Exhaust brake

Abstract

The utility model discloses an exhaust brake which comprises a brake shell, a valve is arranged in the brake shell, a connecting short shaft and a driving shaft are arranged at the upper end and the lower end of the valve respectively, the connecting short shaft and the driving shaft are both connected with the brake shell in a rotating mode, and a gland for positioning the connecting short shaft and the driving shaft is arranged on the brake shell. A mounting base is fixed to the upper surface of the gland at the upper end through bolts, an air cylinder driving assembly for driving the driving shaft to rotate is arranged on the upper surface of the mounting base, a fixed limiting piece for limiting the right side of the air cylinder driving assembly is arranged on the upper surface of the mounting base, and an adjustable limiting piece for limiting the left side of the air cylinder driving assembly is arranged on the upper surface of the mounting base; an inlet of the brake shell is connected with an L-shaped connector, and the end, away from the end connected with the brake shell, of the L-shaped connector is connected with a detection assembly. The exhaust brake is simple in structure and easy and convenient to operate, installation is more convenient, the exhaust flow can be automatically controlled, and convenience is provided for people.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust brakes, in particular to an exhaust brake. Background Art

[0002] Commercial vehicles with heavy loads include exhaust brakes, which are used to slow down by operating the foot brake as the main braking device when driving down a hill or at high speed. However, the existing exhaust brakes have a complex structure. After the exhaust brake is installed, it needs to be manually adjusted. Once manually adjusted, it cannot be adjusted during operation. For example, in patent publication No. CN105840322A, although it can be manually adjusted, it cannot be automatically adjusted, which is inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an exhaust brake with a simple structure and easy operation, which not only makes installation more convenient, but also can automatically control the size of the exhaust flow rate, providing convenience for people and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust brake, comprising a brake housing, a valve is arranged inside the brake housing, a connecting short shaft and a driving shaft are respectively arranged at the upper and lower ends of the valve, the connecting short shaft and the driving shaft are both rotatably connected to the brake housing, a pressure cover is arranged on the brake housing for positioning the connecting short shaft and the driving shaft, a mounting seat is fixed to the upper surface of the pressure cover at the upper end by bolts, a cylinder driving assembly for driving the driving shaft to rotate is arranged on the upper surface of the mounting seat, the cylinder driving assembly comprises a rotating plate fixed on the driving shaft, and the upper surface of the mounting seat is fixed by a pin shaft. A driving cylinder is connected, and the telescopic end of the driving cylinder is connected to one end of the rotating plate through a pin shaft 2. The rotating plate can be driven to rotate by the extension and retraction of the driving cylinder, and the driving shaft can be driven to rotate by the rotation of the rotating plate. The valve can be driven to rotate by the rotation of the driving shaft, so as to open or close the pipeline. A fixed limit piece for limiting the right side of the cylinder driving assembly is provided on the upper surface of the mounting seat, and an adjustable limit piece for limiting the left side of the cylinder driving assembly is provided on the upper surface of the mounting seat. The inlet of the brake housing is connected to an L-shaped joint, and the end of the L-shaped joint away from the connection with the brake housing is connected to a detection assembly.

[0005] Furthermore, the fixed limit member includes an L-shaped support fixed on the mounting base, and the upper end of the L-shaped support is connected to a positioning bolt by a threaded connection. The positioning bolt can be moved along the L-shaped support by rotating it, so as to adjust the position of one end of the positioning bolt, thereby positioning the closed position of the brake.

[0006] Furthermore, the adjustable limit member includes an L-shaped support seat 2 fixed on the mounting seat, and the upper end of the L-shaped support seat 2 is connected to an electric push rod by a threaded connection. The position of the telescopic end can be adjusted by extending the electric push rod, thereby adjusting the maximum rotation angle of the rotating plate, thereby adjusting the angle of the valve opening.

[0007] Furthermore, the detection component includes a connecting tube shell connected to the L-shaped joint, a detection shaft is provided inside the connecting tube shell, and the outer side of the detection shaft located inside the connecting tube shell is evenly provided with shifting blades. When the gas flows through the connecting tube shell, the shifting blades can be rotated, and the rotation of the shifting blades can drive the detection shaft to rotate. The gas flow rate is judged by detecting the rotation speed of the detection shaft through the outer side speed detector, thereby judging the gas flow in the brake.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: the positioning bolt can be rotated to move along the L-shaped support, so as to adjust the position of one end of the positioning bolt, so as to position the closed position of the brake, the rotating plate can be driven to rotate by driving the cylinder to extend and retract, the driving shaft can be driven to rotate by the rotating plate, and the valve can be driven to rotate by the driving shaft, so as to open or close the pipeline, and the toggle blade can be rotated when the gas flows through the connecting pipe housing, and the detection shaft can be driven to rotate by the toggle blade rotation, and the gas flow rate can be determined by detecting the rotation speed of the detection shaft through the outer speed detector, thereby determining the gas flow in the brake, and the position of the telescopic end can be adjusted by extending the electric push rod, so as to adjust the maximum rotation angle of the rotating plate, thereby adjusting the angle of the valve opening. The exhaust brake has a simple structure and is easy to operate. It not only makes installation more convenient, but also can automatically control the size of the exhaust flow, providing convenience for people. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a left-side structural schematic diagram of the utility model;

[0011] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 4 This is a schematic diagram of the structure of the cylinder drive assembly of the utility model.

[0013] In the figure: 1 brake housing, 2 valve, 3 connecting short shaft, 4 driving shaft, 5 pressure cover, 6 adjustable limiter, 61 L-shaped support 2, 62 electric push rod, 7 cylinder drive assembly, 71 pin shaft 1, 72 drive cylinder, 73 rotating plate, 74 pin shaft 2, 8 fixed limiter, 81 positioning bolt, 82 L-shaped support, 9 detection assembly, 91 toggle blade, 92 detection shaft, 93 connecting pipe housing, 10 L-shaped joint, 11 mounting seat. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-4The utility model provides a technical solution: an exhaust brake, comprising a brake housing 1, a valve 2 is arranged inside the brake housing 1, a connecting short shaft 3 and a driving shaft 4 are respectively arranged at the upper end and the lower end of the valve 2, the connecting short shaft 3 and the driving shaft 4 are both rotatably connected to the brake housing 1, a pressure cover 5 is arranged on the brake housing 1 for positioning the connecting short shaft 3 and the driving shaft 4, a mounting seat 11 is fixed to the upper surface of the upper pressure cover 5 by bolts, a cylinder driving assembly 7 for driving the driving shaft 4 to rotate is arranged on the upper surface of the mounting seat 11, a fixed limiting member 8 for limiting the right side of the cylinder driving assembly 7 is arranged on the upper surface of the mounting seat 11, and a fixing member 8 for limiting the right side of the cylinder driving assembly 7 is arranged on the upper surface of the mounting seat 11. The adjustable limiter 6 on the left side of the component 7, the inlet of the brake housing 1 is connected with an L-shaped joint 10, and the end of the L-shaped joint 10 away from the brake housing 1 is connected with a detection component 9, the cylinder drive component 7 includes a rotating plate 73 fixed on the driving shaft 4, the upper surface of the mounting seat 11 is connected with a driving cylinder 72 through a pin shaft 1 71, and the telescopic end of the driving cylinder 72 is connected to one end of the rotating plate 73 through a pin shaft 2 74. The rotating plate 73 can be driven to rotate by the extension and contraction of the driving cylinder 72, and the driving shaft 4 can be driven to rotate by the rotation of the rotating plate 73. The valve 2 can be driven to rotate by the rotation of the driving shaft 4, so as to open or close the pipeline, and the fixed limit The component 8 includes an L-shaped support 82 fixed on the mounting seat 11, and the upper end of the L-shaped support 82 is connected to a positioning bolt 81 by a threaded connection. The positioning bolt 81 can be rotated to move along the L-shaped support 82, so as to adjust the position of one end of the positioning bolt 81, so as to position the closed position of the brake. The adjustable limit member 6 includes an L-shaped support 2 61 fixed on the mounting seat 11, and the upper end of the L-shaped support 2 61 is connected to an electric push rod 62 by a threaded connection. The position of the telescopic end can be adjusted by extending the electric push rod 62, so as to adjust the maximum angle of rotation of the rotating plate 73, thereby adjusting the angle of opening of the valve 2, and detecting The component 9 includes a connecting pipe shell 93 connected to the L-shaped joint 10. A detection shaft 92 is provided inside the connecting pipe shell 93. The outer side of the detection shaft 92 located inside the connecting pipe shell 93 is evenly provided with a shifting blade 91. When the gas flows through the connecting pipe shell 93, the shifting blade 91 can be rotated. The rotation of the shifting blade 91 can drive the detection shaft 92 to rotate. The flow rate of the gas is determined by detecting the rotation speed of the detection shaft 92 through the outer speed detector to determine the gas flow rate, thereby determining the gas flow in the brake. The exhaust brake has a simple structure and is easy to operate. It not only makes installation more convenient, but also can automatically control the size of the exhaust flow, providing convenience for people.

[0016] During use: by rotating the positioning bolt 81, it can move along the L-shaped support 82, so as to adjust the position of one end of the positioning bolt 81, so as to locate the closed position of the brake, by driving the cylinder 72 to extend and retract, the rotating plate 73 can be driven to rotate, by rotating the rotating plate 73, the driving shaft 4 can be driven to rotate, and by rotating the driving shaft 4, the valve 2 can be driven to rotate, so as to open or close the pipeline, when the gas flows through the connecting pipe housing 93, the toggle blade 91 can be rotated, and by rotating the toggle blade 91, the detection shaft 92 can be driven to rotate, and the flow rate of the gas can be determined by detecting the rotation speed of the detection shaft 92 through the outer speed detector, thereby determining the gas flow in the brake, and the position of the telescopic end can be adjusted by extending the electric push rod 62, thereby adjusting the maximum angle of rotation of the rotating plate 73, thereby adjusting the opening angle of the valve 2, thereby automatically adjusting the exhaust volume.

[0017] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An exhaust brake, comprising a brake housing (1), characterized in that: The brake housing (1) is provided with a valve (2) inside, the upper end of the valve (2) is fixedly connected to the driving shaft (4), the lower end of the valve (2) is fixedly connected to the connecting short shaft (3), the connecting short shaft (3) and the driving shaft (4) are both rotatably connected to the brake housing (1), the brake housing (1) is provided with a pressure cover (5) for positioning the connecting short shaft (3) and the driving shaft (4), the upper surface of the pressure cover (5) at the upper end is fixed with a mounting seat (11) by bolts, the upper surface of the mounting seat (11) is provided with a cylinder drive assembly (7) for driving the driving shaft (4) to rotate, the cylinder drive assembly (7) includes a cylinder drive assembly (7) fixed on the driving shaft (4) The upper surface of the mounting seat (11) is connected to a driving cylinder (72) through a pin shaft (71), and the telescopic end of the driving cylinder (72) is connected to one end of the rotating plate (73) through a pin shaft (74). The upper surface of the mounting seat (11) is provided with a fixed limiter (8) for limiting the right side of the cylinder driving assembly (7), and the upper surface of the mounting seat (11) is provided with an adjustable limiter (6) for limiting the left side of the cylinder driving assembly (7). The inlet of the brake housing (1) is connected to an L-shaped joint (10), and the end of the L-shaped joint (10) away from the end connected to the brake housing (1) is connected to a detection assembly (9).

2. The exhaust brake according to claim 1, characterized in that: The fixed limiting member (8) comprises an L-shaped support (82) fixed on the mounting seat (11), and the upper end of the L-shaped support (82) is connected to a positioning bolt (81) by means of a threaded connection.

3. The exhaust brake according to claim 1, characterized in that: The adjustable limiter (6) comprises a second L-shaped support (61) fixed on the mounting seat (11), and the upper end of the second L-shaped support (61) is connected to an electric push rod (62) by means of a threaded connection.

4. The exhaust brake according to claim 1, characterized in that: The detection assembly (9) comprises a connecting tube housing (93) connected to the L-shaped joint (10), a detection shaft (92) being provided inside the connecting tube housing (93), and shifting blades (91) being evenly provided on the outer side of the detection shaft (92) located inside the connecting tube housing (93).

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