A noise reduction device

Abstract

This utility model discloses a noise reduction device, relating to the field of noise reduction technology for sewing equipment, comprising: a housing; a noise reduction component disposed within the housing, the noise reduction component having an inner hole; and a manifold fixedly disposed within the housing, one end of the manifold having a plurality of inlet holes, and the other end having a manifold hole, the manifold hole communicating with the inlet holes; wherein, the inlet holes are used to connect with the air outlet of a pneumatic component, and the end of the manifold with the manifold hole extends into the inner hole of the noise reduction component. The above-mentioned noise reduction device, with its manifold design, enhances the airflow concentration of the pneumatic component, improves the sound absorption efficiency of the noise reduction component, effectively reduces the noise generated by the pneumatic component during sewing, and improves the working environment for workers. The manifold can be provided with different numbers of inlet holes, and by replacing different manifolds, it can be compatible with sewing equipment with different pneumatic configurations.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction technology for sewing equipment, and in particular to a noise reduction device. Background Technology

[0002] During the sewing process, the vacuum generator, suction tube, and other pneumatic components of the sewing machine generate high-frequency noise, which affects the working environment of the sewing workers.

[0003] Existing silencers are mostly fixed structures, which cannot be adapted to sewing machines with multiple air sources, and their noise reduction efficiency is limited. Therefore, the existing technology still has shortcomings and deficiencies. How to provide a silencer device that can be adapted to sewing machines with multiple air sources and has high noise reduction efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide a silencing device that solves the technical problems that existing silencers are mostly fixed structures, cannot be adapted to multi-air source models, and have limited noise reduction efficiency.

[0005] To achieve the above objectives, this utility model provides a noise reduction device, comprising:

[0006] case;

[0007] A noise-reducing component is disposed within the housing, and the noise-reducing component has an inner hole;

[0008] A manifold is fixedly installed inside the housing. One end of the manifold is provided with a plurality of access holes, and the other end is provided with a manifold hole, which communicates with the access holes.

[0009] The access hole is used to connect with the air outlet of the pneumatic component, and one end of the manifold with the manifold hole extends into the inner hole of the silencer.

[0010] Preferably, there are two access holes, one of which is used to connect with a vacuum generator and the other is used to connect with a vacuum suction pipe.

[0011] Preferably, the sound-absorbing component is a sponge, and the sponge is in the shape of a hollow cylinder.

[0012] Preferably, the busbar includes:

[0013] Access segment, wherein the access hole is disposed in the access segment;

[0014] A manifold section, wherein the manifold orifice is disposed in the manifold section;

[0015] The connection segment is connected at both ends to the access segment and the bus segment, respectively.

[0016] The outer diameter of the merging section is smaller than the outer diameters of the connecting section and the access section.

[0017] Preferably, the aperture of the connecting section gradually decreases from one end of the access section to one end of the merge section.

[0018] Preferably, the manifold is located in the middle of the manifold section.

[0019] Preferably, the housing is a cylindrical structure, and a retaining ring coaxial with the housing is fixedly provided at the bottom of the housing.

[0020] Preferably, the housing and the manifold are connected by fasteners.

[0021] Preferably, the end of the housing away from the retaining ring is provided with a plurality of mounting holes, and the fastener passes through the mounting holes to connect with the busbar.

[0022] Preferably, the fastener is a bolt or screw.

[0023] Compared to the aforementioned background technology, the silencing device provided by this utility model features a manifold design that enhances the airflow concentration of the pneumatic components, improves the sound absorption efficiency of the silencing components, effectively reduces the noise generated by the pneumatic components during sewing, and improves the working environment for workers. The manifold can be equipped with different numbers of access holes, allowing compatibility with sewing devices of different pneumatic configurations by replacing different manifolds. The housing, silencing components, and manifold are easy to assemble and maintain. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the silencing device provided in an embodiment of the present utility model;

[0026] Figure 2 A schematic diagram of the silencing device provided in an embodiment of this utility model from another perspective;

[0027] Figure 3 This is a schematic diagram of the structure of the busbar provided in an embodiment of the present utility model;

[0028] Figure 4 A cross-sectional view of the busbar provided in an embodiment of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the shell provided in an embodiment of the present utility model;

[0030] Figure 6 This is a structural schematic diagram of the housing from another perspective provided in an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the noise reduction component provided in the embodiment of this utility model;

[0032] Figure 8 One of the schematic diagrams showing the use of the silencing device provided in this embodiment of the utility model;

[0033] Figure 9 This is a second schematic diagram showing the use of the silencing device provided in this embodiment of the utility model.

[0034] Figures 1 to 9 Reference numerals in the attached drawings: 1. Housing; 101. Retaining ring; 102. Mounting hole; 2. Silencing component; 202. Inner hole; 3. Manifold; 301. Inlet section; 302. Connecting section; 303. Manifold section; 304. Inlet hole; 305. Manifold hole; 4. Fastener; 5. Vacuum generator; 6. Vacuum suction pipe. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] This utility model provides a noise reduction device. The converging design of the converging component 3 can enhance the airflow concentration of the pneumatic components, improve the sound absorption efficiency of the noise reduction component 2, effectively reduce the noise generated by the pneumatic components during the sewing process of the sewing machine, and improve the working environment of the sewing workers.

[0038] Please refer to this as well. Figures 1 to 9 The silencing device provided by this utility model includes:

[0039] Casing 1;

[0040] A noise-reducing component 2 is provided inside the housing 1, and the noise-reducing component 2 has an inner hole 202;

[0041] A manifold 3 is fixedly installed inside the housing 1. One end of the manifold 3 is provided with a plurality of access holes 304, and the other end is provided with a manifold hole 305. The manifold hole 305 communicates with the access holes 304.

[0042] The inlet hole 304 is used to connect with the air outlet of the pneumatic component, and the end of the manifold 3 with the manifold hole 305 extends into the inner hole 202 of the silencer 2.

[0043] During assembly, first, the silencer 2 is installed inside the housing 1. Then, one end of the manifold 3 is inserted into the inner hole 202 of the silencer 2. Finally, the manifold 3 is fixedly connected to the housing 1. In use, the air outlet of the pneumatic component is connected to the inlet of the manifold 3. When the pneumatic system is operating, the exhaust gas from the pneumatic component is collected by the manifold 3 and introduced into the silencer 2 through the manifold hole 305. The housing 1 and the silencer 2 can effectively reduce the noise generated by the pneumatic component during operation.

[0044] The converging design of the manifold 3 enhances airflow concentration, improves the sound absorption efficiency of the silencer 2, and effectively reduces noise generated by pneumatic components during sewing. The manifold 3 can be equipped with different numbers of inlet holes 304, allowing for compatibility with sewing devices with different pneumatic configurations by replacing different manifolds 3. The housing 1, silencer 2, and manifold 3 are easy to assemble and maintain.

[0045] In some embodiments, please refer to the following: Figures 3 to 4 There are two access holes 304, one of which is used to connect to the vacuum generator 5, and the other is used to connect to the vacuum suction pipe 6.

[0046] When the vacuum generator 5 and the vacuum suction pipe 6 are working, the airflow enters the manifold 3 through the inlet hole 304, and after being gathered inside the manifold 3, it is introduced into the silencer 2 through the manifold hole 305, thereby reducing the noise generated by the vacuum generator 5 and the vacuum suction pipe 6 in this process.

[0047] In some embodiments, please refer to the following: Figure 2 and Figure 7 The sound-absorbing component 2 is made of sponge, which is in the shape of a hollow cylinder. The microporous structure of the sponge can absorb the kinetic energy of the airflow, and the sound waves are reflected and attenuated at the porous interface, thereby achieving noise reduction.

[0048] In some embodiments, please refer to the following: Figures 3 to 4 Bus 3 includes:

[0049] Access segment 301, access hole 304 is provided in access segment 301;

[0050] The manifold section 303 and the manifold orifice 305 are located in the manifold section 303;

[0051] The connection segment 302 is connected to the access segment 301 and the combiner segment 303 at both ends, respectively.

[0052] Among them, the outer diameter of the merging section 303 is smaller than the outer diameter of the connecting section 302 and the access section 301.

[0053] The merging section 303 is roughly columnar in shape, and the end of the access section 301 furthest from the connecting section 302 is also columnar in shape.

[0054] In some embodiments, please refer to the following: Figures 3 to 4 The aperture of the connecting section 302 gradually decreases from one end of the inlet section 301 to the other end of the confluence section 303. After the airflow from the pneumatic component enters the inlet hole 304, it is collected by the connecting section 302 and then enters the confluence hole 305 of the confluence section 303. The design of the connecting section 302 having a gradually decreasing aperture from one end of the inlet section 301 to the other end of the confluence section 303 can enhance the concentration of airflow and improve the sound absorption efficiency of the sponge.

[0055] In some embodiments, please refer to the following: Figures 3 to 4 The manifold 305 is located in the middle of the manifold section 303.

[0056] In some embodiments, please refer to the following: Figures 5 to 6 The housing 1 has a cylindrical structure, and a retaining ring 101 coaxial with the housing 1 is fixed at the bottom of the housing 1.

[0057] After the muffler 2 is installed into the housing 1, the bottom of the muffler 2 is in close contact with the retaining ring 101. By setting the retaining ring 101, the muffler 2 can be limited to prevent it from moving and improve the stability of the overall structure.

[0058] In some embodiments, please refer to the following: Figures 1 to 2 The housing 1 and the manifold 3 are connected by fasteners 4. After the muffler 2 is installed inside the housing 1, one end of the manifold 3 is installed into the inner hole 202 of the muffler 2. The housing 1 and the manifold 3 are detachably connected by fasteners 4, making assembly convenient.

[0059] In some embodiments, please refer to the following: Figures 1 to 2 The housing 1 has multiple mounting holes 102 at the end away from the retaining ring 101, and the fastener 4 passes through the mounting holes 102 to connect with the busbar 3.

[0060] Fasteners 4 are provided in each mounting hole 102, and the fasteners 4 pass through the mounting holes 102 to connect with the busbar 3. Specifically, multiple mounting holes 102 are evenly arranged around the circumference of the housing 1. This arrangement ensures that the load borne by each fastener 4 connecting the housing 1 and the busbar 3 is relatively uniform, improving the overall connection strength and ensuring the stability of the connection.

[0061] In some embodiments, please refer to the following: Figures 1 to 2Fastener 4 is a bolt or screw. The bolt or screw passes through the mounting hole 102 and is threaded to the manifold 3, which not only ensures a reliable connection but also facilitates easy assembly and disassembly.

[0062] Please refer to this as well. Figures 1 to 9 The detailed usage process of the noise reduction device provided by this utility model is as follows: First, embed the sponge into the housing 1, with the bottom of the sponge tightly against the retaining ring 101. Then, insert one end of the manifold 3 with the manifold hole 305 into the inner hole 202 of the noise reduction component 2. Finally, use bolts or screws to thread them through the mounting hole 102 to the manifold 3. After the noise reduction device is assembled, connect the outlet of the vacuum generator 5 and the vacuum suction pipe 6 to the inlet of the manifold 3. When the vacuum generator 5 and the vacuum suction pipe 6 are working, the airflow enters the manifold 3 through the inlet hole 304. After gathering inside the manifold 3, it is introduced into the sponge through the manifold hole 305. The microporous structure of the sponge absorbs the kinetic energy of the airflow, and the sound waves are reflected and attenuated at the porous interface, thereby achieving noise reduction and improving the working environment for workers sewing.

[0063] The converging design of the manifold 3 enhances airflow concentration, improves the sound absorption efficiency of the silencer 2, and effectively reduces the noise generated by pneumatic components during sewing. The manifold 3 can be equipped with different numbers of inlet holes 304, and can be used in various applications by replacing different manifolds 3 to ensure compatibility with sewing devices with different pneumatic configurations.

[0064] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0065] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A noise reduction device, characterized in that, include: Shell (1); A sound-absorbing component (2) is provided inside the housing (1), and the sound-absorbing component (2) has an inner hole (202); A manifold (3) is fixedly installed inside the housing (1). One end of the manifold (3) is provided with a plurality of access holes (304), and the other end is provided with a manifold (305). The manifold (305) communicates with the access holes (304). The access hole (304) is used to connect with the air outlet of the pneumatic component, and one end of the manifold (3) with the manifold hole (305) extends into the inner hole (202) of the silencer (2).

2. The silencing device according to claim 1, characterized in that, There are two access holes (304), one of which is used to connect with the vacuum generator (5) and the other is used to connect with the vacuum suction pipe (6).

3. The silencing device according to claim 1, characterized in that, The sound-absorbing component (2) is a sponge, which is in the shape of a hollow cylinder.

4. The silencing device according to claim 1, characterized in that, The busbar (3) includes: Access segment (301), wherein the access hole (304) is disposed in the access segment (301); A manifold section (303) is provided with the manifold hole (305) located in the manifold section (303); The connecting segment (302) is connected at both ends to the access segment (301) and the bus segment (303), respectively; The outer diameter of the merging section (303) is smaller than the outer diameters of the connecting section (302) and the access section (301).

5. The silencing device according to claim 4, characterized in that, The aperture of the connecting section (302) gradually decreases from one end of the access section (301) to the other end of the merge section (303).

6. The silencing device according to claim 5, characterized in that, The manifold (305) is located in the middle of the manifold section (303).

7. The silencing device according to claim 1, characterized in that, The housing (1) is a cylindrical structure, and a retaining ring (101) coaxial with the housing (1) is fixedly provided at the bottom of the housing (1).

8. The silencing device according to claim 7, characterized in that, The housing (1) is connected to the manifold (3) by fasteners (4).

9. The silencing device according to claim 8, characterized in that, The housing (1) has a plurality of mounting holes (102) at one end away from the retaining ring (101), and the fastener (4) passes through the mounting holes (102) and is connected to the busbar (3).

10. The silencing device according to claim 9, characterized in that, The fastener (4) is a bolt or screw.

Images