Four-way symmetrical exhaust silencer shell

Abstract

The utility model relates to the technical field of exhaust silencers, in particular to a four-direction symmetrical exhaust silencer shell which comprises a main pipe, a flow dividing pipe, an air inlet pipe, a silencing assembly and an air outlet pipe. Wherein the middle inlet of the shunt pipe is communicated with the main pipe; the two silencing assemblies, the two air inlet pipes and the two air outlet pipes are in one-to-one correspondence; inlets of the two silencing assemblies are connected with outlets in the two ends of the flow dividing pipe through the two air inlet pipes in one-to-one correspondence, and outlets of the two silencing assemblies communicate with the two air outlet pipes in one-to-one correspondence. Each silencing assembly comprises two cover bodies which are symmetrically arranged, and the two cover bodies are oppositely combined together. According to the silencer, the silencer shell symmetrical in the four directions is designed, namely, the four cover bodies are completely consistent in shape, size, material and the like, so that the silencer can be formed through the same mold, the mold opening cost during silencer production and machining is reduced, the cost during silencer production and machining is reduced, and the silencer is particularly important for finished automobile enterprises.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust mufflers, and in particular to a four-way symmetrical exhaust muffler housing. Background Art

[0002] At present, exhaust mufflers are the main components for eliminating exhaust noise from automobile engines. At present, various OEMs mainly use reel structures and welded structures when designing the muffler shell structure. With the requirements of maximizing the passenger space and compacting the functional parts structure in the whole vehicle layout, and the increasing power of engines with the same displacement, the volume requirements of the muffler are increasing. The welded structure muffler has begun to gradually replace the reel structure muffler.

[0003] The muffler shell of the welded structure is formed by stamping steel plates. The two clamshell structures currently adopted by various OEMs are basically asymmetric structures, which greatly increases the mold cost and the universal road test is not fully implemented. Therefore, it is particularly urgent for vehicle manufacturers to develop an exhaust muffler shell with a simple structure and low cost. Utility Model Content

[0004] The purpose of the present application is to provide a four-way symmetrical exhaust muffler housing, which to a certain extent solves the technical problem in the prior art of needing to develop an exhaust muffler housing with a simple structure and low cost.

[0005] The present application provides a four-way symmetrical exhaust muffler housing, comprising: a main pipe, a shunt pipe, an air inlet pipe, a muffler assembly and an air outlet pipe; wherein the middle inlet of the shunt pipe is connected to the main pipe; the number of the muffler assembly, the air inlet pipe and the air outlet pipe is two, and they correspond one to one;

[0006] The inlets of the two silencer components are connected to the outlets at both ends of the diverter pipe via two corresponding air inlet pipes, and the outlets of the two silencer components are connected to two corresponding air outlet pipes; any silencer component includes two symmetrically arranged cover bodies, and the two cover bodies are matched together.

[0007] In the above technical solution, further, the silencer assembly also includes a sealing plate, which extends along the outer edges of the two cover bodies relative to each other, and the sealing plate is respectively connected to the two cover bodies by welding for sealing.

[0008] In any of the above technical solutions, further, at least a part of the structure of the air intake pipe is a bellows.

[0009] In any of the above technical solutions, further, the four-way symmetrical exhaust muffler shell also includes a fixing mechanism, and any of the outlet pipes is equipped with one fixing mechanism, which is connected to the outlet pipe and is used to hang the outlet pipe on a supporting object.

[0010] In any of the above technical solutions, further, the fixing mechanism includes a holding ring, a closing plate, a fastener, a mounting seat, an elastic support assembly and a mounting plate; wherein the number of the holding ring is one, and an opening is formed on one side of the holding ring, and the closing plates are arranged on both sides of the opening; the holding ring is sleeved on the outside of the air outlet pipe, and the two closing plates are arranged at a relative interval up and down;

[0011] The two closing plates are detachably connected via fasteners; the mounting seat is arranged on the ring structure above the air outlet pipe, and the mounting plate is connected to the mounting seat via the elastic support assembly.

[0012] In any of the above technical solutions, further, the elastic support assembly includes a support column, a sleeve and a spring; wherein the bottom of the support column is connected to the mounting seat; a limited position head is provided on the top of the support column; and the spring is sleeved on the support column;

[0013] The sleeve is connected to the mounting plate, and a raised limiting ring is provided on the inner wall of the sleeve; the sleeve is sleeved on the outside of the support column, the support column is inserted into the limiting ring, and the limiting ring can slide relative to the support column; the spring is located between the limiting head and the limiting ring.

[0014] In any of the above technical solutions, further, the elastic support assembly also includes a guide column, and the bottom of the guide column is connected to the top of the mounting seat, and the bottom of the support column is connected to the top of the guide column; part of the structure of the sleeve extends to the side of the guide column and is adapted thereto, and the sleeve can slide relative to the guide column.

[0015] In any of the above technical solutions, further, the mounting plate is arranged on the top of the sleeve.

[0016] In any of the above technical solutions, further, the four-way symmetrical exhaust muffler shell also includes a heat insulation board, and the heat insulation board is fixed to the outside of any of the cover bodies.

[0017] In any of the above technical solutions, further, the cover body is formed by stamping.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] In the present application, the muffler shell is designed to be four-way symmetrical, that is, the four covers are completely identical including shape, size and material, so they can be formed by the same mold, thereby reducing the cost of mold opening during the production and processing of the muffler, and reducing the cost of muffler production and processing, which is particularly important for vehicle manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of a four-way symmetrical exhaust muffler housing provided in an embodiment of the present application;

[0022] Figure 2 Another schematic structural diagram of a four-way symmetrical exhaust muffler housing provided in an embodiment of the present application;

[0023] Figure 3 for Figure 2 A schematic diagram of a local enlarged structure;

[0024] Figure 4 A schematic diagram of the structure of the fixing mechanism provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 1-main pipe, 2-diverter pipe, 3-inlet pipe, 31-bellows, 4-muffler assembly, 41-cover, 42-sealing plate, 5-outlet pipe, 6-fixing mechanism, 61-holding ring, 62-closing plate, 63-fastener, 64-mounting seat, 65-elastic support assembly, 651-support column, 652-limiting head, 653-sleeve, 654-spring, 655-guide column, 66-mounting plate, 7-heat insulation board. DETAILED DESCRIPTION

[0027] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0028] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0029] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Refer to the following Figures 1 to 4 A four-way symmetrical exhaust muffler housing according to some embodiments of the present application is described.

[0033] See also Figures 1 to 3 As shown, the embodiment of the present application provides a four-way symmetrical exhaust muffler housing, comprising: a main pipe 1, a shunt pipe 2, an air inlet pipe 3, a muffler assembly 4 and an air outlet pipe 5; wherein the middle inlet of the shunt pipe 2 is connected to the main pipe 1; the number of the muffler assembly 4, the air inlet pipe 3 and the air outlet pipe 5 are two, and they correspond one to one;

[0034] The inlets of the two silencer components 4 are connected to the outlets at both ends of the diversion pipe 2 via two corresponding air inlet pipes 3, and the outlets of the two silencer components 4 are connected to two corresponding air outlet pipes 5; any silencer component 4 includes two symmetrically arranged cover bodies 41, and the two are matched together.

[0035] In this embodiment, the muffler shell is designed to be four-way symmetrical, that is, the four cover bodies 41 are completely consistent including shape, size and material, so they can be formed by the same mold, thereby reducing the cost of opening the mold during the production and processing of the muffler, reducing the cost of muffler production and processing, which is particularly important for vehicle manufacturers.

[0036] In one embodiment of the present application, preferably, Figure 3 As shown, the silencer assembly 4 also includes a sealing plate 42, which extends along the outer edges of the two cover bodies 41, and the sealing plate 42 is respectively connected to the two cover bodies 41 by welding for sealing, and preferably, the sealing plate 42 avoids the air inlet pipe 3 and the air outlet pipe 5.

[0037] In this embodiment, the sealing plate 42 can be welded and sealed at the joint between the upper cover body 41, i.e., the upper cover body, and the lower cover body 41, i.e., the lower cover body, to improve the sound-absorbing effect.

[0038] In one embodiment of the present application, preferably, Figure 1 and Figure 2 As shown, at least part of the structure of the air intake pipe 3 is a bellows 31 .

[0039] In this embodiment, the reason why at least part of the structure of the intake pipe 3 is designed as a bellows 31 is mainly because the muffler will convert noise into vibration when operating, so the muffler will vibrate when operating. The muffler will cause the connection with the bypass pipe 2 to break when it vibrates for a long time, thereby reducing the service life of the exhaust pipe. Therefore, it is necessary to design a bellows 31. The bellows 31 can be used to elastically connect the connection between the muffler and the bypass pipe 2, thereby avoiding the connection breakage caused by the muffler being in a vibrating state for a long time, thereby improving the service life of the exhaust pipe.

[0040] Further, preferably, the air inlet pipe 3 includes a bellows 31, two hard pipes and a docking flange; wherein the two hard pipes are respectively connected to the two ends of the bellows 31, one of the hard pipes is connected to the outlet of the diverter pipe 2 through the docking flange, and the other hard pipe extends to between the two cover bodies 41 that are matched together and are connected. In particular, welding can be used to introduce the gas flowing out of the diverter pipe 2 into the cavity formed between the two cover bodies 41, and finally discharged from the outlet pipe 5.

[0041] In one embodiment of the present application, preferably, Figures 1 to 4 As shown, the four-way symmetrical exhaust muffler housing further includes a fixing mechanism 6. Each outlet pipe 5 is equipped with a fixing mechanism 6, which is connected to the outlet pipe 5 and is used to hang the outlet pipe 5 on a supporting object.

[0042] In this embodiment, the fixing mechanism 6 can fix the other end of the muffler.

[0043] In one embodiment of the present application, preferably, Figure 4As shown, the fixing mechanism 6 includes a holding ring 61, a closing plate 62, a fastener 63 such as a bolt and a nut, a mounting seat 64, an elastic support assembly 65 and a mounting plate 66; wherein, the number of the holding ring 61 is one, and an opening is formed on one side of the holding ring 61, and closing plates 62 are arranged on both sides of the opening; the holding ring 61 is sleeved on the outside of the air outlet pipe 5, and the two closing plates 62 are arranged at an interval in an upper and lower direction;

[0044] The two closing plates 62 are detachably connected via fasteners 63 ; the mounting seat 64 is disposed on the holding ring 61 structure above the air outlet pipe 5 , and the mounting plate 66 is connected to the mounting seat 64 via an elastic support assembly 65 .

[0045] In this embodiment, the fixing mechanism 6 can be fixed to the exhaust pipe 5 by using the holding ring 61, and can be locked by the fastener 63 to prevent the holding ring 61 from moving, which is safer and more reliable. In addition, an elastic support component 65 is designed to achieve elastic buffering, thereby ensuring the stability of the muffler during operation.

[0046] Further, preferably, the mounting seat 64 can be welded to the top of the holding ring 61, or fixed to the top of the holding ring 61 by bolts.

[0047] In one embodiment of the present application, preferably, Figure 4 As shown, the elastic support assembly 65 includes a support column 651, a sleeve 653 and a spring 654; wherein the bottom of the support column 651 is connected to the mounting seat 64; a limited position head 652 is provided on the top of the support column 651; and the spring 654 is sleeved on the support column 651;

[0048] The sleeve 653 is connected to the mounting plate 66, and a raised limiting ring is provided on the inner wall of the sleeve 653; the sleeve 653 is sleeved on the outside of the support column 651, the support column 651 is inserted into the limiting ring, and the limiting ring can slide relative to the support column 651; the spring 654 is located between the limiting head 652 and the limiting ring.

[0049] In this embodiment, the sleeve 653 can move up and down along the support column 651 together with the mounting plate 66 thereon, and the spring 654 plays a buffering role during the movement, thereby achieving elastic buffering and ensuring the stability of the muffler during operation.

[0050] In one embodiment of the present application, preferably, Figure 4 As shown, the elastic support assembly 65 also includes a guide column 655, and the bottom of the guide column 655 is connected to the top of the mounting seat 64, and the bottom of the support column 651 is connected to the top of the guide column 655; part of the structure of the sleeve 653 extends to the side of the guide column 655 and is adapted thereto, and the sleeve 653 can slide relative to the guide column 655.

[0051] In this embodiment, the guiding role of the guide column 655 in the movement of the sleeve 653 is safer and more reliable.

[0052] Further, preferably, the guide column 655, the limit head, the support column 651 and the mounting seat 64 can be an integrated structure. Of course, it is not limited to this, and can also be a split structure connected by welding.

[0053] In one embodiment of the present application, preferably, Figure 4 As shown, the mounting plate 66 is disposed on the top of the sleeve 653, the contact area between the two is larger, and the structure is more stable.

[0054] In one embodiment of the present application, preferably, Figure 3 As shown, the four-way symmetrical exhaust muffler housing further includes a heat insulation board 7 , and a heat insulation board 7 is fixed to the outside of any cover body 41 .

[0055] In this embodiment, the heat insulation board 7 plays a role of heat insulation.

[0056] In one embodiment of the present application, preferably, the cover body 41 is formed by stamping, which has higher production efficiency, especially when the four cover bodies 41 are completely consistent, only one set of stamping molds needs to be designed, thereby reducing the mold opening fee during the production and processing of the muffler, and reducing the cost of the production and processing of the muffler. Of course, it is not limited to this, and other molding methods can also be used.

[0057] In one embodiment of the present application, preferably, Figure 3 As shown, the two cover bodies 41 can present a hot water bag-like structure when matched together. Of course, it is not limited to this, and structures of other shapes can also be designed. In addition, the two cover bodies 41 can be fixed together only by welding with the sealing plate 42 after matching together, or the two can be welded first and then further welded with the sealing plate 42, etc.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A four-way symmetrical exhaust muffler housing, characterized in that: include: A main pipe, a shunt pipe, an air inlet pipe, a muffler assembly and an air outlet pipe; wherein the middle inlet of the shunt pipe is connected to the main pipe; the number of the muffler assembly, the air inlet pipe and the air outlet pipe is two, and they correspond one to one; The inlets of the two silencer assemblies are respectively connected to the outlets at both ends of the diverter pipe via the two corresponding air inlet pipes, and the outlets of the two silencer assemblies are connected to the two corresponding air outlet pipes; any silencer assembly includes two symmetrically arranged cover bodies, and the two cover bodies are matched together.

2. The four-way symmetrical exhaust muffler housing according to claim 1, characterized in that: The muffler assembly further comprises a sealing plate, which extends along the outer edges of the two cover bodies relative to each other, and the sealing plate is respectively connected with the two cover bodies by welding for sealing.

3. The four-way symmetrical exhaust muffler housing according to claim 1, characterized in that: At least a part of the air inlet pipe is a bellows.

4. The four-way symmetrical exhaust muffler housing according to claim 1, characterized in that: The four-way symmetrical exhaust muffler housing also includes a fixing mechanism, and any of the outlet pipes is equipped with one fixing mechanism, the fixing mechanism is connected to the outlet pipe, and is used to suspend the outlet pipe on a supporting object.

5. The four-way symmetrical exhaust muffler housing according to claim 4, characterized in that: The fixing mechanism comprises a holding ring, a closing plate, a fastener, a mounting seat, an elastic support assembly and a mounting plate; wherein the number of the holding ring is one, and an opening is formed on one side of the holding ring, and the closing plates are arranged on both sides of the opening; the holding ring is sleeved on the outside of the air outlet pipe, and the two closing plates are arranged at a relative interval up and down; The two closing plates are detachably connected via fasteners; the mounting seat is arranged on the structure of the holding ring above the air outlet pipe, and the mounting plate is connected to the mounting seat via the elastic support assembly.

6. The four-way symmetrical exhaust muffler housing according to claim 5, characterized in that: The elastic support assembly includes a support column, a sleeve and a spring; wherein the bottom of the support column is connected to the mounting seat; a limited position head is provided on the top of the support column; and the spring is sleeved on the support column; The sleeve is connected to the mounting plate, and a raised limiting ring is provided on the inner wall of the sleeve; the sleeve is sleeved on the outside of the support column, the support column is inserted into the limiting ring, and the limiting ring can slide relative to the support column; the spring is located between the limiting head and the limiting ring.

7. The four-way symmetrical exhaust muffler housing according to claim 6, characterized in that: The elastic support assembly also includes a guide column, and the bottom of the guide column is connected to the top of the mounting seat, and the bottom of the support column is connected to the top of the guide column; a partial structure of the sleeve extends to the side of the guide column and is adapted thereto, and the sleeve can slide relative to the guide column.

8. The four-way symmetrical exhaust muffler housing according to claim 6, characterized in that: The mounting plate is arranged on the top of the sleeve.

9. The four-way symmetrical exhaust muffler housing according to claim 1, characterized in that: The four-way symmetrical exhaust muffler shell also includes a heat insulation board, and the heat insulation board is fixed to the outside of any of the cover bodies.

10. The four-way symmetrical exhaust muffler housing according to any one of claims 1 to 9, characterized in that: The cover body is formed by stamping.

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