A retractable automobile exhaust bellows

Abstract

The utility model relates to the field of exhaust bellows, and discloses a retractable automobile exhaust bellows, including an exhaust pipe body, two groups of exhaust pipe bodies are connected by a connecting hose, the outer wall of the exhaust pipe body is fixedly connected with a mounting seat, the inner wall of the mounting seat is detachably connected with a shell, the bottom of the shell is fixedly connected with a filter cartridge, the inner wall of the mounting seat is elastically connected with a clamping assembly through a reset spring a, the clamping assembly includes a limit block, one end of the reset spring a is fixedly connected to the inner wall of the mounting seat, the other end of the reset spring a is fixedly connected to the back of the limit block, the outer wall of the shell is provided with a limit groove, the back of the limit block is fixedly connected with a pull rod, the back of the clamping assembly is fixedly connected to the inner end of the pull rod, and the end of the exhaust pipe body is detachably connected with a protective sleeve. In the utility model, it is convenient to replace the filter cartridge without the need for additional disassembly and assembly tools.

Description

Technical Field

[0001] The utility model relates to the field of exhaust bellows, in particular to a telescopic automobile exhaust bellows. Background Art

[0002] The retractable automobile exhaust bellows is an important component used in the automobile exhaust system. During the driving of the car, the engine will produce exhaust gas, which needs to be discharged through the exhaust system.

[0003] The exhaust bellows in the exhaust system plays a connecting and shock-absorbing role, which can effectively reduce the impact of engine vibration on the exhaust system, and can also absorb the thermal expansion and contraction of the exhaust system during the driving of the car.

[0004] At present, the retractable automobile exhaust bellows are usually made of metal materials and have a corrugated flexible structure. This corrugated structure can expand and contract with the thermal expansion and contraction of the exhaust pipe when the engine is working, thereby reducing the stress and deformation of the exhaust pipe and preventing the exhaust pipe from cracking or being damaged due to temperature changes. In order to prevent the exhaust gas from polluting the environment, an installable filter mechanism can be set on it to reduce the pollution of the exhaust gas to the environment. However, it is mostly installed with screws and nuts, and it is troublesome to disassemble and assemble, and it needs to use additional disassembly tools. Before it is put into use, moisture or dust entering the exhaust pipe may corrode the inner wall, affecting the use effect. Therefore, a retractable automobile exhaust bellows is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a retractable automobile exhaust bellows, aiming to improve the problem in the prior art that the filter mechanism is troublesome to replace and moisture or dust enters the corrosion device when not in use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a retractable automobile exhaust bellows, comprising an exhaust pipe body, two groups of exhaust pipe bodies are connected by a connecting hose, the outer wall of the exhaust pipe body is fixedly connected to a mounting seat, the inner wall of the mounting seat is detachably connected to a shell, the bottom of the shell is fixedly connected to a filter cartridge, the inner wall of the mounting seat is elastically connected to a locking assembly via a reset spring a, the back side of the locking assembly is fixedly connected to the inner end of the pull rod, and the end of the exhaust pipe body is detachably connected to a protective cover.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the protective sleeve is fixedly connected with a slider, the outer wall of the exhaust pipe body is provided with a slide groove, the inner wall of the slider is elastically connected with a limiting bead through a return spring b, and the outer wall of the exhaust pipe body is provided with a circular groove.

[0009] As a further description of the above technical solution:

[0010] The positioning assembly includes a limit block, one end of the return spring a is fixedly connected to the inner wall of the mounting seat, the other end of the return spring a is fixedly connected to the back of the limit block, the outer wall of the shell is provided with a limit groove, and the back of the limit block is fixedly connected with a pull rod.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the pull rod is slidably connected to the inner wall of the mounting seat.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the sliding block is slidably connected to the outer wall of the sliding groove.

[0015] As a further description of the above technical solution:

[0016] One end of the return spring b is fixedly connected to the inner wall of the slider, and the other end of the return spring b is fixedly connected to the back side of the limiting bead.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the limiting bead is clamped with the inner wall of the circular groove.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the limiting block is clamped with the inner wall of the limiting groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a pull rod, when the filter cartridge needs to be replaced, the pull rod is pulled outward to release the engagement between the limit block and the limit groove, and the housing together with the filter cartridge can be pulled out of the exhaust pipe without the aid of additional disassembly tools, which makes disassembly and assembly more convenient.

[0023] 2. In the utility model, by setting a limiting bead, when installing the protective cover, the slider is aligned with the slide groove and then the protective cover is rotated to make the limiting bead slide into the circular groove, and the protective cover is fixed on the exhaust pipe to prevent moisture or dust from entering the exhaust pipe and corroding the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall front view schematic diagram of a retractable automobile exhaust bellows proposed by the utility model;

[0025] Figure 2 This is a front view schematic diagram of a retractable filter cartridge for an automobile exhaust bellows proposed by the utility model;

[0026] Figure 3 The utility model is a cross-sectional schematic diagram of a retractable protective cover for an automobile exhaust bellows.

[0027] Legend:

[0028] 1. Exhaust pipe body; 2. Connecting hose; 3. Mounting seat; 4. Outer shell; 5. Pull rod; 6. Reset spring a; 7. Limit block; 8. Limit groove; 10. Filter cartridge; 11. Protective cover; 12. Slider; 13. Slide groove; 14. Reset spring b; 15. Limit bead; 16. Circular groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 2 The utility model provides an embodiment: a retractable automobile exhaust bellows, comprising an exhaust pipe body 1, two sets of exhaust pipe bodies 1 are connected by a connecting hose 2, and the length, angle, etc. of the exhaust pipe bellows can be adjusted by connecting the hose 2. The outer wall of the exhaust pipe body 1 is fixedly connected with a mounting seat 3, and the inner wall of the mounting seat 3 is detachably connected with a shell 4, a handle is provided at the top of the shell 4, and a filter cartridge 10 is fixedly connected to the bottom of the shell 4. Harmful substances in the exhaust gas are adsorbed by the filter cartridge 10 to reduce the pollution of the exhaust gas to the air. The inner wall of the mounting seat 3 is elastically connected with a clamping assembly through a reset spring a6, and the clamping assembly includes a limit block 7, one end of the reset spring a6 is fixedly connected to the inner wall of the mounting seat 3, and the other end of the reset spring a6 is fixedly connected to the limit The back of the positioning block 7 is fixedly connected, and the positioning block 7 can squeeze the reset spring a6 to retract. At the same time, the elastic force generated by the deformation of the reset spring a6 gives the positioning block 7 a thrust in the opposite direction, prompting it to reset. The outer wall of the shell 4 is provided with a limiting groove 8, and the outer wall of the limiting block 7 is clamped with the inner wall of the limiting groove 8. After the limiting block 7 is released from the clamping connection with the limiting groove 8, the shell 4 together with the filter cartridge 10 can be pulled out for cleaning. The back of the limiting block 7 is fixedly connected with a pull rod 5, and the back of the clamping assembly is fixedly connected to the inner end of the pull rod 5. The outer wall of the pull rod 5 is slidably connected to the inner wall of the mounting seat 3. Pulling the pull rod 5 outward can drive the positioning block 7 to move outward. The end of the exhaust pipe main body 1 is detachably connected with a protective cover 11 to prevent dust from entering the exhaust pipe and corroding the inside when the exhaust pipe is not in use.

[0031] Reference Figure 1-Figure 3The inner wall of the protective sleeve 11 is fixedly connected with a slider 12, and the outer wall of the exhaust pipe body 1 is provided with a slide groove 13. The outer wall of the slider 12 is slidably connected with the outer wall of the slide groove 13. The protective sleeve 11 can be installed on the exhaust pipe body 1 by sliding the slider 12 along the slide groove 13. The inner wall of the slider 12 is elastically connected with the limiting bead 15 through the return spring b14. One end of the return spring b14 is fixedly connected with the inner wall of the slider 12, and the other end of the return spring b14 is fixedly connected with the back of the limiting bead 15. When the slider 12 slides into the slide groove 13, the outer wall sliding surface of the limiting bead 15 is affected. The inner wall of the slide groove 13 is squeezed, thereby squeezing the return spring b14 to retract. At the same time, the elastic force generated by the deformation of the return spring b14 gives the limiting bead 15 a thrust in the opposite direction, prompting it to reset. A circular groove 16 is provided on the outer wall of the exhaust pipe body 1, and the outer wall of the limiting bead 15 is engaged with the inner wall of the circular groove 16. After the slider 12 slides to the end of the slide groove 13, the protective sleeve 11 is rotated until the limiting bead 15 slides into the circular groove 16 under the action of the return spring b14, and the protective sleeve 11 is fixed on the exhaust pipe body 1 to prevent dust from entering and corroding the inner wall of the exhaust pipe.

[0032] Working principle: When the exhaust pipe is not put into use, dust or water entering may cause corrosion to the inner wall. Therefore, a protective sleeve 11 is provided to prevent dust, water vapor, etc. from entering and corroding the inner wall of the exhaust pipe. The slider 12 is slid into the slide groove 13, and then the protective sleeve 11 is rotated until the limit bead 15 slides into the circular groove 16, and the protective sleeve 11 is fixed to the exhaust pipe body 1. When removing, the protective sleeve 11 is rotated in the opposite direction, and the slider 12 is slid out along the slide groove 13, and the protective sleeve 11 is removed at the same time. After being put into use, the pollution of the exhaust gas to the environment is reduced through the filter cartridge 10. When the filter cartridge 10 needs to be removed for cleaning or replacement, the two sets of pull rods 5 are pulled outward until the limit block 7 is released from the limit groove 8, and the outer shell 4 together with the filter cartridge 10 is removed. The disassembly and assembly are relatively convenient, and no additional disassembly tools are required.

[0033] Finally, it should be noted that the above 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A retractable automobile exhaust bellows, comprising an exhaust pipe body (1), characterized in that: The two groups of exhaust pipe bodies (1) are connected via a connecting hose (2); the outer wall of the exhaust pipe body (1) is fixedly connected to a mounting seat (3); the inner wall of the mounting seat (3) is detachably connected to a housing (4); the bottom of the housing (4) is fixedly connected to a filter cartridge (10); the inner wall of the mounting seat (3) is elastically connected to a locking assembly via a return spring a (6); the back side of the locking assembly is fixedly connected to the inner end of the pull rod (5); and the end of the exhaust pipe body (1) is detachably connected to a protective sleeve (11).

2. The retractable automobile exhaust bellows according to claim 1, characterized in that: The inner wall of the protective sleeve (11) is fixedly connected with a slider (12), the outer wall of the exhaust pipe body (1) is provided with a slide groove (13), the inner wall of the slider (12) is elastically connected with a limiting bead (15) via a return spring b (14), and the outer wall of the exhaust pipe body (1) is provided with a circular groove (16).

3. The retractable automobile exhaust bellows according to claim 1, characterized in that: The positioning assembly comprises a limit block (7), one end of the return spring a (6) is fixedly connected to the inner wall of the mounting seat (3), the other end of the return spring a (6) is fixedly connected to the back of the limit block (7), a limit groove (8) is provided on the outer wall of the housing (4), and a pull rod (5) is fixedly connected to the back of the limit block (7).

4. The retractable automobile exhaust bellows according to claim 1, characterized in that: The outer wall of the pull rod (5) is slidably connected to the inner wall of the mounting seat (3).

5. The retractable automobile exhaust bellows according to claim 2, characterized in that: The outer wall of the sliding block (12) is slidably connected to the outer wall of the sliding groove (13).

6. The retractable automobile exhaust bellows according to claim 2, characterized in that: One end of the return spring b (14) is fixedly connected to the inner wall of the slider (12), and the other end of the return spring b (14) is fixedly connected to the back side of the limiting bead (15).

7. The retractable automobile exhaust bellows according to claim 2, characterized in that: The outer wall of the limiting bead (15) is clamped with the inner wall of the circular groove (16).

8. The retractable automobile exhaust bellows according to claim 3, characterized in that: The outer wall of the limiting block (7) is snap-fitted with the inner wall of the limiting groove (8).

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