Valve element structure for buffering hydraulic valve

Abstract

The valve element structure for the buffering function of the hydraulic valve comprises a valve body and a valve element, flange plates are arranged on the two sides of the valve body, a hydraulic bin is arranged in the center of the top of the valve body, a through hole is formed in the center of the top of the hydraulic bin in a penetrating mode, threads are arranged on the inner surface of the through hole, and the valve element is arranged at the position of the through hole through the threads. The top of the valve element is connected with the center of the bottom of a limiting block, the bottom of the limiting block makes contact with the top of a hydraulic bin, sleeves are arranged on the two sides of the surface of the hydraulic bin, sliding plates are slidably connected to the inner side faces of the sleeves, and the outer side faces of the sliding plates are connected with first connecting rods. On the basis of the connection mode of the valve element and the valve body in the prior art, the locking groove is formed in the surface of the valve element, and the locking groove locks the valve element into the hydraulic bin through the locking block, so that the installation position between the valve element and the valve body is firm and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a valve core structure used for buffering of hydraulic valves. Background Art

[0002] A hydraulic valve is an automated component operated by pressure oil. It is controlled by the pressure oil of a pressure regulating valve. It is usually used in combination with an electromagnetic pressure regulating valve and can be used to remotely control the on / off of the oil, gas, and water pipeline systems of a hydropower station. It is often used for clamping, controlling, lubricating, and other oil circuits. There are direct-acting and pilot-operated types. The most important part of a hydraulic valve is the valve core. The hydraulic valve core is one of the core components of the hydraulic valve. Its function is to control the flow direction, pressure, and flow of the oil in the hydraulic system, thereby achieving motion control of the actuator. The design and manufacture of the hydraulic valve core has an important impact on the performance and reliability of the hydraulic system.

[0003] However, after the valve core of the hydraulic valve in the prior art is fixed to the valve body, the valve core will become loose during a long period of operation, so that the valve core and the valve body are separated, thereby affecting the use of the hydraulic valve. Utility Model Content

[0004] The utility model aims to provide a valve core structure for buffering of a hydraulic valve, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve core structure for the buffering effect of a hydraulic valve, comprising a valve body and a valve core, flanges are arranged on both sides of the valve body, a hydraulic compartment is arranged at the top center of the valve body, a through hole is arranged through the top center of the hydraulic compartment, a thread is arranged on the inner surface of the through hole, a valve core is arranged at the through hole through the thread, the top of the valve core is connected to the bottom center of a limit block, the bottom of the limit block is in contact with the top of the hydraulic compartment, sleeves are arranged on both sides of the surface of the hydraulic compartment, the inner side surface of the sleeve is slidably connected to a sliding plate, and the outer side surface of the sliding plate is connected to the first moving rod.

[0006] Preferably, circular notches with the same diameter are respectively opened on both sides of the sleeve, and a first moving rod is arranged inside the circular notch of the sleeve located on the outside, and the other end of the first moving rod is located above the outside of the sleeve.

[0007] Preferably, the other end of the inner circular notch of the sleeve is located at the through hole, a second connecting rod is provided at the inner circular notch, one end of the second connecting rod is connected to the sliding plate, the other end of the second connecting rod is provided with a locking block, a locking groove is provided on the surface of the valve core, the cross-sectional shape of the locking groove is a circular ring, and the locking groove is snap-fittedly connected to the locking block.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The utility model discloses a valve core structure for hydraulic valve buffering. Based on the prior art method of connecting the valve core and the valve body, a locking groove is provided on the surface of the valve core. The locking groove locks the valve core to the inside of the hydraulic compartment through a locking block, so that the installation between the valve core and the valve body is firm and reliable.

[0010] The utility model discloses a valve core structure for buffering of a hydraulic valve, in which a magnetic attraction structure is arranged at the bottom end of a sleeve and the bottom of a sliding plate. When the sliding plate is connected to the bottom end of the sleeve through the magnetic attraction structure, a locking block will be tightly locked into a locking groove, thereby preventing the sliding plate from sliding again during use, causing the locking block to leave the locking groove, thereby reducing the installation firmness between the valve core and the valve body.

[0011] The utility model discloses a valve core structure for buffering of a hydraulic valve, wherein the cross section of a locking groove is in the shape of a circular ring, and no matter how the valve core rotates, the locking block will be locked into a part of the locking groove, so that the installation between the valve core and the valve body is firm and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the hydraulic compartment of the utility model;

[0014] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0015] In the figure: 1. valve body; 2. flange; 3. hydraulic chamber; 4. limit block; 5. sleeve; 6. first moving rod; 7. valve core; 8. locking groove; 9. locking block; 10. sliding plate; 11. second moving rod. DETAILED DESCRIPTION

[0016] 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.

[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3 The utility model provides a technical solution: a valve core structure for the buffering effect of a hydraulic valve, comprising a valve body 1 and a valve core 7. Flange plates 2 are arranged on both sides of the valve body 1. A hydraulic chamber 3 is arranged at the top center of the valve body 1. A through hole is arranged through the top center of the hydraulic chamber 3. A thread is arranged on the inner surface of the through hole. A valve core 7 is arranged at the through hole through the thread. The top of the valve core 7 is connected to the bottom center of a limit block 4. The bottom of the limit block 4 contacts with the top of the hydraulic chamber 3. Sleeves 5 are arranged on both sides of the surface of the hydraulic chamber 3. A sliding plate 10 is slidably connected to the inner side surface of the sleeve 5. The outer side surface of the sliding plate 10 is connected to the first moving rod 6.

[0020] Furthermore, circular notches with the same diameter are respectively formed on both sides of the sleeve 5 , and a first moving rod 6 is arranged inside the circular notch of the outer sleeve 5 , and the other end of the first moving rod 6 is located above the outer side of the sleeve 5 .

[0021] Specifically, a magnetic attraction structure is provided at the bottom end of the sleeve 5 and the bottom of the sliding plate 10. When the sliding plate 10 is connected to the bottom end of the sleeve 5 through the magnetic attraction structure, the locking block 9 will be tightly locked to the locking groove 8, thereby preventing the sliding plate 10 from sliding again during use, causing the locking block 9 to leave the locking groove, thereby reducing the installation firmness between the valve core 7 and the valve body 1.

[0022] Furthermore, the other end of the inner circular notch of the sleeve 5 is located at the through hole, and a second connecting rod 11 is arranged at the inner circular notch. One end of the second connecting rod 11 is connected to the sliding plate 10, and a locking block 9 is arranged at the other end of the second connecting rod 11. A locking groove 8 is provided on the surface of the valve core 7, and the cross-sectional shape of the locking groove 8 is a circular ring. The locking groove 8 is snap-fittedly connected to the locking block 9.

[0023] Specifically, the cross-section of the locking groove 8 is in the shape of a circular ring. No matter how the valve core 7 rotates, the locking block 9 will be locked into a part of the locking groove 8, so that the installation between the valve core 7 and the valve body 1 is firm and reliable.

[0024] It should be noted that a spring is arranged between the end of the piston rod at the bottom of the valve core 7 and the end cover inside the valve body 1, and the collision is buffered by the elastic force of the spring. This is the prior art and its specific structure and working principle will not be described in detail.

[0025] Working principle: When in use, first rotate the valve core 7 to connect to the through hole of the hydraulic warehouse 3. At this time, the bottom of the limit block 4 will be connected to the top of the hydraulic warehouse 3. Then the staff moves the first moving rod 6 toward the hydraulic warehouse 3. At this time, the sliding plate 10 at the bottom end of the first moving rod 6 will be connected to the bottom end of the sleeve 5 through the magnetic structure, so that the installation between the valve core 7 and the valve body 1 is firm and reliable.

[0026] When the valve core 7 needs to be removed, the staff first moves the first moving rod 6 to remove the sliding plate 10 from the magnetic structure at the bottom end of the sleeve 5, and then moves the locking block 9 out of the locking groove 8, and then rotates the valve core 7 to take out the valve core 7.

[0027] It should be noted that the prior art used in the magnetic attraction structure of the present invention will not be described in detail here.

[0028] The utility model is based on the existing technology of connecting the valve core 7 and the valve body 1, and a locking groove 8 is opened on the surface of the valve core 7. The locking groove 8 locks the valve core 7 to the inside of the hydraulic chamber 3 through a locking block 9, so that the installation between the valve core 7 and the valve body 1 is firm and reliable.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve core structure for hydraulic valve buffering, comprising a valve body (1) and a valve core (7), characterized in that: Flanges (2) are provided on both sides of the valve body (1), a hydraulic chamber (3) is provided at the top center of the valve body (1), a through hole is provided at the top center of the hydraulic chamber (3), a thread is provided on the inner surface of the through hole, a valve core (7) is provided at the through hole through the thread, the top of the valve core (7) is connected to the bottom center of the limit block (4), the bottom of the limit block (4) is in contact with the top of the hydraulic chamber (3), sleeves (5) are provided on both sides of the surface of the hydraulic chamber (3), the inner side surface of the sleeve (5) is slidably connected to a sliding plate (10), and the outer side surface of the sliding plate (10) is connected to the first moving rod (6).

2. A valve core structure for hydraulic valve buffering according to claim 1, characterized in that: Circular notches with the same diameter are respectively provided on both sides of the sleeve (5), and a first moving rod (6) is arranged inside the circular notch of the sleeve (5) on the outside, and the other end of the first moving rod (6) is located above the outside of the sleeve (5).

3. A valve core structure for hydraulic valve buffering according to any one of claims 1 or 2, characterized in that: The other end of the inner circular notch of the sleeve (5) is located at the through hole, and a second connecting rod (11) is provided at the inner circular notch. One end of the second connecting rod (11) is connected to the sliding plate (10), and the other end of the second connecting rod (11) is provided with a locking block (9). A locking groove (8) is provided on the surface of the valve core (7), and the cross-sectional shape of the locking groove (8) is annular. The locking groove (8) is snap-fittedly connected to the locking block (9).

Images