Reversing valve device for powder

Abstract

The utility model relates to the technical field of reversing valves, and particularly discloses a reversing valve device for powder, which comprises a central pipe communicated with a plurality of inlet and outlet pipes. A hole is formed in the central pipe and is rotationally connected with a plug column; the plug column is rotationally sleeved with a sealing cover; a passing groove communicated with the two inlet and outlet pipes is formed in the plug column; the plug column is fixedly connected with a quadrangular prism; the quadrangular prism is sleeved with a stress application handle; a plurality of inlet and outlet pipes are externally connected with a powder conveying pipeline, when the conveying pipeline needs to be switched, a force applying handle is held to drive a quadrangular prism and a plug column to move from one end of a limiting indication groove to the other end of the limiting indication groove, so that a passing groove is rotated to be communicated with a pipeline on the other side from the pipeline on one side, and the pipeline switching is achieved; high-precision tangency of the central pipe can be achieved, the function of moving and switching pipelines in the shortest distance is achieved, dead corners of the cylindrical surface are few, and rotation of the plug column cannot be hindered.

Description

Technical Field

[0001] This utility model relates to the field of reversing valve technology, specifically a reversing valve device for powder materials. Background Technology

[0002] A directional control valve is a valve with two or more flow patterns and two or more ports; it is used to control the flow of hydraulic oil, including opening, closing, and reversing, 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 valve body. There are two types: rotary valve and spool valve.

[0003] Chinese utility model patent CN220185908U, published on December 15, 2023, discloses a powder reversing valve, specifically a novel powder reversing valve. It includes a housing assembly, a pipe assembly, and a valve body assembly. The three pipe assemblies are bolted to the outside of the housing assembly, while the valve body assembly is mounted inside the housing assembly via bearings. The pipe assembly includes a pipe body, a heating jacket, and a flange. The flange is integrally formed at the bottom of the pipe body, and the heating jacket is bolted to the outer wall of the pipe body. The housing assembly includes two housings, one of which has an integrally formed base on one outer wall. The heating jacket of this utility model activates when the valve is used for material conveying, heating the pipe body and thus the powder. This heats the powder, causing it to dry out if it is stuck together due to high moisture content, and then pulverize it under conveying pressure. This facilitates the passage of the powder through the reversing valve. The electric roller is then activated, causing the synchronous belt to rotate, carrying the powder within the housing and reducing the likelihood of powder blockage.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: In the existing technology of reversing valves for powder use, the cross-sectional area of ​​the channel inside the reversing valve is much different from that of the pipeline channel. As a result, when the powder passes through the reversing valve, the change in cross-sectional area causes the speed to increase, impacting the reversing valve and causing it to be subjected to greater vibration and wear. This makes it easy for the powder to fill the gaps and cause blockage. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem of existing directional valves used for powder applications, where the cross-sectional area of ​​the internal channel of the directional valve differs greatly from that of the pipeline. This difference causes the powder to increase its speed when passing through the directional valve due to the change in cross-sectional area, resulting in greater impact on the directional valve and causing it to be subjected to greater vibration and wear. Consequently, the directional valve is prone to clogging due to the filling of gaps with powder. The invention provides a directional valve device for powder applications.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The present invention discloses a reversing valve device for powder materials, comprising a central pipe connecting multiple inlet and outlet pipes; a plug is rotatably connected to an opening in the central pipe; a sealing cover is rotatably sleeved on the plug; a passage groove is provided on the plug connecting two inlet and outlet pipes; a quadrangular prism is fixedly connected to the plug; a force-applying handle is sleeved on the quadrangular prism; and limit indicator grooves are provided on the sealing cover at two passage switches corresponding to the force-applying handle.

[0008] Furthermore, a bearing is provided between the plunger and the shroud to reduce rotational friction.

[0009] Furthermore, a second fastener is threadedly connected to the upper end of the quadrangular prism; a limiting seat is sleeved on the second fastener.

[0010] The reversing valve device for powder applications provided by this utility model has the following beneficial effects:

[0011] 1. This utility model connects multiple inlet and outlet pipes to externally transport powder materials. When it is necessary to switch the transport pipe, the force handle is held to move the four-sided prism and the plug from one end of the limit indicator groove to the other end, so that the passage groove rotates from the pipe connected to one side to the pipe connected to the other side, thereby realizing the switching of the pipe. Since the plug is cylindrical, it can achieve high-precision tangency of the central pipe and realize the function of switching the pipe with the shortest distance. Moreover, the cylindrical surface has few dead corners and will not hinder the rotation of the plug.

[0012] 2. This utility model reduces the rotational resistance of the plunger by using bearings, thereby achieving higher precision in rotational connection and preventing powder penetration; the limiting seat restricts the movement of the force-applying handle on the quadrangular prism, thus preventing the possibility of disengagement when rotating the force-applying handle. Attached Figure Description

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the third isometric structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fourth isometric structure of this utility model;

[0018] Figure 5 This is a top view cross-sectional structural diagram of the present invention.

[0019] The following are the labels in the diagram: 1. Central tube; 2. Inlet / outlet tube; 3. Flange; 4. First fastener; 5. Enclosure; 6. Plug; 7. Passage groove; 8. Prism; 9. Bearing; 10. Second fastener; 11. Limit seat; 12. Force handle; 13. Grip; 14. Limit indicator groove. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0023] Please see Figure 1-5 As shown, a reversing valve device for powder includes a central pipe 1 connecting multiple inlet and outlet pipes 2; a plug 6 is rotatably connected to an opening in the central pipe 1; a sealing cover 5 is rotatably sleeved on the plug 6; a passage groove 7 is opened on the plug 6 connecting two inlet and outlet pipes 2; a quadrangular prism 8 is fixedly connected to the plug 6; a force-applying handle 12 is sleeved on the quadrangular prism 8; and limit indicator grooves 14 are opened on the sealing cover 5 at two passage switches corresponding to the force-applying handle 12. By connecting multiple inlet and outlet pipes 2 to external pipes for conveying powder, when it is necessary to switch the conveying pipe, the force-applying handle 12 is held to move the quadrangular prism 8 and the plug 6 from one end of the limit indicator groove 14 to the other end, so that the passage groove 7 rotates from the pipe connected to one side to the pipe connected to the other side, thereby realizing the switching of the pipe. Since the plug 6 is cylindrical, it can achieve high-precision tangency to the central pipe 1 and realize the function of switching the pipe by moving the shortest distance. Moreover, the cylindrical surface has few dead angles and will not hinder the rotation of the plug 6.

[0024] A bearing 9 is provided between the plunger 6 and the enclosure 5 to reduce rotational friction. The bearing 9 reduces the rotational resistance of the plunger 6, thereby achieving higher precision rotational connection and preventing powder penetration.

[0025] The upper end of the quadrangular prism 8 is threaded with a second fastener 10; a limiting seat 11 is sleeved on the second fastener 10, which restricts the movement of the force-applying handle 12 on the quadrangular prism 8, so that it will not disengage when the force-applying handle 12 is rotated.

[0026] The end of the lever 12 has an opening into which a handle 13 is inserted. By gripping the handle 13, the lever can be rotated, making it more comfortable and effortless, and allowing for faster switching of the powder movement direction.

[0027] A flange 3 is fixedly connected to the end of the inlet / outlet pipe 2; the flange 3 has multiple through holes for connecting and fixing the powder pipe. By using fasteners through the through holes, the powder pipe can be sealed and connected to the inlet / outlet pipe 2 through the flange 3.

[0028] Multiple first fasteners 4 are inserted into the openings on the enclosure 5; the first fasteners 4 are threaded to both sides of the central tube 1, and the central tube 1 and the enclosure 5 are connected by the first fasteners 4, so that the connection strength of the enclosure 5 is higher and the sealing performance is better.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A diverter valve apparatus for use with a powder material, characterized by; The utility model provides a center tube (1) that includes a plurality of access tubes (2), a plug post (6) is rotatably connected in the center tube (1), a closure cover (5) is rotatably sleeved on the plug post (6), a pass-through slot (7) is formed on the plug post (6) and is connected with two access tubes (2), a quadrangular prism (8) is fixedly connected to the plug post (6), a force applying handle (12) is sleeved on the quadrangular prism (8), and a limiting indication slot (14) is formed on the closure cover (5) and corresponds to the two passageways of the force applying handle (12).

2. A diverter valve arrangement for use with a powder according to claim 1, characterised in that: A bearing (9) is arranged between the plug post (6) and the closure cover (5) to reduce the rotating friction.

3. The diverter valve arrangement for powder use according to claim 1, characterized in that: A second fastener (10) is screw-connected to the upper end of the quadrangular prism (8), and a limiting seat (11) is sleeved on the second fastener (10).

4. The diverter valve arrangement for powder use according to claim 1, characterized by: A handle (13) is inserted into the end of the force applying handle (12).

5. The diverter valve apparatus for use with a powder according to claim 1, wherein: A flange (3) is fixedly connected to the end of the access tube (2), and a plurality of through holes for connecting and fixing a powder pipeline are formed on the flange (3).

6. The diverter valve arrangement for powder use according to claim 1, characterized by: A plurality of first fasteners (4) are inserted into the closure cover (5), and the first fasteners (4) are screw-connected to the two sides of the center tube (1).

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