Heat shield for automobile catalytic converter

Abstract

The utility model relates to the technical field of catalytic converter heat insulation covers, and discloses an automobile catalytic converter heat insulation cover which solves the problems that an existing automobile catalytic converter heat insulation cover is not convenient to disassemble quickly according to using requirements, and the using efficiency of a catalytic converter is affected. According to the catalytic converter, the rotating plate is rotated towards one side, the rotating plate drives the clamping block to move, the clamping block is not fixedly connected with the clamping groove any more, the round rod is rotated, the round rod rotates in the threaded hole, the clamping block is clamped in the clamping groove, and the clamping block is clamped in the clamping groove. Under the cooperation of a threaded groove, a round rod moves from the interior of a threaded hole to the exterior, the round rod moves to drive a rotating plate to move, then a spring is pressed and compressed, and a second heat insulation cover is moved towards one side, so that the first heat insulation cover and the second heat insulation cover are separated, and the first heat insulation cover and the second heat insulation cover are conveniently and rapidly mounted and dismounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalyst heat insulation covers, in particular to a car catalyst heat insulation cover. Background Art

[0002] The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC and NOX emitted from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. When the high-temperature automobile exhaust passes through the purification device, the purifier in the three-way catalytic converter will enhance the activity of the three gases CO, HC and NOX, and promote them to undergo certain oxidation-reduction chemical reactions, among which CO is oxidized into colorless, non-toxic carbon dioxide gas at high temperature, HC compounds are oxidized into water (H20) and carbon dioxide at high temperature, and NOX is reduced into nitrogen and oxygen. The three harmful gases are turned into harmless gases, which purifies the automobile exhaust. When the engine is running, the airflow discharged from the exhaust system is at a high temperature. In order to prevent the rubber parts around the three-way catalytic converter from aging and failing due to high temperature, a heat shield is generally set outside the three-way catalytic converter to play a role in heat insulation, noise prevention and protection. The heat shield is generally set in an annular structure and fixed on the outside of the catalyst. When the heat shield needs to be disassembled and replaced after long-term use, it is inconvenient. The entire three-way catalytic converter needs to be disassembled before the heat shield can be removed, which wastes time and affects the use of the catalyst. However, such a car catalyst heat shield is not convenient for quick disassembly according to usage requirements, which affects the efficiency of the catalyst. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an automobile catalyst heat shield, which effectively solves the problem that the automobile catalyst heat shield is not easy to be quickly disassembled according to the use requirements, which affects the use efficiency of the catalyst.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat shield for automobile catalyst, comprising a catalyst body, wherein a first heat shield and a second heat shield are sleeved on both sides of the outside of the catalyst body, the first heat shield and the second heat shield are clamped together, both sides of the outside of the first heat shield are connected with mounting components, the mounting components include fixing seats installed on both sides of the first heat shield, both sides of the outside of the fixing seat are provided with card slots, and the lower end of the fixing seat is provided with a threaded hole.

[0005] Preferably, support plates are connected to both sides of the exterior of the second heat shield, a round rod is penetrated and connected to the upper end of the support plate, a pull ring is connected to the lower end of the round rod, a threaded groove is opened on one side of the exterior of the round rod, and a rotating plate is sleeved on the exterior of the round rod.

[0006] Preferably, blocks are connected to both sides of the rotating plate, the blocks are located inside the slots, a spring is sleeved on the outside of the round rod, one end of the spring is connected to one side of the rotating plate, and the other end of the spring is rotatably connected to one side of the support plate.

[0007] Preferably, the first heat shield and the second heat shield are both connected to a rock wool sleeve on the inner side, one end of the rock wool sleeve is connected to a ceramic plate, one side of the ceramic plate is in contact with the outside of the catalyst body, and one end of the first heat shield and the second heat shield are both penetrated by heat dissipation holes.

[0008] Preferably, a slide groove is provided at one end of the first heat insulation cover, a sliding block is connected inside the slide groove, and one end of the sliding block is connected to one side of the second heat insulation cover.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model, through the arrangement of the installation component, rotates the rotating plate to one side, the rotating plate drives the clamping block to move, so that the clamping block is no longer fixedly connected with the clamping groove, rotates the round rod, and the round rod rotates inside the threaded hole. With the cooperation of the threaded groove, the round rod moves from the inside of the threaded hole to the outside. The movement of the round rod drives the rotating plate to move, and then the spring is compressed to move the second heat insulation cover to one side, thereby separating the first heat insulation cover from the second heat insulation cover, and facilitating the rapid installation and disassembly of the first heat insulation cover and the second heat insulation cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached picture:

[0013] Figure 1 This is a front view of a heat shield for a catalytic converter of an automobile according to the utility model;

[0014] Figure 2 It is a structural schematic diagram of the installation assembly of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of opening the heat dissipation holes of the utility model.

[0016] In the figure: 1. Catalyst body; 2. First heat shield; 3. Second heat shield; 4. Mounting assembly; 41. Fixing seat; 42. Slot; 43. Threaded hole; 44. Support plate; 45. Round rod; 46. Pull ring; 47. Threaded groove; 48. Rotating plate; 49. Block; 410. Spring; 5. Rock wool sleeve; 6. Ceramic plate; 7. Heat dissipation hole; 8. Slide groove; 9. Slider. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 This application is described in further detail.

[0018] The present application embodiment discloses a heat shield for a catalyst in an automobile. Figure 1-2 , comprising a catalyst body 1, both sides of the catalyst body 1 are sleeved with a first heat shield 2 and a second heat shield 3, the first heat shield 2 and the second heat shield 3 are clamped with each other, both sides of the first heat shield 2 are connected with mounting components 4, the mounting components 4 include fixing seats 41 installed on both sides of the first heat shield 2, both sides of the fixing seat 41 are provided with a card slot 42, the lower end of the fixing seat 41 is provided with a threaded hole 43, both sides of the second heat shield 3 are connected with a support plate 44, the support plate 44 supports a round rod 45, the round rod 45 is rotatably connected to the support plate 44, and the upper end of the support plate 44 penetrates A round rod 45 is connected, and a pull ring 46 is connected to the lower end of the round rod 45. The pull ring 46 facilitates pulling the round rod 45 downward. A threaded groove 47 is provided on one side of the outside of the round rod 45. A rotating plate 48 is sleeved on the outside of the round rod 45. Blocks 49 are connected to both sides of the outside of the rotating plate 48. The block 49 is located inside the slot 42. A spring 410 is sleeved on the outside of the round rod 45. One end of the spring 410 is connected to one side of the rotating plate 48. Because one end of the spring 410 is rotatably connected to the support plate 44, when the round rod 45 rotates, the spring 410 is driven to rotate, and the other end of the spring 410 is rotatably connected to one side of the support plate 44.

[0019] Reference Figure 3 The first heat insulation cover 2 and the second heat insulation cover 3 are both connected to the inner side with a rock wool sleeve 5. The rock wool sleeve 5 has good thermal insulation performance. On the basis of heat insulation, it can also reduce the propagation of noise. One end of the rock wool sleeve 5 is connected to a ceramic plate 6. The ceramic plate 6 prevents the heat transfer on the side, thereby playing a better role in heat insulation. One side of the ceramic plate 6 is in contact with the outside of the catalyst body 1. Heat dissipation holes 7 are opened through one end of the first heat insulation cover 2 and the second heat insulation cover 3. The heat dissipation holes 7 accelerate the air flow and reduce the heat inside the first heat insulation cover 2 and the second heat insulation cover 3. A slide groove 8 is assumed to be provided at one end of the first heat insulation cover 2. The slider 9 slides into the inside of the slide groove 8 to facilitate the connection between the first heat insulation cover 2 and the second heat insulation cover 3. The slide groove 8 is connected to the inside of the slider 9, and one end of the slider 9 is connected to one side of the second heat insulation cover 3.

[0020] The implementation principle of the automotive catalytic converter heat shield of the embodiment of the present application is as follows: when in use, in the initial state, the clamping block 49 is located inside the clamping slot 42, one end of the round rod 45 is located inside the threaded hole 43, the first heat shield 2 and the second heat shield 3 are fixedly clamped, the rotating plate 48 is rotated to one side, the rotating plate 48 drives the clamping block 49 to move, so that the clamping block 49 is no longer fixedly connected to the clamping slot 42, the round rod 45 is rotated, the round rod 45 rotates inside the threaded hole 43, and with the cooperation of the threaded groove 47, the round rod 45 moves from the inside of the threaded hole 43 to the outside, the movement of the round rod 45 drives the rotating plate 48 to move, and then the spring 410 is compressed and the second heat shield 3 is moved to one side, thereby separating the first heat shield 2 and the second heat shield 3, which is convenient for quick installation and disassembly of the first heat shield 2 and the second heat shield 3.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat shield for a catalyst for an automobile, comprising a catalyst body (1), characterized in that: The first heat shield (2) and the second heat shield (3) are sleeved on both sides of the exterior of the catalyst body (1); the first heat shield (2) and the second heat shield (3) are mutually clamped; both sides of the exterior of the first heat shield (2) are connected with mounting components (4); the mounting components (4) include fixing seats (41) mounted on both sides of the first heat shield (2); both sides of the exterior of the fixing seat (41) are provided with clamping grooves (42); and the lower end of the fixing seat (41) is provided with a threaded hole (43).

2. The automotive catalyst heat shield according to claim 1, characterized in that: Support plates (44) are connected to both sides of the outside of the second heat insulation cover (3); a round rod (45) is connected through the upper end of the support plate (44); a pull ring (46) is connected to the lower end of the round rod (45); a threaded groove (47) is provided on one side of the outside of the round rod (45); and a rotating plate (48) is sleeved on the outside of the round rod (45).

3. The automotive catalyst heat shield according to claim 2, characterized in that: Blocks (49) are connected to both sides of the rotating plate (48), and the block (49) is located inside the slot (42). A spring (410) is sleeved on the outside of the round rod (45), and one end of the spring (410) is connected to one side of the rotating plate (48), and the other end of the spring (410) is rotatably connected to one side of the support plate (44).

4. The automotive catalyst heat shield according to claim 1, characterized in that: The first heat shield (2) and the second heat shield (3) are both connected to a rock wool sleeve (5) on their inner sides, one end of the rock wool sleeve (5) is connected to a ceramic plate (6), one side of the ceramic plate (6) is in contact with the outside of the catalyst body (1), and one end of the first heat shield (2) and the second heat shield (3) are both penetrated by a heat dissipation hole (7).

5. The automotive catalyst heat shield according to claim 4, characterized in that: One end of the first heat insulation cover (2) is assumed to have a slide groove (8), the interior of the slide groove (8) is connected to a slider (9), and one end of the slider (9) is connected to one side of the second heat insulation cover (3).

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