Novel handle valve with high sealing performance

Abstract

The utility model relates to the technical field of straight-through valves, in particular to a novel handle valve with high sealing performance, which comprises a valve body, a valve core and a handle, the valve body is cylindrical, a first connecting end and a second connecting end are respectively fixed at two ends of the valve body, a rectangular sealing cushion block is fixed inside the valve body at the joint of the first connecting end and the second connecting end, and the rectangular sealing cushion block is provided with a through hole along the horizontal direction. The aperture of the through hole is the same as that of the valve core hole; a stepped annular groove is formed in the inner wall of the valve body, the depth of the stepped annular groove is gradually increased in the opening direction of the valve body, and a plurality of limiting blocks are fixed to the edge of the valve body. A quick connecting nozzle is fixed at the end part of the second connecting end; the valve element is fixed to a connecting plate, the connecting plate is installed above the valve body, and an upper sealing plate and a lower sealing plate are arranged on the upper edge and the lower edge of the connecting plate respectively. The multi-sealing structure comprises the rectangular sealing cushion block, the upper sealing plate and the lower sealing plate, the sealing effect of the valve body is remarkably enhanced, and leakage is reduced. The first connecting end and the second connecting end can be connected with various pipelines, universality is high, and connection is tight.

Description

Technical Field

[0001] This utility model relates to the field of straight-through valve technology, and in particular to a new handle valve with high sealing performance. Background Technology

[0002] In civil fluid transport systems, handle valves are key components used to control fluid flow or regulate flow rate. Handle ball valves mainly consist of a valve body, a ball, a stem, and a handle. The valve body contains a ball with a through-hole; the stem is connected to the ball, and the handle is fixed to the end of the stem. Sealing is achieved through tight contact between the valve seat and the ball. The valve seat is typically made of a soft material, such as polytetrafluoroethylene (PTFE), to improve sealing performance. When the valve is closed, the handle rotates the ball, aligning the through-hole on the ball with the valve body channel, thus achieving the closing function. At this point, the valve seat and ball are tightly fitted, preventing media flow. Existing handle valves suffer from poor sealing performance, are prone to leakage after prolonged use, and have a short service life. Therefore, frequent sealing checks are necessary, which is time-consuming and labor-intensive.

[0003] Based on this, this utility model designs a new handle valve with high sealing performance to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a new handle valve with high sealing performance to solve the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A novel high-sealing handle valve includes a valve body, a valve core, and a handle. The valve body is cylindrical, with a first connecting end and a second connecting end fixed at both ends. A rectangular sealing gasket is fixed inside the valve body at the connection point. The rectangular sealing gasket has a through hole in the horizontal direction, and the diameter of the through hole is the same as the diameter of the valve core hole. A stepped annular groove is formed on the inner wall of the valve body, and the depth of the stepped annular groove gradually increases towards the opening of the valve body. Several limiting blocks are fixed to the edge of the valve body. A quick-connect fitting is fixed to the end of the second connecting end. The valve core is fixed on a connecting plate, which is installed above the valve body. An upper sealing plate and a lower sealing plate are respectively provided on the upper and lower edges of the connecting plate.

[0007] The inner diameter of the quick-connect fitting is smaller than that of the second connection end. An expanding ring is installed on the quick-connect fitting, and the diameter of the expanding ring gradually increases from the end towards the valve body.

[0008] Both the first and second connecting ends are provided with a limiting baffle and a threaded sleeve from the inside out.

[0009] The handle is mounted on the upper surface of the upper sealing plate, and the handle is a butterfly handle.

[0010] The stepped annular grooves, extending from the valve body inwards, include a first annular groove and a second annular groove, which respectively fit against the outer edges of the upper sealing plate and the lower sealing plate.

[0011] The lower surface of the lower sealing plate is attached to the upper surface of the rectangular sealing gasket.

[0012] This utility model has the following beneficial effects:

[0013] The valve body's sealing performance is improved and the risk of leakage is reduced through a multi-seal structure consisting of a rectangular sealing gasket, an upper sealing plate, and a lower sealing plate. The first and second connecting ends can be connected to pipes of various specifications, offering strong versatility and a tight connection. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the valve body structure;

[0017] Figure 3 This is a schematic diagram of the valve core structure.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Valve body; 2. First connecting end; 3. Second connecting end; 4. Quick connector; 5. Valve core; 6. Handle; 7. Rectangular sealing gasket; 8. Through hole; 9. Valve core hole; 10. Limiting block; 11. Connecting plate; 12. Upper sealing plate; 13. Lower sealing plate; 14. First annular groove; 15. Second annular groove; 16. Expanding ring; 17. Limiting baffle; 18. Threaded sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the terms "upper", "middle", "outer", "inner", "lower" etc., which indicate orientation or positional relationship, are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] The attached figures illustrate specific embodiments of this utility model, such as... Figures 1-3As shown, this utility model is a new type of high-sealing handle valve, including a valve body 1, a valve core 5, and a handle 6. The valve body 1 is cylindrical, with a first connecting end 2 and a second connecting end 3 fixed at both ends, respectively. A rectangular sealing gasket 7 is fixed inside the valve body 1 at the connection point. The valve core 5 is spherical, and the contact surface between the rectangular sealing gasket 7 and the valve core 5 is arc-shaped, matching the spherical center of the valve core 5. The rectangular sealing gasket 7 has a through hole 8 in the horizontal direction, and a valve core hole 9 on the spherical center. The diameter of the through hole 8 is the same as the diameter of the valve core hole 9. When open, the valve core hole 9 is aligned with the through hole 8, and water can flow through the valve body 1. When closed, the spherical outer wall of the valve core 5 is tightly fitted with the contact surface of the rectangular sealing gasket 7. During long-term use, slight deformation will not affect the sealing between the valve core 5 and the rectangular sealing gasket 7, thereby extending the service life of the valve. A stepped annular groove is formed on the inner wall of the valve body 1. The depth of the stepped annular groove increases gradually towards the opening of the valve body 1. The stepped annular groove fits with the outer edges of the upper and lower sealing plates to form a multi-layer sealing structure, which enhances the overall sealing performance of the valve body. The valve core 5 is fixed on the connecting plate 11, which is installed above the valve body 1. The upper and lower edges of the connecting plate 11 are respectively provided with an upper sealing plate 12 and a lower sealing plate 13. The lower surface of the lower sealing plate 13 fits with the upper surface of the rectangular sealing gasket 7.

[0022] Handle 6 is mounted on the upper surface of the upper sealing plate 12. Handle 6 is a butterfly handle, which is easy to rotate and saves space. Several limiting blocks 10 are fixed to the edge of the valve body 1. The stepped annular groove includes a first annular groove 14 and a second annular groove 15 from the outside to the inside of the valve body 1. These grooves fit against the outer edges of the upper sealing plate 12 and the lower sealing plate 13, respectively. Together with the limiting blocks 10 on the edge of the valve body 1, they can prevent excessive rotation or misalignment when rotating the butterfly handle. A quick-connect nozzle 4 is fixed to the end of the second connecting end 3. The inner diameter of the quick-connect nozzle 4 is smaller than that of the second connecting end 3, which acts as a water pressure, reducing the impact of water flow on the valve body 1 and extending the service life of the valve body 1. An expanding ring 16 is installed on the quick-connect nozzle 4. The diameter of the expanding ring 16 gradually increases from the end towards the valve body 1. The material of the expanding ring 16 is the same as that of the sealing gasket. Like a plug, it reduces the risk of leakage at the connection and can also quickly achieve pipeline connection.

[0023] Both the first connecting end 2 and the second connecting end 3 are provided with a limiting baffle 17 and a threaded sleeve 18 from the inside out. The threaded sleeve 18 serves to seal and guide, making rotational insertion easier. The limiting baffle 17 is used to hold the cross-section of the pipe to be inserted, thus limiting the insertion. The outer diameter of the threaded sleeve 18 is larger than the outer diameter of the quick connector 4. After the pipe is inserted, a certain space will be formed between the inner wall of the pipe and the outer wall of the quick connector 4. This makes insertion easier when both the pipe and the connecting end are wet. Excess liquid collected after insertion will be stored in this space, preventing leakage.

[0024] When in use, rotate the pipe and insert it into the two connection ends to connect the handle valve to the pipe.

[0025] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to specific implementation methods.

Claims

1. A novel high-sealing handle valve, comprising a valve body (1), a valve core (5), and a handle (6), characterized in that: The valve body (1) is cylindrical, with a first connecting end (2) and a second connecting end (3) fixed at both ends respectively. A rectangular sealing gasket (7) is fixed inside the valve body (1) at the connection point. The rectangular sealing gasket (7) has a through hole (8) in the horizontal direction. The diameter of the through hole (8) is the same as the diameter of the valve core hole (9). A stepped annular groove is opened on the inner wall of the valve body (1). The depth of the stepped annular groove increases gradually towards the opening direction of the valve body (1). Several limiting blocks (10) are fixed on the edge of the valve body (1). A quick connector (4) is fixed at the end of the second connecting end (3). The valve core (5) is fixed on the connecting plate (11). The connecting plate (11) is installed above the valve body (1). The upper and lower edges of the connecting plate (11) are respectively provided with an upper sealing plate (12) and a lower sealing plate (13).

2. The novel high-sealing handle valve according to claim 1, characterized in that: The inner diameter of the quick connector (4) is smaller than that of the second connection end (3). A gradually expanding ring (16) is installed on the quick connector (4). The diameter of the gradually expanding ring (16) gradually increases from the end towards the valve body (1).

3. The novel high-sealing handle valve according to claim 1, characterized in that: Both the first connecting end (2) and the second connecting end (3) are provided with a limiting baffle (17) and a threaded sleeve (18) from the inside out.

4. The novel high-sealing handle valve according to claim 1, characterized in that: The handle (6) is installed on the upper surface of the upper sealing plate (12), and the handle (6) is a butterfly handle.

5. A novel high-sealing handle valve according to claim 1, characterized in that: The stepped annular grooves include a first annular groove (14) and a second annular groove (15) from the outside to the inside of the valve body (1), which respectively fit with the outer edges of the upper sealing plate (12) and the lower sealing plate (13).

6. A novel high-sealing handle valve according to claim 1, characterized in that: The lower surface of the lower sealing plate (13) is attached to the upper surface of the rectangular sealing gasket (7).

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