Catalytic silencer for automobile

Abstract

The utility model relates to the technical field of automobile silencers, in particular to an automobile catalytic silencer which comprises a first shell and a second shell, clamping fastening structural parts are arranged on the outer walls of the two sides of the first shell respectively, and clamping structural parts are arranged on the outer walls of the two sides of the second shell respectively. The first shell and the second shell are movably connected in a clamped mode through the clamping fastening structural part and the clamping structural part. According to the utility model, the first moving assembly and the second moving assembly are simultaneously driven to move in opposite directions by using the driving assembly, and then the cylindrical piece is driven to be continuously extruded in the inclined groove, so that the tight fit state between the second shell and the first shell is gradually increased; the fastening state between the first shell and the second shell is ensured, the operation mode is good, only power input needs to be conducted on the driving assembly, the positioning assembly positions the moving state of the first moving assembly, and then the fastening state between the first shell and the second shell is continuously kept.

Description

Technical Field

[0001] The utility model relates to a muffler, in particular to a catalytic muffler for automobiles, belonging to the technical field of automobile mufflers. Background Art

[0002] The automobile catalytic muffler is a device used to reduce automobile exhaust emissions. It is usually installed in the exhaust pipe, and the harmful substances in the exhaust gas are converted into harmless substances through the action of the catalyst, while reducing noise. There is a catalyst bed inside the catalytic muffler. When the exhaust gas passes through the catalyst bed, the catalyst will promote the chemical reaction in the exhaust gas and convert some harmful substances into some harmless substances, which can greatly reduce the pollution of the exhaust gas to the environment. When disassembling and assembling the catalytic muffler shell, a shell that is easy to disassemble and assemble is more conducive to cleaning the catalytic muffler.

[0003] According to a Chinese patent document with the announcement number CN213116438U, a catalytic muffler for automobiles that is easy to clean includes a first shell and a second shell, the left side of the first shell is connected to an intake pipe, the right side of the top of the first shell is fixedly connected to a first connecting block, and the top of the first connecting block is fixedly connected to a second connecting block, the interior of the second connecting block is provided with a first connecting rod, and the surface of the first connecting rod is sleeved with a first spring. In the utility model, the effect of connecting the first shell and the second shell is achieved by using the first connecting block, the second connecting block, the first connecting rod, the first spring, the clamping block, the first connecting plate, the second spring, the second connection and the clamping 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, when it is necessary to disassemble the automobile muffler, the user manually removes the first bolt, and then manually pulls up the first connecting rod to move upward, driving the card block to be pulled out of the slot. At the same time, the card block is pulled out of the slot, the second connecting rod is reset due to the pulling force of the second spring, thereby separating the first shell from the second shell. The user manually removes the second bolt to separate the placement plate from the inner wall of the second shell. The user manually takes out the silencer plate and the filter screen, and can clean or replace them. Conversely, the silencer plate and the filter screen can be installed. In this process, multiple bolts are mainly used to jointly disassemble and install the first shell and the second shell, and multiple connection structures need to be operated. The bolt connection does not have a tightening function. When the connection between the first shell and the second shell is not tight, it cannot be effectively tightened and fitted. The operation is cumbersome, not fast enough, and the use efficiency is low.

[0005] Therefore, there is an urgent need to improve the catalytic muffler for automobiles to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a catalytic muffler for automobiles, which drives a No. 1 moving component and a No. 2 moving component to move in relative directions by using a driving component, thereby driving the columnar component to be continuously squeezed in the oblique groove, thereby gradually increasing the tight fit between the shell body 2 and the shell body 1, ensuring the fastening state between the shell body 1 and the shell body 2, and the operation mode is that only power input is required to the driving component, and the positioning component positions the moving state of the No. 1 moving component, thereby continuously maintaining the fastening state between the shell body 1 and the shell body 2, and when the shell body 1 and the shell body 2 are disassembled, only the pull ring needs to be pulled, and the operation is convenient, fast and simple, thereby improving the use efficiency.

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model includes: comprising a shell 1 and a shell 2, the outer walls of the shell 1 are respectively provided with a clamping fastening structure, the outer walls of the shell 2 are respectively provided with a clamping structure, the shell 1 and the shell 2 are movably clamped by the clamping fastening structure and the clamping structure;

[0008] The clamping fastening structure comprises two slot plates, a first moving assembly, a second moving assembly, a driving assembly and a positioning assembly, and the clamping structure comprises two support rods and two columnar members;

[0009] The outer walls on both sides of the housing are fixedly connected with slide rails, the two slot plates are slidably connected to the slide rails, and the two slot plates are symmetrical, and the slot plates are provided with oblique grooves, and the oblique grooves are movably connected to the columnar member;

[0010] The first moving component and the second moving component are respectively used to move the two slot plates, and the first moving component and the second moving component are connected to the driving component, and the driving component is used to simultaneously drive the first moving component and the second moving component to move in relative or opposite directions;

[0011] The first moving component is connected to the positioning component, and the positioning component positions the first moving component and then positions the driving component.

[0012] Preferably, an annular clamping groove is provided on an end surface of the shell one close to the shell two, an annular clamping plate is fixedly connected to an end surface of the shell two close to the shell one, and the annular clamping groove is movably clamped with the annular clamping plate.

[0013] Preferably, arc block 2 is fixedly connected to both sides of shell 2, arc block 1 is fixedly connected to both sides of shell 1, arc block 1 is provided with an arc-shaped snap-in groove, an arc-shaped snap-in block is fixedly connected to the side wall of one side of arc block 2, and the arc-shaped snap-in block is movably snap-into the arc-shaped snap-in groove.

[0014] Preferably, spring plates are fixedly connected to the side walls of one side of the two slot plates, a compression spring is fixedly connected between the two springs, and a sliding limit rod is slidably connected to the two spring plates.

[0015] Preferably, one end of the two support rods is fixedly connected to the outer wall of one side of the shell, and the other end of the support rod is fixedly connected to the columnar member.

[0016] Preferably, the movable component No. 1 includes a fixed column, a fixed long plate and a rack, the fixed column is fixedly connected to a side wall of one of the slot plates, one end of the fixed long plate is fixedly connected to a side wall of the fixed column, and the rack is fixedly connected to a side wall of the fixed long plate.

[0017] Preferably, the positioning assembly includes a ratchet bar, a clamping block, a sliding round rod and a telescopic spring, the ratchet bar is fixedly connected to the other side wall of the fixed long plate, the outer walls on both sides of the shell are fixedly connected with fixed blocks, the sliding round rod is slidably connected to the fixed block, the clamping block is fixedly connected to one end of the sliding round rod, the clamping block is movably engaged with the ratchet bar, the two ends of the telescopic spring are respectively fixedly connected to the clamping block and the fixed block, and the other end of the sliding round rod passes through the fixed block and is connected to a pull ring.

[0018] Preferably, the second movable component includes a second fixed column, a second fixed long board and a second rack, the second fixed column is fixedly connected to a side wall of another slot plate, the two ends of the fixed long board are fixedly connected to the side walls of the second fixed column, the second rack is fixedly connected to the side walls of the second fixed long board, and the first rack and the second rack are not on the same horizontal plane.

[0019] Preferably, the driving assembly includes a spline shaft, gear 1 and gear 2, one end of the spline shaft is rotatably connected to a side wall of the shell, gear 1 and gear 2 are both fixedly connected to the spline shaft, and gear 1 is located directly below gear 2, gear 1 is meshed with rack 1, and gear 2 is meshed with rack 2.

[0020] The utility model has at least the following beneficial effects:

[0021] 1. By using the driving assembly to simultaneously drive the No. 1 moving assembly and the No. 2 moving assembly to move in relative directions, the columnar member is continuously squeezed in the oblique groove, so that the close fit between the shell 2 and the shell 1 is gradually increased, ensuring the tight state between the shell 1 and the shell 2. The operating method only requires power input to the driving assembly, and the positioning assembly positions the moving state of the No. 1 moving assembly, thereby continuously maintaining the tight state between the shell 1 and the shell 2. When the shell 1 and the shell 2 are disassembled, only the pull ring needs to be pulled. The operation is convenient, fast and simple, which improves the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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:

[0023] Figure 1 An isometric structural schematic diagram provided for the utility model;

[0024] Figure 2 A left side view provided for the utility model;

[0025] Figure 3 A schematic diagram of the explosion structure of the shell 1 and the shell 2 provided by the utility model;

[0026] Figure 4 A partial structural schematic diagram provided for the utility model;

[0027] Figure 5 The utility model provides Figure 4 A schematic diagram of the enlarged structure in the middle.

[0028] In the figure, 1, housing 1; 101, annular clamping groove; 2, housing 2; 201, annular clamping plate; 3, groove plate; 301, oblique groove; 4, moving assembly No. 1; 401, fixed column 1; 402, fixed long board 1; 403, rack 1; 5, moving assembly No. 2; 501, fixed column 2; 502, fixed long board 2; 503, rack 2; 6, driving assembly; 601, spline shaft; 602, gear 1 ; 603, gear two; 7, positioning assembly; 701, ratchet bar; 702, clamping block; 703, sliding round rod; 704, telescopic spring; 8, support rod; 9, columnar member; 10, slide rail; 11, arc block two; 1101, arc clamping block; 12, arc block one; 1201, arc clamping groove; 13, spring plate; 14, compression spring; 15, sliding limit rod; 16, fixed block; 17, pull ring. DETAILED DESCRIPTION

[0029] 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.

[0030] like Figure 1-Figure 5 As shown, the catalytic muffler for automobile provided in this embodiment includes a shell 1 and a shell 2, the outer walls of both sides of the shell 1 are respectively provided with a clamping fastening structure, the outer walls of both sides of the shell 2 are respectively provided with a clamping structure, the shell 1 and the shell 2 are movably clamped by the clamping fastening structure and the clamping structure, the shell 1 is provided with an annular clamping groove 101 on one end surface of the shell 1 close to the shell 2, the end surface of the shell 2 close to the shell 1 is fixedly connected with an annular clamping plate 201, and the annular clamping groove 101 is movably clamped with the annular clamping plate 201, and the two sides of the shell 2 are respectively fixedly connected with arc blocks 11, and the shell The two sides of the body 1 are respectively fixedly connected with arc blocks 12, and the arc block 12 is provided with an arc clamping groove 1201. The side wall of one side of the arc block 2 11 is fixedly connected with an arc clamping block 1101, and the arc clamping block 1101 and the arc clamping groove 1201 are movably clamped. When the shell 1 and the shell 2 are docked, the arc clamping block 1101 and the arc clamping groove 1201 can assist the shell 1 and the shell 2 to dock, and the annular clamping groove 101 and the annular clamping plate 201 are conducive to the sealing after the shell 1 and the shell 2 are docked, and when the shell 1 and the shell 2 are docked, they also play a function of assisting the docking;

[0031] The clamping fastening structural member includes two slot plates 3, a No. 1 moving assembly 4, a No. 2 moving assembly 5, a driving assembly 6 and a positioning assembly 7. The clamping structural member includes two support rods 8 and two columnar members 9. One end of the two support rods 8 is fixedly connected to the outer wall of one side of the shell 2, and the other end of the support rod 8 is fixedly connected to the columnar member 9. The structure on the clamping fastening structural member cooperates with the structure on the clamping structural member, so that the shell 1 and the shell 2 2 can be clamped and fixed;

[0032] The outer walls of both sides of the shell 1 are fixedly connected with slide rails 10, and the two slot plates 3 are slidably connected to the slide rails 10, and the two slot plates 3 are symmetrical, and an oblique groove 301 is opened on the slot plate 3, and the oblique groove 301 is movably connected to the columnar member 9, and one end of the oblique groove 301 is opened and communicated with the outer side of the slot plate 3, and a spring plate 13 is fixedly connected to the side wall of one side of the two slot plates 3, and a compression spring 14 is fixedly connected between the two springs. When the two slot plates 3 are not squeezed, the compression spring 14 will keep the two slot plates 3 in the initial position, and the two spring plates 13 are slidably connected with a sliding limit rod 15. When the two slot plates 3 are in the initial state, the end of the oblique groove 301 that is connected to the outside corresponds to the position of the columnar member 9, and the sliding limit rod 15 ensures the accuracy of the initial position of the two slot plates 3, and ensures that the columnar member 9 can enter the oblique groove 301;

[0033] The first moving assembly 4 and the second moving assembly 5 are respectively used to move the two slot plates 3. The first moving assembly 4 and the second moving assembly 5 are connected to the driving assembly 6. The driving assembly 6 is used to simultaneously drive the first moving assembly 4 and the second moving assembly 5 to move in relative or opposite directions. The driving assembly 6 can drive the two slot plates 3 to move in opposite or relative directions at the same time.

[0034] The No. 1 moving component 4 is connected to the positioning component 7. The positioning component 7 positions the No. 1 moving component 4 and then positions the driving component 6. When the No. 1 moving component 4 moves, the positioning component 7 can fix the No. 1 moving component 4 after it moves to the appropriate position, and the No. 1 moving component 4 can only move in one direction and cannot move in the opposite direction.

[0035] Further, such as Figure 1 As shown, the moving component No. 1 4 includes a fixed column 401, a fixed long board 402 and a rack 403. The fixed column 401 is fixedly connected to the side wall of one of the slot plates 3, the end of the fixed long board 402 is fixedly connected to the side wall of the fixed column 401, and the rack 403 is fixedly connected to the side wall of the fixed long board 402. By moving the rack 403, the fixed column 401 is driven to move through the fixed long board 402, and finally the slot plate 3 connected thereto is driven to move.

[0036] Furthermore, Figure 4 as well as Figure 5As shown, the positioning assembly 7 includes a ratchet bar 701, a clamping block 702, a sliding round rod 703 and a telescopic spring 704. The ratchet bar 701 is fixedly connected to the other side wall of the fixed long plate 402. The outer walls of both sides of the shell 1 are fixedly connected with a fixed block 16. The sliding round rod 703 is slidably connected to the fixed block 16. The clamping block 702 is fixedly connected to one end of the sliding round rod 703. The clamping block 702 is movably engaged with the ratchet bar 701. The two ends of the telescopic spring 704 are fixedly connected to the clamping block 702 and the fixed block 16 respectively. The other end of the sliding round rod 703 passes through the fixed block 16 and is connected with a pull ring 17. When moving, the ratchet bar 701 is driven to move, and in the process of moving, the ratchet teeth on the ratchet bar 701 continuously squeeze the block 702, and the block 702 is continuously lifted. Under the action of the telescopic spring 704, the block 702 is always engaged with the ratchet bar 701, and when the block 702 is engaged with the ratchet bar 701, the fixed long plate 402 can only move in one direction, thereby driving the driving assembly 6 to rotate only in a clockwise direction. By pulling the pull ring 17, the sliding round rod 703 is pulled, so that the block 702 and the ratchet bar 701 are no longer engaged, and the fixed long plate 402 is in a free moving state.

[0037] Further, if Figure 4 as well as Figure 5 As shown, the second moving component 5 includes a fixed column 2 501, a fixed long board 2 502 and a rack 2 503. The fixed column 2 501 is fixedly connected to a side wall of another slot plate 3. The end of the fixed long board 2 502 is fixedly connected to the side wall of the fixed column 2 501. The rack 2 503 is fixedly connected to the side wall of the fixed long board 2 502. The rack 1 403 and the rack 2 503 are not in the same horizontal plane to prevent the rack 2 503 from colliding with the fixed column 1 401 when moving. By moving the rack 2 503, the fixed column 2 501 is driven to move through the fixed long board 2 502, and finally the slot plate 3 connected thereto is driven to move.

[0038] Further, if Figure 4 as well as Figure 5 As shown, the driving assembly 6 includes a spline shaft 601, a gear 1 602 and a gear 2 603. One end of the spline shaft 601 is rotatably connected to the side wall of the housing 1. The gear 1 602 and the gear 2 603 are both fixedly connected to the spline shaft 601, and the gear 1 602 is located directly below the gear 2 603. The gear 1 602 is meshed with the rack 1 403, and the gear 2 603 is meshed with the rack 2 503. The spline shaft 601 facilitates the power input of the power equipment. When the spline shaft 601 rotates, it can drive the gear 1 602 and the gear 2 603 to rotate, and then drive the rack 1 403 and the rack 2 503 to move respectively.

[0039] like Figure 1-Figure 5 As shown, the principle of the automotive catalytic muffler provided in this embodiment is as follows: when in use, first dock the shell 1 with the shell 2 2. During the docking process, the arc-shaped clamping block 1101 and the arc-shaped clamping groove 1201 can assist the shell 1 with the shell 2 2 to dock, and the annular clamping groove 101 and the annular clamping plate 201 are beneficial to the sealing of the shell 1 with the shell 2 2 after docking. During the movement of the shell 2 2, the two columnar members 9 will slide into the oblique grooves 301 on the groove plate 3 respectively, and then the driving assembly 6 is used to simultaneously drive the No. 1 moving assembly 4 and the No. 2 moving assembly 5 to move in relative directions. During the movement, the oblique groove 301 will continuously squeeze the columnar member 9, which in turn drives the shell 2 2 It is continuously moved in the direction of the position of the shell 1. After the shell 1 and the shell 2 are tightly fitted and fixed, the driving component 6 is stopped. Under the action of the positioning component 7, the two slot plates 3 are in a relatively static state at this time. When it is necessary to separate the shell 1 and the shell 2, it is only necessary to pull the pull ring 17, and then pull the sliding round rod 703, so that the block 702 and the ratchet bar 701 are no longer engaged. At this time, the fixed long plate 402 is in a free moving state. Under the action of the compression spring 14, the two slot plates 3 slide in opposite directions on both sides until they stop when they move to the initial position. Then, the shell 1 and the shell 2 are separated to both sides to complete the separation of the shell 1 and the shell 2.

[0040] 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.

[0041] 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.

[0042] 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. A catalytic muffler for an automobile, comprising a housing 1 (1) and a housing 2 (2), characterized in that: The outer walls of both sides of the shell one (1) are respectively provided with a clamping fastening structure, and the outer walls of both sides of the shell two (2) are respectively provided with a clamping structure, and the shell one (1) and the shell two (2) are movably clamped together by the clamping fastening structure and the clamping structure; The clamping and fastening structural component comprises two slot plates (3), a first moving assembly (4), a second moving assembly (5), a driving assembly (6) and a positioning assembly (7), and the clamping structural component comprises two support rods (8) and two columnar components (9); The outer walls of both sides of the housing (1) are fixedly connected with slide rails (10), the two slot plates (3) are slidably connected to the slide rails (10), and the two slot plates (3) are symmetrical, and the slot plates (3) are provided with oblique grooves (301), and the oblique grooves (301) are movably connected to the columnar member (9); The first moving component (4) and the second moving component (5) are respectively used to move the two slot plates (3); the first moving component (4) and the second moving component (5) are connected to the driving component (6); the driving component (6) is used to simultaneously drive the first moving component (4) and the second moving component (5) to move in relative or opposite directions; The first moving component (4) is connected to the positioning component (7), and the positioning component (7) positions the first moving component (4) and thereby positions the driving component (6).

2. A catalytic muffler for an automobile according to claim 1, characterized in that: An annular clamping groove (101) is provided on an end surface of the shell one (1) close to the shell two (2), an annular clamping plate (201) is fixedly connected to an end surface of the shell two (2) close to the shell one (1), and the annular clamping groove (101) is movably clamped with the annular clamping plate (201).

3. The catalytic muffler for automobile according to claim 1, characterized in that: The two sides of the shell body 2 (2) are respectively fixedly connected with arc blocks 2 (11), and the two sides of the shell body 1 (1) are respectively fixedly connected with arc blocks 1 (12), an arc-shaped snap-fit ​​groove (1201) is provided on the arc-shaped block 1 (12), and an arc-shaped snap-fit ​​block (1101) is fixedly connected to a side wall of one side of the arc-shaped block 2 (11), and the arc-shaped snap-fit ​​block (1101) is movably snap-fitted with the arc-shaped snap-fit ​​groove (1201).

4. The catalytic muffler for automobile according to claim 1, characterized in that: A spring plate (13) is fixedly connected to the side walls of one side of the two slot plates (3), a compression spring (14) is fixedly connected between the two springs, and a sliding limit rod (15) is slidably connected to the two spring plates (13).

5. The catalytic muffler for automobile according to claim 1, characterized in that: One end of each of the two support rods (8) is fixedly connected to the outer wall of one side of the second shell (2), and the other end of each of the support rods (8) is fixedly connected to the columnar member (9).

6. The catalytic muffler for automobile according to claim 1, characterized in that: The first movable component (4) comprises a fixed column (401), a fixed long plate (402) and a rack (403), wherein the fixed column (401) is fixedly connected to a side wall of one of the slot plates (3), one end of the fixed long plate (402) is fixedly connected to a side wall of the fixed column (401), and the rack (403) is fixedly connected to a side wall of the fixed long plate.

7. A catalytic muffler for an automobile according to claim 6, characterized in that: The positioning assembly (7) comprises a ratchet bar (701), a clamping block (702), a sliding round rod (703) and a telescopic spring (704); the ratchet bar (701) is fixedly connected to the other side wall of the fixed long plate (402); fixed blocks (16) are fixedly connected to the outer walls of both sides of the shell (1); the sliding round rod (703) is slidably connected to the fixed block (16); the clamping block (702) is fixedly connected to one end of the sliding round rod (703); the clamping block (702) is movably engaged with the ratchet bar (701); the two ends of the telescopic spring (704) are fixedly connected to the clamping block (702) and the fixed block (16) respectively; the other end of the sliding round rod (703) passes through the fixed block (16) and is connected to a pull ring (17).

8. A catalytic muffler for an automobile according to claim 7, characterized in that: The second moving component (5) includes a second fixed column (501), a second fixed long board (502) and a second rack (503), wherein the second fixed column (501) is fixedly connected to a side wall of another slot plate (3), the second end of the second fixed long board (502) is fixedly connected to a side wall of the second fixed column (501), the second rack (503) is fixedly connected to a side wall of the second fixed long board (502), and the first rack (403) and the second rack (503) are not on the same horizontal plane.

9. A catalytic muffler for an automobile according to claim 8, characterized in that: The driving assembly (6) comprises a spline shaft (601), gear one (602) and gear two (603); one end of the spline shaft (601) is rotatably connected to the side wall of the housing one (1); gear one (602) and gear two (603) are both fixedly connected to the spline shaft (601); gear one (602) is located directly below gear two (603); gear one (602) is meshed with rack one (403); and gear two (603) is meshed with rack two (503).

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