Pressure-adjustable automatic reversing valve

Abstract

The utility model belongs to the technical field of reversing valves, and particularly relates to a pressure-adjustable automatic reversing valve which comprises a valve body, a rotating motor fixedly installed at one end of the valve body, a threaded rod arranged at one end of the rotating motor, a valve cavity formed in the valve body, a piston valve element arranged in the valve cavity, a threaded hole formed in one end of the piston valve element, and a groove formed in the outer side of the piston valve element. An oil return opening is formed in the bottom of the valve body, an inlet is formed in the valve body, and a first outlet is formed in one side of the inlet. The piston valve element is in sliding connection with the valve cavity, the piston valve element is provided with the two grooves, meanwhile, the rotating motor, the threaded rod and the threaded hole are matched for use, the rotating motor is driven to work, the threaded rod can be rotated to drive the piston valve element to conduct threaded sliding adjustment, and the piston valve element can conveniently move left and right; the inlet, the first outlet and the second outlet can be opened and closed, the flowing direction of a medium can be conveniently cut off, distributed and changed, the effect of changing a liquid flowing channel is achieved, and operation and use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing valves, in particular to an automatic reversing valve with adjustable pressure. Background Art

[0002] The reversing valve is a kind of valve with multi-directional adjustable channels, which can change the flow direction of the fluid in time. The manual reversing valve drives the valve core to move or rotate in the valve body by turning the valve handle, so that the corresponding channel is opened or closed, thereby realizing the flow direction control of the fluid. Due to the safety and reliability of the reversing valve, it is widely used in the fields of petroleum, chemical industry, etc. to change the flow direction of gas or liquid. The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. It is a directional control valve that relies on the relative movement of the valve core and the valve body. There are two types: rotary valve type and slide valve type. According to the number of working positions where the valve core stays in the valve body, it is divided into two-position and three-position; according to the number of oil circuits connected to the valve body, it is divided into two-way, three-way, four-way and six-way. The ways to operate the movement of the valve core include manual, motorized, electric, hydraulic, electro-hydraulic and other types. The reversing valve is mainly used in pipelines to cut off, distribute and change the flow direction of the medium to quickly change the flow path of the liquid. It has the advantages of simple structure, small size, light weight, tight and reliable, good sealing, etc. It is widely used in petroleum, chemical industry, urban water supply and drainage and other working conditions that require strict cutting.

[0003] The prior art has the following problems:

[0004] The existing reversing valve has a relatively simple overall device structure and a relatively single structural functionality. It is not convenient to perform automatic reversing adjustment during use and generally requires manual operation, which makes the work and use more troublesome and inconvenient for better work use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an adjustable pressure automatic reversing valve, which solves the problems that the overall device structure is relatively simple, the structural functionality is relatively single, and it is inconvenient to perform automatic reversing adjustment during use. Manual operation is generally required, which makes the work and use more troublesome and inconvenient for better work use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable pressure automatic reversing valve, comprising a valve body, a rotating motor is fixedly mounted on one end of the valve body, a threaded rod is arranged at one end of the rotating motor, a valve cavity is arranged inside the valve body, a piston valve core is arranged inside the valve cavity, a threaded hole is arranged at one end of the piston valve core, a groove is arranged on the outer side of the piston valve core, an oil return port is arranged at the bottom of the valve body, an inlet is arranged on the valve body, a first outlet is arranged on one side of the inlet, and a second outlet is arranged on the other side of the inlet.

[0007] As a preferred technical solution of the utility model, a wire is provided inside the rotating motor, and the rotating motor is electrically connected to an external power source through the wire.

[0008] As a preferred technical solution of the utility model, the outer diameter of the threaded rod is matched with the inner diameter of the threaded hole, and the threaded rod is threadedly rotatably connected to the threaded hole.

[0009] As a preferred technical solution of the utility model, the outer diameter of the piston valve core is matched with the inner diameter of the valve cavity, and the piston valve core is slidably connected to the valve cavity.

[0010] As a preferred technical solution of the utility model, two grooves are provided, and the grooves are symmetrically distributed on the piston valve core.

[0011] As a preferred technical solution of the utility model, two oil return ports are provided, and the oil return ports are symmetrically distributed at the bottom of the valve body.

[0012] As a preferred technical solution of the utility model, the first outlet and the second outlet are symmetrically distributed on both sides of the inlet.

[0013] Compared with the prior art, the utility model provides a pressure-adjustable automatic reversing valve having the following features:

[0014] Beneficial effects:

[0015] The adjustable pressure automatic reversing valve is provided with a piston valve core and a valve cavity sliding connection. The piston valve core is provided with two grooves. A rotating motor, a threaded rod and a threaded hole are provided for coordinated use. The rotating motor is driven to work. The rotatable threaded rod drives the piston valve core to perform threaded sliding adjustment, which is convenient for moving it left and right, and convenient for opening and closing the inlet, the first outlet and the second outlet. It is convenient to cut off, distribute and change the flow direction of the medium to quickly change the flow channel of the liquid. The operation is convenient and the reversing adjustment can be automatically performed, which is convenient for better work and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the front structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the piston valve core structure of the utility model.

[0020] In the figure: 1. valve body; 2. rotating motor; 3. threaded rod; 4. valve chamber; 5. piston valve core; 6. threaded hole; 7. groove; 8. oil return port; 9. inlet; 10. first outlet; 11. second outlet. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 In this embodiment: an adjustable pressure automatic reversing valve comprises a valve body 1, a rotating motor 2 is fixedly mounted at one end of the valve body 1 to facilitate the rotation of the threaded rod 3, a threaded rod 3 is arranged at one end of the rotating motor 2 to facilitate the connection of the threaded hole 6, a valve cavity 4 is arranged inside the valve body 1 to facilitate the installation of a piston valve core 5, a piston valve core 5 is arranged inside the valve cavity 4 to facilitate the adjustment of the reversing, a threaded hole 6 is arranged at one end of the piston valve core 5 to facilitate the connection of the threaded rod 3, a groove 7 is arranged on the outside of the piston valve core 5 to facilitate the opening and closing of the inlet 9 and the outlet, an oil return port 8 is arranged at the bottom of the valve body 1 to facilitate the oil return work, an inlet 9 is arranged on the valve body 1, a first outlet 10 is arranged on one side of the inlet 9, and a second outlet 11 is arranged on the other side of the inlet 9.

[0023] In this embodiment, a wire is provided inside the rotating motor 2, and the rotating motor 2 is electrically connected to an external power supply through the wire, so as to facilitate driving it to work and rotating the threaded rod 3; the outer diameter of the threaded rod 3 is matched with the inner diameter of the threaded hole 6, and the threaded rod 3 is threadedly connected to the threaded hole 6, so as to facilitate threaded rotation connection and movable adjustment of the piston valve core 5; the outer diameter of the piston valve core 5 is matched with the inner diameter of the valve cavity 4, and the piston valve core 5 is slidably connected to the valve cavity 4, so as to facilitate movable adjustment thereof, and to facilitate cutting off, distributing and changing the flow direction of the medium; two grooves 7 are provided, and the grooves 7 are symmetrically distributed on the piston valve core 5, so as to facilitate opening and closing the inlet 9, the first outlet 10 and the second outlet 11, so as to facilitate working use; two oil return ports 8 are provided, and the oil return ports 8 are symmetrically distributed at the bottom of the valve body 1, so as to facilitate rapid oil return and improve working use effect; the first outlet 10 and the second outlet 11 are symmetrically distributed on both sides of the inlet 9, so as to facilitate distribution and change the flow direction of the medium and quickly play the role of changing the flow channel of the liquid.

[0024] The working principle and use process of the utility model are as follows: the operator sets the piston valve core 5 to be slidably connected with the valve cavity 4, and two grooves 7 are set on the piston valve core 5. At the same time, a rotating motor 2, a threaded rod 3 and a threaded hole 6 are set for coordinated use. By driving the rotating motor 2 to work, the threaded rod 3 can be rotated to drive the piston valve core 5 to perform threaded sliding adjustment, so that it is convenient to move it left and right, and it is convenient to open and close the inlet 9, the first outlet 10 and the second outlet 11, and it is convenient to cut off, distribute and change the flow direction of the medium to quickly change the flow channel of the liquid. It is convenient to operate and use, and can automatically perform reversing adjustment, which is convenient for better work and use.

[0025] 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. An adjustable pressure automatic reversing valve, comprising a valve body (1), characterized in that: A rotating motor (2) is fixedly mounted on one end of the valve body (1), a threaded rod (3) is provided at one end of the rotating motor (2), a valve cavity (4) is provided inside the valve body (1), a piston valve core (5) is provided inside the valve cavity (4), a threaded hole (6) is provided at one end of the piston valve core (5), a groove (7) is provided on the outer side of the piston valve core (5), an oil return port (8) is provided at the bottom of the valve body (1), an inlet (9) is provided on the valve body (1), a first outlet (10) is provided on one side of the inlet (9), and a second outlet (11) is provided on the other side of the inlet (9).

2. The pressure-adjustable automatic reversing valve according to claim 1, characterized in that: A conductive wire is arranged inside the rotating motor (2), and the rotating motor (2) is electrically connected to an external power source via the conductive wire.

3. The pressure-adjustable automatic reversing valve according to claim 1, characterized in that: The outer diameter of the threaded rod (3) is matched to the inner diameter of the threaded hole (6), and the threaded rod (3) is threadedly rotatably connected to the threaded hole (6).

4. The pressure-adjustable automatic reversing valve according to claim 1, characterized in that: The outer diameter of the piston valve core (5) is matched to the inner diameter of the valve cavity (4), and the piston valve core (5) is slidably connected to the valve cavity (4).

5. The pressure-adjustable automatic reversing valve according to claim 1, characterized in that: Two grooves (7) are provided, and the grooves (7) are symmetrically distributed on the piston valve core (5).

6. The pressure-adjustable automatic reversing valve according to claim 1, characterized in that: Two oil return ports (8) are provided, and the oil return ports (8) are symmetrically distributed at the bottom of the valve body (1).

7. The pressure-adjustable automatic reversing valve according to claim 1, characterized in that: The first outlet (10) and the second outlet (11) are symmetrically distributed on both sides of the inlet (9).

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