduction function, which comprises a ventilating duct box, one end of the ventilating duct box is fixedly provided with a connecting frame, one end of the connecting frame is fixedly provided with a sealing groove, one end of the ventilating duct box is fixedly provided with an air inlet duct, and the other end of the ventilating duct box is fixedly provided with an air outlet duct. A wind limiting protruding block is fixedly arranged in the air inlet pipeline, a supporting block is fixedly arranged at one end of the wind limiting protruding block, a noise reduction structure is fixedly arranged in the ventilation pipe box, and a mounting structure is fixedly arranged on the upper side of the ventilation pipe box. According to the ventilation pipeline with the noise reduction function, by improving the ventilation pipeline, the speed reduction and noise reduction capacity of the ventilation pipeline is improved, in the actual use process of the ventilation pipeline, the air speed in the ventilation pipeline can be reduced according to needs, and sound absorption and noise reduction of the ventilation pipeline are facilitated; and the noise reduction effect of the ventilation pipeline with the noise reduction function is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically a ventilation duct with noise reduction function. Background Technology

[0002] Ventilation ducts are short for ventilation pipes. They are metal or non-metal pipes used in ventilation and air conditioning projects in industrial and civil buildings. Ventilation ducts are a type of municipal infrastructure designed to circulate air and reduce the concentration of harmful gases.

[0003] Existing technology publication CN222760726U discloses a high-temperature resistant ventilation duct for material conveying. Due to the threaded connection, the first and second connecting discs are fixed together via threaded fasteners, improving convenience. An auxiliary detection mechanism includes a sliding sleeve and a fixed top, which are fixedly installed at the connection between the first and second ventilation ducts via a fixing mechanism. The sliding sleeve auxiliary detection mechanism detects whether there is material leakage at the connection between the first and second ventilation ducts. The fixing mechanism includes a fixing plate and fixing bolts. Fixing plates are provided on both the sliding sleeve and the fixed top, and fixing bolts are installed on the fixing plates. The fixing bolts fix the fixing plates, thereby installing the sliding sleeve and fixed top at the connection between the first and second ventilation ducts. The detection mechanism includes a baffle, a sliding box, a telescopic rod, a spring, a battery, a proximity switch, and an alarm. The baffle is inclinedly installed on the inner wall of the sliding sleeve, the sliding box is slidably installed inside the sliding sleeve, and the telescopic rod... One end of the spring is installed at the bottom of the sliding sleeve, and the other end of the telescopic rod is installed at the bottom of the sliding box. A battery is installed at the bottom of the sliding sleeve, a proximity switch is mounted on the battery, and an alarm is installed at the bottom of the sliding sleeve. When material leakage occurs at the connection between the first and second ventilation ducts, a baffle guides the leakage, causing it to fall into the sliding box. The weight of the falling material then causes the spring and telescopic rod to retract, bringing the sliding box close to the proximity switch. The battery then powers the proximity switch, which in turn activates the alarm, alerting the operator to perform maintenance. The first and second ventilation ducts are made of high-temperature glass fiber, polytetrafluoroethylene, or polyamide, etc. This design improves heat resistance. The main body is fixed via a connecting mechanism, which in turn fixes the auxiliary detection mechanism. The detection mechanism checks for leakage at the connection of the main body, enhancing practicality.

[0004] However, in the existing technology CN222760726U patent, the speed reduction and noise reduction capabilities of a high-temperature resistant ventilation duct for material conveying are poor. As a result, in the actual use of the high-temperature resistant ventilation duct for material conveying, it is impossible to reduce the wind speed in the ventilation duct as needed, which is not conducive to the sound absorption and noise reduction of the ventilation duct and affects the noise reduction effect of the high-temperature resistant ventilation duct for material conveying. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a ventilation duct with noise reduction function to solve the problem of poor speed reduction and noise reduction capability of a high-temperature resistant ventilation duct for material conveying mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a ventilation duct with noise reduction function, comprising a ventilation duct box, a connecting frame fixedly provided at one end of the ventilation duct box, a sealing groove fixedly provided at one end of the connecting frame, an air inlet pipe fixedly provided at one end of the ventilation duct box, a wind-limiting protrusion fixedly provided inside the air inlet pipe, a support block fixedly provided at one end of the wind-limiting protrusion, a noise reduction structure fixedly provided inside the ventilation duct box, a suspension structure fixedly provided at the upper end of the ventilation duct box, and an installation structure fixedly provided on the upper side of the ventilation duct box.

[0009] As a further improvement of this utility model, the noise reduction structure includes a foam filter plate, and a polyamide fiber layer is fixedly arranged inside the foam filter plate. By improving the ventilation duct, the speed reduction and noise reduction capability of the ventilation duct is improved. In the actual use of the ventilation duct, the wind speed in the ventilation duct can be reduced as needed, which facilitates the sound absorption and noise reduction of the ventilation duct and improves the noise reduction effect of the ventilation duct with noise reduction function.

[0010] As a further improvement of this utility model: a cellulose nanofiber layer is fixedly disposed inside the polyamide fiber layer, and a thermoplastic elastomer is fixedly disposed inside the cellulose nanofiber layer. The use of the connecting frame and sealing groove facilitates the connection and fixation of the air intake pipe. Then, the use of the air intake pipe, the wind-limiting protrusion and the support block facilitates the speed reduction of the ventilation pipe with noise reduction function.

[0011] As a further improvement of this utility model: a sponge box is fixedly installed inside the thermoplastic elastomer, and a ventilation opening is fixedly installed inside the sponge box. The use of foam filter board and polyamide fiber layer facilitates sound absorption of the air intake pipe. Then, the use of cellulose nanofiber layer, thermoplastic elastomer and sponge box improves the support effect of ventilation pipe with noise reduction function.

[0012] As a further improvement of this utility model: the suspension structure includes a mounting plate, an extension column is fixedly provided at the upper end of the mounting plate, a movable ball is fixedly provided at the upper end of the extension column, a push rod is movably provided at the upper end of the movable ball, and an electric push rod is movably provided at the upper end of the push rod. The use of the mounting plate facilitates the connection and fixation of the ventilation duct box.

[0013] As a further improvement of this utility model: the installation structure includes a fixed plate, and a buffer rubber pad is fixedly installed at the upper end of the fixed plate. By controlling the movement of the extension column and the movable ball, the ventilation duct box can be adjusted to a suitable angle.

[0014] As a further embodiment of this utility model: a fixing groove is fixedly provided at one end of the fixing plate, and a connecting screw hole is fixedly provided at the upper end of the fixing plate. By controlling the extension and retraction of the first push rod and the first electric push rod, the fixing plate and the buffer rubber pad are pushed to a suitable height. Then, the fixing groove and the connecting screw hole are used to fix and install the fixing plate and the buffer rubber pad.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This ventilation duct with noise reduction function improves the speed reduction and noise reduction capabilities of the ventilation duct through improvements. In actual use, the wind speed in the ventilation duct can be reduced as needed, which facilitates sound absorption and noise reduction, and improves the noise reduction effect of the ventilation duct with noise reduction function.

[0017] 2. This ventilation duct with noise reduction function facilitates the connection and fixation of the air intake duct through the use of connecting frames and sealing grooves. Then, the use of air intake ducts, air limiting protrusions and support blocks facilitates the speed reduction of the ventilation duct with noise reduction function. Then, the use of foam filter plates and polyamide fiber layers facilitates the sound absorption of the air intake duct. Then, the use of cellulose nanofiber layers, thermoplastic elastomers and sponge boxes improves the support effect of the ventilation duct with noise reduction function. Finally, the use of mounting plates facilitates the connection and fixation of the ventilation duct box.

[0018] 3. This ventilation duct with noise reduction function adjusts the ventilation duct box to a suitable angle by controlling the movement of the extension column and the movable ball. Then, by controlling the extension and retraction of the push rod and the electric push rod, the fixed plate and the buffer rubber pad are pushed to a suitable height. Finally, the fixed plate and the buffer rubber pad are fixedly installed by using the fixing groove and the connecting screw hole.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the foam filter plate of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the electric push rod of this utility model;

[0023] Figure 4 This is a schematic diagram of the fixed plate structure of this utility model.

[0024] In the diagram: 1. Ventilation duct box; 2. Connecting frame; 3. Sealing groove; 4. Air inlet duct; 5. Air limiting protrusion; 6. Support block; 7. Foam filter plate; 8. Polyamide fiber layer; 9. Cellulose nanofiber layer; 10. Thermoplastic elastomer; 11. Sponge box; 12. Ventilation opening; 13. Mounting plate; 14. Extension column; 15. Movable ball; 16. Push rod one; 17. Electric push rod one; 18. Fixed plate; 19. Buffer rubber pad; 20. Fixed groove; 21. Connecting screw hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Ventilation duct box 1, connecting frame 2, sealing groove 3, air inlet pipe 4, air limiting protrusion 5, support block 6, foam filter plate 7, polyamide fiber layer 8, cellulose nanofiber layer 9, thermoplastic elastomer 10, sponge box 11, vent 12, mounting plate 13, extension column 14, movable ball 15, push rod 16, electric push rod 17, fixing plate 18, buffer rubber pad 19, fixing groove 20, connecting screw hole 21

[0026] Please see Figures 1-4This utility model provides a technical solution: a ventilation duct with noise reduction function, including a ventilation duct box 1, a connecting frame 2 fixedly installed at one end of the ventilation duct box 1, a sealing groove 3 fixedly installed at one end of the connecting frame 2, an air inlet pipe 4 fixedly installed at one end of the ventilation duct box 1, a wind-limiting protrusion 5 fixedly installed inside the air inlet pipe 4, a support block 6 fixedly installed at one end of the wind-limiting protrusion 5, a noise reduction structure fixedly installed inside the ventilation duct box 1, a suspension structure fixedly installed at the upper end of the ventilation duct box 1, and an installation structure fixedly installed on the upper side of the ventilation duct box 1.

[0027] The noise reduction structure includes a foam filter plate 7, inside which a polyamide fiber layer 8 is fixedly installed, inside which a cellulose nanofiber layer 9 is fixedly installed, inside which a thermoplastic elastomer 10 is fixedly installed, inside which a sponge box 11 is fixedly installed, and inside which a vent 12 is fixedly installed. The use of the connecting frame 2 and the sealing groove 3 facilitates the connection and fixation of the air intake pipe. The use of the air intake pipe 4, the air limiting protrusion 5, and the support block 6 facilitates the speed reduction of the ventilation pipe with noise reduction function. The use of the foam filter plate 7 and the polyamide fiber layer 8 facilitates sound absorption in the air intake pipe. The use of the cellulose nanofiber layer 9, the thermoplastic elastomer 10, and the sponge box 11 improves the support effect of the ventilation pipe with noise reduction function. Finally, the use of the mounting plate 13 facilitates the connection and fixation of the ventilation duct box 1.

[0028] The suspension structure includes a mounting plate 13, an extension column 14 fixedly mounted on the upper end of the mounting plate 13, a movable ball 15 fixedly mounted on the upper end of the extension column 14, a push rod 16 movably mounted on the upper end of the movable ball 15, and an electric push rod 17 movably mounted on the upper end of the push rod 16. The installation structure includes a fixed plate 18, a buffer rubber pad 19 fixedly mounted on the upper end of the fixed plate 18, a fixed groove 20 fixedly mounted on one end of the fixed plate 18, and a connecting screw hole 21 fixedly mounted on the upper end of the fixed plate 18. By controlling the movement of the extension column 14 and the movable ball 15, the ventilation duct box 1 is adjusted to a suitable angle. Then, by controlling the extension and retraction of the push rod 16 and the electric push rod 17, the fixed plate 18 and the buffer rubber pad 19 are pushed to a suitable height. Finally, the fixed plate 18 and the buffer rubber pad 19 are fixedly installed by using the fixed groove 20 and the connecting screw hole 21.

[0029] Working principle: First, the use of connecting frame 2 and sealing groove 3 facilitates the connection and fixation of the air intake pipe. Then, the use of air intake pipe 4, wind limiting protrusion 5, and support block 6 facilitates the speed reduction of the ventilation pipe with noise reduction function. Then, the use of foam filter plate 7 and polyamide fiber layer 8 facilitates the sound absorption of the air intake pipe. Then, the use of cellulose nanofiber layer 9, thermoplastic elastomer 10, and sponge box 11 improves the support effect of the ventilation pipe with noise reduction function. Then, the use of mounting plate 13 facilitates the connection and fixation of ventilation duct box 1. Then, by controlling the movement of extension column 14 and movable ball 15, the ventilation duct box 1 is adjusted to a suitable angle. Then, by controlling the extension and retraction of push rod 16 and electric push rod 17, the fixed plate 18 and buffer rubber pad 19 are pushed to a suitable height. Finally, the use of fixing groove 20 and connecting screw hole 21 fixes and installs the fixed plate 18 and buffer rubber pad 19.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A ventilation duct with noise reduction function, comprising a ventilation duct box (1), characterized in that: A connecting frame (2) is fixedly installed at one end of the ventilation duct box (1), a sealing groove (3) is fixedly installed at one end of the connecting frame (2), an air inlet pipe (4) is fixedly installed at one end of the ventilation duct box (1), a wind-limiting protrusion (5) is fixedly installed inside the air inlet pipe (4), a support block (6) is fixedly installed at one end of the wind-limiting protrusion (5), a noise reduction structure is fixedly installed inside the ventilation duct box (1), a suspension structure is fixedly installed at the upper end of the ventilation duct box (1), and an installation structure is fixedly installed on the upper side of the ventilation duct box (1).

2. A ventilation duct with noise reduction function according to claim 1, characterized in that: The noise reduction structure includes a foam filter plate (7), and a polyamide fiber layer (8) is fixedly disposed inside the foam filter plate (7).

3. A ventilation duct with noise reduction function according to claim 2, characterized in that: A cellulose nanofiber layer (9) is fixedly disposed inside the polyamide fiber layer (8), and a thermoplastic elastomer (10) is fixedly disposed inside the cellulose nanofiber layer (9).

4. A ventilation duct with noise reduction function according to claim 3, characterized in that: A sponge box (11) is fixedly installed inside the thermoplastic elastomer (10), and a vent (12) is fixedly installed inside the sponge box (11).

5. A ventilation duct with noise reduction function according to claim 4, characterized in that: The suspension structure includes a mounting plate (13), an extension column (14) is fixedly provided at the upper end of the mounting plate (13), a movable ball (15) is fixedly provided at the upper end of the extension column (14), a push rod (16) is movably provided at the upper end of the movable ball (15), and an electric push rod (17) is movably provided at the upper end of the push rod (16).

6. A ventilation duct with noise reduction function according to claim 5, characterized in that: The mounting structure includes a fixed plate (18), and a buffer rubber pad (19) is fixedly installed at the upper end of the fixed plate (18).

7. A ventilation duct with noise reduction function according to claim 6, characterized in that: One end of the fixed plate (18) is fixedly provided with a fixing groove (20), and the upper end of the fixed plate (18) is fixedly provided with a connecting screw hole (21).

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