A kind of anti-vibration and wear-resistant structure of hydraulic control valve

Abstract

The utility model relates to the technical field of hydraulic control valves, and discloses a valve vibration-proof and wear-resistant structure of a hydraulic control valve, comprising a control valve assembly and an anti-vibration assembly movably connected inside the control valve assembly, wherein the control valve assembly comprises a control valve body, a baffle is arranged inside the control valve body, a wear-resistant layer is arranged on the baffle, an elastic diaphragm is arranged on the upper end of the wear-resistant layer, the upper end of the elastic diaphragm is movably connected to a valve cover, a valve stem is arranged directly below the valve cover, the lower end of the valve stem is movably connected to a valve core, the outer surface of the valve body is movably connected to a regulating valve, the anti-vibration assembly comprises a spring A, the lower end of the spring A is movably connected to a sealing sheet, a mounting frame is arranged below the sealing sheet, the upper end of the mounting frame is movably connected to a connecting rod, one end of the connecting rod is movably connected to a sleeve ring, one end of the sleeve ring is movably connected to a spring B, and the inner surface of the sleeve ring is movably connected to a fixing rod, and by arranging the vibration reduction assembly, when the control valve vibrates, the sleeve ring moves outwards and transmits excess pressure to the spring B for absorption, thereby playing a vibration reduction role.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control valves, in particular to a valve vibration-proof and wear-resistant structure of a hydraulic control valve. Background Art

[0002] A hydraulic control valve is a valve controlled by water pressure. It consists of a main valve and its attached conduit, pilot valve, needle valve, ball valve and pressure gauge. It can be transformed into a remote-controlled float valve, a pressure reducing valve, a slow-closing check valve, a flow control valve, a pressure relief valve, a hydraulic electric control valve, a water pump control valve, etc., depending on the purpose, function and location of use. A filter should be installed in front of the hydraulic control valve, and it should be easy to discharge sewage.

[0003] Chinese patent document CN218992487U discloses a hydraulic control valve, including a valve body, an inlet and an outlet are respectively arranged at both ends of the valve body, a valve cover is connected to the top of the valve body, an elastic diaphragm is connected between the valve cover and the valve body, a valve disc is connected to the elastic diaphragm, a valve seat is connected to the fluid passage, a sealing gasket is installed on the valve disc, the space between the valve disc, the elastic diaphragm and the valve cover is a pressure stabilizing chamber, an inlet detection hole and an outlet detection hole are arranged on the upper part of the valve body, and an inlet connecting hole and an outlet are arranged on the valve cover. A connecting hole, an inlet through hole and an outlet through hole which can communicate with the pressure-stabilizing chamber are also provided on the valve seat. The inlet connecting hole is connected to the inlet through hole through a needle valve and an inlet pipeline, and the outlet connecting hole is connected to the outlet through hole through an outlet pipeline and a pressure-reducing pilot valve. However, the valve stem and the valve seat of the hydraulic control valve are impacted by the water flow during the downward movement, which may cause shaking, affecting the use effect of the control valve. At the same time, the valve seat is in direct contact with the valve body. After long-term use, the valve seat will be worn, affecting the overall sealing of the hydraulic control valve. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the valve stem and valve seat of the existing hydraulic control valve will vibrate when impacted by the water flow during the downward movement, which affects the use effect of the control valve. At the same time, the valve seat is in direct contact with the valve body, and the valve seat will wear after long-term use, which affects the overall sealing of the hydraulic control valve. A valve vibration-proof and wear-resistant structure of a hydraulic control valve is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve vibration-proof and wear-resistant structure of a hydraulic control valve, including a control valve assembly and an anti-vibration assembly movably connected inside the control valve assembly, the control valve assembly including a control valve body, a baffle is provided on the inside of the control valve body, a wear-resistant layer is provided on the baffle, an elastic diaphragm is provided on the upper end of the wear-resistant layer, the upper end of the elastic diaphragm is movably connected to the valve cover, the lower end of the valve cover is fixedly connected to the sleeve, a valve stem is provided directly below the valve cover, the lower end of the valve stem is movably connected to the valve core, the outer surface of the valve body is movably connected to the regulating valve, the anti-vibration assembly includes a spring A, the lower end of the spring A is movably connected to a sealing plate, a mounting frame is provided below the sealing plate, the upper end of the mounting frame is movably connected to a connecting rod, one end of the connecting rod is movably connected to a ring, one end of the ring is movably connected to a spring B, and the inner surface of the ring is movably connected to the fixed rod.

[0006] Preferably, both ends of the control valve body are fixedly connected to flanges, and mounting holes are provided on the flanges;

[0007] Used to facilitate the installation of hydraulic control valves on pipelines.

[0008] Preferably, the inner surface of the control valve body is fixedly connected to a fixing block, two groups of fixing blocks are provided, and each group is provided with two fixing blocks, and both ends of the fixing rod are movably connected to the fixing blocks;

[0009] It is used to install the fixing rod on the control valve body to reduce the vibration of the control valve body.

[0010] Preferably, the baffle is provided with a through hole;

[0011] Used to facilitate the passage of liquid through the control valve body.

[0012] Preferably, the upper end of the valve cover is movably connected to the connecting column, the upper end of the connecting column is fixedly connected to the lifting ring, and the lower end of the connecting column is provided with a threaded groove A;

[0013] Used to facilitate the lifting operation of the hydraulic control valve as a whole.

[0014] Preferably, a thread groove B is formed at the lower end of the valve stem, and a nut is threadedly connected to the outer surface of the thread groove B;

[0015] Used to fix the valve core on the valve stem.

[0016] Preferably, the input end of the regulating valve is movably connected to the control valve body, the output end of the regulating valve is movably connected to the valve cover, and an adjusting knob is provided at the upper end of the regulating valve;

[0017] Used to open or close the hydraulic control valve according to the set pressure value.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The utility model proposes a valve vibration-proof and wear-resistant structure for a hydraulic control valve. By setting a vibration-reducing component, when the valve stem rises or falls, the valve core will vibrate due to changes in the internal pressure of the water pipe. While moving outward through the collar, the excess pressure is transmitted to the spring B for absorption, thereby playing a vibration-reducing role.

[0020] 2. The utility model proposes a valve vibration-proof and wear-resistant structure for a hydraulic control valve. By setting a control valve body assembly, a wear-resistant layer is provided in the groove opened on the baffle plate, thereby avoiding direct contact between the valve core and the baffle plate, thereby reducing the wear between the valve core and the baffle plate and increasing the service life of the control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional schematic diagram of a valve vibration-proof and wear-resistant structure of a hydraulic control valve proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of a control valve assembly of a hydraulic control valve with a valve vibration and wear-resistant structure proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of a control valve body of a hydraulic control valve with a valve vibration and wear-resistant structure proposed by the utility model;

[0024] Figure 4 An exploded schematic diagram of a vibration reduction component of a valve vibration and wear-resistant structure of a hydraulic control valve proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of a valve core of a hydraulic control valve with a vibration-proof and wear-resistant structure proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of a connecting column of a valve vibration-proof and wear-resistant structure of a hydraulic control valve proposed by the utility model;

[0027] Legend:

[0028] 1. Control valve assembly; 11. Control valve body; 111. Flange; 112. Mounting hole; 113. Fixing block; 12. Baffle; 121. Through hole; 13. Wear-resistant layer; 14. Elastic diaphragm; 15. Valve cover; 151. Connecting column; 152. Lifting ring; 153. Thread groove A; 154. Sleeve; 16. Valve stem; 161. Thread groove B; 162. Nut; 17. Valve core; 18. Regulating valve; 181. Regulating knob; 2. Anti-vibration assembly; 21. Spring A; 22. Sealing sheet; 23. Mounting bracket; 24. Connecting rod; 25. Ring; 26. Spring B; 27. Fixing rod. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does 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 of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Reference Figure 1-6 The utility model provides an embodiment: a hydraulic control valve anti-vibration and wear-resistant structure, comprising a control valve assembly 1, and an anti-vibration assembly 2 movably connected to the inner side of the control valve assembly 1, the control valve assembly 1 comprises a control valve body 11, a baffle 12 is arranged on the inner side of the control valve body 11, a wear-resistant layer 13 is arranged on the baffle 12 to prevent the valve core 17 from directly contacting the baffle 12 and causing wear, an elastic diaphragm 14 is arranged on the upper end of the wear-resistant layer 13, the upper end of the elastic diaphragm 14 is movably connected to the valve cover 15, the lower end of the valve cover 15 is fixedly connected to the sleeve 154, and a fixing spring A 21. A valve stem 16 is arranged just below the valve cover 15, and the lower end of the valve stem 16 is movably connected to the valve core 17. The outer surface of the valve body 11 is movably connected to the regulating valve 18. The anti-vibration component 2 includes a spring A21, and the lower end of the spring A21 is movably connected to a sealing sheet 22 to increase the sealing between the elastic diaphragm 14 and the valve cover 15. A mounting frame 23 is arranged below the sealing sheet 22, and the upper end of the mounting frame 23 is movably connected to a connecting rod 24, one end of the connecting rod 24 is movably connected to a collar 25, one end of the collar 25 is movably connected to a spring B26, and the inner surface of the collar 25 is movably connected to a fixing rod 27.

[0032] The two ends of the control valve body 11 are fixedly connected to the flange 111, and the flange 111 is provided with a mounting hole 112, which is convenient for installing the hydraulic control valve 11 on the pipeline. The inner surface of the control valve body 11 is fixedly connected to the fixing block 113, and the fixing block 113 is provided with two groups, and each group is provided with two fixing blocks 113. The two ends of the fixing rod 27 are movably connected to the fixing block 113, and the fixing rod 27 is installed on the control valve body 11. The baffle 12 is provided with a through hole 121, which is convenient for the liquid in the pipeline to pass through the control valve body 11. The valve cover 15 The upper end is movably connected to a connecting column 151, and the upper end of the connecting column 151 is fixedly connected to a lifting ring 152. A threaded groove A153 is provided at the lower end of the connecting column 151 to facilitate lifting operations on the hydraulic control valve. A threaded groove B161 is provided at the lower end of the valve stem 16, and a nut 162 is threadedly connected to the outer surface of the threaded groove B161 to fix the valve core 17 on the valve stem 16. The input end of the regulating valve 18 is movably connected to the control valve body 11, and the output end of the regulating valve 18 is movably connected to the valve cover 15, and an adjusting knob 181 is provided at the upper end of the regulating valve 18.

[0033] Working principle: First, set the appropriate pressure value by rotating the adjustment knob 181. When the pressure in the control valve body 11 is greater than the pressure in the valve cover 15, the valve core 17 is pushed open to allow the liquid in the pipeline to flow. After a part of the liquid has flowed, the valve core 17 is reset by the spring A21 to cut off the liquid. When the valve core 17 falls, it contacts the wear-resistant layer 13 to avoid direct contact between the baffle 12 and the valve core 17 and wear. When vibration occurs, the valve core 17 moves upward, thereby causing the connecting rod 24 to move as well. As a result, the ring 25 moves to one side while squeezing the spring B26 to absorb the kinetic energy, thereby preventing the hydraulic control valve from vibrating.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve vibration-proof and wear-resistant structure for a hydraulic control valve, comprising a control valve assembly (1), and an anti-vibration assembly (2) movably connected inside the control valve assembly (1), characterized in that: The control valve assembly (1) comprises a control valve body (11), a baffle (12) is arranged inside the control valve body (11), a wear-resistant layer (13) is arranged on the baffle (12), an elastic diaphragm (14) is arranged at the upper end of the wear-resistant layer (13), the upper end of the elastic diaphragm (14) is movably connected to a valve cover (15), the lower end of the valve cover (15) is fixedly connected to a sleeve (154), a valve stem (16) is arranged directly below the valve cover (15), the lower end of the valve stem (16) is movably connected to a valve core (17), and the valve The outer surface of the body (11) is movably connected to the regulating valve (18), and the anti-vibration component (2) includes a spring A (21), the lower end of the spring A (21) is movably connected to the sealing plate (22), a mounting frame (23) is arranged below the sealing plate (22), the upper end of the mounting frame (23) is movably connected to the connecting rod (24), one end of the connecting rod (24) is movably connected to the ring (25), one end of the ring (25) is movably connected to the spring B (26), and the inner surface of the ring (25) is movably connected to the fixing rod (27).

2. The anti-vibration and wear-resistant structure of a hydraulic control valve according to claim 1, characterized in that: The two ends of the control valve body (11) are fixedly connected to flanges (111), and the flanges (111) are provided with mounting holes (112).

3. The anti-vibration and wear-resistant structure of a hydraulic control valve according to claim 1, characterized in that: The inner surface of the control valve body (11) is fixedly connected to a fixing block (113), two groups of fixing blocks (113) are provided, and each group is provided with two fixing blocks (113), and both ends of the fixing rod (27) are movably connected to the fixing blocks (113).

4. The anti-vibration and wear-resistant structure of a hydraulic control valve according to claim 1, characterized in that: The baffle plate (12) is provided with a through hole (121).

5. The anti-vibration and wear-resistant structure of a hydraulic control valve according to claim 1, characterized in that: The upper end of the valve cover (15) is movably connected to the connecting column (151), the upper end of the connecting column (151) is fixedly connected to the lifting ring (152), and the lower end of the connecting column (151) is provided with a threaded groove A (153).

6. The anti-vibration and wear-resistant structure of a hydraulic control valve according to claim 1, characterized in that: A thread groove B (161) is formed at the lower end of the valve stem (16), and a nut (162) is threadedly connected to the outer surface of the thread groove B (161).

7. The anti-vibration and wear-resistant structure of a hydraulic control valve according to claim 1, characterized in that: The input end of the regulating valve (18) is movably connected to the control valve body (11), the output end of the regulating valve (18) is movably connected to the valve cover (15), and an adjusting knob (181) is provided at the upper end of the regulating valve (18).

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