Off-highway dumper exhaust system conversion device

Abstract

The utility model discloses an off-highway dumper exhaust system conversion device which comprises a first straight pipe, the outer wall of one side of the first straight pipe is communicated with a second straight pipe, the first straight pipe and the second straight pipe are connected in a T shape, an air inlet and a second air outlet are formed in the two ends of the first straight pipe respectively, and a first air outlet is formed in the end portion of the end, away from the first straight pipe, of the second straight pipe. A second valve is arranged at the end, close to the second air outlet, in the first straight pipe, and a first valve is arranged at the joint of the first straight pipe and the second straight pipe. The off-highway dumper exhaust system conversion device is easy to manufacture, convenient to install, small in size and light in weight; the circular pipe design avoids vortex generation during exhaust, and exhaust resistance is reduced; and the exhaust channel valve can be completely closed and is provided with a mistake-proof design, so that the situation that the engine cannot exhaust air due to the fact that the two valves are closed is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary equipment for exhaust systems, and relates to a conversion device for the exhaust system of off-road dump trucks. Background Art

[0002] The conversion device for the exhaust system of off-road dump trucks is a device used to change the emission direction of engine exhaust gas. According to needs, the exhaust gas is directed to the muffler or the cargo box for heating. In the working condition where the ambient temperature is too low in cold regions, to solve the problem that the materials in the cargo box freeze and are difficult to dump, the conversion box valve can be adjusted to lead the high-temperature exhaust gas of the engine into the channel at the bottom of the cargo box to heat the cargo box; there are various existing exhaust system conversion boxes in the form of straight pipes with single valves, straight pipes with special-shaped double valves, square single valves, etc., but there are still some problems that have not been solved and affect the use. The conversion box in the form of a straight pipe with a single valve usually has a long-through state for the exhaust channel of the cargo box heating and cannot be closed; the conversion box in the form of a straight pipe with special-shaped double valves has a complex structure, and the valves have no anti-misoperation device, and there is a risk of closing both valves, resulting in the engine being unable to exhaust; the conversion box in the form of a square single valve has a complex structure, a large volume, and a large exhaust resistance. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a conversion device for the exhaust system of off-road dump trucks, which has the characteristics that the exhaust channel valve can be completely closed and has an anti-misoperation design.

[0004] The technical solution adopted by the utility model is that the conversion device for the exhaust system of off-road dump trucks includes a first straight pipe. One outer wall of the first straight pipe is communicated with a second straight pipe. The first straight pipe and the second straight pipe are connected in a "T" shape. An air inlet and a second air outlet are respectively arranged at both ends of the first straight pipe. A first air outlet is arranged at the end of the second straight pipe far away from the first straight pipe. A second valve is arranged at one end of the first straight pipe close to the second air outlet, and a first valve is arranged at the connection part of the first straight pipe and the second straight pipe.

[0005] The characteristics of the utility model also lie in that:

[0006] One end of the second valve is fixedly connected with the second valve handle, and the other end of the second valve handle is provided with a first bolt in a matching manner. The first bolt is respectively arranged in a matching manner with a second threaded pad and a first threaded pad.

[0007] One end of the first valve is fixedly connected with the first valve handle, and the other end of the first valve handle is provided with a second bolt in a matching manner. The second bolt is respectively arranged in a matching manner with a second threaded pad and a first threaded pad.

[0008] A support plate is arranged at the connection part of the first straight pipe and the second straight pipe. The first threaded pad is fixedly connected to the support plate, and the second threaded pad is fixedly connected to the outer wall of the first straight pipe.

[0009] The first valve comprises a No. 1 threaded rod, to which a No. 1 butterfly piece is fixedly connected, and the No. 1 threaded rod passes through a first rotating center hole and is fixedly connected to a first valve handle.

[0010] The second valve comprises a No. 2 threaded rod, on which a No. 2 butterfly piece is fixedly connected, and the No. 2 threaded rod passes through the second rotation center hole and is fixedly connected to the second valve handle.

[0011] The No. 1 butterfly and the No. 2 butterfly are circular discs. The outer side of the No. 1 butterfly is fitted with the inner wall of the second straight tube, and the outer side of the No. 2 butterfly is fitted with the inner wall of the first straight tube. The No. 1 threaded rod passes through the center line of the No. 1 butterfly, and the No. 2 threaded rod passes through the center line of the No. 2 butterfly.

[0012] The first straight pipe is provided with an air inlet and a second flange at one end, the first straight pipe is provided with a second air outlet and a first flange at one end, and the second straight pipe is provided with a first air outlet and a third flange at one end.

[0013] The extension direction of the first valve handle is parallel to the disc surface of the number one butterfly; the extension direction of the second valve handle is parallel to the disc surface of the number two butterfly.

[0014] The No. 2 threaded pad, the No. 1 threaded pad, the first rotation center hole and the second rotation center hole are respectively located on the four corners of the square.

[0015] The beneficial effects of the utility model are as follows: the off-road dump truck exhaust system conversion device is simple to manufacture, easy to install, small in size and light in weight; the round tube design avoids exhaust vortexes and reduces exhaust resistance; the exhaust channel valve can be completely closed and has an error-proof design to avoid the situation where both valves are closed and the engine cannot exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the appearance structure diagram of the off-road dump truck exhaust system conversion device of the utility model;

[0017] Figure 2 This is the internal structure diagram of the exhaust system conversion device of the off-highway dump truck of the utility model;

[0018] Figure 3 This is a valve structure diagram of the exhaust system conversion device of an off-highway dump truck of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the appearance structure of the off-road dump truck exhaust system conversion device after the exhaust direction is changed.

[0020] In the figure: 1. First flange; 2. First straight pipe; 3. Second threaded spacer; 4. First threaded spacer; 5. First bolt; 6. Second bolt; 7. Second valve; 8. First valve; 9. Second valve handle; 10. Support plate; 11. Second straight pipe; 12. First butterfly disc; 13. First valve handle; 14. Second butterfly disc; 15. Second threaded rod; 16. Second flange; 17. Third flange; 18. Air inlet; 19. First air outlet; 20. Second air outlet; 21. First rotation center hole; 22. Second rotation center hole; 23. First threaded rod Detailed implementation mode

[0021] The present utility model will be described in detail below in conjunction with the accompanying drawings and the detailed implementation mode.

[0022] The present utility model provides a conversion device for the exhaust system of a non-road dump truck, as Figure 1 shown, which includes a first straight pipe 2. One outer wall of the first straight pipe 2 is communicated with a second straight pipe 11. The first straight pipe 2 and the second straight pipe 11 are connected in a "T" shape. An air inlet 18 and a second air outlet 20 are respectively arranged at both ends of the first straight pipe 2. A first air outlet 19 is arranged at the end of the second straight pipe 11 far from the first straight pipe 2. A second valve 7 is arranged at one end of the first straight pipe 2 close to the second air outlet 20. A first valve 8 is arranged at the connection part of the first straight pipe 2 and the second straight pipe 11; One end of the second valve handle 9 is fixedly connected to the second valve 7, and a first bolt 5 is arranged at the other end of the second valve handle 9 in a matching manner. The first bolt 5 is respectively arranged in a matching manner with the second threaded spacer 3 and the first threaded spacer 4; One end of the first valve handle 13 is fixedly connected to the first valve 8, and a second bolt 6 is arranged at the other end of the first valve handle 13 in a matching manner. The second bolt 6 is respectively arranged in a matching manner with the second threaded spacer 3 and the first threaded spacer 4;

[0023] A support plate 10 is arranged at the connection part of the first straight pipe 2 and the second straight pipe 11. The first threaded spacer 4 is fixedly connected to the support plate 10, and the second threaded spacer 3 is fixedly connected to the outer wall of the first straight pipe 2; As Figure 2 shown, the first valve 8 includes a first threaded rod 23. A first butterfly disc 12 is fixedly connected to the first threaded rod 23. The first threaded rod 23 passes through the first rotation center hole 21 and is fixedly connected to the first valve handle 13;

[0024] As Figure 3 shown, the second valve 7 includes a second threaded rod 15. A second butterfly disc 14 is fixedly connected to the second threaded rod 15. The second threaded rod 15 passes through the second rotation center hole 22 and is fixedly connected to the second valve handle 7;

[0025] The structure of the first disc 12 and the second disc 14 is circular. The outer side of the first disc 12 is attached to the inner wall of the second straight pipe 11, and the outer side of the second disc 14 is attached to the inner wall of the first straight pipe 2. The first threaded rod 23 passes through the center line of the first disc 12, and the second threaded rod 15 passes through the center line of the second disc 14;

[0026] One end of the first straight pipe 2 where the air inlet 18 is provided is provided with a second flange 16, one end of the first straight pipe 2 where the second air outlet 20 is provided is provided with a first flange 1, and one end of the second straight pipe 11 where the first air outlet 19 is provided is provided with a third flange 17; The extending direction of the first valve handle 13 is parallel to the disc surface of the first disc 12; The extending direction of the second valve handle 9 is parallel to the disc surface of the second disc 14; The second threaded spacer 3, the first threaded spacer 4, the first rotation center hole 21, and the second rotation center hole 22 are respectively located at the four corners of a square.

[0027] When the first air outlet 19 is closed and the second air outlet 20 is opened, the position of the handle is as Figure 4 shown.

[0028] In the utility model, the first straight pipe 2 and the second straight pipe 11 are welded and connected to form a tee pipe. Two valves are respectively located at the two air outlets to control the opening and closing of the air outlets. There are only two threaded spacers for fixing the valve handles. The two valve handles share two threaded spacers. When the exhaust direction needs to be changed, remove the bolts on the valve handles, rotate the valve handles, and after rotating the two handles to the fixed positions, tighten the bolts again to ensure that the exhaust ports are always one open and one closed; The direction of the valve handle is consistent with the direction of the valve disc, and it can be judged whether the exhaust passage is open from the direction of the handle; Different sizes are selected for the diameters of the straight pipes of the conversion box, and the other parts are increased or decreased according to the pipe diameter, which can meet the exhaust pipe diameter requirements of different engines.

[0029] Embodiment 1

[0030] This embodiment provides a conversion device for the exhaust system of a non-road dump truck, as Figure 1 shown, including a first straight pipe 2. The outer wall on one side of the first straight pipe 2 is communicated with a second straight pipe 11. The first straight pipe 2 and the second straight pipe 11 are connected in a "T" shape. The two ends of the first straight pipe 2 are respectively provided with an air inlet 18 and a second air outlet 20. One end of the second straight pipe 11 far from the first straight pipe 2 is provided with a first air outlet 19. A second valve 7 is arranged at one end of the first straight pipe 2 close to the second air outlet 20, and a first valve 8 is arranged at the connection between the first straight pipe 2 and the second straight pipe 11.

[0031] Embodiment 2

[0032] This embodiment provides a conversion device for the exhaust system of a non-road dump truck, as Figure 1As shown in the figure, it includes a first straight pipe 2. A second straight pipe 11 is connected to the outer wall on one side of the first straight pipe 2. The first straight pipe 2 and the second straight pipe 11 are connected in a "T" shape. An air inlet 18 and a second air outlet 20 are respectively arranged at both ends of the first straight pipe 2. A first air outlet 19 is arranged at the end of the second straight pipe 11 far from the first straight pipe 2. A second valve 7 is arranged at one end of the first straight pipe 2 close to the second air outlet 20. A first valve 8 is arranged at the connection of the first straight pipe 2 and the second straight pipe 11. One end of the second valve 7 is fixedly connected to a second valve handle 9, and a first bolt 5 is arranged at the other end of the second valve handle 9 in a matching manner. The first bolt 5 is respectively arranged in a matching manner with a second threaded cushion block 3 and a first threaded cushion block 4. The first valve 8 is fixedly connected to a first valve handle 13, and a second bolt 6 is arranged at the other end of the first valve handle 13 in a matching manner. The second bolt 6 is respectively arranged in a matching manner with the second threaded cushion block 3 and the first threaded cushion block 4. A support plate 10 is arranged at the connection of the first straight pipe 2 and the second straight pipe 11. The first threaded cushion block 4 is fixedly connected to the support plate 10, and the second threaded cushion block 3 is fixedly connected to the outer wall of the first straight pipe 2.

[0033] Embodiment 3

[0034] This embodiment provides a conversion device for the exhaust system of a non-road dump truck. As Figure 1 shown in the figure, it includes a first straight pipe 2. A second straight pipe 11 is connected to the outer wall on one side of the first straight pipe 2. The first straight pipe 2 and the second straight pipe 11 are connected in a "T" shape. An air inlet 18 and a second air outlet 20 are respectively arranged at both ends of the first straight pipe 2. A first air outlet 19 is arranged at the end of the second straight pipe 11 far from the first straight pipe 2. A second valve 7 is arranged at one end of the first straight pipe 2 close to the second air outlet 20. A first valve 8 is arranged at the connection of the first straight pipe 2 and the second straight pipe 11. One end of the second valve 7 is fixedly connected to a second valve handle 9, and a first bolt 5 is arranged at the other end of the second valve handle 9 in a matching manner. The first bolt 5 is respectively arranged in a matching manner with a second threaded cushion block 3 and a first threaded cushion block 4.

[0035] The first valve 8 is fixedly connected to a first valve handle 13, and a second bolt 6 is arranged at the other end of the first valve handle 13 in a matching manner. The second bolt 6 is respectively arranged in a matching manner with the second threaded cushion block 3 and the first threaded cushion block 4. A support plate 10 is arranged at the connection of the first straight pipe 2 and the second straight pipe 11. The first threaded cushion block 4 is fixedly connected to the support plate 10, and the second threaded cushion block 3 is fixedly connected to the outer wall of the first straight pipe 2. As Figure 2 shown in the figure, the first valve 8 includes a first threaded rod 23. A first butterfly plate 12 is fixedly connected to the first threaded rod 23. The first threaded rod 23 passes through a first rotation center hole 21 and is fixedly connected to the first valve handle 13. As Figure 3 shown in the figure, the second valve 7 includes a second threaded rod 15. A second butterfly plate 14 is fixedly connected to the second threaded rod 15. The second threaded rod 15 passes through a second rotation center hole 22 and is fixedly connected to the second valve handle 7.

[0036] Example 4

[0037] This embodiment provides a conversion device for the exhaust system of a non-road dump truck, as Figure 1 shown, which includes a first straight pipe 2. One outer wall of the first straight pipe 2 is communicated with a second straight pipe 11. The first straight pipe 2 and the second straight pipe 11 are connected in a "T" shape. An air inlet 18 and a second air outlet 20 are respectively arranged at both ends of the first straight pipe 2. A first air outlet 19 is arranged at the end of the second straight pipe 11 far from the first straight pipe 2. A second valve 7 is arranged at one end of the first straight pipe 2 close to the second air outlet 20. A first valve 8 is arranged at the connection of the first straight pipe 2 and the second straight pipe 11; One end of the second valve 7 is fixedly connected to one end of a second valve handle 9. The other end of the second valve handle 9 is cooperatively provided with a first bolt 5. The first bolt 5 is respectively cooperatively provided with a second threaded pad 3 and a first threaded pad 4; One end of the first valve 8 is fixedly connected to a first valve handle 13. The other end of the first valve handle 13 is cooperatively provided with a second bolt 6. The second bolt 6 is respectively cooperatively provided with a second threaded pad 3 and a first threaded pad 4;

[0038] A support plate 10 is arranged at the connection of the first straight pipe 2 and the second straight pipe 11. The first threaded pad 4 is fixedly connected to the support plate 10. The second threaded pad 3 is fixedly connected to the outer wall of the first straight pipe 2; As Figure 2 shown, the first valve 8 includes a first threaded rod 23. A first butterfly plate 12 is fixedly connected to the first threaded rod 23. The first threaded rod 23 passes through a first rotation center hole 21 and is fixedly connected to the first valve handle 13; As Figure 3 shown, the second valve 7 includes a second threaded rod 15. A second butterfly plate 14 is fixedly connected to the second threaded rod 15. The second threaded rod 15 passes through a second rotation center hole 22 and is fixedly connected to the second valve handle 7; The structures of the first butterfly plate 12 and the second butterfly plate 14 are circular plates. The outer side of the first butterfly plate 12 is attached to the inner wall of the second straight pipe 11. The outer side of the second butterfly plate 14 is attached to the inner wall of the first straight pipe 2. The first threaded rod 23 passes through the midline of the first butterfly plate 12. The second threaded rod 15 passes through the midline of the second butterfly plate 14; A second flange 16 is arranged at the end of the first straight pipe 2 where the air inlet 18 is arranged. A first flange 1 is arranged at the end of the first straight pipe 2 where the second air outlet 20 is arranged. A third flange 17 is arranged at the end of the second straight pipe 11 where the first air outlet 19 is arranged; The extending direction of the first valve handle 13 is parallel to the disc surface of the first butterfly plate 12; The extending direction of the second valve handle 9 is parallel to the disc surface of the second butterfly plate 14; The second threaded pad 3, the first threaded pad 4, the first rotation center hole 21, and the second rotation center hole 22 are respectively located at the four corners of a square.

Claims

1. Off-road dump truck exhaust system conversion device, characterized in that: The invention comprises a first straight pipe (2), wherein the outer wall of one side of the first straight pipe (2) is connected to a second straight pipe (11), the first straight pipe (2) and the second straight pipe (11) are connected in a "T" shape, an air inlet (18) and a second air outlet (20) are respectively arranged at two ends of the first straight pipe (2), a first air outlet (19) is arranged at an end of the second straight pipe (11) away from the first straight pipe (2), a second valve (7) is arranged at one end of the first straight pipe (2) close to the second air outlet (20), and a first valve (8) is arranged at the connection between the first straight pipe (2) and the second straight pipe (11).

2. The off-road dump truck exhaust system conversion device according to claim 1, characterized in that: The second valve (7) is fixedly connected to one end of a second valve handle (9), and the other end of the second valve handle (9) is provided with a No. 1 bolt (5), and the No. 1 bolt (5) is provided in cooperation with a No. 2 threaded gasket (3) and a No. 1 threaded gasket (4), respectively.

3. The off-road dump truck exhaust system conversion device according to claim 2, characterized in that: The first valve (8) is fixedly connected to a first valve handle (13), and the other end of the first valve handle (13) is provided with a No. 2 bolt (6), and the No. 2 bolt (6) is provided in cooperation with a No. 2 threaded gasket (3) and a No. 1 threaded gasket (4), respectively.

4. The off-road dump truck exhaust system conversion device according to claim 3, characterized in that: A support plate (10) is provided at the connection between the first straight tube (2) and the second straight tube (11), the first threaded gasket (4) is fixedly connected to the support plate (10), and the second threaded gasket (3) is fixedly connected to the outer wall of the first straight tube (2).

5. The off-road dump truck exhaust system conversion device according to claim 4, characterized in that: The first valve (8) comprises a No. 1 threaded rod (23), to which a No. 1 butterfly plate (12) is fixedly connected. The No. 1 threaded rod (23) passes through a first rotation center hole (21) and is fixedly connected to a first valve handle (13).

6. The off-road dump truck exhaust system conversion device according to claim 5, characterized in that: The second valve (7) comprises a second threaded rod (15), a second butterfly plate (14) is fixedly connected to the second threaded rod (15), and the second threaded rod (15) passes through the second rotation center hole (22) and is fixedly connected to the second valve handle (9).

7. The off-road dump truck exhaust system conversion device according to claim 6, characterized in that: The No. 1 butterfly plate (12) and the No. 2 butterfly plate (14) are circular plates. The outer side of the No. 1 butterfly plate (12) is arranged in close contact with the inner wall of the second straight tube (11), and the outer side of the No. 2 butterfly plate (14) is arranged in close contact with the inner wall of the first straight tube (2). The No. 1 threaded rod (23) passes through the center line of the No. 1 butterfly plate (12), and the No. 2 threaded rod (15) passes through the center line of the No. 2 butterfly plate (14).

8. The off-road dump truck exhaust system conversion device according to claim 7, characterized in that: The first straight pipe (2) is provided with an air inlet (18) and a second flange (16) at one end thereof, the first straight pipe (2) is provided with a second air outlet (20) and a first flange (1) at one end thereof, and the second straight pipe (11) is provided with a first air outlet (19) and a third flange (17) at one end thereof.

9. The off-road dump truck exhaust system conversion device according to claim 8, characterized in that: The first valve handle (13) extends in a direction parallel to the disc surface of the number one butterfly (12); the second valve handle (9) extends in a direction parallel to the disc surface of the number two butterfly (14).

10. The off-road dump truck exhaust system conversion device according to claim 9, characterized in that: The No. 2 threaded pad (3), the No. 1 threaded pad (4), the first rotation center hole (21), and the second rotation center hole (22) are respectively located at the four corners of the square.

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