Tubular silencer with adjustable length

Abstract

The utility model relates to the technical field of tubular silencers, and discloses a length-adjustable tubular silencer which comprises a first silencing pipe, a second silencing pipe is connected in the first silencing pipe in a left-right sliding mode, an adjusting mechanism is arranged on the left side of the top of the first silencing pipe, and the adjusting mechanism comprises a driving assembly and a rotating assembly. A motor is started to enable a worm to rotate, the worm rotates to drive a worm gear to rotate so as to enable a rotating shaft to rotate, the rotating shaft drives a first bevel gear to rotate, and the first bevel gear is meshed with a second bevel gear, so that the first bevel gear drives the second bevel gear to rotate so as to enable a screw rod to rotate; and the first hush pipe and the second hush pipe are rectangular, so that the rotation of the screw rod can only drive the threaded sleeve to move left and right, the mounting lengths of the first hush pipe and the second hush pipe can be adjusted, and the requirements of different lengths can be better met.

Description

Technical Field

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

[0002] Tube silencer is a silencer designed for pipeline exhaust noise. According to the different silencer mechanisms, silencers can be divided into many types, mainly including resistive silencers, reactive silencers, impedance composite silencers, micro-perforated plate silencers, small hole silencers and active silencers.

[0003] According to application number 202221173656.X, a spliced ​​and installed tubular silencer includes a pipe and a porous protective panel sleeved inside the pipe, wherein the pipe and the porous protective panel are detachably connected, and a receiving cavity is formed between the pipe and the porous protective panel, and the receiving cavity is filled with sound-absorbing material.

[0004] The device can replace the porous protective panel and the muffler material according to the use requirements, which can not only improve the applicability, but also facilitate the maintenance of the muffler, and is extremely convenient to use. When the length of the pipe needs to be adjusted during installation, the pipe can only be cut or assembled, which wastes the installation time of the pipe. Utility Model Content

[0005] The purpose of the utility model is to provide a length-adjustable tubular muffler to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a length-adjustable tubular muffler, comprising a first muffler pipe, a second muffler pipe is slidably connected to the first muffler pipe, an adjustment mechanism is provided on the left side of the top of the first muffler pipe, and a sealing mechanism is provided on the inner wall of the first muffler pipe;

[0007] The regulating mechanism comprises a driving assembly and a rotating assembly, wherein the driving assembly is arranged on the left side of the top of the first muffler pipe, and the rotating assembly is arranged on the inner wall of the first muffler pipe;

[0008] The driving assembly includes a fixed sleeve, which is fixedly connected to the left side of the top of the first silencer pipe. A motor is fixedly connected inside the fixed sleeve, and a worm is fixedly connected to the output end of the motor. A rotating shaft is provided on the left side of the top of the first silencer pipe, a worm gear is fixedly connected to the surface of the rotating shaft near the top, and a first bevel gear is fixedly connected to the bottom end of the rotating shaft.

[0009] Preferably, the worm is meshed with the worm wheel, a hole matching the rotating shaft is opened on the left side of the top of the first silencer pipe, and the surface of the rotating shaft passes through and is rotatably connected to the hole.

[0010] Preferably, the first bevel gear is located in the middle of the inner wall of the first muffler pipe.

[0011] Preferably, the rotating assembly includes a first fixed rod, the first fixed rod is fixedly connected to the left side of the inner wall of the first silencer, the other end of the first fixed rod is fixedly connected to a fixing ring, a bearing is fixedly connected to the fixing ring, a screw is fixedly connected to the inner ring of the bearing, the left end of the screw is fixedly connected to a second bevel gear, a threaded sleeve is threadedly connected to the surface of the screw, and the second fixed rod is fixedly connected to the surface of the threaded sleeve.

[0012] Preferably, the second bevel gear is meshed with the first bevel gear, and the other end of the second fixing rod is fixedly connected to the inner wall of the second muffler pipe.

[0013] Preferably, the second fixing rod is fixedly connected to the inner wall of the second silencer pipe close to the right side.

[0014] Preferably, the sealing mechanism comprises a slide groove, the slide groove is provided on the inner wall of the first silencer pipe, a rectangular fixing ring is slidably connected to the slide groove, a sealing groove is provided on the surface of the rectangular fixing ring, and a rectangular sealing ring is arranged in the sealing groove.

[0015] Preferably, the inner ring of the rectangular fixing ring is fixedly connected to the surface of the second muffler pipe close to the left side.

[0016] Preferably, the inner ring of the rectangular sealing ring fits in the sealing groove.

[0017] Preferably, the rectangular sealing ring is slidably connected to the slide groove left and right.

[0018] Compared with the prior art, the utility model provides a length-adjustable tubular muffler, which has the following beneficial effects:

[0019] The length-adjustable tubular silencer starts the motor through the adjustment mechanism to rotate the worm, and the rotation of the worm drives the worm wheel to rotate, thereby rotating the rotating shaft, and the rotating shaft drives the first bevel gear to rotate. Since the first bevel gear is meshed with the second bevel gear, the first bevel gear drives the second bevel gear to rotate, thereby rotating the screw. Since the first silencer pipe and the second silencer pipe are both rectangular in shape, the rotation of the screw can only drive the threaded sleeve to move left and right, thereby adjusting the installation length of the first silencer pipe and the second silencer pipe, which can better meet the needs of different lengths.

[0020] The length-adjustable tubular silencer has a sealing mechanism, wherein the rectangular sealing ring is located in a sealing groove. Since the rectangular sealing ring itself is retractable, the outer side of the rectangular sealing ring will tightly fit the inner wall of the slide groove. Since the rectangular sealing ring is in the sealing groove, the second silencer pipe moves and drives the rectangular sealing ring to move, thereby sealing the gap between the first silencer pipe and the second silencer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0022] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a front cross-sectional schematic diagram of the first silencer pipe and the second silencer pipe of the utility model structure;

[0024] Figure 3 This is a schematic diagram of the structural drive assembly of the utility model;

[0025] Figure 4 This is a schematic diagram of the rotating assembly of the utility model structure;

[0026] Figure 5 This is a schematic diagram of the structural bearing of the utility model;

[0027] Figure 6 This is a schematic diagram of the sealing mechanism of the utility model structure;

[0028] Figure 7 It is a schematic diagram of a rectangular circle structure of the utility model.

[0029] In the figure: 1. first silencer; 2. second silencer; 3. adjusting mechanism; 31. driving assembly; 311. fixing sleeve; 312. motor; 313. worm; 314. rotating shaft; 315. worm wheel; 316. first bevel gear; 32. rotating assembly; 321. first fixing rod; 322. fixing ring; 323. bearing; 324. screw; 325. second bevel gear; 326. threaded sleeve; 327. second fixing rod; 4. sealing mechanism; 41. slide groove; 42. rectangular fixing ring; 43. sealing groove; 44. rectangular sealing ring. DETAILED DESCRIPTION

[0030] 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.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The utility model provides the following technical solutions: Example

[0033] See also Figure 1-5 The utility model provides a technical solution: a length-adjustable tubular muffler, comprising a first muffler pipe 1, a second muffler pipe 2 is slidably connected to the first muffler pipe 1, an adjustment mechanism 3 is arranged on the left side of the top of the first muffler pipe 1, and a sealing mechanism 4 is arranged on the inner wall of the first muffler pipe 1;

[0034] The adjustment mechanism 3 includes a driving assembly 31 and a rotating assembly 32. The driving assembly 31 is arranged on the left side of the top of the first muffler pipe 1, and the rotating assembly 32 is arranged on the inner wall of the first muffler pipe 1.

[0035] The driving assembly 31 includes a fixed sleeve 311, which is fixedly connected to the left side of the top of the first silencer 1. A motor 312 is fixedly connected inside the fixed sleeve 311, and a worm 313 is fixedly connected to the output end of the motor 312. A rotating shaft 314 is provided on the left side of the top of the first silencer 1. A worm gear 315 is fixedly connected to the surface of the rotating shaft 314 near the top, and a first bevel gear 316 is fixedly connected to the bottom end of the rotating shaft 314.

[0036] The worm 313 is meshed with the worm wheel 315 , and a hole matching the rotating shaft 314 is opened on the left side of the top of the first muffler pipe 1 , and the surface of the rotating shaft 314 passes through and is rotatably connected in the hole.

[0037] The first bevel gear 316 is located at the middle position of the inner wall of the first muffler pipe 1 .

[0038] The rotating assembly 32 includes a first fixed rod 321, which is fixedly connected to the left side of the inner wall of the first silencer 1, and the other end of the first fixed rod 321 is fixedly connected to a fixed ring 322, and a bearing 323 is fixedly connected inside the fixed ring 322. The inner ring of the bearing 323 is fixedly connected to a screw 324, and the left end of the screw 324 is fixedly connected to a second bevel gear 325. A threaded sleeve 326 is threadedly connected to the surface of the screw 324, and a second fixed rod 327 is fixedly connected to the surface of the threaded sleeve 326.

[0039] The second bevel gear 325 is meshed with the first bevel gear 316 , and the other end of the second fixing rod 327 is fixedly connected to the inner wall of the second muffler pipe 2 .

[0040] The second fixing rod 327 is fixedly connected to the inner wall of the second muffler pipe 2 close to the right side. Example

[0041] See also Figure 6-7 , and on the basis of the first embodiment, a sealing mechanism 4 is further obtained.

[0042] The sealing mechanism 4 comprises a slide groove 41 which is provided on the inner wall of the first muffler 1 . A rectangular fixing ring 42 is slidably connected to the slide groove 41 . A sealing groove 43 is provided on the surface of the rectangular fixing ring 42 . A rectangular sealing ring 44 is arranged in the sealing groove 43 .

[0043] The inner circle of the rectangular fixing ring 42 is fixedly connected to the surface of the second muffler pipe 2 near the left side.

[0044] The inner circle of the rectangular sealing ring 44 fits into the sealing groove 43 .

[0045] The rectangular sealing ring 44 is slidably connected to the slide groove 41 left and right.

[0046] In actual operation, when the device is used, the motor 312 is started to rotate the worm 313, and the rotation of the worm 313 drives the worm wheel 315 to rotate, thereby rotating the shaft 314, and the shaft 314 drives the first bevel gear 316 to rotate. Since the first bevel gear 316 is meshed with the second bevel gear 325, the first bevel gear 316 drives the second bevel gear 325 to rotate, thereby rotating the screw 324. Since the first muffler 1 and the second muffler 2 are both rectangular in shape, the rotation of the screw 324 can only drive the threaded sleeve 326 to move left and right, thereby adjusting the installation length of the first muffler 1 and the second muffler 2, which can better meet the needs of different lengths.

[0047] The rectangular sealing ring 44 is located in the sealing groove 43. Since the rectangular sealing ring 44 itself is retractable, the outer circle of the rectangular sealing ring 44 will fit tightly against the inner wall of the slide groove 41. Since the rectangular sealing ring 44 is in the sealing groove 43, when the second silencer 2 moves, the rectangular sealing ring 44 is driven to move, thereby sealing the gap between the first silencer 1 and the second silencer 2.

[0048] 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 statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A length-adjustable tubular muffler, comprising a first muffler tube (1), characterized in that: A second silencer pipe (2) is slidably connected to the first silencer pipe (1) in a left-right manner, an adjustment mechanism (3) is provided on the left side of the top of the first silencer pipe (1), and a sealing mechanism (4) is provided on the inner wall of the first silencer pipe (1); The regulating mechanism (3) comprises a driving assembly (31) and a rotating assembly (32), wherein the driving assembly (31) is arranged on the left side of the top of the first muffler pipe (1), and the rotating assembly (32) is arranged on the inner wall of the first muffler pipe (1); The driving assembly (31) comprises a fixed sleeve (311), the fixed sleeve (311) being fixedly connected to the left side of the top of the first muffler pipe (1), a motor (312) being fixedly connected inside the fixed sleeve (311), a worm (313) being fixedly connected to the output end of the motor (312), a rotating shaft (314) being arranged on the left side of the top of the first muffler pipe (1), a worm gear (315) being fixedly connected to the surface of the rotating shaft (314) near the top, and a first bevel gear (316) being fixedly connected to the bottom end of the rotating shaft (314).

2. A length-adjustable tubular muffler according to claim 1, characterized in that: The worm (313) is meshed with the worm wheel (315); a hole matching the rotating shaft (314) is opened on the left side of the top of the first muffler pipe (1); and the surface of the rotating shaft (314) passes through and is rotatably connected to the hole.

3. A length-adjustable tubular muffler according to claim 1, characterized in that: The first bevel gear (316) is located at a middle position of the inner wall of the first muffler pipe (1).

4. A length-adjustable tubular muffler according to claim 1, characterized in that: The rotating assembly (32) comprises a first fixing rod (321), the first fixing rod (321) being fixedly connected to the left side of the inner wall of the first muffler (1), the other end of the first fixing rod (321) being fixedly connected to a fixing ring (322), the fixing ring (322) being fixedly connected to a bearing (323), the inner ring of the bearing (323) being fixedly connected to a screw rod (324), the left end of the screw rod (324) being fixedly connected to a second bevel gear (325), the surface of the screw rod (324) being threadedly connected to a threaded sleeve (326), and the surface of the threaded sleeve (326) being fixedly connected to a second fixing rod (327).

5. A length-adjustable tubular muffler according to claim 4, characterized in that: The second bevel gear (325) is meshed with the first bevel gear (316), and the other end of the second fixing rod (327) is fixedly connected to the inner wall of the second muffler pipe (2).

6. A length-adjustable tubular muffler according to claim 5, characterized in that: The second fixing rod (327) is fixedly connected to the inner wall of the second muffler pipe (2) close to the right side.

7. The length-adjustable tubular muffler according to claim 1, characterized in that: The sealing mechanism (4) comprises a slide groove (41), the slide groove (41) being formed on the inner wall of the first muffler pipe (1), a rectangular fixing ring (42) being slidably connected to the slide groove (41) leftward and rightward, a sealing groove (43) being formed on the surface of the rectangular fixing ring (42), and a rectangular sealing ring (44) being arranged in the sealing groove (43).

8. A length-adjustable tubular muffler according to claim 7, characterized in that: The inner ring of the rectangular fixing ring (42) is fixedly connected to the surface of the second muffler pipe (2) close to the left side.

9. The length-adjustable tubular muffler according to claim 7, characterized in that: The inner ring of the rectangular sealing ring (44) fits into the sealing groove (43).

10. The length-adjustable tubular muffler according to claim 7, characterized in that: The rectangular sealing ring (44) is slidably connected to the slide groove (41) leftward and rightward.

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