Detachable exhaust silencer

Abstract

The utility model belongs to the technical field of silencers, and particularly relates to a detachable exhaust silencer which comprises a box body and a sound absorption device, the bottom end of the box body is fixedly connected with three base plates, and the side wall of the box body is communicated with a guide pipe. A sound absorption device is arranged on the inner surface of the box body and comprises a sealing plate, the sealing plate is located on one side of the box body, a frame is fixedly connected to the side wall of the sealing plate, a sound absorption plate is inserted into the inner surface of the frame, and a handle is fixedly connected to the end, away from the frame, of the sealing plate. The surface of the guide pipe is sleeved with the two sealing covers, sound absorption cotton is arranged on the inner walls of the two sealing covers, and the inner walls of the two sealing covers are in threaded connection with a plurality of fixing pins; by arranging the whole device, the silencing effect on the fan can be achieved, meanwhile, the sound absorption plate can be conveniently replaced, the situation that the whole shell is dismantled is reduced, and therefore waste of operation time is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to a detachable exhaust muffler. Background Art

[0002] A silencer, also known as a muffler, is a device used to reduce noise and is widely used in various fields such as automobiles, industrial machinery, construction sites, aerospace, and daily life. According to its noise reduction mechanism and structural characteristics, silencers can be divided into various types, mainly including resistive mufflers, reactive mufflers, impedance composite mufflers, micro-perforated plate mufflers, small-hole mufflers, and active mufflers, etc.

[0003] Regarding the above and existing related technologies, the inventor believes that there are often the following defects: when a blower needs to be used, a muffler will be used because noise reduction of the blower is required. Since the noise reduction structure of most mufflers is firmly installed inside the pipeline, its replacement operation requires the removal of the entire external structure, which is prone to the problems of cumbersome operation and waste of operation time in actual operations. Therefore, a detachable exhaust muffler is proposed for the above problems. Summary of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: A detachable exhaust muffler of the utility model includes a box body and a sound absorption device. Three pads are fixedly connected to the bottom end of the box body, and a conduit is communicated with the side wall of the box body. A sound absorption device is arranged on the inner surface of the box body. The sound absorption device includes a sealing plate. The sealing plate is located on one side of the box body. A frame is fixedly connected to the side wall of the sealing plate. A sound absorption board is inserted into the inner surface of the frame. A handle is fixedly connected to the end of the sealing plate away from the frame. The sealing plate drives the frame and the sound absorption board to move, and the frame and the sound absorption board are inserted into the inner wall of the box body. By setting the sealing plate, the frame, the sound absorption board and the handle, noise can be absorbed.

[0006] Preferably, two support wheels are rotatably connected to the bottom end of the sealing plate, and the two support wheels are symmetrically distributed with respect to the central axis of the sealing plate. When the sealing plate moves, the sealing plate drives the support wheels to roll on the ground. By setting the support wheels, the sealing plate can be supported to a certain extent.

[0007] Preferably, positioning pins are threadedly connected to the inner surface of the frame and the inner wall of the sound absorption board. After the sound absorption board is inserted into the inner wall of the frame, the positioning pins are rotated to the inner surface of the frame and the inner wall of the sound absorption board. By setting the positioning pins, the position of the sound absorption board can be restricted.

[0008] Preferably, a support column is fixedly connected to the position of the side wall of the box body close to the sealing plate. A retaining rod is rotatably connected to the surface of the support column. The retaining rod is located on the side wall of the sealing plate. When the retaining rod rotates to the side wall of the sealing plate, the retaining rod can limit the position of the sealing plate.

[0009] Preferably, a limit pin is threadedly connected to the inner wall of the box body and the retaining rod. After the retaining rod rotates to the side wall of the sealing plate, the limit pin is rotated to the inner wall of the retaining rod and the box body, and the limit pin can limit the position of the retaining rod.

[0010] Preferably, a plurality of through holes are formed in the surface of the sound-absorbing plate. When the gas flows, the gas will pass through the through holes of the sound-absorbing plate, and the formation of the through holes can facilitate the gas flow.

[0011] Preferably, an auxiliary device is provided on the surface of the conduit. The auxiliary device includes two sealing covers. The two sealing covers are sleeved on the surface of the conduit. Sound-absorbing cotton is provided on the inner walls of the two sealing covers. A plurality of fixing pins are threadedly connected to the inner walls of the two sealing covers. A handle is fixedly connected to the end of the sealing cover away from the conduit. Sound-absorbing cotton is provided on the inner wall of the sealing cover. The fixing pins are rotated to the inner walls of the two sealing covers. By providing the sealing covers, it is convenient to fix the sound-absorbing material on the surface of the conduit.

[0012] Preferably, two support frames are fixedly connected to the surface of the sealing cover. Two fixed wheels are rotatably connected to the surface of the support frames. The support frames drive the fixed wheels to roll on the ground. By providing the support frames and the fixed wheels, it is convenient to move the sealing cover and support the sealing cover at the same time.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. When the present utility model needs to eliminate noise, the sound-absorbing plate is inserted into the inner wall of the frame, and then the positioning pin is rotated to the inner walls of the frame and the sound-absorbing plate. Then, hold the handle and push the handle. The handle drives the sealing plate and the frame to move. The frame drives the sound-absorbing plate to be inserted into the inner wall of the box body. When the frame moves, it will drive the support wheels to roll on the ground. After the sealing plate fits the box body, push the retaining rod to rotate the retaining rod on the surface of the support column. After the retaining rod rotates to the side wall of the sealing plate, the limit pin is rotated to the inner wall of the retaining rod and the box body. When the sound wave propagates, the energy of the sound wave will be absorbed by the sound-absorbing plate. By providing the whole device, the effect of eliminating noise for the fan can be achieved, and at the same time, it is convenient to replace the sound-absorbing plate, reducing the situation of removing the entire outer shell, thereby reducing the waste of operation time.

[0015] 2. When the utility model uses the conduit, the sound-absorbing cotton is stuffed into the inner wall of the sealing cover, and then the handle is pushed to drive the sealing cover to move by the handle. The sealing cover drives the fixed wheel on the support frame to rotate, and the fixed wheel rolls on the ground. After the sealing cover fits the conduit, the fixing pin is rotated to the inner walls of the two sealing covers. By setting the whole device, it can assist the sound-absorbing device to absorb sound waves and reduce the possibility of noise transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic three-dimensional structure diagram of the box body in a detachable exhaust muffler;

[0018] Figure 2 For a detachable exhaust muffler Figure 1 Schematic diagram of the structure at A;

[0019] Figure 3 For a detachable exhaust muffler Figure 1 Schematic diagram of the structure at B;

[0020] Figure 4 It is a schematic side view structure diagram of the box body in a detachable exhaust muffler;

[0021] Figure 5 For a detachable exhaust muffler Figure 4 Schematic diagram of the structure at C.

[0022] In the figure: 1, box body; 2, backing plate; 3, conduit; 4, sound-absorbing device; 41, sealing plate; 42, frame; 43, sound-absorbing board; 44, grip; 45, support wheel; 46, positioning pin; 47, support column; 48, stop bar; 49, limit pin; 5, auxiliary device; 51, sealing cover; 52, support frame; 53, fixed wheel; 54, fixing pin; 55, handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0024] Please refer to Figures 1-5 As shown in the figure, a detachable exhaust muffler includes a box body 1 and a sound absorption device 4. Three pads 2 are fixedly connected to the bottom end of the box body 1, and a conduit 3 is communicated with the side wall of the box body 1. A sound absorption device 4 is arranged on the inner surface of the box body 1. The sound absorption device 4 includes a sealing plate 41. The sealing plate 41 is located on one side of the box body 1. A frame 42 is fixedly connected to the side wall of the sealing plate 41. A sound absorption plate 43 is inserted into the inner surface of the frame 42. A handle 44 is fixedly connected to one end of the sealing plate 41 away from the frame 42. During operation, the sound absorption plate 43 is inserted into the inner wall of the frame 42. Hold the handle 44 and then push the sealing plate 41 to move through the handle 44. The sealing plate 41 drives the frame 42 and the sound absorption plate 43 to move. The frame 42 and the sound absorption plate 43 are inserted into the inner wall of the box body 1. By setting the sealing plate 41, the frame 42, the sound absorption plate 43 and the handle 44, noise can be absorbed.

[0025] Two support wheels 45 are rotatably connected to the bottom end of the sealing plate 41, and the two support wheels 45 are symmetrically distributed with respect to the central axis of the sealing plate 41. During operation, the sealing plate 41 drives the support wheels 45 to roll on the ground. By setting the support wheels 45, the sealing plate 41 can be supported to a certain extent.

[0026] A positioning pin 46 is threadedly connected to the inner surface of the frame 42 and the inner wall of the sound absorption plate 43. During operation, the positioning pin 46 is rotated to the inner surface of the frame 42 and the inner wall of the sound absorption plate 43. By setting the positioning pin 46, the position of the sound absorption plate 43 can be restricted.

[0027] A support column 47 is fixedly connected to the side wall of the box body 1 near the sealing plate 41. A stop bar 48 is rotatably connected to the surface of the support column 47. The stop bar 48 is located on the side wall of the sealing plate 41. During operation, push the stop bar 48 to rotate the stop bar 48 on the surface of the support column 47. The stop bar 48 rotates to the side wall of the sealing plate 41, and the stop bar 48 can restrict the position of the sealing plate 41.

[0028] A limit pin 49 is threadedly connected to the stop bar 48 and the inner wall of the box body 1. During operation, the limit pin 49 is rotated to the stop bar 48 and the inner wall of the box body 1, and the limit pin 49 can restrict the position of the stop bar 48.

[0029] A plurality of through holes are formed on the surface of the sound absorption plate 43. During operation, the gas will pass through the through holes of the sound absorption plate 43. The opening of the through holes can facilitate the flow of the gas.

[0030] The surface of the conduit 3 is provided with an auxiliary device 5. The auxiliary device 5 includes two sealing covers 51. The two sealing covers 51 are sleeved on the surface of the conduit 3. Sound-absorbing cotton is provided on the inner walls of the two sealing covers 51. A plurality of fixing pins 54 are threadedly connected to the inner walls of the two sealing covers 51. One end of the sealing cover 51 away from the conduit 3 is fixedly connected to a handle 55. Sound-absorbing cotton is provided on the inner wall of the sealing cover 51. During operation, hold the handle 55 to drive the sealing cover 51 to move. After the two sealing covers 51 are attached to the conduit 3, rotate the fixing pins 54 to the inner walls of the two sealing covers 51. By providing the sealing cover 51, it is convenient to fix the sound-absorbing material on the surface of the conduit 3.

[0031] Two support frames 52 are fixedly connected to the surface of the sealing cover 51. Two fixed wheels 53 are rotatably connected to the surface of the support frames 52. During operation, the sealing cover 51 drives the support frames 52 to move, and the support frames 52 drive the fixed wheels 53 to roll on the ground. By providing the support frames 52 and the fixed wheels 53, it is convenient to move the sealing cover 51 and support the sealing cover 51 at the same time.

[0032] Working principle: When noise needs to be eliminated, insert the sound-absorbing panel 43 into the inner wall of the frame 42, then rotate the positioning pin 46 to the inner walls of the frame 42 and the sound-absorbing panel 43, then hold the handle 44 and push the handle 44. The handle 44 drives the sealing plate 41 and the frame 42 to move. The frame 42 drives the sound-absorbing panel 43 to be inserted into the inner wall of the box body 1. When the frame 42 moves, it will drive the support wheel 45 to roll on the ground. After the sealing plate 41 is attached to the box body 1, push the stop lever 48 to make the stop lever 48 rotate on the surface of the support column 47. After the stop lever 48 rotates to the side wall of the sealing plate 41, rotate the limit pin 49 to the inner walls of the stop lever 48 and the box body 1. When sound waves propagate, the energy of the sound waves will be absorbed by the sound-absorbing panel 43. By setting up the whole device, it can achieve a noise elimination effect on the fan, and at the same time, it is convenient to replace the sound-absorbing panel 43, reducing the situation of removing the entire outer shell, thereby reducing the waste of operation time. When using the conduit 3, stuff the sound-absorbing cotton into the inner wall of the sealing cover 51, then push the handle 55 to drive the sealing cover 51 to move. The sealing cover 51 drives the fixed wheels 53 on the support frames 52 to rotate, and the fixed wheels 53 roll on the ground. After the sealing cover 51 is attached to the conduit 3, rotate the fixing pins 54 to the inner walls of the two sealing covers 51. By setting up the whole device, it can assist the sound-absorbing device 4 to absorb sound waves and reduce the possibility of noise transmission.

[0033] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A detachable exhaust muffler, comprising a box body (1) and a sound absorbing device (4), wherein three pads (2) are fixedly connected to the bottom end of the box body (1), and a duct (3) is connected to the side wall of the box body (1); characterized in that: A sound absorbing device (4) is provided on the inner surface of the box body (1), and the sound absorbing device (4) comprises a sealing plate (41), the sealing plate (41) is located on one side of the box body (1), a side wall of the sealing plate (41) is fixedly connected to a frame (42), a sound absorbing plate (43) is inserted into the inner surface of the frame (42), and a handle (44) is fixedly connected to one end of the sealing plate (41) away from the frame (42).

2. A detachable exhaust muffler according to claim 1, characterized in that: The bottom end of the sealing plate (41) is rotatably connected to two supporting wheels (45), and the two supporting wheels (45) are symmetrically distributed relative to the central axis of the sealing plate (41).

3. A detachable exhaust muffler according to claim 2, characterized in that: The inner surface of the frame (42) and the inner wall of the sound absorbing plate (43) are threadedly connected with positioning pins (46).

4. A detachable exhaust muffler according to claim 1, characterized in that: A support column (47) is fixedly connected to a position of the side wall of the box body (1) near the sealing plate (41), and a blocking rod (48) is rotatably connected to the surface of the support column (47), and the blocking rod (48) is located on the side wall of the sealing plate (41).

5. A detachable exhaust muffler according to claim 4, characterized in that: The stop rod (48) and the inner wall of the box body (1) are threadedly connected to a limit pin (49).

6. A detachable exhaust muffler according to claim 1, characterized in that: The surface of the sound absorbing plate (43) is provided with a plurality of through holes.

7. The detachable exhaust muffler according to claim 1, characterized in that: The surface of the conduit (3) is provided with an auxiliary device (5), and the auxiliary device (5) comprises two sealing covers (51), the two sealing covers (51) are sleeved on the surface of the conduit (3), the inner walls of the two sealing covers (51) are provided with sound-absorbing cotton, the inner walls of the two sealing covers (51) are threadedly connected with a plurality of fixing pins (54), one end of the sealing cover (51) away from the conduit (3) is fixedly connected with a handle (55), and the inner wall of the sealing cover (51) is provided with sound-absorbing cotton.

8. A detachable exhaust muffler according to claim 7, characterized in that: The surface of the sealing cover (51) is fixedly connected to two support frames (52), and the surface of the support frame (52) is rotatably connected to two fixed wheels (53).

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