Pressure feedback type constant pressure exhaust brake valve

Abstract

The utility model discloses a pressure feedback type constant pressure exhaust brake valve which comprises a spiral cooling pipe, the output end of the spiral cooling pipe is fixedly communicated with a first extension pipe, the output end of the first extension pipe is fixedly communicated with a first communicating pipe, and the output end of the first communicating pipe is fixedly communicated with an air outlet hopper. The input end of the spiral cooling pipe fixedly communicates with a second extending pipe, the input end of the second extending pipe fixedly communicates with a second communicating pipe, and the input end of the second communicating pipe fixedly communicates with a clamping base. The spiral cooling pipe, the second extending pipe, the second communicating pipe, the clamping base, the air inlet hose and the fixing base are matched, heat near the valve body is taken away through cold air, heat exchange between hot air near the valve body and the cold air is accelerated through matching of the spiral cooling pipe, the first extending pipe, the first communicating pipe and the air outlet hopper, and the heat exchange efficiency is improved. The effects of improving the working temperature of the exhaust brake valve and prolonging the service life of the exhaust brake valve are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile auxiliary brake devices, in particular to a pressure feedback type constant pressure exhaust brake valve. Background Art

[0002] The exhaust brake valve is an auxiliary brake and a necessary supplement to the vehicle's service brakes. The exhaust brake valve uses the engine as an air compressor to generate braking torque, thereby decelerating the vehicle. It is generally installed in the exhaust pipe. When deceleration is required, the valve is closed to block the exhaust channel to achieve a braking effect.

[0003] The utility model with the existing authorization announcement number CN217129647U discloses an exhaust brake valve, including a valve body, a valve plate is rotatably arranged in the valve body, and limiting bosses are respectively provided on the front and rear inner walls of the valve body, and the front and rear limiting bosses are respectively located on both sides of the valve plate, and one end face of the limiting boss is an arc-shaped inclined surface; when the valve plate is in a closed state, the two ends of the valve plate are tightly fitted with the arc-shaped inclined surfaces of the front and rear limiting bosses respectively.

[0004] Although the above-mentioned technical scheme can be closed quickly and has good closing sealing, and there will be no movement jamming phenomenon during operation, when the pressure feedback constant pressure exhaust brake valve of the above-mentioned technical scheme is in use, due to the particularity of the working conditions of the exhaust brake valve, when it is working, the surface temperature of the valve body can be as high as more than 550 degrees Celsius, which will cause the exhaust brake valve to continue to work at high temperature, causing deformation and even rupture, thereby reducing the service life of the exhaust brake valve. Therefore, technical personnel in this field provide a pressure feedback constant pressure exhaust brake valve to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] In view of this, it is necessary to provide a pressure feedback constant pressure exhaust brake valve to solve the problem that the working environment of the exhaust brake valve cannot be cooled down.

[0006] According to one aspect of the utility model, a pressure feedback constant pressure exhaust brake valve is provided, including a spiral cooling tube, the output end of the spiral cooling tube is fixedly connected to a first extension tube, the output end of the first extension tube is fixedly connected to a first connecting tube, the output end of the first connecting tube is fixedly connected to an air outlet scoop, the input end of the spiral cooling tube is fixedly connected to a second extension tube, the input end of the second extension tube is fixedly connected to a second connecting tube, the input end of the second connecting tube is fixedly connected to a clamping seat, an intake hose is provided on the front side of the clamping seat, the output end of the intake hose is fixedly connected to a fixing seat, and the back side of the fixing seat is in contact with the front side of the clamping seat.

[0007] According to some embodiments, a fixing plate is fixedly connected to the outer surface of the spiral cooling tube, a right side surface of the clamping seat is fixedly connected to the left side surface of the fixing plate, and the right side surface of the fixing seat is in contact with the left side surface of the fixing plate.

[0008] According to some embodiments, the left side of the fixing plate is fixedly connected to an exhaust brake valve body, the outer surface of the exhaust brake valve body contacts the outer surface of the spiral cooling pipe, and the right side of the fixing plate is fixedly connected to a connecting tube.

[0009] According to some embodiments, the left side surface of the clamping seat and the left side surface of the fixing seat are respectively fixedly connected with a first connecting block and a second connecting block, and the front side of the first connecting block contacts the back side of the second connecting block.

[0010] According to some embodiments, the interior of the first connection block and the interior of the second connection block are threadedly connected with a fixing bolt, and one end of the fixing bolt close to the first connection block sequentially penetrates the second connection block and the first connection block and extends to the back side of the first connection block.

[0011] According to some embodiments, a fixing nut is threadedly connected to an outer surface of the fixing bolt, and a front surface of the fixing nut is in contact with a back surface of the first connecting block.

[0012] According to some embodiments, a rotating bracket is commonly clamped inside the clamping seat and inside the fixing seat, a rotating motor is fixedly connected to the inner wall of the rotating bracket, and a rotating fan blade is fixedly connected to the output end of the rotating motor.

[0013] According to some embodiments, a fixing ring is fixedly connected to the outer surface of the rotating motor, and a front surface of the fixing ring is fixedly connected to the inner wall of the rotating bracket.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] By providing a spiral cooling tube, a second extension tube, a second connecting tube, a clamping seat, an air intake hose and a fixing seat, the air intake hose is manually connected to the air outlet duct of the vehicle's air-conditioning system, and a fan is fixed between the clamping seat and the fixing seat. The fan can be used to blow the cold air in the intake hose to accelerate the flow of the cold air, so that the cold air is passed to the inside of the spiral cooling tube through the second extension tube and the second connecting tube. Since the spiral cooling tube is arranged on the outside of the exhaust brake valve body, the cold air in the spiral cooling tube can be used to take away the heat near the exhaust brake valve body, thereby reducing the temperature near the exhaust brake valve body. Then, by the cooperation of the spiral cooling tube, the first extension tube, the first connecting tube and the air outlet scoop, the air that has absorbed the heat can be transported to the air outlet scoop through the first extension tube and the first connecting tube to accelerate the air flow near the exhaust brake valve body, thereby accelerating the heat exchange between the hot air and the cold air near the exhaust brake valve body, thereby improving the working temperature of the exhaust brake valve and extending the service life of the exhaust brake valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an exhaust brake valve body of a pressure feedback constant pressure exhaust brake valve provided by the utility model;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a spiral cooling pipe of a pressure feedback constant pressure exhaust brake valve provided by the utility model;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of a fixing seat of a pressure feedback constant-pressure exhaust brake valve provided by the utility model;

[0020] Figure 4 The utility model provides a rear view of a rotating bracket of a pressure feedback constant pressure exhaust brake valve.

[0021] In the figure: 1. fixing plate; 2. exhaust brake valve body; 3. spiral cooling pipe; 4. first extension pipe; 5. first connecting pipe; 6. connecting tube; 7. air outlet hopper; 8. second extension pipe; 9. second connecting pipe; 10. air intake hose; 11. snap-fit ​​seat; 12. first connecting block; 13. fixing seat; 14. rotating bracket; 15. second connecting block; 16. fixing bolt; 17. fixing nut; 18. rotating motor; 19. rotating fan blades; 20. fixing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] See also Figures 1 to 4 The utility model provides a pressure feedback constant pressure exhaust brake valve, including a spiral cooling tube 3, the output end of the spiral cooling tube 3 is fixedly connected with a first extension tube 4, the output end of the first extension tube 4 is fixedly connected with a first connecting tube 5, the output end of the first connecting tube 5 is fixedly connected with an air outlet 7, the input end of the spiral cooling tube 3 is fixedly connected with a second extension tube 8, the input end of the second extension tube 8 is fixedly connected with a second connecting tube 9, the input end of the second connecting tube 9 is fixedly connected with a clamping seat 11, an intake hose 10 is arranged on the front of the clamping seat 11, the output end of the intake hose 10 is fixedly connected with a fixing seat 13, and the back side of the fixing seat 13 is in contact with the front side of the clamping seat 11.

[0024] By utilizing the spiral cooling tube 3 sleeved outside the exhaust brake valve, the air intake hose 10 indirectly connected to the input end of the spiral cooling tube 3 is connected to the air outlet of the automobile air conditioner, and a fan is installed in the clamping seat 11 and the fixing seat 13 at the input end of the spiral cooling tube 3 to accelerate the flow of cold air in the spiral cooling tube 3, so that the heat of the outer surface of the exhaust brake valve can be absorbed by the spiral cooling tube 3 with low temperature to reduce the temperature outside the exhaust brake valve, and the air outlet 7 indirectly connected to the output end of the spiral cooling tube 3 is used to blow air toward the outer surface of the exhaust brake valve to accelerate the air flow on the outer surface of the exhaust brake valve, which can accelerate the heat exchange between the heat on the outer surface of the exhaust brake valve and the cold air in the air, thereby reducing the working environment temperature of the exhaust brake valve, improving the working environment of the exhaust brake valve, and further extending the service life of the exhaust brake valve.

[0025] Furthermore, the outer surface of the spiral cooling tube 3 is fixedly connected to the fixing plate 1, the right side surface of the clamping seat 11 is fixedly connected to the left side surface of the fixing plate 1, and the right side surface of the fixing seat 13 is in contact with the left side surface of the fixing plate 1. By utilizing the fixing plate 1, the exhaust brake valve can be firmly fixed on its surface, thereby facilitating the installation of the exhaust brake valve.

[0026] Furthermore, the left side of the fixed plate 1 is fixedly connected to the exhaust brake valve body 2, the outer surface of the exhaust brake valve body 2 is in contact with the outer surface of the spiral cooling tube 3, and the right side of the fixed plate 1 is fixedly connected to the connecting tube 6. The fixed plate 1, the exhaust brake valve body 2 and the connecting tube 6 form the pressure feedback constant pressure exhaust brake valve assembly to facilitate the use of the pressure feedback constant pressure exhaust brake valve to assist vehicle braking.

[0027] Furthermore, the left side surface of the clamping seat 11 and the left side surface of the fixing seat 13 are respectively fixedly connected with the first connecting block 12 and the second connecting block 15, and the front side of the first connecting block 12 is in contact with the back side of the second connecting block 15. The first connecting block 12 and the second connecting block 15 are fixed by the left side surface of the clamping seat 11 and the left side surface of the fixing seat 13, and the first connecting block 12 and the second connecting block 15 can be connected by using the fixing structure, thereby connecting the clamping seat 11 and the fixing seat 13.

[0028] Furthermore, the interior of the first connecting block 12 and the interior of the second connecting block 15 are commonly threadedly connected with a fixing bolt 16, and the end of the fixing bolt 16 close to the first connecting block 12 passes through the second connecting block 15 and the first connecting block 12 in sequence and extends to the back side of the first connecting block 12. By passing through the second connecting block 15 and the first connecting block 12, the connection between the second connecting block 15 and the first connecting block 12 can be pre-fixed.

[0029] Furthermore, a fixing nut 17 is threadedly connected to the outer surface of the fixing bolt 16, and the front side of the fixing nut 17 contacts the back side of the first connecting block 12. The fixing nut 17 connected to the outer thread of the fixing bolt 16 is then used to twist the fixing nut 17 so that the fixing bolt 16 is firmly threadedly connected to the inside of the second connecting block 15 and the first connecting block 12.

[0030] Furthermore, a rotating bracket 14 is commonly clamped inside the clamping seat 11 and the fixing seat 13, and a rotating motor 18 is fixedly connected to the inner wall of the rotating bracket 14, and a rotating fan blade 19 is fixedly connected to the output end of the rotating motor 18. The rotating bracket 14 arranged between the clamping seat 11 and the fixing seat 13 is used to fix the rotating motor 18 and the rotating fan blade 19 to the inner wall of the rotating bracket 14, so that the fan composed of the rotating bracket 14, the rotating motor 18 and the rotating fan blade 19 can be installed between the clamping seat 11 and the fixing seat 13.

[0031] Furthermore, a fixing ring 20 is fixedly connected to the outer surface of the rotating motor 18, and the front side of the fixing ring 20 is fixedly connected to the inner wall of the rotating bracket 14. The fixing ring 20 is fixed at the connection between the rotating motor 18 and the rotating bracket 14, so that the connection between the rotating motor 18 and the rotating bracket 14 can be made more stable.

[0032] Working principle: When in use, when it is necessary to use the cooling structure to cool down the working pressure feedback constant pressure exhaust brake valve, first manually fix the exhaust brake valve body 2 and the connecting tube 6 on both sides of the fixed plate 1 to form a pressure feedback constant pressure exhaust brake valve assembly. When the exhaust brake valve is working, due to the particularity of the exhaust brake valve being installed in the exhaust pipe, the surface temperature of the valve body can be as high as more than 550 degrees Celsius when it is working. The air intake hose 10 is manually connected to the air outlet of the vehicle's air-conditioning system, and the fan composed of the rotating bracket 14, the rotating motor 18 and the rotating fan blades 19 are manually installed to the inside of the fixed seat 13, and the fixed seat 13 is in contact with the clamping seat 11, and the fan is clamped into the clamping seat 11. The fixing bolt 16 is manually used to pass through the second connecting block 15 and the first connecting block 12, and the fixing nut 17 connected by the external thread of the fixing bolt 16 is used. , so that the clamping seat 11 and the fixing seat 13 can be connected together, so that the fan can be used to accelerate the air in the intake hose 10, the clamping seat 11 and the fixing seat 13, and then the cooling air can be transported to the inside of the spiral cooling pipe 3 through the second extension pipe 8 and the second connecting pipe 9. Since the spiral cooling pipe 3 is spirally wound on the outside of the exhaust brake valve body 2, the contact area between the spiral cooling pipe 3 and the air near the exhaust brake valve body 2 can be increased, so that the cooling air in the spiral cooling pipe 3 can absorb the heat in the environment near the exhaust brake valve body 2, and then the first extension pipe 4 and the first connecting pipe 5 are used to make the air after absorbing the heat blow to the outer surface of the exhaust brake valve body 2 through the air outlet 7, so as to accelerate the flow of air on the outer surface of the exhaust brake valve body 2, thereby accelerating the heat exchange between the air on the outer surface of the exhaust brake valve body 2 and the cold air, thereby improving the working environment of the exhaust brake valve and increasing the service life of the exhaust brake valve.

[0033] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

Claims

1. A pressure feedback constant pressure exhaust brake valve, characterized in that: The invention comprises a spiral cooling tube (3), wherein the output end of the spiral cooling tube (3) is fixedly connected to a first extension tube (4), the output end of the first extension tube (4) is fixedly connected to a first connecting tube (5), the output end of the first connecting tube (5) is fixedly connected to an air outlet hopper (7), the input end of the spiral cooling tube (3) is fixedly connected to a second extension tube (8), the input end of the second extension tube (8) is fixedly connected to a second connecting tube (9), the input end of the second connecting tube (9) is fixedly connected to a clamping seat (11), an air intake hose (10) is arranged on the front side of the clamping seat (11), the output end of the air intake hose (10) is fixedly connected to a fixing seat (13), and the back side of the fixing seat (13) is in contact with the front side of the clamping seat (11).

2. A pressure feedback constant pressure exhaust brake valve according to claim 1, characterized in that: The outer surface of the spiral cooling tube (3) is fixedly connected to a fixing plate (1), the right side surface of the clamping seat (11) is fixedly connected to the left side surface of the fixing plate (1), and the right side surface of the fixing seat (13) is in contact with the left side surface of the fixing plate (1).

3. A pressure feedback constant pressure exhaust brake valve according to claim 2, characterized in that: The left side of the fixed plate (1) is fixedly connected to an exhaust brake valve body (2), the outer surface of the exhaust brake valve body (2) is in contact with the outer surface of the spiral cooling pipe (3), and the right side of the fixed plate (1) is fixedly connected to a connecting tube (6).

4. The pressure feedback constant pressure exhaust brake valve according to claim 1, characterized in that: The left side surface of the clamping seat (11) and the left side surface of the fixing seat (13) are respectively fixedly connected with a first connecting block (12) and a second connecting block (15), and the front surface of the first connecting block (12) is in contact with the back surface of the second connecting block (15).

5. A pressure feedback constant pressure exhaust brake valve according to claim 4, characterized in that: The interior of the first connection block (12) and the interior of the second connection block (15) are threadedly connected with a fixing bolt (16); one end of the fixing bolt (16) close to the first connection block (12) passes through the second connection block (15) and the first connection block (12) in sequence and extends to the back side of the first connection block (12).

6. A pressure feedback constant pressure exhaust brake valve according to claim 5, characterized in that: The outer surface of the fixing bolt (16) is threadedly connected with a fixing nut (17), and the front surface of the fixing nut (17) is in contact with the back surface of the first connecting block (12).

7. The pressure feedback constant pressure exhaust brake valve according to claim 1, characterized in that: A rotating bracket (14) is commonly clamped inside the clamping seat (11) and inside the fixing seat (13); a rotating motor (18) is fixedly connected to the inner wall of the rotating bracket (14); and a rotating fan blade (19) is fixedly connected to the output end of the rotating motor (18).

8. The pressure feedback constant pressure exhaust brake valve according to claim 7, characterized in that: A fixing ring (20) is fixedly connected to the outer surface of the rotating motor (18), and the front surface of the fixing ring (20) is fixedly connected to the inner wall of the rotating bracket (14).

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