Fan filter muffler structure

Abstract

The utility model discloses a fan filter silencing structure, including shell and sound absorbing material, sound absorbing material is in the shell, be equipped with a plurality of air flue on sound absorbing material, fan filter silencing structure still includes connecting piece and filter plate, connecting piece is arc structure, and filter plate is located between connecting piece and sound absorbing material, and be equipped with the slotting corresponding with filter plate on shell, and the application can conveniently clean filter plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of fan silencers, and in particular relates to a fan filter silencer structure. Background Technology

[0002] With the intensification of industrialization, environmental pollution has become an additional problem. Among these, noise pollution control has become paramount. Noise pollution from fans has always been a difficult issue to resolve, with minimal results despite significant investment of manpower and resources. In recent years, national standards for fan noise have become increasingly stringent, necessitating the development of easily manufactured and highly effective equipment to reduce noise. Currently, regarding the generation of noise in fans, besides the unavoidable noise emitted by the motor itself during operation, turbulence easily occurs when airflow encounters sharp obstacles. This turbulence, similar to eddies, also generates noise, or high-frequency whistling sounds, which also leads to efficiency losses for the fan. To reduce fan noise, silencers are usually installed on the fan. Silencers can be installed at the fan's inlet or outlet, with those installed at the outlet often having a better noise reduction effect. However, the airflow at the fan outlet carries a lot of dust, and excessive dust can damage the internal structure of the silencer, affecting its noise reduction effect. Therefore, filters are usually installed on the silencer. The filter is usually installed between the noise reduction material and the fan outlet. The fan outlet and the silencer are sealed together, making it extremely inconvenient to clean the filter. The silencer needs to be removed from the fan to clean the filter, which greatly increases the difficulty of silencer maintenance. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a fan filter noise reduction structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fan filter noise reduction structure, including a shell and a noise reduction material, the noise reduction material being located inside the shell, the noise reduction material having multiple air ducts, the fan filter noise reduction structure also including a connector and a filter plate, the connector having an arc-shaped structure, the filter plate being located between the connector and the noise reduction material, and the shell having a slot corresponding to the filter plate.

[0006] Furthermore, the fan filter noise reduction structure also includes a first connecting plate and a second connecting plate, both of which are arc-shaped structures; the first connecting plate is provided with a first groove corresponding to the filter plate, and the second connecting plate is provided with a second groove corresponding to the filter plate, and the first connecting plate and the second connecting plate are inserted into the groove.

[0007] Furthermore, the first groove is provided with multiple insertion rods, the filter plate is provided with multiple insertion holes corresponding to the insertion rods, and the side wall of the second groove is provided with multiple connection holes corresponding to the insertion rods.

[0008] Furthermore, the first connecting plate is provided with a first through groove, the second connecting plate is provided with a second through groove, a first connecting rod is inserted through the first through groove and the second through groove, one end of the first connecting rod is provided with an end block, the end block is made of magnet, and the first connecting plate is provided with a magnetic block.

[0009] Furthermore, the outer casing is provided with a protrusion, the protrusion is provided with a first connecting groove corresponding to the first connecting rod, the first connecting rod is provided with a fixing block and a first movable groove for the fixing block to move, and the side wall of the first connecting groove is provided with a fixing groove corresponding to the fixing block.

[0010] Furthermore, the end block is provided with a second movable groove, the first movable groove and the second movable groove are connected, the second movable groove is provided with a first push block, the first push block and the fixed block are connected by a second connecting rod, and the second connecting rod is provided with a first spring.

[0011] Furthermore, an annular groove is provided on the inner wall of the outer casing, and a sealing ring is provided inside the annular groove.

[0012] Furthermore, a threaded rod is rotatably connected to the connector, and a threaded hole corresponding to the threaded rod is provided on the outer shell; a guide rod is provided on the connector, and a guide groove corresponding to the guide rod is provided on the inner wall of the outer shell.

[0013] Furthermore, the outer casing is also provided with a sleeve, which is fitted onto the threaded rod, and the outer casing is provided with a second connecting groove corresponding to the sleeve.

[0014] Furthermore, one end of the threaded rod is provided with an end plate, and multiple protruding strips are provided on the inner wall of the sleeve. Multiple third grooves are provided on the side wall of the end plate. A third movable groove and a fourth movable groove are provided on the side wall of the sleeve. A connecting block is provided in the third movable groove, and a second push block is provided in the fourth movable groove. The connecting block and the second push block are connected by a third connecting rod, which is equipped with a second spring. Multiple protruding rings are provided on the inner wall of the second connecting groove. The advantage of this utility model is that it provides a fan filter noise reduction structure that facilitates cleaning of the filter plate. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the fan filter noise reduction structure in one embodiment of the present invention.

[0019] Figure 2 for Figure 1 A cross-sectional view of the first connecting plate and the second connecting plate of the fan filter noise reduction structure in the illustrated embodiment.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0021] Figure 4 for Figure 1 A cross-sectional view of the sleeve of the fan filter noise reduction structure in the illustrated embodiment.

[0022] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0023] Figure 6 for Figure 5 Enlarged view of point C in the image.

[0024] The meanings of the reference numerals in the figure are as follows: 101, outer shell; 102, sound-absorbing material; 103, filter plate; 104, first connecting plate; 105, second connecting plate; 106, insertion rod; 107, first connecting rod; 108, end block; 109, protrusion; 110, fixing block; 111, first push block; 112, second connecting rod; 113, first spring; 114, sealing ring; 115, connector; 116, threaded rod; 1161, end plate; 1162, third groove; 117, sleeve; 1171, protrusion; 118, guide rod; 119, second push block; 120, third connecting rod; 121, second spring; 122, connecting block; 123, protruding ring. Detailed Implementation

[0025] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0026] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0027] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0028] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figure 1-6 As shown, a fan filter noise reduction structure includes a housing 101 and a sound-absorbing material 102. The sound-absorbing material 102 is located inside the housing 101 and has multiple air ducts. The fan filter noise reduction structure also includes a connector 115 and a filter plate 103. The connector 115 has an arc-shaped structure, and the filter plate 103 is located between the connector 115 and the sound-absorbing material 102. The housing 101 has a slot corresponding to the filter plate 103. By setting the slot, the filter plate 103 can be easily removed from the slot and cleaned separately without removing the housing 101 from the fan outlet, thus reducing the maintenance difficulty of the noise reduction structure.

[0032] Furthermore, the fan filter noise reduction structure also includes a first connecting plate 104 and a second connecting plate 105, both of which are arc-shaped structures; the first connecting plate 104 is provided with a first groove corresponding to the filter plate 103, and the second connecting plate 105 is provided with a second groove corresponding to the filter plate 103, and the first connecting plate 104 and the second connecting plate 105 are inserted into the groove.

[0033] The first groove is provided with multiple insertion rods 106, and the filter plate 103 is provided with multiple insertion holes corresponding to the insertion rods 106. The side wall of the second groove is provided with multiple connection holes corresponding to the insertion rods 106. The filter plate 103 is connected to the first connecting plate 104 and the second connecting plate 105 by using the insertion rods 106 to ensure the connection effect of the filter plate 103.

[0034] Furthermore, the first connecting plate 104 is provided with a first through groove, the second connecting plate 105 is provided with a second through groove, a first connecting rod 107 is inserted through the first through groove and the second through groove, one end of the first connecting rod 107 is provided with an end block 108, the end block 108 is made of magnet, and the first connecting plate 104 is provided with a magnetic block.

[0035] The outer casing 101 is provided with a protrusion 109, the protrusion 109 is provided with a first connecting groove corresponding to the first connecting rod 107, the first connecting rod 107 is provided with a fixing block 110 and a first movable groove for the fixing block 110 to move, and the side wall of the first connecting groove is provided with a fixing groove corresponding to the fixing block 110.

[0036] The end block 108 is provided with a second movable groove, the first movable groove and the second movable groove are connected, the second movable groove is provided with a first push block 111, the first push block 111 and the fixed block 110 are connected by a second connecting rod 112, the second connecting rod 112 is provided with a first spring 113, and the fixed block 110 is provided with an inclined groove.

[0037] The first connecting rod 107 connects the first connecting plate 104 and the second connecting plate 105 together to prevent the first connecting plate 104 or the second connecting plate 105 from being lost. After the filter plate 103 is installed into the outer casing 101, the first connecting plate 104 and the second connecting plate 105 are in the slot and the slot is closed. The end block 108 is pushed towards the first connecting plate 104, and the first connecting rod 107 is inserted into the first connecting slot. The fixing block 110 enters the first connecting slot and is inserted into the fixing slot. The fixing block 110 fixes the first connecting rod 107 in the first connecting slot. The first connecting rod 107 is used to fix the first connecting plate 104 and the second connecting plate 105, ensuring the stability of the filter plate 103 in use.

[0038] When disassembling the filter plate 103, press the first push block 111. The first push block 111 drives the fixing block 110 to move, so that the fixing block 110 can be removed from the fixing groove. The first connecting rod 107 can then be removed from the first connecting groove, thus making it easy to remove the filter plate 103 from the groove for cleaning.

[0039] Due to the arrangement of the first connecting plate 104 and the second connecting plate 105, the width of the slot is greater than the width of the filter plate 103, which prevents the filter plate 103 from contacting the inner wall of the slot when it is taken out and scraping off the dust on the surface of the filter plate 103, so as to clean out the dust inside the outer casing 101.

[0040] Furthermore, an annular groove is provided on the inner wall of the outer casing 101, and a sealing ring 114 is provided in the annular groove. The sealing ring 114 is made of rubber. A sealing ring 114 of appropriate size can be selected and installed according to the air outlet of the fan. The sealing ring 114 is used to ensure the connection between the outer casing 101 and the air outlet of the fan and to avoid air leakage.

[0041] Furthermore, a threaded rod 116 is rotatably connected to the connector 115, and a threaded hole corresponding to the threaded rod 116 is provided on the outer shell 101; a guide rod 118 is provided on the connector 115, and a guide groove corresponding to the guide rod 118 is provided on the inner wall of the outer shell 101; the guide rod 118 and the guide groove cooperate with each other to guide the connector 115, so that when the threaded rod 116 rotates in the threaded hole, it can drive the connector 115 to move, so as to fix the outer shell 101 to the air outlet of the fan using the connector 115.

[0042] Furthermore, the outer casing 101 is also provided with a sleeve 117, which is sleeved on the threaded rod 116, and the outer casing 101 is provided with a second connecting groove corresponding to the sleeve 117.

[0043] One end of the threaded rod 116 is provided with an end plate 1161. The inner wall of the sleeve 117 is provided with multiple protrusions 1171. The side wall of the end plate 1161 is provided with multiple third grooves 1162. The setting of the third grooves 1162 increases the friction of the side wall of the end plate 1161, making the rotation of the end plate 1161 more convenient. The side wall of the sleeve 117 is provided with a third movable groove and a fourth movable groove. The third movable groove is provided with a connecting block 122, and the connecting block 122 is provided with a rubber diaphragm. The fourth movable groove is provided with a second push block 119. The connecting block 122 and the second push block 119 are connected by a third connecting rod 120. The third connecting rod 120 is provided with a second spring 121. The inner wall of the second connecting groove is provided with multiple protruding rings 123, and the protruding rings 123 are in contact with the rubber diaphragm.

[0044] When connecting the silencer structure, the outer casing 101 is fitted onto the air outlet of the fan, and the sealing ring 114 is clamped onto the air outlet of the fan to seal the gap between the outer casing 101 and the air outlet. Rotating the end plate 1161 causes the threaded rod 116 to engage with the threaded hole, pushing the connector 115 into the inner part of the outer casing 101. The connector 115 abuts against the side wall of the air outlet of the fan, and the outer casing 101 is fixed to the air outlet of the fan using the connector 115. Then, the sleeve 117 is fitted onto the end plate 101. On plate 1161, protrusion 1171 is embedded in third groove 1162 so that sleeve 117 and end plate 1161 form anti-rotation fit. The bottom of sleeve 117 is inserted into second connecting groove. Protrusion ring 123 abuts against rubber membrane on connecting block 122 to fix sleeve 117 in second connecting groove. Sleeve 117 protects threaded rod 116 and prevents threaded rod 116 from rotating when the sound-absorbing structure is used, ensuring the connection effect between sound-absorbing structure and fan.

[0045] When disassembling the silencing structure, push the second pusher 119 to move the connecting block 122 into the third movable groove, then remove the sleeve 117 from the second connecting groove. Rotate the threaded rod 116 to disengage the connecting piece 115 from the fan outlet sidewall, thus easily removing the silencing structure from the fan outlet. The above description is only some preferred embodiments of this disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features without departing from the above-mentioned utility model concept. For example, technical solutions formed by substituting the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A fan filter noise reduction structure, comprising a housing and a noise reduction material, wherein the noise reduction material is located inside the housing, and the noise reduction material is provided with multiple air ducts, characterized in that: The fan filter noise reduction structure also includes a connector and a filter plate. The connector is an arc-shaped structure. The filter plate is disposed between the connector and the noise reduction material. The outer shell is provided with a slot corresponding to the filter plate.

2. The fan filter noise reduction structure according to claim 1, characterized in that: It also includes a first connecting plate and a second connecting plate, both of which are arc-shaped structures; the first connecting plate is provided with a first groove corresponding to the filter plate, and the second connecting plate is provided with a second groove corresponding to the filter plate, and the first connecting plate and the second connecting plate are inserted into the groove.

3. The fan filter noise reduction structure according to claim 2, characterized in that: The first groove is provided with multiple insertion rods, the filter plate is provided with multiple insertion holes corresponding to the insertion rods, and the side wall of the second groove is provided with multiple connection holes corresponding to the insertion rods.

4. The fan filter noise reduction structure according to claim 2, characterized in that: The first connecting plate is provided with a first through groove, the second connecting plate is provided with a second through groove, a first connecting rod is inserted through the first through groove and the second through groove, one end of the first connecting rod is provided with an end block, the end block is made of a magnet, and the first connecting plate is provided with a magnetic block.

5. The fan filter noise reduction structure according to claim 4, characterized in that: The outer casing is provided with a protrusion, and the protrusion is provided with a first connecting groove corresponding to the first connecting rod. The first connecting rod is provided with a fixing block and a first movable groove for the fixing block to move. The side wall of the first connecting groove is provided with a fixing groove corresponding to the fixing block.

6. The fan filter noise reduction structure according to claim 5, characterized in that: The end block is provided with a second movable groove, the first movable groove and the second movable groove are connected, the second movable groove is provided with a first push block, the first push block and the fixed block are connected by a second connecting rod, and the second connecting rod is provided with a first spring.

7. The fan filter noise reduction structure according to claim 1, characterized in that: The inner wall of the outer casing is provided with an annular groove, and a sealing ring is provided in the annular groove.

8. The fan filter noise reduction structure according to claim 1, characterized in that: A threaded rod is rotatably connected to the connector, and a threaded hole corresponding to the threaded rod is provided on the outer shell; a guide rod is provided on the connector, and a guide groove corresponding to the guide rod is provided on the inner wall of the outer shell.

9. The fan filter noise reduction structure according to claim 8, characterized in that: The outer casing is also provided with a sleeve, which is fitted onto the threaded rod, and the outer casing is provided with a second connecting groove corresponding to the sleeve.

10. The fan filter noise reduction structure according to claim 9, characterized in that: One end of the threaded rod is provided with an end plate, and the inner wall of the sleeve is provided with multiple protrusions. The side wall of the end plate is provided with multiple third grooves. The side wall of the sleeve is provided with a third movable groove and a fourth movable groove. A connecting block is provided in the third movable groove, and a second push block is provided in the fourth movable groove. The connecting block and the second push block are connected by a third connecting rod. A second spring is provided on the third connecting rod, and multiple protruding rings are provided on the inner wall of the second connecting groove.

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