A filter silencer

Abstract

The utility model discloses a filtering silencer, comprising a filter and a silencer body, wherein an inserting head is arranged at an air outlet end on the right side of the silencer body, an inserting port is opened at a position of the filter corresponding to the inserting head, a sealing ring is arranged at a peripheral fixed sleeve on the right side of the inserting head, a fixed sealing structure is movably arranged at an inner side wall of the inserting port corresponding to the position of the inserting head, and the fixed sealing structure can abut against the outer periphery of the sealing ring at the inserting head; the setting of the fixed sealing structure facilitates the clamping and disassembly of the inserting head, and during the insertion and disassembly, the generation of friction between the inserting head and the inner side wall of the inserting port is greatly reduced, so that the insertion and disassembly process is more convenient and the work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter silencers, in particular to a filter silencer. Background Art

[0002] Compressors and other equipment have large air intakes, and the noise generated by the intake is also large. The noise of air compressors is mainly composed of aerodynamic noise radiated from the inlet and outlet, mechanical noise of structural parts, driver noise, and overlapping noise from multiple sound sources. Most of the noise of air compressors comes from the inlet and outlet, and then radiates through the casing. Generally, an intake filter silencer with a combination of silencing and filtering functions is installed.

[0003] Utility model patent CN212867849U discloses an air compressor filter silencer, including a filter and a shunt pipe, the filter is fixedly connected with a connecting pipe, the inner wall of the connecting pipe is fixedly connected with a rubber damping ring, the inner wall of the rubber damping ring is fixedly connected with a sealing ring, the shunt pipe extends into the connecting pipe and abuts against the inner wall of the sealing ring, the end of the connecting pipe opposite to the filter is fixedly connected with two connecting rods, the outer wall of the shunt pipe is sleeved with a rubber ring, the outer wall of the rubber ring is fixedly connected with a connecting ring, the connecting ring is penetrated with a mounting groove opposite to the two connecting rods, the two connecting rods respectively penetrate the two mounting grooves and are slidably connected, and a connecting mechanism is provided between the two connecting rods and the connecting ring;

[0004] The device controls the limit of the connecting rod through two repelling magnetic blocks, thereby facilitating the installation and removal of the filter. However, the reliability of the control using the repulsiveness of the magnetic blocks is too low, and the sealing ring and the protrusion on the inner wall of the connecting pipe are more laborious to install and remove when the shunt pipe is installed due to the existence of friction, which cannot effectively improve the installation efficiency. Utility Model Content

[0005] In view of the technical problems in the prior art, the utility model provides a filter silencer, the purpose of which is to solve the above problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A filter silencer comprises a filter and a silencer body, wherein an outlet end on the right side of the silencer body is provided with a plug-in head, an insertion port is opened at the filter corresponding to the insertion head, a sealing ring is provided on the outer fixed sleeve on the right side of the insertion head, a fixed sealing structure is movably provided on the inner side wall of the insertion port corresponding to the insertion head, and the fixed sealing structure can abut against the outer periphery of the sealing ring at the insertion head.

[0008] Preferably, the fixed sealing structure includes two arc-shaped clamping plates which are arranged in upper and lower mirror images on the inner wall of the insertion port, the outer wall of the arc-shaped clamping plate is in contact with the inner wall of the insertion port, and the inner wall is in contact with the outer wall of the insertion head, the lower arc-shaped clamping plate is fixed to the lower inner wall of the insertion port, and the upper inner wall of the insertion port is provided with a clamping assembly corresponding to the upper arc-shaped clamping plate, and the upper arc-shaped clamping plate can be abutted against the lower arc-shaped clamping plate through the clamping assembly to clamp and fix the insertion head.

[0009] Preferably, fixed plug blocks are respectively provided at the inner side walls of the two arc-shaped clamping plates corresponding to the insertion heads, and matching plug holes are respectively opened at the fixed plug blocks at the two arc-shaped clamping plates corresponding to the insertion heads, and the plug holes are located on the left side of the sealing ring.

[0010] Preferably, the clamping assembly includes a connecting rod vertically arranged on the upper side of the insertion port, the connecting rod downwardly passes through the side wall of the insertion port and extends into the interior thereof, and the end is fixedly connected to the outer top of the arc-shaped clamping plate on the upper side, the connecting rod is slidably connected to the side wall of the insertion port, and a movable cavity is opened in the side wall of the insertion port corresponding to the connecting rod, and a limit block slidably connected to the movable cavity is fixedly provided at the lower end of the connecting rod located in the movable cavity, and a first spring is also provided on the upper side of the limit block in the movable cavity, and the first spring is inserted on the connecting rod.

[0011] Preferably, a pull block is fixedly provided on the top of the outer side of the insertion port of the connecting rod.

[0012] Preferably, sealing strips are respectively provided at the abutment points of the two arc-shaped clamping plates.

[0013] Preferably, a placement groove is provided in the right side wall of the insertion port corresponding to the insertion head, and a second spring is transversely arranged in the placement groove. One end of the second spring located in the placement groove is fixed in the placement groove, and the end facing the insertion head can abut against the right side wall of the insertion head.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a filter silencer, when the silencer body is installed, the pulling block is first pulled upwards, so that the upper arc-shaped clamping plate is pulled open, so that the plug-in head of the silencer body is inserted into the plug-in port of the filter, and the plug-in hole at the plug-in head is directed upwards / downwards during the insertion process, and the plug-in head abuts against the second spring until the plug-in head abuts against the right side wall in the plug-in port. At this time, the plug-in hole of the plug-in head corresponds to the fixed plug-in block of the arc-shaped clamping plate, and then the pulling block is released, and the clamping plug-in head is moved downwards under the action of the first spring, and the fixed plug-in block is inserted into the plug-in hole to fix it. When the arc-shaped clamping plate is fully clamped, the sealing strips of the two arc-shaped clamping blocks abut against each other and cooperate with the sealing strips to complete the docking seal. When disassembling, it is only necessary to pull the pulling block to loosen the upper arc-shaped clamping plate, and the silencer body is ejected under the action of the second spring. This design is convenient and quick during the installation and disassembly process, and will not affect the sealing during installation, thereby ensuring the normal use of the silencer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a disassembled schematic diagram of a filter silencer described in the utility model;

[0017] Figure 2 This is an enlarged view of point A of a filter silencer described in the utility model;

[0018] Figure 3 This is a schematic diagram of the assembly of a filter silencer described in the utility model.

[0019] In the figure: 1. filter; 2. plug-in head; 21. socket; 3. plug-in port; 31. movable cavity; 32. placement groove; 33. second spring; 4. sealing ring; 5. fixed sealing structure; 51. arc-shaped clamping plate; 52. fixed plug-in block; 53. sealing strip; 6. clamping assembly; 61. connecting rod; 62. limit block; 63. first spring; 64. pull block; 7. silencer body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3In the embodiment proposed in the present application, a filter silencer is provided, comprising a filter 1 and a silencer body 7, a plug-in head 2 is provided at the air outlet end on the right side of the silencer body 7, a plug-in port 3 is provided at the filter 1 corresponding to the plug-in head 2, a sealing ring 4 is provided at the outer peripheral sleeve of the right side of the plug-in head 2, a fixed sealing structure 5 is movably provided at the inner side wall of the plug-in port 3 corresponding to the plug-in head 2, and the fixed sealing structure 5 can abut against the outer periphery of the sealing ring 4 at the plug-in head 2;

[0022] By setting the fixed sealing structure 5, the clamping and disassembly of the insertion head 2 are facilitated. During insertion and disassembly, the friction between the insertion head 2 and the inner wall of the insertion port 3 is greatly reduced, making the insertion and disassembly process more convenient and improving work efficiency. The silencer body 7, filter 1 and its working principle of the filter silencer here are all existing conventional components and existing technologies, which will not be elaborated here.

[0023] In another embodiment, see Figure 1-3 The fixed sealing structure 5 includes two arc-shaped clamping plates 51 which are arranged in mirror images on the inner side wall of the insertion port 3. The outer side wall of the arc-shaped clamping plate 51 fits with the inner side wall of the insertion port 3, and the inner side wall fits with the outer side wall of the insertion head 2. Sealing strips 53 are respectively provided at the abutting positions of the two arc-shaped clamping plates 51. The lower arc-shaped clamping plate 51 is fixed to the lower inner side wall of the insertion port 3. The upper inner side wall of the insertion port 3 is provided with a clamping assembly 6 corresponding to the upper arc-shaped clamping plate 51. The upper arc-shaped clamping plate 51 can abut against the lower arc-shaped clamping plate 51 through the clamping assembly 6 to clamp and fix the insertion head 2. Fixed plug-in blocks 52 are respectively provided at the inner side walls of the two arc-shaped clamping plates 51 corresponding to the insertion head 2. The fixed plug-in blocks 52 at the two arc-shaped clamping plates 51 of the insertion head 2 are respectively provided with matching sockets 21, and the sockets 21 are located on the left side of the sealing ring 4.

[0024] Through the movable upper arc-shaped clamping plate 51, during the installation process, the sealing ring 4 at the insertion head 2 will not touch the arc-shaped clamping plate 51 by pulling the clamping component 6 during insertion, so as to avoid increasing friction and affecting the insertion of the insertion head 2. On the contrary, it is convenient, fast and efficient during disassembly. After the insertion is completed, it is clamped and fixed by the clamping component 6, and sealed with the sealing ring 4 and the sealing strip 53. At the same time, the fixed plug block 52 and the socket 21 can be firmly fixed at the insertion port 3.

[0025] In this embodiment, the clamping assembly 6 includes a connecting rod 61 vertically arranged on the upper side of the insertion port 3. The connecting rod 61 passes downward through the side wall of the insertion port 3 and extends to the inside thereof, and the end is fixedly connected to the outer top of the upper arc-shaped clamping plate 51. The connecting rod 61 is slidably connected to the side wall of the insertion port 3. An active cavity 31 is provided in the side wall of the insertion port 3 corresponding to the connecting rod 61. A limit block 62 slidably connected to the active cavity 31 is fixedly provided at the lower end of the connecting rod 61 located in the active cavity 31. A first spring 63 is also provided on the upper side of the limit block 62 in the active cavity 31. The first spring 63 is inserted on the connecting rod 61. A pull block 64 is fixedly provided on the top of the connecting rod 61 located outside the insertion port 3.

[0026] A placement groove 32 is provided in the right side wall of the insertion port 3 corresponding to the insertion head 2, and a second spring 33 is transversely provided in the placement groove 32. One end of the second spring 33 located in the placement groove 32 is fixed in the placement groove 32, and the other end facing the insertion head 2 can abut against the right side wall of the insertion head 2;

[0027] When the insertion head 2 is inserted, the pull block 64 is lifted upwards, thereby driving the upper arc-shaped clamping plate 51 to move upward, providing insertion space for the insertion head 2, thereby greatly reducing the generation of friction during installation. After the insertion is completed, the pull block 64 is released, and under the action of the first spring 63, the upper arc-shaped clamping plate 51 moves downward to clamp the insertion head 2, and the fixed plug block 52 is inserted into the insertion hole 21 to fix it. When the arc-shaped clamping plate 51 is fully clamped, the sealing strips 53 of the two arc-shaped clamping plates 51 abut against each other, and cooperate with the sealing strip 53 to complete the docking seal. When disassembling, it is only necessary to pull the pull block 64 to loosen the upper arc-shaped clamping plate 51, and the silencer body 7 is ejected under the action of the second spring 33, which is convenient and quick. At the same time, the setting of the second spring 33 can stabilize the insertion head 2 during installation.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter silencer, comprising a filter (1) and a silencer body (7), characterized in that: The outlet end on the right side of the muffler body (7) is provided with a plug-in head (2); the filter (1) is provided with a plug-in port (3) corresponding to the plug-in head (2); a sealing ring (4) is fixedly sleeved on the right side of the plug-in head (2); a fixed sealing structure (5) is movably provided on the inner side wall of the plug-in port (3) corresponding to the plug-in head (2); the fixed sealing structure (5) can abut against the outer periphery of the sealing ring (4) at the plug-in head (2); The fixed sealing structure (5) comprises two arc-shaped clamping plates (51) arranged in mirror images on the inner side wall of the insertion port (3), the outer side wall of the arc-shaped clamping plate (51) is in contact with the inner side wall of the insertion port (3), and the inner side wall is in contact with the outer side wall of the insertion head (2), the lower arc-shaped clamping plate (51) is fixed to the lower inner side wall of the insertion port (3), and the upper inner side wall of the insertion port (3) is provided with a clamping assembly (6) corresponding to the upper arc-shaped clamping plate (51), and the upper arc-shaped clamping plate (51) can be abutted against the lower arc-shaped clamping plate (51) through the clamping assembly (6) to clamp and fix the insertion head (2); The inner side walls of the two arc-shaped clamping plates (51) are respectively provided with fixed plug blocks (52) at the corresponding insertion heads (2), and the fixed plug blocks (52) at the corresponding two arc-shaped clamping plates (51) of the insertion head (2) are respectively provided with matching insertion holes (21), and the insertion holes (21) are located on the left side of the sealing ring (4); The clamping assembly (6) comprises a connecting rod (61) vertically arranged on the upper side of the insertion port (3), the connecting rod (61) passes downward through the side wall of the insertion port (3) and extends into the interior thereof, and the end thereof is fixedly connected to the outer top of the upper arc-shaped clamping plate (51), the connecting rod (61) is slidably connected to the side wall of the insertion port (3), an active cavity (31) is provided in the side wall of the insertion port (3) corresponding to the connecting rod (61), a limit block (62) slidably connected to the active cavity (31) is fixedly provided at the lower end of the connecting rod (61) located in the active cavity (31), and a first spring (63) is also provided in the active cavity (31) on the upper side of the limit block (62), and the first spring (63) is inserted on the connecting rod (61).

2. A filter silencer according to claim 1, characterized in that: The connecting rod (61) is located on the top outside of the insertion opening (3) and is fixedly provided with a pull block (64).

3. A filter silencer according to claim 1, characterized in that: Sealing strips (53) are respectively provided at the abutting positions of the two arc-shaped clamping plates (51).

4. A filter silencer according to claim 1, characterized in that: A placement groove (32) is provided on the right side wall of the insertion opening (3) corresponding to the insertion head (2), and a second spring (33) is transversely arranged in the placement groove (32). One end of the second spring (33) located in the placement groove (32) is fixed in the placement groove (32), and the other end facing the insertion head (2) can abut against the right side wall of the insertion head (2).

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