Double-valve-group structure

Abstract

The utility model relates to the technical field of control valves, in particular to a double-valve-group structure which comprises a main valve body, a first through groove is formed in the main valve body, a second through groove is formed in the main valve body, a valve rod is installed in the second through groove, a valve clack is fixed at one end of the valve rod and located in the second through groove, and the valve clack is connected with the main valve body. One end of the valve rod penetrates through the main valve body, the other end of the valve rod penetrates through the main valve body, a filler gasket is arranged on the end face of the side, facing the valve clack, of the filler, a push block is slidably connected into the first through groove, a limiting groove is formed in the push block, a sliding groove is formed in the first through groove, a guide rod is slidably connected into the sliding groove, and the guide rod is fixedly connected into the limiting groove. The push block is pushed by pressure to move in the first through groove, the push block drives the guide rod to move, the guide rod drives the induction rod to make contact with the induction gasket, and the induction gasket triggers the warning lamp to warn.

Description

Technical Field

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

[0002] A valve is a pipeline accessory used to control the opening and closing of a pipeline, control the flow direction, and adjust and control the parameters of the transported medium (temperature, pressure, flow rate).

[0003] The sewage in the sewage transportation pipeline often carries a large amount of relatively large dirt, which is likely to cause blockage at a certain part of the pipeline. The pipeline blockage will cause the water pressure on some parts of the pipeline to increase. If the pipeline is not depressurized in time, it is easy to cause potential safety hazards. Content of the Utility Model

[0004] The utility model provides a double valve group structure.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A double valve group structure includes a main valve body. A first through groove is arranged in the main valve body. A second through groove is arranged in the main valve body. A valve stem is installed in the second through groove. One end of the valve stem is fixed with a valve flap, and the valve flap is located in the second through groove. The other end of the valve stem penetrates through the main valve body. A packing washer is arranged on the end face of the packing facing the valve flap. A push block is slidably connected in the first through groove. The push block is provided with a limiting groove. A sliding groove is arranged in the first through groove. A guiding rod is slidably connected in the sliding groove, and the guiding rod is fixedly connected in the limiting groove. A limiting plate is sleeved outside the guiding rod. A limiting spring is arranged between the limiting plate and the first through groove. A pressure gauge is arranged in the main valve body. An induction gasket is fixed in the sliding groove. The main valve body is provided with a threaded hole. A lead screw is threadedly connected to the threaded hole. The lead screw is provided with a cross groove. A cross slider is slidably connected in the cross groove. A connecting block is arranged on the end face of the guiding rod facing the threaded hole. A connecting rod is rotatably connected in the connecting block, and the connecting rod is fixedly connected to the cross slider. A positioning block is fixed at one end of the guiding rod facing the induction gasket. An induction rod is slidably connected in the positioning block. A buffer spring is fixed in the positioning block, and the buffer spring is fixedly connected to the induction rod. A warning lamp is fixed to the main valve body, and the warning lamp is fixedly connected to the induction gasket. The warning lamp is triggered when the induction rod touches the induction gasket.

[0007] Further, a hand lever is fixed to the valve stem by a flat end set screw.

[0008] Further, a packing gland is sleeved outside the valve stem.

[0009] Further, a hexagonal nut is sleeved outside the packing gland.

[0010] Further, packing is filled inside the packing gland.

[0011] Beneficial effects:

[0012] The pressure gauge of the present utility model is used to detect the pressure of sewage in the main valve body. When the hydraulic pressure in the sewage pipeline is too high, the excessive pressure pushes the push block to move in the first through groove. The push block drives the guiding rod to move. The movement of the guiding rod drives the cross slider to slide in the cross groove. The movement of the push block connects the first through groove to the second through groove. The guiding rod drives the sensing rod to contact the sensing gasket, and the sensing gasket triggers the warning light to give a warning. After the staff sees the warning of the warning light, the staff manually operates to connect the second through groove to the first through groove to relieve the pressure of the sewage pipe.

[0013] When the present utility model discharges sewage, the screw rod is manually rotated. Under the action of the thread of the threaded hole, the screw rod moves. The screw rod drives the cross chute to rotate and move. The cross chute drives the cross slider to rotate and move. The cross slider drives the connecting rod to rotate and move. The connecting rod can rotate in the connecting block. The connecting rod drives the push block to move. When the warning light is on, the rotation of the screw rod can be stopped. The movement of the push block opens the first through groove. The screw rod has the characteristic of self-locking under the action of the threaded hole to keep the first through groove always open. Subsequently, the second through groove is manually operated to connect to the first through groove to discharge the sewage in the sewage pipe. Description of the drawings

[0014] Figure 1 is the schematic diagram of the front view full-section structure of the present utility model Figure 1 ;

[0015] Figure 2 is the schematic diagram of the front view full-section structure of the present utility model Figure 2 ;

[0016] Figure 3 is of the present utility model Figure 1 The partial enlarged view of A in

[0017] In the figure: 1 main valve body, 2 first through groove, 3 second through groove, 4 valve rod, 5 valve flap, 6 hand lever, 7 packing gland, 8 hexagon nut, 9 packing, 10 packing washer, 11 push block, 12 limit groove, 13 chute, 14 guiding rod, 15 limit plate, 16 limit spring, 17 pressure gauge, 18 sensing gasket, 19 threaded hole, 20 screw rod, 21 connecting block, 22 positioning block, 23 sensing rod, 24 buffer spring, 25 warning light, 26 cross groove, 27 cross slider, 28 connecting rod, 29 flat end set screw. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] Referring to Figures 1 - 3 , a double-valve group structure includes a main valve body 1. A first through groove 2 is provided in the main valve body 1. A second through groove 3 is provided in the main valve body 1. A valve stem 4 is installed in the second through groove 3. One end of the valve stem 4 is fixed with a valve flap 5. The valve flap 5 is located in the second through groove 3. The other end of the valve stem 4 penetrates the main valve body 1. A packing gland 7 is sleeved outside the valve stem 4. A hexagonal nut 8 is sleeved outside the packing gland 7. The inner side of the packing gland 7 is filled with packing 9. A packing washer 10 is provided on the end face of the packing 9 facing the valve flap 5. A hand lever 6 is fixed to the valve stem 4 by a flat-end set screw. A push block 11 is slidably connected in the first through groove 2. The push block 11 is provided with a limiting groove 12. A sliding groove 13 is provided in the first through groove 2. A guiding rod 14 is slidably connected in the sliding groove 13. The guiding rod 14 is fixedly connected in the limiting groove 12. A limiting plate 15 is sleeved outside the guiding rod 14. A limiting spring 16 is provided between the limiting plate 15 and the first through groove 2. A pressure gauge 17 is provided in the main valve body 1. An induction gasket 18 is fixed in the sliding groove 13. The main valve body 1 is provided with a threaded hole 19. A lead screw 20 is threadedly connected to the threaded hole 19. The lead screw 20 is provided with a cross groove 26. A cross slider 27 is slidably connected in the cross groove 26. A connecting block 21 is provided on the end face of the guiding rod 14 facing the threaded hole 19. A connecting rod 28 is rotatably connected in the connecting block 21. The connecting rod 28 is fixedly connected to the cross slider 27. A positioning block 22 is fixed to one end of the guiding rod 14 facing the induction gasket 18. An induction rod 23 is slidably connected in the positioning block 22. A buffer spring 24 is fixed in the positioning block 22. The buffer spring 24 is fixedly connected to the induction rod 23. A warning lamp 25 is fixed to the main valve body 1. The warning lamp 25 is fixedly connected to the induction gasket 18. When the induction rod 23 touches the induction gasket 18, the warning lamp 25 is triggered.

[0021] Referring to Figures 1 - 3, a double-valve group structure. When the equipment is running, the pressure gauge 17 is used to detect the pressure of the sewage in the main valve body 1. When the hydraulic pressure in the sewage pipeline is too high, the excessive pressure pushes the push block 11 to move in the first through groove 2. The push block 11 forces the guide rod 14 to move. The movement of the guide rod 14 drives the cross slider 27 to slide in the cross groove 26. The movement of the push block 11 connects the first through groove 2 to the second through groove 3. The guide rod 14 drives the induction rod 23 to contact the induction gasket 18. The induction gasket 18 triggers the warning light 25. After the staff sees the warning of the warning light 25, they manually open the hand lever 6. The hand lever 6 drives the valve rod 4 to move, and the valve rod 4 drives the valve flap 5 to move. At this time, the second through groove 3 is connected to the first through groove 2 to relieve the pressure of the sewage pipeline. When the pressure in the sewage pipeline weakens, the push block 11 closes the first through groove 2 under the action of the limit spring 16.

[0022] Refer to Figures 1 - 3 , when a double-valve group structure is draining water, first manually rotate the lead screw 20. The lead screw 20 moves under the action of the thread in the threaded hole 19. The lead screw 20 drives the cross chute 13 to rotate and move. The cross chute 13 drives the cross slider 27 to rotate and move. The cross slider 27 drives the connecting rod 28 to rotate and move. The connecting rod 28 can rotate in the connecting block 21. The connecting rod 28 drives the push block 11 to move. When the warning light 25 is on, the rotation of the lead screw 20 can be stopped. The movement of the push block 11 opens the first through groove 2. The lead screw 20 has the characteristic of self-locking under the action of the threaded hole 19 to keep the first through groove 2 always open. Manually open the hand lever 6. The hand lever 6 drives the valve rod 4 to move, and the valve rod 4 drives the valve flap 5 to move. At this time, the second through groove 3 is connected to the first through groove 2 to discharge the sewage in the sewage pipeline.

[0023] As mentioned above, it is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A double valve group structure, characterized in that: It includes a main valve body (1). A first through groove (2) is provided inside the main valve body (1). A second through groove (3) is provided inside the main valve body (1). A valve stem (4) is installed inside the second through groove (3). One end of the valve stem (4) is fixed with a valve flap (5). The valve flap (5) is located inside the second through groove (3). The other end of the valve stem (4) penetrates the main valve body (1). A packing gland (7) is sleeved outside the valve stem (4). Packing (9) is filled inside the packing gland (7). A packing washer (10) is provided on the end face of the packing (9) facing the valve flap (5). A push block (11) is slidably connected inside the first through groove (2). The push block (11) is provided with a limiting groove (12). A sliding groove (13) is provided inside the first through groove (2). A guiding rod (14) is slidably connected inside the sliding groove (13). The guiding rod (14) is fixedly connected inside the limiting groove (12). A limiting plate (15) is sleeved outside the guiding rod (14). A limiting spring (16) is provided between the limiting plate (15) and the first through groove (2). A pressure gauge (17) is provided inside the main valve body (1). An induction gasket (18) is fixed inside the sliding groove (13). The main valve body (1) is provided with a threaded hole (19). A lead screw (20) is threadedly connected to the threaded hole (19). The lead screw (20) is provided with a cross slot (26). A cross slider (27) is slidably connected inside the cross slot (26). A connecting block (21) is provided on the end face of the guiding rod (14) facing the threaded hole (19). A connecting rod (28) is rotatably connected inside the connecting block (21). The connecting rod (28) is fixedly connected to the cross slider (27). A positioning block (22) is fixed at one end of the guiding rod (14) facing the induction gasket (18). An induction rod (23) is slidably connected inside the positioning block (22). A buffer spring (24) is fixed inside the positioning block (22). The buffer spring (24) is fixedly connected to the induction rod (23). A warning lamp (25) is fixed to the main valve body (1). The warning lamp (25) is fixedly connected to the induction gasket (18). When the induction rod (23) touches the induction gasket (18), the warning lamp (25) is triggered.

2. The dual valve group structure according to claim 1, characterized in that: A hand lever (6) is fixed to the valve stem (4) by a flat-end set screw.

3. The double valve group structure according to claim 1, characterized in that: A hexagonal nut (8) is sleeved outside the packing gland (7).

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