CN213980919U - Three way catalyst converter damping end cover for diesel vehicle - Google Patents

Abstract

The utility model discloses a three way catalyst converter damping end cover for diesel vehicle relates to tail gas pipe end cover technical field, this three way catalyst converter damping end cover for diesel vehicle, including the horn pipe, the inner wall of horn pipe heavy-calibre one end is close to open position department and is provided with the round bead, the outer wall fixedly connected with connection piece of horn pipe heavy-calibre one end, the surface of horn pipe small-calibre one end is provided with the bending tube, the bending tube is connected integratively with the relative one end of horn pipe, the surface of bending tube is provided with adapter sleeve, adapter sleeve keeps away from the one end of horn pipe small-calibre and bending tube connected integratively. The utility model discloses a set up bead, connection piece, bending tube and adapter sleeve, solved the fixed knot that three way catalyst converter among the prior art is most through not possessing the damping function construct the end cover and weld with the tail gas pipe, produce cracked problem easily under the high temperature vibration operating mode.

Description

Three way catalyst converter damping end cover for diesel vehicle

Technical Field

The utility model relates to a tail gas pipe end cover technical field specifically is a three way catalyst converter damping end cover for diesel vehicle.

Background

The three-way catalyst is an essential automobile part on an automobile, promotes the tail gas to generate chemical reaction through a catalytic component arranged inside, can convert harmful gases such as carbon monoxide, hydrocarbon, nitrogen oxide and the like discharged by the tail gas of the automobile into carbon dioxide, water and nitrogen through oxidation-reduction reaction, and converts toxic gases into non-toxic gases, thereby also laying an indispensable position of the three-way catalyst in automobile parts. The two ends of the three-way catalyst are respectively connected with an air inlet pipe and an air outlet pipe of a tail gas pipe through end covers of a fixed structure, and the three-way catalyst is installed on an automobile chassis through a clamp.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a three way catalyst converter damping end cover for diesel vehicle has solved the three way catalyst converter among the prior art and has mostly produced fissured problem easily under the high temperature vibration operating mode through the fixed knot who does not possess the damping function end cover and the tailpipe welding.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a three way catalyst converter damping end cover for diesel vehicle, includes the horn pipe, the inner wall of horn pipe heavy-calibre one end is close to open position department and is provided with the round bead, the outer wall fixedly connected with connection piece of horn pipe heavy-calibre one end, the surface of horn pipe small-bore one end is provided with the bending tube, the bending tube is connected integratively with the one end that the horn pipe is relative, the surface of bending tube is provided with adapter sleeve, adapter sleeve keeps away from the one end of horn pipe small-bore and bending tube connected integratively.

Preferably, the positions where the bending pipe is connected with the connecting sleeve and the flare pipe are smooth curved surfaces, and the bending pipe, the flare pipe and the connecting sleeve are coaxially arranged.

Preferably, the vertical distance between the bending pipe and the flared pipe is at least two millimeters.

Preferably, the width of the connecting sleeve is not less than the width of the bending tube.

Preferably, the connecting pieces are equidistantly arranged on the circumference of the large caliber of the flared tube, the plane of one end of the large caliber of the flared tube is positioned on the bisector of the length of the connecting pieces, and the inner side of the part, extending out from the flared tube, of the connecting pieces is flush with the inner wall of the flared tube.

(III) advantageous effects

The utility model provides a three way catalyst converter damping end cover for diesel vehicle possesses following beneficial effect:

the utility model has the advantages that the bead, the connecting piece, the bending pipe and the connecting sleeve are arranged, the three-way catalyst shell is inserted into the large-caliber end of the horn tube until the three-way catalyst shell is contacted with the bead, the two are welded, the connecting piece is welded with the three-way catalyst shell, the sealing and fixing effects are achieved, the connecting sleeve is sleeved on the tail gas pipe and is welded with the tail gas pipe, the sealing and fixing effects are achieved, as the connecting positions of the bending pipe, the horn tube and the connecting sleeve are smooth curved surfaces and are coaxial and are sleeved layer by layer, when vibration occurs, the tail gas pipe at the two ends of the horn tube and the three-way catalyst shell can vibrate independently, the vibration of one party can realize the effect of buffering and damping after being transmitted by the two smooth curved surfaces, the flexible connection replaces rigid connection, the vibration cracking is not easy to occur, and the problem that most of the three-way catalyst in the prior art is welded with the tail gas pipe through the fixed structure end cover without the damping function is solved, the problem of easy crack generation under the high-temperature vibration working condition.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a right side view of the present invention;

fig. 3 is a front sectional view of the present invention.

In the figure: 1. a flare tube; 2. a rib; 3. connecting sheets; 4. bending the tube; 5. and connecting the sleeve.

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.

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides a three way catalyst converter damping end cover for diesel vehicle, including horn pipe 1, the inner wall of 1 heavy-calibre one end of horn pipe is close to open position department and is provided with round bead 2, the outer wall fixedly connected with connection piece 3 of 1 heavy-calibre one end of horn pipe, horn pipe 1 and 3 fixed connection of connection piece, the surface of 1 small-calibre one end of horn pipe is provided with buckling tube 4, buckling tube 4 is connected integratively with 1 relative one end of horn pipe, buckling tube 4's surface is provided with adapter sleeve 5, adapter sleeve 5 keeps away from the one end of 1 small-calibre of horn pipe and buckles integrative with buckling tube 4.

As a technical optimization scheme of the utility model, the position department that 4 and connecting sleeve 5 and the horn tube 1 of buckling is smooth curved surface, and 4, the horn tube 1 and the coaxial setting of connecting sleeve 5 of buckling.

As a technical optimization scheme of the utility model, the perpendicular distance between 4 and the horn pipe 1 of buckling is two millimeters at least.

As a technical optimization scheme of the utility model, adapter sleeve 5's width is not less than the width of 4 of bending tube, and the tailpipe is pegged graft in adapter sleeve 5's inside and rather than the welding for smooth curved surface position is kept away from at the welding position, ensures that smooth curved surface can exert the damping effect, and the weld joint is difficult for the fracture during vibration.

As a technical optimization scheme of the utility model, 3 equidistance settings of connection piece are on the circumference at 1 heavy-calibre place of horn pipe, and the plane at 1 heavy-calibre one end place of horn pipe is located the bisection line of 3 lengths of connection piece, and the inboard of the part that connection piece 3 extended out from horn pipe 1 and the inner wall parallel and level of horn pipe 1, the shell with three way catalyst converter is conveniently inserted and connect to horn pipe 1 in, convenient rather than welding and 3 welding with the connection piece.

When using, insert 1 heavy-calibre one end of horn pipe with the three way catalyst converter shell until with bead 2 contact, weld the two and with connection piece 3 and three way catalyst converter shell welding, reach sealed and fixed effect, cup joint adapter sleeve 5 on the exhaust pipe and weld the two, reach sealed and fixed effect, because the pipe of buckling 4 and horn pipe 1 and adapter sleeve 5 hookup location are smooth curved surface, and the three is coaxial, cup joint layer upon layer, thereby when taking place the vibration, can vibrate alone between the exhaust pipe at horn pipe 1 both ends and the three way catalyst converter shell the two, the effect of buffering damping is realized after two smooth curved surface transmissions to the side vibration, the rigid connection is replaced to the flexonics, vibration fracture is difficult to appear.

To sum up can, the utility model discloses a set up bead 2, connection piece 3, bending tube 4 and adapter sleeve 5, solved the fixed knot that three way catalyst converter among the prior art is most through not possessing the damping function construct the end cover and weld with the tail gas pipe, produce cracked problem easily under the high temperature vibration operating mode.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a three way catalyst converter damping end cover for diesel vehicle which characterized in that: including horn pipe (1), the inner wall of horn pipe (1) heavy-calibre one end is close to open position department and is provided with round bead (2), outer wall fixedly connected with connection piece (3) of horn pipe (1) heavy-calibre one end, the surface of horn pipe (1) small-calibre one end is provided with buckling tube (4), buckling tube (4) is connected integratively with horn pipe (1) relative one end, the surface of buckling tube (4) is provided with adapter sleeve (5), the one end that horn pipe (1) small-calibre was kept away from in adapter sleeve (5) is connected integratively with buckling tube (4).

2. The three-way catalyst vibration reduction end cover for the diesel vehicle as set forth in claim 1, characterized in that: the position that buckled tube (4) and connecting sleeve (5) and horn pipe (1) are connected is smooth curved surface, and buckled tube (4), horn pipe (1) and connecting sleeve (5) coaxial setting.

3. The three-way catalyst vibration reduction end cover for the diesel vehicle as set forth in claim 1, characterized in that: the vertical distance between the bent pipe (4) and the flared pipe (1) is at least two millimeters.

4. The three-way catalyst vibration reduction end cover for the diesel vehicle as set forth in claim 1, characterized in that: the width of the connecting sleeve (5) is not less than that of the bent pipe (4).

5. The three-way catalyst vibration reduction end cover for the diesel vehicle as set forth in claim 1, characterized in that: connection piece (3) equidistance sets up on the circumference at horn tube (1) heavy-calibre place, and the plane at horn tube (1) heavy-calibre one end place is located the bisection line of connection piece (3) length, the inboard of the part that extends out and the inner wall parallel and level of horn tube (1) are gone up from horn tube (1) in connection piece (3).

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