Novel valve element device

Abstract

The utility model relates to the technical field of valve core devices, and particularly discloses a novel valve core device which comprises a valve core shell, a valve plate, a base and a valve handle, the valve handle is installed above the valve core shell, the axis of the valve handle and the sphere center of the valve core shell are located on the same straight line, the valve plate is installed inside the valve core shell, and the valve plate is installed on the base. The base is installed at the bottom of the valve element shell, the base is installed below the valve block, the valve handle, the valve block and the base are coaxially installed, and the novel valve element device is used for controlling the flow of a hydraulic valve and adjusting the flowing direction of fluid according to the working requirement of the hydraulic valve.

Description

Technical Field

[0001] The utility model relates to the technical field of spool devices, in particular to a new spool device for a hydraulic valve. Background Art

[0002] The hydraulic spool is a key component in a hydraulic valve, and its structure and function are crucial for the performance of the hydraulic system. Generally, the hydraulic spool mainly consists of the following structural parts: Spool body: The main part of the spool, usually made of metal material, with a certain geometric shape. Its design determines the flow rate and pressure control characteristics of the valve. Working surface: The surface of the spool body that contacts the inner cavity of the valve body. The accuracy and smoothness of the working surface directly affect the sealing performance of the valve and the flow characteristics of the fluid passage. Guiding part: Used to guide the movement of the spool in the valve body, ensuring the stable movement of the spool, reducing wear and jamming phenomena.

[0003] The hydraulic spool plays an important role in the operation of the hydraulic valve, including: By changing the displacement of the spool to adjust the channel area of the fluid, thereby controlling the flow rate of the fluid. The position of the spool in the fluid passage determines the flow rate and velocity of the fluid. At the same time, by changing the position of the spool to control the flow direction of the fluid, different positions of the spool correspond to different fluid paths, thereby changing the flow direction of the fluid. When the system pressure exceeds the set value, the spool will move under the action of the spring, changing the fluid flow path, allowing some fluid to flow back to the oil tank or bypass, thereby reducing the system pressure. If the pressure is lower than the set value, the spool will return to the initial position, closing the bypass and allowing the system pressure to rise.

[0004] The existing spools of hydraulic valves have the following technical problems: 1. Unstable flow rate: Due to the slight change in the position of the spool, the fluid flow rate may fluctuate, affecting the stability and accuracy of the system. 2. Sealing problem: The aging, damage or improper assembly of the sealing ring may cause hydraulic oil leakage, affecting the efficiency and stability of the system. 3. Wear: The friction between the spool and the valve body may cause wear of the sealing surface, affecting the sealing performance. 4. Complex maintenance: Regular maintenance and replacement of spool components may require professional tools, increasing the complexity and cost of maintenance. Summary of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the above problems, the utility model provides a new spool device, especially a new spool device for a hydraulic valve, aiming to solve the problems of unstable flow control, poor sealing effect, and high installation and maintenance costs existing in the current spools of hydraulic valves.

[0007] (II) Technical Solutions

[0008] To solve the above technical problems, the present utility model provides a novel valve core device, mainly including: a valve core housing, a valve plate, a base, and a valve handle. The valve handle is installed above the valve core housing, and the axis of the valve handle and the center of the spherical valve core housing are on the same straight line. The valve plate is installed inside the valve core housing, and the base is installed at the bottom of the valve core housing. The base is installed below the valve plate. The valve handle, the valve plate, and the base are coaxially installed. The valve core is used to control the flow rate of the hydraulic valve and adjust the direction of flow control according to the working requirements of the hydraulic valve.

[0009] Preferably, the cross-section of the valve core housing is circular. The valve core housing is composed of a circular ring and a hemispherical housing. The valve core housing is installed below the valve handle and at the center inside the hydraulic valve.

[0010] Preferably, the valve handle is a cylinder, the cross-section of the valve handle is circular, and the material of the valve handle is 20 steel.

[0011] Preferably, an annular groove and a chamfer are provided on the valve handle. The annular groove is located at the top of the valve core housing, and the chamfer is a 45° chamfer.

[0012] Preferably, the cross-section of the valve plate is circular, a thread is provided on the valve plate, and the number of valve plates is 1.

[0013] Preferably, the connection method between the valve plate and the valve core housing is threaded connection, and the valve plate is rotated into the valve core housing through the thread.

[0014] Preferably, the base is a circular ring, the cross-section of the base is an annular circle, an internal thread is provided inside the base, the number of bases is 1, and a through hole is provided on the base. The through hole is used for the inflow and outflow of water in the hydraulic valve.

[0015] Beneficial effects

[0016] 1. For the novel valve core device provided by the present utility model, the valve handle of the valve core device is installed above the valve core housing, the axis of the valve handle and the center of the spherical valve core housing are on the same straight line, the valve plate is installed inside the valve core housing, and the base is installed at the bottom of the valve core housing. The structure of the valve core device is simple, which is convenient for the installation and disassembly inside the hydraulic valve.

[0017] 2. For the novel valve core device provided by the present utility model, an internal thread is provided inside the valve core housing of the valve core device, and an external thread is provided outside the valve plate, which is convenient for installing the valve plate inside the valve core housing through threaded connection. The operation is simple, which helps to save the installation time and improve the working efficiency of the hydraulic valve.

[0018] 3. A novel spool device provided by the present utility model can control the flow direction of the fluid inside the hydraulic valve by changing the position of the spool. Different positions of the spool correspond to different fluid paths, thereby changing the flow direction of the fluid and achieving the purpose of controlling the flow rate inside the hydraulic valve.

[0019] 4. A novel spool device provided by the present utility model has a threaded connection between the valve disc of the spool and the spool housing, reducing the friction with the spool housing, having good sealing performance, helping to prevent accidental leakage of the fluid inside the hydraulic valve. In addition, the spool device has less friction and is not easily worn, thus extending the service life of the spool and reducing the time and cost of regular maintenance and replacement of spool components.

[0020] 5. A novel spool device provided by the present utility model has a relatively stable spool position, and the spool is not easily loosened, reducing the flow rate fluctuation when the fluid flows inside the hydraulic valve, thereby maintaining the stability and accuracy of the operation of the hydraulic valve. Brief Description of the Drawings

[0021] Figure 1 is the overall structure diagram of a novel spool device of the present utility model;

[0022] Figure 2 is the lateral exploded view of a novel spool device of the present utility model;

[0023] Figure 3 is the side view of a novel spool device of the present utility model;

[0024] Figure 4 is the axial exploded view of a novel spool device of the present utility model;

[0025] Figure 5 is the front view of a novel spool device of the present utility model.

[0026] The corresponding component names for the reference numerals in the drawings are: 1, spool housing; 2, valve disc; 3, base; 4, valve handle. Detailed Embodiments

[0027] The following describes the present application in detail with reference to the drawings and specific embodiments.

[0028] The following describes the implementation manners of the present application through specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope protected by the present application.

[0029] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0030] It should also be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The drawings only show the components related to the present application, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in its actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0031] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0032] The following describes the technical solutions provided by each embodiment of the present application in conjunction with the accompanying drawings.

[0033] Refer to Figures 1 to 5 , the present utility model provides a novel valve core device. In order to make the practical purpose, technical solution, and advantages of the present utility model clearer, the following combines the accompanying drawings and the working process of this device to introduce the specific operation process of the present utility model in detail.

[0034] The present utility model provides a novel spool device, mainly including: a spool housing 1, a valve plate 2, a base 3, and a valve handle 4. The valve handle 4 is installed above the spool housing 1, and the axis of the valve handle 4 and the center of the ball of the spool housing 1 are on the same straight line. The valve plate 2 is installed inside the spool housing 1, the base 3 is installed at the bottom of the spool housing 1, the base 3 is installed below the valve plate 2, the valve handle 4 is coaxially installed with the valve plate 2 and the base 3, and the spool is used to control the flow rate of the hydraulic valve and adjust the direction of flow control according to the working requirements of the hydraulic valve.

[0035] Refer to Figures 1 to 5 , the cross-section of the spool housing 1 is circular, the spool housing 1 is composed of a circular ring and a hemispherical housing, the spool housing 1 is installed below the valve handle 4, and the spool housing 1 is installed at the internal center of the hydraulic valve.

[0036] Refer to Figures 1 to 5 , the valve handle 4 is a cylinder, the cross-section of the valve handle 4 is circular, and the material of the valve handle 4 is 20 steel.

[0037] Refer to Figures 1 to 5 , an annular groove and a chamfer are provided on the valve handle 4. The annular groove is located at the top of the spool housing 1, and the chamfer is a 45° chamfer.

[0038] Refer to Figures 2 to 5 , the cross-section of the valve plate 2 is circular, threads are provided on the valve plate 2, and the number of valve plates 2 is 1.

[0039] Refer to Figures 2 to 5 , the connection method between the valve plate 2 and the spool housing 1 is threaded connection, and it is rotated into the spool housing 1 through the thread.

[0040] Refer to Figures 1 to 5 , the base 3 is a circular ring, the cross-section of the base 3 is an annular circle, internal threads are provided inside the base 3, the number of bases 3 is 1, and through holes are provided on the base 3 for the inflow and outflow of water in the hydraulic valve.

[0041] The working principle and specific working process of a novel spool device are as follows: First, rotate the valve plate 2 of the spool device into the spool housing 1 through threaded connection, install the base 3 on the valve plate 2 by rotation, and at the same time tighten and fix the position of the spool. According to the position of the spool in the hydraulic valve, install the spool at the center of the specified hydraulic valve. Start the hydraulic valve. According to the external working requirements, fluid flows into the hydraulic valve and flows out through the through hole of the spool base 3. At this time, according to the external control signal, timely adjust the position of the spool inside the hydraulic valve, move the novel spool to the predetermined position, and the movement of the spool changes the flow path of the fluid, thereby changing the flow direction of the fluid, switching the liquid in the hydraulic valve from one port to another port to flow out, and the liquid in the hydraulic valve flows to different outlets according to the position of the spool to perform the required operations.

[0042] For the same or similar parts among the various embodiments in this specification, reference can be made to each other, and each embodiment focuses on the differences from other embodiments.

[0043] As described above, it is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by this application should be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A new type of valve core device, characterized in that: The invention comprises a valve core housing (1), a valve plate (2), a base (3), and a valve handle (4), wherein the valve handle (4) is installed above the valve core housing (1), the axis of the valve handle (4) and the center of the sphere of the valve core housing (1) are on the same straight line, the valve plate (2) is installed inside the valve core housing (1), the base (3) is installed at the bottom of the valve core housing (1), and the base (3) is installed below the valve plate (2), the valve handle (4) is coaxially installed with the valve plate (2) and the base (3), and the valve core is used to control the flow rate of the hydraulic valve and adjust the flow direction of the fluid according to the working requirements of the hydraulic valve.

2. A novel valve core device according to claim 1, characterized in that: The cross section of the valve core housing (1) is circular, the valve core housing (1) is composed of a circular ring and a hemispherical housing, the valve core housing (1) is installed below the valve handle (4), and the valve core housing (1) is installed at the inner center of the hydraulic valve.

3. A novel valve core device according to claim 1, characterized in that: The valve handle (4) is a cylinder, the cross section of the valve handle (4) is circular, and the material of the valve handle (4) is 20 steel.

4. A novel valve core device according to claim 1, characterized in that: The valve handle (4) is provided with an annular groove and a chamfer; the annular groove is located at the top of the valve core housing (1), and the chamfer is 45°.

5. A novel valve core device according to claim 1, characterized in that: The cross section of the valve plate (2) is circular, a thread is provided on the valve plate (2), and the number of the valve plates (2) is one.

6. A novel valve core device according to claim 1, characterized in that: The valve plate (2) is connected to the valve core housing (1) in a threaded connection, and is rotated into the interior of the valve core housing (1) through the thread.

7. A novel valve core device according to claim 1, characterized in that: The base (3) is a circular ring, the cross section of the base (3) is annular and circular, an internal thread is provided inside the base (3), the number of the base (3) is one, and a through hole is provided on the base (3), and the through hole is used for the inlet and outlet of water in the hydraulic valve.

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