Noise reduction equipment for warm ventilation pipe
By designing the movable connected shell, sound insulation cotton layer and thermal insulation cotton layer in HVAC equipment, combined with the structure of connecting rods and bolts, the problems of HVAC noise and thermal insulation cotton aging are solved, and better Sound insulation and stability.
Patent Information
- Application Number
- CN202421200627.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The internal air flow rate of existing HVAC ducts is too fast when used, and the insulation cotton of existing noise reduction equipment is prone to aging and scattering, reducing noise effects.
Design a noise reduction device for HVAC, adopting a movable connection between the left shell and the right shell, with a sound insulation cotton layer and a thermal insulation cotton layer fixed inside, and enhances sound insulation through connecting rods, bolts and rubber bulges. Effect, share gravity and fixation, reduce contact area to cushion vibration.
It improves the sound insulation effect of HVAC, avoids deformation caused by the increase in the weight of the equipment, extends the service life of the insulation cotton, and enhances the stability and noise reduction performance of the equipment.
Smart Images
Figure CN222255393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of noise reduction equipment, in particular to a noise reduction equipment for heating and ventilation ducts. Background Art
[0002] Ducts are pipe systems used for air delivery and distribution. There are two types: composite ducts and inorganic ducts. Composite ducts are represented by Durkduct ducts, which can be classified according to cross-sectional shape and material. Duct production is to apply sealant (such as neutral glass glue) to the seams such as the bite seams, rivet seams, and the four corners of the flange. Before applying the sealant, the surface dust and oil should be removed. According to the cross-sectional shape, ducts can be divided into circular ducts, rectangular ducts, oblate ducts, etc. Among them, circular ducts have the smallest resistance but the largest height size, and are complex to make, so rectangular ducts are mainly used. According to the material, ducts can be divided into metal ducts, composite ducts, and polymer ducts. HVAC ducts are pipes used to transport heating.
[0003] The HVAC duct is connected to the heating equipment, and then the HVAC duct is connected. However, when the existing HVAC duct is in use, the internal wind speed is too fast and abnormal noise will be generated. People are also very sensitive to noise, so noise reduction equipment is used to reduce the noise.
[0004] Existing noise reduction equipment is usually wrapped with a layer of thermal insulation cotton on its outer wall when in use. However, the thermal insulation cotton is prone to aging after long-term use, and it is easy to scatter, which will reduce its effect. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a noise reduction device for heating and ventilation ducts to solve the technical problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction device for a heating and ventilation duct, comprising a left shell and a right shell, the left shell and the right shell are movably connected, sound insulation cotton layers are fixed inside the left shell and the right shell, and a thermal insulation cotton layer is fixed on one side of the sound insulation cotton layer inside the left shell and the right shell, a fixing seat is fixed on the top of the right shell, and a connecting rod is movably installed on the top of the fixing seat, and the thermal insulation cotton layer is movably installed on the end of the connecting rod.
[0007] By adopting the above technical solution, the sound insulation effect of the heating and ventilation duct is improved, and the left shell and the right shell are disassembled and connected, so that they can be easily engaged on the outer wall of the heating and ventilation duct, and the dryness reduction treatment can be better performed thereon. The connecting rod is also provided to better share the force between the left shell and the right shell, thus avoiding the problem of increasing the weight of the heating and ventilation duct and causing it to deform.
[0008] The utility model is further configured that a cross bar is fixed to one side of the bottom of the right shell, a groove is opened on one side of the left shell, and the inner wall of the groove is in contact with the outer wall of the cross bar.
[0009] By adopting the above technical solution, the contact area between the left shell and the cross bar can be increased through the arrangement, so that the connection between the left shell and the right shell is more stable.
[0010] The utility model is further configured that a bolt is installed on one side of the fixing seat, and a threaded hole is opened on the top of the left shell body.
[0011] By adopting the above technical solution, the right shell can be better fixed by the provided bolts to avoid separation of the right shell from the left shell. The left shell and the right shell can be fixedly connected by adopting two sets of bolts, which is more convenient.
[0012] The utility model is further configured that the left shell and the right shell are made of plastic material.
[0013] By adopting the above technical solution, the left shell and the right shell made of plastic material are lighter in weight.
[0014] The utility model is further configured that the connecting rod is arranged tilted.
[0015] By adopting the above technical solution, the inclined connecting rod can better share the gravity of the left shell and the right shell.
[0016] The utility model is further configured that a plurality of groups of protrusions are fixed on one side of the thermal insulation cotton layer, and the material of the protrusions is rubber material.
[0017] By adopting the above technical solution, the contact area with the heating and ventilation duct can be reduced by the provided protrusions, and the protrusions made of rubber material can prevent the vibration generated when the heating and ventilation duct is working from being transmitted to the left shell and the right shell.
[0018] In summary, the utility model mainly has the following beneficial effects:
[0019] The utility model has a better sound insulation effect on the heating and ventilation duct by providing a thermal insulation cotton layer, a sound insulation cotton layer, a protrusion and a connecting rod. The left shell and the right shell are disassembled and connected, so that they can be conveniently engaged on the outer wall of the heating and ventilation duct, and the noise reduction treatment can be better performed thereon. The connecting rod is provided to better share the force of the left shell and the right shell, avoiding the problem of increasing the weight of the heating and ventilation duct and causing it to deform. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2It is a three-dimensional diagram of the left housing of the utility model;
[0022] Figure 3 It is a three-dimensional diagram of the right shell of the utility model.
[0023] In the figure: 1. left shell; 2. right shell; 3. fixing seat; 4. connecting rod; 5. thermal insulation cotton layer; 6. sound insulation cotton layer; 7. protrusion; 8. cross bar; 9. groove; 10. bolt. DETAILED DESCRIPTION
[0024] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0025] The following describes an embodiment of the utility model based on its overall structure.
[0026] A noise reduction device for heating and ventilation ducts, such as Figure 1 - Figure 3 As shown, it includes a left shell body 1 and a right shell body 2, and the left shell body 1 and the right shell body 2 are movably connected. Sound insulation cotton layers 6 are fixed inside the left shell body 1 and the right shell body 2, and a thermal insulation cotton layer 5 is fixed on one side of the sound insulation cotton layer 6 inside the left shell body 1 and the right shell body 2. A fixing seat 3 is fixed on the top of the right shell body 2, and a connecting rod 4 is movably installed on the top of the fixing seat 3, and a thermal insulation cotton layer 5 is movably installed on the end of the connecting rod 4. Then, the left shell body 1 and the right shell body 1 are fixed by bolts 10. The setting of the protrusion 7 can reduce the contact area with the heating and ventilation duct, and can also buffer the vibration of the heating and ventilation duct, which can achieve the purpose of noise reduction to a certain extent.
[0027] See also Figure 1-Figure 3 A cross bar 8 is fixed to one side of the bottom of the right shell 2, and a groove 9 is opened on one side of the left shell 1, and the inner wall of the groove 9 is in contact with the outer wall of the cross bar 8. The cross bar 8 can increase the contact area with the left shell 1, making the connection between the left shell 1 and the right shell 2 more stable.
[0028] See also Figure 1 and Figure 2 A bolt 10 is installed on one side of the fixing seat 3, and a threaded hole is opened on the top of the left shell 1. The bolt 10 can better fix the right shell 2 to avoid separation of the right shell 2 from the left shell 1. By using two sets of bolts 10, the left shell 1 and the right shell 2 can be fixedly connected, which is more convenient.
[0029] See also Figure 2 and Figure 3The left shell 1 and the right shell 2 are made of plastic material, and the left shell 1 and the right shell 2 made of plastic material are light in weight.
[0030] See also Figure 1 The connecting rod 4 is tilted, and the tilted connecting rod 4 can better share the gravity of the left shell 1 and the right shell 1.
[0031] See also Figure 1 A plurality of groups of protrusions 7 are fixed on one side of the thermal insulation cotton layer 5, and the material of the protrusions 7 is rubber. The protrusions 7 are provided to reduce the contact area with the heating and ventilation ducts. The protrusions 7 made of rubber can prevent the vibration generated when the heating and ventilation ducts are working from being transmitted to the left shell 1 and the right shell 1.
[0032] The working principle of the utility model is: when in use, the left shell 1 and the right shell 1 are connected, the left shell 1 and the right shell 1 are wrapped around the outer wall of the heating and ventilation duct, and then the left shell 1 and the right shell 1 are fixed by bolts 10. The setting of the protrusion 7 can reduce the contact area with the heating and ventilation duct, and can also buffer the vibration of the heating and ventilation duct, which can achieve the purpose of noise reduction to a certain extent. The internal thermal insulation cotton layer 5 can reduce heat loss, and the sound insulation cotton layer reduces noise. Then the horizontal plate 8 is fixed to the top of the house, and the inclined connecting rod 4 can share the force of the left shell 1 and the right shell 1.
[0033] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A noise reduction device for a heating and ventilation duct, comprising a left shell (1) and a right shell (2), wherein the left shell (1) and the right shell (2) are movably connected, characterized in that: A sound insulation cotton layer (6) is fixed inside the left shell (1) and the right shell (2), and a heat preservation cotton layer (5) is fixed on one side of the sound insulation cotton layer (6) inside the left shell (1) and the right shell (2), a fixing seat (3) is fixed on the top of the right shell (2), and a connecting rod (4) is movably installed on the top of the fixing seat (3), and a heat preservation cotton layer (5) is movably installed on the end of the connecting rod (4).
2. A noise reduction device for heating and ventilation pipes according to claim 1, characterized in that: A cross bar (8) is fixed to one side of the bottom of the right shell (2), and a groove (9) is provided on one side of the left shell (1), and the inner wall of the groove (9) is in contact with the outer wall of the cross bar (8).
3. The noise reduction device for heating and ventilation pipes according to claim 1, characterized in that: A bolt (10) is installed on one side of the fixing seat (3), and a threaded hole is opened on the top of the left housing (1).
4. The noise reduction device for heating and ventilation pipes according to claim 1, characterized in that: The left shell (1) and the right shell (2) are made of plastic.
5. The noise reduction device for heating and ventilation pipes according to claim 1, characterized in that: The connecting rod (4) is arranged obliquely.
6. The noise reduction device for heating and ventilation pipes according to claim 1, characterized in that: A plurality of groups of protrusions (7) are fixed on one side of the heat-insulating cotton layer (5), and the protrusions (7) are made of rubber material.