CN218266077U - Exhaust manifold sealing structure - Google Patents

Abstract

The utility model discloses an exhaust manifold seal structure, including first exhaust manifold, one side of first exhaust manifold is equipped with second exhaust manifold, and second exhaust manifold's one end plug-in connection to first exhaust manifold's inside, be equipped with the second sealing ring between second exhaust manifold and the first exhaust manifold, first sealing ring has been cup jointed to first exhaust manifold's outside surface. The utility model discloses, wherein through the locking bolt in the rotation screw hole, make the clamp plate of locking bolt one end remove, through the use of spring when the clamp plate removes, make the pinch-off blades remove, when pinch-off blades and first sealing ring butt, can press from both sides tight spacing to first sealing ring, wherein through the use of spring, can effectively increase the extrusion force of pinch-off blades to first sealing ring, thereby be convenient for improve the leakproofness between first sealing ring and first exhaust manifold and the second exhaust manifold, be favorable to improving its sealed effect.

Description

Exhaust manifold sealing structure

Technical Field

The utility model relates to an engine exhaust system seals technical field, especially relates to an exhaust manifold seal structure.

Background

The exhaust manifold is connected to the engine block, and has a branch pipe for collecting exhaust gas from each cylinder and introducing the collected exhaust gas into an exhaust manifold. The requirements for it are mainly to reduce the exhaust resistance as much as possible and to avoid mutual interference between cylinders. When the exhaust is excessively concentrated, mutual interference can be generated among cylinders, namely when a certain cylinder exhausts, the exhaust gas which is not exhausted and is emitted from other cylinders is just hit. This increases the resistance of the exhaust gas, thereby reducing the output of the engine. The solution is to divide the exhaust of the cylinders as much as possible, one branch for each cylinder, or one branch for both cylinders, and to lengthen and shape each branch as much as possible independently to reduce the mutual influence of the gases in the different pipes.

The existing Chinese patent with the publication number of CN214944525U discloses an exhaust manifold sealing structure, and the key points of the technical scheme are as follows: the exhaust system comprises a left exhaust manifold, a right exhaust manifold is inserted into the right side of the left exhaust manifold, and a fixing block is fixedly mounted on the outer surface of the left exhaust manifold. This exhaust manifold seal structure, the net piece through the copper mesh material is when exhaust manifold hot gas, the net piece can take place the inflation gradually and expand, thereby with left exhaust manifold and right exhaust manifold's the opposite side contact, the packing block of aluminium mesh material is when exhaust manifold hot gas, the packing block can take place the inflation equally and expand, make gas can not discharge from left exhaust manifold and right exhaust manifold junction, insert the post through will inserting in the jack from the fixed orifices, make left exhaust manifold and right exhaust manifold butt, twist connecting bolt into screw hole and thread groove, make the post of inserting can not remove again, when having guaranteed left exhaust manifold and right exhaust manifold leakproofness, left exhaust manifold and right exhaust manifold do not directly rotate with the screw and connect.

The above prior art scheme has the following defects, and in the actual use process, the air leakage phenomenon still exists only by sealing the joint of the left exhaust manifold and the right exhaust manifold through the filling block, so that the sealing effect is easily reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an exhaust manifold seal structure possesses sealed effectual, and the practicality is strong advantage, and then solves the problem among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an exhaust manifold seal structure, includes first exhaust manifold, one side of first exhaust manifold is equipped with second exhaust manifold, and the one end of second exhaust manifold plug-in connects to the inside of first exhaust manifold, be equipped with the second sealing ring between second exhaust manifold and the first exhaust manifold, first exhaust manifold's outside surface has cup jointed first sealing ring, second exhaust manifold's top surface and bottom surface run through and are equipped with the screw hole, and the internal thread of screw hole is connected with locking bolt, locking bolt's one end is equipped with the clamp plate, and the clamp plate below is equipped with the clamp plate, be equipped with the spring between clamp plate and the clamp plate.

Preferably, the second sealing ring is provided with a positioning bolt, and one end of the positioning bolt is in threaded connection with a positioning hole formed in the inner wall of the second exhaust manifold.

Preferably, the first sealing ring is matched with the first exhaust manifold and the second exhaust manifold.

Preferably, two sides of the top surface of the clamping plate penetrate through the pressing plate and are provided with limiting rods.

Preferably, the clamping plate is matched to the first sealing ring.

Preferably, the spring is provided with a plurality of springs, and the springs are uniformly distributed between the pressure plate and the clamping plate.

Preferably, the first exhaust manifold and the second exhaust manifold are mated.

Preferably, the bottom surface of the clamping plate is provided with anti-skidding lines which are uniformly distributed on the clamping plate in a staggered manner.

(III) advantageous effects

Compared with the prior art, the utility model provides an exhaust manifold seal structure possesses following beneficial effect:

(1) The utility model discloses in, seal between first exhaust manifold and the second exhaust manifold through the second seal ring on first seal ring on the first exhaust manifold and the second exhaust manifold, can effectively seal between first exhaust manifold and the second exhaust manifold, the possibility of gas leakage between first exhaust manifold and the second exhaust manifold has been reduced, wherein through the locking bolt who rotates in the screw hole, make the clamp plate of locking bolt one end remove, through the use of spring when the clamp plate removes, make the clamp plate remove, when clamp plate and first sealing ring butt, can press from both sides tightly spacing to first seal ring, wherein pass through the use of spring, can effectively increase the extrusion force of clamp plate to first seal ring, thereby be convenient for improve the leakproofness between first seal ring and first exhaust manifold and the second exhaust manifold, be favorable to improving its sealed effect.

(2) The utility model discloses in, when needs are dismantled first sealing ring and second sealing ring and are changed, through not hard up locking bolt, make the clamp plate of locking bolt one end remove, when the first sealing ring is kept away from to the clamp plate, take off second exhaust manifold, can change the first sealing ring on the first exhaust manifold, wherein through not hard up positioning bolt, make positioning bolt's one end keep away from the locating hole on the second exhaust manifold, can follow the second exhaust manifold and take off the second sealing ring, thereby can dismantle the change to the second sealing ring, be favorable to improving its practicality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an exhaust manifold sealing structure according to the present invention;

fig. 2 is an enlarged view of a sealing structure a of an exhaust manifold according to the present invention;

fig. 3 is a front view of an exhaust manifold sealing structure according to the present invention;

fig. 4 is a schematic diagram of a structure of a first exhaust manifold and a first sealing ring of the exhaust manifold sealing structure according to the present invention.

Illustration of the drawings:

1. a first exhaust manifold; 2. a second exhaust manifold; 3. a first seal ring; 4. a second seal ring; 5. positioning a bolt; 6. positioning holes; 7. locking the bolt; 8. a threaded hole; 9. pressing a plate; 10. a spring; 11. a limiting rod; 12. and (5) clamping the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an exhaust manifold sealing structure includes a first exhaust manifold 1, a second exhaust manifold 2 is disposed on one side of the first exhaust manifold 1, one end of the second exhaust manifold 2 is inserted into the first exhaust manifold 1, a second sealing ring 4 is disposed between the second exhaust manifold 2 and the first exhaust manifold 1, a first sealing ring 3 is sleeved on an outer side surface of the first exhaust manifold 1, threaded holes 8 are formed through a top surface and a bottom surface of the second exhaust manifold 2, a locking bolt 7 is threadedly connected inside the threaded holes 8, a pressing plate 9 is disposed at one end of the locking bolt 7, a clamping plate 12 is disposed below the pressing plate 9, a spring 10 is disposed between the clamping plate 12 and the pressing plate 9, wherein the first exhaust manifold 1 and the second exhaust manifold 2 are sealed by the first sealing ring 3 on the first exhaust manifold 1 and the second sealing ring 4 on the second exhaust manifold 2, can effectively seal between first exhaust manifold 1 and second exhaust manifold 2, the possibility of gas leakage between first exhaust manifold 1 and second exhaust manifold 2 has been reduced, wherein through rotating locking bolt 7 in the screw hole 8, make the clamp plate 9 of locking bolt 7 one end remove, through spring 10's use when clamp plate 9 removes, make clamp plate 12 remove, when clamp plate 12 and first sealing ring 3 butt, can press from both sides tightly spacingly to first sealing ring 3, wherein use through spring 10, can effectively increase clamp plate 12 to the extrusion force of first sealing ring 3, thereby be convenient for improve the leakproofness between first sealing ring 3 and first exhaust manifold 1 and the second exhaust manifold 2, be favorable to improving its sealed effect.

In one embodiment, the second sealing ring 4 is provided with a positioning bolt 5, and one end of the positioning bolt 5 is in threaded connection with a positioning hole 6 formed in the inner wall of the second exhaust manifold 2, wherein the positioning bolt 5 is loosened to enable one end of the positioning bolt 5 to be away from the positioning hole 6 in the second exhaust manifold 2, so that the second sealing ring 4 can be taken down from the second exhaust manifold 2, and the second sealing ring 4 can be detached and replaced, which is beneficial to improving the practicability thereof.

In one embodiment, the first sealing ring 3 mates with the first exhaust manifold 1 and the second exhaust manifold 2 to facilitate sealing between the first exhaust manifold 1 and the second exhaust manifold 2.

In one embodiment, two sides of the top surface of the clamping plate 12 are provided with a limiting rod 11 penetrating through the pressing plate 9, wherein the motion track of the clamping plate 12 can be effectively limited by using the limiting rod 11, so that the stability of the clamping plate 12 in the moving process is maintained.

In one embodiment, the clamping plate 12 mates with the first sealing ring 3 to facilitate clamping the first sealing ring 3 to a limited position, thereby facilitating maintaining the integrity of the first sealing ring 3 between the first exhaust manifold 1 and the second exhaust manifold 2.

In one embodiment, the number of the springs 10 is multiple, and the multiple springs 10 are uniformly distributed between the pressure plate 9 and the clamping plate 12, wherein the pressing force of the clamping plate 12 on the first sealing ring 3 can be effectively increased through the use of the springs 10, so that the sealing performance between the first sealing ring 3 and the first exhaust manifold 1 and the second exhaust manifold 2 is improved, and the sealing effect is improved.

In one embodiment, the first exhaust manifold 1 and the second exhaust manifold 2 are mated to facilitate coupling of the first exhaust manifold 1 and the second exhaust manifold 2.

In one embodiment, the bottom surface of the clamping plate 12 is provided with anti-slip lines, and the anti-slip lines are uniformly distributed on the clamping plate 12 in a staggered manner, wherein the anti-slip lines are used to effectively increase the friction force between the clamping plate 12 and the first sealing ring 3, so that the first sealing ring 3 can be clamped and limited conveniently.

The working principle is as follows:

during the use, seal between first exhaust manifold 1 and second exhaust manifold 2 through first sealing ring 3 on first exhaust manifold 1 and second sealing ring 4 on second exhaust manifold 2, can be effectively to sealing between first exhaust manifold 1 and second exhaust manifold 2, the possibility of gas leakage between first exhaust manifold 1 and second exhaust manifold 2 has been reduced, wherein through rotating locking bolt 7 in screw hole 8, make clamp plate 9 of locking bolt 7 one end remove, through the use of spring 10 when clamp plate 9 removes, make clamp plate 12 remove, when clamp plate 12 and first sealing ring 3 butt, can press from both sides tight spacing to first sealing ring 3, wherein through the use of spring 10, can effectively increase the extrusion force of clamp plate 12 to first sealing ring 3, thereby be convenient for improve the leakproofness between first sealing ring 3 and first exhaust manifold 1 and second exhaust manifold 2, be favorable to improving its sealed effect, wherein when needing to dismantle first sealing ring 3 and second sealing ring 4 and change, through locking bolt 7, make the one end of locking bolt 7 remove clamp plate 3 and the leakproofness between first exhaust manifold 1 and second exhaust manifold 2, thereby can be favorable to getting rid of second exhaust manifold 5 through getting back and getting back to the exhaust manifold 2, thereby can be favorable to getting rid of second exhaust manifold 5 through getting loose locating bolt 2, thereby can be favorable to getting back to taking first exhaust manifold 3, wherein the exhaust manifold 3, thereby can get away from the exhaust manifold 4 when the exhaust manifold 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides an exhaust manifold seal structure, includes first exhaust manifold (1), its characterized in that, one side of first exhaust manifold (1) is equipped with second exhaust manifold (2), and the one end of second exhaust manifold (2) is pegged graft to the inside of first exhaust manifold (1), be equipped with second sealing ring (4) between second exhaust manifold (2) and first exhaust manifold (1), first sealing ring (3) have been cup jointed on the outside surface of first exhaust manifold (1), the top surface and the bottom surface of second exhaust manifold (2) run through and are equipped with screw hole (8), and the inside threaded connection of screw hole (8) has locking bolt (7), the one end of locking bolt (7) is equipped with clamp plate (9), and clamp plate (9) below is equipped with clamp plate (12), be equipped with spring (10) between clamp plate (12) and clamp plate (9).

2. The exhaust manifold sealing structure according to claim 1, wherein a positioning bolt (5) is arranged on the second sealing ring (4), and one end of the positioning bolt (5) is in threaded connection with a positioning hole (6) formed in the inner wall of the second exhaust manifold (2).

3. An exhaust manifold sealing structure according to claim 1, characterized in that the first sealing ring (3) is fitted to the first exhaust manifold (1) and the second exhaust manifold (2).

4. The exhaust manifold sealing structure according to claim 1, wherein both sides of the top surface of the clamping plate (12) are provided with a stopper rod (11) penetrating the pressing plate (9).

5. An exhaust manifold sealing structure according to claim 1, characterized in that said clamping plate (12) is mated with the first sealing ring (3).

6. The exhaust manifold sealing structure according to claim 1, wherein a plurality of said springs (10) are provided in common, and a plurality of said springs (10) are uniformly distributed between said pressing plate (9) and said clamping plate (12).

7. An exhaust manifold sealing structure according to claim 1, characterized in that said first exhaust manifold (1) and said second exhaust manifold (2) are mated.

8. The exhaust manifold sealing structure according to claim 1, wherein the bottom surface of the clamping plate (12) is provided with anti-slip threads, and the anti-slip threads are uniformly distributed on the clamping plate (12) in a staggered manner.

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