Cylinder-piston three-way valve

Abstract

The utility model relates to valve technical field, concretely is a cylinder piston formula three -way valve, including cylinder main part, the cylinder main part adopts oil cylinder pipe material preparation, and the cylinder main part outside welding has the inlet and cylinder main part inside intercommunication, the outside of cylinder main part is located the position welding of inlet both sides discharge port and cylinder main part inside intercommunication, both ends of cylinder main part all are provided with the plug for the cylinder main part both ends opening seal, the cylinder main part inside swing joint has three -in -one piston piece, three -in -one piston piece includes piston rod, and the outside middle position fixed connection of piston rod has piston board no.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically a three-way valve for conveying fluid materials. It is particularly suitable for handling fluid media containing particulate matter (such as a mixture of coal slag and water in coal mine production), solving problems such as jamming and leakage, and realizing unattended operation and intelligent control. Background Technology

[0002] Three-way valves are widely used for flow control in fluid material transportation processes. A conventional three-way valve has one inlet and two outlets, and the flow direction, discharge rate, and timing are controlled by installing flow-diverting devices (such as flap or spherical structures) at the inlet and outlet ports. While this type of valve technology is mature, it has limitations:

[0003] When handling special media containing particulate matter (such as a mixture of coal slag and water), the particulate matter can easily get stuck in flap valves or ball valves, causing the valves to fail to reset, resulting in leakage and malfunction.

[0004] In harsh environments such as underground coal mines, equipment failure rates are high, increasing maintenance costs and labor intensity, and impacting production efficiency and safety. Therefore, there is an urgent need for a new type of three-way valve that can resist particulate matter jamming, improve reliability, and support intelligent operation. Utility Model Content

[0005] This invention aims to solve the problems of jamming, leakage, and malfunction of three-way valves in the conveying of particulate matter. Through a cylinder-piston design, it achieves high reliability and low failure rate operation of the valve, reduces labor intensity, supports unattended operation and intelligent control, and is particularly suitable for special environments such as underground coal mines.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cylinder piston type three-way valve, including a cylinder body, the cylinder body being made of hydraulic cylinder tubing, and an inlet welded to the outside of the cylinder body communicating with the inside of the cylinder body; an outlet welded to the outside of the cylinder body on both sides of the inlet communicating with the inside of the cylinder body; plugs provided at both ends of the cylinder body for sealing the openings at both ends of the cylinder body; and a three-piece piston assembly movably connected inside the cylinder body.

[0007] The triple piston assembly includes a piston rod, and a piston plate two is fixedly connected to the outer middle position of the piston rod. Both ends of the piston rod are fixedly connected to piston plates one.

[0008] A sealing ring is fitted around the outside of the first piston plate, and an anti-fouling ring is fitted around the middle of the outside of the second piston plate. Oil rings are provided on both sides of the anti-fouling ring, and the oil rings are fitted and fixed to the second piston plate.

[0009] Preferably, the cylinder body is made of 27SiMn material using cylinder tubing, with a length of approximately 650mm, an inner diameter of 120mm, and a wall thickness of 10mm.

[0010] Preferably, the cylinder body is made of hydraulic cylinder tubing, and 100mm diameter round holes are machined in the center and on both sides of the tubing. The holes are at 90° to the baseline and the center distance is 120mm. These holes are used for welding and connecting the inlet and outlet pipe fittings, respectively.

[0011] Preferably, the three pistons in the triplet piston assembly have a diameter of Φ120-0.8 and a length of 30mm. The piston rod is made of stainless steel and is 425mm long. They are connected as a whole to ensure concentricity and perpendicularity.

[0012] Preferably, sealing grooves with a depth of 4mm and a width of 8mm are opened on the three pistons, and special sealing rings and anti-fouling rings are installed.

[0013] Preferably, both plugs are equipped with air pipes, and the other end of the air pipes is connected to a solenoid valve, with the extension of the air pipe inside the solenoid valve connected to an external air pump device.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This application completely solves the problems of jamming, leakage and functional failure of three-way valves in the conveying of particulate matter. It has a simple and reliable structure, is suitable for high particulate environments (such as underground coal mines), reduces the failure rate and improves production efficiency. At the same time, it is easy to realize intelligent management and remote monitoring through pneumatic solenoid valve control, and reduces the labor intensity of workers. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an overall structural view of the present invention;

[0018] Figure 2 This is a partial sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a structural view of the triple piston assembly of this utility model;

[0020] Figure 4 This is a structural view of the piston plate of this utility model;

[0021] Figure 5 This is a structural view of the piston plate II of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Cylinder body; 2. Inlet; 3. Outlet; 4. Plug; 5. Air pipe; 6. Solenoid valve; 7. Triple piston assembly; 71. Piston rod; 72. Piston plate one; 73. Piston plate two; 74. Sealing ring; 75. Oil ring; 76. Anti-fouling ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution:

[0026] A cylinder piston type three-way valve includes a cylinder body 1, which is made of hydraulic cylinder tubing. An inlet 2 is welded to the outside of the cylinder body 1 and communicates with the inside of the cylinder body 1. An outlet 3 is welded to the outside of the cylinder body 1 on both sides of the inlet 2 and communicates with the inside of the cylinder body 1. Plugs 4 are provided at both ends of the cylinder body 1 to seal the openings at both ends of the cylinder body 1. A triple piston component 7 is movably connected inside the cylinder body 1.

[0027] The triple piston assembly 7 includes a piston rod 71, and a piston plate 73 is fixedly connected to the outer middle position of the piston rod 71. Both ends of the piston rod 71 are fixedly connected to piston plates 72.

[0028] A sealing ring 74 is fitted around the outside of the piston plate 72, and an anti-fouling ring 76 is fitted around the middle of the outside of the piston plate 73. Oil rings 75 are provided on both sides of the anti-fouling ring 76, and the oil rings 75 are fitted and fixed to the piston plate 73.

[0029] Specifically, the cylinder body 1 is made of 27SiMn material using cylinder tubing, with a length of approximately 650mm, an inner diameter of 120mm, and a wall thickness of 10mm.

[0030] Specifically, the cylinder body 1 is made of hydraulic cylinder tubing, and 100mm diameter round holes are machined in the center and on both sides of the tubing. The holes are at 90° to the baseline and the center distance is 120mm. These holes are used for welding and connecting the inlet 2 and outlet 3 of the tubing.

[0031] Specifically, the three pistons in the triplet piston assembly 7 have a diameter of Φ120-0.8 and a length of 30mm. The piston rod 71 is made of stainless steel and is 425mm long. They are connected as a whole to ensure concentricity and perpendicularity.

[0032] Specifically, sealing grooves with a depth of 4mm and a width of 8mm are made on the three pistons, and special sealing rings 74 and anti-fouling rings 76 are installed.

[0033] Specifically, each of the two plugs 4 is equipped with an air pipe 5, and the other end of the air pipe 5 is connected to a solenoid valve 6. The extension of the air pipe 5 inside the solenoid valve 6 is connected to an external air pump device.

[0034] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0035] Cylinder block preparation:

[0036] Take the cylinder tube (27SiMn material, 650mm long, Φ120mm inner hole, 10mm wall thickness), drill a Φ100mm round hole in the center, and drill a Φ100mm hole on each side (the center distance between the holes is 120mm, and they are at 90° with the baseline).

[0037] External threads are machined at both ends of the pipe, and internal threaded end caps (caps) are made. A Φ20 threaded hole is drilled in the center of the end cap for connection.

[0038] A feed pipe with a diameter of 108mm is welded at the opening of the pipe.

[0039] Triple piston machining:

[0040] Three pistons (diameter Φ120-0.8, length 30mm) were machined and connected with a stainless steel rod (length 425mm) to ensure concentricity and perpendicularity.

[0041] A sealing groove (4mm deep, 8mm wide) is machined on the piston, and a special sealing ring 74 is installed.

[0042] Valve assembly:

[0043] The triple piston assembly is installed into the pipe and the plug cap is sealed to form the main body of the cylinder piston type three-way valve.

[0044] Securely fasten both ends of the valve with 1:12mm pneumatic anchors, and connect to the pneumatic three-way solenoid valve 6 (see...). Figure 3 (As shown).

[0045] The solenoid valve 6 is connected to both ends of the cylinder by air pipes 5 (air pipes 51 and 52), and the airflow is controlled to move the piston, so as to realize the connection and switching between the feed port and the discharge port 31 or the discharge port 32.

[0046] Operation and intelligence:

[0047] When energized, solenoid valve 6 controls the airflow direction, driving the piston to move within the cylinder, thereby changing the material flow direction.

[0048] This system supports automated control, enabling unattended operation and is suitable for environments such as underground coal mines.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cylinder piston type three-way valve, comprising a cylinder body (1), characterized in that: The cylinder body (1) is made of hydraulic cylinder tubing, and the cylinder body (1) has an inlet (2) welded to the outside of the cylinder body (1) to communicate with the inside of the cylinder body (1). The cylinder body (1) has an outlet (3) welded to the outside of the cylinder body (1) on both sides of the inlet (2) to communicate with the inside of the cylinder body (1). The cylinder body (1) has plugs (4) at both ends to seal the openings at both ends of the cylinder body (1). The cylinder body (1) has a three-piece piston (7) movably connected inside. The triple piston assembly (7) includes a piston rod (71), and a piston plate two (73) is fixedly connected to the outer middle position of the piston rod (71), and piston plates one (72) are fixedly connected to both ends of the piston rod (71). A sealing ring (74) is fitted on the outside of the piston plate one (72), and a dirt-proof ring (76) is fitted on the middle position of the outside of the piston plate two (73). Oil rings (75) are provided on both sides of the dirt-proof ring (76), and the oil rings (75) are fitted and fixed to the piston plate two (73).

2. The cylinder piston type three-way valve according to claim 1, characterized in that: The cylinder body is made of hydraulic cylinder tubing (1) with a material of 27SiMn, a length of about 650mm, an inner diameter of 120mm, and a wall thickness of 10mm.

3. A cylinder piston type three-way valve according to claim 1, characterized in that: The cylinder body is prepared using hydraulic cylinder tubing (1). 100mm diameter round holes are machined in the center and on both sides of the tubing. The holes are at 90° to the baseline and the center distance is 120mm. They are used for welding and connecting the inlet (2) and outlet (3) of the tubing.

4. A cylinder piston type three-way valve according to claim 1, characterized in that: The three pistons in the triple piston assembly (7) have a diameter of Φ120-0.8 and a length of 30mm. The piston rod (71) is made of stainless steel and is 425mm long. They are connected as a whole to ensure concentricity and perpendicularity.

5. A cylinder piston type three-way valve according to claim 1, characterized in that: A sealing groove with a depth of 4mm and a width of 8mm is made on the three pistons, and a special sealing ring (74) and a dirt-proof ring (76) are installed.

6. A cylinder piston type three-way valve according to claim 1, characterized in that: Both plugs (4) are equipped with air pipes (5), and the other end of the air pipes (5) is connected to a solenoid valve (6). The extension of the air pipe (5) inside the solenoid valve (6) is connected to an external air pump device.

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