TWM597864U - Muffler structure improvement - Google Patents

Abstract

A structure improvement of a muffler, which is mainly composed of a muffler tube body, a locking piece, a front ring, a plurality of muffler segments, and a lock fastener; wherein, both sides of the muffler tube body are respectively provided with front internal threads With the rear internal thread, the front internal thread is tightly integrated with the locking member of the ballistic entrance. In the muffler tube, the locking member, the front ring, and the plural muffler sections are connected in sequence, and finally the locking member is used The internal thread on the other side of the muffler tube body abuts and locks the above-mentioned components to form the muffler structure improvement of this creation; this creation uses the mechanism combination to achieve a simplified muffler structure element, quick assembly and greatly reduce the cost of firing bullets. The purpose of the generated volume in decibels.

Description

Improved muffler structure

This creation is an improvement of the muffler structure, which is mainly composed of a muffler tube body, a lock piece, a front ring, a plurality of muffler segments and a lock piece lock; among them, the lock piece is provided with a lock connection external thread With a locking internal thread, both sides of the muffler tube body are respectively provided with a front internal thread and a rear internal thread, and the front internal thread is tightly screwed with the locking external thread of the locking member of the ballistic entrance; In the body, the inner side of the locking member abuts against the front edge of the front ring, and then the front ring abuts against the muffler segment. The improvement of the muffler structure of this creation can design mufflers of different lengths according to actual environmental requirements. The tube body is matched and combined with appropriate plural muffler segments; the muffler section of this creation is formed by an integrated car system, and its single body mainly includes a front muffler, a muffler ring and a rear muffler. In the plural muffler section, each muffler segment After that, the ring tightly abuts the front ring of the next muffler section; finally, the aforementioned locking member uses the inner thread on the other side of the muffler tube body to tightly abut the rear ring of the last muffler section with its inner ring surface to form this creation The muffler structure is improved; this creation uses the mechanism combination to achieve the purpose of simplifying the structure of the muffler, quick assembly and greatly reducing the volume decibel value generated when firing a bullet.

By the way, when a general firearm fires a bullet, the bullet is shot forward at a high speed by the high-energy thrust of the high-pressure gas generated after the burning of the gunpowder. The accompanying physical effect will produce a sonic impact with a high explosive volume. Violent sound reflections in the tube and sound echoes in the surrounding space after the sound waves overflow. For general firearms operations, the violent noise after a bullet is fired often causes temporary dysfunction of the operator’s ear hearing, such as tinnitus or buzzing. Hearing, in order to reduce the sound wave impact caused by the powerful gas energy generated by the burning of the gunpowder after the gunpowder is fired after the bullet is fired, the silencer is an indispensable accessory for the gun.

Regarding special combat units or special service units, in order to have excellent concealment and concealment requirements to perform any military operation or mission, a silencer is generally installed on the front end of the gun barrel to improve the foregoing. The resulting sonic impact avoids the sonic reverberation caused by the high explosive volume and the sonic reflection in the vast space, which can easily attract attention. Even the excessively large sonic wave exposes the position of the bullet at the time of firing, thereby increasing the risk of threatening your own safety; therefore Inevitably, the advantages and disadvantages of the muffler function are bound to become a key element in the tactical operation of certain firearms.

Although the conventional silencer can reduce the high explosive volume of firearms and bullets, it is still a huge sound for the human body's physiological hearing sensitivity; especially at night or in relatively open field spaces, the sonic energy overflowing from the barrel is still very high. It is easy to reverberate to a long distance by direct conduction or sound wave reflection, enough to know the position and location of the sound source through sound source identification and detection.

Furthermore, the conventional muffler cannot be adjusted in structure due to different shooting distances, and because the internal muffler chamber mechanism is complicated, it is inconvenient to repair or maintain the muffler locally and cannot be quickly assembled.

Therefore, in view of the above-mentioned shortcomings, we devote ourselves to researching and designing the system, hoping to propose a structural improvement of the muffler that can greatly reduce the decibel value of the high explosive volume generated when the bullet is fired, so as to improve the technology and military tactics of the conventional muffler. Those who provide safety and convenience for firearms operators.

The main purpose of this creation is to form an improved muffler structure, which is mainly composed of a muffler tube body, a locking piece, a front ring, a plurality of silencer segments and a locking piece; among them, the locking piece is provided There is a locking external thread and a locking internal thread. The internal locking thread is locked with the external thread of the barrel to form a ballistic entrance. Both sides of the muffler tube body are provided with a front internal thread and a rear internal thread. The internal thread is tightly screwed with the external locking thread of the ballistic entrance locking member; in the muffler tube, an inner surface of the locking member abuts against the front ring edge of the front ring, and the outer diameter of the front ring is equal to the muffler The inner diameter of the pipe body, the front ring is then connected to the muffler segment after the ring edge. The muffler structure of this creation can be modified to design different length muffler pipes according to actual environmental requirements, and then combine the front ring and appropriate plural Muffler segment: The muffler section of this creation is formed by an integrated vehicle system, and its single body mainly includes a front muffler bucket, a muffler ring and a rear muffler bucket. In the plural muffler segments, the rear edge of each muffler segment closely abuts the next one The front edge of the muffler section; finally, the aforementioned locking member is tightly locked with the internal thread of the rear section on the other side of the muffler tube body, and the inner ring edge surface closely abuts the rear edge of the last muffler section to form the muffler structure of this creation Improvement; This creation uses the mechanism combination to achieve the goal of simplifying the structural components of the muffler, being able to quickly assemble and greatly reducing the decibel value generated when firing bullets.

The second purpose of this creation is to provide an improvement to the muffler structure. As mentioned above, the muffler section is formed by an integrated vehicle. The single body mainly includes a front muffler, a muffler ring and A rear silencer bucket; wherein the front edge of the first silencer section abuts the front ring and then faces the edge. The front silencer bucket is provided with a ballistic convex column to form a ballistic cavity and stabilize the bullet’s traveling direction and rapid airflow. The silencer bucket forms a front silencer cavity on the outside of the ballistic boss. The aforementioned ballistic cavity extends to the silencer ring and enters the rear silencer in the order of straight entry, oblique expansion, and straight entry; A plurality of first silencing holes and a plurality of second silencing holes are respectively penetrated into the front silencing cavity, and the direction in which the plurality of first silencing holes and the plurality of second silencing holes penetrate the front silencing bucket obliquely into the annular surface is perpendicular to the ballistic direction; The muffler ring is provided with plural muffler grooves in the plural first muffler holes of the symmetrical outer ring of the front muffler, the plural muffler grooves are aligned with the plural first muffler holes, and the direction is parallel to the ballistic trajectory; the outer ring surface of the rear muffler continues the aforementioned The muffler ring expands obliquely backwards, forming a rear muffler cavity inside it, and pierces a plurality of rear muffler holes on the outer obliquely expanded ring surface. The direction of the plural rear muffler holes is perpendicular to the ballistic direction, and the plural rear muffler holes are symmetrical It is aligned with the plurality of second silencer holes of the front silencer bucket, and the direction is parallel to the trajectory; and the outer diameters of the front edge of the front silencer bucket, the silencer ring and the rear edge of the rear silencer bucket are equal to those of the aforementioned silencer tube body Inside diameter.

Another purpose of this creation is to provide a structural improvement of the muffler. In this creation, the locking external thread of the fastener is tightly screwed with the internal thread on the other side of the muffler tube, and the inner circumferential surface is tightly screwed. Abutting the ring edge after the last silencer segment; among them, the locking device of this creation mainly includes a locking external thread, a plurality of smoke exhaust holes, a plurality of locking holes, a ballistic outlet cavity and a ballistic exit; the locking device of this creation is from A plurality of smoke exhaust holes are pierced outward on the inner circumferential surface, and the direction of smoke exhaust is parallel to the trajectory, and a plurality of lock holes with symmetrical and larger diameters are chiseled on the outer side of the self-locking member among the plurality of smoke exhaust holes; and , The inner space of the locking external thread of the locking member forms a ballistic exit cavity, and the ballistic exit cavity is a ballistic exit through the geometric center of the locking member to provide a ballistic path and communicate with the outside.

To sum up, this creation has a complex structure that buffers the impact of sound waves through the combination of the above detailed structure, provides multi-level sound wave pressure discharge and sound wave flow space, and gradually reduces the energy of sound wave reflection and reverberation. Improved muffler structure that can be quickly assembled, cleaned, repaired and maintained, and has an excellent muffler function.

In order for your reviewer to have a further understanding and understanding of the purpose, shape, features and effects of the structure and device of this creation, a detailed description of the examples is given below.

The main purpose of this creation is to form an improved muffler structure. Please refer to Figures 1 to 6. The muffler 1 of this creation is mainly composed of a muffler tube body 10, a locking piece 20, a front ring 30, A plurality of muffler segments 40 and a locking member 50; wherein the locking member 20 is provided with a locking external thread 21 and a locking internal thread 22, the locking internal thread 22 is connected to the external thread 61 of the outer barrel 60 The locking connection forms a ballistic entrance 23, and both sides of the muffler tube body 10 are provided with a front internal thread 11 and a rear internal thread 12 respectively. The front internal thread 11 is tightly screwed with the locking external thread 21 of the locking member 20 of the ballistic entrance 23. Close; In the muffler body 10, the inner side of the locking member 20 abuts the front ring 30 to the ring edge 31, the internal space of the front ring 30 forms a front cavity 33, the outer diameter of which is equal to For the inner diameter of the muffler tube body 10, the front ring 30 faces the ring edge 32 and then abuts against the front edge 414 of the muffler section 40. The improvement of the muffler structure of this creation can design the muffler tube body 10 of different lengths according to actual environment requirements. Then combine the front ring 30 with the appropriate plural muffler section 40; the muffler section 40 of this creation is formed by an integrated car system, and its single body mainly includes a front muffler 41, a muffler ring 42 and a rear muffler 43. In the plural muffler segments 40, the rear edge 433 of each muffler segment 40 closely abuts the front edge 414 of the next muffler segment 40; finally, the aforementioned locking member 50 is tightly locked with the internal thread 12 of the rear segment on the other side of the muffler tube body 10, And the inner ring 56 surface closely abuts the rear ring 433 of the last muffler section 40 to form the improvement of the muffler structure of this creation; this creation uses the mechanism combination to achieve simplified muffler 1 structural elements, quick assembly and The purpose of greatly reducing the decibel value of the volume generated when firing a bullet.

The second purpose of this creation is to provide an improvement in the structure of the muffler. As mentioned above, the muffler section 40 is formed by an integrated vehicle. The single body mainly includes a front muffler 41 and a muffler according to the ballistic direction. The ring 42 and a rear silencer 43; wherein the front edge 414 of the first silencer section 40 abuts the front ring 30 and then faces the edge 32. The front silencer 41 is provided with a ballistic boss 411 to form a ballistic cavity 416 and stable bullet traveling direction and fast airflow. The front silencer 41 forms a front silencer cavity 415 outside the ballistic boss 411. The aforementioned ballistic cavity 416 extends to the silencer ring 42 and enters the rear silencer in the order of straight entry, diagonal expansion, and straight entry. 43; The front muffler 41 has a plurality of first muffler holes 412 and a plurality of second muffler holes 413 respectively penetrated into the front muffler cavity 415 on the ring surface of the outer obliquely in front and back, the plural first muffler holes 412 and the plural first The direction in which the two muffler holes 413 penetrate the front muffler bucket 41 obliquely into the annular surface is perpendicular to the ballistic direction; the muffler ring 42 is provided with plural muffler grooves 421 in the plural first muffler holes 412 of the symmetrical front muffler bucket 41 on its outer ring. The plurality of muffler grooves 421 are aligned with the plurality of first muffler holes 412, and the direction is parallel to the trajectory; the outer ring surface of the rear muffler 43 is connected to the muffler ring 42 and expands obliquely backwards, forming a rear muffler cavity 432 inside and A plurality of rear muffler holes 431 are penetrated on the outer obliquely expanded ring surface. The direction of the plurality of rear muffler holes 431 is perpendicular to the ballistic direction. The plurality of rear muffler holes 431 are symmetrical and aligned with the plurality of second muffler holes 413 of the front muffler 41 , And the direction is parallel to the ballistic trajectory; and, the outer diameters of the front edge 414 of the front muffler bucket 41, the muffler ring 42 and the rear edge 433 of the rear muffler bucket 43 are all equal to the inner diameter of the muffler tube body 10.

Another purpose of this creation is to provide an improvement in the structure of the muffler. In this creation, the external locking thread 51 of the locking member 50 is tightly locked with the internal thread 12 on the other side of the muffler tube body 10, and the inner ring edge The surface of 56 closely abuts the ring edge 433 behind the last silencer section 40; among them, the locking member 50 of this creation mainly includes a locking external thread 51, a plurality of smoke exhaust holes 52, a plurality of locking holes 53, a ballistic outlet 54 and A ballistic exit 55; the locking member 50 of this creation has a plurality of smoke exhaust holes 52 extending outward from the surface of the inner ring 56, and the smoke exhaust direction is parallel to the ballistic. Self-locking member 50 is selected from the plurality of smoke exhaust holes 52 A plurality of symmetrical locking holes 53 are chiseled on the outer side. The plurality of locking holes 53 are used for the subsequent maintenance and cleaning of this creation, and the components of this creation can be disassembled by tools, and can be used for this creation to be convenient under high temperature conditions after operation Quick disassembly; In addition, the inner space of the locking external thread 51 of the locking member 50 forms a ballistic exit cavity 54 which is a ballistic exit 55 through the geometric center of the locking member 50 to provide a ballistic travel path, and Externally connected.

To sum up, the muffler 1 of the creative structure combination is mainly composed of a muffler tube body 10, a locking piece 20, a front ring 30, a plurality of muffler segments 40 and a locking piece 50; among them, the The locking member 20 is provided with a locking external thread 21 and a locking internal thread 22. The locking internal thread 22 is locked with the external thread 61 of the barrel 60 to form a ballistic entrance 23. The two sides of the muffler tube 10 are respectively A front internal thread 11 and a rear internal thread 12 are provided. The front internal thread 11 is tightly screwed with the locking external thread 21 of the ballistic entrance 23 locking member 20; in the muffler tube body 10, the inner side of the locking member 20 One surface abuts the front ring edge 31 of the front ring 30. The inner space of the front ring 30 forms a front cavity 33 whose outer diameter is equal to the inner diameter of the muffler tube body 10. The edge 32 then abuts against the front edge 414 of the muffler section 40; the muffler section 40 of this creation is formed by an integrated vehicle, and its single body mainly includes a front muffler bucket 41, a muffler ring 42 and A rear muffler 43; wherein the front edge 414 of the first muffler section 40 abuts the front ring 30 and the rear edge 32. The front muffler 41 is provided with a ballistic boss 411 to form a ballistic cavity 416 and a stable The bullet travel direction and rapid air flow, the front silencer 41 forms a front silencer cavity 415 outside the ballistic boss 411. The aforementioned ballistic cavity 416 extends to the silencer ring 42 and enters the rear silencer 43 in the order of straight entry, diagonal expansion, and straight entry; The front silencing bucket 41 has a plurality of first silencing holes 412 and a plurality of second silencing holes 413 respectively penetrated into the front silencing cavity 415 on the ring surface of the outer obliquely in front and back, the plural first silencing holes 412 and the plural second silencing holes The direction of the 413 obliquely entering the ring surface of the front muffler 41 is perpendicular to the ballistic direction; the muffler ring 42 is symmetrical on its outer ring. The plural first muffler holes 412 of the front muffler 41 are provided with plural muffler grooves 421, the plural muffler The groove 421 is aligned with the plurality of first silencer holes 412, and the direction is parallel to the trajectory; the outer ring surface of the rear silencer 43 is connected to the aforementioned silencer ring 42 to expand backward, forming a rear silencer cavity 432 inside, and expanding diagonally outside of it A plurality of rear muffler holes 431 are pierced on the annular surface. The direction of the plurality of rear muffler holes 431 is perpendicular to the ballistic direction. The plurality of rear muffler holes 431 are symmetrical and aligned with the plurality of second muffler holes 413 of the front muffler 41, and the direction is Parallel to the trajectory; and, the outer diameters of the front edge 414 of the front muffler bucket 41, the muffler ring 42 and the rear edge 433 of the rear muffler bucket 43 are all equal to the inner diameter of the muffler tube body 10; The locking external thread 51 of 50 is tightly locked with the internal thread 12 of the rear section on the other side of the muffler tube body 10, and the inner ring 56 surface closely abuts the rear ring 433 of the last muffler section 40; among them, the lock of this creation The fastener 50 mainly includes a locking external thread 51, a plurality of smoke exhaust holes 52, a plurality of locking holes 53, a ballistic outlet 54 and a ballistic exit 55; the fastener 50 of the present creation penetrates outward from the surface of the inner ring 56 Set up A plurality of smoke exhaust holes 52, the exhaust direction of which is parallel to the ballistic, and the self-locking member 50 is selected from the plurality of smoke exhaust holes 52 to chisel a plurality of symmetrical and larger diameter locking holes 53, the plurality of locking holes 53 It is used for the follow-up maintenance and cleaning of this creation. The components of this creation can be disassembled with tools, and can be quickly disassembled under high temperature conditions after operation. Moreover, the inner space of the external thread 51 of the locking member 50 is locked. A ballistic exit cavity 54 is formed, and the ballistic exit cavity 54 is a ballistic exit 55 penetrating through the geometric center of the fastener 50 to provide a ballistic travel path and communicate with the outside.

It can be seen that in the improvement of the muffler structure of this creation, when the bullet leaves the barrel 60 at a high speed and enters the ballistic entrance 23, it first passes through the front cavity 33 and then sequentially enters the ballistic cavity 416 of the front muffler bucket 41 of the muffler section 40, and the muffler The ring 42 and the rear silencer 43, and the wake sound wave of the bullet in the front cavity 33 is blocked from the ballistic boss 411, and the wake sound wave passes through the plurality of first silencer holes 412 and the plurality of second silencers in the front silencer cavity 415 The hole 413 enters the rear muffler cavity 432 through the muffler groove 421 of the muffler ring 42 and the plural rear muffler holes 431 of the rear muffler 43. The energy of the wake sound wave is consumed by the effect of multiple paths in this process, and passes through each muffler section 40. The multi-path sound wave and the original overflow sound wave are out of sync with the sound wave due to the difference in the travel path. Therefore, the complex muffler section 40 has the effect of reducing the sound wave impact, so that most of the energy of the high-explosive sound wave cannot be transmitted along the ballistic travel path and gradually lost , The sound wave energy is gradually weakened in the muffler section 40 of the muffler tube body 10, so as to achieve the function and purpose of cost creation to greatly reduce the volume decibel value generated when the bullet is fired; and the internal structure of this creation is modularized The design simplifies the combined parts, and the assembly, disassembly, cleaning, maintenance and repair can be completed quickly. The combined parts can be extended and adjusted according to the operating requirements of various task environment areas to achieve simplified components, fast assembly and greatly reduce the cost of bullet firing. The purpose of producing the maximum decibel volume.

The above is only the best specific embodiment of this creation, but the structural feature of this creation is not limited to this; for example: the plural first silencer holes 412 or the plural second silencing holes 412 of the front silencer bucket 41 of the plural silence section 40 of this creation The direction in which the muffler hole 413 is inserted obliquely into the ring surface of the front muffler 41 or the outer ring surface of the plural muffler section 40 of this creation is pierced by the plural muffler holes 431 is not perpendicular to the ballistic direction Any change or modification that anyone familiar with the art can easily think of in the field of creation can be covered by the following patent scope in this case.

1: silencer 10: Silencer body 11: Front internal thread 12: Rear internal thread 20: Locking parts 21: Locking external thread 22: Locking internal thread 23: Ballistic entrance 30: Front ring 31: Forward ring 32: Backward ring 33: front cavity 40: Silence segment 41: Front Silencer 42: Silence ring 43: rear silencer 50: lock firmware 51: locking external thread 52: Smoke exhaust hole 53: lock hole 54: Ballistic out of the mouth 55: Ballistic Exit 56: inner ring 60: barrel 61: External thread 411: Ballistic Bump 412: first silencer hole 413: second silencer hole 414: Front Silencer Bucket Ring 415: front silencer cavity 416: Ballistic Cavity 421: Silence Groove 431: rear silencer hole 432: rear silencer cavity 433: Rear Silencer Bucket Ring

Figure 1 is a schematic diagram of the structure of the creative muffler improvement. Figure 2 is an exploded schematic diagram of the structural improvement of the creative silencer. Figure 3 is the AA cross-sectional schematic diagram of the improved muffler structure. Figure 4 is a three-dimensional schematic diagram of the muffler section in the improvement of the creative muffler structure. Figure 5A is a three-dimensional schematic diagram of the locking member in the improvement of the muffler structure. Figure 5B is a three-dimensional diagram of the other side of the lock in the improvement of the muffler structure. Figure 5C is a schematic longitudinal cross-sectional view of the lock member in the improvement of the muffler structure. Figure 5D is a schematic longitudinal section of the lock member from another angle in the structural improvement of the muffler created. Figure 6 is a schematic diagram of the combination of the improved muffler structure and the barrel.

1: silencer

10: Silencer body

11: Front internal thread

20: Locking parts

21: Locking external thread

30: Front ring

41: Front Silencer

42: Silence ring

43: rear silencer

50: lock firmware

52: Smoke exhaust hole

53: lock hole

55: Ballistic Exit

412: first silencer hole

413: second silencer hole

421: Silence Groove

433: Rear Silencer Bucket Ring

Claims (5)

A structural improvement of a muffler, the main components of which include: A muffler tube body: the front and rear internal threads are provided on both sides of the muffler tube body; A locking member: the locking member is provided with a locking external thread and a locking internal thread, the locking internal thread is locked with the outer thread of the outer barrel to form a ballistic entrance, and the locking external thread is connected to the aforementioned silencer The internal thread of the front section of the pipe body is tightly screwed; A front ring: the internal space of the front ring forms a front cavity, and the front and rear sides of the front ring respectively have a forward ring edge and a rearward ring edge. The forward ring edge abuts against the inner side surface of the locking member. The outer diameter is equal to the inner diameter of the above-mentioned muffler tube body; Plural muffler segment: The plural muffler segments are formed by an integrated vehicle system respectively. The muffler segment mainly includes a front muffler bucket, a muffler ring and a rear muffler bucket; wherein the front muffler bucket has a front edge, and the plural The front ring of the muffler before the first muffler section abuts the front ring and then faces the ring; the front muffler is provided with a ballistic boss to form a ballistic cavity, which is in the order of straight entry, diagonal expansion, and straight entry Extend to the muffler ring and enter the rear muffler. The front muffler forms a front muffler cavity on the outside of the ballistic boss. The front muffler has a plurality of first muffler holes and a plurality of second muffler holes in the front and back of the ring surface of the front muffler. The muffler hole enters the front muffler cavity, and the direction in which the plural first muffler holes and the plural second muffler holes penetrate into the ring surface of the front muffler obliquely is perpendicular to the ballistic direction; the muffler ring is provided with plural muffler grooves on its outer ring , And symmetrical and aligned with the plural first silencer holes of the front silencer, and the direction is parallel to the trajectory; the outer ring surface of the rear silencer continues the aforementioned silencer ring to expand backwards, forming a rear silencer cavity inside and obliquely on the outside A plurality of rear silencer holes are pierced on the expanded ring surface, and the direction of the plurality of rear silencer holes is perpendicular to the ballistic direction. The plural rear silencer holes are symmetrical and aligned with the plurality of second silencer holes of the front silencer bucket, and the direction is parallel to the ballistic direction. The silencer bucket after each silencer segment has a rear edge; and, the outer diameters of the front edge of the front silencer bucket, the silencer ring and the rear edge of the rear silencer bucket are all equal to the inner diameter of the aforementioned silencer tube. After that, the ring closely abuts the front ring of the next silencer; A locking member: the locking member mainly includes a locking external thread, a plurality of smoke exhaust holes, a plurality of locking holes, a ballistic exit cavity and a ballistic exit. The locking external thread of the locking member is on the other side of the muffler tube body The inner thread of the latter section is tightly locked and screwed together, and its inner peripheral surface closely abuts the rear peripheral edge of the last muffler section; the lock piece has a plurality of smoke exhaust holes pierced from the inner peripheral surface outwards, and the smoke exhaust direction is Parallel to the trajectory; the inner space of the locking external thread of the locking member forms a ballistic exit cavity, and the ballistic exit cavity is a ballistic exit through the geometric center of the locking member to provide a ballistic travel path and communicate with the outside. The muffler structure improvement described in item 1 of the scope of patent application, in which the plural first muffler holes of the front muffler bucket of the plural muffler section of this creation are obliquely inserted into the ring surface through the direction of the front muffler section, which is different from the ballistic direction Into a vertical. The muffler structure improvement described in item 1 of the scope of patent application, in which the plural second muffler holes of the front muffler bucket of the plural muffler segments of this creation are obliquely inserted into the ring surface through the direction of the front muffler section, which is different from the ballistic direction Into a vertical. The muffler structure improvement described in item 1 of the scope of patent application, wherein the direction of the outer ring surface of the muffler bucket after the plural muffler segments of this creation is pierced with the plural muffler holes is not perpendicular to the ballistic direction. The muffler structure improvement described in item 1 of the scope of patent application, wherein the locking member of this creation selects the self-locking member to chisel a plurality of locking holes with symmetrical and larger apertures in the plurality of exhaust holes.

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