CN221823905U - Automobile muffler assembly with strong shock resistance - Google Patents

Abstract

The utility model discloses an automobile silencer assembly with strong shock resistance, which comprises a silencing barrel, wherein two sides of the inner wall of the silencing barrel are respectively provided with a baffle, the top of one side opposite to the two baffles is provided with an air inlet pipe in a penetrating way, and the bottom of one side opposite to the two baffles is provided with an exhaust pipe in a penetrating way. Through gas inlet pipe, blast pipe and the gas pocket on the connecting pipe first, gas pocket second and gas pocket third, make the gas that enters into in the amortization section of thick bamboo because the length difference of four pipelines equals half of the wavelength of the sound wave that the car sent for two sound wave each other are interfered each other and are offset and weaken sound intensity when overlapping, make sound reduce, thereby play the effect of amortization, and the inner wall of intake pipe, connecting pipe and blast pipe is porous sound absorbing material, when sound wave gets into inside, a portion acoustic energy rubs in porous material's hole and converts into heat energy dissipation, make the sound wave that passes through the silencer weaken.

Description

Automobile muffler assembly with strong shock resistance

Technical Field

The utility model relates to the technical field of mufflers, in particular to an automobile muffler component with strong shock resistance.

Background Art

Automobile muffler is a special device that blocks the propagation of sound but allows airflow to pass, and prevents and controls the dynamic noise of airflow.

After searching, the patent number is CN214499217U, and the name is a utility model of a car muffler with anti-seismic function, including a muffler pipe and mounting flanges installed on both sides of the outer end surface of the muffler pipe. Through research and analysis, it is found that although the muffler component in the car muffler has the advantage of anti-seismic buffering, there are still the following disadvantages to a certain extent.

For example, the silencing effect is poor, the sound waves entering the muffler cannot be fully absorbed and converted into heat energy for dissipation, and it cannot be supported during installation. It is easy to shake when moving with the vehicle body, and cannot play a good anti-vibration role, reducing the service life of the muffler. In order to solve the above technical problems, we have designed an automobile muffler assembly with strong anti-vibration performance.

Utility Model Content

The utility model aims to provide an automobile muffler assembly with strong anti-vibration performance, which has the advantages of good silencing effect and strong anti-vibration performance, solves the problem that the sound waves entering the muffler cannot be fully absorbed, and the muffler cannot be supported during installation, and is easy to shake when moving with the vehicle body, and cannot play a good anti-vibration role.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A car muffler assembly with strong shock resistance comprises a muffler, partitions are installed on both sides of the inner wall of the muffler, an air intake pipe is penetrated through the top of the opposite side of the two partitions, an exhaust pipe is penetrated through the bottom of the opposite side of the two partitions, connecting pipes are penetrated on the front and rear sides of the opposite side of the two partitions, a shock-absorbing and silencing mechanism is installed on the inner wall of the muffler, a fixing mechanism is installed on the surface of the muffler, a first air hole is opened on the surface of the air intake pipe, a second air hole is opened on the surface of the connecting pipe, and a third air hole is opened on the surface of the exhaust pipe.

Preferably, the shock-absorbing and silencer mechanism includes a telescopic rod, one end of the telescopic rod is fixedly connected to the inner wall of the silencer, the other end of the telescopic rod is fixedly connected to the silencer plate, a buffer spring is provided on the surface of the telescopic rod, and both ends of the buffer spring are respectively fixedly connected to the inner wall of the silencer and one side of the silencer plate.

Preferably, the fixing mechanism includes a clamp one and a clamp two, and the clamp one and the clamp two are movably mounted on the surface of the silencer, and fixing rods are welded to the front and rear sides of the top of the clamp two, and a mounting plate is welded to the top of the fixing rod. Fixing bolts are inserted into the surfaces of both ends of the clamp two, and the bottom end of the fixing bolts extends to the bottom of the clamp one and is threadedly mounted with a fixing nut.

Preferably, rubber pads are provided on both the front and rear sides of the opposite side of the clamp 1 and the clamp 2, and the rubber pads are sleeved on the surface of the fixing bolt.

Preferably, the left end of the air inlet pipe passes through the left side of the muffler and is sleeved with a connecting flange welded thereon, and the right end of the exhaust pipe passes through the right side of the muffler.

Preferably, the sound-absorbing board includes a flame retardant layer one, a flame retardant layer two, a fireproof layer, a foam plastic layer, a glass fiber layer and a polyester sound-absorbing cotton layer. The inner surface of the flame retardant layer one is fixedly connected to the outer surface of the flame retardant layer two, the inner surface of the flame retardant layer two is fixedly connected to the outer surface of the fireproof layer, and the foam plastic layer, the glass fiber layer and the polyester sound-absorbing cotton layer are fixedly connected to the inner surface of the fireproof layer on one side close to the fireproof layer.

Preferably, the foam plastic layer is fixedly connected to the glass fiber layer at one side opposite to the foam plastic layer, and the glass fiber layer is fixedly connected to the polyester sound-absorbing cotton layer at one side opposite to the foam plastic layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model uses the air holes 1, 2 and 3 on the intake pipe, the exhaust pipe and the connecting pipe, so that the gas entering the muffler is equal to half the wavelength of the sound wave emitted by the car due to the difference in length of the four pipes, so that the two columns of sound waves interfere with each other when superimposed and cancel each other out to weaken the sound intensity, reduce the sound, and thus achieve the effect of silencing. In addition, the inner walls of the intake pipe, the connecting pipe and the exhaust pipe are all made of porous sound-absorbing materials. When the sound wave enters the interior, a part of the sound energy is converted into heat energy by friction in the pores of the porous material and dissipated, so that the sound wave passing through the muffler is weakened.

2. The utility model uses sound waves to impact the silencer plate and vibrate it, which will cause the buffer spring to contract and absorb energy, thereby achieving shock resistance for the silencer plate, and then buffering the sound waves to achieve shock resistance and buffering of the silencer, thereby improving the service life of the automobile silencer, and silencing is performed under the action of the porous materials of the foam plastic layer, the glass fiber layer and the polyester sound-absorbing cotton layer, further improving the silencer effect of the silencer on noise.

3. The utility model installs the mounting plate on the bottom of the vehicle, sleeves the clamp 1 and the clamp 2 on the surface of the silencer, and then passes the fixing bolts through the clamp 2 and the clamp 1 and are fixedly connected with the fixing nuts, thereby stably installing the silencer on the bottom of the vehicle, so that the silencer will not rock back and forth during the movement of the vehicle body, thereby improving the anti-vibration effect of the silencer and increasing the service life of the silencer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the utility model;

FIG2 is a partially cutaway perspective schematic diagram of the present invention;

FIG3 is a side view of a sectional perspective diagram of a sound-absorbing plate of the present invention;

FIG. 4 is a three-dimensional schematic diagram of the fixing mechanism of the present invention.

In the figure: 1. silencer; 2. partition; 3. air inlet pipe; 4. exhaust pipe; 5. connecting pipe; 6. shock-absorbing and silencer mechanism; 61. telescopic rod; 62. silencer plate; 621. flame retardant layer one; 622. flame retardant layer two; 623. fireproof layer; 624. foam plastic layer; 625. glass fiber layer; 626. polyester sound-absorbing cotton layer; 63. buffer spring; 7. fixing mechanism; 71. clamp one; 72. clamp two; 73. fixing rod; 74. mounting plate; 75. fixing bolt; 76. fixing nut; 77. rubber pad; 8. air hole one; 9. air hole two; 10. air hole three; 11. connecting flange.

DETAILED DESCRIPTION

In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention 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 a limitation on the present invention.

Please refer to Figures 1 to 4, a car muffler assembly with strong shock resistance includes a muffler 1, partitions 2 are installed on both sides of the inner wall of the muffler 1, an air intake pipe 3 is penetrated through the top of the opposite side of the two partitions 2, an exhaust pipe 4 is penetrated through the bottom of the opposite side of the two partitions 2, connecting pipes 5 are penetrated on the front and rear sides of the opposite side of the two partitions 2, a shock-absorbing and silencing mechanism 6 is installed on the inner wall of the muffler 1, a fixing mechanism 7 is installed on the surface of the muffler 1, an air hole 1 8 is opened on the surface of the air intake pipe 3, an air hole 2 9 is opened on the surface of the connecting pipe 5, and an air hole 3 10 is opened on the surface of the exhaust pipe 4.

Please refer to Figure 2. The shock-absorbing and silencer mechanism 6 includes a telescopic rod 61, one end of which is fixedly connected to the inner wall of the silencer 1. By setting the telescopic rod 61, the silencer plate 62 is guided and limited so that the silencer plate 62 can move when impacted. The other end of the telescopic rod 61 is fixedly connected to the silencer plate 62. By setting the silencer plate 62, the sound waves colliding back and forth in the silencer 1 are silenced, thereby improving the silencer effect of the silencer. A buffer spring 63 is provided on the surface of the telescopic rod 61. By setting the buffer spring 63, the silencer plate 62 is buffered and energy is absorbed to achieve shock resistance of the silencer plate 62. The two ends of the buffer spring 63 are respectively fixedly connected to the inner wall of the silencer 1 and one side of the silencer plate 62.

Please refer to Figures 1 and 4. The fixing mechanism 7 includes a clamp 1 71 and a clamp 2 72. By providing the clamp 1 71, after the fixing bolt 75 and the fixing nut 76 are connected, the muffler is supported and will not be suspended and swing back and forth. The clamp 1 71 and the clamp 2 72 are both movably sleeved on the surface of the muffler 1. The front and rear sides of the top of the clamp 2 72 are welded with fixing rods 73. By providing the fixing rods 73, the mounting plate 74 and the clamp 2 72 are connected, so that the mounting plate 74 is installed on the bottom of the vehicle to support the clamp 2 72. The top of the fixing rod 73 is welded with a mounting plate 74. The surfaces of both ends of the clamp 2 72 are plugged with fixing bolts 75. The bottom end of the fixing bolt 75 extends to the bottom of the clamp 1 71 and is threadedly sleeved with a fixing nut 76. By providing the fixing bolts 75 and the fixing nut 76, the clamp 1 71 and the clamp 2 72 are connected and fixed.

Please refer to Figure 4. Rubber pads 77 are provided on the front and rear sides of the opposite side of the clamp 1 71 and the clamp 2 72. By providing the rubber pads 77, the two ends of the clamp 1 71 and the clamp 2 72 are not easily deformed when fixed, thereby preventing the fixing bolt 75 and the fixing nut 76 from detaching from the clamp 2 72 and the clamp 1 71. The rubber pad 77 is sleeved on the surface of the fixing bolt 75.

Please refer to Figure 2. The left end of the intake pipe 3 passes through the left side of the silencer 1 and is welded with a connecting flange 11. The connecting flange 11 is provided to facilitate connection with the smoke pipe through bolts and nuts. The right end of the exhaust pipe 4 passes through the right side of the silencer 1.

Please refer to Figure 3. The sound-absorbing board 62 includes a flame retardant layer 1 621, a flame retardant layer 2 622, a fireproof layer 623, a foam plastic layer 624, a glass fiber layer 625 and a polyester sound-absorbing cotton layer 626. The inner surface of the flame retardant layer 1 621 is fixedly connected to the outer surface of the flame retardant layer 2 622, the inner surface of the flame retardant layer 2 622 is fixedly connected to the outer surface of the fireproof layer 623, and the foam plastic layer 624, the glass fiber layer 625 and the polyester sound-absorbing cotton layer 626 are fixedly connected to the inner surface of the fireproof layer 623 on one side close to the fireproof layer 623. By arranging the flame retardant layer 1 621, the flame retardant layer 2 622 and the fireproof layer 623, the flame retardant and fireproof effects are played, and the foam plastic layer 624, the glass fiber layer 625 and the polyester sound-absorbing cotton layer 626 inside are protected.

Please refer to Figure 3. The foam plastic layer 624 and the glass fiber layer 625 are fixedly connected on opposite sides, and the glass fiber layer 625 and the polyester sound-absorbing cotton layer 626 are fixedly connected on opposite sides. By arranging the foam plastic layer 624, the glass fiber layer 625 and the polyester sound-absorbing cotton layer 626, porous sound-absorbing materials are used to reduce noise, so that part of the sound energy is converted into heat energy by friction in the pores of the porous material and dissipated.

When in use, the gas entering the silencer 1 is passed through the air holes 1 8, 2 9 and 3 10 on the air intake pipe 3, the exhaust pipe 4 and the connecting pipe 5. Since the length difference of the four pipes is equal to half the wavelength of the sound wave emitted by the car, the two sound waves interfere with each other and cancel each other out when superimposed, thereby reducing the sound intensity and reducing the sound, thereby achieving the effect of silencing. When the sound wave impacts the silencer plate 62 and vibrates, the buffer spring 63 will contract and absorb energy, thereby achieving the anti-vibration of the silencer plate 62, and then achieving the buffering of the sound wave to achieve silencing. The device is provided with a seismic buffer, and silences the noise under the action of the porous materials of the foam plastic layer 624, the glass fiber layer 625 and the polyester sound-absorbing cotton layer 626, so as to further improve the noise silencing effect of the silencer. The mounting plate 74 is mounted on the bottom of the vehicle, and then the clamp 1 71 and the clamp 2 72 are sleeved on the surface of the silencer 1, and then the fixing bolt 75 is passed through the clamp 2 72 and the clamp 1 71 and fixedly connected with the fixing nut 76, so as to stably mount the silencer on the bottom of the vehicle, so that it will not shake back and forth during the movement of the vehicle body, thereby improving the seismic resistance of the silencer.

In summary: the automobile muffler assembly with strong seismic resistance, through the coordination of the muffler 1, the partition 2, the intake pipe 3, the exhaust pipe 4, the connecting pipe 5, the shock-absorbing and muffler mechanism 6, the fixing mechanism 7, the air hole 1 8, the air hole 2 9 and the air hole 3 10, solves the problem that the sound waves entering the muffler cannot be fully absorbed, and the muffler cannot be supported during installation, and is easy to shake when moving with the vehicle body, and cannot play a good seismic resistance role.

According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementations disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model. Other devices that are the same or similar to them are all within the scope of protection of the utility model.

Claims (7)

1. The utility model provides a car muffler subassembly that shock resistance is strong, includes amortization section of thick bamboo (1), its characterized in that: baffle (2) are all installed to the both sides of amortization section of thick bamboo (1) inner wall, and the top of two opposite sides of baffle (2) is run through and is provided with intake pipe (3), and the bottom of two opposite sides of baffle (2) is run through and is provided with blast pipe (4), and the front and back both sides of two opposite sides of baffle (2) are all run through and are provided with connecting pipe (5), damping and amortization mechanism (6) are installed to the inner wall of amortization section of thick bamboo (1), the surface mounting of amortization section of thick bamboo (1) has fixed establishment (7), gas pocket one (8) have been seted up on the surface of intake pipe (3), gas pocket two (9) have been seted up to the surface of connecting pipe (5), gas pocket three (10) have been seted up to the surface of blast pipe (4).

2. An automotive muffler assembly having high vibration resistance as defined in claim 1, wherein: the damping and silencing mechanism (6) comprises a telescopic rod (61), one end of the telescopic rod (61) is fixedly connected with the inner wall of the silencing barrel (1), a silencing plate (62) is fixedly connected with the other end of the telescopic rod (61), a buffer spring (63) is movably sleeved on the surface of the telescopic rod (61), and two ends of the buffer spring (63) are fixedly connected with the inner wall of the silencing barrel (1) and one side of the silencing plate (62) respectively.

3. An automotive muffler assembly having high vibration resistance as defined in claim 1, wherein: the utility model provides a fixing mechanism (7) includes clamp one (71) and clamp two (72), the surface at amortization section of thick bamboo (1) is established to the equal movable sleeve of clamp one (71) and clamp two (72), both sides all weld around clamp two (72) top have dead lever (73), the top welding of dead lever (73) has mounting panel (74), the surface at clamp two (72) both ends has all pegged graft fixing bolt (75), the bottom of fixing bolt (75) extends to the bottom of clamp one (71) and the screw sleeve is equipped with fixation nut (76).

4. A strong shock resistant automotive muffler assembly as defined in claim 3, wherein: rubber pads (77) are arranged on the front side and the rear side of one side, opposite to the first clamping hoop (71) and the second clamping hoop (72), of the fixing bolt (75), and the rubber pads (77) are sleeved on the surface of the fixing bolt.

5. An automotive muffler assembly having high vibration resistance as defined in claim 1, wherein: the left end of the air inlet pipe (3) penetrates to the left side of the silencing barrel (1) and is sleeved with a connecting flange (11), and the right end of the air outlet pipe (4) penetrates to the right side of the silencing barrel (1).

6. An automotive muffler assembly having high vibration resistance as defined in claim 2, wherein: the silencer plate (62) comprises a first flame retardant layer (621), a second flame retardant layer (622), a fireproof layer (623), a foam plastic layer (624), a glass fiber layer (625) and a polyester sound absorbing cotton layer (626), wherein the inner surface of the first flame retardant layer (621) is fixedly connected with the outer surface of the second flame retardant layer (622), the inner surface of the second flame retardant layer (622) is fixedly connected with the outer surface of the fireproof layer (623), and one side, close to the fireproof layer (623), of the foam plastic layer (624), the glass fiber layer (625) and the polyester sound absorbing cotton layer (626) is fixedly connected with the inner surface of the fireproof layer (623).

7. The automotive muffler assembly of claim 6 having high vibration resistance, wherein: the foam plastic layer (624) is fixedly connected with one side opposite to the glass fiber layer (625), and the glass fiber layer (625) is fixedly connected with one side opposite to the polyester sound absorbing cotton layer (626).