CN223305815U - A new type of DPF catalyst that is easy to disassemble - Google Patents

Abstract

The utility model provides a novel DPF (diesel particulate filter) catalyst convenient to detach, which comprises a heat insulation layer, a cylinder body, an external connection tube and an external connection tube, wherein the heat insulation layer is fixed on the outer side wall of the cylinder body, the cylinder body comprises a cylinder tube, a hump and a flanging, the flanging is arranged at one end of the cylinder tube, the flanging is in a horn shape, the hump is arranged at the other end of the cylinder tube, the hump is in a convex shape, the fixing structure comprises a clamp, the clamp is clamped and installed on the side walls of the two ends of the cylinder tube, the DPF catalyst is fixed in the cylinder tube, and the external connection tube is installed at the two ends of the cylinder tube through the clamp.

Description

Novel DPF catalyst converter convenient to dismantle

Technical Field

The utility model relates to the technical field of diesel engine tail gas aftertreatment, in particular to a novel DPF catalyst convenient to detach.

Background

The existing DPF catalyst generally comprises a cylinder body, a flanging pipe, a hump pipe and a V-shaped clamp gasket. The structure is formed by connecting a cylinder body-hump pipe welding assembly and a cylinder body-flanging pipe welding assembly through a V-shaped clamp.

The prior DPF catalyst introduces a welding procedure when being assembled, thereby not only increasing the manufacturing cost, but also being not beneficial to the integrity of parts, and the welding spot appears on the surface of the cylinder, so that the sealing performance of the product is poor, the torsion is needed to be increased to lock the clamp, on one hand, the clamp is possibly damaged due to overlarge torsion, and meanwhile, the labor is wasted.

Therefore, it is necessary to provide a new and convenient to detach DPF catalyst to solve the above technical problems.

Disclosure of utility model

The technical problem solved by the utility model is to provide the novel DPF catalyst which is convenient to save manufacturing cost, strengthen the integrity of parts and strengthen the tightness of the device and is convenient to detach.

The novel DPF catalyst convenient to detach comprises a heat insulation layer, a cylinder body, a DPF catalyst, an external connection pipe and a fixing structure, wherein the heat insulation layer is fixed on the outer side wall of the cylinder body, the cylinder body comprises a cylinder pipe, a hump and a flanging, the flanging is arranged at one end of the cylinder pipe, the flanging is in a horn shape, the hump is arranged at the other end of the cylinder pipe, the hump is in a convex shape, the fixing structure comprises a clamp, the clamp is clamped and installed on the side walls of two ends of the cylinder pipe, the DPF catalyst is fixed inside the cylinder pipe, and the external connection pipe is installed at two ends of the cylinder pipe through the clamp.

Preferably, the inner side wall of the clamp is concave, the side wall section of the clamp is larger than that of the hump, the clamp is annular, and one end of the clamp is not closed.

The novel easy-to-detach DPF catalyst of claim, wherein the fixing structure further comprises a fixing bolt, and the opening of the clip is connected and fixed by the fixing bolt.

The novel DPF catalyst convenient to detach according to claim, wherein the two ends of the cylinder are provided with the external connection pipes, one side wall of the external connection pipe is provided with a turnup in a horn shape, and the other side wall of the external connection pipe is provided with the hump.

The novel easy-to-detach DPF catalyst according to claim, wherein the left end of the tube is connected to the flange of the outer tube side wall through the hump, and the flange of the right end of the tube is connected to the hump of the outer tube side wall, and the clip is clamped at the junction of the tube and the outer tube.

Compared with the related art, the novel DPF catalyst convenient to detach has the following beneficial effects:

The utility model provides a novel DPF catalyst convenient to disassemble, which is characterized in that the device is provided with flanges and humps at two ends of a cylinder body under the premise of not influencing the external dimension of a product, the cylinder body is in an integral state, a welding process is not used, the strength of parts is improved, the consistency of the parts is improved, the novel technical scheme is that the welding process is eliminated, deformation factors generated in welding are reduced, the connecting clamp can ensure the sealing performance between an external pipe and the cylinder body according to normal torsion, thus protecting parts and simultaneously saving labor, compared with the original scheme, the novel scheme reduces the number of parts and can reduce the integral cost, and the structure has the advantages of being convenient for saving the manufacturing cost, reinforcing the integrity of the parts and enhancing the sealing performance of the device.

Drawings

FIG. 1 is a schematic diagram of a preferred embodiment of a novel easy-to-disassemble DPF catalyst provided by the present utility model;

FIG. 2 is a schematic view of the structure of the front overall section shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the portion A shown in FIG. 2;

FIG. 4 is an enlarged schematic view of the portion B shown in FIG. 2;

Fig. 5 is a schematic view of the overall shape of the extension tube shown in fig. 1.

The reference numerals in the figure are 1, an external pipe, 2, a cylinder body, 21, a bobbin, 22, humps, 23, flanging, 3, a fixed structure, 31, a clamp, 32, a fixed bolt, 4, a DPF catalyst, 5 and a heat insulation layer.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1-4, fig. 1 is a schematic structural view of a preferred embodiment of the novel easy-to-detach DPF catalyst provided by the present utility model, fig. 2 is a schematic structural view of a front overall section shown in fig. 1, fig. 3 is a schematic structural view of an enlarged portion a shown in fig. 2, fig. 4 is a schematic structural view of an enlarged portion B shown in fig. 2, and fig. 5 is a schematic structural view of an overall shape of an outer adapter shown in fig. 1, wherein the novel easy-to-detach DPF catalyst comprises a heat insulation layer 5, a cylinder 2, an outer side wall of the cylinder 2 is fixed with the heat insulation layer 5, the cylinder 2 comprises a cylinder 21, a hump 22 and a flange 23, one end of the cylinder 21 is provided with the flange 23, the flange 23 is horn-shaped, the other end of the cylinder 21 is provided with the hump 22, the hump 22 is convex, the fixing structure 3 comprises a clip 31, the clip 31 is snapped on side walls of both ends of the cylinder 21, the DPF catalyst 4 is fixed on the inner side wall of the cylinder 21, and the DPF catalyst 4 is externally connected with the clip 31 through the outer adapter 1.

In the specific implementation process, as shown in fig. 1, 2, 3 and 4, the inner side wall of the clamp 31 is concave, the side wall section of the clamp 31 is larger than the side wall section of the hump 22, the clamp 31 is annular, one end of the clamp 31 is not closed, the external pipe 1 is installed at two ends of the cylinder 2, one side wall of the external pipe 1 is provided with a horn-shaped flanging, the other side wall of the external pipe 1 is provided with the hump 22, the left end of the pipe 21 is connected with the flanging 23 of the side wall of the external pipe 1 through the hump 22, the flanging 23 of the right end of the pipe 21 is connected with the hump 22 of the side wall of the external pipe 1, the clamp 31 is clamped at the joint of the pipe 21 and the external pipe 1, the pipe 21 is conveniently connected with the external pipe 1 through the flanging 23 and the hump 22, the joint of the pipe 21 and the external pipe 1 is fixedly clamped with the flange 31 through the clamp 31, and the joint of the pipe 1 is tightly sealed.

In the specific implementation process, as shown in fig. 1, 2, 3 and 4, the fixing structure 3 further includes a fixing bolt 32, and the opening of the clip 31 is connected and fixed by the fixing bolt 32, so that the two ends of the clip 31 are conveniently and fixedly connected by the fixing bolt 32, and the clip 31 can firmly fix the connection node of the bobbin 21 and the outer tube 1.

The novel DPF catalyst convenient to detach provided by the utility model has the following working principle:

When the exhaust pipe is used, the two ends of the pipe 21 are respectively and correspondingly connected with the external connecting pipe 1, the flange 23 arranged at one end of the external connecting pipe 1 is abutted with the hump 22 arranged at the left end of the pipe 21, the flange 23 arranged at the right end of the pipe 21 is abutted with one end of the hump 22 arranged at one end of the other external connecting pipe 1, the two ends of the pipe are respectively communicated with the two external connecting pipes 1, then the clamp 31 is clamped at the connecting joint of the pipe 21 and the external connecting pipe 1 through the clamp 31, the clamp 31 is fixed through the fixing bolt 32, and then the connecting point between the external connecting pipe 1 and the pipe 21 is tightly clamped and sealed by the clamp 31, so that exhaust gas can not leak through the connecting joint between the pipe and the external connecting pipe 1, the exhaust gas can directly enter the DPF catalyst 4 for conversion, particles and harmful gases in the converted exhaust gas are reduced, the pollution to the environment and the harm to the human health are reduced, the structure has the advantages of being convenient for manufacturing parts and enhancing the whole sealing performance.

Compared with the related art, the novel DPF catalyst convenient to detach has the following beneficial effects:

The utility model provides a novel DPF catalyst convenient to disassemble, which is characterized in that flanges and humps are arranged at two ends of a cylinder body under the premise of not influencing the external dimension of a product, the cylinder body is in an integral state, a welding process is not used, the strength of parts is improved, the consistency of the parts is improved, the welding process is eliminated, deformation factors generated in welding are reduced, the clamp 31 for connection can ensure the sealing performance between an external pipe 1 and the cylinder body 2 according to normal torsion, parts are protected, meanwhile, labor is saved, compared with the original scheme, the number of the parts is reduced, the integral cost is reduced, the structure has the advantages of being convenient for saving the manufacturing cost, enhancing the integrity of the parts, and enhancing the tightness of the device.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (5)

1. A novel easy-to-detach DPF catalyst, comprising;

A heat insulating layer (5);

The heat insulation layer (5) is fixed on the outer side wall of the barrel (2), the barrel (2) comprises a barrel (21), a hump (22) and a flanging (23), the flanging (23) is arranged at one end of the barrel (21), the flanging (23) is in a horn shape, the hump (22) is arranged at the other end of the barrel (21), and the hump (22) is in a convex shape;

the fixing structure (3), the fixing structure (3) comprises a clamp (31), and the clamp (31) is clamped and installed on the side walls of the two ends of the bobbin (21);

A DPF catalyst (4), wherein the DPF catalyst (4) is fixed inside the bobbin (21);

And the external connecting pipe (1) is arranged at two ends of the bobbin (21) through the clamp (31).

2. The novel easy-to-detach DPF catalyst according to claim 1, wherein the inner side wall of the collar (31) is concave, and the side wall section of the collar (31) is larger than the side wall section of the hump (22), the collar (31) is annular, and one end of the collar (31) is not closed.

3. The novel easy-to-detach DPF catalyst according to claim 1, wherein the fixing structure (3) further comprises a fixing bolt (32), and the opening of the clip (31) is connected and fixed by the fixing bolt (32).

4. The novel DPF catalyst convenient to detach according to claim 1, wherein the two ends of the cylinder body (2) are provided with the external connection tube (1), one side wall of the external connection tube (1) is provided with a turnup in a horn shape, and the other side wall of the external connection tube (1) is provided with the hump (22).

5. The novel easy-to-detach DPF catalyst according to claim 1, wherein the left end of the bobbin (21) is connected with the flange (23) of the outer tube (1) side wall through the hump (22), and the flange (23) of the right end of the bobbin (21) is connected with the hump (22) of the outer tube (1) side wall, and the clip (31) is clamped at the junction of the bobbin (21) and the outer tube (1).