CN219176424U - Tail gas emission system and vehicle with same - Google Patents

Abstract

The utility model provides an exhaust emission system and a vehicle with the same, wherein the exhaust emission system comprises an exhaust pipe part, the exhaust pipe part comprises a first exhaust pipe and a second exhaust pipe, the first exhaust pipe is provided with an exhaust inlet, and the second exhaust pipe is provided with a first discharge port; the exhaust emission system further includes: the box hopper is provided with a first cavity on the wall, and a second discharge port communicated with the first cavity is arranged on the wall; a third exhaust pipe having a first end in communication with the first chamber; the switching member has a first communication state in which the first exhaust pipe is communicated with the second exhaust pipe and the first exhaust pipe is disconnected from the third exhaust pipe, and a second communication state in which the first exhaust pipe is communicated with the third exhaust pipe and the first exhaust pipe is disconnected from the second exhaust pipe, and the switching member switches between the first communication state and the second communication state. The tail gas emission system solves the problem that tail gas blocks the sight of a driver when a vehicle runs in the prior art.

Description

Tail gas emission system and vehicle with same

Technical Field

The utility model relates to the technical field of electromechanical transportation, in particular to an exhaust emission system and a vehicle with the same.

Background

Currently, a 60-ton mining dump truck is a main transportation device for stripping operation, a vehicle tail gas discharge port of the dump truck is positioned below the left side of a vehicle, and an exhaust pipe is perpendicular to ground exhaust.

However, the exhaust pipe is perpendicular to the ground to exhaust the exhaust gas, and the exhaust pipe is located at the left lower side of the vehicle, which has the disadvantages that firstly, during the running of the vehicle, the exhaust gas is vertically and downwardly impacted on the ground, and dust is rolled up to cause environmental pollution; secondly, receive the temperature influence during construction operation winter, exhaust smoke discharge is big, and the vertical downward emission of tail gas can cause a large amount of smog to return around the vehicle, obstructs driver's sight, is difficult to guarantee vehicle operation safety.

In addition, when the temperature is too low during the peeling operation in winter, the peeled object sticks to the bin of the dump truck, and the operation efficiency of the dump truck is affected.

Disclosure of Invention

The utility model mainly aims to provide an exhaust emission system and a vehicle with the same, so as to solve the problem that exhaust gas blocks the sight of a driver when the vehicle in the prior art runs.

In order to achieve the above object, according to one aspect of the present utility model, there is provided an exhaust gas emission system including an exhaust pipe part for emitting exhaust gas, the exhaust pipe part including a first exhaust pipe having an exhaust gas inlet at a first end thereof and a second exhaust pipe having a first discharge port at a first end thereof; the exhaust emission system further includes: the box hopper is provided with a first cavity on the box hopper wall, and a second discharge port communicated with the first cavity is arranged on the box hopper wall; the first end of the third exhaust pipe is communicated with the first cavity; the switching member has a first communication state in which the second end of the first exhaust pipe is communicated with the second end of the second exhaust pipe and the second end of the first exhaust pipe is disconnected from the second end of the third exhaust pipe, and a second communication state in which the second end of the first exhaust pipe is communicated with the second end of the third exhaust pipe and the second end of the first exhaust pipe is disconnected from the second end of the second exhaust pipe, and the switching member switches between the first communication state and the second communication state.

Further, the conversion section includes: the conversion box is provided with a second cavity, a first communication port, a second communication port and a third communication port, wherein the first communication port, the second communication port and the third communication port are communicated with the second cavity, the first communication port is communicated with the second end of the first exhaust pipe, the second communication port is communicated with the second end of the second exhaust pipe, and the third communication port is communicated with the second end of the third exhaust pipe; the change-over switch is movably arranged in the change-over box and is provided with a first position for enabling the first communication port to be communicated with the second communication port and enabling the first communication port to be disconnected from the third communication port, and a second position for enabling the first communication port to be communicated with the third communication port and enabling the first communication port to be disconnected from the second communication port; the change-over switch is switched between a first position and a second position, and when the change-over switch is in the first position, the change-over part is in a first communication state; when the change-over switch is in the second position, the change-over member is in the second communication state.

Further, when the change-over switch is at the first position, the second cavity is divided into a first communication cavity and a second communication cavity, the first communication port and the second communication port are communicated with the first communication cavity, and the third communication port is communicated with the second communication cavity; when the change-over switch is in the second position, the second cavity is divided into a third communication cavity and a fourth communication cavity, the first communication port and the third communication port are communicated with the third communication cavity, and the second communication port is communicated with the fourth communication cavity.

Further, a rotating shaft is arranged on the change-over switch and is rotatably connected with the change-over box, so that the change-over switch rotates between a first position and a second position.

Further, the tail gas emission system further comprises a handle, the operating end of the handle is located outside the conversion box, and the connecting end of the handle penetrates through the wall of the conversion box to be connected with the conversion switch, so that the conversion switch and the rotating shaft are driven to rotate by rotating the handle.

Further, the exhaust emission system further includes: the third blast pipe is linked together with first cavity through the muffler, and the first end of muffler is linked together with the first end of third blast pipe, and the second end of muffler is linked together with first cavity to make tail gas pass through the muffler amortization.

Further, the silencer comprises a tubular structure and an end plate, the end plate seals the first end of the tubular structure, a communication hole is formed in the end plate, and the first end of the third exhaust pipe is communicated with the communication hole; the second end of the tubular structure is the second end of the silencer; the diameter of the tubular structure gradually decreases from the first end to the second end of the tubular structure; the diameter of the first end of the tubular structure is greater than the diameter of the first end of the third exhaust pipe, and the diameter of the second end of the tubular structure is greater than the diameter of the first end of the third exhaust pipe.

Further, the second discharge port is arranged on the side face of the box bucket wall, and the second discharge port is positioned at the tail of the box bucket.

Further, the exhaust emission system further includes: the blocking part is arranged on the upper side of the second discharge port, one end of the blocking part is connected with the tank bucket wall, the other end of the blocking part is connected with the tank bucket wall and positioned below the second discharge port, and the blocking part is covered on the second discharge port; a third discharge port is formed between the blocking part and the box bucket wall, and is positioned at the side part of the second discharge port and communicated with the second discharge port.

According to another aspect of the present utility model, there is provided a vehicle comprising an exhaust gas emission system, the exhaust gas emission system being the exhaust gas emission system described above.

The exhaust emission system comprises an exhaust pipe part for emitting exhaust, wherein the exhaust pipe part comprises a first exhaust pipe and a second exhaust pipe, the first end of the first exhaust pipe is provided with an exhaust inlet, the first end of the second exhaust pipe is provided with a first exhaust port, in a vehicle in the prior art, the second end of the first exhaust pipe is communicated with the second end of the second exhaust pipe, the exhaust enters the first exhaust pipe from the exhaust inlet, enters the second exhaust pipe through the first exhaust pipe and is finally emitted from the first exhaust port of the second exhaust pipe, so that the exhaust is emitted to the ground and then returns to the periphery of the vehicle to obstruct the vision of a driver; the exhaust emission system further comprises a box hopper and a third exhaust pipe, the box hopper wall of the box hopper is provided with a first cavity, the box hopper wall is provided with a second exhaust port communicated with the first cavity, the first end of the third exhaust pipe is also communicated with the first cavity, the exhaust emission system further comprises a conversion component, the conversion component is provided with a first communication state in which the second end of the first exhaust pipe is communicated with the second end of the second exhaust pipe and the second end of the first exhaust pipe is disconnected from the second end of the third exhaust pipe, the conversion component is further provided with a second communication state in which the second end of the first exhaust pipe is communicated with the second end of the third exhaust pipe and the second end of the first exhaust pipe is disconnected from the second end of the second exhaust pipe, and thus the conversion component enters the third exhaust pipe through the first exhaust pipe and enters the first cavity through the third exhaust pipe in the second communication state, and finally the exhaust gas is discharged from the second exhaust port on the box hopper wall, and the exhaust gas is not directly discharged to the surrounding of a vehicle, so that the vehicle can not be influenced by a driver. Therefore, the exhaust emission system solves the problem that the exhaust gas blocks the sight of a driver when the vehicle runs in the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a perspective view of an embodiment of an exhaust gas emission system according to the utility model in front view;

fig. 2 shows a schematic structural view of a blocking part of the exhaust gas emission system according to the present utility model;

FIG. 3 shows a schematic view of an embodiment of a vehicle according to the utility model;

fig. 4 shows a side view of an embodiment of an exhaust gas emission system according to the utility model.

Wherein the above figures include the following reference numerals:

10. a first exhaust pipe; 11. a tail gas inlet; 20. a three-way catalyst; 30. a second exhaust pipe; 31. a first discharge port; 50. a third exhaust pipe; 60. a conversion section; 61. a change-over switch; 62. a handle; 63. a rotating shaft; 80. a transfer box; 81. a first communication port; 82. a second communication port; 83. a third communication port; 84. a second cavity; 90. a blocking part; 91. a baffle plate; 92. a third discharge port; 100. a muffler; 101. a tubular structure; 102. an end plate; 110. a bin; 111. a bin wall; 112. a first cavity.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The present utility model provides an exhaust gas emission system, referring to fig. 1 to 4, comprising an exhaust pipe part for exhausting exhaust gas, the exhaust pipe part comprising a first exhaust pipe 10 and a second exhaust pipe 30, a first end of the first exhaust pipe 10 having an exhaust gas inlet 11, a first end of the second exhaust pipe 30 having a first exhaust port 31; the exhaust emission system further includes: the box hopper 110, a box hopper wall 111 of the box hopper 110 is provided with a first cavity 112, and a second discharge port communicated with the first cavity 112 is arranged on the box hopper wall 111; the third exhaust pipe 50, the first end of the third exhaust pipe 50 communicates with the first cavity 112; the switching member 60 has a first communication state in which the second end of the first exhaust pipe 10 is communicated with the second end of the second exhaust pipe 30 and the second end of the first exhaust pipe 10 is disconnected from the second end of the third exhaust pipe 50, and the switching member 60 also has a second communication state in which the second end of the first exhaust pipe 10 is communicated with the second end of the third exhaust pipe 50 and the second end of the first exhaust pipe 10 is disconnected from the second end of the second exhaust pipe 30, and the switching member 60 switches between the first communication state and the second communication state.

The exhaust emission system of the present utility model includes an exhaust emission part for emitting exhaust gas, the exhaust emission part including a first exhaust emission pipe 10 and a second exhaust emission pipe 30, a first end of the first exhaust emission pipe 10 having an exhaust gas inlet 11 and a first end of the second exhaust emission pipe 30 having a first exhaust port 31, in the vehicle of the prior art, a second end of the first exhaust emission pipe 10 is communicated with a second end of the second exhaust emission pipe 30, the exhaust gas enters the first exhaust emission pipe 10 through the exhaust gas inlet 11, enters the second exhaust emission pipe 30 through the first exhaust emission pipe 10, and finally is discharged through the first exhaust port 31 of the second exhaust emission pipe 30, such that the exhaust gas is discharged to the ground, and then returns to the surroundings of the vehicle to obstruct the driver's vision; the exhaust emission system according to the present utility model further includes the hopper 110 and the third exhaust pipe 50, the hopper wall 111 of the hopper 110 has the first cavity 112, the hopper wall 111 is provided with the second exhaust port communicating with the first cavity 112, the first end of the third exhaust pipe 50 is also communicated with the first cavity 112, the exhaust emission system further includes the switching member 60, the switching member 60 has the first communication state in which the second end of the first exhaust pipe 10 is communicated with the second end of the second exhaust pipe 30 and the second end of the first exhaust pipe 10 is disconnected from the second end of the third exhaust pipe 50, the switching member 60 further has the second communication state in which the second end of the first exhaust pipe 10 is communicated with the second end of the third exhaust pipe 50 and the second end of the first exhaust pipe 10 is disconnected from the second end of the second exhaust pipe 30, the switching member 60 is switched between the first communication state and the second communication state, so that the exhaust enters the third exhaust pipe 50 through the first exhaust pipe 10 and the third exhaust pipe 50 into the second end of the second exhaust pipe 30 and the second exhaust pipe 50 are separated from the second end of the second exhaust pipe 50, and the second exhaust pipe 50 is not returned to the outside the hopper wall 111, and the exhaust emission is not affected by the driver. Therefore, the exhaust emission system solves the problem that the exhaust gas blocks the sight of a driver when the vehicle runs in the prior art.

Specifically, the bottom of the first chamber 112 has a communication hole, and the first end of the third exhaust pipe 50 communicates with the communication hole of the bottom of the first chamber 112 to exhaust the exhaust gas into the first chamber 112.

Specifically, the second discharge port is a rectangular notch of 15 x 20 cm.

In the present embodiment, the conversion section 60 includes: the transfer box 80, the transfer box 80 has a second cavity 84 and a first communication port 81, a second communication port 82 and a third communication port 83 which are communicated with the second cavity 84, the first communication port 81 is communicated with the second end of the first exhaust pipe 10, the second communication port 82 is communicated with the second end of the second exhaust pipe 30, and the third communication port 83 is communicated with the second end of the third exhaust pipe 50; the change-over switch 61 is movably provided in the change-over box 80, the change-over switch 61 having a first position in which the first communication port 81 communicates with the second communication port 82 and the first communication port 81 is disconnected from the third communication port 83, and the change-over switch 61 further having a second position in which the first communication port 81 communicates with the third communication port 83 and the first communication port 81 is disconnected from the second communication port 82; the change-over switch 61 is switched between the first position and the second position, and when the change-over switch 61 is in the first position, the change-over member 60 is in the first communication state; when the changeover switch 61 is in the second position, the changeover member 60 is in the second communication state. By the switching action of the switching box 80, the exhaust gas can be discharged into the second exhaust pipe 30 or the third exhaust pipe 50 in the switching box 80.

In the specific implementation, when the change-over switch 61 is at the first position, the first communication port 81 and the second communication port 82 are communicated, and the tail gas enters the second exhaust pipe 30 through the second communication port 82 and is finally discharged at the lower part of the vehicle; when the change-over switch 61 is in the second position, the first communication port 81 is communicated with the third communication port 83, and the exhaust gas enters the third exhaust pipe 50 through the third communication port 83, passes through the first cavity 112, and is finally discharged through the second discharge port. The changeover switch 61 is switchably provided so that the driver can switch the position of exhaust gas according to the corresponding environment.

Specifically, the change-over switch 61 has a plate-like structure, and the second communication port 82 or the third communication port 83 can be completely blocked.

In the present embodiment, when the change-over switch 61 is in the first position, the second chamber 84 is partitioned into a first communication chamber and a second communication chamber, both the first communication port 81 and the second communication port 82 communicate with the first communication chamber, and the third communication port 83 communicates with the second communication chamber; when the change-over switch 61 is in the second position, the second chamber 84 is partitioned into a third communication chamber and a fourth communication chamber, the first communication port 81 and the third communication port 83 are both communicated with the third communication chamber, and the second communication port 82 is communicated with the fourth communication chamber. Such an arrangement allows different communication ports to be connected to different communication chambers partitioned in the second chamber 84 to control the on-off between the first communication port 81 and the second communication port 82 or between the first communication port 81 and the third communication port 83.

In the present embodiment, the rotation shaft 63 is provided on the change-over switch 61, and the rotation shaft 63 is rotatably connected to the change-over box 80 to rotate the change-over switch 61 between the first position and the second position.

In practice, the change-over switch 61 is rotated between the first position and the second position by the rotation shaft 63, and different communication chambers are formed, so that the exhaust gas is discharged from the first discharge port 31 or the second discharge port.

In this embodiment, the exhaust emission system further includes a handle 62, wherein an operation end of the handle 62 is located outside the conversion box 80, and a connection end of the handle 62 passes through a wall of the conversion box 80 to be connected with the conversion switch 61, so that the conversion switch 61 and the rotation shaft 63 are driven to rotate by rotating the handle 62.

In particular, after determining weather and environmental conditions, the driver may operate the handle 62 to rotate, so that the handle 62 drives the change-over switch 61 to rotate between the first position and the second position, and further exhaust is discharged from the first discharge port 31 or the second discharge port. When in winter, the change-over switch 61 is switched to the second position by operating the handle 62 outside the change-over box 80, and the tail gas enters the first cavity 112 from the third exhaust pipe 50, so that heat can be transferred to the inside of the box hopper 110 in the process of passing through the first cavity 112 to the second exhaust port due to a certain temperature of the tail gas, the effect of warming the box is achieved, and the phenomenon that materials are bonded with the box hopper 110 in winter is avoided, so that unloading efficiency is affected.

In this embodiment, the exhaust emission system further includes: the muffler 100, the third exhaust pipe 50 is communicated with the first cavity 112 through the muffler 100, the first end of the muffler 100 is communicated with the first end of the third exhaust pipe 50, and the second end of the muffler 100 is communicated with the first cavity 112, so that the exhaust gas passes through the muffler 100 to be silenced. By the sound deadening effect of the muffler 100, the driving experience of the driver during driving is improved.

In this embodiment, the muffler 100 includes a tubular structure 101 and an end plate 102, the end plate 102 blocking a first end of the tubular structure 101, a communication hole is provided in the end plate 102, and a first end of the third exhaust pipe 50 is communicated with the communication hole; the second end of the tubular structure 101 is the second end of the muffler 100; the diameter of the tubular structure 101 gradually decreases in the direction from the first end to the second end of the tubular structure; the diameter of the first end of the tubular structure 101 is larger than the diameter of the first end of the third exhaust pipe 50, and the diameter of the second end of the tubular structure 101 is larger than the diameter of the first end of the third exhaust pipe 50.

In specific implementation, the end plate 102 has a sealing effect, so that the tail gas is prevented from leaking from the joint of the silencer 100 and the third exhaust pipe 50, and the tail gas can completely enter the first cavity 112; the arrangement of the tubular structure 101 with the diameter gradually decreasing from the first end to the second end disperses the noise emitted by the tail gas after entering the tubular structure 101, and finally the tail gas gathers to the second end of the tubular structure 101 and enters the first cavity 112.

Specifically, the end plate 102 is a flange, and a sealing rubber ring is arranged at the connection position of the communication hole of the end plate 102 and the first end of the third exhaust pipe 50, so that a sealing effect is achieved, and leakage of tail gas is avoided.

Specifically, the diameter of the third exhaust pipe 50 is unchanged from the first end to the second end of the third exhaust pipe 50.

In the present embodiment, the second discharge port is provided at the side of the tank wall 111, and the second discharge port is located at the rear of the tank 110. The tail of the bin 110 is the rightmost position of the bin 110 in fig. 3.

In the specific implementation, the second exhaust port is arranged at a position that the tail gas is not directly discharged to the ground when being exhausted from the second exhaust port, so that the tail gas is not returned to the surroundings of the vehicle and the cab, and the sight of a driver is not influenced; and the second discharge port is arranged at the tail of the bin 110, so that the tail gas is fully contacted with the bin wall 111 of the bin 110 and transfers heat, and finally reaches the second discharge port at the tail of the bin 110, so that the bin wall 111 of the bin 110 has enough temperature in winter, and the phenomenon that materials such as coal and the like are adhered to the surface of the bin wall 111 is avoided.

In this embodiment, the exhaust emission system further includes: a blocking part 90, wherein one end of the blocking part 90 is connected with the tank wall 111 and is positioned above the second discharge port, the other end of the blocking part 90 is connected with the tank wall 111 and is positioned below the second discharge port, and the blocking part 90 is covered on the second discharge port; a third discharge port 92 is formed between the stopper portion 90 and the tank wall 111, and the third discharge port 92 is located at a side portion of the second discharge port and communicates with the second discharge port.

In particular, during implementation, the arrangement of the blocking portion 90 prevents sundries such as snow and dust from entering the first cavity 112, so that smoothness of exhaust gas emission in the first cavity 112 is ensured, and under the blocking effect of the blocking portion 90, the exhaust gas is discharged to the outside through the third discharge port 92 after being discharged through the second discharge port.

Specifically, as shown in fig. 2, the blocking portion 90 includes two blocking plates 91, first ends of the two blocking plates 91 are connected together in a welded manner, an included angle of 45 degrees is formed between the two blocking plates 91 after connection, a second end of one blocking plate 91 is connected with the tank wall 111 and located above the second discharge port, and a second end of the other blocking plate 91 is connected with the tank wall 111 and located below the second discharge port, so that two third discharge ports 92 which are oppositely arranged at two sides of the second discharge port are formed between the two blocking plates 91 of the blocking portion 90 and the second discharge port.

As shown in fig. 3, the second discharge port is covered by the blocking portion 90 in fig. 3, and is located at the rear side of the blocking portion 90, and the rear side of the blocking portion 90 is the direction from the blocking portion 90 to the tank wall 111 in fig. 3.

Specifically, the exhaust gas emission system further includes a three-way catalyst 20 disposed on the first exhaust pipe 10 near a first end thereof for purifying exhaust gas emitted from the vehicle.

The utility model also provides a vehicle, please refer to fig. 3, which includes an exhaust system, wherein the exhaust system is the exhaust system in the above embodiment.

Specifically, the vehicle is a dump truck for loading, transporting and discharging materials.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the exhaust emission system of the present utility model includes an exhaust emission part for emitting exhaust gas, the exhaust emission part including a first exhaust emission pipe 10 and a second exhaust emission pipe 30, a first end of the first exhaust emission pipe 10 having an exhaust gas inlet 11 and a first end of the second exhaust emission pipe 30 having a first exhaust port 31, in the vehicle of the prior art, a second end of the first exhaust emission pipe 10 is communicated with a second end of the second exhaust emission pipe 30, the exhaust gas enters the first exhaust emission pipe 10 through the exhaust gas inlet 11, enters the second exhaust emission pipe 30 through the first exhaust emission pipe 10, and finally is discharged through the first exhaust port 31 of the second exhaust emission pipe 30, such that the exhaust gas is discharged to the ground, and then returns to the surroundings of the vehicle to obstruct the driver's vision; the exhaust emission system according to the present utility model further includes the hopper 110 and the third exhaust pipe 50, the hopper wall 111 of the hopper 110 has the first cavity 112, the hopper wall 111 is provided with the second exhaust port communicating with the first cavity 112, the first end of the third exhaust pipe 50 is also communicated with the first cavity 112, the exhaust emission system further includes the switching member 60, the switching member 60 has the first communication state in which the second end of the first exhaust pipe 10 is communicated with the second end of the second exhaust pipe 30 and the second end of the first exhaust pipe 10 is disconnected from the second end of the third exhaust pipe 50, the switching member 60 further has the second communication state in which the second end of the first exhaust pipe 10 is communicated with the second end of the third exhaust pipe 50 and the second end of the first exhaust pipe 10 is disconnected from the second end of the second exhaust pipe 30, the switching member 60 is switched between the first communication state and the second communication state, so that the exhaust enters the third exhaust pipe 50 through the first exhaust pipe 10 and the third exhaust pipe 50 into the second end of the second exhaust pipe 30 and the second exhaust pipe 50 are separated from the second end of the second exhaust pipe 50, and the second exhaust pipe 50 is not returned to the outside the hopper wall 111, and the exhaust emission is not affected by the driver. Therefore, the exhaust emission system solves the problem that the exhaust gas blocks the sight of a driver when the vehicle runs in the prior art.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An exhaust gas emission system comprising an exhaust pipe part for emitting exhaust gas, characterized in that the exhaust pipe part comprises a first exhaust pipe (10) and a second exhaust pipe (30), a first end of the first exhaust pipe (10) having an exhaust gas inlet (11), a first end of the second exhaust pipe (30) having a first discharge opening (31); the exhaust emission system further includes:

the box hopper (110), a box hopper wall (111) of the box hopper (110) is provided with a first cavity (112), and a second discharge port communicated with the first cavity (112) is arranged on the box hopper wall (111);

a third exhaust pipe (50), a first end of the third exhaust pipe (50) being in communication with the first cavity (112);

a switching member (60) having a first communication state in which a second end of the first exhaust pipe (10) is communicated with a second end of the second exhaust pipe (30) and a second end of the first exhaust pipe (10) is disconnected from a second end of the third exhaust pipe (50), the switching member (60) further having a second communication state in which a second end of the first exhaust pipe (10) is communicated with a second end of the third exhaust pipe (50) and a second end of the first exhaust pipe (10) is disconnected from a second end of the second exhaust pipe (30), the switching member (60) switching between the first communication state and the second communication state.

2. The exhaust gas emission system according to claim 1, characterized in that the conversion component (60) comprises:

a transfer box (80), the transfer box (80) having a second cavity (84) and a first communication port (81), a second communication port (82) and a third communication port (83) that are in communication with the second cavity (84), the first communication port (81) being in communication with the second end of the first exhaust pipe (10), the second communication port (82) being in communication with the second end of the second exhaust pipe (30), the third communication port (83) being in communication with the second end of the third exhaust pipe (50);

a change-over switch (61) movably provided in the change-over box (80), the change-over switch (61) having a first position in which the first communication port (81) and the second communication port (82) are communicated and the first communication port (81) and the third communication port (83) are disconnected, the change-over switch (61) further having a second position in which the first communication port (81) and the third communication port (83) are communicated and the first communication port (81) and the second communication port (82) are disconnected; -the change-over switch (61) is switched between the first position and the second position, the change-over member (60) being in the first communication state when the change-over switch (61) is in the first position; when the changeover switch (61) is in the second position, the changeover member (60) is in the second communication state.

3. The exhaust gas emission system according to claim 2, characterized in that when the change-over switch (61) is in the first position, the second chamber (84) is partitioned into a first communication chamber and a second communication chamber, the first communication port (81) and the second communication port (82) each communicate with the first communication chamber, and the third communication port (83) communicates with the second communication chamber; when the change-over switch (61) is in the second position, the second cavity (84) is divided into a third communication cavity and a fourth communication cavity, the first communication port (81) and the third communication port (83) are both communicated with the third communication cavity, and the second communication port (82) is communicated with the fourth communication cavity.

4. The exhaust gas emission system according to claim 2, characterized in that a rotation shaft (63) is provided on the change-over switch (61), the rotation shaft (63) being rotatably connected to the change-over box (80) for rotating the change-over switch (61) between the first position and the second position.

5. The exhaust gas emission system according to claim 4, further comprising a handle (62), wherein an operation end of the handle (62) is located outside the conversion box (80), and a connection end of the handle (62) passes through a wall of the conversion box (80) to be connected with the conversion switch (61) so as to rotate the conversion switch (61) and the rotation shaft (63) by rotating the handle (62).

6. The exhaust gas emission system of any one of claims 1 to 5, further comprising:

the muffler (100), third blast pipe (50) pass through muffler (100) with first cavity (112) are linked together, the first end of muffler (100) with the first end of third blast pipe (50) are linked together, the second end of muffler (100) with first cavity (112) are linked together, so that tail gas passes through muffler (100) amortization.

7. The exhaust gas emission system according to claim 6, wherein the muffler (100) includes a tubular structure (101) and an end plate (102), the end plate (102) closing off a first end of the tubular structure (101), a communication hole being provided in the end plate (102), the first end of the third exhaust pipe (50) being in communication with the communication hole; the second end of the tubular structure (101) is the second end of the muffler (100);

-the diameter of the tubular structure (101) gradually decreases in a direction from the first end to the second end of the tubular structure; the diameter of the first end of the tubular structure (101) is larger than the diameter of the first end of the third exhaust pipe (50), and the diameter of the second end of the tubular structure (101) is larger than the diameter of the first end of the third exhaust pipe (50).

8. The exhaust gas emission system according to any one of claims 1 to 5, characterized in that the second discharge opening is provided at a side of the tank wall (111), the second discharge opening being located at a rear of the tank (110).

9. The exhaust gas emission system of claim 8, further comprising:

a blocking part (90), wherein one end of the blocking part (90) is connected with the tank wall (111) and is positioned above the second discharge port, the other end of the blocking part (90) is connected with the tank wall (111) and is positioned below the second discharge port, and the blocking part (90) is covered on the second discharge port;

a third discharge port (92) is formed between the blocking portion (90) and the tank wall (111), and the third discharge port (92) is located at the side portion of the second discharge port and is communicated with the second discharge port.

10. A vehicle comprising an exhaust gas emission system, characterized in that the exhaust gas emission system is an exhaust gas emission system as claimed in any one of claims 1 to 9.

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