Stainless steel internal and external sealing tee joint special for electro-hydraulic control

Abstract

The utility model relates to the field of sealing tee joints, in particular to a special stainless steel internal and external sealing tee joint for electric hydraulic control, which comprises a three-way valve piece, an electric controller, a pressure relief column, a valve body, a left through pipe, a right through pipe, a column body, a driving push rod, a moving block and a cylinder, the left through pipe is mounted on the left side of the three-way valve piece, the right through pipe is mounted on the right side of the three-way valve piece, and the column body is mounted on the upper side of the three-way valve piece. The electric controller is installed on the upper side of the column body, the driving push rod is installed in the electric controller, the movable block is installed on the lower side of the driving push rod and connected with the pressure relief column, the cylinder is installed at the lower end of the pressure relief column, and the valve body is installed at the bottom of the cylinder. Therefore, the sealing performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing tees, specifically to a stainless steel internal and external sealing tee for electro-hydraulic control. Background Technology

[0002] An electro-hydraulic three-way valve is a valve device driven by an electro-hydraulic actuator, mainly used to control the reversal and diversion of material flow. It is widely used in fluid control in industrial sectors such as air conditioning, heating and ventilation, and heat treatment plants. It is suitable for conditions with low bulk density, high abrasiveness, and harsh working environments. Furthermore, electro-hydraulic three-way valves can be customized to meet specific industrial needs. However, existing designs have a simple structure at the valve body junction, relying solely on thrust to control the valve body, resulting in ineffective sealing and leakage. Therefore, those skilled in the art have developed a dedicated electro-hydraulic stainless steel internal and external sealing three-way valve to address the problems mentioned in the background. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a stainless steel internal and external sealing tee for electro-hydraulic control, including a tee valve, an electric controller, a pressure relief column, a valve body, a left-hand pipe, a right-hand pipe, a column, a drive push rod, a moving block, and a cylinder. The left-hand pipe is installed on the left side of the tee valve, and the right-hand pipe is installed on the right side of the tee valve. The column is installed on the upper side of the tee valve, and the electric controller is installed on the upper side of the column. The drive push rod is installed inside the electric controller, and the moving block is installed on the lower side of the drive push rod. The pressure relief column is connected to the moving block, and the cylinder is installed at the lower end of the pressure relief column. The valve body is installed at the bottom of the cylinder.

[0004] Preferably, a valve plate is installed in the middle of the three-way valve, that is, at the junction of the left and right passage pipes. A first passage is provided between the valve plate and the left passage pipe, and a second passage is provided between the valve plate and the right passage pipe.

[0005] Preferably: the inner side wall of the column is provided with a rail groove, a guide post is installed in the rail groove, a No. 1 spring is installed around the bottom outer wall of the guide post, a rail block is installed in the rail groove, the guide post can be inserted through the middle position of the rail block, the rail block is located at the upper end of the No. 1 spring, a connecting plate is installed on the side wall of the rail block, and a moving block is connected to the other end of the connecting plate.

[0006] Preferably, a pressure relief cylinder is installed on the bottom side wall of the pressure relief column, and four slots of the same size are provided on the outer side wall of the pressure relief cylinder. A slidable cylinder is installed inside the pressure relief cylinder, and four protrusions of the same size are installed on the outer side wall of the top of the cylinder. The protrusions can be inserted into the slots.

[0007] Preferably, a second spring is installed between the inner side of the pressure relief cylinder and the cylinder;

[0008] Preferably, a sealing plate is installed at the junction of the cylinder and the valve body, an annular plate is installed at the upper end of the sealing plate, and a rubber liquid pan is installed between the sealing plate and the annular plate;

[0009] Preferably, an arc ring is installed on the outer side wall of the rubber liquid pan.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] 1. When the valve is closed, the electric controller controls the drive push rod to push the moving block, which pushes the pressure relief column downward. When the upper end of the slot of the pressure relief cylinder reaches the protrusion on the outer side of the top of the cylinder, the valve body moves down. When the valve body moves into the No. 2 port, it stops. At this time, no liquid flows out of the right pipe, and the liquid in the left pipe flows into the inside of the three-way valve from the No. 1 port. When the liquid reaches the height of the rubber liquid pan, it flows into the arc ring. Through the flow blocking effect of the arc ring, the liquid gathers in the rubber liquid pan. At this time, the rubber liquid pan is squeezed downward under the pressure of the liquid. When the rubber liquid pan completely covers the No. 1 port and the No. 2 port, the liquid in the left pipe stops flowing inward due to the water pressure difference. Through the sealing effect of the rubber liquid pan, the three-way valve can achieve secondary sealing. Combined with the action of the valve body and the sealing plate, the sealing performance is improved.

[0012] 2. Because the inner wall of the cylinder is provided with a rail groove, a guide post is installed in the rail groove, and a No. 1 spring is installed around the bottom outer wall of the guide post. A No. 2 spring is installed between the inner side of the pressure relief cylinder and the cylinder. Through the buffering effect of the spring, the impact force between the parts can be reduced, and the service life can be increased. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a stainless steel internal and external sealing tee for electro-hydraulic control provided in an embodiment of this application;

[0014] Figure 2 This is a schematic cross-sectional view of the valve closing in a stainless steel internal and external sealing tee for electro-hydraulic control provided in an embodiment of this application;

[0015] Figure 3 This is a schematic cross-sectional view of the valve opening in a stainless steel internal and external sealing tee for electro-hydraulic control, provided in an embodiment of this application.

[0016] Figure 4 This is an exploded structural diagram of a stainless steel internal and external sealing tee for electro-hydraulic control provided in an embodiment of this application;

[0017] Figure 5 This is a schematic diagram of a partial explosion structure in a stainless steel internal and external sealing tee for electro-hydraulic control provided in an embodiment of this application. Figure 1 ;

[0018] Figure 6 This is a schematic diagram of a partial explosion structure in a stainless steel internal and external sealing tee for electro-hydraulic control provided in an embodiment of this application. Figure 2 .

[0019] In the diagram: 1. Three-way valve; 2. Electric controller; 3. Pressure relief column; 4. Valve body; 5. Rubber liquid pan; 6. Guide column; 7. Spring No. 1; 8. Spring No. 2; 9. Valve plate; 101. Left passage pipe; 102. Right passage pipe; 103. Column; 104. Rail groove; 105. Partition plate; 106. Port No. 1; 107. Port No. 2; 201. Drive push rod; 202. Moving block; 203. Connecting plate; 204. Rail block; 301. Pressure relief cylinder; 302. Groove; 401. Sealing plate; 402. Cylindrical; 403. Protruding plate; 404. Ring plate; 501. Arc ring. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] Example

[0022] Please see Figures 1-6 In this embodiment, a stainless steel internal and external sealing tee for electro-hydraulic control is provided, including a tee valve 1, an electric controller 2, a pressure relief column 3, a valve body 4, a left passage pipe 101, a right passage pipe 102, a column 103, a drive push rod 201, a moving block 202, and a cylinder 402. The left passage pipe 101 is installed on the left side of the tee valve 1, and the right passage pipe 102 is installed on the right side of the tee valve 1. The column 103 is installed on the upper side of the tee valve 1, and the electric controller 2 is installed on the upper side of the column 103. The drive push rod 201 is installed inside the electric controller 2, and the moving block 202 is installed on the lower side of the drive push rod 201. The pressure relief column 3 is connected to the moving block 202, and the cylinder 402 is installed at the lower end of the pressure relief column 3. The valve body 4 is installed at the bottom of the cylinder 402.

[0023] Specifically, a valve plate 9 is installed in the middle of the three-way valve 1, at the junction of the left pipe 101 and the right pipe 102. A first port 106 is provided between the valve plate 9 and the left pipe 101, and a second port 107 is provided between the valve plate 9 and the right pipe 102. A rail groove 104 is provided on the inner side wall of the column 103. A guide post 6 is installed in the rail groove 104. A first spring 7 is installed around the bottom outer wall of the guide post 6. A rail block 204 is installed in the rail groove 104. The guide post 6 can be inserted through the middle of the rail block 204. The rail block 204 is located at the upper end of the first spring 7. A connecting plate 203 is installed on the side wall of the rail block 204. A moving block 202 is connected to the other end of the connecting plate 203. A pressure relief cylinder 301 is installed on the bottom side wall of the pressure relief column 3. The outer side wall of the pressure relief cylinder 301 has four slots 302 of the same size.

[0024] The pressure relief cylinder 301 has a sliding cylinder 402 inside. Four protruding plates 403 of the same size are installed on the outer side of the top of the cylinder 402. The protruding plates 403 can be inserted into the slot 302. A second spring 8 is installed between the inner side of the pressure relief cylinder 301 and the cylinder 402. A sealing plate 401 is installed at the junction of the cylinder 402 and the valve body 4. A ring plate 404 is installed at the upper end of the sealing plate 401. A rubber liquid pan 5 is installed between the sealing plate 401 and the ring plate 404. An arc ring 501 is installed on the outer side wall of the rubber liquid pan 5.

[0025] The working principle of this utility model is as follows:

[0026] When using a special stainless steel internal and external sealing tee for electro-hydraulic control, during valve closure, the electric controller 2 controls the drive push rod 201 to push the moving block 202. The moving block 202 pushes the pressure relief column 3 downward. When the upper end of the slot 302 of the pressure relief cylinder 301 reaches the protrusion 403 on the outer side of the top of the cylinder 402, the valve body 4 moves downward. When the valve body 4 moves into the second port 107, it stops. At this time, no liquid flows out of the right pipe 102, and the liquid in the left pipe 101 flows into the inside of the tee valve 1 from the first port 106. When the flowing liquid reaches the height of the rubber liquid pan 5, it flows into the arc ring 501. Through the flow-blocking effect of the arc ring 5, the liquid accumulates in the rubber liquid pan 5. At this time, the rubber liquid pan 5 is squeezed downward under the pressure of the liquid. When the rubber liquid pan 5 completely covers the first port 106 and the second port 107, the liquid in the left pipe 101 stops flowing inward due to the water pressure difference. Through the sealing effect of the rubber liquid pan 5, the tee can achieve secondary sealing. With the action of the valve body 4 and the sealing plate 401, the sealing performance is improved. Since the inner wall of the column 103 is provided with a rail groove 104, the guide post 6 is installed in the rail groove 104, and the bottom outer wall of the guide post 6 is surrounded by a first spring 7. A second spring 8 is installed between the inner side of the pressure relief cylinder 301 and the cylinder 402. Through the buffering effect of the spring, the impact force between the parts can be reduced, and the service life can be increased.

[0027] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An electro-hydraulically controlled special stainless steel tee with internal and external seal, characterized in that, It includes three-way valve (1), electric controller (2), pressure relief column (3), valve body (4), left pipe (101), right pipe (102), column (103), drive push rod (201), moving block (202) and cylinder (402), three-way valve (1) left side installation left pipe (101), three-way valve (1) right side installation right pipe (102), three-way valve (1) upper side installation column (103), column (103) upper side installation electric controller (2), electric controller (2) inside installation drive push rod (201), drive push rod (201) lower side installation moving block (202), moving block (202) connection installation pressure relief column (3), pressure relief column (3) lower end installation cylinder (402), cylinder (402) bottom installation valve body (4).

2. The electro-hydraulic control special stainless steel inner and outer sealing tee according to claim 1, characterized in that, The three-way valve (1) is installed in the middle position of the valve plate (9), that is, the junction of the left pipe (101) and the right pipe (102), a through hole (106) is arranged between the valve plate (9) and the left pipe (101), and a second through hole (107) is arranged between the valve plate (9) and the right pipe (102).

3. The electro-hydraulic control special stainless steel inner and outer sealing tee according to claim 1, characterized in that, The inner wall of the column (103) is provided with a rail groove (104), the rail groove (104) is provided with a guide column (6), and the bottom outer wall of the guide column (6) is provided with a first spring (7).

4. The electro-hydraulic control special stainless steel inner and outer sealing tee according to claim 3, characterized in that, The rail groove (104) is provided with a rail block (204), the rail block (204) is provided with a guide column (6) in the middle position, and the rail block (204) is arranged on the upper end position of the first spring (7).

5. The electro-hydraulically controlled special stainless steel tee with internal and external seal according to claim 4, characterized in that, The rail block (204) is provided with a connecting plate (203), and the other end of the connecting plate (203) is connected and arranged with the moving block (202).

6. The electro-hydraulically controlled special stainless steel tee with internal and external seal according to claim 1, characterized in that, The bottom side wall of the pressure relief column (3) is provided with a pressure relief cylinder (301), and the outer side wall of the pressure relief cylinder (301) is provided with four same size slot holes (302).

7. The electro-hydraulically controlled special stainless steel tee with internal and external seal according to claim 6, characterized in that, The pressure relief cylinder (301) is provided with a cylinder (402) which can slide, and the top outer side wall of the cylinder (402) is provided with four same size convex plates (403) which can be inserted into the slot holes (302).

8. The electro-hydraulically controlled special stainless steel tee with internal and external seal according to claim 7, characterized in that, The pressure relief cylinder (301) is provided with a second spring (8) between the inner side and the cylinder (402).

9. The electro-hydraulically controlled special stainless steel tee with internal and external seal according to claim 8, characterized in that, The junction of the cylinder (402) and the valve body (4) is provided with a sealing plate (401), the upper end position of the sealing plate (401) is provided with a ring plate (404), the sealing plate (401) and the ring plate (404) are provided with a rubber liquid disc (5), and the outer circle side wall of the rubber liquid disc (5) is provided with an arc ring (501).

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