Exhaust dustproof nozzle of F8 distribution brake valve

Abstract

The exhaust dust-proof nozzle of the F8 distribution brake valve comprises a shell and a valve element, the section of the shell is in an L shape, the shell comprises a mounting opening and an exhaust bent opening, and the valve element is located in the shell; the exhaust dust-proof nozzle of the F8 distribution brake valve has the advantages of being good in dust-proof effect, easy to clean and maintain, convenient to install and the like, and provides powerful guarantee for safe operation of a train in severe environments such as sand and dust.

Description

Technical Field

[0001] The utility model relates to a distribution valve, in particular to an exhaust dust-proof nozzle of an F8 distribution brake valve. Background Art

[0002] In the field of train operation, the F8 distribution brake valve is the core component of the train air brake system, and its performance stability and reliability are crucial to the safe operation of the train. However, in harsh environments such as sand and dust, the F8 distribution brake valve is easily affected by sand and dust, resulting in air leakage and major failures. Therefore, an exhaust dust nozzle is required. The traditional F8 distribution brake valve exhaust nozzle design has obvious defects. Since the exhaust nozzle adopts a straight-discharge design, a large amount of sand and dust can easily enter the valve body through the exhaust port, which can easily cause the distribution brake valve to be loose, thereby causing air leakage or self-deceleration failure. This not only affects the normal operation of the brake system, but also may pose a potential threat to the safe operation of the train.

[0003] In order to solve the above problems, it is necessary to improve the existing F8 distribution brake valve exhaust nozzle to improve its dustproof performance and ensure that the train can run stably and reliably even in harsh environments such as sand and dust. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a distribution valve with dust-proof and exhaust effect.

[0005] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0006] An exhaust dustproof nozzle of an F8 distribution brake valve includes a shell and a valve core. The shell has an L-shaped cross-section and includes a mounting port and an exhaust bend. The valve core is located inside the shell. A valve face is provided at the front end of the valve core, and a mounting hole is provided in the middle of the valve face.

[0007] An exhaust port is arranged on the valve surface and is arranged around the mounting hole.

[0008] A spiral body is arranged on the left side of the valve core, and the number of turns of the spiral body is 1.5-2 turns.

[0009] The valve surface is adapted to the size of the installation opening.

[0010] The upper and lower heights of the spiral body are the same as the diameter of the valve surface.

[0011] The right end of the valve core and the right end of the shell are both provided with bolt holes, and the valve core and the shell are fixed together through the bolt holes and hexagonal bolts.

[0012] The shell is made of stainless steel.

[0013] The valve core is made of brass.

[0014] Beneficial effects of the utility model: the utility model provides an F8 distribution brake valve exhaust dustproof nozzle with excellent dustproof effect, and through a unique design, effectively solves the problem of poor dustproof performance of traditional exhaust nozzles.

[0015] The exhaust dust-proof nozzle of the utility model adopts an L-shaped shell design and a spiral structure, which can significantly reduce the possibility of sand and dust entering the valve body. When sand and dust enter through the exhaust elbow, the blocking effect of the spiral makes the sand and dust settle in the shell, thereby protecting the distribution brake valve from contamination.

[0016] The detachable connection design between the valve core and the housing makes the exhaust dust nozzle easy to clean and maintain. When cleaning is needed, just remove the bolts and take out the valve core for cleaning, which is convenient and fast, and improves the use efficiency.

[0017] In summary, the F8 distribution brake valve exhaust dustproof nozzle of the utility model has the advantages of good dustproof effect, easy cleaning and maintenance, and convenient installation, which provides a strong guarantee for the safe operation of trains in harsh environments such as sand and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0021] An exhaust dustproof nozzle of an F8 distribution brake valve includes a shell 1 and a valve core 2. The shell 1 has an L-shaped cross-section and includes a mounting port 8 and an exhaust bend 3. The valve core 2 is located in the shell 1. A valve face 5 is provided at the front end of the valve core 2, and a mounting hole 6 is provided in the middle of the valve face 5.

[0022] An exhaust port 9 is provided on the valve face 5 , and the exhaust port 9 is arranged around the mounting hole 6 .

[0023] A spiral body 7 is arranged on the left side of the valve core 2, and the number of turns of the spiral body 7 is 1.5-2 turns.

[0024] The valve face 5 is adapted to the size of the installation opening 2 .

[0025] The upper and lower heights of the spiral body 7 are the same as the diameter of the valve face 5 .

[0026] The right end of the valve core 2 and the right end of the housing 1 are both provided with bolt holes, and the valve core 2 and the housing 1 are fixed together through the bolt holes and the hexagonal bolts 4 .

[0027] The housing 1 is made of stainless steel.

[0028] The valve core 2 is made of brass.

[0029] The embodiment of the utility model: the exhaust dust nozzle of the F8 distribution brake valve, the core of which lies in the precise matching of its L-shaped stainless steel shell 1 and the brass valve core 2, and the installation hole 6 is tightly connected with the F8 distribution brake valve. The spiral body 7 on the left side of the valve core not only regulates the airflow, but also enhances the dustproof effect. When sand and dust enter through the exhaust elbow 3, the blocking effect of the spiral body 7 makes the sand and dust settle in the shell, thereby protecting the distribution brake valve from pollution. The valve face 5 matches the size of the installation port 8 to ensure a leak-proof seal.

[0030] Through the bolt holes on the right end of the housing 1 and the valve core 2, the hexagonal bolt 4 is used to fasten the connection to form a stable structure. When the F8 distribution brake valve is exhausted, the airflow passes smoothly through the exhaust port 9, guided by the valve core 2, and the spiral body 7 slows down the flow rate, reduces noise, and is finally discharged from the exhaust elbow 3. At the same time, the dust and gravel in the housing 1 can also be discharged from the exhaust nozzle. In this process, the selection of stainless steel and brass materials not only ensures the corrosion resistance and strength of the equipment, but also ensures the stability and reliability of long-term use. In summary, the exhaust dust nozzle achieves the exhaust function of high efficiency, quietness, dust prevention, and clean dust and gravel through the dual guarantees of structural design and material optimization.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust dust nozzle for an F8 distribution brake valve, characterized in that: It comprises a shell and a valve core, wherein the shell has an L-shaped cross section and comprises a mounting port and an exhaust bend, and the valve core is located in the shell; a valve face is arranged at the front end of the valve core, and a mounting hole is arranged in the middle of the valve face.

2. The exhaust dust nozzle of the F8 distribution brake valve according to claim 1 is characterized in that: An exhaust port is arranged on the valve surface and is arranged around the mounting hole.

3. The exhaust dust nozzle of the F8 distribution brake valve according to claim 1 is characterized in that: A spiral body is arranged on the left side of the valve core, and the number of turns of the spiral body is 1.5-2 turns.

4. The exhaust dust nozzle of the F8 distribution brake valve according to claim 1 is characterized in that: The valve surface is adapted to the size of the installation opening.

5. The exhaust dust nozzle of the F8 distribution brake valve according to claim 3 is characterized in that: The upper and lower heights of the spiral body are the same as the diameter of the valve surface.

6. The exhaust dust nozzle of the F8 distribution brake valve according to claim 1 is characterized in that: The right end of the valve core and the right end of the shell are both provided with bolt holes, and the valve core and the shell are fixed together through the bolt holes and hexagonal bolts.

7. The exhaust dust nozzle of the F8 distribution brake valve according to claim 1 is characterized in that: The shell is made of stainless steel.

8. The exhaust dust nozzle of the F8 distribution brake valve according to claim 1 is characterized in that: The valve core is made of brass.

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