Anti-loosening structure assembly of exhaust pipe

Abstract

The utility model discloses an anti-loosening structure assembly of an exhaust pipe. The anti-loosening structure assembly comprises a supporting frame, a hoop and a tail pipe connecting pipe fitting. A hoop body of the hoop is arranged on the tail pipe connecting pipe fitting in a sleeving mode, and a wing plate of the hoop is fixed to the supporting frame through a bolt. One end of the tail pipe connecting pipe fitting is in butt joint with a tail opening of the catalyst, the other end of the tail pipe connecting pipe fitting can be structurally adjusted according to actual requirements so as to be in butt joint with a tail pipe or a flameout cap, meanwhile, the pipe fitting is supported through the supporting frame and the hoop, the structure is simple, the weight is light, operation is easy, the tail pipe connecting diversity is increased, and the cost is reduced. And thirdly, the tail pipe or the flameout cap is firmly mounted and is not easy to loosen.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle exhaust pipes, in particular to an exhaust pipe anti-loosening structural component. Background Art

[0002] At present, the catalyst used to purify engine exhaust generally has its own tail port, and the tail port is welded to the catalyst as a whole. Since the tail pipe structure has been determined, this type of tail pipe form is difficult to meet the needs of the main engine manufacturer.

[0003] To solve the above technical problems, technicians in this field have proposed a catalyst without a tail pipe, and the OEM can add various tail pipe structures according to actual needs and spatial positions. The common forms of exhaust tail pipe connection at the existing exhaust port are flange connection and clamp connection. The above connection methods are heavily dependent on the surrounding space and require a large layout space. In addition, the current exhaust pipe connection structure is heavy and costly. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides an exhaust pipe anti-loosening structural assembly. In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important components or describe the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

[0005] The utility model adopts the following technical solutions:

[0006] Provided is an exhaust pipe anti-loosening structural assembly, comprising: a support frame, a clamp and a tail pipe connecting pipe fitting; a clamp body of the clamp is sleeved on the tail pipe connecting pipe fitting, and a wing plate of the clamp is fixed to the support frame by bolts;

[0007] The tail pipe connecting pipe fitting comprises: a fastening pipe body and an installation pipe body;

[0008] An annular groove for accommodating the clamp is provided along the circumference of the outer surface of the fastening tube body, a plurality of equally spaced long notches are provided along the axial direction of the fastening tube body, and a clamping groove is provided on the installation tube body.

[0009] Furthermore, the support frame includes: a transverse frame plate and a vertical frame plate; the transverse frame plate is bent toward one end of the clamp toward the side close to the catalyst to form an inner buckle plate, and the vertical frame plate is arranged at the end of the inner buckle plate.

[0010] Furthermore, the wing plate of the clamp is fixed to the vertical frame plate by bolts.

[0011] Furthermore, the card slot is composed of a guide groove and a positioning groove that are interconnected; a notch that is connected to the guide groove is opened at a position corresponding to the guide groove on the outer edge of the mounting tube body, the positioning groove is L-shaped, and the positioning groove extends from one side of the guide groove to one side of the outer edge of the mounting tube body.

[0012] Furthermore, the fastening tube body and the mounting tube body are an integrally formed structure, and the inner diameter of the fastening tube body is larger than the inner diameter of the mounting tube body. The fastening tube body and the mounting tube body are transitionally connected via a tapered tube body with a gradually decreasing diameter.

[0013] Furthermore, the fastening tube body is sleeved on the tail port of the catalyst, and the hoop body of the clamp is sleeved on the fastening tube body.

[0014] Furthermore, an inclined table surface is provided on the outer edge of the mounting tube body.

[0015] Furthermore, the groove width of the annular groove is greater than the hoop body width of the clamp.

[0016] The beneficial effects brought by the utility model are as follows: the anti-loosening structural component of the present application, one end of the tail pipe connecting pipe is connected to the tail port of the catalyst, and the other end can be structurally adjusted according to actual needs to connect with the tail tail pipe or the flameout cap, and the support of the pipe is achieved by the support frame and the clamp. First, the structure is simple, light and easy to operate. Second, the diversity of tail pipe connections is increased. Third, the tail pipe or the flameout cap is ensured to be securely installed and not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of an exhaust pipe anti-loosening structural component of the utility model when it is installed on a catalyst;

[0019] Figure 2 It is a structural schematic diagram of the support frame of the utility model;

[0020] Figure 3 yes Figure 2 A-direction view;

[0021] Figure 4 yes Figure 2 B-direction view;

[0022] Figure 5This is a schematic diagram of the connection between the tail pipe connecting pipe and the clamp of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the clamp of the utility model. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the utility model in conjunction with the accompanying drawings. It should be clear that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-6 As shown, in some illustrative embodiments, an exhaust pipe anti-loosening structural assembly is provided, comprising: a support frame 1, a clamp 2 and a tail pipe connecting pipe 3.

[0026] One end of the tail pipe connecting pipe 3 is sleeved on the tail port 4 of the catalyst. Specifically, the tail pipe connecting pipe 3 is inserted into the tail port 4 through clearance fit, and the other end can be structurally adjusted according to actual needs. Figure 1 What is shown in FIG. 1 is a schematic diagram of the present application being connected to the flameout cap 5 .

[0027] The hoop body 201 of the clamp is sleeved on the tail pipe connecting pipe 3, and the wing plate 202 of the clamp is fixed to the support frame 1 by bolts, and the support frame 1 is installed on the bracket for supporting the catalyst by bolts. The support frame 1 and the clamp 2 are used to support and fix the tail pipe connecting pipe 3, which has the advantages of stable structure, small space occupation and light weight.

[0028] The tail pipe connecting pipe 3 includes: a fastening pipe body 301 and an installation pipe body 302, and the fastening pipe body 301 and the installation pipe body 302 are an integrally formed structure. During actual installation, the fastening pipe body 301 is sleeved on the tail port 4 of the catalyst, and the hoop body 201 of the clamp is sleeved on the fastening pipe body 301.

[0029] The inner diameter of the fastening tube body 301 is larger than the inner diameter of the installation tube body 302 to match the actual installation requirements, and the fastening tube body 301 and the installation tube body 302 are transitionally connected through a tapered tube body 303 with a gradually decreasing diameter, so that the outside of the tail pipe connecting pipe 3 has a softer transition surface, thereby avoiding excessive local stress.

[0030] An annular groove 304 for accommodating the clamp 2 is provided along the circumference of the outer surface of the fastening tube body 301, and the groove width of the annular groove 304 is greater than the width of the clamp body of the clamp 2, so that the clamp 2 can adjust its own position. A plurality of equally spaced elongated notches 305 are provided along the axial direction of the fastening tube body 301. There are generally four elongated notches 305, which are evenly arranged along the pipe opening of the fastening tube body 301. The design of the elongated notches 305 can change the pipe opening diameter of the fastening tube body 301, so that the clamp 2 can tighten the tail pipe connecting pipe 3 and ensure the connection stability between the tail pipe connecting pipe 3 and the tail opening 4.

[0031] A clamping groove is provided on the mounting tube body 302. The clamping groove is used to realize the connection between the tail pipe connecting pipe 3 and the tail pipe or the flameout cap 5. The tail pipe and the flameout cap 5 are provided with a clamping column 6 for use with the clamping groove.

[0032] Specifically, the card slot is composed of a guide slot 306 and a positioning slot 307 that are interconnected. A notch 308 that is connected to the guide slot 306 is provided at the outer edge of the mounting tube 302 at a position corresponding to the guide slot 306, and the notch 308 is consistent with the slot width of the guide slot 306. The positioning slot 307 is L-shaped, and the positioning slot 307 extends from one side of the guide slot 306 to the outer edge of the mounting tube 302, that is, one end of the positioning slot 307 is connected to the inner end of the slot of the guide slot 306, and the other end of the positioning slot 307 extends to the side where the outer edge of the mounting tube 302 is located.

[0033] During installation, the clamping column 6 enters the positioning groove 307 from the notch 308, and as the flameout cap 5 is gradually inserted into the outside of the tail pipe connecting pipe 3, the clamping column 6 reaches the inner end of the groove of the positioning groove 307. At this time, the flameout cap 5 is rotated to make the clamping column 6 enter the positioning groove 307, and then the flameout cap 5 is pulled outward by one end until the clamping column 6 reaches the extended end of the positioning groove 307, so that the flameout cap 5 and the tail pipe connecting pipe 3 are connected. It has the advantages of simple installation and stable structure.

[0034] The outer edge of the mounting tube body 302 is provided with an inclined platform 309 to facilitate plugging the tail pipe or the flameout cap 5 onto the tail pipe connecting pipe 3 .

[0035] The support frame 1 includes: a horizontal frame plate 101 and a vertical frame plate 102, both of which are integrally formed structures. The horizontal frame plate 101 is bent toward the side close to the catalyst at one end of the clamp 2 to form an inner buckle plate 103, and the vertical frame plate 102 is arranged at the end of the inner buckle plate 103. The horizontal frame plate 101 is provided with an oblong hole 104, and the oblong hole 104 is used to connect the support frame 1 with the bracket for carrying the catalyst. The vertical frame plate 102 is provided with a screw hole 105, and the wing plate 202 of the clamp is fixed to the vertical frame plate 102 by bolts.

[0036] This application can meet the needs of adding different configurations to the rear of the tail pipe connecting pipe 3, such as tail pipes, flameout caps, etc., and can ensure that the tail pipe or flameout cap is installed securely and not easy to loosen. The clamp 2 clamps the overlapping part of the tail pipe connecting pipe 3 and the tail port 4, and is fixed to the bracket through the support frame 1 to prevent the tail pipe connecting pipe 3 from falling off. The rear structure of the tail pipe connecting pipe 3 can be freely designed to connect with the tail pipe or flameout cap. It can effectively ensure the reliability of installation and the feasibility of adding tail pipes and flameout caps. The installation design is simple and easy to operate, which increases the diversity of tail pipe connections, avoids modifying long-cycle parts such as catalysts, and improves maintenance convenience.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An exhaust pipe anti-loosening structural component, characterized in that: include: Support frame, clamp and tail pipe connecting fittings; The hoop body of the clamp is sleeved on the tail pipe connecting pipe fitting, and the wing plate of the clamp is fixed to the support frame by bolts; The tail pipe connecting pipe fitting comprises: a fastening pipe body and an installation pipe body; An annular groove for accommodating the clamp is provided along the circumference of the outer surface of the fastening tube body, a plurality of equally spaced long notches are provided along the axial direction of the fastening tube body, and a clamping groove is provided on the installation tube body.

2. The exhaust pipe anti-loosening structural assembly according to claim 1, characterized in that: The support frame includes: a horizontal frame plate and a vertical frame plate; the horizontal frame plate is bent toward one end of the clamp toward the side close to the catalyst to form an inner buckle plate, and the vertical frame plate is arranged at the end of the inner buckle plate.

3. The exhaust pipe anti-loosening structural assembly according to claim 2, characterized in that: The horizontal frame plate is provided with an oblong hole; the vertical frame plate is provided with a screw hole, and the wing plate of the clamp is fixed to the vertical frame plate by bolts.

4. The exhaust pipe anti-loosening structural assembly according to claim 3, characterized in that: The card slot consists of a guide groove and a positioning groove that are interconnected; a notch that is connected to the guide groove is provided at a position corresponding to the guide groove on the outer edge of the mounting tube body; the positioning groove is L-shaped, and the positioning groove extends from one side of the guide groove to one side of the outer edge of the mounting tube body.

5. The exhaust pipe anti-loosening structural assembly according to claim 4, characterized in that: The fastening tube body and the mounting tube body are an integrally formed structure, and the inner diameter of the fastening tube body is larger than the inner diameter of the mounting tube body. The fastening tube body and the mounting tube body are transitionally connected via a tapered tube body with a gradually decreasing diameter.

6. The exhaust pipe anti-loosening structural assembly according to claim 5, characterized in that: The fastening tube body is sleeved on the tail port of the catalyst, and the hoop body of the clamp is sleeved on the fastening tube body.

7. The exhaust pipe anti-loosening structural assembly according to claim 6, characterized in that: The outer edge of the installation tube body is provided with an inclined table surface.

8. The exhaust pipe anti-loosening structural assembly according to claim 7, characterized in that: The groove width of the annular groove is greater than the hoop body width of the hoop.

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