Lightweight catalyst

Abstract

The utility model relates to the technical field of catalytic converters, and discloses a lightweight catalytic converter which comprises a first cylinder body, the upper surface of the first cylinder body is fixedly connected with a second cylinder body, a piston block is arranged on the inner wall of the second cylinder body in an attached mode, and the upper surface of the piston block and the front side and the rear side of the inner wall of the second cylinder body are fixedly connected with adjusting supports. And air holes are formed in the upper surface of the first cylinder body. Through the cooperation of the second cylinder body, the piston block, the adjusting support, the air hole, the circular ring and the elastic rubber sleeve, a user can enable the elastic rubber sleeve to deform under the action of air pressure by rotating the rotating block on the adjusting support, the elastic rubber sleeve is in close contact with or separated from the ceramic sealing gasket, and meanwhile, the elastic rubber sleeve is prevented from falling off. And after the ceramic sealing gasket is separated from the elastic rubber sleeve, the catalyst bag can be smoothly taken out from the first cylinder body, so that a user can more conveniently disassemble the catalyst bag in the light-weight catalyst converter.

Description

Technical Field

[0001] The utility model relates to the technical field of catalysts, in particular to a lightweight catalyst. Background Art

[0002] The catalyst 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.

[0003] At present, lightweight catalysts are mainly composed of a cylinder, a ceramic gasket, a catalyst package, an air pipe assembly and an outlet end cover assembly. For example, Chinese Patent Publication No. CN209179854U discloses a lightweight manifold catalyst for a hybrid vehicle. However, since the ceramic gasket and the catalyst package are fixed in the cylinder by press-fitting, maintenance personnel often find it difficult to remove the catalyst package because the catalyst package is stuck in the cylinder, which makes it difficult for maintenance personnel to replace the catalyst package in the lightweight catalyst. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, the lightweight catalyst is mainly composed of a cylinder, a ceramic sealing gasket, a catalyst package, an air pipe assembly and an outlet end cover assembly, but because the ceramic sealing gasket and the catalyst package are fixed in the cylinder by press-fitting, it is often difficult for maintenance personnel to remove the catalyst package because the catalyst package is stuck in the cylinder, which makes it difficult for maintenance personnel to replace the catalyst package in the lightweight catalyst, and a lightweight catalyst is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lightweight catalyst comprises a first cylinder, wherein the upper surface of the first cylinder is fixedly connected to the second cylinder, the inner wall of the second cylinder is fitted with a piston block, the upper surface of the piston block and the front and rear sides of the inner wall of the second cylinder are fixedly connected with an adjustment bracket, the upper surface of the first cylinder is provided with an air hole, the inner wall of the first cylinder is fixedly connected to a circular ring, the inner wall of the circular ring is bonded with an elastic rubber sleeve, the inner wall of the first cylinder is fixedly connected to a separator ring, the left and right sides of the separator ring are fitted with a catalyst package, the surface of the catalyst package is bonded with a ceramic sealing gasket, the surface of the ceramic sealing gasket is in contact with the inner wall of the elastic rubber sleeve, the left end of the first cylinder is fixedly connected to an air pipe assembly, and the right end of the first cylinder is fixedly connected to an outlet end cover assembly.

[0007] Preferably, the adjusting bracket includes a threaded column, a threaded barrel is threadedly connected to the surface of the threaded column, a bearing is fixedly connected to the surface of the threaded barrel, a connecting block is fixedly connected to the surface of the bearing and the front and rear sides of the inner wall of the second barrel, a rotating block is fixedly connected to the surface of the threaded barrel, and a connecting frame is fixedly connected to the surface of the threaded column and the upper surface of the piston block.

[0008] Preferably, the gap between the inner wall of the ring and the ceramic sealing gasket is greater than the thickness of the elastic rubber sleeve.

[0009] Preferably, vertical plates are fixedly connected on the left and right sides of the second cylinder, a horizontal plate is fixedly connected on the upper surface of the vertical plate, a circular hole is opened inside the horizontal plate, a sliding sleeve is fitted on the surface of the horizontal plate and the upper surface of the threaded column, a strip hole is opened inside the horizontal plate, a slider is fixedly connected on the right side of the sliding sleeve, the surface of the slider is in contact with the inner wall of the strip hole, and a spring is fixedly connected on the right side of the slider and the inner wall of the strip hole.

[0010] Preferably, the center of the circular hole and the center of the threaded column are on the same vertical line, and the diameter of the circular hole is larger than the diameter of the threaded column.

[0011] Preferably, an observation hole is provided at the bottom of the first cylinder, and a transparent plate is fixedly connected to the inner wall of the observation hole and the bottom of the ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model cooperates with the second cylinder, the piston block, the adjustment bracket, the air hole, the ring and the elastic rubber sleeve, so that the user can deform the elastic rubber sleeve under the action of air pressure by rotating the rotating block on the adjustment bracket, and make the elastic rubber sleeve closely contact or separate from the ceramic sealing gasket. At the same time, when the ceramic sealing gasket is separated from the elastic rubber sleeve, the catalyst package can be smoothly taken out from the first cylinder, thereby making it more convenient for the user to disassemble the catalyst package in the lightweight catalyst.

[0014] (2) The utility model uses the spring to push the slider so that the bottom of the sliding sleeve cannot be automatically separated after contacting the threaded column. At the same time, when the bottom of the sliding sleeve contacts the threaded column, the distance between the piston block and the first cylinder cannot be changed through the sliding cylinder. When the sliding sleeve and the threaded column are offset, the threaded column can move up and down freely. After the user adjusts the distance between the piston block and the first cylinder to the minimum value, the distance between the piston block and the first cylinder cannot be increased through the coordination of the vertical plate, the horizontal plate, the round hole, the sliding sleeve, the strip hole, the sliding sleeve and the spring, thereby preventing the elastic rubber sleeve and the ceramic sealing gasket from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0018] Figure 4 It is a front view of the structure of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0020] Figure 6 It is a top view of the first cylinder in the utility model;

[0021] Figure 7 It is a bottom view of the first cylinder in the utility model;

[0022] Figure 8 It is a side view of the adjustment bracket in the utility model;

[0023] Fig. 9 for Figure 8 Sectional view at DD in the middle;

[0024] Fig.10 It is a top view of the transfer block of the utility model;

[0025] Fig.11 It is a side view of the circular ring in the utility model;

[0026] Fig.12 It is a top view of the horizontal plate in the utility model.

[0027] In the figure: 1. first cylinder; 2. second cylinder; 3. piston block; 4. adjusting bracket; 41. threaded column; 42. threaded cylinder; 43. bearing; 44. connecting block; 45. rotating block; 46. connecting frame; 5. air hole; 6. circular ring; 7. elastic rubber sleeve; 8. separating ring; 9. catalyst package; 10. ceramic sealing gasket; 11. vertical plate; 12. horizontal plate; 13. circular hole; 14. sliding sleeve; 15. strip hole; 16. sliding block; 17. spring; 18. observation hole; 19. transparent plate; 20. air pipe assembly; 21. outlet cover assembly. DETAILED DESCRIPTION

[0028] 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.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Embodiment 1:

[0031] Reference Figure 1-11 A lightweight catalyst comprises a first cylinder 1, a second cylinder 2 is fixedly connected to the upper surface of the first cylinder 1, a piston block 3 is fitted on the inner wall of the second cylinder 2, an adjustment bracket 4 is fixedly connected to the upper surface of the piston block 3 and the front and rear sides of the inner wall of the second cylinder 2, an air hole 5 is opened on the upper surface of the first cylinder 1, a circular ring 6 is fixedly connected to the inner wall of the first cylinder 1, an elastic rubber sleeve 7 is bonded to the inner wall of the circular ring 6, and there are two circular rings 6 on the elastic rubber sleeve 7, the air hole 5 is located in the second cylinder 2, and the air hole 5 is located between the left and right circular rings 6, the first cylinder 1 and the second cylinder 2 are connected to each other through the air hole 5, a separator ring 8 is fixedly connected to the inner wall of the first cylinder 1, a catalyst bag 9 is fitted on the left and right sides of the separator ring 8, the two catalyst bags 9 are separated by the separator ring 8, a ceramic sealing pad 10 is bonded to the surface of the catalyst bag 9, and the surface of the ceramic sealing pad 10 contacts the inner wall of the elastic rubber sleeve 7, The gap between the inner wall of the ring 6 and the ceramic sealing gasket 10 is greater than the thickness of the elastic rubber sleeve 7. When the distance between the piston block 3 and the first cylinder 1 is reduced, the air in the second cylinder 2 is pushed into the first cylinder 1 through the piston block 3, and the elastic rubber sleeve 7 is deformed by air pressure. At this time, the deformed elastic rubber sleeve 7 can be in close contact with the ceramic sealing gasket 10, and the catalyst package 9 is fixed in the first cylinder 1 through the friction between the elastic rubber sleeve 7 and the ceramic sealing gasket 10. When the distance between the piston block 3 and the first cylinder 1 increases, the air in the first cylinder 1 is drawn into the second cylinder 2 through the piston block 3, and then, the elastic rubber sleeve 7 is separated from the ceramic sealing gasket 10 by the restoring force of the elastic rubber sleeve 7, and the catalyst package 9 can be smoothly taken out of the first cylinder 1. The left end of the first cylinder 1 is fixedly connected to the air pipe assembly 20, and the right end of the first cylinder 1 is fixedly connected to the outlet end cover assembly 21.

[0032] The adjusting bracket 4 includes a threaded column 41, a threaded barrel 42 is threadedly connected to the surface of the threaded column 41, a bearing 43 is fixedly connected to the surface of the threaded barrel 42, a connecting block 44 is fixedly connected to the surface of the bearing 43 and the front and rear sides of the inner wall of the second cylinder 2, a rotating block 45 is fixedly connected to the surface of the threaded barrel 42, and a connecting frame 46 is fixedly connected to the surface of the threaded column 41 and the upper surface of the piston block 3. When the rotating block 45 rotates, the piston block 3 moves upward or downward through the cooperation of the threaded column 41 and the threaded barrel 42.

[0033] Embodiment 2:

[0034] Reference Figure 1-12 The left and right sides of the second cylinder 2 are fixedly connected with vertical plates 11, and the upper surface of the vertical plates 11 is fixedly connected with a horizontal plate 12. A circular hole 13 is opened inside the horizontal plate 12. The center of the circular hole 13 is on the same vertical line as the center of the threaded column 41. The diameter of the circular hole 13 is larger than the diameter of the threaded column 41. The surface of the horizontal plate 12 and the upper surface of the threaded column 41 are both fitted with a sliding sleeve 14. The sliding sleeve 14 can move left and right on the horizontal plate 12. When the bottom of the sliding sleeve 14 contacts the threaded column 41, the piston is moved by the sliding cylinder. The distance between the block 3 and the first cylinder 1 cannot be changed. When the sliding sleeve 14 is staggered with the threaded column 41, the threaded column 41 can move up and down freely. A strip hole 15 is opened inside the cross plate 12. A slider 16 is fixedly connected to the right side of the sliding sleeve 14. The surface of the slider 16 contacts the inner wall of the strip hole 15. The right side of the slider 16 and the inner wall of the strip hole 15 are fixedly connected with a spring 17. The spring 17 pushes the slider 16 so that the bottom of the sliding sleeve 14 cannot be automatically separated after contacting the threaded column 41.

[0035] An observation hole 18 is provided at the bottom of the first cylinder 1 , and a transparent plate 19 is fixedly connected to the inner wall of the observation hole 18 and the bottom of the ring 6 . The cooperation between the observation hole 18 and the transparent plate 19 facilitates the user to observe whether there is a catalyst package 9 in the first cylinder 1 .

[0036] In the utility model, when assembling the lightweight catalyst, the user first rotates the rotating block 45 to make the piston block 3 move upward under the cooperation of the threaded cylinder 42 and the threaded column 41. When the distance between the piston block 3 and the first cylinder 1 reaches the maximum value, the rotating block 45 is stopped, and then the catalyst package 9 is inserted into the first cylinder 1, and the catalyst package 9 is located in the elastic rubber sleeve. Then, by rotating the rotating block 45, the piston block 3 moves downward under the cooperation of the threaded cylinder 42 and the threaded column 41, and the air in the second cylinder 2 is pushed into the first cylinder 1 through the piston block 3. At this time, the elastic rubber sleeve 7 is expanded by air pressure. When the distance between the piston block 3 and the first cylinder 1 reaches the minimum value, the rotating block 45 is stopped, and the elastic rubber sleeve is pushed into the first cylinder 1 through the piston block 3. 7 is in close contact with the ceramic sealing gasket 10. At this time, the catalyst package 9 can be fixed in the first cylinder 1 by the friction force between the elastic rubber sleeve 7 and the ceramic sealing gasket 10, and then, the air pipe assembly 20 and the air outlet end cover assembly 21 are respectively fixed to the first cylinder 1. When the catalyst package 9 needs to be removed, the air pipe assembly 20 and the air outlet end cover assembly 21 are first removed from the first cylinder 1, and then, by rotating the rotating block 45, the piston block 3 is moved upward with the cooperation of the threaded cylinder 42 and the threaded column 41, and the air in the first cylinder 1 is pumped into the second cylinder 2 through the piston block 3, and then, through the restoring force of the elastic rubber sleeve 7, the elastic rubber sleeve 7 is separated from the ceramic sealing gasket 10, and the catalyst package 9 can be smoothly taken out from the first cylinder 1.

[0037] 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.

[0038] 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.

Claims

1. A lightweight catalyst, comprising a first cylinder (1), characterized in that: The upper surface of the first cylinder (1) is fixedly connected to the second cylinder (2), the inner wall of the second cylinder (2) is fitted with a piston block (3), the upper surface of the piston block (3) and the front and rear sides of the inner wall of the second cylinder (2) are fixedly connected to an adjustment bracket (4), the upper surface of the first cylinder (1) is provided with an air hole (5), the inner wall of the first cylinder (1) is fixedly connected to a circular ring (6), the inner wall of the circular ring (6) is bonded with an elastic rubber sleeve (7), the inner wall of the first cylinder (1) is fixedly connected to a separation ring (8), the left and right sides of the separation ring (8) are fitted with a catalyst bag (9), the surface of the catalyst bag (9) is bonded with a ceramic sealing gasket (10), the surface of the ceramic sealing gasket (10) is in contact with the inner wall of the elastic rubber sleeve (7), the left end of the first cylinder (1) is fixedly connected to an air pipe assembly (20), and the right end of the first cylinder (1) is fixedly connected to an outlet end cover assembly (21).

2. A lightweight catalyst according to claim 1, characterized in that: The adjusting bracket (4) comprises a threaded column (41), the surface of the threaded column (41) is threadedly connected to a threaded barrel (42), the surface of the threaded barrel (42) is fixedly connected to a bearing (43), the surface of the bearing (43) and the front and rear sides of the inner wall of the second barrel (2) are fixedly connected to a connecting block (44), the surface of the threaded barrel (42) is fixedly connected to a rotating block (45), and the surface of the threaded column (41) and the upper surface of the piston block (3) are fixedly connected to a connecting frame (46).

3. A lightweight catalyst according to claim 1, characterized in that: The gap between the inner wall of the circular ring (6) and the ceramic sealing pad (10) is greater than the thickness of the elastic rubber sleeve (7).

4. A lightweight catalyst according to claim 2, characterized in that: The left and right sides of the second cylinder (2) are fixedly connected with vertical plates (11), the upper surface of the vertical plates (11) is fixedly connected with a horizontal plate (12), a circular hole (13) is provided inside the horizontal plate (12), the surface of the horizontal plate (12) and the upper surface of the threaded column (41) are both fitted with sliding sleeves (14), a strip hole (15) is provided inside the horizontal plate (12), a slider (16) is fixedly connected to the right side of the sliding sleeve (14), the surface of the slider (16) is in contact with the inner wall of the strip hole (15), and a spring (17) is fixedly connected to the right side of the slider (16) and the inner wall of the strip hole (15).

5. A lightweight catalyst according to claim 4, characterized in that: The center of the circular hole (13) and the center of the threaded column (41) are on the same vertical line, and the diameter of the circular hole (13) is greater than the diameter of the threaded column (41).

6. A lightweight catalyst according to claim 1, characterized in that: An observation hole (18) is provided at the bottom of the first cylinder (1), and a transparent plate (19) is fixedly connected to the inner wall of the observation hole (18) and the bottom of the circular ring (6).

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