Automobile exhaust catalyst shell convenient to disassemble and assemble

Abstract

The utility model relates to the related technical field of catalytic converters, in particular to an automobile exhaust catalytic converter shell convenient to disassemble and assemble, which comprises a first shell and a second shell, the first shell corresponds to the second shell in position, an annular block is fixedly connected to the outer side wall of the first shell, and a rotating assembly is arranged on the annular block. A plurality of plane grooves are formed in the outer side wall of the end, close to the second shell, of the annular block, hollow shafts are rotationally connected to the plane grooves, and gears are fixedly connected to one ends of the hollow shafts. The gear is rotated through the rotating assembly, then the clamping block and the fixing groove are fixedly clamped through the lifting threaded pin structure, then the rotating assembly is fixed through the second threaded rod, the first shell and the second shell are fixed in an attached mode, and when the first shell and the second shell are detached, the first shell and the second shell can be detached conveniently. When the first shell and the second shell are connected, only the rotating assembly needs to be rotated in the opposite direction, and in the process, the connection mode between the first shell and the second shell is more stable through the connection mode of the clamping blocks and the fixing grooves.

Description

Technical Field

[0001] The utility model relates to a catalyst shell, in particular to an automobile exhaust catalyst shell which is convenient to disassemble and assemble, and belongs to the technical field related to catalysts. Background Art

[0002] The exhaust catalyst is an important device for controlling automobile exhaust emissions, usually located in the exhaust system of the car. Its main function is to convert harmful substances in the exhaust gas into harmless substances, thereby reducing pollution to the environment. The catalyst contains precious metals such as platinum and palladium. When the exhaust gas passes through the catalyst, the precious metals will cause the harmful substances such as CO, HC and NOx in the exhaust gas to undergo chemical reactions and convert them into harmless substances such as water vapor and nitrogen.

[0003] According to a Chinese patent document with announcement number CN220203997U, a three-way catalytic converter that is easy to disassemble and assemble is disclosed, which includes a shell one, a three-way catalytic converter carrier, a mounting cylinder, a filter screen, a shell two, a limiter and a connecting piece. The limiter consists of a clamping block, a pressing plate and a spring two. The connecting piece consists of a connecting plate, a limiter plate, a clamping plate and a spring one. An array of grooves is provided on the outer side of the connecting cylinder, and the limiter plate is slidably connected in the groove.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that when the above equipment is used, the connection and fixation of shell one and shell two are achieved through the coordinated use of a connecting piece, a fixing tube and a connecting tube, and the limit plate in the connecting piece compresses spring one, thereby driving the card plate to engage or disengage with the card slot on the fixing tube. However, shell one and shell two are mainly connected by a card plate, and the card plate is connected to spring one. When shell one and shell two are squeezed and collided by external force, the connection relationship between shell one and shell two becomes unstable, which is not conducive to the overall use of the device. There are multiple card plates, and it is cumbersome to push the card plates one by one, which is inconvenient for disassembly and assembly of shell one and shell two.

[0005] Therefore, there is an urgent need to improve the automobile exhaust catalytic converter housing that is easy to disassemble and assemble to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide an automobile exhaust catalytic converter housing which is convenient for disassembly and assembly. The gear is rotated by a rotating assembly, and then a lifting threaded pin structure is used to fix and clamp a clamping block with a fixing groove, and then a threaded rod two is used to fix the rotating assembly, so that the housing one and the housing two are fitted and fixed. When the housing one and the housing two are disassembled, it is only necessary to rotate the rotating assembly in the opposite direction. In this process, the connection between the housing one and the housing two is more stable through the connection between the clamping block and the fixing groove, and when the housing one and the housing two are disassembled and assembled, the operation steps are fewer and more convenient and quick.

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model includes: comprising a shell body 1 and a shell body 2, the shell body 1 corresponds to the position of the shell body 2, an annular block is fixedly connected to the outer wall of the shell body 1, a rotating assembly is provided on the annular block, a plurality of plane grooves are opened on the outer wall of one end of the annular block close to the shell body 2, a hollow shaft is rotatably connected to the plane groove, a gear is fixedly connected to one end of the hollow shaft, the rotating assembly is used to rotate the gear, a lifting thread pin structure is provided on the gear, and the gear is coupled to the lifting thread pin structure;

[0008] A fixed ring block is fixedly connected to the outer side wall of the second shell, and a plurality of clamping blocks are fixedly connected to the side wall of one side of the fixed ring block. A fixing hole is provided on the clamping block, and a plurality of fixing grooves are provided on an end surface of the annular block close to the second shell. The clamping block is movably clamped with the fixing groove, and the lifting threaded pin structure fixes the clamping block in the fixing groove through the fixing hole, thereby clamping the first shell and the second shell.

[0009] Preferably, the rotating assembly includes a rotating ring and a gear ring, the rotating ring and the gear ring are both rotatably connected to the annular block, the gear ring is fixedly connected to a side wall of one side of the rotating ring, and a plurality of auxiliary holes are opened on the outer side wall of the rotating ring.

[0010] Preferably, a vertical ring plate is fixedly connected to the inner wall of the rotating circle, the vertical ring plate is rotatably connected to the annular block, a plurality of positioning holes are opened on the vertical ring plate, and the plurality of positioning holes are equidistantly arranged around the central axis of the vertical ring plate.

[0011] Preferably, a cylindrical protrusion is fixedly connected to the side wall of the annular block away from the lifting threaded pin structure, and a threaded rod 2 is threadedly connected to the cylindrical protrusion, one end of the threaded rod 2 passes through one of the positioning holes, and the threaded rod 2 is movably contacted with the positioning hole, and the other end of the threaded rod 2 is fixedly connected to a rotating wheel, and a hexagonal slot hole is opened on the side surface of one side of the rotating wheel.

[0012] Preferably, the lifting threaded pin structure includes a threaded rod 1 and two L-shaped limit rods, the threaded rod 1 is threadedly connected to the gear, one end of the threaded rod 1 passes through the side wall of the fixing groove and extends to the inside, the threaded rod 1 is movably connected to the fixing hole, one end of the two L-shaped limit rods are respectively fixedly connected to the positions on both sides of the other end of the threaded rod 1, and the other ends of the two L-shaped limit rods are slidably connected to the annular block.

[0013] Preferably, an annular sealing ring is fixedly connected to a side wall of the annular block close to the fixing groove, and an inner side wall of the annular sealing ring is movably fitted with two outer side walls of the shell.

[0014] Preferably, a catalyst body is provided inside the shell one and the shell two.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. The gear is rotated by the rotating assembly, and then the lifting threaded pin structure is used to fix the clamping block and the fixing groove, and then the rotating assembly is fixed by the threaded rod 2, so that the shell 1 and the shell 2 are fitted and fixed. When the shell 1 and the shell 2 are disassembled, it is only necessary to rotate the rotating assembly in the opposite direction. In this process, the connection between the clamping block and the fixing groove makes the connection between the shell 1 and the shell 2 more stable, and when the shell 1 and the shell 2 are disassembled, the operation steps are fewer and more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 An isometric structural schematic diagram provided for the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the isometric structure provided by the utility model;

[0020] Figure 3 The utility model provides Figure 2 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 Schematic diagram of partial structure explosion provided by the utility model Figure 1 ;

[0022] Figure 5 Schematic diagram of partial structure explosion provided by the utility model Figure 2 .

[0023] In the figure, 1, shell one; 2, shell two; 3, annular block; 4, rotating assembly; 401, rotating circle; 402, gear ring; 5, flat groove; 6, hollow shaft; 7, gear; 8, lifting threaded pin structure; 801, threaded rod one; 802, L-shaped limit rod; 9, fixed ring block; 10, clamping block; 11, fixed groove; 12, auxiliary hole; 13, vertical ring plate; 14, positioning hole; 15, cylindrical protrusion; 16, threaded rod two; 17, rotating wheel; 18, hexagonal slot hole; 19, annular sealing ring; 20, catalyst body; 21, fixing hole. DETAILED DESCRIPTION

[0024] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] like Figure 1-Figure 5 As shown, the automobile exhaust catalyst housing that is easy to disassemble and assemble provided by the present embodiment includes a housing 1 and a housing 2, wherein a catalyst body 20 is arranged inside the housing 1 and the housing 2, and the housing 1 and the housing 2 correspond in position to each other. An annular block 3 is fixedly connected to the outer wall of the housing 1, and an annular sealing ring 19 is fixedly connected to the side wall of the annular block 3 close to the fixing groove 11, and the inner wall of the annular sealing ring 19 is movably fitted with the outer wall of the housing 2, and the annular sealing ring 19 strengthens the sealing performance when the housing 1 and the housing 2 are fitted together, and a rotating assembly 4 is arranged on the annular block 3, and a plurality of plane grooves 5 are opened on the outer wall of one end of the annular block 3 close to the housing 2, and a hollow shaft 6 is rotatably connected to the plane groove 5, and a gear 7 is fixedly connected to one end of the hollow shaft 6, and the rotating assembly 4 is used to rotate the gear 7, and a lifting threaded pin structure 8 is arranged on the gear 7, and the gear 7 is coupled to the lifting threaded pin structure 8;

[0026] A fixing ring block 9 is fixedly connected to the outer wall of the shell 2, and a plurality of clamping blocks 10 are fixedly connected to the side wall of one side of the fixing ring block 9. The clamping block 10 is provided with a fixing hole 21. A plurality of fixing grooves 11 are provided on the end surface of the annular block 3 close to the shell 2. The clamping block 10 is movably clamped with the fixing groove 11. The lifting threaded pin structure 8 fixes the clamping block 10 in the fixing groove 11 through the fixing hole 21, thereby clamping the shell 1 and the shell 2. When protecting the catalyst body 20, the shell 1 is placed in a corresponding position to the shell 2, and then a plurality of clamping blocks 10 are inserted into a plurality of fixing grooves 1 corresponding to the positions thereof. 1, and then rotate the rotating component 4 in a clockwise direction, thereby driving a plurality of gears 7 to rotate, the gears 7 drive the lifting threaded pin structure 8 to move, and then fix the clamping block 10 in the fixing groove 11 through the fixing hole 21. At this time, the shell 1 and the shell 2 2 are in close contact and are in a fixed state. When the shell 1 and the shell 2 need to be separated, it is only necessary to rotate the rotating component 4 in the opposite direction, thereby driving the gears 7 to rotate, and then driving the lifting threaded pin structure 8 to no longer fix the clamping block 10 in the fixing groove 11. At this time, the shell 1 and the shell 2 2 are no longer in close contact and fixed, and the operation is convenient and simple, and the firmness is good.

[0027] Among them, Figure 4 as well as Figure 5 As shown, the rotating assembly 4 includes a rotating circle 401 and a gear ring 402, and the rotating circle 401 and the gear ring 402 are both rotatably connected to the annular block 3, the gear ring 402 is fixedly connected to a side wall of the rotating circle 401, and a plurality of auxiliary holes 12 are provided on the outer wall of the rotating circle 401. The auxiliary holes 12 are provided to facilitate the use of tools to input power to the rotating circle 401. A vertical ring plate 13 is fixedly connected to the inner wall of the rotating circle 401, and the vertical ring plate 13 is rotatably connected to the annular block 3. A plurality of positioning holes 14 are provided on the vertical ring plate 13, and the plurality of positioning holes 14 are equidistantly arranged around the central axis of the vertical ring plate 13. Rotating the rotating circle 401 drives the gear ring 402 to rotate, and the plurality of gears 7 are driven to rotate through the gear ring 402.

[0028] Further, such as Figure 4 as well as Figure 5As shown, a cylindrical protrusion 15 is fixedly connected to the side wall of the annular block 3 away from the lifting threaded pin structure 8, and a threaded rod 2 16 is threadedly connected to the cylindrical protrusion 15. One end of the threaded rod 2 16 passes through one of the positioning holes 14, and the threaded rod 2 16 is movably contacted with the positioning hole 14, and the other end of the threaded rod 2 16 is fixedly connected to a rotating wheel 17. A hexagonal slot 18 is provided on the side surface of one side of the rotating wheel 17. The hexagonal slot 18 is convenient for using a tool to input power to the rotating wheel 17. When the rotating circle 401 is rotated, several positioning holes 14 rotate therewith. When the rotating circle 401 needs to be fixed and no longer rotated, it is only necessary to rotate the threaded rod 2 16 on the cylindrical protrusion 15, so that one end of the threaded rod 2 16 extends toward the inside of the annular block 3, and stop rotating the rotating wheel 17 after passing through one of the positioning holes 14. At this time, the positioning hole 14 is fixed, and then the rotating circle 401 is fixed.

[0029] Furthermore, Figure 4 as well as Figure 5 As shown, the lifting threaded pin structure 8 includes a threaded rod 801 and two L-shaped limit rods 802. The threaded rod 801 is threadedly connected to the gear 7. One end of the threaded rod 801 passes through the side wall of the fixing groove 11 and extends to the inside. When one end of the threaded rod 801 moves, it passes through the inside of the hollow shaft 6. The threaded rod 801 is movably connected to the fixing hole 21. One ends of the two L-shaped limit rods 802 are respectively fixedly connected to the positions on both sides of the other end of the threaded rod 801. The other ends of the two L-shaped limit rods 802 are slidably connected to the annular block 3. Under the action of the two L-shaped limit rods 802, the threaded rod 801 no longer rotates. When the gear 7 rotates, it can only drive the threaded rod 801 to move linearly in the vertical direction of the plane groove 5. When the clamping block 10 is clamped in the fixing groove 11, the rotating gear 7 can drive one end of the threaded rod 801 to extend into the fixing hole 21, thereby fixing the clamping block 10 in the fixing groove 11.

[0030] like Figure 1-Figure 5As shown, the principle of the automobile exhaust catalyst housing that is easy to disassemble and assemble provided by this embodiment is as follows: when in use, the housing 1 and the housing 2 are placed in corresponding positions, and then a plurality of clamping blocks 10 are inserted into a plurality of fixing grooves 11 corresponding to the positions thereof, and then the rotating ring 401 is rotated to drive the gear ring 402 to rotate, and the gear ring 402 further drives a plurality of gears 7 to rotate, and the gear 7 can drive one end of the threaded rod 1 801 to extend into the fixing hole 21, and then the clamping block 10 is fixed in the fixing groove 11, at this time, the housing 1 and the housing 2 are fitted and fixed, and the catalyst body 20 is protected therein, and then the cylindrical protrusion 15 is rotated. The threaded rod 16 on the housing 1 is moved, so that one end of the threaded rod 16 extends toward the inside of the annular block 3. After passing through one of the positioning holes 14, the rotating wheel 17 stops rotating, and the positioning hole 14 is fixed at this time, and the rotating circle 401 is fixed. When the housing 1 and the housing 2 need to be separated, it is only necessary to first move one end of the threaded rod 16 away from the positioning hole 14, and no longer fix the positioning hole 14, and then rotate the rotating circle 401 in the opposite direction, thereby driving the gear 7 to rotate, and then driving the lifting threaded pin structure 8 to no longer fix the clamping block 10 in the fixing groove 11. At this time, the housing 1 and the housing 2 are no longer fitted and fixed, and the catalyst body 20 can be removed.

[0031] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0032] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0033] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An automobile exhaust catalytic converter housing that is easy to disassemble and assemble, comprising a housing 1 (1) and a housing 2 (2), characterized in that: The shell one (1) corresponds to the shell two (2). An annular block (3) is fixedly connected to the outer wall of the shell one (1). A rotating assembly (4) is provided on the annular block (3). A plurality of plane grooves (5) are provided on the outer wall of one end of the annular block (3) close to the shell two (2). A hollow shaft (6) is rotatably connected to the plane groove (5). A gear (7) is fixedly connected to one end of the hollow shaft (6). The rotating assembly (4) is used to rotate the gear (7). A lifting thread pin structure (8) is provided on the gear (7), and the gear (7) is coupled to the lifting thread pin structure (8). A fixing ring block (9) is fixedly connected to the outer wall of the second shell (2), and a plurality of clamping blocks (10) are fixedly connected to the side wall of one side of the fixing ring block (9), and a fixing hole (21) is provided on the clamping block (10). A plurality of fixing grooves (11) are provided on an end surface of the annular block (3) close to the second shell (2), and the clamping block (10) is movably clamped with the fixing groove (11). The lifting thread pin structure (8) fixes the clamping block (10) in the fixing groove (11) through the fixing hole (21), thereby clamping the first shell (1) and the second shell (2).

2. The easily disassembled automobile exhaust catalytic converter housing according to claim 1 is characterized in that: The rotating assembly (4) comprises a rotating ring (401) and a gear ring (402), wherein the rotating ring (401) and the gear ring (402) are both rotatably connected to the annular block (3), the gear ring (402) is fixedly connected to a side wall of the rotating ring (401), and a plurality of auxiliary holes (12) are provided on the outer side wall of the rotating ring (401).

3. The easily disassembled automobile exhaust catalytic converter housing according to claim 2 is characterized in that: A vertical ring plate (13) is fixedly connected to the inner wall of the rotating circle (401), and the vertical ring plate (13) is rotatably connected to the annular block (3). A plurality of positioning holes (14) are provided on the vertical ring plate (13), and the plurality of positioning holes (14) are equidistantly arranged around the central axis of the vertical ring plate (13).

4. The easily disassembled automobile exhaust catalytic converter housing according to claim 3 is characterized in that: A cylindrical protrusion (15) is fixedly connected to the side wall of the annular block (3) away from the lifting threaded pin structure (8), and a second threaded rod (16) is threadedly connected to the cylindrical protrusion (15). One end of the second threaded rod (16) passes through one of the positioning holes (14), and the second threaded rod (16) is in movable contact with the positioning hole (14). The other end of the second threaded rod (16) is fixedly connected to a rotating wheel (17), and a hexagonal slot hole (18) is provided on one side of the rotating wheel (17).

5. The easily disassembled automobile exhaust catalytic converter housing according to claim 1 is characterized in that: The lifting threaded pin structure (8) comprises a threaded rod (801) and two L-shaped limit rods (802); the threaded rod (801) is threadedly connected to the gear (7); one end of the threaded rod (801) passes through the side wall of the fixing groove (11) and extends to the inside; the threaded rod (801) is movably connected to the fixing hole (21); one end of the two L-shaped limit rods (802) are respectively fixedly connected to the positions on both sides of the other end of the threaded rod (801); and the other ends of the two L-shaped limit rods (802) are slidably connected to the annular block (3).

6. The easily disassembled automobile exhaust catalytic converter housing according to claim 1, characterized in that: An annular sealing ring (19) is fixedly connected to a side wall of the annular block (3) close to the fixing groove (11), and the inner side wall of the annular sealing ring (19) is movably fitted with the outer side wall of the second shell (2).

7. The easily disassembled automobile exhaust catalytic converter housing according to claim 1, characterized in that: A catalyst body (20) is provided inside the shell one (1) and the shell two (2).

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