Floating ball wear-resistant shut-off valve

By designing an automatic lubrication system and a microporous filter plate, the problem of poor lubrication in floating ball shut-off valves was solved, improving sealing performance and reducing lubricant waste, thus achieving wear resistance and reliability.

CN224453765UActive Publication Date: 2026-07-03浙江秦工阀门有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江秦工阀门有限公司
Filing Date
2025-08-31
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing floating ball shut-off valves, the lubrication effect between the shaft and the valve seat is poor, resulting in severe wear, affecting sealing performance and switching torque, and manual application of lubricating oil is a serious waste.

Method used

A floating ball type wear-resistant shut-off valve, including a rotating component and a high-efficiency, energy-saving, and wear-resistant component, was designed. The automatic lubrication system accurately delivers lubricating oil to the gap between the shaft and the valve seat, and the microporous filter screen intercepts impurities to prevent wear.

Benefits of technology

This achieves efficient delivery of lubricating oil, reduces wear, improves sealing performance, reduces lubricating oil waste, and ensures the long-term reliability of the valve.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224453765U_ABST
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Abstract

This utility model discloses a floating ball type wear-resistant shut-off valve, including a rotating assembly comprising a valve body, a ball, a T-shaped shaft, an external block, and an external shaft. The external block movably connects the T-shaped shaft and the external shaft. A high-efficiency, energy-saving, and wear-resistant component includes a circular groove, an oil passage cylinder, a receiving pipe, and an oil reservoir. Circular grooves are formed at both ends of the external block, and the oil passage cylinder is movably connected to the circular grooves. One end of the receiving pipe is fixedly connected to the top of the oil passage cylinder, and the other end of the receiving pipe is fixedly connected to the oil reservoir. When lubrication of the T-shaped shaft and the external shaft is required, simply pushing the piston rod allows the lubricating oil in the oil reservoir to enter the oil passage cylinder through the receiving pipe, and then be precisely applied to the area around the external shaft and the T-shaped shaft. This automatic lubrication method accurately delivers lubricating oil to the gap between the T-shaped shaft / external shaft and the valve seat, greatly improving the lubrication effect.
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Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a floating ball type wear-resistant shut-off valve. Background Technology

[0002] A floating ball shut-off valve is a typical structure of a ball valve. It mainly achieves the cut-off or flow of pipeline medium through the rotation of the ball. Its core feature is that the ball can generate a certain displacement under the action of medium pressure, thereby tightly fitting with the downstream valve seat to form a seal.

[0003] In existing technologies, to ensure the wear resistance and smooth operation of the top shaft of the ball valve, lubricating oil is usually applied manually to the outer ring of the shaft. However, due to the small gap between the shaft and the valve seat, it is difficult to apply the lubricating oil between the shaft and the valve manually, resulting in poor lubrication. Consequently, long-term use can easily lead to wear on the shaft surface, affecting sealing performance and switching torque. Furthermore, the application process can easily waste lubricating oil, increasing operating costs. Therefore, a new structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a floating ball type wear-resistant shut-off valve to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a floating ball type wear-resistant shut-off valve, comprising:

[0006] A rotating assembly, comprising a valve body, a ball, a T-shaped shaft, an external block, and an external shaft, wherein the ball is movably connected to the valve body, the external block is fixedly connected to the top of the valve body, the T-shaped shaft is fixedly connected to the top of the ball, the external shaft is fixedly connected to the outer ring of the T-shaped shaft, and the T-shaped shaft and the external shaft are movably connected to the external block.

[0007] A high-efficiency, energy-saving, and wear-resistant component includes a circular groove, an oil passage cylinder, a receiving pipe, and an oil storage box. Circular grooves are opened at both ends of the external block. The oil passage cylinder is movably connected in the circular groove. One end of the receiving pipe is fixedly connected to the top of the oil passage cylinder, and the other end of the receiving pipe is fixedly connected to the oil storage box.

[0008] Furthermore, the high-efficiency, energy-saving, and wear-resistant component also includes a piston rod, which is movably connected to the oil passage cylinder.

[0009] Furthermore, the high-efficiency energy-saving wear-resistant component also includes a rectangular groove and an L-shaped rod. The outer block has rectangular grooves at both ends, the bottom of the oil cylinder is fixedly connected to one end of the L-shaped rod, and the L-shaped rod is movably connected in the rectangular groove.

[0010] Furthermore, the high-efficiency energy-saving wear-resistant component also includes a first magnetic block and a second magnetic block. The first magnetic block is fixedly installed inside the rectangular groove, and the second magnetic block is fixedly connected to the side of the L-shaped rod. The second magnetic block is magnetically connected to the first magnetic block.

[0011] Furthermore, the rotating assembly also includes a sealing ring, which is fixedly installed on the outer ring of the T-shaped shaft.

[0012] Furthermore, it also includes an interception component, which includes a microporous filter plate, and the microporous filter plate is movably installed in the oil storage box.

[0013] Furthermore, the interception component also includes guide grooves and moving blocks. Guide grooves are formed on the inner walls of both sides of the oil storage box. Moving blocks are fixedly connected to both sides of the microporous filter plate, and moving blocks are movably connected in the guide grooves.

[0014] This utility model has the following beneficial effects:

[0015] This invention allows for the precise application of lubricating oil to the T-shaped shaft and external shaft when lubrication is required. Simply push the piston rod, and the lubricating oil in the oil reservoir will flow through the receiving pipe into the oil passage cylinder. The oil passage cylinder then precisely applies the lubricating oil to the area around the external shaft and T-shaped shaft. This automatic lubrication method accurately delivers lubricating oil to the gap between the T-shaped shaft, external shaft, and valve seat, solving the problem of manual application being difficult to achieve. This significantly improves the lubrication effect, prevents impact on sealing performance and switching torque, and reduces lubricating oil waste.

[0016] Based on the aforementioned beneficial effects, the microporous filter plate can effectively intercept solid particles in lubricating oil, preventing these impurities from entering the external shaft and around the T-shaped shaft, further preventing wear. In addition, the coordinated design of the guide groove and the moving block allows the microporous filter plate to be easily disassembled and replaced. When the microporous filter plate has been used for a period of time and a large amount of impurities have been intercepted, it can be quickly removed for cleaning or replacement to ensure the continuity of the interception effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the oil cylinder connection of this utility model;

[0021] Figure 4 A schematic diagram showing the circular groove of this utility model;

[0022] Figure 5 A schematic diagram of the guide groove of this utility model is provided.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101. Valve body; 102. Ball; 103. T-shaped shaft; 104. External connecting block; 105. External connecting shaft; 106. Sealing ring;

[0025] 201. Circular groove; 202. Oil passage cylinder; 203. Receiving pipe; 204. Oil reservoir; 205. Piston rod; 206. Rectangular groove; 207. L-shaped rod; 208. First magnetic block; 209. Second magnetic block;

[0026] 301. Microporous filter screen; 302. Guide groove; 303. Moving block. Detailed Implementation

[0027] 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.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-5 As shown, this utility model is a floating ball type wear-resistant shut-off valve, comprising:

[0030] The rotating assembly includes a valve body 101, a ball 102, a T-shaped shaft 103, an outer block 104, and an outer shaft 105. The ball 102 is movably connected to the valve body 101, the outer block 104 is fixedly connected to the top of the valve body 101, the T-shaped shaft 103 is fixedly connected to the top of the ball 102, the outer ring of the T-shaped shaft 103 is fixedly connected to the outer shaft 105, and the T-shaped shaft 103 and the outer shaft 105 are movably connected to the outer block 104.

[0031] The high-efficiency, energy-saving and wear-resistant component includes a circular groove 201, an oil pipe 202, a receiving pipe 203 and an oil storage box 204. The outer block 104 has circular grooves 201 at both ends. The oil pipe 202 is movably connected in the circular groove 201. One end of the receiving pipe 203 is fixedly connected to the top of the oil pipe 202, and the other end of the receiving pipe 203 is fixedly connected to the oil storage box 204.

[0032] The ball 102 controls the cutoff and flow of fluid. The outer block 104 ensures the movable connection of the T-shaped shaft 103 and the outer shaft 105. The T-shaped shaft 103 makes it easy for the user to rotate the ball 102. The outer shaft 105 makes it easy to rotate the ball 102 with less effort through the T-shaped shaft 103. The circular groove 201 ensures the movable connection of the oil cylinder 202 and its contact with the outer shaft 105. The receiving pipe 203 connects the oil cylinder 202 and the oil storage box 204, in which lubricating oil is initially placed.

[0033] The high-efficiency, energy-saving, and wear-resistant component also includes a piston rod 205, which is movably connected to the oil cylinder 202;

[0034] The piston rod 205 ensures the movement of lubricating oil in the oil passage 202.

[0035] The high-efficiency, energy-saving, and wear-resistant component also includes a rectangular groove 206 and an L-shaped rod 207. The outer block 104 has rectangular grooves 206 at both ends. The bottom of the oil cylinder 202 is fixedly connected to one end of the L-shaped rod 207, and the L-shaped rod 207 is movably connected in the rectangular groove 206.

[0036] The rectangular groove 206 and the L-shaped rod 207 work together to ensure the initial connection of the oil cylinder 202.

[0037] The high-efficiency, energy-saving, and wear-resistant component also includes a first magnetic block 208 and a second magnetic block 209. The first magnetic block 208 is fixedly installed inside the rectangular groove 206, and the second magnetic block 209 is fixedly connected to the side of the L-shaped rod 207. The second magnetic block 209 is magnetically connected to the first magnetic block 208.

[0038] The first magnetic block 208 and the second magnetic block 209 work together to ensure the secure installation of the oil cylinder 202 in the circular groove 201.

[0039] The rotating assembly also includes a sealing ring 106, and the sealing ring 106 is fixedly installed on the outer ring of the T-shaped shaft 103;

[0040] The sealing ring 106 serves a sealing function to prevent lubricating oil from entering the fluid in the valve body 101.

[0041] Working principle: First, insert the oil passage cylinder 202 into the circular groove 201, and insert the L-shaped rod 207 into the rectangular groove 206. At this time, the second magnetic block 209 magnetically attracts the first magnetic block 208, thus installing the oil passage cylinder 202. At this point, the piston part of the piston rod 205 in the oil passage cylinder 202 blocks the contact area between the bottom end of the receiving pipe 203 and the oil passage cylinder 202 (i.e., the lubricating oil in the oil reservoir 204 does not enter the oil passage cylinder 202). When lubrication of the T-shaped shaft 103 and the external shaft 105 is required... First, pull the piston rod 205 to both sides. At this time, the lubricating oil enters the oil passage cylinder 202 through the receiving pipe 203. Then, push the piston rod 205 inward to push the lubricating oil to move in the oil passage cylinder 202. Finally, move to the outer ring of the outer shaft 105 and the T-shaped shaft 103 to achieve lubrication. The sealing ring 106 blocks and intercepts the lubricating oil. When the T-shaped shaft 103 is rotated, the outer shaft 105 is driven to rotate at the outer block 104, and at the same time, the ball 102 is driven to rotate in the valve body 101.

[0042] Please see Figure 1-5 As shown, this embodiment, based on the above embodiment, further includes:

[0043] The interception component includes a microporous filter plate 301, which is movably installed in the oil storage box 204.

[0044] The microporous filter plate 301 is used to intercept solid particles (such as dust and rust) in the lubricating oil, preventing them from entering the T-shaped shaft 103 and the area around the external shaft 105 and causing severe wear.

[0045] The interception assembly also includes a guide groove 302 and a moving block 303. The guide groove 302 is opened on both sides of the inner wall of the oil storage box 204. The moving block 303 is fixedly connected to both sides of the microporous filter plate 301, and the moving block 303 is movably connected in the guide groove 302.

[0046] The guide groove 302 and the moving block 303 work together to ensure the easy disassembly and assembly of the microporous filter plate 301, and thus ensure the replacement of the microporous filter plate 301.

[0047] Working principle: The lubricating oil in the oil storage box 204 flows downward. When it passes through the microporous filter plate 301, solid particles such as dust and rust with a particle size larger than the mesh are intercepted. The filtered lubricating oil flows into the oil passage cylinder 202 through the receiving pipe 203. When impurities in the lubricating oil gradually accumulate, the pressure difference on both sides of the microporous filter plate 301 increases. At this time, the microporous filter plate 301 can be quickly pulled out for cleaning or replacement by sliding the moving block 303 in the guide groove 302.

[0048] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A floating ball wear resistant globe valve characterized by, include: A rotating assembly includes a valve body (101), a ball (102), a T-shaped shaft (103), an outer block (104), and an outer shaft (105). The ball (102) is movably connected to the valve body (101), the outer block (104) is fixedly connected to the top of the valve body (101), the T-shaped shaft (103) is fixedly connected to the top of the ball (102), the outer ring of the T-shaped shaft (103) is fixedly connected to the outer shaft (105), and the T-shaped shaft is movably connected to the outer block (104). (103) and external shaft (105); high-efficiency energy-saving wear-resistant component, the high-efficiency energy-saving wear-resistant component includes a circular groove (201), an oil pipe (202), a receiving pipe (203) and an oil storage box (204), the external block (104) has circular grooves (201) at both ends, the oil pipe (202) is movably connected in the circular groove (201), the top of the oil pipe (202) is fixedly connected to one end of the receiving pipe (203), and the other end of the receiving pipe (203) is fixedly connected to the oil storage box (204).

2. The floating ball wear-resistant shut-off valve according to claim 1, characterized in that: The high-efficiency energy-saving wear-resistant component also includes a piston rod (205), which is movably connected to the oil cylinder (202).

3. The floating ball wear-resistant shut-off valve according to claim 1, characterized in that: The high-efficiency energy-saving wear-resistant component also includes a rectangular groove (206) and an L-shaped rod (207). The outer block (104) has rectangular grooves (206) at both ends. The bottom of the oil cylinder (202) is fixedly connected to one end of the L-shaped rod (207). The L-shaped rod (207) is movably connected in the rectangular groove (206).

4. The floating ball type wear-resistant shut-off valve according to claim 3, characterized in that: The high-efficiency energy-saving wear-resistant component also includes a first magnetic block (208) and a second magnetic block (209). The first magnetic block (208) is fixedly installed inside the rectangular groove (206), and the second magnetic block (209) is fixedly connected to the side of the L-shaped rod (207). The second magnetic block (209) is magnetically connected to the first magnetic block (208).

5. The floating ball type wear-resistant shut-off valve according to claim 1, characterized in that: The rotating assembly also includes a sealing ring (106), and the sealing ring (106) is fixedly installed on the outer ring of the T-shaped shaft (103).

6. The floating ball type wear-resistant shut-off valve according to claim 1, characterized in that: It also includes an interception component, which includes a microporous filter plate (301) and is movably installed in the oil storage box (204).

7. The floating ball type wear-resistant shut-off valve according to claim 6, characterized in that: The interception component also includes a guide groove (302) and a moving block (303). The guide groove (302) is opened on both sides of the inner wall of the oil storage box (204). The moving block (303) is fixedly connected to both sides of the microporous filter plate (301). The moving block (303) is movably connected in the guide groove (302).