A copper-made radiating assembly capable of reducing noise

Abstract

This application discloses a copper venting assembly for noise reduction; it includes a noise-reducing cylinder with an inlet and an outlet, the interior of which is filled with sound-absorbing material to form a noise-reducing zone; the noise-reducing cylinder is connected to a venting pipe via a connecting pipe at the inlet, so that the airflow from the venting pipe passes through the noise-reducing zone and is discharged through the outlet of the noise-reducing cylinder; the connecting pipe and the venting pipe are connected by a locking structure, which is adapted to adjust the locking force between the connecting pipe and the venting pipe according to the outlet pressure of the venting pipe. The beneficial effects of this application are: by adaptively adjusting the locking force according to the outlet pressure of the venting pipe through the locking structure, the strong connection between the noise-reducing device and the venting pipe is effectively increased, reducing resonance and the noise generated by resonance; and the noise-reducing effect is greatly enhanced by setting up a noise-reducing channel.

Description

Technical Field

[0001] This application relates to the field of gas emission noise reduction, and in particular to a copper emission assembly that can reduce noise. Background Technology

[0002] Gas pipeline venting is a crucial step in pipeline maintenance and emergency repairs, primarily used to safely depressurize high-pressure gas within the work section before construction. The effectiveness of its noise reduction devices directly impacts the quality of life for nearby residents and the occupational health of workers.

[0003] In traditional gas venting operations, due to the low pipeline pressure and lax environmental requirements in the early stages, direct open venting was typically used, with noise dispersed simply by extending the vent pipe. This approach was acceptable under low flow and low pressure conditions. However, with the widespread adoption of urban high-pressure pipelines and stricter environmental standards, traditional venting methods have revealed serious drawbacks: on the one hand, acoustic design limitations lead to excessive noise; on the other hand, pressure fluctuations can easily trigger structural resonance, further increasing vibration and noise, resulting in severe noise pollution and potentially causing hearing damage to workers and equipment fatigue failure. Based on these problems, a new solution is urgently needed. Utility Model Content

[0004] The purpose of this application is to provide a noise-reducing copper venting assembly that can solve at least one of the defects in the above-mentioned background art.

[0005] To achieve at least one of the above objectives, this application provides a copper venting assembly for reducing noise, comprising a noise-reducing cylinder having an inlet and an outlet, wherein the interior of the noise-reducing cylinder is filled with sound-absorbing material to form a noise-reducing zone; the noise-reducing cylinder is connected to a venting pipe via a connecting pipe at the inlet, so that the airflow of the venting pipe passes through the noise-reducing zone and is discharged along the outlet of the noise-reducing cylinder; the connecting pipe and the venting pipe are connected by a locking structure, the locking structure being adapted to adjust the locking force between the connecting pipe and the venting pipe according to the outlet pressure of the venting pipe.

[0006] Preferably, the noise-reducing cylinder includes an outer shell and an inner sleeve; the outer shell and the inner sleeve form a noise-reducing cavity, and the inner sleeve forms a noise-reducing channel; the noise-reducing cavity and the noise-reducing channel are filled with sound-absorbing material; the noise-reducing channel connects the inlet and outlet of the noise-reducing cylinder.

[0007] Preferably, the noise reduction channel is S-shaped.

[0008] Preferably, the noise reduction channel bends left and right along the centerline of the noise reduction cylinder, and the maximum deviation of the centerline of the noise reduction channel from the centerline of the noise reduction cylinder in the left and right directions is 1 to 1.5 times the width of the noise reduction channel.

[0009] Preferably, the noise reduction cavity is filled with a first sound-absorbing material, and the noise reduction channel is filled with a second sound-absorbing material, wherein the density of the first sound-absorbing material is greater than the density of the second sound-absorbing material.

[0010] Preferably, a first noise reduction plate is provided at the entrance of the noise reduction channel, and a second noise reduction plate is provided at the exit of the noise reduction channel; both the first noise reduction plate and the second noise reduction plate are provided with multiple through holes.

[0011] Preferably, the connecting pipe includes a first section and a second section; the first section is threaded into the vent pipe; the second section is engaged with the vent pipe through the locking structure; based on the outlet pressure of the vent pipe, the locking structure locks or disengages the second section from the vent pipe.

[0012] Preferably, the locking structure includes an air passage, a reset component, and a slot; both ends of the air passage extend through the interior of the second section and the connecting pipe; the slot is disposed on the side wall of the venting pipe; the reset component is disposed at one end of the air passage corresponding to the slot, and the reset component is adapted to extend out of the second section or retract into the second section under the air pressure of the air passage, thereby engaging or disengaging from the slot.

[0013] Preferably, the reset assembly includes an elastic element and a locking block, the locking block being radially elastically and slidably mounted on the side of the second section via the elastic element, and the locking block being adapted to extend out of the second section or retract into the second section under air pressure.

[0014] Preferably, the number of air passages and reset components are multiple and identical, and they are evenly spaced in the circumferential direction. The slots are arranged in a ring on the side wall of the venting pipe.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] In the technical solution of this application, the locking structure adaptively adjusts the locking force according to the outlet pressure of the vent pipe, which effectively increases the firm connection between the noise reduction device and the vent pipe, reduces resonance and the noise generated by resonance, and greatly enhances the noise reduction effect by setting a noise reduction channel. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the locking structure in this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the locking structure in this utility model. Figure 2 .

[0020] In the figure: Noise-reducing cylinder 1, outer shell 110, inner sleeve 120, noise-reducing cavity 130, noise-reducing channel 140, first noise-reducing plate 150, second noise-reducing plate 160, connecting pipe 2, first section 210, second section 220, locking structure 230, air passage 231, spring 232, locking block 233, locking groove 234, first sound-absorbing material 310, second sound-absorbing material 320. Detailed Implementation

[0021] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] A preferred embodiment of this application, such as Figure 1 As shown, a copper venting assembly for reducing noise includes a noise-reducing cylinder 1 with an inlet and an outlet. The interior of the noise-reducing cylinder 1 is filled with sound-absorbing material to form a noise-reducing zone. The noise-reducing cylinder 1 is connected to a venting pipe via a connecting pipe 2 at the inlet, so that the airflow of the venting pipe passes through the noise-reducing zone and is discharged along the outlet of the noise-reducing cylinder 1. The connecting pipe 2 and the venting pipe are connected by a locking structure 230, which is adapted to adjust the locking force between the connecting pipe 2 and the venting pipe according to the outlet pressure of the venting pipe.

[0026] It should be understood that the inlet and outlet of the noise-reducing cylinder 1 are internally connected. As airflow enters through the inlet and exits through the outlet of the noise-reducing cylinder 1, it passes through a noise-reducing zone for noise reduction. This noise-reducing zone is formed by filling it with sound-absorbing material. The sound-absorbing material has two effects: first, it reduces the airflow velocity to reduce noise; second, it causes the sound waves to be repeatedly reflected and weakened within the sound-absorbing material to reduce noise.

[0027] It should also be noted that the connecting pipe 2 and the vent pipe are connected by a locking structure 230. The locking structure 230 is an adaptive structure that can automatically adapt to different vent pipe outlet pressures. If there is pressure at the vent pipe outlet, i.e., in a venting state, the locking structure 230 will generate a locking force, ensuring a secure connection between the connecting pipe 2 and the vent pipe. If the pressure at the vent pipe outlet is high, such as in the case of handling high-pressure pipelines, the locking force of the locking structure 230 will further increase, making the connection between the connecting pipe 2 and the vent pipe even stronger. This increases the stability and reliability of the connection while reducing resonance noise caused by air leakage due to insufficient tightness or by excessive air pressure. If there is no pressure at the vent pipe outlet, i.e., during the installation or removal of the noise reduction device, the locking structure 230 will not generate a locking force, thus not affecting the installation or removal of the noise reduction device.

[0028] Understandably, the locking structure 230 can automatically adjust the locking force according to the outlet pressure of the vent pipe, so that the same noise reduction device can be used for vent pipes of different pressure pipelines. It is not necessary to select different sizes of noise reduction devices according to different pressure pipelines, which facilitates the uniform standard treatment of vent pipes of different pressure pipelines by operators, further improving work efficiency and ensuring the noise reduction performance.

[0029] For the noise-reducing cylinder 1, if a single-layer structure is adopted and sound-absorbing material is directly filled inside, the noise reduction effect is easily poor due to insufficient cylinder wall thickness. A preferred embodiment of this application is as follows... Figure 1 As shown, a double-layer structure is adopted. The noise reduction cylinder 1 includes an outer shell 110 and an inner sleeve 120. The outer shell 110 and the inner sleeve 120 form a noise reduction cavity 130, and the inner sleeve 120 forms a noise reduction channel 140. Sound-absorbing material is filled in the noise reduction cavity 130 and the noise reduction channel 140. The noise reduction channel 140 connects the inlet and outlet of the noise reduction cylinder 1.

[0030] It should be understood that the noise reduction channel 140 enclosed by the inner sleeve 120 is a pipe-shaped structure. The noise reduction channel 140 connects the inlet and outlet of the noise reduction cylinder 1. The airflow generated by the vent pipe enters through the inlet of the noise reduction cylinder 1, passes through the noise reduction channel 140, and then exits from the outlet of the noise reduction cylinder 1. Therefore, the sound-absorbing material in the noise reduction channel 140 should have the function of both slowing down the airflow and reducing sound waves. The noise reduction cavity 130 is a structure that surrounds the noise reduction channel 140, and it performs a second weakening on the sound waves that have been weakened in the first stage within the noise reduction channel 140. Therefore, the sound-absorbing material in the noise reduction cavity 130 only needs to have the function of reducing sound waves.

[0031] It should also be noted that the outer shell 110 and inner sleeve 120 are often made of metal, and an antistatic coating, such as an epoxy oil-resistant antistatic topcoat, can be applied to the metal walls to avoid safety hazards caused by static electricity.

[0032] Understandably, by adopting a double-layer structure, through the first noise reduction treatment in the noise reduction channel 140 and the second noise reduction treatment in the noise reduction cavity 130, the noise reduction effect can be stronger than that of a single-layer structure. The noise reduction cavity 130, which is enclosed by the outer shell 110 and the inner sleeve 120, is sealed. The sound-absorbing material in the noise reduction cavity 130 avoids direct contact with air and airflow, thus avoiding the risk of being washed away or worn down, which would reduce the noise reduction effect, and greatly improves the durability and operating efficiency of the device. The sound-absorbing material in the noise reduction channel 140 is also easy to replace after wear or damage due to the interconnected structure of the two ends of the noise reduction channel 140, which greatly improves convenience.

[0033] The noise reduction channel 140 can be shaped in various ways, such as straight, broken, or S-shaped. Different shapes will result in different noise reduction effects of the noise reduction channel 140. A preferred embodiment of this application is shown below. Figure 1 As shown, the noise reduction channel 140 has an S-shaped shape.

[0034] It should be understood that using an S-shaped noise reduction channel 140 can extend the airflow path, thus allowing the sound-absorbing material to produce a better deceleration effect on the airflow. Furthermore, due to the S-shaped structure, the airflow changes direction when it comes into contact with the side wall of the noise reduction channel 140, which further increases the frictional deceleration effect on the airflow. After multiple changes in airflow direction and the deceleration effect of the sound-absorbing material, the airflow velocity has been significantly reduced when it reaches the outlet of the noise reduction cylinder 1, thus significantly reducing the noise.

[0035] Understandably, if a straight noise reduction channel 140 is used, its length must be considered. If the length is too short, the noise reduction effect will be poor; if the length is too long, the overall weight of the device will increase and material consumption will increase. Using an S-shaped noise reduction channel 140 can achieve a better noise reduction effect with the same volume of noise reduction cylinder 1. If a broken-line noise reduction channel 140 is used, the angle at the bend must be considered. If the bend is too large relative to the curve of the S-shape, eddy currents are very likely to be generated, which will further increase eddy current noise. If the bend is too small, it will be similar to the straight noise reduction channel 140, and a good noise reduction effect cannot be achieved. Therefore, in this embodiment, the noise reduction channel 140 is preferably S-shaped.

[0036] A preferred embodiment of this application, such as Figure 1 As shown, the noise reduction channel 140 bends left and right along the center line of the noise reduction cylinder 1, and the maximum deviation distance of the center line of the noise reduction channel 140 from the center line of the noise reduction cylinder 1 in the left and right directions is 1 to 1.5 times the width of the noise reduction channel 140.

[0037] It should be understood that the maximum deviation distance affects the noise reduction effect of the S-shaped noise reduction channel 140. If the maximum deviation distance is too small, the channel extension distance of the S-shaped noise reduction channel 140 is shorter than that of the straight noise reduction channel 140, resulting in a smaller improvement in noise reduction effect and failing to fully utilize the advantages of the internal volume of the noise reduction cylinder 1. Therefore, the minimum value of the maximum deviation distance of the S-shaped noise reduction channel 140 should be 1 times the width of the noise reduction channel 140. On the other hand, if the maximum deviation distance is too large, it will cause the airflow to impact the S-shaped noise reduction channel 140 too strongly. For example, if it impacts the side wall of the noise reduction channel 140 vertically, it will easily generate eddies, causing an increase in noise. Furthermore, the long-term high-pressure impact on the side wall will affect the durability of the device. Therefore, in this embodiment, the maximum deviation distance of the centerline of the noise reduction channel 140 from the centerline of the noise reduction cylinder 1 in the left and right directions is preferably 1 to 1.5 times the width of the noise reduction channel 140.

[0038] The sound-absorbing materials filling the noise-reducing cavity 130 and the noise-reducing channel 140 are also different. A preferred embodiment of this application is as follows: Figure 1 As shown, the noise reduction cavity 130 is filled with a first sound-absorbing material 310, and the noise reduction channel 140 is filled with a second sound-absorbing material 320. The density of the first sound-absorbing material 310 is greater than the density of the second sound-absorbing material 320.

[0039] It should be understood that the first sound-absorbing material 310 and the second sound-absorbing material 320 differ in function. The first sound-absorbing material 310 weakens sound waves, while the second sound-absorbing material 320 weakens both airflow velocity and sound waves. Furthermore, the first and second sound-absorbing materials 310 and 320 differ in density. The second sound-absorbing material 320 fills the interior of the noise reduction channel 140. If its density is too high, it will easily slide down and accumulate at the bottom of the noise reduction channel 140, significantly weakening the noise reduction effect. Therefore, the density of the second sound-absorbing material 320 cannot be too high; a lighter sound-absorbing material should be used. However, if the overall device is too light, it is prone to excessive vibration due to airflow. Therefore, the density of the first sound-absorbing material 310 inside the noise reduction cavity 130 can be increased to achieve a balanced overall weight.

[0040] It should also be noted that the airflow velocity is high and the impact force is large within the noise reduction channel 140. Therefore, the second sound-absorbing material 320 should also have high strength and good wear resistance. Considering the economic effect, the second sound-absorbing material 320 is preferably made of polyethylene rolled material. Water vapor generated by the airflow in the vent pipe may seriously affect the noise reduction performance of the second sound-absorbing material 320. Polyethylene rolled material has excellent water resistance and will not cause performance degradation due to water vapor. In addition, it has strong corrosion resistance, which improves the durability of the noise reduction device. There is no airflow in the noise reduction cavity 130. Its main function is to weaken and dissipate sound waves. Therefore, the first sound-absorbing material 310 filled in the noise reduction cavity 130 focuses more on high porosity and high sound absorption coefficient, and preferably uses a porous metal material.

[0041] A preferred embodiment of this application, such as Figure 1 As shown, a first noise reduction plate 150 is provided at the entrance of the noise reduction channel 140, and a second noise reduction plate 160 is provided at the exit of the noise reduction channel 140; both the first noise reduction plate 150 and the second noise reduction plate 160 are provided with multiple through holes.

[0042] It should be understood that reducing airflow eddies is a very effective noise reduction method for noise reduction treatment of venting pipe airflow. When the airflow first enters the noise reduction cylinder 1, it is high-speed and highly turbulent, easily generating complex eddy zones that cause huge noise. Furthermore, this airflow can cause erosion and wear on the noise reduction channel 140, and the uneven airflow prevents the second silencing material 320 from being used evenly, further reducing the overall noise reduction efficiency. Therefore, a first noise reduction plate 150 with multiple through holes is installed at the inlet of the noise reduction channel 140 to divide a concentrated airflow into multiple smaller airflows. When the gas passes through the through holes on the first noise reduction plate 150, friction and throttling effects occur, consuming some of the airflow's kinetic energy and reducing its speed. Moreover, when the divided airflows converge, the velocity and pressure distribution become more uniform, ensuring the subsequent attenuation effect of the second silencing material 320 on the airflow.

[0043] It should also be noted that the second noise reduction plate 160 with multiple through holes at the outlet of the noise reduction channel 140 can ensure that the second sound-absorbing material 320 is not carried out by the airflow. If a loose, porous sound-absorbing material is used, the airflow will easily blow the sound-absorbing material out, which will lead to a continuous decrease in the noise reduction effect. Therefore, the second noise reduction plate 160 with multiple through holes can restrict the second sound-absorbing material 320 to remain in the noise reduction channel 140 while the airflow passes through. After the airflow passes through the noise reduction channel 140, uneven airflow or new vortices may still be generated at the outlet, which may lead to regenerated vortex noise. Similar to the first noise reduction plate 150 at the inlet, the airflow is dispersed by multiple through holes, making the outlet airflow more stable and uniform, thereby effectively suppressing the generation of regenerated vortex noise.

[0044] Understandably, the first noise reduction plate 150 and the second noise reduction plate 160 can be made of copper porous plates. Copper porous plates can greatly extend their service life, reduce maintenance costs, and have a longer replacement cycle due to the dense protective film formed on their surface, which may be present during the release of water vapor, condensate and other chemical substances.

[0045] The connection quality of connecting pipe 2 also affects the noise reduction effect of the device. If there is air leakage or the air pressure is too high and the connection is not stable enough, the resonance noise will further increase. A preferred embodiment of this application is as follows... Figure 1-3 As shown, the connecting pipe 2 includes a first section 210 and a second section 220; the first section 210 is threaded into the vent pipe; the second section 220 is engaged with the vent pipe through a locking structure 230; based on the outlet pressure of the vent pipe, the locking structure 230 locks or releases the second section 220 from the vent pipe.

[0046] It should be understood that the first segment 210 is located above the second segment 220 and is threaded into the vent pipe, forming the first connection between the connecting pipe 2 and the vent pipe. The second segment 220 is connected to the vent pipe via the locking structure 230, and can automatically lock or disengage from the vent pipe based on the outlet pressure of the vent pipe, forming the second connection between the connecting pipe 2 and the vent pipe. When there is airflow pressure at the outlet of the vent pipe, the locking structure 230 locks the second segment 220 to the vent pipe, meaning it automatically locks during operation. When there is no airflow pressure at the outlet of the vent pipe, it will disengage, meaning that the locking structure 230 will not affect the installation and disassembly of the noise reduction device during installation and disassembly.

[0047] Understandably, when installing the noise reduction device at the outlet of the vent pipe, the operator only needs to perform the threaded connection between the first section 210 and the vent pipe to complete the installation. The second section 220 is adaptively connected to the vent pipe through the locking structure 230. When the vent pipe is venting or closing, the locking structure 230 will automatically switch between locking and unlocking states.

[0048] It is also understandable that the threaded connection between the first section 210 and the vent pipe can be replaced by other fixed connection methods, such as bolt connection, flange connection, etc. Since the threaded connection is faster and has better sealing performance, the threaded connection between the first section 210 and the vent pipe is preferred in this embodiment.

[0049] The locking structure 230 needs to automatically change the locking effect under changes in air pressure. Therefore, this embodiment provides a locking structure 230 that can adapt to different air pressures to generate different locking forces.

[0050] A preferred embodiment of this application, such as Figure 2-3 As shown, the locking structure 230 includes an air passage 231, a reset component, and a slot 234; the two ends of the air passage 231 extend through the interior of the second section 220 and the connecting pipe 2; the slot 234 is disposed on the side wall of the vent pipe; the reset component is disposed at one end of the air passage 231 corresponding to the slot 234, and the reset component is adapted to extend out of the second section 220 or retract into the second section 220 under the action of air pressure in the air passage 231, thereby engaging or disengaging from the slot 234.

[0051] It should be understood that the air passage 231 runs through the interior of the second section 220 and the connecting pipe 2. Therefore, the air passage 231 is located inside the pipe wall of the connecting pipe 2. As a preferred option, a two-section air passage 231 can be used, one section being horizontal and the other being vertical. The airflow enters from the lower inlet of the connecting pipe 2, and due to the gradually expanding structure adopted at the end of the connecting pipe 2, the airflow velocity decreases rapidly and the air pressure increases. Furthermore, the airflow enters the air passage 231 through the hole at the top of the vertical section, and then pushes the reset component to extend out of the second section 220 and engage with the slot 234. After the reset component engages with the slot 234, the connecting pipe 2 and the vent pipe are tightly locked, and no relative displacement vibration can occur, which greatly reduces the resonance noise of the connecting pipe 2 and the vent pipe.

[0052] Understandably, the use of a gradually expanding structure at the end of the connecting pipe 2 can reduce the airflow velocity by several times, significantly reducing noise. Furthermore, due to the increased air pressure, the force pushing the reset component is greater, causing the reset component to engage more fully within the slot 234, resulting in a greater locking force and better locking effect for the locking structure 230.

[0053] It should also be noted that after the vent pipe is closed, the air pressure decreases to the initial state, and the reset component retracts back into the second section 220 due to its reset performance, disengaging from the slot 234. Thus, the locking structure 230 releases its locking function and will not affect the installation and disassembly of the noise reduction device.

[0054] The reset component must simultaneously meet the following conditions: it has a reset function, an engagement function, and a function to seal the airway 231.

[0055] A preferred embodiment of this application, such as Figure 2-3 As shown, the reset assembly includes an elastic element and a locking block 233. The locking block 233 is radially elastically and slidably mounted on the side of the second section 220 via the elastic element. The locking block 233 is adapted to extend out of the second section 220 or retract into the second section 220 under air pressure.

[0056] It should be understood that the locking block 233 must be made of a material with certain strength and sealing performance. Because the locking block 233 extends out of the second section 220 under air pressure and engages with the locking groove 234, and because the engaging action locks the connection between the connecting pipe 2 and the vent pipe to reduce resonance, the locking block 233 must have sufficient strength. If the strength is insufficient, the locking block 233 will be damaged during the vibration of the high-pressure airflow. The locking block 233 must also have good sealing performance. While sliding smoothly in the air passage 231, it should not allow gas to leak out from the second section 220. If the gas leaks, it will increase noise and reduce the air pressure, and the engaging effect between the locking block 233 and the locking groove 234 will also be weakened.

[0057] It should also be noted that the elastic element can be a sheet spring, spring 232, or other structures with elastic restoring effect. In this embodiment, spring 232 is preferred. When the vent pipe is not ventilated, the locking block 233 and spring 232 should be in their initial positions, with spring 232 maintaining its initial length and locking block 233 completely inside the second section 220. When the vent pipe is ventilated and the air pressure increases, locking block 233 extends out of the second section 220 under the action of air pressure and engages with the locking groove 234. At this time, spring 232 is extended by locking block 233. When the vent pipe is closed, the air pressure decreases, and locking block 233 is brought back into the second section 220 under the elastic restoring action of spring 232, disengaging from the engaged state.

[0058] It is understandable that the shape and size of the locking block 233 should be consistent with the size of the air passage 231 to ensure good sealing, and the height dimension of the locking groove 234 should be consistent with the height dimension of the locking block 233 to achieve a good locking effect.

[0059] The ease and effectiveness of connecting the reset element to the slot 234 affects the performance of the locking structure 230. A preferred embodiment of this application is as follows: Figure 1-3As shown, the number of air passages 231 and reset components are multiple and identical, and they are evenly spaced in the circumferential direction. The slots 234 are arranged in a ring on the side wall of the vent pipe.

[0060] It should be understood that the slot 234 is arranged in a ring shape on the wall of the vent pipe. Therefore, during the rotation of the second section 220 in relation to the threaded engagement with the vent pipe, regardless of the angle of rotation, the reset component can easily enter the slot 234, greatly improving the ease of assembly and fault tolerance of the locking structure 230. If the slot 234 is not arranged in a ring shape but rather at intervals, it is very likely that due to manufacturing errors, the reset component will not be able to extend properly from the second section 220 and engage with the slot 234, potentially leading to problems such as alignment difficulties and uneven engagement.

[0061] It should also be noted that the number of air passages 231 and reset components is the same. Because they correspond one-to-one, the air passages 231 and reset components are arranged at equal intervals along the circumference, which makes the force more uniform and prevents eccentric force in a certain direction.

[0062] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A copper venting assembly for reducing noise, characterized in that: The device includes a noise-reducing cylinder with an inlet and an outlet. The interior of the noise-reducing cylinder is filled with sound-absorbing material to form a noise-reducing zone. The noise-reducing cylinder is connected to a vent pipe via a connecting pipe at the inlet, so that the airflow from the vent pipe passes through the noise-reducing zone and is discharged through the outlet of the noise-reducing cylinder. The connecting pipe and the vent pipe are connected by a locking structure, which is adapted to adjust the locking force between the connecting pipe and the vent pipe according to the outlet pressure of the vent pipe.

2. The copper venting assembly for reducing noise as described in claim 1, characterized in that: The noise reduction cylinder includes an outer shell and an inner sleeve; the outer shell and the inner sleeve form a noise reduction cavity, and the inner sleeve forms a noise reduction channel; sound-absorbing material is filled in the noise reduction cavity and the noise reduction channel. The noise reduction channel connects the inlet and outlet of the noise reduction cylinder.

3. The copper venting assembly for reducing noise as described in claim 2, characterized in that: The noise reduction channel is S-shaped.

4. The copper venting assembly for reducing noise as described in claim 3, characterized in that: The noise reduction channel bends left and right along the centerline of the noise reduction cylinder, and the maximum deviation of the centerline of the noise reduction channel from the centerline of the noise reduction cylinder in the left and right directions is 1 to 1.5 times the width of the noise reduction channel.

5. The copper venting assembly for reducing noise as described in claim 2, characterized in that: The noise reduction cavity is filled with a first sound-absorbing material, and the noise reduction channel is filled with a second sound-absorbing material. The density of the first sound-absorbing material is greater than the density of the second sound-absorbing material.

6. The copper venting assembly for reducing noise as described in claim 2, characterized in that: A first noise reduction plate is provided at the entrance of the noise reduction channel, and a second noise reduction plate is provided at the exit of the noise reduction channel; both the first noise reduction plate and the second noise reduction plate are provided with multiple through holes.

7. The copper venting assembly for reducing noise as described in any one of claims 1-6, characterized in that: The connecting pipe includes a first section and a second section; the first section is threaded into the vent pipe; the second section is engaged with the vent pipe through the locking structure; based on the outlet pressure of the vent pipe, the locking structure locks or disengages the second section from the vent pipe.

8. The noise-reducing copper venting assembly as described in claim 7, characterized in that: The locking structure includes an air passage, a reset component, and a slot; both ends of the air passage extend through the interior of the second section and the connecting pipe; the slot is disposed on the side wall of the venting pipe; the reset component is disposed at one end of the air passage corresponding to the slot, and the reset component is adapted to extend out of the second section or retract into the second section under the air pressure of the air passage, thereby engaging or disengaging from the slot.

9. The copper venting assembly for reducing noise as described in claim 8, characterized in that: The reset assembly includes an elastic element and a locking block. The locking block is radially elastically and slidably mounted on the side of the second section via the elastic element. The locking block is adapted to extend out of the second section or retract into the second section under air pressure.

10. The noise-reducing copper venting assembly as described in claim 8, characterized in that: The number of air passages and reset components are multiple and identical, and they are evenly spaced in the circumferential direction. The slots are arranged in a ring on the side wall of the venting pipe.

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