A hanging device for a vehicle muffler

Abstract

This invention relates to the field of muffler technology, and more particularly to a suspension device for automotive mufflers. The invention provides a suspension device for automotive mufflers that increases the contact area between the passive hook and the rubber hanger and reduces the impact of vibration. The suspension device includes bolts, passive hooks, rubber hangers, active hooks, a muffler bracket, a reinforcing mechanism, and a supporting mechanism. The lower part of each bolt is threaded with a passive hook, and the front and rear sides of each passive hook are slidably connected to rubber hangers. A reinforcing mechanism is provided between the bolts, passive hooks, and rubber hangers. Four active hooks are connected to the reinforcing mechanism. A muffler bracket is installed between two active hooks on the same longitudinal side. A supporting mechanism is provided at the lower part of the muffler bracket. The reinforcing mechanism reduces the probability of damage to the rubber hangers, active hooks, and passive hooks, while the supporting mechanism reduces the impact of vibration; both enhance the protection of the automotive muffler.

Description

Technical Field

[0001] This invention relates to the field of muffler technology, and more particularly to a hanging device for an automotive muffler. Background Technology

[0002] A car muffler is a relatively expensive component used to reduce noise generated by a vehicle's engine. It is typically mounted on the exhaust pipe using hooks and rubber hangers. Engine vibrations can easily cause the rubber hangers near the muffler to tear or the passive hooks to break. Furthermore, the muffler's active hangers are usually welded to the edge of the muffler, and engine vibrations can further accelerate cracking at the weld joints or on the muffler's metal surface.

[0003] Patent CN103615301B discloses a suspension device for an automotive muffler, including a hook and a rubber hanger. One end of the hook passes through the mounting hole of the rubber hanger and connects to it. The hook is positioned by a notched end that fits snugly against the side of the rubber hanger. An improvement is that a limiting block is formed on the hook along the length of the hook rod, and a buckle is installed in the limiting block. The buckle fits snugly against the other side of the rubber hanger, limiting its position. Patent CN217926048U discloses a suspension structure for an automotive muffler, including a cylinder and an active hook. The active hook is used to fix the cylinder to the vehicle body. The active hook includes a fixed bracket, which is welded to the cylinder at the lower edge of the rolled edge at the end of the cylinder.

[0004] The two patents mentioned above respectively prevent the rubber hanger from twisting and deforming by changing the contact area between the hook and the rubber hanger, and increase the axial locking ability by limiting the axial movement of the rubber hanger. They also prevent weld breakage by increasing the welding area. However, these methods of changing the contact area and locking result in more vibration being transmitted to the rubber hanger, making it more prone to damage. Increasing the welding area only extends the service life and does not change the fact that the weld is likely to break easily. Therefore, a hanger device for automotive mufflers was researched that increases the contact area between the passive hook and the rubber hanger and reduces the impact of vibration, thereby reducing the probability of damage to the rubber hanger, active hook, and passive hook, and achieving the effect of protecting the automotive muffler. Summary of the Invention

[0005] To overcome the drawbacks of rubber hangers, active hooks, and passive hooks being easily damaged, this invention provides a hanger device for automobile mufflers that increases the contact area between the passive hook and the rubber hanger and reduces the impact of vibration.

[0006] A suspension device for an automotive muffler includes bolts, passive hooks, rubber hangers, active hooks, a muffler bracket, a reinforcing mechanism, and a supporting mechanism. Bolts are connected to both sides of the automotive bracket, and all bolts pass through the automotive bracket. Passive hooks are threadedly connected to the lower part of each bolt. Rubber hangers are slidably connected to both the front and rear sides of the passive hooks. The reinforcing mechanism is located between the bolts, passive hooks, and rubber hangers. Four active hooks are connected to the reinforcing mechanism. A muffler bracket is installed between two active hooks on the same longitudinal side. The muffler bracket is located below the automotive muffler, and a supporting mechanism is provided at the lower part of the muffler bracket.

[0007] As an improvement to the above solution, the reinforcement mechanism includes a fixing nut, a friction washer, a connecting sleeve, and a limiting nut. The lower part of each bolt is threaded with a fixing nut, and the lower part of each bolt is fitted with a friction washer. The friction washer is located between the fixing nut and the passive hook. The lower part of each rubber hanger is connected with a connecting sleeve. Each of the four active hooks is tightly fitted with its corresponding connecting sleeve. The front and rear sides of the passive hook are threaded with limiting nuts. The sides of the two active hooks that are close to each other are also threaded with limiting nuts. Each rubber hanger has a spare hole in the middle.

[0008] As an improvement to the above solution, the support mechanism includes rubber pads, first springs, supplementary brackets, and screws and nuts. Several first springs are connected to the top of each muffler bracket, with two first springs forming a group. A rubber pad is connected between each group of first springs. Two supplementary brackets are connected to the bottom of each muffler bracket, and screws and nuts are threaded between the two supplementary brackets on the same muffler bracket.

[0009] As an improvement to the above solution, a protection mechanism is also included. The protection mechanism includes a balance bar, a support bar, a lead screw, and a protective lead screw. A balance bar is threaded between two spare holes on the same side. The balance bar is tightly fitted with a rubber hanger. Support bars are connected to the left and right sides of the front part of the balance bar, and support bars are connected to the left and right sides of the rear part of the balance bar. Lead screws are threadedly connected to the support bars. Protective lead screws are threadedly connected between two adjacent lead screws.

[0010] As an improvement to the above solution, a protective mechanism is also included. The protective mechanism includes a protective bracket, a buffer pad, a second spring, and a protective pad. The protective bracket is connected to the bottom of the car bracket, several second springs are connected to the lower part of the protective bracket, a buffer pad is connected between the tops of the second springs, and a protective pad is connected to the upper part of the protective bracket.

[0011] As an improvement to the above solution, a warning mechanism is also included. The warning mechanism includes an upper striking block, an upper vibrating block, a loudspeaker, a connecting block, a lower striking block, and a lower vibrating block. The upper striking block is rotatably connected to both the front and rear sides of the middle of the protective bracket. The car muffler moves upward and contacts the upper striking block. The upper vibrating block is connected to the upper part of the protective bracket. The upper striking block is located below the upper vibrating block. The upper striking block moves upward and contacts the upper vibrating block. A loudspeaker is connected to the top of the upper vibrating block. A connecting block is connected between the two rubber pads. The car muffler moves downward and contacts the connecting block. The lower striking block is connected to the bottom right side of the connecting block. The lower vibrating block is connected to the lower right side of the protective bracket. A loudspeaker is also connected to the front side of the protective bracket.

[0012] As an improvement to the above solution, a fixing mechanism is also included. The fixing mechanism includes a T-shaped rod, a lever, a double-headed telescopic block, a limit block, a U-shaped frame, a single-headed telescopic block, and an elastic metal sheet. The T-shaped rod is slidably connected to the protective bracket. U-shaped frames are connected between the outer sides of the supplementary bracket on the left and the outer sides of the supplementary bracket on the right. A lever is rotatably connected between the two U-shaped frames on the same side. Limit blocks are connected to both sides of the car muffler. Double-headed telescopic blocks are connected to the upper part of the lever. The double-headed telescopic blocks cooperate with the limit blocks. A single-headed telescopic block is connected inside the T-shaped rod. The single-headed telescopic block and the protective bracket are pressed together. Elastic metal sheets are installed on the front and rear sides of the upper part of the T-shaped rod.

[0013] As an improvement to the above solution, the muffler bracket is designed in an arc shape.

[0014] The present invention has the following advantages: 1. The reinforcement mechanism can reduce the probability of damage to the rubber hanger, active hook and passive hook, and the support mechanism can reduce the impact of vibration. Both of these enhance the protection of the car muffler.

[0015] 2. By rotating the lead screw, the position of the protective lead screw can be adjusted up and down to better protect the active hook and prevent one side from tilting, which would cause the entire device to become unbalanced.

[0016] 3. Protect the car muffler with cushioning pads and protective pads to prevent damage caused by vibration.

[0017] 4. The loudspeaker amplifies the sound, reminding the driver to pay attention while driving and avoid bumps. It also alerts the driver that the car's muffler may be broken and requires the driver to stop and inspect it.

[0018] 5. When the car is traveling on a highway and experiences severe bumps, the double-headed telescopic block automatically engages with the limiting block to fix and limit the left and right sides of the car muffler, preventing the muffler from slipping out. This provides a protective measure for the driver to get out of the car for inspection later, avoiding serious damage to the valuable car muffler due to untimely maintenance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the reinforcing mechanism of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the support mechanism of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the protection mechanism of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the protective mechanism of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the warning mechanism of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0028] Figure 10 This is a three-dimensional structural cross-sectional view of the fixing mechanism portion of the present invention.

[0029] Figure 11 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0030] The labels in the diagram are as follows: 1. Car bracket; 2. Bolt; 3. Passive hook; 4. Rubber hanger; 5. Active hook; 6. Muffler bracket; 7. Car muffler; 8. Reinforcing mechanism; 81. Fixing nut; 82. Friction washer; 83. Connecting sleeve; 84. Limit nut; 85. Spare hole; 9. Support mechanism; 91. Rubber support; 92. First spring; 93. Supplementary bracket; 94. Screw and nut; 10. Protection mechanism; 101. Balance bar; 102. Support rod; 103. Lead screw; 104. 11. Protective mechanism; 111. Protective bracket; 112. Buffer pad; 113. Second spring; 114. Protective pad; 12. Warning mechanism; 121. Upper striking block; 122. Upper vibrating block; 123. Megaphone; 124. Connecting block; 125. Lower striking block; 126. Lower vibrating block; 13. Fixing mechanism; 131. T-shaped rod; 132. Lever; 133. Double-headed telescopic block; 134. Limiting block; 135. U-shaped frame; 136. Single-headed telescopic block; 137. Elastic metal sheet. Detailed Implementation

[0031] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0032] Example 1

[0033] A suspension device for an automobile muffler, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the system includes bolts 2, passive hooks 3, rubber hangers 4, active hooks 5, muffler brackets 6, a reinforcing mechanism 8, and a support mechanism 9. Passive hooks 3 are threadedly connected to both sides of the car bracket 1 via bolts 2. Rubber hangers 4 are slidably connected to both the front and rear sides of the passive hooks 3. The reinforcing mechanism 8 is located between bolts 2, passive hooks 3, and rubber hangers 4. Four active hooks 5 are connected to the reinforcing mechanism 8. A muffler bracket 6 for suspending the car muffler 7 is installed between two active hooks 5 on the same longitudinal side. The muffler bracket 6 is arc-shaped, which increases the stress area and improves vibration damping. The muffler bracket 6 is connected to the support mechanism 9, which protects the car muffler 7 from damage.

[0034] like Figure 1 and Figure 4 As shown, the reinforcing mechanism 8 includes a fixing nut 81, a friction washer 82, a connecting sleeve 83, and a limiting nut 84. The lower part of each bolt 2 is threadedly connected to a fixing nut 81, and the lower part of each bolt 2 is fitted with a friction washer 82. The friction washer 82 is located between the fixing nut 81 and the passive hook 3. Each rubber hanger 4 has a spare hole 85 in the middle, and the lower part of each rubber hanger 4 is connected to a connecting sleeve 83. The connecting sleeve 83 can increase the contact area with the rubber hanger 4, reduce damage to the rubber hanger 4, and thus reduce damage to the car muffler 7. Each of the four active hooks 5 is tightly fitted with a corresponding connecting sleeve 83. The front and rear sides of the passive hook 3 are threadedly connected to limiting nuts 84, and the sides of the two active hooks 5 that are close to each other are also threadedly connected to limiting nuts 84.

[0035] like Figure 1 and Figure 5As shown, the support mechanism 9 includes a rubber pad 91, a first spring 92, a supplementary bracket 93, and a screw and nut 94. At least three sets of first springs 92 are connected to the top of the muffler bracket 6, with each set consisting of two first springs 92. The first springs 92 can buffer the muffler 7, thereby preventing damage caused by engine vibration. A rubber pad 91 is connected between each set of first springs 92. Two supplementary brackets 93 are connected to the bottom of the muffler bracket 6. The screw and nut 94 are threadedly connected between the two supplementary brackets 93 on the same muffler bracket 6.

[0036] This automotive muffler suspension device increases the contact area between the rubber hanger 4 and the passive hook 3 and active hook 5 by installing the connecting sleeve 83 onto the rubber hanger 4, and then installing the passive hook 3 and active hook 5 onto the connecting sleeve 83. This changes the current method of directly hanging the hanger onto the hook, increasing the contact area between the rubber hanger 4 and the passive hook 3 and active hook 5, and reducing the probability of deformation and tearing of the rubber hanger 4. It also changes the current method of directly welding the muffler onto the hook by installing the muffler bracket 6 onto the active hook 5, reducing the probability of damage to the rubber hanger 4, active hook 5, and passive hook 3. Finally, by placing the automotive muffler 7 on the rubber support pad 91, it provides shock absorption for the muffler 7. The supporting force for the muffler 7 is mainly concentrated at the bottom center of the muffler bracket 6, through the rubber support pad 91 and the first spring 92. The car muffler 7 is equipped with a buffer-type suspension to reduce the impact of vibration. The concentrated support force is dispersed by the supplementary bracket 93 and screws and nuts 94 to avoid stress concentration that could cause the muffler bracket 6 to break. The friction washer 82 makes the fixing nut 81 and the passive hook 3 more secure. By tightening the limit nut 84 at both ends of the passive hook 3 and the upper end of the active hook 5, it is prevented from the rubber hanger 4 from slipping off the passive hook 3 and the active hook 5 when the car is bumpy. When the rubber hanger 4 is torn at the bottom, the connecting sleeve 83 and the active hook 5 are moved to the corresponding spare hole 85. In summary, the reinforcement mechanism 8 can reduce the probability of damage to the rubber hanger 4, the active hook 5 and the passive hook 3, and the support mechanism 9 can reduce the impact of vibration. The combination of the reinforcement mechanism 8 and the support mechanism 9 can enhance the protection of the car muffler 7.

[0037] Example 2

[0038] Based on Example 1, such as Figure 1 and Figure 6As shown, it also includes a protection mechanism 10, which includes a balance bar 101, a support bar 102, a lead screw 103, and a protective lead screw 104. The balance bar 101 is threaded between the two spare holes 85 on the same side. The rubber hanger 4 is tightly fitted with the balance bar 101. The left and right sides of the front part of the balance bar 101 are connected to the support bar 102, and the left and right sides of the rear part of the balance bar 101 are also connected to the support bar 102. The lead screw 103 is threadedly connected to the support bar 102. The protective lead screw 104 is threadedly connected between two adjacent lead screws 103. By rotating the lead screw 103, the lead screw 104 can move up and down. When the rubber hanger 4 is torn, the lead screw 104 can protect the active hook 5.

[0039] Prolonged use may cause the rubber hanger 4 to tear due to the weight of the car muffler 7. In this case, the protective screw 104 can protect the active hook 5. The position of the protective screw 104 can be adjusted up and down by rotating the screw 103 to better protect the active hook 5 and prevent one side from tilting, which would cause the entire device to become unbalanced.

[0040] like Figure 1 and Figure 7 As shown, it also includes a protective mechanism 11, which includes a protective bracket 111, a buffer pad 112, a second spring 113, and a protective pad 114. The protective bracket 111 is connected to the bottom of the car bracket 1. Several second springs 113 are connected to the lower part of the protective bracket 111. The buffer pad 112 is connected between the top ends of the second springs 113. The protective pad 114 is connected to the upper part of the protective bracket 111. The car muffler 7 will vibrate up and down. The buffer pad 112 and the protective pad 114 can protect it and prevent the car muffler 7 from being damaged.

[0041] When a car is driving, it may experience bumps, which will cause the muffler 7 to bounce up and down. The buffer pad 112 and the protective pad 114 can protect the muffler 7 from vibration and damage.

[0042] like Figure 1 and Figure 8As shown, it also includes a warning mechanism 12, which includes an upper striking block 121, an upper vibrating block 122, a loudspeaker 123, a connecting block 124, a lower striking block 125, and a lower vibrating block 126. There are two upper striking blocks 121, each rotatably connected to the center of the protective bracket 111. The car muffler 7 moves upward and contacts the upper striking block 121. The upper vibrating block 122 is connected to the upper part of the protective bracket 111 and is located above the upper striking block 121. The upper striking block 121 moves upward and contacts the upper vibrating block 122. The loudspeaker... There are two units 123. One megaphone 123 is connected to the top of the upper vibrating block 122, and the other megaphone 123 is connected to the lower front side of the protective bracket 111. The connecting block 124 is connected between the two rubber pads 91. The car muffler 7 contacts the connecting block 124 downwards. The striking block 125 is connected to the bottom right side of the connecting block 124. The lower vibrating block 126 is connected to the lower right side of the protective bracket 111. The upper striking block 121 strikes the upper vibrating block 122, and the striking block 125 strikes the lower vibrating block 126, so that people know that the road surface is bumpy and they need to pay attention while driving.

[0043] When the car is in motion, it will experience bumps, causing the car muffler 7 to vibrate. When the car muffler 7 contacts the upper striking block 121, the upper striking block 121 rotates upward and strikes the upper vibrating block 122, producing a sound. The sound is amplified by the loudspeaker 123 on the vibrating block 122. When the car muffler 7 moves downward during the bumps, the car muffler 7 drives the lower striking block 125 to move downward through the connecting block 124 and strike the lower vibrating block 126. The sound is amplified by the loudspeaker 123 on the protective bracket 111, reminding the driver to pay attention while driving and avoid bumps. It also reminds the driver that the installation of the car muffler 7 may have a breakage problem and that it is necessary to stop and check it.

[0044] like Figure 1 , Figure 9 , Figure 10 and Figure 11As shown, it also includes a fixing mechanism 13, which includes a T-shaped rod 131, a lever 132, a double-headed telescopic block 133, a limiting block 134, a U-shaped frame 135, a single-headed telescopic block 136, and an elastic metal sheet 137. The protective bracket 111 is slidably connected to the T-shaped rod 131. U-shaped frames 135 are fixedly connected to the outer sides of the supplementary bracket 93 on the left and the supplementary bracket 93 on the right. Levers 132 are connected to the U-shaped frames 135 through bearings. The left and right sides of the car muffler 7 Each lever 132 is fixedly connected to a limiting block 134. A double-headed telescopic block 133 is connected to the upper part of each lever 132. The limiting block 134 cooperates with the double-headed telescopic block 133. A single-headed telescopic block 136 is connected inside the T-shaped rod 131. The single-headed telescopic block 136 and the protective bracket 111 are pressed together. When the T-shaped rod 131 moves downward, it will squeeze the lever 132 to rotate. The lever 132 drives the double-headed telescopic block 133 to be inserted into the limiting block 134. Elastic metal plates 137 are installed on both the front and rear sides of the upper part of the T-shaped rod 131.

[0045] When a car experiences severe bumps while driving on a highway, although the loudspeaker 123 can issue an alarm, it cannot immediately stop for inspection and repair. Considering this situation, the muffler 7, during the up-and-down bumps, will cause the limiting block 134 to move downwards. The muffler 7 will then compress the buffer pad 112 downwards to contact the T-shaped rod 131. The T-shaped rod 131 will cause the single-head telescopic block 136 and the elastic metal sheet 137 to move downwards. The T-shaped rod 131 will compress the lower part of the lever 132, causing it to swing outwards, while the upper part of the lever 132 will swing inwards. When the elastic metal sheet 137 downwards and engages with the protective bracket 111... At this time, the single-head telescopic block 136 also moves to the bottom of the protective bracket 111 and pops outward, so that the T-shaped rod 131 cannot slide up and down freely on the protective bracket 111. At this time, the lever 132 drives the double-head telescopic block 133 to be inserted into the limiting block 134, which fixes and limits the left and right sides of the car muffler 7 to prevent the car muffler 7 from sliding out. This provides a pre-protection measure for the driver to get out of the car for inspection later, and avoids serious damage to the valuable car muffler 7 due to untimely maintenance. After the maintenance is completed, push the single-head telescopic block 136 forward to retract it to its original position, and the double-head telescopic block 133 can be released from the limiting block 134.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A suspension device for an automobile muffler, comprising bolts (2), passive hooks (3), and rubber hangers (4), wherein bolts (2) are connected to both sides of an automobile bracket (1), all bolts (2) passing through the automobile bracket (1), and passive hooks (3) are threadedly connected to the lower part of each bolt (2), and rubber hangers (4) are slidably connected to both the front and rear sides of the passive hooks (3), characterized in that, It also includes an active hook (5), a muffler bracket (6), a reinforcing mechanism (8) and a support mechanism (9). A reinforcing mechanism (8) is provided between the bolt (2), the passive hook (3) and the rubber hanger (4). Four active hooks (5) are connected to the reinforcing mechanism (8). A muffler bracket (6) is installed between two active hooks (5) on the same longitudinal side. The muffler bracket (6) is located below the car muffler (7). A support mechanism (9) is provided at the bottom of the muffler bracket (6). The reinforcing mechanism (8) includes a fixing nut (81), a friction washer (82), a connecting sleeve (83), and a limiting nut (84). The lower part of the bolt (2) is threaded with a fixing nut (81), and the lower part of the bolt (2) is fitted with a friction washer (82). The friction washer (82) is located between the fixing nut (81) and the passive hook (3). The lower part of the rubber hanger (4) is connected with a connecting sleeve (83). The four active hooks (5) are tightly fitted with the corresponding connecting sleeves (83). The front and rear sides of the passive hook (3) are threaded with limiting nuts (84). The sides of the two active hooks (5) that are close to each other are also threaded with limiting nuts (84). The rubber hanger (4) has a spare hole (85) in the middle. The support mechanism (9) includes a rubber pad (91), a first spring (92), a supplementary bracket (93), and a screw and nut (94). It also includes a protective mechanism (11), which includes a protective bracket (111), a buffer pad (112), a second spring (113) and a protective pad (114). The bottom of the car bracket (1) is connected to the protective bracket (111), the lower part of the protective bracket (111) is connected to several second springs (113), the tops of the second springs (113) are connected to the buffer pad (112), and the upper part of the protective bracket (111) is connected to the protective pad (114). It also includes a fixing mechanism (13), which includes a T-shaped rod (131), a lever (132), a double-headed telescopic block (133), a limit block (134), a U-shaped frame (135), a single-headed telescopic block (136), and an elastic metal sheet (137). The T-shaped rod (131) is slidably connected to the protective bracket (111). U-shaped frames (135) are connected between the outer sides of the supplementary bracket (93) on the left and the outer sides of the supplementary bracket (93) on the right. The two U-shaped frames on the same side (135) are all rotatably connected by levers (132), and limit blocks (134) are connected to both sides of the car muffler (7). Double-headed telescopic blocks (133) are connected to the upper part of levers (132). Double-headed telescopic blocks (133) cooperate with limit blocks (134). A single-headed telescopic block (136) is connected inside the T-shaped rod (131). The single-headed telescopic block (136) and the protective bracket (111) are squeezed together. Elastic metal sheets (137) are installed on the front and rear sides of the upper part of the T-shaped rod (131).

2. The suspension device for an automobile muffler as described in claim 1, characterized in that, The top of the muffler bracket (6) is connected to several first springs (92), and each pair of first springs (92) forms a group. Each group of first springs (92) is connected to a rubber pad (91). The bottom of the muffler bracket (6) is connected to two supplementary brackets (93). The two supplementary brackets (93) on the same muffler bracket (6) are connected by screws and nuts (94) in a threaded manner.

3. The suspension device for an automobile muffler as described in claim 2, characterized in that, It also includes a protection mechanism (10), which includes a balance bar (101), a support bar (102), a lead screw (103) and a protective lead screw (104). The balance bar (101) is connected between the two spare holes (85) on the same side. The balance bar (101) is tightly fitted with the rubber hanger (4). The left and right sides of the front of the balance bar (101) are connected to the support bar (102), and the left and right sides of the rear of the balance bar (101) are connected to the support bar (102). The lead screw (103) is threadedly connected to the support bar (102), and the protective lead screw (104) is threadedly connected between two adjacent lead screws (103).

4. The suspension device for an automobile muffler as described in claim 3, characterized in that, It also includes a warning mechanism (12), which includes an upper striking block (121), an upper vibrating block (122), a loudspeaker (123), a connecting block (124), a lower striking block (125), and a lower vibrating block (126). The upper striking block (121) is rotatably connected to both the front and rear sides of the middle of the protective bracket (111). The car muffler (7) moves upward and contacts the upper striking block (121). The upper vibrating block (122) is connected to the upper part of the protective bracket (111). The upper striking block (121) is located at the upper vibrating block. (122) Below, the upper striking block (121) moves upward and contacts the upper vibrating block (122). The top of the upper vibrating block (122) is connected to a loudspeaker (123). A connecting block (124) is connected between the two rubber pads (91). The car muffler (7) contacts the connecting block (124) downward. The bottom right side of the connecting block (124) is connected to the lower striking block (125). The lower right side of the protective bracket (111) is connected to the lower vibrating block (126). The front side of the protective bracket (111) is also connected to a loudspeaker (123).

5. A suspension device for an automobile muffler as described in claim 4, characterized in that, The muffler bracket (6) is set in an arc shape.

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