Hydraulic oil valve structure

Abstract

The utility model discloses a hydraulic oil valve structure which comprises a valve body, an oil inlet is formed in one side of the bottom of the valve body, an oil outlet is formed in the other side of the bottom of the valve body, a contraction groove is formed in the top of the oil outlet, a piston is arranged in the contraction groove, a telescopic rod is arranged on the top of the contraction groove, and an electric heater is arranged between the oil inlet and the oil outlet. A temperature sensor is arranged at the top of the oil inlet, a power control box is arranged on one side of the top of the valve body, an inflator pump is arranged in the power control box, a plurality of sealing rings are arranged on one side of the piston, an air bag is arranged between the sealing rings, an inflation pipe is arranged at the top of the piston and connected with an inflator pump valve, the oil inlet is communicated with the oil outlet, and the contraction groove is communicated with the oil outlet. The piston is connected with the shrinkage groove in a sleeved mode and movably connected with the oil outlet. The electric heater is used for carrying out auxiliary heat treatment on the interior of the valve body to prevent the interior from being frozen, the air bag is inflated through the inflator pump to be sealed and extruded, the auxiliary heating anti-freezing effect is achieved, and the inflation sealing characteristic is also achieved.

Description

Technical Field

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

[0002] In recent years, most areas of my country have begun to promote the use of hydraulic reversible plows. The use of reversible plows for tillage and tillage has the advantages of no opening and closing of ridges, high production efficiency, and energy saving. The hydraulic reversible plow uses the hydraulic system of the tractor to control the alternating operation of the left and right plow bodies to achieve the purpose of no opening and closing of ridges. The hydraulic oil valve is an automated device that controls the switch operation of the pressure oil. When the hydraulic reversible plow of agricultural machinery is working, the switch control of the pressure oil is mainly carried out through the hydraulic oil valve.

[0003] However, agricultural machinery is generally parked outdoors. When used in winter, the hydraulic oil in the hydraulic oil valve will freeze, freezing the piston and affecting the normal switching of the hydraulic oil. In addition, the sealing ring of the hydraulic oil valve will deform after long-term use, which makes it easy to leak oil and cannot be treated to prevent oil leakage. This application proposes a hydraulic oil valve structure to solve this problem.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a hydraulic oil valve structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a hydraulic oil valve structure, including a valve body, an oil inlet is provided on one side of the bottom of the valve body, an oil outlet is provided on the other side of the bottom of the valve body, a contraction groove is provided on the top of the oil outlet, a piston is provided in the contraction groove, a telescopic rod is provided on the top of the contraction groove, an electric heater is provided between the oil inlet and the oil outlet, a temperature sensor is provided on the top of the oil inlet, an electrical control box is provided on one side of the top of the valve body, an air pump is provided inside the electrical control box, a plurality of sealing rings are provided on one side of the piston, air bags are provided between the sealing rings, an air filling pipe is provided on the top of the piston, and the air filling pipe is connected to the air filling pump valve.

[0007] Preferably, the oil inlet is communicated with the oil outlet, the contraction groove is communicated with the oil outlet, the piston is sleeved with the contraction groove, and the piston is movably connected with the oil outlet.

[0008] Preferably, the telescopic rod is fixedly connected to the valve body by bolts, and the piston is fixedly connected to the telescopic rod by bolts.

[0009] Preferably, the sealing ring is fixedly connected to the piston bolt, and the airbag is fixedly connected to the piston bolt.

[0010] Preferably, the inflation tube is connected to the airbag pipeline, the inflation tube is fixedly connected to the piston bolt, and the inflation pump is fixedly connected to the control box bolt.

[0011] Preferably, the temperature sensor is fixedly connected to the valve body with bolts, and the electric heater is fixedly connected to the valve body with bolts.

[0012] Preferably, the electrical control box is fixedly connected to the valve body with bolts, a power connector is provided inside the electrical control box, a controller is provided on the top of the power connector, the power connector is connected to an external power supply, and the controller is respectively connected to the power connector, telescopic rod, air pump, temperature sensor and electric heater wires.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is a hydraulic oil valve structure, which is provided with a valve body, a telescopic rod, a piston, an electric heater, a temperature sensor and an electric control box. The telescopic rod drives the piston to move telescopically, thereby controlling the hydraulic oil switch. The temperature in the connecting channel between the oil inlet and the oil outlet is detected in real time by the temperature sensor. When the temperature is low, the inner wall of the oil inlet and the oil outlet is heated by the electric heater to prevent the hydraulic oil in the valve body from freezing and affecting the normal switching of the piston, thereby playing the role of auxiliary heating and anti-icing.

[0015] 2. The utility model is a hydraulic oil valve structure, which is provided with an air bag, an air filling tube and an air pump. The air bag is installed on the outside of the piston. The air bag can be inflated through the air filling pump and the air filling tube, so that the air bag bulges and squeezes the inner wall of the oil outlet, thereby performing sealing work to prevent oil leakage and facilitate inflation and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a hydraulic oil valve structure according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of a hydraulic oil valve structure according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a piston in a hydraulic oil valve structure according to an embodiment of the utility model.

[0020] Reference numerals: 1, valve body; 2, oil inlet; 3, oil outlet; 4, contraction groove; 5, piston; 6,

[0021] Sealing ring; 7.

[0022] Airbag; 8. Inflation tube; 9. Telescopic rod; 10. Electric heater; 11. Electrical control box; 12. Temperature sensor; 13. Inflation pump; 14. Power connector; 15. Controller. DETAILED DESCRIPTION

[0023] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0024] See also Figure 1-3 A hydraulic oil valve structure according to an embodiment of the utility model comprises a valve body 1, an oil inlet 2 is arranged on one side of the bottom of the valve body 1, an oil outlet 3 is arranged on the other side of the bottom of the valve body 1, a contraction groove 4 is arranged on the top of the oil outlet 3, a piston 5 is arranged in the contraction groove 4, a telescopic rod 9 is arranged on the top of the contraction groove 4, an electric heater 10 is arranged between the oil inlet 2 and the oil outlet 3, a temperature sensor 12 is arranged on the top of the oil inlet 2, an electric control box 11 is arranged on one side of the top of the valve body 1, an air pump 13 is arranged inside the electric control box 11, a plurality of sealing rings 6 are arranged on one side of the piston 5, air bags 7 are arranged between the sealing rings 6, an air charging pipe 8 is arranged on the top of the piston 5, and the air charging pipe 8 is connected to the valve of the air charging pump 13. The utility model performs auxiliary heat treatment in the valve body 1 through the electric heater 10 to prevent internal icing, and inflates the air bag 7 through the air charging pump 8 to make the air bag 7 sealed and squeezed, which not only has the effect of auxiliary heat and antifreeze, but also has the characteristics of air charging and sealing.

[0025] According to the above scheme of the utility model, the oil inlet 2 is connected with the oil outlet 3, the contraction groove 4 is connected with the oil outlet 3, the piston 5 is sleeved with the contraction groove 4, the piston 5 is movably connected with the oil outlet 3, the telescopic rod 9 is bolted and fixedly connected with the valve body 1, the piston 5 is bolted and fixedly connected with the telescopic rod 9, the sealing ring 6 is bolted and fixedly connected with the piston 5, the airbag 7 is bolted and fixedly connected with the piston 5, the airbag 7 is composed of a thickened rubber airbag, the inflation tube 8 is bolted and fixedly connected with the piston 5, the inflation pump 13 is bolted and fixedly connected with the control box 11, and through the arrangement of the inflation tube 8 and the inflation pump 13, it is possible to inflate the airbag 7 so that the airbag 7 swells and forms a seal.

[0026] According to the above scheme of the utility model, the temperature sensor 12 is fixedly connected to the valve body 1 by bolts, and the electric heater 10 is fixedly connected to the valve body 1 by bolts. Through the setting of the electric heater 10, auxiliary heat treatment can be performed on the oil inlet 2 and the oil outlet 3 to prevent the hydraulic oil from freezing and freezing the piston 5.

[0027] According to the above scheme of the utility model, the control box 11 is fixedly connected to the valve body 1 by bolts, a power connector 14 is provided inside the control box 11, a controller 15 is provided at the top of the power connector 14, the power connector 14 is connected to an external power supply, the controller 15 is respectively connected to the power connector 14, the telescopic rod 9, the air pump 13, the temperature sensor 12 and the electric heater 10 by wires, and the controller 15 adopts a multi-interface programming controller for connecting multiple devices to control work.

[0028] When in use, the power connector 14 is connected to an external power source, and the controller 15 is used to control the telescopic rod 9 to work. The telescopic rod 9 drives the piston 5 to retract from the oil outlet 3 into the contraction groove 4. At this time, the hydraulic oil enters from the oil inlet 2 and is discharged from the oil outlet 3. When the temperature is low in winter, the temperature sensor 12 is used to detect the temperature in the connection channel between the oil inlet 2 and the oil outlet 3 in real time. When the temperature is detected to be lower than the preset value, the controller 15 is used to control the electric heater 10 to work, and the electric heater 10 heats the inner wall of the oil inlet 2 and the oil outlet 3 to prevent the valve from rupture. The freezing of hydraulic oil in the body 1 affects the normal opening and closing of the piston 5, achieving the effect of auxiliary heating to prevent freezing; the piston 5 is mainly sealed by squeezing the oil outlet 3 with the sealing ring 6, but the sealing ring 6 will be deformed after long-term use, and oil leakage is inevitable. At this time, the air pump 13 can be operated to inflate the air bag 7 with external gas through the inflation pipe 8, so that the air bag 7 bulges and squeezes the inner wall of the oil outlet 3. After the inflation is completed, the valve of the air pump 13 is closed, and the sealing ring 6 is sealed while the air bag 7 squeezes and seals, thereby achieving inflation sealing and oil leakage prevention.

[0029] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 limiting the present invention; 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 an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydraulic oil valve structure, comprising a valve body (1), characterized in that: An oil inlet (2) is provided on one side of the bottom of the valve body (1), an oil outlet (3) is provided on the other side of the bottom of the valve body (1), a contraction groove (4) is provided on the top of the oil outlet (3), a piston (5) is provided in the contraction groove (4), a telescopic rod (9) is provided on the top of the contraction groove (4), an electric heater (10) is provided between the oil inlet (2) and the oil outlet (3), a temperature sensor (12) is provided on the top of the oil inlet (2), an electric control box (11) is provided on one side of the top of the valve body (1), an air pump (13) is provided inside the electric control box (11), a plurality of sealing rings (6) are provided on one side of the piston (5), air bags (7) are provided between the sealing rings (6), an air pipe (8) is provided on the top of the piston (5), and the air pipe (8) is connected to the valve of the air pump (13).

2. A hydraulic oil valve structure according to claim 1, characterized in that: The oil inlet (2) is connected to the oil outlet (3), the contraction groove (4) is connected to the oil outlet (3), the piston (5) is sleeved with the contraction groove (4), and the piston (5) is movably connected to the oil outlet (3).

3. A hydraulic oil valve structure according to claim 2, characterized in that: The telescopic rod (9) is fixedly connected to the valve body (1) by bolts, and the piston (5) is fixedly connected to the telescopic rod (9) by bolts.

4. A hydraulic oil valve structure according to claim 3, characterized in that: The sealing ring (6) is fixedly connected to the piston (5) by bolts, and the air bag (7) is fixedly connected to the piston (5) by bolts.

5. A hydraulic oil valve structure according to claim 4, characterized in that: The inflation tube (8) is connected to the airbag (7) pipeline, the inflation tube (8) is fixedly connected to the piston (5) by bolts, and the inflation pump (13) is fixedly connected to the control box (11) by bolts.

6. A hydraulic oil valve structure according to claim 1, characterized in that: The temperature sensor (12) is fixedly connected to the valve body (1) by bolts, and the electric heater (10) is fixedly connected to the valve body (1) by bolts.

7. A hydraulic oil valve structure according to claim 1, characterized in that: The electrical control box (11) is fixedly connected to the valve body (1) by bolts, a power connector (14) is provided inside the electrical control box (11), a controller (15) is provided at the top of the power connector (14), the power connector (14) is connected to an external power source, and the controller (15) is respectively connected to the power connector (14), the telescopic rod (9), the air pump (13), the temperature sensor (12) and the electric heater (10) by electric wires.

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