Self-lubricating heavy mechanical valve

Abstract

The utility model relates to the technical field of heavy mechanical valves, in particular to a self-lubricating heavy mechanical valve which comprises a heavy mechanical valve body and an oil tank, a valve seat is fixedly connected to the heavy mechanical valve body, a valve rod is rotatably mounted on the valve seat, and a round seat communicated with the oil tank is fixedly connected to the lower side of the oil tank. One side of the round seat is fixedly connected with an oil outlet pipe communicated with the round seat; the oil discharging mechanism comprises a piston located in the round seat, the interior of the round seat is slidably connected with a first guide rod, and one side of the first guide rod is fixedly connected with the piston. The cam jacks up the rolling wheel to drive the piston to move, automatic conveying of lubricating oil is achieved, the annular sponge can evenly infiltrate the valve rod, surrounding type lubrication is formed, and the service life of the valve rod is prolonged. Friction and oxidation corrosion of the valve rod are effectively reduced, the lubrication process can be rapidly started and stopped through the linkage design of the operating hand wheel and the clamping rod, it is guaranteed that lubrication is precise and controllable, waste of lubricating oil is avoided, and the service life of the valve rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of heavy machinery valve technology, specifically a self-lubricating heavy machinery valve. Background Technology

[0002] Heavy machinery valves play a vital role in heavy machinery and are suitable for high-pressure, large-diameter, and high-flow applications. They are mainly used to control the flow rate, flow direction, pressure, and temperature of fluid media to ensure the normal operation and safety of mechanical equipment.

[0003] In actual use, the valve stem of heavy machinery valves is usually exposed to the outside environment, which makes the valve stem prone to oxidation and rust. This increases the friction when the valve stem rotates, making it difficult to rotate normally. If it is forced to rotate, it will damage the components of the heavy machinery valve and reduce the service life of the heavy machinery valve. Utility Model Content

[0004] The purpose of this invention is to provide a self-lubricating heavy-duty mechanical valve to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A self-lubricating heavy-duty mechanical valve, characterized in that it comprises:

[0007] The heavy machinery valve body and oil tank are as follows: a valve seat is fixedly connected to the heavy machinery valve body, a valve stem is rotatably mounted on the valve seat, a circular seat communicating with the oil tank is fixedly connected to the lower side of the oil tank, and an oil outlet pipe communicating with the circular seat is fixedly connected to one side of the circular seat; an oil discharge mechanism includes a piston located inside the circular seat, a first guide rod is slidably connected inside the circular seat, one side of the first guide rod is fastened to the piston, a fixed seat is fixedly connected to the lower side of the first guide rod, a roller is rotatably connected inside the fixed seat, a first spring is fixedly connected between the circular seat and the fixed seat, a connecting plate is fixedly connected to the lower side of the oil tank, a rotating rod is rotatably connected inside the connecting plate, a cam is fixedly connected to one side of the rotating rod, and an operating handwheel is fixedly connected to the other side of the rotating rod.

[0008] Preferably, two vertical rods are fixedly connected to the upper side of the valve seat, and a ring is fixedly connected to the upper side of the two vertical rods. An annular sponge is connected to the inner array of the ring, and the oil outlet pipe is located above the annular sponge.

[0009] Preferably, the outer surface of the operating handwheel is provided with a groove, a support plate is fixedly connected to one side of the connecting plate, a second guide rod is slidably connected inside the support plate, a locking rod is fixedly connected to the lower side of the second guide rod, one side of the locking rod is locked inside the groove, a second spring is fixedly connected between the locking rod and the support plate, and a circular plate is fixedly connected to the upper side of the second guide rod.

[0010] Preferably, two symmetrically arranged fixing plates are fixedly connected to the upper side of the valve seat, and a protective cover is rotatably connected inside the two fixing plates. A side plate is fixedly connected to the upper side of the two protective covers.

[0011] Preferably, the two side plates are internally fitted with embedded plates, the upper side of which is fitted with two pins, and the lower side of the pins penetrates through the embedded plates and extends to the lower side of the embedded plates.

[0012] Preferably, two vertical plates are fixedly connected to the upper side of the valve seat, one side of the two vertical plates is fastened to the oil tank, and a refueling pipe communicating with the oil tank is fixedly connected to the upper side of the oil tank.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model uses a cam to lift a roller and drive the piston to move, thereby realizing the automatic delivery of lubricating oil. This allows the annular sponge to evenly wet the valve stem, forming a surrounding lubrication, which effectively reduces valve stem friction and oxidation corrosion. Furthermore, the linkage design between the operating handwheel and the lever can quickly start and stop the lubrication process, ensuring precise and controllable lubrication, avoiding lubricating oil waste, and extending the service life of the valve stem.

[0015] 2. This utility model can completely cover the valve stem and oil tank through the combination structure of protective cover and embedded plate, which can prevent dust and pollution and reduce the damage of external environment to valve stem. At the same time, the double fixing mechanism of pin locking and lever limiting mechanism fixes the operating handwheel to prevent accidental contact or loosening, and ensures the stable operation of heavy mechanical valve in non-lubricated state. Attached Figure Description

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

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a utility model Figure 1 Schematic diagram of the structure of the oil tank and the ring;

[0019] Figure 3 This is a utility model Figure 2 Schematic diagram of the structure of the middle ring and the ring-shaped sponge;

[0020] Figure 4 This is a utility model Figure 3 A schematic diagram of the installation of the first guide rod and the piston;

[0021] Figure 5 This is a utility model Figure 4 Installation diagram of the second guide rod and the locking rod;

[0022] Figure 6 This is a utility model Figure 1 Schematic diagram of the structure of the protective shield;

[0023] The attached figures are labeled as follows:

[0024] 1. Heavy-duty mechanical valve body; 2. Valve seat; 3. Valve stem; 4. Oil tank; 5. Vertical plate; 6. Circular ring; 7. Circular sponge; 8. Vertical rod; 9. Circular seat; 10. Oil outlet pipe; 11. First guide rod; 12. Piston; 13. Fixed seat; 14. Roller; 15. First spring; 16. Connecting plate; 17. Rotating rod; 18. Cam; 19. Operating handwheel; 20. Support plate; 21. Groove; 22. Second guide rod; 23. Circular plate; 24. Locking rod; 25. Second spring; 26. Oil filling pipe; 27. Fixed plate; 28. Protective cover; 29. ​​Side plate; 30. Embedded plate; 66. Pin. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 6 As shown, a self-lubricating heavy-duty mechanical valve includes:

[0027] The heavy machinery valve body 1 and the oil tank 4 are provided. The valve seat 2 is fixedly connected to the heavy machinery valve body 1. The valve stem 3 is rotatably installed on the valve seat 2. The lower side of the oil tank 4 is fixedly connected to the round seat 9 which communicates with the oil tank 4. The side of the round seat 9 is fixedly connected to the oil outlet pipe 10 which communicates with the round seat 9.

[0028] The oil discharge mechanism includes a piston 12 located inside a circular seat 9. A first guide rod 11 is slidably connected inside the circular seat 9. One side of the first guide rod 11 is fastened to the piston 12. A fixed seat 13 is fixedly connected to the lower side of the first guide rod 11. A roller 14 is rotatably connected inside the fixed seat 13. A first spring 15 is fixedly connected between the circular seat 9 and the fixed seat 13. A connecting plate 16 is fixedly connected to the lower side of the oil tank 4. A rotating rod 17 is rotatably connected inside the connecting plate 16. A cam 18 is fixedly connected to one side of the rotating rod 17. An operating handwheel 19 is fixedly connected to the other side of the rotating rod 17. Through the setting of the oil outlet pipe 10, the oil outlet pipe 10 is in a downward inclined state so that the lubricating oil can automatically flow downward and enter the annular sponge 7 to lubricate the valve stem 3, which is convenient to use.

[0029] Two vertical rods 8 are fixedly connected to the upper side of the valve seat 2. A ring 6 is fixedly connected to the upper side of the two vertical rods 8. An annular sponge 7 is connected in an array inside the ring 6. The oil outlet pipe 10 is located above the annular sponge 7. The annular sponge 7 can fit and surround the outer surface of the valve stem 3 to lubricate the valve stem 3.

[0030] The outer surface of the operating handwheel 19 has a groove 21. A support plate 20 is fixedly connected to one side of the connecting plate 16. A second guide rod 22 is slidably connected inside the support plate 20. A locking rod 24 is fixedly connected to the lower side of the second guide rod 22. One side of the locking rod 24 is locked inside the groove 21. A second spring 25 is fixedly connected between the locking rod 24 and the support plate 20. A circular plate 23 is fixedly connected to the upper side of the second guide rod 22.

[0031] Two symmetrically arranged fixing plates 27 are fixedly connected to the upper side of the valve seat 2. A protective cover 28 is rotatably connected inside the two fixing plates 27. A side plate 29 is fixedly connected to the upper side of the two protective covers 28.

[0032] An embedded plate 30 is snapped into the inside of the two side plates 29. Two pins 66 are snapped into the upper side of the embedded plate 30. The lower side of the pins 66 passes through the embedded plate 30 and extends to the lower side of the embedded plate 30.

[0033] Two vertical plates 5 are fixedly connected to the upper side of the valve seat 2. One side of the two vertical plates 5 is fastened to the oil tank 4. A filling pipe 26 connected to the oil tank 4 is fixedly connected to the upper side of the oil tank 4. The filling pipe 26 can be used to replenish the oil tank 4 with lubricating oil so as to lubricate the valve stem 3.

[0034] The working principle of the self-lubricating heavy-duty mechanical valve provided by this utility model is as follows:

[0035] By pulling the circular plate 23 upward, the circular plate 23 will drive the locking rod 24, which is equipped with the second spring 25 at the second guide rod 22, to move upward and away from the groove 21. At this time, the limit on the operating handwheel 19 can be released. Then, the operating handwheel 19 is rotated, which drives the cam 18 at the rotating rod 17 to rotate. In this way, the cam 18 can push the elastic roller 14 upward, so that the piston 12 at the first guide rod 11 moves away from the circular seat 9. Then, the lubricating oil in the oil tank 4 will enter the circular seat 9 and drip into the annular sponge 7 of the circular ring 6 through the oil outlet pipe 10 at the circular seat 9. In this way, the annular rubber pad containing lubricating oil can contact the valve stem 3, so that the lubricating oil lubricates the valve stem 3 on the heavy machinery valve in a circular manner. Regularly lubricating the valve stem 3 can prevent the valve stem 3 from rusting due to oxidation reaction, give the valve stem 3 self-lubricating ability, reduce the friction when the valve stem 3 rotates, effectively lubricate and protect the valve stem 3, and improve the overall service life of the heavy machinery valve.

[0036] When the lubrication of valve stem 3 is finished, the operating handwheel 19 is rotated to drive the cam 18 at the rotating rod 17. The elastic force of the first spring 15 allows the piston 12 at the first guide rod 11 to move downward and complete the reset. In this way, the piston 12 can block the round seat 9, preventing the lubricating oil in the oil tank 4 from entering the round seat 9, thereby cutting off the flow of lubricating oil. Then, the elastic locking rod 24 is released, allowing the locking rod 24 to engage with the groove 21 of the operating handwheel 19 to securely lock the entire operating handwheel 19 and stop the lubricating oil from lubricating valve stem 3. Next, the protective covers 28 at the two fixed plates 27 are rotated upward in sequence, so that the two protective covers 28 can both surround the valve stem 3 of the heavy machinery valve and protect the oil tank 4. Then, the embedded plate 30 is engaged with the two side plates 29, and then the two pins 66 are inserted into the embedded plate 30 to limit and fix the embedded plate 30, ensuring that the two protective covers 28 can stably and reliably protect the heavy machinery valve, while also reducing the impact of dust on valve stem 3.

[0037] 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 self-lubricating heavy-duty mechanical valve, characterized in that, include: The heavy mechanical valve body (1) and the oil tank (4) are provided. A valve seat (2) is fixedly connected to the heavy mechanical valve body (1). A valve stem (3) is rotatably installed on the valve seat (2). A round seat (9) communicating with the oil tank (4) is fixedly connected to the lower side of the oil tank (4). An oil outlet pipe (10) communicating with the round seat (9) is fixedly connected to one side of the round seat (9). The oil-feeding mechanism includes a piston (12) located inside a round seat (9). A first guide rod (11) is slidably connected inside the round seat (9). One side of the first guide rod (11) is fastened to the piston (12). A fixed seat (13) is fixedly connected to the lower side of the first guide rod (11). A roller (14) is rotatably connected inside the fixed seat (13). A first spring (15) is fixedly connected between the round seat (9) and the fixed seat (13). A connecting plate (16) is fixedly connected to the lower side of the oil tank (4). A rotating rod (17) is rotatably connected inside the connecting plate (16). A cam (18) is fixedly connected to one side of the rotating rod (17). An operating handwheel (19) is fixedly connected to the other side of the rotating rod (17).

2. The self-lubricating heavy-duty mechanical valve according to claim 1, characterized in that, Two vertical rods (8) are fixedly connected to the upper side of the valve seat (2), and a ring (6) is fixedly connected to the upper side of the two vertical rods (8). An annular sponge (7) is connected to the inner array of the ring (6), and the oil outlet pipe (10) is located above the annular sponge (7).

3. The self-lubricating heavy-duty mechanical valve according to claim 1, characterized in that, The outer surface of the operating handwheel (19) is provided with a groove (21). A support plate (20) is fixedly connected to one side of the connecting plate (16). A second guide rod (22) is slidably connected inside the support plate (20). A locking rod (24) is fixedly connected to the lower side of the second guide rod (22). One side of the locking rod (24) is locked inside the groove (21). A second spring (25) is fixedly connected between the locking rod (24) and the support plate (20). A circular plate (23) is fixedly connected to the upper side of the second guide rod (22).

4. The self-lubricating heavy-duty mechanical valve according to claim 1, characterized in that, The valve seat (2) is fixedly connected to two symmetrically arranged fixing plates (27) on its upper side. The interior of each fixing plate (27) is rotatably connected to a protective cover (28), and the upper side of each protective cover (28) is fixedly connected to a side plate (29).

5. A self-lubricating heavy-duty mechanical valve according to claim 4, characterized in that, An embedded plate (30) is snapped into the interior of the two side plates (29). Two pins (66) are snapped into the upper side of the embedded plate (30). The lower side of the pins (66) passes through the embedded plate (30) and extends to the lower side of the embedded plate (30).

6. A self-lubricating heavy-duty mechanical valve according to claim 1, characterized in that, Two vertical plates (5) are fixedly connected to the upper side of the valve seat (2). One side of the two vertical plates (5) is fastened to the oil tank (4). A refueling pipe (26) communicating with the oil tank (4) is fixedly connected to the upper side of the oil tank (4).

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