Silencing device and fabric treatment equipment

Abstract

The invention relates to the technical field of silencing equipment, in particular to a silencing device and fabric treatment equipment. The noise elimination device comprises a main pipeline noise elimination part and a tail end noise elimination part, the main pipeline noise elimination part is arranged on the fabric processing barrel in a sleeving mode and wraps the driving motor in the direction from the barrel bottom to the barrel opening of the fabric processing barrel, and a protruding end is formed in the position, at the driving motor, of the main pipeline noise elimination part. The main pipeline silencing part is used for conducting noise reduction treatment on noise generated during operation of the fabric treatment barrel. The tail end noise elimination piece is connected with the protruding end in a screwing mode, and the tail end noise elimination piece is used for conducting noise reduction and sound absorption treatment on noise generated when the driving motor operates. The main pipeline silencing part and the tail end silencing part are used for conducting noise reduction and sound absorption treatment on the fabric treatment barrel and the driving motor correspondingly, noise generated when the fabric treatment equipment operates is controlled from the source, and the use experience feeling of a user on the fabric treatment equipment is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of silencing equipment, and in particular to a silencing device and fabric processing equipment. Background Art

[0002] The popularity of drum washing machines has brought great convenience to people in their daily lives. After a tiring day of work, they can free their hands, making washing machines an indispensable part of people's lives. With the convenience, the vibration and noise problems generated by the washing machine during operation also come along. In the mature field of vibration and noise reduction of washing machines, the vibration reduction of washing machines mainly focuses on the design of the motor or drum. For example, for the vibration reduction of the drum parts or the motor, vibration dampers can be used for vibration reduction, but this requires the special design and installation of vibration dampers. Summary of the invention

[0003] In view of this, the present invention provides a silencer and a fabric processing device, which solve the problem that the user's experience is low due to the noise generated during the operation of the existing fabric processing device.

[0004] A first aspect of an embodiment of the present invention provides a muffler device that can be applied to a fabric processing device, wherein the fabric processing device includes a fabric processing drum and a driving motor for driving the fabric processing drum, wherein the driving motor is located at the rear side of the fabric processing drum, and the muffler device includes:

[0005] A main pipe muffler is arranged along the direction from the bottom of the fabric treatment cylinder to the cylinder mouth, the main pipe muffler is used to sleeve the fabric treatment cylinder and wrap the driving motor, the main pipe muffler is formed with a protruding end at the driving motor position, the main pipe muffler is used to reduce the noise of the fabric treatment cylinder when the fabric treatment cylinder is running, wherein the end of the main pipe muffler away from the terminal muffler is used to be connected to the fabric treatment cylinder through a snap fastener;

[0006] A terminal muffler, the terminal muffler is connected to the protruding end, the terminal muffler forms a muffler cavity, the muffler cavity is communicated with the main pipe muffler, a plurality of sound absorbing rings are arranged in the muffler cavity at intervals along the axial direction of the muffler cavity, each of the sound absorbing rings has a sound absorbing port, the sound absorbing ports of two adjacent sound absorbing rings have different diameters, and the sound absorbing port of the sound absorbing ring close to the drive motor has the largest diameter;

[0007] Wherein, the terminal silencer is configured to reduce and absorb noise when the driving motor is running.

[0008] In some embodiments, the terminal muffler is a columnar structure, and the terminal muffler includes a connecting end and a muffler end;

[0009] The connecting end is detachably connected to the protruding end;

[0010] The muffler end is connected to the connecting end, and the muffler end adopts a knob-type telescopic structure to form a muffler structure with adjustable length.

[0011] In some embodiments, the muffler end includes a circular tube body and a plurality of the sound absorbing rings disposed in the circular tube body and spaced apart, the interior of the circular tube body is configured as the muffler cavity, and the plurality of the sound absorbing rings are spaced apart in the circular tube body;

[0012] Along the bottom of the fabric processing cylinder and pointing toward the cylinder opening, the diameters of the sound absorbing openings of the plurality of sound absorbing rings increase in a step-like manner.

[0013] In some embodiments, the diameter of the sound absorption opening on any of the sound absorption rings is negatively correlated with the distance from the sound absorption ring to the connection end.

[0014] In some embodiments, the diameter of the terminal muffler is defined as R, the distance from any of the sound absorbing rings to the connection end is x, and the total length of the terminal muffler is L, then the diameter r of the sound absorbing port on the sound absorbing ring at the distance x is the difference between the diameter R of the terminal muffler and the first product value;

[0015] The first product value is the product of the distance coefficient K and the distance x, and the distance coefficient K is the quotient of the diameter R of the terminal muffler and the total length L of the terminal muffler.

[0016] In some embodiments, the total length L of the terminal silencer is in the range of 5 mm ≤ L ≤ 220 mm.

[0017] In some embodiments, a plurality of dampers are provided on the bottom side of the fabric treatment cylinder;

[0018] The muffler device also includes a first pipe muffler;

[0019] The first branch pipe silencer is connected to the main pipe silencer in a knob manner, and there are multiple first branch pipe silencers, which are covered on the outer surfaces of the multiple dampers in a one-to-one correspondence;

[0020] Wherein, a sealing strip is provided at the connection position between the first pipe silencer and the damper.

[0021] In some embodiments, an elastic member is disposed on the top side of the fabric treatment cylinder;

[0022] The muffler device also includes a second pipe muffler;

[0023] The second branch pipe silencer is connected to the main pipe silencer in a knob manner, and the second branch pipe silencer is covered on the outer surface of the elastic member.

[0024] In some embodiments, one end of the main pipe muffler away from the terminal muffler is used to be connected to the fabric processing cylinder through a snap-fit ​​member.

[0025] A second aspect of the present invention provides a fabric processing device, comprising a fabric processing drum and a muffler as described in the first aspect.

[0026] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0027] In the silencer device and fabric processing equipment of the present invention, the silencer device includes a main pipeline silencer and a terminal silencer along the direction from the bottom of the fabric processing cylinder to the cylinder mouth, the main pipeline silencer is sleeved on the fabric processing cylinder and wraps the driving motor, the main pipeline silencer is formed with a protruding end at the position of the driving motor, and the main pipeline silencer is used to reduce the noise during the operation of the fabric processing cylinder; the terminal silencer is detachably connected to the protruding end, a silencer cavity connected to the main pipeline silencer is formed in the terminal silencer, and a plurality of spaced-apart sound absorbing rings are arranged in the silencer cavity, each sound absorbing ring has a sound absorbing port, the sound absorbing ports of two adjacent sound absorbing rings have different diameters, and the sound absorbing port of the sound absorbing ring close to the driving motor has the largest diameter, and the terminal silencer is configured to reduce and absorb the noise during the operation of the driving motor. In the present invention, multiple sound-absorbing rings in the main pipe silencer and the terminal silencer are used to respectively perform noise reduction and sound absorption treatment on the fabric processing cylinder and the driving motor, thereby controlling the noise generated by the fabric processing equipment during operation from the source, and effectively improving the user experience of the fabric processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0029] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0030] Figure 1 is a schematic structural diagram of a muffler device installed on a fabric processing device according to an embodiment of the present invention;

[0031] Figure 2 is a schematic structural diagram of a terminal silencer in a silencer device according to an embodiment of the present invention;

[0032] Figure 3 yes Figure 2 Sectional view at the AA position;

[0033] Figure 4 yes Figure 2 Front view of.

[0034] Reference numerals:

[0035] 10. fabric processing device; 11. fabric processing cylinder; 111. protruding end; 112. elastic member; 12. driving motor; 13. damper;

[0036] 100, silencer; 110, main pipe silencer; 120, terminal silencer; 121, connection end; 122, silencer end; 12a, circular tube; 12b, sound absorption ring; 12c, sound absorption port; 130, first pipe silencer; 140, second pipe silencer; 150, snap-fit ​​part. DETAILED DESCRIPTION

[0037] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0039] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0040] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0041] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0042] like Figures 1 to 4 As shown, an exemplary embodiment of the present invention provides a muffler 100 , which can be applied to a fabric processing device 10 .

[0043] The fabric processing device 10 may include but is not limited to a washing machine, and the washing machine may include but is not limited to a washing and care machine, a washing and drying machine, etc. For example, the washing machine may be a drum washing machine or a pulsator washing machine with a drying or washing and care function, and of course, the washing machine may also be other types of fully automatic washing machines. In this example and the following examples, the fabric processing device is described by taking a drum washing machine as an example.

[0044] The fabric treating device 10 includes a fabric treating drum 11 and a driving motor 12 . The driving motor 12 is used to drive the fabric treating drum 11 to rotate in the fabric treating device 10 .

[0045] The driving motor 12 is located at the rear side of the fabric processing cylinder 11 , that is, the driving motor 12 may protrude from the bottom of the fabric processing cylinder 11 .

[0046] The silencer device 100 includes a main pipe silencer 110 and a terminal silencer 120 .

[0047] The direction from the bottom of the fabric treatment cylinder 11 to the cylinder mouth is defined as the first direction X, and the main pipe muffler 110 is sleeved on the fabric treatment cylinder 11 along the first direction X, and wrapped on the driving motor 12. This sleeve arrangement can effectively cover the surface of the fabric treatment cylinder 11, thereby maximizing its noise reduction function.

[0048] On the other hand, the drive motor 12 generates some noise during operation. By wrapping the drive motor 12 with the main pipe silencer 110, the noise generated by the drive motor 12 in its axial direction can be directly blocked and absorbed, thereby reducing the noise from propagating outward in a direction perpendicular to the first direction X.

[0049] It should be noted that the bottom of the main pipe muffler 110 is completely wrapped on the outer surface of the drive motor 12, and along the first direction X, the main pipe muffler 110 is formed with a protruding end 111 at the rear side wall end of the drive motor 12. The formation of the protruding end 111 can better adapt to the shape and structural characteristics of the drive motor 12.

[0050] Since the volume and shape of the driving motor 12 are different from those of the fabric processing cylinder 11, the protruding end 111 formed at its location can ensure that the main pipe silencer 110 fits tightly with the driving motor, and no dead corners of noise reduction will occur due to shape mismatch, thereby ensuring that efficient noise reduction processing can be achieved around the driving motor 12.

[0051] The main pipe muffler 110 is used to reduce the noise during the operation of the fabric treatment drum 11. During the operation of the fabric treatment drum 11, noises of different frequencies and intensities are generated due to various factors such as the movement of the internal mechanical structure and the friction between the fabric and the drum wall. The main pipe muffler 110 can effectively absorb, reflect and scatter these noises through its own material properties and structural design, thereby reducing the noise intensity propagating outward from the fabric treatment drum 11.

[0052] like Figures 1 to 4 As shown, in some embodiments, one end of the main pipe muffler 110 away from the terminal muffler 120 is connected to the fabric processing cylinder 11 through a snap-fit ​​component 150 .

[0053] The buckle 150 may be a buckle or buckle, etc. For example, a 5 mm groove is provided at the connection position between the fabric treatment cylinder 11 and the top of the main pipe muffler 110, and the main pipe muffler 110 is fixed to the fabric treatment cylinder 11 in a buckle self-locking manner, specifically, it can be provided on the outer wall of the outer cylinder of the fabric treatment cylinder 11.

[0054] For the connection between the main pipe muffler 110 and the fabric treatment tube 11, the connection mode of the buckle 150 ensures the tightness between the two. During the operation of the fabric treatment tube 11, noise will be generated, and the function of the main pipe muffler 110 is to reduce the propagation of such noise. The tight connection of the buckle 150 can prevent the noise sound waves from leaking out from the connection part between the main pipe muffler 110 and the fabric treatment tube 11, thereby ensuring the integrity of the muffler effect.

[0055] At the same time, the snap connection form of the snap member 150 also facilitates subsequent maintenance and repair, greatly reducing the difficulty and cost of maintaining the fabric processing device 10.

[0056] like Figure 1 As shown in, in one example, the main pipe silencer 110 is shaped like a pipe, such as a cylindrical shell adapted to the outer surface of the fabric treatment cylinder 11. The length a of the cylindrical shell is 460 mm, the distance d between the shell ends is 30 mm, and the spacing a between the cylindrical shell and the fabric treatment cylinder 11 is more than 5 mm. In order to improve the noise reduction effect, the distance c between the added cylindrical shell and the fabric treatment cylinder 11 is as large as possible under the condition that the internal space of the fabric treatment device 10 is sufficient. The cylindrical shell can be made of a 5 mm thick aluminum alloy plate to form a circular pipe shell, forming a completely closed model.

[0057] The terminal muffler 120 is detachably connected to the protruding end of the main pipe muffler 110, and the two can be connected in a knob manner. This connection method makes the entire muffler device 100 form an organic whole. In addition, the knob connection can maintain good performance after multiple disassembly and reconnection, effectively reducing the need to replace new connectors and reducing maintenance costs. At the same time, it can also make the assembly process of the terminal muffler 120 and the main pipe muffler 110 simpler and faster, without the need for additional tools or complicated assembly steps.

[0058] On the other hand, the design of the knob connection enables the connection position between the terminal muffler 120 and the main pipe muffler 110 to effectively absorb the mechanical vibration and impact of the fabric processing device 10.

[0059] The protruding end 111 serves as the part that tightly combines the main pipe silencer 110 with the drive motor 12. The terminal silencer 120 is connected to the protruding end 111 to directly process the noise during the operation of the drive motor 12, thereby achieving seamless connection of the noise conduction path from the main pipe silencer 110 to the terminal silencer 120, and avoiding noise leakage at the connection part.

[0060] The terminal silencer 120 can be used to reduce and absorb the noise generated by the driving motor 12 during operation. The driving motor 12 will generate noise of specific frequency and intensity during operation. The terminal silencer 120 can use special sound-absorbing materials and structural designs to absorb these noises in a targeted manner. For example, the terminal silencer 120 uses porous sound-absorbing materials. The small holes in these materials can allow noise waves to enter and continuously reflect and rub inside, converting sound energy into heat energy, thereby achieving the purpose of reducing noise. Combined with the function of the main pipeline silencer 110, the driving motor 12, the main noise source in the fabric processing equipment 10, can be subjected to all-round noise reduction treatment from different aspects, thereby improving the operating quietness of the entire fabric processing equipment.

[0061] like Figures 2 to 4 As shown, in one example, the end silencer 120 can be designed to be a structural form similar to an acoustic black hole model. An acoustic black hole (ABH) is a specially designed structure that can efficiently absorb sound wave energy, similar to how a black hole in astronomy absorbs matter and light. An acoustic black hole model is usually composed of a structure with a specific geometric shape. When sound waves enter the ABH, their propagation speed will gradually decrease, resulting in a shortening of the wavelength, and this wavelength compression phenomenon will continue until the wave speed drops to zero, making it impossible for the incident wave to propagate to the end of the structure. Once the sound wave enters the ABH, it will be trapped and completely absorbed without any reflection, and the sound energy will eventually be concentrated and dissipated to achieve the effect of absorbing noise.

[0062] A sound-absorbing chamber connected to the main pipe sound-absorbing chamber 110 is formed in the terminal sound-absorbing member 120. A plurality of sound-absorbing rings 12b are arranged at intervals along the axial direction, i.e., the first direction X, in the sound-absorbing chamber. Each sound-absorbing ring 12b has a sound-absorbing port 12c. When the noise sound wave propagates to the vicinity of the sound-absorbing ring 12b, the sound-absorbing port 12c can guide the noise sound wave into the interior of the sound-absorbing ring 12b. The plurality of sound-absorbing rings 12b arranged at intervals can make the noise sound wave experience multiple reflections and refractions when propagating in the sound-absorbing chamber, thereby increasing the chance of the noise sound wave interacting with the sound-absorbing ring 12b, thereby improving the sound-absorbing effect.

[0063] The diameter of the sound absorption opening 12c of the sound absorption ring 12b close to the driving motor 12 is the largest, so that when the driving motor 12 rotates, the noise generated by the driving motor 12 can be effectively transmitted to the muffler cavity.

[0064] It should be noted that the sound absorption openings 12c of two adjacent sound absorption rings 12b have different diameters, that is, along the direction away from the first direction X, the edges of the plurality of sound absorption openings 12c may present various shapes, such as wavy, undulating, tapered, arc-shaped, etc.

[0065] In one example, the diameter of the sound absorption port 12c is designed to increase in a step-like manner in a direction away from the first direction X, wherein as the noise sound wave propagates in a direction away from the first direction X, the energy and frequency of the noise will change, for example, energy dispersion, frequency reduction, etc. may occur. The diameter of the sound absorption port 12c gradually decreases to adapt to such changes. A larger sound absorption port 12c can capture more sound waves after energy dispersion, and has a better absorption effect on low-frequency noise. This design of the sound absorption port 12c with a step-like increase in diameter in a direction away from the first direction X can carry out targeted treatment of noises of different characteristics in different areas, thereby improving the noise reduction efficiency and effect of the entire noise reduction end 122 and even the entire noise reduction device 100.

[0066] In a specific example, the terminal silencer 120 is a columnar structure, the columnar structure is arranged in a relatively regular manner in space, and is convenient for installation and positioning in the fabric processing device 10. The surface area to volume ratio of the columnar structure is relatively moderate, and it can effectively utilize the space while ensuring a certain silencer effect. At the same time, the columnar structure has good stability. During the operation of the fabric processing device 10, it may be affected by external forces such as vibration and impact. The terminal silencer 120 of the columnar structure can better withstand these external forces and maintain its own structural integrity, thereby ensuring the stable performance of its silencer function.

[0067] The terminal muffler 120 includes a connecting end 121 and a muffler end 122 .

[0068] The connection end 121 is detachably connected to the protruding end 111. The detachable connection mode provides great convenience for the maintenance, overhaul and replacement of the terminal muffler 120 and the main pipe muffler 110. In actual use, if the terminal muffler 120 is damaged or needs to be upgraded, the detachable connection end 121 allows the operator to easily remove it from the protruding end 111 without large-scale disassembly of the entire main pipe muffler 110.

[0069] The muffler end 122 is connected to the connection end 121, and the muffler end 122 adopts a knob-type telescopic structure to form a muffler structure with adjustable length. This adjustable structure can be applied to different noise sources and propagation environments, and provides an effective solution. In different fabric processing devices 10, the propagation path and intensity distribution of noise may be different. The length of the muffler end 122 can be adjusted by a knob to optimize the muffler effect according to the specific situation.

[0070] The change in the length of the muffler end 122 can affect the reflection, absorption and interference of sound waves. When the muffler end 122 is extended, the number of reflections of the sound waves inside the muffler will increase, thereby increasing the loss of sound wave energy. When the muffler end 122 is shortened, the interference pattern of the sound waves can be changed, and noises of different frequencies can be effectively suppressed. This adjustable structure enables the terminal muffler 120 to adapt to a wider range of noise frequencies, thereby improving the adaptability and effectiveness of the entire muffler device 100.

[0071] like Figures 2 to 4 As shown, the muffler end 122 includes a circular tube body 12a and a plurality of sound absorbing rings 12b arranged at intervals in the circular tube body 12a, and each sound absorbing ring 12b has a sound absorbing port 12c. The circular tube body 12a serves as the main frame of the muffler end 122, and provides a space for accommodating and supporting the plurality of sound absorbing rings 12b, so that the muffler end 122 forms a relatively closed space with a specific acoustic structure, which is conducive to noise processing.

[0072] Multiple sound absorbing rings 12b are arranged at intervals in the circular tube body 12a. When noise waves propagate near the sound absorbing rings 12b, the sound absorption ports 12c can guide the noise waves into the interior of the sound absorbing rings 12b. The multiple sound absorbing rings 12b arranged at intervals can make the noise waves experience multiple reflections and refractions when propagating in the circular tube body 12a, thereby increasing the chance of interaction between the noise waves and the sound absorbing rings 12b, thereby improving the sound elimination effect.

[0073] Along the first direction X, the diameters of the sound absorption openings 12c of the plurality of sound absorption rings 12b increase in a step-like manner. And the diameter of the sound absorption opening 12c on any sound absorption ring 12b is negatively correlated with the distance from the sound absorption ring 12b to the connection end 121. In other words, the closer the distance to the connection end 121, the larger the diameter of the sound absorption opening 12c.

[0074] As the noise sound waves propagate in a direction away from the first direction X, the energy and frequency of the noise will change, for example, energy dispersion and frequency reduction may occur. The diameter of the sound absorption port 12c gradually decreases to adapt to such changes. A larger sound absorption port 12c can capture more sound waves after energy dispersion and has a better absorption effect on low-frequency noise. This design in which the diameter of the sound absorption port 12c increases in a step-like manner in a direction away from the first direction X can carry out targeted treatment of noises of different characteristics in different areas, thereby improving the sound elimination efficiency and effect of the entire sound elimination end 122 and even the entire sound elimination device 100.

[0075] like Figures 2 to 4As shown, the diameter of the terminal muffler 120 is defined as R, that is, the diameter of the circular tube 12a is R, the distance from any sound absorbing ring 12b to the connecting end 121 is x, and the total length of the terminal muffler 120 is L. Then, the diameter r of the sound absorbing port 12c on the sound absorbing ring 12b at a distance x is the difference between the diameter R of the terminal muffler 120 and the first product value, and the first product value is the product of the distance coefficient K and the distance x.

[0076] In one example, the total length L of the terminal muffler 120 is in the range of 5 mm ≤ L ≤ 220 mm, so that the terminal muffler 120 can be suitable for fabric processing drums 11 and driving motors 12 of multiple specifications.

[0077] In a preferred example, the total length L of the terminal silencer 120 is in the range of 7mm≤L≤200mm, which is formed based on the synergistic effect of space and silencer, that is, balancing the combination of installation space and silencer effect.

[0078] The distance coefficient K is the quotient of the diameter R of the terminal muffler 120 and the total length K of the terminal muffler 120 .

[0079] That is to say, Among them, K=R / L.

[0080] Based on the above calculation formula of r(x), the distance between two adjacent sound absorbing rings 12b can be flexibly designed according to different specifications of the fabric processing cylinder 11 and the driving motor 12.

[0081] In a preferred example, the thickness of the circular tube 12a of the terminal silencer 120 is 5 mm, the spacing between two adjacent sound absorbing rings 12b is 6 mm, and multiple sound absorbing rings 12b are arranged at equal intervals. The diameter of the circular tube 12a is 50 mm. Based on this, in this example, the acoustic black hole model formed by the terminal silencer 120 is a knob-type structure, and the length of the terminal silencer 120 can be adjusted to adapt to different noise reduction scenarios, so as to achieve a better noise reduction effect.

[0082] like Figure 2 As shown, in one example, the length of the connection end 121 is 5 mm, and in order to facilitate the detachable connection between the connection end 121 and the protruding end 111, a thread 1211 is provided on the inner side of the connection end 121. That is, the connection end 121 and the protruding end 111 can be connected by threads, thereby improving the assembly efficiency between the terminal muffler 120 and the main pipe muffler 110, that is, facilitating the quick connection or disassembly between the terminal muffler 120 and the main pipe muffler 110.

[0083] like Figure 1As shown, in some embodiments, a plurality of dampers 13 are provided on the bottom side of the fabric processing drum 11. The dampers 13 are mainly used to reduce or eliminate the vibration generated during the operation of the fabric processing drum 11. During the operation of the fabric processing drum 11, the operation of the mechanical parts in the drum, such as the drive motor 12, the transmission belt, etc., will generate vibrations. If these vibrations are not controlled, they will affect the processing quality of the fabric and even cause damage to the equipment itself. The dampers 13 can effectively reduce the amplitude of vibrations by absorbing and dissipating energy, improve the stability and reliability of the operation of the fabric processing drum 11, and ensure that the fabric processing drum 11 operates in a stable state, thereby improving production efficiency and product quality.

[0084] The silencer 100 further includes a first branch pipe silencer 130. The first branch pipe silencer 130 is connected to the main pipe silencer 110 in a knob manner. This connection method allows the first branch pipe silencer 130 and the main pipe silencer 110 to form an organic whole. In addition, the knob connection can maintain good performance after multiple disassembly and reconnection, effectively reducing the need to replace a new connector and reducing maintenance costs. At the same time, it can also make the assembly process of the first branch pipe silencer 130 and the main pipe silencer 110 simpler and faster, without the need for additional tools or complicated assembly steps.

[0085] On the other hand, the design of the knob connection enables the connection position between the first branch pipe silencer 130 and the main pipe silencer 110 to effectively absorb the mechanical vibration and impact of the fabric processing device 10.

[0086] There are multiple first pipe silencers 130, and the multiple first pipe silencers 130 are coated on the outer surfaces of the multiple dampers 13 in a one-to-one correspondence. This coating structural design can not only further reduce the noise generated by the damper 13 during operation, but also protect the damper 13 from the influence of the external environment. For example, in the working environment of the fabric processing device 10, the coated first pipe silencer 130 can prevent dust, moisture, etc. from corroding the damper 13, thereby extending the service life of the damper 13.

[0087] A sealing strip is provided at the connection position between the first pipe muffler 130 and the damper 13 to ensure the sealing performance at the connection position between the first pipe muffler 130 and the damper 13. At the same time, the sealing strip can fill the tiny gaps at the connection to prevent sound waves from propagating through these gaps, thereby improving the muffler effect. In addition, the sealing strip can also play a buffering role, reduce the wear of the connection, and improve the stability and durability of the entire muffler device 100.

[0088] It should be noted that the length and diameter of the pipe of the first pipe silencer 130 can be different so as to effectively silence noise in different frequency ranges. At the same time, the resonance cavity and airflow guide structure of the first pipe silencer 130 can also be flexibly set according to the shape or structure of the damper 13. For example, the resonance cavity of the first pipe silencer 130 is designed to be a structure positively correlated with the length of the damper 13 to absorb noise sound waves of a specific frequency.

[0089] The airflow guiding structure of the first duct silencer 130 can be flexibly designed through the shapes of the inlet and outlet of the first duct silencer 130 to guide the airflow more smoothly, so that the noise can be effectively reduced within a wider frequency range.

[0090] Among them, the first pipe silencer 130 needs to be wrapped in an expansion cavity silencer structure with a sudden interface change during processing, so that it will not affect the vibration reduction system of the fabric treatment tube 11. In addition, the radius size of the multiple expansion cavity silencer structures can be adjusted and fixed according to the size of the damper 13. Since the bottom of the damper 13 is relatively thin, a sealing strip (such as a rubber sealing strip) is used here for sealing to prevent noise leakage, improve the detachability of the entire shell, and make the entire noise reduction system reusable.

[0091] It should be noted that the expansion chamber type silencer structure is a device used to reduce aerodynamic noise. It changes the airflow path by designing one or more expansion chambers, so that sound waves reflect and interfere when passing through these chambers, thereby achieving the purpose of reducing noise. The working principle of the expansion chamber type silencer structure includes the following aspects: (1) Sound wave reflection: When the sound wave enters the expansion chamber, it will encounter the cavity wall and produce multiple reflections. Part of the sound energy is absorbed by the cavity wall, reducing the transmitted noise. (2) Sound wave interference: When sound waves of different path lengths meet in the expansion chamber, they will interfere. Sound waves of certain frequencies will cancel each other out due to their opposite phases, further reducing noise.

[0092] like Figures 1 to 4 As shown, in some embodiments, an elastic member 112 is disposed on the top side of the fabric treatment cylinder 11. The elastic member 112 may be a spring.

[0093] The silencer 100 further includes a second branch pipe silencer 140. The second branch pipe silencer 140 is connected to the main pipe silencer 110 in a knob manner. This connection method allows the second branch pipe silencer 140 and the main pipe silencer 110 to form an organic whole. In addition, the knob connection can maintain good performance after multiple disassembly and reconnection, effectively reducing the need to replace a new connector and reducing maintenance costs. At the same time, it can also make the assembly process of the second branch pipe silencer 140 and the main pipe silencer 110 simpler and faster, without the need for additional tools or complicated assembly steps.

[0094] On the other hand, the design of the knob connection enables the connection position between the second branch pipe silencer 140 and the main pipe silencer 110 to effectively absorb the mechanical vibration and impact of the fabric processing device 10 .

[0095] The second pipe silencer 140 is coated on the outer surface of the spring. On the one hand, the coated structure can effectively suppress the noise generated by the spring during operation. In the process of buffering and adapting to size changes, the spring's own expansion and deformation may generate certain noise. The second pipe silencer 140 can absorb and block the noise through the coating, reducing the spread of noise to the surrounding environment.

[0096] On the other hand, the wrapped structure also provides a certain degree of protection for the spring. For example, it prevents the spring from being corroded by external factors such as dust and moisture, and prolongs the service life of the spring. At the same time, in some unexpected collisions or frictions that the fabric processing device 10 may suffer, the wrapped second pipe silencer 140 can also provide a certain degree of physical protection for the spring, ensuring that the spring can continue to perform its function in the fabric processing cylinder 11.

[0097] like Figure 1 As shown, an exemplary embodiment of the present invention provides a fabric treating device 10, which includes a fabric treating drum 11 and a muffler device 100 as described in any of the above embodiments.

[0098] In this example, the main pipe silencer 110 and the terminal silencer 120 are used to reduce and absorb noise on the fabric processing cylinder 11 and the driving motor 12, respectively. At the same time, in view of the noise of different frequency bands generated by the fabric processing cylinder 11 during operation, the damper 13 on the fabric processing cylinder 11 is coated with a first pipe silencer 130, and the elastic member 112 is coated with a second pipe silencer 140, wherein the terminal silencer 120 is a silencer structure of an acoustic black hole model, so that the noise generated by the fabric processing device 10 during operation can be controlled at the source, effectively improving the user's experience of the fabric processing device, and effectively improving the sound quality characteristics and comfort of the fabric processing device 10. The above-mentioned silencer 100 has a simple structure and is reusable, so that the device is not only limited to the fabric processing cylinder 11 and other components, but can also be applied to other occasions.

[0099] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0100] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A muffler device, which can be applied to a fabric processing device, wherein the fabric processing device comprises a fabric processing drum and a driving motor for driving the fabric processing drum, wherein the driving motor is located at the rear side of the fabric processing drum, and is characterized in that: The muffler device comprises: A main pipe muffler is arranged along the direction from the bottom of the fabric processing cylinder to the cylinder mouth, the main pipe muffler is used to sleeve the fabric processing cylinder and wrap the driving motor, the main pipe muffler is formed with a protruding end at the driving motor position, and the main pipe muffler is used to reduce the noise of the fabric processing cylinder when the fabric processing cylinder is running; A terminal muffler, the terminal muffler is connected to the protruding end, the terminal muffler forms a muffler cavity, the muffler cavity is communicated with the main pipe muffler, a plurality of sound absorbing rings are arranged in the muffler cavity at intervals along the axial direction of the muffler cavity, each of the sound absorbing rings has a sound absorbing port, the sound absorbing ports of two adjacent sound absorbing rings have different diameters, and the sound absorbing port of the sound absorbing ring close to the drive motor has the largest diameter; Wherein, the terminal silencer is configured to reduce and absorb noise when the driving motor is running.

2. The muffler device according to claim 1, characterized in that: The terminal muffler is a columnar structure, and the terminal muffler includes a connecting end and a muffler end; The connecting end is detachably connected to the protruding end; The muffler end is connected to the connecting end, and the muffler end adopts a knob-type telescopic structure to form a muffler structure with adjustable length.

3. The muffler device according to claim 2, characterized in that: The muffler end comprises a circular tube body and a plurality of sound absorbing rings arranged in the circular tube body and spaced apart from each other, the interior of the circular tube body is configured as the muffler cavity, and the plurality of sound absorbing rings are spaced apart from each other in the circular tube body; Along the bottom of the fabric processing cylinder and pointing toward the cylinder opening, the diameters of the sound absorbing openings of the plurality of sound absorbing rings increase in a step-like manner.

4. The muffler device according to claim 3, characterized in that: The diameter of the sound absorption opening on any of the sound absorption rings is negatively correlated with the distance from the sound absorption ring to the connection end.

5. The muffler device according to claim 4, characterized in that: Define the diameter of the terminal silencer as R, the distance from any of the sound absorbing rings to the connection end as x, and the total length of the terminal silencer as L, then the diameter r of the sound absorbing port on the sound absorbing ring at the distance x is the difference between the diameter R of the terminal silencer and the first product value; The first product value is the product of the distance coefficient K and the distance x, and the distance coefficient K is the quotient of the diameter R of the terminal muffler and the total length L of the terminal muffler.

6. The muffler device according to claim 5, characterized in that: The total length L of the terminal silencer has a value range of 5 mm ≤ L ≤ 220 mm.

7. The muffler device according to any one of claims 2 to 6, characterized in that: The connecting end is threadedly connected to the protruding end.

8. The muffler device according to claim 1, characterized in that: A plurality of dampers are provided on the bottom side of the fabric processing cylinder; The muffler device also includes a first pipe muffler; The first branch pipe silencer is connected to the main pipe silencer in a knob manner, and there are multiple first branch pipe silencers, which are covered on the outer surfaces of the multiple dampers in a one-to-one correspondence; Wherein, a sealing strip is provided at the connection position between the first pipe silencer and the damper.

9. The muffler device according to claim 1, characterized in that: An elastic member is disposed on the top side of the fabric processing cylinder; The muffler device also includes a second pipe muffler; The second branch pipe silencer is connected to the main pipe silencer in a knob manner, and the second branch pipe silencer is covered on the outer surface of the elastic member.

10. The muffler device according to claim 1, characterized in that: One end of the main pipe muffler away from the terminal muffler is used to be connected to the fabric processing cylinder through a snap-fit ​​part.

11. A fabric processing device, characterized in that: The fabric treating apparatus comprises a fabric treating drum and the muffler device according to any one of claims 1 to 10.

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