Leakage-proof eccentric semi-ball valve

Abstract

The utility model provides a leakproof eccentric semi-ball valve, which relates to the technical field of valves and comprises a valve body, connecting pipes are arranged at two ends of the valve body, first flange plates are arranged at two ends of each connecting pipe, an open groove is formed in one side, close to the valve body, of each connecting pipe, and a leakproof assembly is arranged on each connecting pipe through the corresponding open groove. The leakproof assembly comprises a fixing ring, a rotating reserved groove is formed in one side of the fixing ring, a damping spring is arranged on the side, away from the rotating reserved groove, of the fixing ring, and the leakproof leather cushion can be extruded through the fixing ring, so that the leakproof effect of the semi-ball valve is better; according to the semi-ball valve, friction cannot be generated on the leakage-proof assembly when the valve element assembly rotates by rotating the reserved groove, the fixing ring can be stretched out and drawn back through the damping spring when the valve element assembly rotates, a space is reserved, and when the semi-ball valve is closed, the fixing ring can be extruded through the damping spring, and leakage prevention is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a leak-proof eccentric hemispherical valve. Background Art

[0002] In industrial piping systems, leak-proof eccentric hemispherical valves, with their unique structural improvements, effectively prevent medium leakage and improve sealing performance. The eccentric design reduces friction and prolongs service life. This valve is not only easy to install, but also easy to maintain, and is an indispensable part of modern fluid control engineering.

[0003] The existing patent CN219774860U discloses a leak-proof eccentric hemispheric valve, which is an eccentric hemispheric valve with a simple structure, a limiting function, and the ability to prevent accidental rotation of a valve stem. The valve comprises a valve body, a valve cover arranged on the valve body, an inlet channel and an outlet channel opened on the valve body, and a ball plate arranged between the inlet channel and the outlet channel. The valve body is provided with a valve stem and a fixed disk for rotating the ball plate, the valve stem passes through the valve cover, the fixed disk is arranged on the valve cover, a gap is provided between the fixed disk and the valve stem, a sliding channel is provided on the valve stem above the fixed disk, a U-shaped sliding rod is provided in the sliding channel for sliding up and down, the sliding rod can slide downward into the gap, and a limiting device for positioning the sliding rod is provided in the fixed disk.

[0004] This patent solves the problem of preventing the valve stem from accidentally rotating. However, this patent still has the following shortcomings, such as: in equipment that is used for a long time, the hemispheric valve is an important fluid control component, and its performance stability has a crucial impact on the reliability of the entire system. During operation, the operation of the valve stem causes the ball plate to rotate, thereby regulating the flow of the fluid. However, due to the frequent friction between the ball plate and the water outlet channel, over time, not only will the sealing surface of the hemispheric valve be worn, but it may also cause deformation or damage to the ball plate, which will seriously reduce the sealing performance of the hemispheric valve and increase the risk of leakage. Therefore, in order to ensure long-term sealing effect and normal operation of the equipment, the hemispheric valve needs to be inspected and maintained regularly, which greatly increases the cost.

[0005] Therefore, the utility model provides a leak-proof eccentric hemispherical valve. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provide a leak-proof eccentric hemispherical valve.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a leak-proof eccentric hemispherical valve, comprising a valve body, both ends of the valve body are provided with connecting pipes, both ends of the connecting pipes are provided with flanges, a groove is provided on one side of the connecting pipe close to the valve body, and a leak-proof component is provided on the connecting pipe through the groove;

[0008] The anti-leakage component comprises a fixing ring, one side of the fixing ring is provided with a rotation reserved groove, and a damping spring is arranged on the side of the fixing ring away from the rotation reserved groove.

[0009] As a preferred implementation, the other end of the damping spring is fixed on the connecting pipe.

[0010] The technical effect of adopting the above further solution is that the anti-leakage component can be fixed on the connecting pipe by the damping spring.

[0011] As a preferred embodiment, a top pipe is arranged on the top of the valve body, a second flange is arranged on the top of the top pipe, a protection tube is arranged on the top of the second flange, and a rotating shaft is arranged inside the protection tube.

[0012] The technical effect of adopting the above further solution is: the flange plate 2 is connected through the top pipe arranged on the top of the valve body, and a protective tube is arranged on the top of the flange plate 2, and the rotating shaft can be isolated through the protective tube.

[0013] As a preferred embodiment, a semicircular valve core is sleeved on the connecting shaft, a fixing plate is provided at one end of the semicircular valve core, and a leak-proof leather pad is sleeved on the outer side of the fixing plate.

[0014] The technical effect of adopting the above further scheme is: the semicircular valve core is driven to rotate by rotating the connecting shaft, the hemispherical valve is closed by the fixed plate arranged on the outside of the semicircular valve core, and the anti-leakage leather pad can have a better blocking effect on the hemispherical valve.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] By providing a fixed ring, a rotation reserved groove, and a damping spring structure, the anti-leakage leather pad can be squeezed by the fixed ring, so that the anti-leakage effect of the hemispheric valve is better, the rotation reserved groove can prevent the valve core assembly from generating friction on the anti-leakage assembly when it is rotated, and the damping spring can make the fixed ring expand and contract when the valve core assembly rotates to reserve space, and when the hemispheric valve is closed, the fixed ring can be squeezed by the damping spring to prevent leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a leak-proof eccentric hemispherical valve provided by the utility model;

[0018] Figure 2 A schematic diagram of the connecting pipe structure of a leak-proof eccentric hemispherical valve provided by the utility model;

[0019] Figure 3A schematic diagram of the structure of a leak-proof component of a leak-proof eccentric hemispherical valve provided by the utility model;

[0020] Figure 4 A schematic diagram of the protection tube structure of a leak-proof eccentric hemispherical valve provided by the utility model;

[0021] Figure 5 The utility model provides a schematic diagram of the structure of a valve core assembly of a leak-proof eccentric hemispherical valve.

[0022] Legend:

[0023] 1. Valve body; 2. Connecting pipe; 3. Flange 1; 4. Valve core assembly; 5. Top pipe; 6. Flange 2; 7. Protective pipe; 8. Connecting plate; 9. Fixing rod; 10. Rotor; 11. Anti-leakage assembly; 12. Rotating shaft; 41. Semicircular valve core; 42. Connecting shaft; 43. Fixing plate; 44. Anti-leakage pad; 111. Fixing ring; 112. Rotation reserved groove; 113. Damping spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 - Figure 3 As shown, this embodiment provides a technical solution: a leak-proof eccentric hemispherical valve, comprising a valve body 1, both ends of the valve body 1 are provided with connecting pipes 2, both ends of the connecting pipe 2 are provided with flanges 3, a groove is provided on one side of the connecting pipe 2 close to the valve body 1, and a leak-proof component 11 is provided on the connecting pipe 2 through the groove;

[0026] The anti-leakage component 11 comprises a fixing ring 111, a rotation reserved groove 112 is provided on one side of the fixing ring 111, a damping spring 113 is provided on the side of the fixing ring 111 away from the rotation reserved groove 112, and a damping spring 113 is provided on the side of the fixing ring 111 away from the rotation reserved groove 112. The fixing ring 111 applies pressure to the anti-leakage pad 44 to ensure that the fluid can be effectively prevented from leaking when the valve is closed, so that the extrusion effect enhances the sealing of the valve and can prevent the medium from leaking out. The rotation reserved groove 112 solves the problem of the valve core assembly In order to solve the friction problem that may occur during the rotation operation of component 4, by designing a reasonable space and shape, the rotation reserved groove 112 allows the valve core component 4 to rotate freely without interfering with the leakage-proof component 11, thereby reducing the operating torque and extending the service life of the valve. When the valve core component 4 rotates, the damping spring 113 can provide appropriate expansion space to adapt to the position change of the fixing ring 111 when the valve is opened or closed. Especially when the valve is closed, the elastic force of the damping spring 113 will help to further tighten the closed leakage-proof leather pad 44 to enhance the leakage-proof effect.

[0027] Further, such as Figure 5 As shown: a semicircular valve core 41 is sleeved on the connecting shaft 42, a fixing plate 43 is provided at one end of the semicircular valve core 41, and a leak-proof leather pad 44 is sleeved on the outer side of the fixing plate 43. The semicircular valve core 41 is directly driven to rotate accordingly by rotating the connecting shaft 42. When the operator rotates the connecting shaft 42, the semicircular valve core 41 rotates accordingly, and then performs a closing action through the fixing plate 43 installed on its outer side, thereby cutting off the medium flowing through the valve. In order to enhance the sealing performance of the valve, the leak-proof leather pad 44 is arranged on the key contact surface, which can effectively fill the small gap that may exist between the valve body 1 and the valve core, thereby providing an additional leak-proof barrier.

[0028] When the device is used for a long time, the rotating shaft 12 is exposed to the outside for a long time and is prone to damage, such as Figure 4 As shown: a top pipe 5 is arranged on the top of the valve body 1, a flange 2 6 is arranged on the top of the top pipe 5, a protective tube 7 is arranged on the top of the flange 2 6, a rotating shaft 12 is arranged on the inner side of the protective tube 7, and the top pipe 5 on the top of the valve body 1 is connected to the flange 2 6 to form an interface between the valve and the pipeline system. The protective tube 7 is installed above the flange 2 6. Such a structural design effectively isolates and protects the rotating shaft 12. The protective tube 7 can not only prevent external factors from causing potential damage to the rotating shaft 12, such as moisture, dust or other corrosive substances from the external environment, but also reduce possible injuries to the staff during operation. In addition, the design of the protective tube 7 simplifies the maintenance and maintenance of the rotating shaft 12, ensuring the long-term and stable operation of the hemispherical valve.

[0029] Working principle:

[0030] like Figure 1-4 As shown:

[0031] When in use: pressure is applied to the leak-proof leather pad 44 through the fixing ring 111 to enhance the sealing performance when the valve is closed and prevent medium leakage. The rotation reserved groove 112 provides the necessary space so that the valve core assembly 4 can rotate smoothly without interfering with the leak-proof assembly 11, reducing friction and wear during operation. The damping spring 113 plays the role of buffering and position correction in the rotation of the valve core assembly 4, so that the fixing ring 111 maintains the appropriate position during expansion and contraction, and provides additional squeezing force when the valve is closed to enhance the leak-proof effect. The damping spring 113 can also firmly fix the leak-proof assembly 11 on the connecting pipe 2 to ensure To ensure the stability of the assembly, the top pipe 5 on the top of the valve body 1 is connected to the flange 6, and the protective tube 7 provides protection for the rotating shaft 12, isolating the external environment and rotating parts, avoiding potential damage and pollution, thereby reducing maintenance costs and improving the reliability of the equipment. The semicircular valve core 41 is driven to rotate by the rotation of the connecting shaft 42, and the closing action of the hemispherical valve is achieved through the fixed plate 43. The leak-proof leather pad 44 further enhances the sealing of the valve and effectively prevents the escape of the medium. At the same time, the rotating wheel 10 is connected to the rotating shaft 12 through the fixed rod 9 and the connecting plate 8, driving the entire equipment to operate, thereby achieving precise control of the flowing medium.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A leakproof eccentric hemispherical valve, comprising a valve body (1), characterized in that: Both ends of the valve body (1) are provided with connecting pipes (2), both ends of the connecting pipe (2) are provided with flanges (3), a groove is provided on one side of the connecting pipe (2) close to the valve body (1), and a leak-proof component (11) is provided on the connecting pipe (2) through the groove; The anti-leakage component (11) comprises a fixing ring (111), one side of the fixing ring (111) is provided with a rotation reserved groove (112), and a damping spring (113) is provided on the side of the fixing ring (111) away from the rotation reserved groove (112).

2. The leakproof eccentric hemispherical valve according to claim 1, characterized in that: The other end of the damping spring (113) is fixed on the connecting pipe (2).

3. The leakproof eccentric hemispherical valve according to claim 1, characterized in that: A top pipe (5) is arranged on the top of the valve body (1), a second flange (6) is arranged on the top of the top pipe (5), a protection pipe (7) is arranged on the top of the second flange (6), and a rotating shaft (12) is arranged inside the protection pipe (7).

4. The leakproof eccentric hemispherical valve according to claim 3, characterized in that: A connecting plate (8) is provided on the top of the protection tube (7), a fixing rod (9) is provided on one side of the connecting plate (8), and a rotating wheel (10) is provided on the fixing rod (9).

5. The leakproof eccentric hemispherical valve according to claim 3, characterized in that: A valve core assembly (4) is provided at the bottom of the rotating shaft (12), and the valve core assembly (4) comprises a connecting shaft (42).

6. The leakproof eccentric hemispherical valve according to claim 5, characterized in that: A semicircular valve core (41) is sleeved on the connecting shaft (42), a fixing plate (43) is provided at one end of the semicircular valve core (41), and a leak-proof leather pad (44) is sleeved on the outer side of the fixing plate (43).

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