Plate type dust filter check valve for railway locomotive

Abstract

The utility model relates to the field of check valve equipment, disclose a railway locomotive is with board type filter dust check valve, including valve shell, the front surface fixed mounting of valve shell has the reinforcing rib, the inside of valve shell is provided with check assembly, check assembly is used for the check protection effect of water flow in the valve shell, the inner wall of valve shell still is provided with mounting assembly, mounting assembly is used for the installation of check assembly's supplementary. In the utility model, through the mutual cooperation of check plate, ring spring, installation rod and other spare parts in the equipment, ensure the sealing property and fluency of flow channel opening and closing, the elastic drive mechanism of ring spring makes check plate open automatically when the forward water flow, resets quickly when the reverse water flow, response sensitive and check reliable, the cooperation of installation rod, vice pole and mounting seat, guarantee the stability of check plate rotation, effectively prevent fluid reverse flow, guarantee the one -way flow safety of railway locomotive fluid pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of check valve equipment, and in particular to a plate-type dust filter check valve for railway locomotives. Background Technology

[0002] In the fluid pipeline system of railway locomotives, the check valve is a key component that ensures unidirectional fluid flow and prevents backflow of the medium, and is of great significance for maintaining the stable operation of the pipeline system and the safety of the equipment.

[0003] The aforementioned devices have the following drawbacks: the existing check valve's check component structure design is not reasonable enough, resulting in slow check action response, poor sealing, and easy leakage under reverse fluid pressure. This makes it unable to effectively prevent backflow of the medium, affecting the reliability of the railway locomotive pipeline system. Furthermore, the existing check valve's installation components lack a precise positioning structure, leading to difficult assembly and inconvenient maintenance. Additionally, the valve body's structural strength is insufficient, making it prone to deformation or even damage under long-term fluid pressure, thus reducing the equipment's service life. Therefore, a plate-type dust filter check valve for railway locomotives is proposed to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a plate-type dust filter check valve for railway locomotives, which aims to improve the problems of slow check response speed and poor sealing performance of check valves in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plate-type dust filter check valve for railway locomotives, comprising a valve shell, a reinforcing rib fixedly installed on the front surface of the valve shell, a check assembly provided inside the valve shell, the check assembly being used to prevent backflow of water through the valve shell, and an installation assembly being provided on the inner wall of the valve shell, the installation assembly being used to assist in the installation of the check assembly.

[0006] As a further description of the above technical solution: the check valve assembly includes a check plate and a secondary rod. A mounting base is fixedly connected to the rear surface of the check plate. A mounting rod is connected through a slot in the mounting base. A coil spring is sleeved on the outer side of the mounting rod near the right side of the mounting base. A hook is fixedly connected to the bottom end of the coil spring. A stop bar is fixedly connected to the top end of the coil spring. The stop bar corresponds to the secondary rod.

[0007] As a further description of the above technical solution: the mounting assembly includes a mounting hole and a sealing ring. The mounting hole is opened on the inner wall of the valve body. A secondary hole is also opened on the outer side of the inner wall of the valve body near the mounting hole. The mounting rod is fixedly installed in the mounting hole. The secondary rod is rotatably connected in the secondary hole. The sealing ring is fixedly installed in a groove inside the valve body.

[0008] As a further description of the above technical solution: the hook is sleeved on the outer wall of the auxiliary rod.

[0009] As a further description of the above technical solution: an installation groove is provided on the outer wall of the valve body.

[0010] As a further description of the above technical solution: the top corners of the outer surface of the valve housing are all set with a rounded corner structure.

[0011] As a further description of the above technical solution: the check plate is fixedly installed on the outer wall of the mounting rod by a mounting seat.

[0012] As a further description of the above technical solution: the check plate has an arc-shaped structure that matches the shape of the flow channel inside the valve body.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the check plate, coil spring, mounting rod, and other components in the equipment cooperate with each other through their connection relationships. The check plate adopts an arc-shaped structure that matches the shape of the flow channel, ensuring the sealing and smoothness of the flow channel opening and closing. The elastic driving mechanism of the coil spring enables the check plate to automatically open when the water flows in the forward direction and quickly reset when the water flows in the reverse direction, which is responsive and reliable. The cooperation between the mounting rod, the auxiliary rod, and the mounting seat ensures the stability of the check plate rotation, effectively prevents the fluid from flowing in the reverse direction, and ensures the unidirectional flow safety of the railway locomotive fluid pipeline system.

[0015] 2. In this utility model, the valve body, mounting hole, sealing ring and other components in the equipment are connected and cooperate with each other to achieve precise positioning of the mounting rod and auxiliary rod, which facilitates later maintenance and repair; the matching design of the sealing ring and the edge of the check plate forms a tight seal when the check plate is closed, which effectively prevents fluid leakage. Combined with the reinforcing ribs and rounded corner structure of the valve body, the structural strength and damage resistance of the valve body are further enhanced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main body of a plate-type dust filter check valve for railway locomotives proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the rear view of the main body of a plate-type dust filter check valve for railway locomotives proposed in this utility model.

[0018] Figure 3 This is an exploded view of a portion of the mounting rod of a plate-type dust filter check valve for railway locomotives, as proposed in this utility model.

[0019] Figure 4This is a partial schematic diagram of the check plate area of ​​a plate-type dust filter check valve for railway locomotives proposed in this utility model.

[0020] Legend:

[0021] 1. Valve housing; 2. Reinforcing rib; 3. Check valve assembly; 31. Check valve plate; 32. Mounting base; 33. Mounting rod; 34. Coil spring; 35. Hook; 36. Stop bar; 37. Secondary rod; 4. Mounting groove; 101. Mounting hole; 102. Secondary hole; 103. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a plate-type dust filter check valve for railway locomotives, comprising a valve body 1. The top corners of the outer surface of the valve body 1 are all set with a rounded corner structure. The valve body 1 serves as the main support structure of the entire plate-type dust filter check valve, used to accommodate and protect the internal components, and at the same time form a fluid flow channel. The rounded corners of its outer surface can reduce the impact damage during installation and use, and improve structural safety. A reinforcing rib 2 is fixedly installed on the front surface of the valve body 1. The reinforcing rib 2 is used to enhance the overall structural strength of the valve body 1, prevent the valve body 1 from deforming under fluid pressure, and ensure the structural stability of the valve body. A check assembly 3 is provided inside the valve body 1. An installation groove 4 is opened on the outer wall of the valve body 1. The installation groove 4 is used to cooperate with the connection parts of external pipes or equipment, so as to facilitate the fixed installation of the entire check valve in the fluid pipeline system of the railway locomotive. The check assembly 3 is used to prevent backflow of water through the valve body 1. An installation component is also opened on the inner wall of the valve body 1 to assist in the installation of the check assembly 3.

[0024] Reference Figure 1 - Figure 3The check valve assembly 3 includes a check plate 31 and a secondary rod 37. The check plate 31 has an arc-shaped structure that matches the shape of the flow channel inside the valve housing 1. As the core opening and closing component of the check valve assembly 3, the check plate 31 opens and closes the flow channel inside the valve housing 1 through its own rotation: when the water flows in the forward direction, the check plate 31 rotates around the mounting rod 33 under the action of water pressure, opening the flow channel; when the water flows in the reverse direction, the check plate 31 resets under the combined action of the elastic force of the coil spring 34 and the reverse water pressure, fitting the sealing ring 103. To close the flow channel and prevent reverse water flow, a mounting base 32 is fixedly connected to the rear surface of the check plate 31. The mounting base 32 is used to pass through the mounting rod 33, connecting the check plate 31 and the mounting rod 33, allowing the check plate 31 to rotate flexibly around the mounting rod 33. The mounting rod 33 is connected through the slot of the mounting base 32. The check plate 31 is fixedly mounted on the outer wall of the mounting rod 33 through the mounting base 32. The mounting rod 33 serves as the rotation axis of the check plate 31, providing support and rotation for the opening and closing action of the check plate 31. A movable fulcrum ensures the stability of the check plate 31's movement. A coil spring 34 is sleeved on the outer side of the mounting rod 33 near the right side of the mounting base 32. The coil spring 34 acts as an elastic driving component: when the check plate 31 is opened by positive water flow pressure, the coil spring 34 is twisted and stores force; when the positive water flow pressure disappears or reverse water flow occurs, the coil spring 34 releases its elastic potential energy, driving the check plate 31 to reset via the stop rod 36, ensuring the check plate 31 closes reliably. A hook 35 is fixedly connected to the bottom end of the coil spring 34, and the hook 35 is used to hold the coil spring... The bottom end of spring 34 is fixed to the auxiliary rod 37, providing a stable force support point for spring 34 and ensuring the effectiveness of its torsional energy storage and reset action. A stop rod 36 is fixedly connected to the top end of spring 34. The stop rod 36 is used to transmit the elastic force of spring 34 to check plate 31, driving check plate 31 to reset and close. The stop rod 36 and auxiliary rod 37 correspond to each other. Hook 35 is sleeved on the outer wall of auxiliary rod 37. Auxiliary rod 37 assists in the positioning of check assembly 3 by mounting rod 33, enhancing the overall structural stability of check assembly 3.

[0025] Reference Figure 2 - Figure 4 The mounting assembly includes a mounting hole 101 and a sealing ring 103. The mounting hole 101 is formed on the inner wall of the valve body 1 to accommodate and cooperate with the mounting rod 33, providing mounting positioning and rotational support for the mounting rod 33. A secondary hole 102 is also formed on the outer side of the inner wall of the valve body 1 near the mounting hole 101 to accommodate and cooperate with the secondary rod 37, providing mounting positioning for the secondary rod 37. The mounting rod 33 is fixedly installed in the mounting hole 101, and the secondary rod 37 is rotatably connected in the secondary hole 102. The sealing ring 103 is fixedly installed in a groove inside the valve body 1. The shape of the sealing ring 103 is adapted to the edge of the check plate 31. When the check plate 31 is closed, the edge of the check plate 31 is tightly fitted with the sealing ring 103, which can enhance the sealing performance when the flow channel is closed and prevent water leakage.

[0026] Working principle:

[0027] When water flows forward along the internal flow channel of valve housing 1, the fluid pressure acts on the arc-shaped surface of check plate 31. Since check plate 31 is rotatably connected to the outer wall of mounting rod 33 via mounting base 32, and mounting rod 33 is fixedly installed in mounting hole 101 on the inner wall of valve housing 1, check plate 31 rotates around mounting rod 33 in the direction of flow channel opening under the push of forward fluid pressure. Check plate 31 drives stop rod 36 to move synchronously via mounting base 32. Since stop rod 36 is fixedly connected to the top of coil spring 34, and the bottom of coil spring 34 is sleeved on the outer wall of auxiliary rod 37 via hook 35, auxiliary rod 37 is rotatably connected to auxiliary hole 102. Coil spring 34 deforms under torsional force and stores elastic potential energy. As check plate 31 rotates, its edge gradually disengages from the sealing ring 103 in the internal groove of valve housing 1, the flow channel is opened, and fluid smoothly passes through the channel formed by valve housing 1, completing forward flow. The reinforcing ribs 2 on the front surface of the valve body 1 enhance the overall strength of the valve body and prevent the valve body 1 from deforming due to fluid pressure. Meanwhile, the mounting grooves 4 on the outer wall of the valve body 1 ensure a stable connection between the valve body and the external pipeline system, guaranteeing the structural reliability of the flow process.

[0028] When the forward fluid pressure disappears or backflow occurs, the check valve assembly 3 activates its check valve protection mechanism: the reverse fluid pressure acts on the other side of the check valve plate 31, while the coil spring 34 releases its stored elastic potential energy, applying a reset driving force to the check valve plate 31 through the stop rod 36. Under the combined action of the reverse fluid pressure and the elastic force of the coil spring 34, the check valve plate 31 rotates in the opposite direction around the mounting rod 33 until its edge is tightly fitted with the sealing ring 103. Since the shape of the sealing ring 103 matches the edge of the check valve plate 31, the two form an effective seal after fitting together, blocking the flow path and preventing reverse fluid from passing through the valve body 1, thus achieving the check valve function. At this time, the auxiliary rod 37 provides a stable force fulcrum for the coil spring 34 through the hook 35, ensuring the smoothness of the elastic potential energy release process. The mounting hole 101 and the auxiliary hole 102 respectively position the mounting rod 33 and the auxiliary rod 37, ensuring the accuracy of the check valve plate 31's reset action. The rounded corner structure on the outer surface of valve body 1 provides continuous protection throughout the entire operation, reducing valve body damage caused by vibration or installation operations, and further improving the durability of the equipment.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plate-type dust filter check valve for railway locomotives, comprising a valve body (1), characterized in that: The front surface of the valve housing (1) is fixedly equipped with reinforcing ribs (2), and a check assembly (3) is provided inside the valve housing (1). The check assembly (3) is used to prevent backflow of water through the valve housing (1). An installation assembly is also provided on the inner wall of the valve housing (1). The installation assembly is used to assist in the installation of the check assembly (3).

2. The plate-type dust filter check valve for railway locomotives according to claim 1, characterized in that: The check valve assembly (3) includes a check valve plate (31) and a secondary rod (37). A mounting base (32) is fixedly connected to the rear surface of the check valve plate (31). A mounting rod (33) is connected through the slot of the mounting base (32). A coil spring (34) is sleeved on the outer side of the mounting rod (33) near the right side of the mounting base (32). A hook (35) is fixedly connected to the bottom end of the coil spring (34). A stop bar (36) is fixedly connected to the top end of the coil spring (34). The stop bar (36) corresponds to the secondary rod (37).

3. A plate-type dust filter check valve for railway locomotives according to claim 2, characterized in that: The mounting assembly includes a mounting hole (101) and a sealing ring (103). The mounting hole (101) is opened on the inner wall of the valve housing (1). A secondary hole (102) is also opened on the outer side of the inner wall of the valve housing (1) near the mounting hole (101). The mounting rod (33) is fixedly installed in the mounting hole (101). The secondary rod (37) is rotatably connected in the secondary hole (102). The sealing ring (103) is fixedly installed in a groove inside the valve housing (1).

4. A plate-type dust filter check valve for railway locomotives according to claim 2, characterized in that: The hook (35) is sleeved on the outer wall of the auxiliary rod (37).

5. A plate-type dust filter check valve for railway locomotives according to claim 1, characterized in that: The valve body (1) has an installation groove (4) on its outer wall.

6. A plate-type dust filter check valve for railway locomotives according to claim 1, characterized in that: The outer surface of the valve housing (1) is designed with rounded corners at the top corners.

7. A plate-type dust filter check valve for railway locomotives according to claim 2, characterized in that: The check plate (31) is fixedly installed on the outer wall of the mounting rod (33) by the mounting base (32).

8. A plate-type dust filter check valve for railway locomotives according to claim 2, characterized in that: The check plate (31) has an arc-shaped structure that matches the shape of the flow channel inside the valve body (1).

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