Rear silencer air inlet pipe of hybrid electric vehicle

Abstract

The utility model discloses a hybrid electric vehicle rear muffler air inlet pipe which comprises a rear muffler air inlet pipe and a butt joint pipe, connecting flanges are installed on the opposite faces of the butt joint pipe and the rear muffler air inlet pipe, the connecting flanges abut against each other, an inner pipe is installed in an opening of the rear muffler air inlet pipe, and the other end of the inner pipe is inserted into the butt joint pipe. A top plate is arranged on the top face of the connecting flange, side plates are vertically installed at the four corners of the top plate, the inner side faces of the side plates abut against the outer side face of the connecting flange, and connecting strips for connecting the side plates on the two sides together are longitudinally arranged at the lower ends of the side plates. The connecting flange is simple in structure, a plurality of bolts do not need to be used, the top plate can be held by hand to directly sleeve the two connecting flanges with the side plates, the limiting strips and the limiting grooves can be connected in an inserted mode in the sleeving process so that the axial stability of the connecting flanges can be ensured, and the radial stability of the connecting flanges can be ensured through the inserted connecting strips and the inserted limiting strips.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile mufflers, in particular to a rear muffler intake pipe for a hybrid power automobile. Background Art

[0002] A hybrid vehicle is a vehicle whose driving system is composed of two or more single driving systems that can operate simultaneously. The so-called hybrid vehicle generally refers to a hybrid vehicle that uses a traditional internal combustion engine (diesel engine or gasoline engine) and an electric motor as a power source. In addition, there are also hybrid vehicles whose engines have been modified to use other alternative fuels, such as compressed natural gas, propane and ethanol fuel.

[0003] At present, hybrid vehicles are also equipped with mufflers, and may have mufflers installed at both the front and rear. This design is usually to further reduce exhaust noise and improve ride comfort. The rear muffler will be connected to the front muffler, and the rear muffler intake pipe will be used for connection. However, the installation of the rear muffler intake pipe is now more troublesome and is generally fixed by bolts. The bolt fixing method causes trouble for subsequent disassembly, especially high temperature will cause damage to the bolts, affecting the disassembly efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a hybrid vehicle rear exhaust air intake pipe, which does not require the use of multiple bolts and can be quickly installed and disassembled through the top plate and side plates sleeved on the outside of the connecting flange and the connecting strip below, thereby solving the problems mentioned in the background technology.

[0005] The utility model is realized through the following technical scheme: a hybrid vehicle rear exhaust air intake pipe, comprising a rear exhaust air intake pipe and a butt pipe, connecting flanges are installed on the opposite surfaces of the butt pipe and the rear exhaust air intake pipe, the connecting flanges are arranged in abutment, an inner pipe is installed inside the opening of the rear exhaust air intake pipe, the other end of the inner pipe is inserted into the butt pipe, a top plate is provided on the top surface of the connecting flange, side plates are vertically installed on the four corners of the top plate, the inner side surfaces of the side plates are in abutment with the outer side surfaces of the connecting flange, a connecting strip connecting the side plates on both sides is longitudinally arranged at the lower end of the side plate, fixing blocks are installed on the two side plates in the width direction, and one end of the connecting strip is arranged in abutment with the fixing block.

[0006] As a preferred technical solution, the inner side surfaces of the side panels are vertically provided with limit grooves, and the outer side surfaces of the connecting flanges protrude from the limit grooves to form limit strips, and the limit strips are slidably arranged in the limit grooves;

[0007] The inner side surfaces of the side panels are also longitudinally provided with positioning grooves, which pass through the limiting grooves. The two side surfaces of the connecting strips protrude opposite the positioning grooves to form positioning strips. The positioning strips are slidably arranged in the positioning grooves. The cross-sections of the positioning strips and the positioning grooves and the cross-sections of the limiting grooves and the limiting strips are all arranged in a trapezoidal structure.

[0008] As a preferred technical solution, a first screw hole is provided on the inner side of the fixing block, a second screw hole is axially provided at the center of the connecting strip and passes through the connecting strip, and bolts are threadedly connected in the first screw hole and the second screw hole.

[0009] As a preferred technical solution, arc-shaped reinforcement blocks are installed on the inner side surfaces of the top plate, one on the left and one on the right, and the inner side surfaces of the reinforcement blocks are in contact with the outer ring surface of the connecting flange.

[0010] As a preferred technical solution, the top plate and the side plates are integrally injection molded, and the top plate, the side plates and the connecting strips are all made of steel.

[0011] The beneficial effects of the utility model are as follows: the utility model has a simple structure and does not require the use of multiple bolts. The side plate can be directly sleeved on the outside of the two connecting flanges by holding the top plate. During the sleeve installation process, the limit strips and the limit grooves can be plugged in to ensure the axial stability of the connecting flanges, and the radial stability of the connecting flanges can be ensured by the inserted connecting strips and limit strips. Conversely, after pulling out the connecting strips, the side plate can be directly removed to complete the installation and disassembly of the post-digester intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a bottom view of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the utility model after the butt-joint pipe is removed;

[0016] Figure 4 It is a structural schematic diagram of the side plate in the utility model.

[0017] Among them, 1. Rear exhaust air intake pipe; 2. Butt pipe; 3. Top plate; 4. Connecting flange; 5. Reinforcement block; 6. Side plate; 7. Connecting strip; 8. Positioning strip; 9. Bolt; 11. Limit draft; 12. Positioning groove; 13. Fixing block; 14. Limit strip; 15. Inner pipe. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a hybrid vehicle rear exhaust air intake pipe of the utility model comprises a rear exhaust air intake pipe 1 and a butt pipe 2, connecting flanges 4 are installed on the opposite surfaces of the butt pipe 2 and the rear exhaust air intake pipe 1, and the connecting flanges 4 are set in abutment with each other, an inner tube 15 is installed inside the opening of the rear exhaust air intake pipe 1, and the other end of the inner tube 15 is inserted into the butt pipe 2, a top plate 3 is provided on the top surface of the connecting flange 4, side plates 6 are vertically installed on the four corners of the top plate 3, the inner sides of the side plates 6 are in abutment with the outer sides of the connecting flange 4, a connecting strip 7 for connecting the side plates 6 on both sides is longitudinally arranged at the lower end of the side plate 6, a fixing block 13 is installed on the two side plates 6 in the width direction, and one end of the connecting strip 7 is set in abutment with the fixing block 13.

[0022] In this embodiment, the inner side of the side plate 6 is vertically provided with a limiting groove, and the outer side of the connecting flange 4 is protruded to form a limiting strip 14 at the position opposite to the limiting groove, and the limiting strip 14 is slidably arranged in the limiting groove;

[0023] The inner side surfaces of the side panels 6 are longitudinally provided with positioning grooves 12, which are arranged through the limiting grooves, and the two side surfaces of the connecting strips 7 are protruding to form positioning strips 8 at the positions corresponding to the positioning grooves 12, and the positioning strips 8 are slidably arranged in the positioning grooves 12, and the cross-sections of the positioning strips 8 and the positioning grooves 12 and the cross-sections of the limiting grooves and the limiting strips 14 are all arranged in a trapezoidal structure;

[0024] The connecting strip can be fixed directly to the side panel through the positioning strip and positioning groove of the trapezoidal structure, avoiding the side panel from opening inwards, so as to ensure the axial firmness of the butt-joint pipe and the rear exhaust intake pipe.

[0025] In this embodiment, a first screw hole is provided on the inner side surface of the fixing block 13, a second screw hole is axially provided at the center of the connecting strip 7 and penetrates the connecting strip 7, and bolts 9 are threadedly connected in the first screw hole and the second screw hole.

[0026] In this embodiment, arc-shaped reinforcement blocks 5 are installed on the inner side surfaces of the top plate 3 , one on the left and one on the right. The inner side surfaces of the reinforcement blocks 5 are in contact with the outer ring surface of the connecting flange 4 .

[0027] In this embodiment, the top plate 3 and the side plate 6 are integrally injection molded, and the top plate 3, the side plate 6 and the connecting strip 7 are all made of steel material, which increases the firmness and service life and can better press the connecting flange inward.

[0028] During installation, first insert the inner tube on the rear exhaust air intake pipe into the butt pipe until the connecting flanges are butted together, then hold the top plate and put the side plate from top to bottom on the outside of the connecting flange, so that the inner side of the side plate is butted against the outer side of the connecting flange, and the limiting strip on the connecting flange can be inserted into the limiting groove, and the connecting flange can be axially positioned by the limiting strip and the limiting groove, thereby avoiding axial movement of the butt pipe and the rear exhaust air intake pipe;

[0029] After the above is completed, the connecting strip is inserted into the side panel. As the connecting strip is inserted, the positioning strip can be inserted into the positioning groove. The side panels can be connected together through the positioning strip and the positioning groove, which prevents the side panels from opening outwards, thereby ensuring the stability of the connection between the butt pipe and the rear exhaust intake pipe.

[0030] The connecting strip only needs one bolt to be fixed on the fixing block, and the installation and disassembly of the device can be completed by one bolt, which greatly increases the convenience.

[0031] The top surface of the connecting strip can contact with the bottom surface of the connecting flange, and the inner side surface of the reinforcing block contacts with the top surface of the connecting flange, so as to ensure the stability of the side plate after installation.

[0032] 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 are not conceived through creative work 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 defined in the claims.

Claims

1. A rear exhaust air intake pipe for a hybrid vehicle, characterized in that: The invention comprises a rear exhaust air intake pipe (1) and a butt pipe (2), wherein connecting flanges (4) are installed on the opposite surfaces of the butt pipe (2) and the rear exhaust air intake pipe (1), and the connecting flanges (4) are arranged in abutment with each other. An inner pipe (15) is installed inside the opening of the rear exhaust air intake pipe (1), and the other end of the inner pipe (15) is inserted into the butt pipe (2). A top plate (3) is provided on the top surface of the connecting flange (4), and a plurality of side plates (6) are installed on the top plate (3), and the inner side surfaces of the side plates (6) are all in contact with the outer side surfaces of the connecting flange (4). A connecting strip (7) for connecting the side plates (6) on both sides is longitudinally arranged at the lower end of the side plate (6), and a fixing block (13) is installed on the two side plates (6) in the width direction, and one end of the connecting strip (7) is in contact with the fixing block (13).

2. The hybrid vehicle rear exhaust air intake pipe according to claim 1, characterized in that: The inner side surfaces of the side plates (6) are vertically provided with limiting grooves, and the outer side surfaces of the connecting flanges (4) are protruding at the limiting grooves to form limiting strips (14), and the limiting strips (14) are slidably arranged in the limiting grooves; The inner side surfaces of the side plates (6) are longitudinally provided with positioning grooves (12), the positioning grooves (12) are arranged through the limiting grooves, and the two side surfaces of the connecting strips (7) are protruding at the positions opposite to the positioning grooves (12) to form positioning strips (8), and the positioning strips (8) are slidably arranged in the positioning grooves (12).

3. The hybrid vehicle rear exhaust air intake pipe according to claim 1, characterized in that: A first screw hole is provided on the inner side surface of the fixing block (13), a second screw hole is axially provided at the center of the connecting strip (7) and penetrates the connecting strip (7), and bolts (9) are threadedly connected in the first screw hole and the second screw hole.

4. The hybrid vehicle rear exhaust air intake pipe according to claim 1, characterized in that: Arc-shaped reinforcement blocks (5) are installed on the inner side surfaces of the top plate (3) on the left and right sides, and the inner side surfaces of the reinforcement blocks (5) are in contact with the outer ring surface of the connecting flange (4).

5. The hybrid vehicle rear exhaust air intake pipe according to claim 1, characterized in that: The top plate (3) and the side plate (6) are integrally formed by injection molding, and the top plate (3), the side plate (6) and the connecting strip (7) are all made of steel material.

6. The hybrid vehicle rear exhaust air intake pipe according to claim 1, characterized in that: The cross-sections of the positioning strip (8) and the positioning groove (12) and the cross-sections of the limiting groove and the limiting strip (14) are all arranged in a trapezoidal structure.

7. The hybrid vehicle rear exhaust air intake pipe according to claim 1, characterized in that: The side panels (6) are vertically mounted on the four corners of the top panel (3).

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