Heat shield for postprocessor of passenger car exhaust system

Abstract

The utility model discloses a heat shield for a postprocessor of a passenger car exhaust system, which relates to the technical field of postprocessors and comprises a postprocessor shell, an inner rubber layer is movably connected to the outer side face of the middle of the postprocessor shell, and heat insulation cotton is movably connected to the outer side face of the inner rubber layer. An outer rubber layer is movably connected to the outer side face of the heat insulation cotton, an upper heat insulation plate is movably connected to the outer side face of the upper portion of the outer rubber layer, and an upper clamping piece is fixedly connected to the outer side face of the front portion of the upper heat insulation plate. Through the arrangement of the lower clamping piece and the upper clamping piece, the upper heat insulation plate and the lower heat insulation plate are convenient to disassemble and install, meanwhile, the equipment is convenient to maintain when breaking down, through the arrangement of the temperature sensing box, the temperature of the upper heat insulation plate after heat insulation can be sensed, the heat insulation effect of the upper heat insulation plate is convenient to detect, and the equipment is convenient to use. And meanwhile, an alarm can be given when the equipment has a thermal insulation fault.

Description

Technical Field

[0001] The utility model relates to the technical field of post-processors, in particular to a heat insulation cover for a post-processor of a bus exhaust system. Background Art

[0002] An engine afterprocessor is a device used to treat and purify engine exhaust emissions. It is located between the engine and the exhaust pipe, and converts harmful substances emitted into substances that are more friendly to the environment and human health through a series of chemical reactions. Types of engine afterprocessors include SCR (selective catalytic reduction) systems, DOC (oxidation reduction catalyst) systems, and DPF (particulate filter) systems. The afterprocessor generates a lot of heat when it is running, and the afterprocessor heat shield can effectively isolate this heat and reduce the temperature around the exhaust system. This helps prevent other components around the exhaust pipe, connecting pipes, and vehicle structures from being affected by overheating, extending their service life.

[0003] The heat shield and engine exhaust after-treatment device disclosed in the Chinese utility model patent application disclosure CN220203995U, although the utility model improves the heat insulation effect and ensures the lightweight characteristics of the heat shield, but during the installation process of the utility model, it is unclear how to install the heat shield, which is not convenient for subsequent disassembly and maintenance when the device fails, and the subsequent processing is relatively complicated, so there is a problem of inconvenience in disassembly and maintenance. In addition, when the utility model is running, it is impossible to measure the outside temperature of the device, and it is unclear whether the function of the device is lost after long-term use, so there is a problem of not being able to measure the outside temperature of the device. In summary, the utility model has the problems of being inconvenient for disassembly and maintenance and being unable to measure the outside temperature of the device. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a heat shield for a post-processor of a bus exhaust system, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented by the following technical scheme: comprising a post-processor housing, the middle outer side surface of the post-processor housing is movably connected to an inner rubber layer, the outer side surface of the inner rubber layer is movably connected to thermal insulation cotton, and the outer side surface of the thermal insulation cotton is movably connected to an outer rubber layer;

[0008] The upper outer side surface of the outer rubber layer is movably connected to an upper insulation plate, the front outer side surface of the upper insulation plate is fixedly connected to an upper clamping piece, the lower outer side surface of the outer rubber layer is movably connected to the lower insulation plate, the front outer side surface of the lower insulation plate is fixedly connected to the lower clamping piece, the left and right parts of the upper clamping piece are provided with a through hole, the left and right parts of the lower clamping piece are provided with a through hole, the left and right parts of the upper clamping piece are provided with a clamping slot, the left and right parts of the upper clamping piece are provided with a clamping slot, the left and right parts of the upper part of the upper clamping piece are fixedly connected to a fixing ring, the inner side surface of the fixing ring is movably connected to a connecting rod, the upper part of the connecting rod is fixedly connected to a connecting disk, the left and right parts of the upper outer periphery of the connecting disk are fixedly connected to paddles, the lower outer side surface of the connecting rod is movably connected to the through hole, the lower part of the connecting rod is fixedly connected to a cross bar, the upper part of the cross bar is movably connected to the lower clamping piece, the two ends of the cross bar are fixedly connected to clamping rods, and the outer side surface of the clamping rod is movably connected to the clamping slot;

[0009] The upper outer side surface of the upper heat insulation plate is fixedly connected with a temperature sensing box, the left inner side surface of the temperature sensing box is fixedly connected with a temperature conducting tube, the lower side of the temperature conducting tube is fixedly connected to the upper heat insulation plate, the inner side surface of the temperature conducting tube is movably connected with a movable disk, the right part of the outer side surface of the movable disk is fixedly connected with a movable rod, the left outer side surface of the movable rod is movably connected with the temperature conducting tube, the right end of the movable rod is fixedly connected with a slider, a sliding groove is provided in the middle of the right side surface of the inner wall of the temperature sensing box, the inner surface of the sliding groove is slidably connected with the slider, the right rear side surface of the movable rod is fixedly connected with a first electrode block, and the right middle part of the rear side surface of the inner wall of the temperature sensing box is fixedly connected with a second electrode block.

[0010] Optionally, the lower side of the upper heat insulation plate is movably connected to the upper side of the lower heat insulation plate, and the lower side of the upper clamp is movably connected to the upper side of the lower clamp.

[0011] Optionally, a fixed rod is fixedly connected to the rear inner side surface of the upper heat insulation board, and a middle outer side surface of the fixed rod is movably connected to the lower heat insulation board.

[0012] Optionally, a spring is movably connected to the upper surface of the fixing ring, the other end of the spring is movably connected to the connecting disk, and the upper outer side surface of the connecting rod is sleeved with the spring.

[0013] Optionally, a temperature-sensing spring is fixedly connected to the rear side of the movable plate, and a temperature-sensing box is fixedly connected to the other end of the temperature-sensing spring.

[0014] Optionally, the first electrode block is connected in series with a power supply, and the second electrode block is connected in series with an external temperature alarm and a power supply.

[0015] (III) Beneficial effects

[0016] The utility model provides a heat insulation cover for a post-processor of a passenger car exhaust system, which has the following beneficial effects:

[0017] 1. The heat shield for the after-processor of the bus exhaust system can make the upper and lower heat shields easy to disassemble and install by setting the lower clamping piece and the upper clamping piece, and it is convenient to repair when the equipment fails.

[0018] 2. The heat insulation cover of the post-processor of the bus exhaust system can sense the temperature of the upper insulation board after insulation by setting a temperature sensing box, which is convenient for detecting the insulation effect of the upper insulation board. At the same time, it can also alarm when the equipment has insulation failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 This is a rear-view stereoscopic structural schematic diagram of the utility model;

[0022] Figure 4 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 5 For this utility model Figure 4 The enlarged structural diagram at B in the middle;

[0024] Figure 6 It is a right side cross-sectional structural schematic diagram of the utility model;

[0025] Figure 7 For this utility model Figure 6 The enlarged structural diagram at C in the middle;

[0026] Figure 8 This is a schematic diagram of the cross-sectional structure of the fixed rod of the utility model;

[0027] Fig. 9 This is a schematic diagram of the cross-sectional structure of the movable rod of the utility model when viewed from above;

[0028] Fig.10 It is a rear cross-sectional structural schematic diagram of the connecting rod of the utility model.

[0029] In the figure: 1. temperature sensing box; 2. upper heat insulation board; 3. post-processor housing; 4. lower heat insulation board; 5. lower clamp; 6. upper clamp; 8. paddle; 9. connecting plate; 10. connecting rod; 11. through hole; 12. slot; 13. fixing ring; 14. spring; 15. cross bar; 16. temperature conducting tube; 17. moving plate; 18. moving rod; 19. inner rubber layer; 20. thermal insulation cotton; 21. outer rubber layer; 22. first electrode block; 23. slider; 24. temperature sensing spring; 25. fixed rod; 26. clamping rod; 27. second electrode block; 28. slide groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Example 1

[0032] See also Figures 1 to 10 The utility model provides a technical solution: a heat insulation cover for a post-processor of a bus exhaust system, comprising a post-processor housing 3, an inner rubber layer 19 is movably connected to the middle outer side of the post-processor housing 3, a thermal insulation cotton 20 is movably connected to the outer side of the inner rubber layer 19, and an outer rubber layer 21 is movably connected to the outer side of the thermal insulation cotton 20;

[0033] The upper outer side surface of the outer rubber layer 21 is movably connected with the upper heat insulation board 2, the front outer side surface of the upper heat insulation board 2 is fixedly connected with the upper clamping piece 6, the lower outer side surface of the outer rubber layer 21 is movably connected with the lower heat insulation board 4, the rear inner side surface of the upper heat insulation board 2 is fixedly connected with the fixed rod 25, the middle outer side surface of the fixed rod 25 is movably connected with the lower heat insulation board 4, the front outer side surface of the lower heat insulation board 4 is fixedly connected with the lower clamping piece 5, the lower side of the upper heat insulation board 2 is movably connected with the upper heat insulation board 4, the lower side of the upper clamping piece 6 is movably connected with the upper side of the lower clamping piece 5, the left and right parts of the upper clamping piece 6 are provided with through holes 11, the left and right parts of the lower clamping piece 5 are provided with through holes 11, the left and right parts of the upper clamping piece 6 are provided with card slots 12, the left and right parts of the lower clamping piece 5 are provided with card slots 12, the left and right parts of the upper clamping piece 6 are fixedly connected with fixing rings 13, and the fixed rings 13 are fixedly connected with the upper left and right parts of the upper clamping piece 6. The inner side surface of the fixed ring 13 is movably connected with a connecting rod 10, and a connecting disk 9 is fixedly connected to the top of the connecting rod 10. A spring 14 is movably connected to the top of the fixed ring 13, and the other end of the spring 14 is movably connected to the connecting disk 9. The upper outer side surface of the connecting rod 10 is sleeved with the spring 14, and the left and right parts of the upper outer periphery of the connecting disk 9 are fixedly connected with paddles 8. The lower outer side surface of the connecting rod 10 is movably connected to the through hole 11, and a cross bar 15 is fixedly connected to the bottom of the connecting rod 10. The top of the cross bar 15 is movably connected to the lower clamping piece 5. The two ends of the cross bar 15 are fixedly connected with a clamping rod 26, and the outer side surface of the clamping rod 26 is movably connected to the clamping groove 12. By arranging the lower clamping piece 5 and the upper clamping piece 6, the upper insulation board 2 and the lower insulation board 4 can be easily disassembled and installed, and the equipment is convenient for maintenance when a failure occurs.

[0034] When the device fails and needs to be repaired, the connecting plate 9 is pressed downward, thereby compressing the spring 14, and at the same time driving the connecting rod 10 to move downward, thereby causing the cross bar 15 to move downward, and the cross bar 15 drives the clamping rod 26 to move downward. When the clamping rod 26 leaves the clamping slot 12, the paddle 8 is rotated 90 degrees, and then the paddle 8 drives the clamping rod 26 to rotate 90 degrees through the connecting plate 9, the connecting rod 10 and the cross bar 15, and then the paddle 8 is released, the spring 14 is stretched, and the connecting rod 10, the cross bar 15 and the clamping rod 26 are driven upward through the connecting plate 9 to enter the through hole. 11, so that the cross bar 15 is in contact with the fixing ring 13, and then the lower clamping piece 5 and the upper clamping piece 6 can be separated, and the lower clamping piece 5 and the upper clamping piece 6 drive the lower heat insulation board 4 and the upper heat insulation board 2 to separate and rotate around the fixed rod 25, and then remove the lower heat insulation board 4 and the upper heat insulation board 2. At this time, the equipment can be repaired. After the maintenance is completed, the lower heat insulation board 4 and the upper heat insulation board 2 are put back in place, and the lower heat insulation board 4 and the upper heat insulation board 2 are rotated around the fixed rod 25 and contacted, so that the lower clamping piece 5 and the upper clamping piece 6 are in contact, and then the connecting plate 9 is pressed downward, and the spring 14 is compressed at this time, and the connecting plate 9 is driven The connecting rod 10 moves downward, thereby causing the cross bar 15 to move downward, and the cross bar 15 drives the clamping rod 26 to move downward. After the clamping rod 26 leaves the through hole 11, the paddle 8 is rotated 90 degrees, and then the paddle 8 drives the clamping rod 26 to rotate 90 degrees through the connecting plate 9, the connecting rod 10 and the cross bar 15. Then the paddle 8 is released, and the spring 14 stretches, driving the connecting rod 10, the cross bar 15 and the clamping rod 26 to move upward through the connecting plate 9 and enter the clamping groove 12, so that the cross bar 15 contacts the lower clamping piece 5. At this time, the reinstallation of the lower insulation board 4 and the upper insulation board 2 is completed. At this time, the spring 14 is still in a compressed state. The spring 14 has a force to urge the connecting plate 9 to move upward, which can make the cross bar 15 tend to move upward. As time goes by, the lower clamp 5 and the upper clamp 6 will be in closer contact with each other, and the lower insulation board 4 and the upper insulation board 2 will be fixed to the inner rubber layer 19 more and more tightly. As the bus runs, the post-processor housing 3 will vibrate, and the inner rubber layer 19 and the outer rubber layer 21 will buffer the vibration and reduce the damage to the insulation cotton 20. At the same time, the inner rubber layer 19 and the outer rubber layer 21 also have a heat insulation effect.

[0035] Example 2

[0036] See also Figures 1 to 10 The utility model provides a technical solution: a heat insulation cover for a post-processor of a bus exhaust system, comprising a post-processor housing 3, an inner rubber layer 19 is movably connected to the middle outer side of the post-processor housing 3, a thermal insulation cotton 20 is movably connected to the outer side of the inner rubber layer 19, and an outer rubber layer 21 is movably connected to the outer side of the thermal insulation cotton 20;

[0037] The upper outer side surface of the upper heat insulation board 2 is fixedly connected with a temperature sensing box 1, the left inner side surface of the temperature sensing box 1 is fixedly connected with a temperature conducting tube 16, the lower side of the temperature conducting tube 16 is fixedly connected to the upper heat insulation board 2, the inner side surface of the temperature conducting tube 16 is movably connected with a movable disk 17, the rear side surface of the movable disk 17 is fixedly connected with a temperature sensing spring 24, the other end of the temperature sensing spring 24 is fixedly connected with the temperature sensing box 1, the right part of the outer side surface of the movable disk 17 is fixedly connected with a movable rod 18, the outer side surface of the left end of the movable rod 18 is movably connected with the temperature conducting tube 16, the right end of the movable rod 18 is fixedly connected with a slider 23, the temperature sensing box 1 A slide groove 28 is provided in the middle of the right side surface of the inner wall, and the inner surface of the slide groove 28 is slidably connected to the slider 23. A first electrode block 22 is fixedly connected to the right rear side surface of the moving rod 18, and a second electrode block 27 is fixedly connected to the middle of the right part of the rear side surface of the inner wall of the temperature sensing box 1. The first electrode block 22 is connected in series with the power supply, and the second electrode block 27 is connected in series with the external temperature alarm and the power supply. By setting the temperature sensing box 1, the temperature of the upper insulation board 2 after insulation can be sensed, which is convenient for detecting the insulation effect of the upper insulation board 2, and an alarm can also be issued when an insulation failure occurs to the equipment.

[0038] During use, when the thermal insulation effect of the device is not ideal after long-term use, the temperature of the upper insulation board 2 will increase, and the temperature will be transmitted to the thermal tube 16. The increased temperature will cause the temperature-sensitive spring 24 to deform and stretch, thereby pushing the movable disk 17 to move backward, and the movable disk 17 drives the movable rod 18 to move backward, and the movable rod 18 drives the first electrode block 22 to move backward, and at the same time makes the slider 23 slide backward in the slide groove 28. When the first electrode block 22 contacts the second electrode block 27, the external temperature alarm will sound an alarm, indicating that the device is faulty.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat shield for a post-processor of a passenger car exhaust system, comprising a post-processor housing (3), characterized in that: The middle outer side surface of the post-processor housing (3) is movably connected to an inner rubber layer (19), the outer side surface of the inner rubber layer (19) is movably connected to a thermal insulation cotton (20), and the outer side surface of the thermal insulation cotton (20) is movably connected to an outer rubber layer (21); The upper outer side surface of the outer rubber layer (21) is movably connected to the upper heat insulation board (2), the front outer side surface of the upper heat insulation board (2) is fixedly connected to the upper clamping piece (6), the lower outer side surface of the outer rubber layer (21) is movably connected to the lower heat insulation board (4), the front outer side surface of the lower heat insulation board (4) is fixedly connected to the lower clamping piece (5), the left and right parts of the upper clamping piece (6) are provided with through holes (11), the left and right parts of the lower clamping piece (5) are provided with through holes (11), the left and right parts of the upper clamping piece (6) are provided with card slots (12), the left and right parts of the lower clamping piece (5) are provided with card slots (12), the upper left and right parts of the upper clamping piece (6) are provided with card slots (12), and the left and right parts of the upper The top of the connecting rod (10) is fixedly connected to a fixing ring (13), the inner side surface of the fixing ring (13) is movably connected to a connecting rod (10), the top of the connecting rod (10) is fixedly connected to a connecting plate (9), the left and right outer parts of the top periphery of the connecting plate (9) are fixedly connected to paddles (8), the lower outer side surface of the connecting rod (10) is movably connected to the through hole (11), the bottom of the connecting rod (10) is fixedly connected to a cross bar (15), the top of the cross bar (15) is movably connected to the lower clamping piece (5), the top of both ends of the cross bar (15) are fixedly connected to clamping rods (26), and the outer side surface of the clamping rod (26) is movably connected to the clamping groove (12); The upper outer side surface of the upper heat insulation board (2) is fixedly connected to a temperature sensing box (1), the left inner side surface of the temperature sensing box (1) is fixedly connected to a temperature conducting tube (16), the lower side of the temperature conducting tube (16) is fixedly connected to the upper heat insulation board (2), the inner side surface of the temperature conducting tube (16) is movably connected to a movable plate (17), the right side of the outer side surface of the movable plate (17) is fixedly connected to a movable rod (18), the left outer side surface of the movable rod (18) is movably connected to the temperature conducting tube (16), the right end of the movable rod (18) is fixedly connected to a slider (23), a slide groove (28) is provided in the middle of the right side surface of the inner wall of the temperature sensing box (1), the inner surface of the slide groove (28) is slidably connected to the slider (23), the right rear side surface of the movable rod (18) is fixedly connected to a first electrode block (22), and the right middle of the rear side surface of the inner wall of the temperature sensing box (1) is fixedly connected to a second electrode block (27).

2. A heat shield for a post-processor of a passenger vehicle exhaust system according to claim 1, characterized in that: The lower surface of the upper heat insulation plate (2) is movably connected to the upper surface of the lower heat insulation plate (4), and the lower surface of the upper clamping piece (6) is movably connected to the upper surface of the lower clamping piece (5).

3. The heat shield for a post-processor of a passenger vehicle exhaust system according to claim 1, characterized in that: A fixed rod (25) is fixedly connected to the rear inner side surface of the upper heat insulation board (2), and a middle outer side surface of the fixed rod (25) is movably connected to the lower heat insulation board (4).

4. A heat shield for a post-processor of a passenger vehicle exhaust system according to claim 1, characterized in that: A spring (14) is movably connected to the upper surface of the fixing ring (13), the other end of the spring (14) is movably connected to the connecting plate (9), and the upper outer side surface of the connecting rod (10) is sleeved with the spring (14).

5. The heat shield for a post-processor of a passenger vehicle exhaust system according to claim 1, characterized in that: A temperature sensing spring (24) is fixedly connected to the rear side of the movable plate (17), and a temperature sensing box (1) is fixedly connected to the other end of the temperature sensing spring (24).

6. The heat shield for a post-processor of a passenger vehicle exhaust system according to claim 1, characterized in that: The first electrode block (22) is connected in series with a power source, and the second electrode block (27) is connected in series with an external temperature alarm and a power source.

Images