Exhaust gasket

Abstract

The utility model discloses an exhaust gasket, which relates to the field of sealing elements, and adopts the technical scheme that the exhaust gasket comprises a gasket main body, a large hole and two small holes, the large hole and the two small holes are formed in the gasket main body, and a convex ring is formed on the gasket main body in a stamping manner. The convex ring is deformed to a certain extent, so that the convex ring can be embedded into the exhaust pipe, the sealing performance between the exhaust pipe and the cylinder cover exhaust port is improved through the gasket body and the convex ring, and at the moment, the end face of the exhaust pipe and the end face of the cylinder cover exhaust port are only in contact with the end face of the mounting ring with the convex ring and are not in contact with the end face of the external connecting piece; the installation ring is installed in the containing opening in the outer connecting piece through the connecting piece, when the sealing performance of the protruding ring is affected by high-temperature gas in the exhaust pipe and the protruding ring needs to be replaced, only the installation ring with the protruding ring needs to be detached from the outer connecting piece, only the installation ring with the protruding ring needs to be replaced with a new installation ring with the protruding ring, and the whole gasket body does not need to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of sealing components, and more specifically, it relates to an exhaust gasket. Background Technology

[0002] An exhaust pipe gasket is an elastic sealing gasket installed between the exhaust pipe and the cylinder head exhaust port. Its main function is to improve the sealing between the exhaust pipe and the cylinder head exhaust port and prevent high-temperature gases after combustion from leaking from the connection between the exhaust pipe and the cylinder head exhaust port.

[0003] Existing exhaust gaskets have a large hole and several small holes, with the small holes located on both sides of the large hole. The large hole is used to connect with the exhaust pipe, and the small holes are used for installation with bolts passing through them. In order to ensure its sealing performance, some exhaust gaskets have a raised ring, with the large hole located inside the raised ring. Because the raised ring can undergo a certain deformation during the installation process, the sealing performance of the exhaust gasket is thus guaranteed.

[0004] Existing exhaust gaskets are usually one-piece structures, and the convex ring is fixedly set on the exhaust gasket. When the convex ring is embedded in the exhaust pipe, the convex ring will be affected by the high temperature gas in the exhaust pipe, which will affect the sealing performance of the convex ring to the exhaust pipe. This means that when the exhaust gasket needs to be replaced, only the entire exhaust gasket can be replaced, and the part with the convex ring cannot be replaced separately, which will cause unnecessary waste.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an exhaust gasket.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an exhaust gasket, comprising a gasket body, the gasket body comprising an outer piece and a mounting ring, the outer piece having two small holes and a receiving opening in the middle of the outer piece, the mounting ring being detachably connected to the receiving opening, the mounting ring having a protruding ring stamped on it, and a limiting mechanism for fixing the two relative to each other being provided between the mounting ring and the outer piece.

[0008] The present invention is further configured such that: a plurality of symmetrically arranged sliding strips are fixedly connected to the inner wall of the receiving port, and a plurality of sliding grooves for the sliding strips to slide into are provided on the outer wall of the mounting ring.

[0009] The present invention is further configured such that: the limiting mechanism includes a limiting protrusion and a limiting hole for embedding the limiting protrusion, the limiting protrusion is fixedly connected to the inner wall of the slide groove, and the limiting hole is opened on the side wall of the slide bar.

[0010] The present invention is further configured such that: the slide bar is integrally formed on the inner wall of the receiving opening, and the limiting protrusion is welded to the inner wall of the slide groove.

[0011] The present invention is further configured such that both the outer connecting piece and the mounting ring are made of stainless steel.

[0012] In summary, this utility model has the following beneficial effects: When the gasket body is installed between the exhaust pipe and the cylinder head exhaust port, the convex ring undergoes a certain degree of deformation, allowing it to be embedded in the exhaust pipe. This improves the sealing performance between the exhaust pipe and the cylinder head exhaust port through the gasket body and the convex ring. At this time, the end faces of the exhaust pipe and the cylinder head exhaust port only contact the end face of the mounting ring with the convex ring, not the end face of the outer fitting. The high-temperature gas in the exhaust pipe flows within the receiving port. When the sealing performance of the convex ring is affected by the high-temperature gas in the exhaust pipe and needs to be replaced, it is only necessary to remove the mounting ring with the convex ring from the outer fitting and replace it with a new mounting ring with the convex ring. There is no need to replace the outer fitting, which can continue to be used. The entire gasket body does not need to be replaced, allowing for partial replacement of the gasket body and saving costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the external connector and mounting ring in this utility model;

[0015] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0016] In the diagram: 101, external connector; 102, mounting ring; 2, small hole; 3, raised ring; 4, receiving port; 5, slide bar; 6, slide groove; 7, limiting protrusion; 8, limiting hole. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0018] Exhaust gasket, such as Figure 1 and Figure 2As shown, the device includes a washer body, which comprises an outer piece 101 and a mounting ring 102. The outer edge of the outer piece 101 is diamond-shaped, and two small holes 2 are formed on the outer piece 101. A receiving opening 4 is formed in the middle of the outer piece 101, and the mounting ring 102 is detachably connected to the receiving opening 4. A protruding ring 3 is stamped on the mounting ring 102. The protruding ring 3, the outer piece 101, and the mounting ring 102 are all made of stainless steel. A limiting mechanism is provided between the mounting ring 102 and the outer piece 101 to fix them relatively. When the washer body is installed between the exhaust pipe and the cylinder head exhaust port, the protruding ring 3 deforms to a certain extent, allowing it to be embedded in the exhaust pipe. This improves the sealing between the exhaust pipe and the cylinder head exhaust port through the washer body and the protruding ring 3. At this time, the end faces of the exhaust pipe and the cylinder head exhaust port only meet the... The end face of the mounting ring 102 with the convex ring 3 contacts the end face of the outer piece 101, but does not contact the end face of the outer piece 101. The mounting ring 102 is installed in the receiving port 4 on the outer piece 101 through a limiting mechanism. The high-temperature gas in the exhaust pipe flows in the receiving port 4. When the sealing performance of the convex ring 3 is affected by the high-temperature gas in the exhaust pipe and needs to be replaced, it is only necessary to remove the mounting ring 102 with the convex ring 3 from the outer piece 101 and replace it with a new mounting ring 102 with the convex ring 3. There is no need to replace the outer piece 101, and the outer piece 101 can continue to be used. There is no need to replace the entire gasket body, which allows for partial replacement of the gasket body, saving costs. The stainless steel material has good high-temperature resistance, which reduces the impact of the high-temperature gas in the exhaust pipe on the convex ring 3 and the mounting ring 102, and improves the service life of the convex ring 3 and the mounting ring 102.

[0019] like Figure 2 and Figure 3As shown, two symmetrically arranged slide bars 5 are fixedly connected to the inner wall of the receiving opening 4. Two grooves 6 are formed on the outer wall of the mounting ring 102 for the slide bars 5 to slide into. The limiting mechanism includes a limiting protrusion 7 and a limiting hole 8 for the limiting protrusion 7 to be inserted. The limiting protrusion 7 is fixedly connected to the inner wall of the groove 6, and the limiting hole 8 is formed on the side wall of the slide bar 5. The slide bar 5 is integrally formed on the inner wall of the receiving opening 4, and the limiting protrusion 7 is welded to the inner wall of the groove 6. When the mounting ring 102 is installed in the receiving opening 4 of the outer connecting piece 101, the slide bar 5 is received in the groove 6, and the limiting protrusion 7 is inserted into the limiting hole 8, so that both the mounting ring 102 and the protruding ring 3 can be stably installed in the receiving opening 4, improving the stability of the mounting ring 102 in the receiving opening 4 of the outer connecting piece 101, and the protruding ring 3 is inserted into... When the outer piece 101 is inside the exhaust pipe, the connection between the outer piece 101 and the mounting ring 102 will not be located inside the exhaust pipe, thus preventing the high-temperature gas inside the exhaust pipe from affecting the connection between the outer piece 101 and the mounting ring 102. Similarly, the slide bar 5 and the slide groove 6 are not located inside the exhaust pipe, thus preventing the high-temperature gas from affecting the connection between the slide bar 5 and the slide groove 6. When it is necessary to replace the convex ring 3, the mounting ring 102 is slid to disengage it from the receiving port 4. At this time, the limiting protrusion 7 deforms and gradually disengages from the limiting hole 8. After that, the inner wall of the slide groove 6 and the outer wall of the slide bar 5 no longer adhere to each other until the mounting ring 102 disengages from the receiving port 4. When the mounting ring 102 is removed, the convex ring 3 will move, so that only the detachable ring with the convex ring 3 needs to be removed, and the outer piece 101 can continue to be used without replacing the entire gasket body.

[0020] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An exhaust gasket comprising a gasket body, characterised in that: The gasket body comprises an outer connecting piece (101) and a mounting ring (102), two small holes (2) are formed in the outer connecting piece (101), a receiving opening (4) is formed in the middle of the outer connecting piece (101), the mounting ring (102) is detachably connected in the receiving opening (4), a convex ring (3) is stamped on the mounting ring (102), and a limiting mechanism for fixing the mounting ring (102) and the outer connecting piece (101) relative to each other is arranged between the mounting ring (102) and the outer connecting piece (101).

2. The exhaust gasket of claim 1, wherein: A plurality of symmetrically arranged sliding strips (5) are fixedly connected to the inner wall of the receiving opening (4), and a plurality of sliding grooves (6) for sliding the sliding strips (5) into are formed in the outer wall of the mounting ring (102).

3. The exhaust gasket of claim 2, wherein: The limiting mechanism comprises limiting convex points (7) and limiting holes (8) for embedding the limiting convex points (7), the limiting convex points (7) are fixedly connected to the inner wall of the sliding groove (6), and the limiting holes (8) are formed in the side wall of the sliding strip (5).

4. The exhaust gasket of claim 3, wherein: The sliding strip (5) is integrally formed on the inner wall of the receiving opening (4), and the limiting convex point (7) is welded on the inner wall of the sliding groove (6).

5. The exhaust gasket of claim 1, wherein: The outer connecting piece (101) and the mounting ring (102) are made of stainless steel.

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