CN207472131U

CN207472131U - A kind of body is vortexed hush pipe

Info

Publication number: CN207472131U
Application number: CN201721625958.5U
Authority: CN
Inventors: 赵帅
Original assignee: XINYU LYUZHOU RUBBER AND PLASTIC Co Ltd
Current assignee: XINYU LYUZHOU RUBBER AND PLASTIC Co Ltd
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2018-06-08
Anticipated expiration: 2027-11-29

Abstract

The utility model is related to a kind of bodies to be vortexed hush pipe, when body emits, plays sound deadening.Containing shell, foamed aluminium, swivelling chute, centre bore, exit mechanism and bindiny mechanism, the centre bore is located at body vortex hush pipe center, the shell wraps up the air-permeable foam aluminium, swivelling chute and centre bore, the exit mechanism and the bindiny mechanism are located at the both ends of body vortex hush pipe respectively, and the exit mechanism and bindiny mechanism connect the shell respectively, the air-permeable foam aluminium wraps up the centre bore, and the swivelling chute is distributed in inside the air-permeable foam aluminium.The utility model allows air-flow rotational flow in pipe using unique design, air motion direction is gradually changed, changes the mode of air motion frequency to lower the size of sound, the utility model design is unique, good muffling effect, as muffler when emitting especially suitable for body.

Description

A kind of body is vortexed hush pipe

Technical field

The utility model is related to hush pipe technical field, more particularly to a kind of body vortex hush pipe.

Background technology

Silencer is the equipment for being used for lowering sound decibel using noise elimination mechanism, and there are many type of silencer, but study carefully it and disappear Sound mechanism, and they can be divided into six kinds of main types, i.e., dissipative muffler, reactive muffler, impedance complex formula are eliminated the noise Device, micro-perforated plate muffler, micropole diffusor and active silencer.

Dissipative muffler mainly reduces noise using sound-absorbing porous material.For rifle or antiaircraft gun either guided missile Emitter, it will usually have and be equipped with certain silencing equipment, previous silencer opens multiple apertures on pipe, this easily to disappear The sound that sound device is eliminated is limited.

Invention content

The utility model proposes that a kind of noise elimination effect is good, hush pipe when emitting for body for above deficiency.

A kind of body is vortexed hush pipe, containing shell, air-permeable foam aluminium, swivelling chute, centre bore, exit mechanism and connection machine Structure, the centre bore are located at body vortex hush pipe center, and the shell wraps up the air-permeable foam aluminium, swivelling chute And centre bore, the exit mechanism and bindiny mechanism are located at the both ends that the body is vortexed hush pipe, and the outlet machine respectively Structure and the bindiny mechanism connect the shell respectively, and the air-permeable foam aluminium wraps up the centre bore, the swivelling chute distribution Inside the air-permeable foam aluminium.

Further, the air-permeable foam aluminium be wide aperture foamed aluminium material, global shape be octagon post shapes, institute It states and swivelling chute is equipped in air-permeable foam aluminium.

Further, for the outer casing inner wall containing lines is tilted, the outlet port side of the shell is equipped with venthole, described The section of shell is octagon or circular tube body, and the effect of gas outlet setting is after the energy of air-flow is largely consumed From this discharge.

Further, the swivelling chute is an one small big arc groove, is evenly arranged in inside air-permeable foam aluminium, institute Swivelling chute is stated as noise reduction major function, when air-flow passes through swivelling chute, air-flow reduces vibration frequency with foamed aluminium wall friction.

Further, the exit mechanism is containing shelves, outlet straight tube and skewed slot is tilted, and the skewed slot oblique arrangement is in outlet On, the inclination shelves are looped around outlet straight tube surrounding, and when the effect of exit mechanism is that body passes through, the vibration of air-flow is by outlet machine Skewed slot on structure weakens.

Further, the bindiny mechanism contains main shaft and screw thread, is less than the housing diameter, the spiral shell between the main shaft Line is distributed on the outside of the main shaft, and effect is the equipment that connection needs noise reduction.

Specific embodiment is, body vortex hush pipe is mounted on the body pipe for needing to eliminate the noise, for example, rifle, big gun or Person goes out unit and puts when being body transmitting, when body passes through the centre bore of hush pipe, causes surrounding flow high vibration, sound wave to Surrounding is spread, and acoustic energy can be propagated along swivelling chute, while is gradually weakened during propagating, and general branch enters foamed aluminium In, a part continues to propagate along swivelling chute, and when by air-permeable foam aluminium, a part of acoustic energy is in the hole of air-permeable foam aluminum material It rubs in gap and is converted to thermal energy consumption and dissipates, make to weaken by the sound wave of muffler, when reaching outer casing inner wall afterwards, because of outer casing inner wall Equipped with lines, sound wave can weaken again, and air-flow is finally gone out from the gas outlet of shell one end.

Specifically, for large-scale body, such as the noise reduction of antiaircraft gun, it need to be expanded according to ratio and can be used.

The effect of the realization of the utility model is：Sound wave conrotatory turn trough in body vortex hush pipe circulates, in pipe Internal aobvious vortex flow gradually lowers sound size, while a part of sound wave is weak by drop by air-permeable foam aluminium, this unique The noise elimination effect greatlyd improve is designed, while whole body uses metal material, the environment of high temperature can be dealt with, particularly suitable as The silencer of gun, shell or body emitter.

Description of the drawings

Fig. 1 is the body vortex hush pipe cross-sectional structure schematic diagram of the utility model embodiment.

Fig. 2 is the body vortex hush pipe vertical section structure schematic diagram of the utility model embodiment.

Fig. 3 is the body vortex hush pipe structure diagram of the utility model embodiment.

Specific embodiment

The utility model is described in detail below with reference to specific embodiments and the drawings.

- 3 are please referred to Fig.1, shows that body is vortexed hush pipe, containing shell 1, air-permeable foam aluminium 3, swivelling chute 2, centre bore 4, goes out Mouth mechanism 5 and bindiny mechanism 6, the centre bore 4 are located at body vortex hush pipe center, and the shell 1 wraps up institute Air-permeable foam aluminium 3, swivelling chute 2 and centre bore 4 are stated, the exit mechanism 5 and bindiny mechanism 6 are located at body and are vortexed hush pipe respectively Both ends, and the exit mechanism 5 and bindiny mechanism 6 connect the shell respectively, and the air-permeable foam aluminium 3 wraps up the center Hole 4, the swivelling chute 2 are distributed in inside the air-permeable foam aluminium 3.

Such as Fig. 1, the cross section of body vortex hush pipe show symmetrical along X-axis, better describes body and is vortexed noise reduction The internal structure of pipe.

Such as Fig. 2, the longitudinal section of hush pipe is vortexed for body, better describes the internal junction of body vortex hush pipe Structure.

Such as Fig. 3, the structure diagram of hush pipe is vortexed for body, mainly describes body vortex noise reduction tube exterior and entirety Shape.

Air-permeable foam aluminium 3 is wide aperture foamed aluminium material, and global shape is octagon post shapes, consistent with shell 1, thoroughly Swivelling chute 2 is equipped in gas foam aluminium 3, the poroid shape of wide aperture foamed aluminium is unique and its hardness is also preferable, has as quieter material There is unique advantage.

1 inner wall of shell is containing lines 11 is tilted, and it is for sound energy consumption to tilt lines 11, and the outlet port side of shell 1 is set There is venthole 12, the section of shell 1 is octagon or circular tube body, and the effect that gas outlet 12 is set is the energy when air-flow Major part is discharged after being consumed from this.

Swivelling chute 2 is an one small big arc groove, as shown in Fig. 2, being evenly arranged in ventilative bubble along centre bore ring-type Inside foam aluminium, 2 major function of swivelling chute is noise reduction, and when air-flow passes through swivelling chute, air-flow rubs with the hole wall in foamed aluminium Wiping reduces vibration frequency.

Exit mechanism is inclined containing shelves 53, outlet straight tube 51 and skewed slot 52,52 oblique arrangement of skewed slot is tilted on outlet straight tube 51 Diagonal cleat 53 is looped around outlet 51 surrounding of straight tube, and to the effect of a protection exit, the effect of exit mechanism 5 is that body passes through When, the vibration of air-flow is weakened by the skewed slot 52 in exit mechanism 5.

Bindiny mechanism 6 contains main shaft 61 and screw thread 62, and the diameter of main shaft 61 is less than 1 diameter of shell, and screw thread 62 is distributed in 61 outside of main shaft, effect are the equipment that connection needs noise reduction.

Specific embodiment is body vortex hush pipe to be mounted on the body pipe for needing to eliminate the noise, bindiny mechanism 6 rises To connection function, go out sticking position when being connected to such as gun barrel, gun muzzle or body transmitting and put, when body passes through the center of hush pipe During hole 4, cause surrounding flow high vibration, sound wave is spread around, and acoustic energy can be propagated first along swivelling chute 2, propagate simultaneously During gradually weakened, the arcuate structure of swivelling chute 2 can allow air-flow constantly to be rotated in pipe, energy meeting in rotary course It is constantly consumed, this flow rotation shows the form of vortex, and a part of acoustic energy can be entered in air-permeable foam aluminium 3, a part Acoustic energy continues to propagate along swivelling chute 2, and when by air-permeable foam aluminium 3, a part of acoustic energy is in the hole of air-permeable foam aluminum material Middle friction and be converted to thermal energy consumption and dissipate, make to weaken by the sound wave of muffler, it is rear when reaching 1 inner wall of shell because in shell 1 Wall is equipped with lines 11, therefore sound wave can weaken again, and air-flow is finally gone out from the gas outlet of shell one end.

Advantageous effect of the utility model is：Sound wave conrotatory turn trough in body vortex hush pipe circulates, Internal aobvious vortex flow gradually lowers sound size, while a part of sound wave is weak by drop by air-permeable foam aluminium, this unique The noise elimination effect greatlyd improve is designed, while whole body can deal with the environment of high temperature, the utility model is set using metal material Meter is unique, and noise elimination effect is good, the silencer particularly suitable as gun, shell or body emitter.

Above disclosed is only a kind of the utility model preferred embodiment, cannot limit this practicality with this certainly Novel interest field, therefore the equivalent variations made according to the utility model claims, still belong to what the utility model was covered Range.

Claims

1. a kind of body is vortexed hush pipe, shell, air-permeable foam aluminium, swivelling chute, centre bore, exit mechanism and connection machine are included Structure, which is characterized in that the centre bore is located at body vortex hush pipe center, and the shell wraps up the ventilative bubble Foam aluminium, the swivelling chute and the centre bore, the exit mechanism and the bindiny mechanism are located at body vortex and disappear respectively The both ends of sound tube, and the exit mechanism and the bindiny mechanism connect the shell respectively, the air-permeable foam aluminium wraps up institute Centre bore is stated, the swivelling chute is distributed in inside the air-permeable foam aluminium.

2. body as described in claim 1 is vortexed hush pipe, which is characterized in that the air-permeable foam aluminium is wide aperture foamed aluminum materials Material, global shape is consistent with shell shape, and the swivelling chute is equipped in the air-permeable foam aluminium.

3. body as described in claim 1 is vortexed hush pipe, which is characterized in that outer casing inner wall lines containing inclination, it is described The outlet port side of shell is equipped with venthole, and the section of the shell is octagon or circular tube body.

4. body as described in claim 1 is vortexed hush pipe, which is characterized in that the swivelling chute is an one small big arc Shape slot, the swivelling chute have multiple, are evenly arranged in inside air-permeable foam aluminium.

5. body as described in claim 1 is vortexed hush pipe, which is characterized in that exit mechanism shelves containing inclination, outlet are straight Pipe and skewed slot, for the skewed slot oblique arrangement on the outlet, the inclination shelves are looped around outlet straight tube surrounding.

6. body as described in claim 1 is vortexed hush pipe, which is characterized in that the bindiny mechanism contains main shaft and screw thread, institute It states and is less than the housing diameter between main shaft, the screw thread is distributed on the outside of the main shaft.