Connecting flange for exhaust system

Abstract

The utility model provides a connecting flange for an exhaust system, and belongs to the technical field of connecting accessories. The problem that an existing flange is inconvenient to assemble is solved. The connecting flange for the exhaust system comprises two air pipes and a flange unit enabling the two air pipes to be connected, and the flange unit comprises a left flange ring connected with the corresponding air pipe and a right flange ring connected with the corresponding air pipe. The right flange ring is provided with a plurality of locking units which are connected with the right flange ring and enable the right flange ring and the left flange ring to abut against and be attached to each other, and the end face, attached to the right flange ring, of the left flange ring is provided with a plurality of protruding ring parts which protrude outwards in the axial direction and are coaxially arranged. A plurality of annular grooves allowing the corresponding protruding ring parts to be installed in an embedded mode are formed in the end face, attached to the left flange ring, of the right flange ring. The utility model has the advantage of being convenient to assemble.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of connecting fittings, and relates to a connecting flange for an exhaust system. BACKGROUND

[0002] The flange is generally used for connecting between pipe ends, and is connected through cooperation of studs and nuts in the actual exhaust pipe assembly process. Positioning is needed before assembly, so that the assembly hole is aligned with the flange. However, due to the narrow assembly space, it is inconvenient to observe the positioning, so that the assembly is relatively complicated. After assembly, the flange generally relies on abutting sealing, and the sealing effect is not good. If leakage occurs, the subsequent use is affected. SUMMARY

[0003] The utility model discloses a kind of connecting flanges for exhaust system, including two gas pipes and the flange unit of the two gas pipes being connected, it is characterized in that, the flange unit includes the left flange ring being connected with corresponding gas pipe and the right flange ring being connected with corresponding gas pipe, the right flange ring is provided with several locking units being connected with it and making right flange ring and left flange ring abutting fit, the end surface of left flange ring and right flange ring is fitted is provided with several convex ring parts being coaxially arranged and projecting axially outward, the end surface of right flange ring and left flange ring being fitted is provided with several annular grooves for embedding installation of corresponding convex ring parts.

[0004] The utility model discloses a kind of connecting flanges for exhaust system, including two gas pipes and the flange unit of the two gas pipes being connected, it is characterized in that, the flange unit includes the left flange ring being connected with corresponding gas pipe and the right flange ring being connected with corresponding gas pipe, the right flange ring is provided with several locking units being connected with it and making right flange ring and left flange ring abutting fit, the end surface of left flange ring and right flange ring is fitted is provided with several convex ring parts being coaxially arranged and projecting axially outward, the end surface of right flange ring and left flange ring being fitted is provided with several annular grooves for embedding installation of corresponding convex ring parts.

[0005] In the above-mentioned connecting flange for exhaust system, the locking unit includes locking block one, locking block two, rotating rod, threaded rod and locking cap, the locking block one and locking block two are respectively arranged on the left flange ring and the right flange ring, the locking block one and the locking block two are coaxially arranged, and the locking block one and the locking block two are provided with installation grooves for mounting the corresponding rotating rod and threaded rod, the two ends of the rotating rod are embedded in the corresponding locking block one or locking block two and are movably connected therewith, the threaded rod is arranged on the rotating rod and is connected therewith, and the locking cap is arranged on the threaded rod and is positioned relative to the corresponding locking block one or locking block two through thread cooperation.

[0006] In the above-mentioned connecting flange for exhaust system, the locking cap is provided with a handle part connected therewith and facilitating rotation thereof.

[0007] In the above-mentioned connecting flange for exhaust system, the outer end of the convex ring part is provided with inner and outer rounded corners, and the annular groove is provided with a sealing ring with enhanced sealing performance at the inner and outer rounded corners.

[0008] Compared with existing technologies, the connecting flange for the exhaust system is designed to be easy to assemble through flange units and locking units, and is equipped with a sealing ring to enhance the sealing effect. Attached Figure Description

[0009] Figure 1 This is a cross-sectional structural diagram of a connecting flange used in an exhaust system.

[0010] In the diagram, 1. Left flange ring; 2. Right flange ring; 3. Raised ring; 4. Locking block one; 5. Locking block two; 6. Rotating rod; 7. Threaded rod; 8. Locking cap. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 As shown, the connecting flange for the exhaust system includes two air pipes and a flange unit connecting the two air pipes. The flange unit includes a left flange ring 1 connected to the corresponding air pipe and a right flange ring 2 connected to the corresponding air pipe. The right flange ring 2 is provided with several locking units connected to it, causing the right flange ring 2 and the left flange ring 1 to abut and fit together. The end face of the left flange ring 1 that fits with the right flange ring 2 is provided with several axially outwardly protruding and coaxially arranged convex ring portions 3. The inner and outer dimensions of the convex ring portions 3 decrease from the outside to the inside. The end face of the right flange ring 2 that fits with the left flange ring 1 is provided with several annular grooves for the corresponding convex ring portions 3 to be embedded and installed. The convex ring portions 3 can also be provided on the right flange ring 2, or the convex ring portions 3 can be provided separately. On the left flange ring 1 and the right flange ring 2, the locking unit includes a locking block 4, a locking block 5, a rotating rod 6, a threaded rod 7, and a locking cap 8. The locking block 4 and the locking block 5 are respectively disposed on the left flange ring 1 and the right flange ring 2. The locking block 4 and the locking block 5 are coaxially arranged, and each of the locking blocks 4 and the locking block 5 has a mounting groove for the corresponding rotating rod 6 and the threaded rod 7 to be installed. Both ends of the rotating rod 6 are embedded in the corresponding locking block 4 or the locking block 2 and are movably connected to it. The threaded rod 7 is disposed on the rotating rod 6 and is connected to it. The locking cap 8 is disposed on the threaded rod 7 and is threaded to limit the corresponding locking block 4 or the locking block 2 5, while causing the left flange ring 1 and the right flange ring 2 to abut against each other.

[0013] To elaborate further, in order to facilitate locking assembly, the locking cap 8 is provided with a handle that is connected to it and allows it to rotate.

[0014] To elaborate further, in order to improve the sealing performance, the outer end of the convex ring 3 is provided with inner and outer rounded corners, and the annular groove is provided with sealing rings to enhance the sealing performance at the inner and outer rounded corners.

[0015] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0016] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A connecting flange for an exhaust system, comprising two air pipes and a flange unit for connecting the two air pipes, characterized in that, The flange unit includes a left flange ring (1) connected to a corresponding air pipe and a right flange ring (2) connected to a corresponding air pipe. The right flange ring (2) is provided with several locking units that are connected to it and make the right flange ring (2) and the left flange ring (1) abut and fit together. The end face of the left flange ring (1) that fits with the right flange ring (2) is provided with several axially protruding and coaxially arranged protruding ring parts (3). The end face of the right flange ring (2) that fits with the left flange ring (1) is provided with several annular grooves for the corresponding protruding ring parts (3) to be embedded and installed.

2. A connecting flange for an exhaust system according to claim 1, characterized in that, The locking unit includes a locking block one (4), a locking block two (5), a rotating rod (6), a threaded rod (7), and a locking cap (8). The locking block one (4) and the locking block two (5) are respectively disposed on the left flange ring (1) and the right flange ring (2). The locking block one (4) and the locking block two (5) are coaxially disposed, and the locking block one (4) and the locking block two (5) are respectively provided with mounting grooves for the corresponding rotating rod (6) and the threaded rod (7) to be installed. Both ends of the rotating rod (6) are embedded in the corresponding locking block one (4) or locking block two (5) and are movably connected to it. The threaded rod (7) is disposed on the rotating rod (6) and is connected to it. The locking cap (8) is disposed on the threaded rod (7) and is used to limit the corresponding locking block one (4) or locking block two (5) through threaded engagement.

3. A connecting flange for an exhaust system according to claim 2, characterized in that, The locking cap (8) is provided with a handle that is connected to it and facilitates its rotation.

4. A connecting flange for an exhaust system according to claim 1, characterized in that, The outer end of the convex ring (3) is provided with inner and outer rounded corners, and the annular groove is provided with sealing rings to enhance sealing at the inner and outer rounded corners.

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