Compressing and anti-loosening structure of engine exhaust pipe

Abstract

The utility model discloses an engine exhaust pipe pressing anti-loosening structure, and relates to the technical field of exhaust pipe pressing structures. The device comprises an upper fixing ring, the bottom of the upper fixing ring is in contact with a lower fixing ring, a fixing plate is arranged above the upper fixing ring, a rotating hole is formed in the center of the fixing plate, the inner wall of the rotating hole is in contact with a small threaded rod, and the top of the small threaded rod is fixedly connected with a rotating block. A rotating block is arranged on the upper fixing ring, a second limiting ring is arranged below the rotating block, a fixing block is fixedly connected to the top of the second limiting ring, and a sliding groove is formed in the right side of the fixing block. And then the two pull blocks are pulled to enable the second limiting ring to be integrally separated from the device body, the device can be integrally disassembled by lifting the pull blocks, the time needed for disassembly is shortened, meanwhile, the workload of automobile repair personnel is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of exhaust pipe clamping structure, and in particular relates to an engine exhaust pipe clamping and anti-loosening structure. Background Technology

[0002] The engine exhaust pipe is an important component of an internal combustion engine. It is responsible for expelling the exhaust gases produced after combustion. The exhaust pipe is usually made of metal and has the characteristics of high temperature resistance and corrosion resistance to cope with the working conditions of the engine under high temperature and high pressure. The car exhaust pipe is installed between the engine exhaust manifold and the muffler. It is an important part of the entire exhaust system. Therefore, most exhaust pipes need to be fixed with screws and nuts.

[0003] When the exhaust pipe needs to be repaired or its internal parts replaced, the threads and nuts need to be tightened to disassemble the exhaust pipe. However, disassembly is not convenient. It is necessary to tighten the screws and tighten the nuts at the same time to disassemble it, which not only takes time but also increases the workload of auto repair personnel and reduces work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an engine exhaust pipe clamping and anti-loosening structure. By turning the rotating block, the second limiting ring moves downward, releasing the restriction on the upper and lower fixed rings. Then, by pulling the two pull blocks, the second limiting ring is completely detached from the device body. Lifting the pull blocks allows the entire device to be removed. This solves the problem that the existing exhaust pipe is inconvenient to disassemble, requiring the screws to be fixed while the nuts are being turned, which is not only time-consuming but also increases the workload of auto repair personnel and reduces work efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an engine exhaust pipe clamping and anti-loosening structure, comprising an upper fixing ring, a lower fixing ring contacting the bottom of the upper fixing ring, a fixing plate above the upper fixing ring, a rotating hole at the center of the fixing plate, a small threaded rod contacting the inner wall of the rotating hole, a rotating block fixedly connected to the top of the small threaded rod, a second limiting ring below the rotating block, a fixing block fixedly connected to the top of the second limiting ring, a sliding groove on the right side of the fixing block, a connecting block contacting the inner wall of the sliding groove, and a pull block fixedly connected to the left side of the connecting block. This utility model, by setting the rotating block, specifically by twisting the rotating block, moves the second limiting ring downwards, releasing the restriction on the upper and lower fixing rings. Then, pulling the two pull blocks causes the second limiting ring to detach from the device body. Lifting the pull blocks allows for complete removal of the device, reducing disassembly time, decreasing the workload of auto repair personnel, and improving work efficiency.

[0007] Further, the bottom of the fixed plate is fixedly connected with a fixed cylinder, the outer surface of the fixed cylinder is fixedly connected with a limiting ring one, the bottom of the limiting ring one is fixedly connected with a fixed ring one, the bottom of the limiting ring one is in contact with a limiting block, the number of the limiting block is several, and the several limiting blocks are arranged in an annular array, the fixed ring one is screwed tightly, the fixed ring one and the fixed ring two assist in clamping and pressing the upper fixed ring and the lower fixed ring, the effect of preventing loosening is achieved, the device is more convenient to assemble, and the exhaust pipe is also protected.

[0008] Further, the outer surface of the small threaded rod is fixedly connected with a limiting ring one close to one side of the fixed plate, the outer surface of the small threaded rod is threadedly connected with a moving block, the outer surface of the moving block is fixedly connected with a sliding block, and the inner wall of the fixed cylinder is provided with a sliding groove, the number of the sliding block is two, and the two sliding blocks are symmetrically arranged around the small threaded rod, the sliding groove is arranged to make the moving block more smooth during movement, and the stability of the whole device during movement is improved.

[0009] Further, the top of the limiting ring two is fixedly connected with a fixed ring two, the top of the fixed ring two is provided with a moving groove, and the number of the moving groove is two, and the two moving grooves are symmetrically arranged around the fixed plate, so that the fixed ring two can better fix the exhaust pipe and improve the convenience of the device.

[0010] Further, the outer surface of the moving block is provided with a clamping groove, the inner wall of the clamping groove is in contact with a limiting block, the number of the clamping groove is two, and the two clamping grooves are symmetrically arranged around the rotating block, so that the limiting block can fix the limiting ring two on the surface when entering the clamping groove.

[0011] Further, the right side of the fixed block is provided with a hole groove, the inner wall left side of the hole groove is fixedly connected with a spring, the outer surface of the connecting block is fixedly connected with a limiting ring two, the number of the spring is two, and the two springs are symmetrically arranged around the connecting block, so that the two springs can reset the limiting block more conveniently without manual resetting, and the convenience of the device is improved.

[0012] The utility model has the following beneficial effects:

[0013] The utility model is provided with a rotating block, which is screwed to make the limiting ring two move downward, release the limitation of the upper fixed ring and the lower fixed ring, then pull the two pull blocks to make the limiting ring two separate from the device body, lift the pull block to disassemble the device, reduce the time required for disassembly, reduce the workload of the mechanic, and improve the work efficiency.

[0014] The utility model discloses a fixed ring one, specifically is clockwise rotation small -size threaded rod drive moving block and make the rise, make restriction ring two synchronous motion, until fixed ring two contact lower fixed ring, tighten, make fixed ring one with fixed ring two to the effect of auxiliary clamping compression of upper fixed ring and lower fixed ring, prevent the effect of loosening, the device is more convenient when assembling, also has played the effect of protection to the exhaust pipe.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings described simply introduce, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is the utility model rotating block structure schematic diagram;

[0018] Figure 2 It is the utility model fixed cylinder structure schematic diagram;

[0019] Figure 3 It is the utility model small -size threaded rod structure schematic diagram;

[0020] Figure 4 It is the utility model clamping groove structure schematic diagram;

[0021] Figure 5 It is the utility model fixed block structure schematic diagram.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, upper fixed ring;11, lower fixed ring;12, fixed plate;13, rotating block;2, fixed cylinder;21, restriction ring one;211, fixed ring one;212, limit block;3, small -size threaded rod;31, limit ring one;32, sliding slot;33, moving block;331, sliding block;4, restriction ring two;41, fixed ring two;411, moving groove;42, clamping groove;421, limit block;5, connecting block;51, limit ring two;511, pull block;52, fixed block;521, spring. DETAILED DESCRIPTION

[0024] With reference to the drawings and embodiments of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figures 1-5 As shown in the figure, the utility model is a kind of engine exhaust pipe pressing anti-loose structure, including upper fixed ring 1, upper fixed ring 1 bottom contact has lower fixed ring 11, upper fixed ring 1 top is provided with fixed plate 12, fixed plate 12 center is provided with rotating hole, rotating hole inner wall is contacted with small screw rod 3, small screw rod 3 top is fixedly connected with rotating block 13, rotating block 13 below is provided with limit ring two 4, limit ring two 4 top is fixedly connected with fixed block 52, fixed block 52 right side is provided with sliding slot, sliding slot inner wall is contacted with connecting block 5, connecting block 5 left side is fixedly connected with pull block 511, the utility model is through the rotating block 13, specifically by screwing rotating block 13, limit ring two 4 moves downward, removes the restriction of upper fixed ring 1 and lower fixed ring 11, then pull two pull blocks 511 and make limit ring two 4 whole body separate from device body, lift pull block 511 can the device whole body is removed, reduce the time required for disassembly, also reduce the work load of the person of gas repair, improve work efficiency.

[0026] Fixed plate 12 bottom is fixedly connected with fixed cylinder 2, fixed cylinder 2 outer surface is fixedly connected with limit ring one 21, limit ring one 21 bottom is fixedly connected with fixed ring one 211, limit ring one 21 bottom is contacted with limit block 212, the number of limit block 212 is several, several limit blocks 212 are annular array settings, the utility model is through the setting lower fixed ring one 211, specifically clockwise rotating small screw rod 3 drives moving block 33 to ascend, make limit ring two 4 synchronous motion, until fixed ring two 41 contact lower fixed ring 11, tighten, make fixed ring one 211 and fixed ring two 41 to the effect of auxiliary clamping compression on upper fixed ring 1 and lower fixed ring 11, prevent loosening, the device is more convenient when assembling, also has the protection effect to exhaust pipe.

[0027] Small screw rod 3 outer surface is fixedly connected with limit ring one 31 on one side close to fixed plate 12, small screw rod 3 outer surface is screw-connected with moving block 33, moving block 33 outer surface is fixedly connected with sliding block 331, fixed cylinder 2 inner wall is provided with sliding slot 32, the number of sliding block 331 is two, two sliding blocks 331 are symmetrically arranged with small screw rod 3 as center.

[0028] The fixing ring two 41 is fixedly connected to the top of the limiting ring two 4, and the moving grooves 411 are arranged at the top of the fixing ring two 41.

[0029] The clamping grooves 42 are arranged on the outer surface of the moving block 33, and the limiting blocks 421 are arranged on the inner wall of the clamping grooves 42.

[0030] The hole grooves are arranged on the right side of the fixing block 52, the springs 521 are fixedly connected to the left side of the inner wall of the hole grooves, the limiting ring two 51 is fixedly connected to the outer surface of the connecting block 5, and the number of the springs 521 is two.

[0031] One specific application of the embodiment is that the fixing cylinder 2 is inserted into the inside of the upper fixing ring 1 and the lower fixing ring 11, because the upper fixing ring 1 and the lower fixing ring 11 are both provided with the fixing holes matched with the limiting blocks 212, the fixing cylinder 2 can be limited after being inserted, then the two pull blocks 511 are pulled to push the limiting ring two 4 upwards, so that the limiting blocks 421 enter the clamping grooves 42, then the pull blocks 511 are loosened, because the hole grooves are arranged in the inside of the fixing block 52 and the springs 521 are arranged in the inside of the hole grooves, the springs 521 can push the limiting blocks 421 to reset, and the limiting ring two 4 is fixed as a whole, then the rotating block 13 is twisted clockwise, so that the small threaded rod 3 is synchronously rotated, because the sliding blocks 331 matched with the sliding grooves 32 are arranged on the outer surface of the moving block 33, the moving block 33 moves upwards until the fixing ring two 41 contacts the bottom of the lower fixing ring 11, and the fixing ring two 41 is tightened to play a role of auxiliary clamping and compression, and the effect of preventing loosening is achieved, the device is more convenient to assemble, and the exhaust pipe is also protected, when the exhaust pipe needs to be overhauled and disassembled, the rotating block 13 is counterclockwise twisted, so that the moving block 33 drives the limiting ring two 4 to descend, and when the limiting ring two 4 descends to a position where the pull blocks 511 can be pulled out, the two pull blocks 511 are directly pulled, so that the pull blocks 511 drive the connecting block 5 and the limiting blocks 421 to move, so that the limiting blocks 421 are released from the clamping grooves 42, then the limiting ring two 4 as a whole can be disassembled, then the fixing plate 12 is lifted, and the device as a whole is taken out of the fixing hole, so that the quick disassembly is completed, the time required for disassembly is reduced, the workload of the mechanic is also reduced, and the work efficiency is improved.

[0032] In the description of the application, references to "one embodiment", "an example", "certain examples" etc. mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example" or "certain examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of the application disclosed above are only used to illustrate the application. The preferred embodiments do not describe all of the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations of the application can be made in light of the teachings above. The embodiments are chosen and described in order to best explain the principles of and practical application of the application and to enable others skilled in the art to best utilize the application. The application is merely limited by the claims and their full scope and equivalents.

Claims

1. An engine exhaust pipe clamping and anti-loosening structure, comprising an upper fixing ring (1), the bottom of which contacts a lower fixing ring (11), and a fixing plate (12) is provided above the upper fixing ring (1), wherein a rotating hole is provided at the center of the fixing plate (12), and a small threaded rod (3) contacts the inner wall of the rotating hole. The structure is characterized in that: The small screw rod (3) top fixedly connected with rotating block (13), the rotating block (13) below is provided with limit ring two (4), the limit ring two (4) top fixedly connected with fixed block (52), the fixed block (52) right side is equipped with sliding slot, the sliding slot inner wall contacts with connecting block (5), the connecting block (5) left side fixedly connected with pull block (511).

2. The engine exhaust pipe compression anti-looseness structure according to claim 1, characterized in that, The fixed plate (12) bottom fixedly connected with fixed cylinder (2), the fixed cylinder (2) outer surface fixedly connected with limit ring one (21), the limit ring one (21) bottom fixedly connected with fixed ring one (211).

3. The engine exhaust pipe compression anti-looseness structure according to claim 2, characterized in that, The limit ring one (21) bottom contacts with limit block (212), the number of limit block (212) is several, several limit block (212) is annular array setting.

4. The engine exhaust pipe compression anti-looseness structure according to claim 3, characterized in that, The small screw rod (3) outer surface is fixedly connected with limit ring one (31) near fixed plate (12) one side, the small screw rod (3) outer surface is connected with moving block (33) with screw thread, the moving block (33) outer surface fixedly connected with sliding block (331).

5. An engine exhaust pipe compression anti-looseness structure according to claim 4, characterized by The fixed cylinder (2) inner wall is equipped with sliding slot (32), the number of sliding block (331) is two, two sliding block (331) is symmetrically arranged with small screw rod (3) as center.

6. The engine exhaust pipe compression anti-looseness structure according to claim 1, characterized in that, The limit ring two (4) top fixedly connected with fixed ring two (41), the fixed ring two (41) top is equipped with moving slot (411), the number of moving slot (411) is two, two moving slot (411) is symmetrically arranged with fixed plate (12) as center.

7. The engine exhaust pipe compression anti-looseness structure according to claim 4, characterized in that, The moving block (33) outer surface is equipped with clamping groove (42), the clamping groove (42) inner wall contacts with limit block (421), the number of clamping groove (42) is two, two clamping groove (42) is symmetrically arranged with rotating block (13) as center.

8. The engine exhaust pipe compression anti-looseness structure according to claim 1, characterized in that, The fixed block (52) right side is equipped with hole slot, the hole slot inner wall left side fixedly connected with spring (521), the connecting block (5) outer surface fixedly connected with limit ring two (51), the number of spring (521) is two, two spring (521) is symmetrically arranged with connecting block (5) as center.

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