Valve ball

Abstract

The utility model discloses a valve ball which comprises a ball body, a connecting channel arranged on the ball body, an upper butt joint part arranged on the upper portion of the ball body and a lower butt joint part located on the lower portion of the ball body. A sliding structure is arranged between the lower butt joint part and the ball body, the lower butt joint part and the ball body can relatively move in the direction from the lower butt joint part to the upper butt joint part through the sliding structure, and an adjusting assembly is arranged between the ball body and the lower butt joint part and used for adjusting the distance between the ball body and the lower butt joint part in the direction of the sliding structure. And the locking assembly limits the action of the adjusting assembly and has a locking state and a non-locking state. The utility model has the following advantages and effects: the horizontal installation height of the valve can be adjusted, so as to ensure the sealing grade and the service life of the valve in the later period.

Description

Technical Field

[0001] The utility model relates to a valve component, in particular to a valve ball. Background Art

[0002] The valve ball is a key component in a valve. It is typically spherical, with a central channel. Rotating, the ball controls the flow of the valve, thereby controlling the flow of the medium. The ball is typically made of materials such as stainless steel, copper, and cast iron, all of which offer excellent corrosion resistance and mechanical properties.

[0003] There are two main types of valve sealing: soft sealing and hard sealing. Hard sealing mainly achieves sealing through hard contact between the valve seat and the ball. This type of sealing requires extremely high precision in the fit between the two. The fit precision mainly depends on the horizontal installation height of the ball. Only when the center height of the ball and the axis height of the valve seat are on the same horizontal line can the ball and the valve seat achieve a tight fit and seal. Existing design structures all adjust the height of the ball by adding an adjustment component to the valve body. However, some valves are affected by their shape, type and structure, and it is impossible to set an adjustment component on the valve body below the ball. This will make it difficult for the valve to accurately control the fit precision between the ball and the valve seat, ultimately affecting the sealing level and service life of the valve. Utility Model Content

[0004] The utility model aims to provide a valve ball, the horizontal installation height of which can be adjusted to ensure the sealing level and service life of the valve in the later stage.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a valve ball, including a ball body, a connecting channel arranged on the ball body, an upper docking part arranged above the ball body, and a lower docking part located below the ball body, a sliding structure is provided between the lower docking part and the ball body for relative movement of the two along the direction from the lower docking part to the upper docking part, an adjustment component is provided between the ball body and the lower docking part for adjusting the distance between the two along the direction of the sliding structure, and also includes a locking component, which limits the action of the adjustment component and has a locked state and an unlocked state.

[0006] By employing this technical solution, the adjustment assembly, in conjunction with the sliding structure, adjusts the distance between the sphere body and the lower docking portion, achieving horizontal height adjustment of the sphere body, thereby ensuring the valve's sealing level and service life. Once the sphere body is adjusted to the desired height, a locking assembly locks the adjustment assembly, preventing it from loosening during use and ensuring its reliability.

[0007] It is further configured that: the sliding structure includes a sliding post and a sliding hole for inserting the sliding post, and the sliding post cooperates with the sliding hole to limit the relative movement of the spherical body and the lower docking portion along the horizontal direction.

[0008] By adopting the above technical solution, the sliding post cooperates with the sliding hole to constitute a horizontal limit for the spherical body and the lower docking part on the basis of realizing the sliding of the two, so as to ensure the sliding limit accuracy between the two.

[0009] It is further configured as follows: the adjustment assembly includes a connecting ring arranged on the lower docking part and surrounding the lower docking part, and a plurality of adjusting bolts threadedly connected to the connecting ring and abutting against the bottom of the spherical body, the plurality of adjusting bolts are distributed around the connecting ring and the axis of the adjusting bolts is parallel to the direction from the upper docking part to the lower docking part.

[0010] By adopting the above technical solution, the adjusting bolt abuts against the bottom of the spherical body to adjust the distance between the spherical body and the lower docking portion, and realizes stepless adjustment between the two.

[0011] It is further configured as follows: the spherical body and the lower docking portion rotate circumferentially, the bottom of the spherical body corresponding to the position of the adjusting bolt is recessed inward to form a limiting groove corresponding to the rotation path of the adjusting bolt, and a plane bearing is provided between the limiting groove and the adjusting bolt.

[0012] By adopting the above technical solution, the setting of the limit groove is used to limit the installation position of the plane bearing, so as to achieve stable installation of the plane bearing; and the setting of the plane bearing is used to reduce the wear of the adjusting bolt during the rotation process, so as to ensure the installation accuracy and service life of the ball.

[0013] It is further configured that: the locking assembly includes a locking ring slidably arranged on the lower docking portion along the axis of the adjusting bolt, a driving spring that drives the locking ring to press against each adjusting bolt, and a friction locking structure formed between each adjusting bolt and the locking ring.

[0014] By adopting the above technical solution, the driving locking ring compresses the driving spring to separate the adjusting bolt and the locking ring, so that the adjusting bolt can be adjusted; when the adjusting bolt is adjusted to the required position, the force acting on the locking ring is released, so that the locking ring is pressed against the adjusting bolt under the action of the driving spring and cooperates with the provided friction locking structure to form a lock, thereby preventing the adjusting bolt from loosening during use.

[0015] It is further configured that: the friction locking structure includes a main friction surface formed at a position where the locking ring abuts against the adjusting bolt, and a secondary friction surface formed on each adjusting bolt corresponding to the main friction surface.

[0016] By adopting the above technical solution, the friction resistance formed by the main friction surface and the secondary friction surface is used to prevent the adjusting bolt from loosening, thereby achieving a locking effect.

[0017] It is further configured that: the locking assembly is located on a side of the adjusting bolt head close to the spherical body.

[0018] It is further configured that: the primary friction surface abuts against the secondary friction surface to form an inclined contact structure.

[0019] By adopting the above technical solution, stable contact with each secondary friction surface can be achieved.

[0020] In summary, the utility model has the following beneficial effects: the utility model can adjust its horizontal installation height, thereby ensuring the sealing level and service life of the valve in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of an embodiment;

[0022] Figure 2 A structural diagram of another perspective of the embodiment;

[0023] Figure 3 is a cross-sectional view of an embodiment;

[0024] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0025] In the figure: 1. spherical body; 2. connecting channel; 3. upper docking part; 4. lower docking part; 51. sliding column; 52. sliding hole; 61. connecting ring; 62. adjusting bolt; 7. limiting groove; 8. plane bearing; 91. locking ring; 92. driving spring; 93. primary friction surface; 94. secondary friction surface. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 4 A valve ball includes a ball body 1, a connecting channel 2 defined in the ball body 1, an upper docking portion 3 integrally formed above the ball body 1, and a lower docking portion 4 located below the ball body 1. A sliding structure is provided between the lower docking portion 4 and the ball body 1, allowing the two to move relative to each other along the direction from the lower docking portion 4 to the upper docking portion 3. An adjustment assembly is provided between the ball body 1 and the lower docking portion 4 for adjusting the distance between the two along the direction of the sliding structure. The adjustment assembly also includes a locking assembly that limits the movement of the adjustment assembly and has a locked state and an unlocked state.

[0028] The sliding structure includes a slide post 51 integrally provided at the bottom of the spherical body 1 and a slide hole 52 provided in the lower docking portion 4 for the slide post 51 to be inserted into. The slide post 51 cooperates with the slide hole 52 to restrict the horizontal movement of the spherical body 1 and the lower docking portion 4 and the two cooperate in circumferential rotation.

[0029] The adjustment assembly includes a connecting ring 61 integrally mounted on and surrounding the lower docking portion 4, and a plurality of adjusting bolts 62 passing through and threadedly connected to the connecting ring 61 and abutting the bottom of the spherical body 1. The adjusting bolts 62 are distributed around the connecting ring 61, and the axes of the adjusting bolts 62 are parallel to the direction from the upper docking portion 3 to the lower docking portion 4.

[0030] The bottom of the spherical body 1 is recessed inward at a position corresponding to the adjusting bolt 62 to form a limiting groove 7 corresponding to the rotation path of the adjusting bolt 62 , and a plane bearing 8 is provided between the limiting groove 7 and the adjusting bolt 62 .

[0031] The locking assembly is located on the side of the head of the adjusting bolt 62 that is closest to the spherical body 1. It includes a locking ring 91 that fits over the lower docking portion 4 and slides with the lower docking portion 4 along the axis of the adjusting bolt 62; a drive spring 92 that drives the locking ring 91 against each adjusting bolt 62; and a friction locking structure formed between the head of each adjusting bolt 62 and the locking ring 91. The friction locking structure includes a primary friction surface 93 formed at the position where the locking ring 91 abuts the adjusting bolt 62, and a secondary friction surface 94 formed on each adjusting bolt 62 that corresponds to the primary friction surface 93. The primary friction surface 93 abuts the secondary friction surface 94, forming an inclined contact structure. Both the primary friction surface 93 and the secondary friction surface 94 are rough friction surfaces formed by rolling, and the drive spring 92 fits over the lower docking portion 4.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A valve ball, comprising a ball body (1), a connecting channel (2) provided on the ball body (1), an upper docking portion (3) provided above the ball body (1), and a lower docking portion (4) located below the ball body (1), characterized in that: A sliding structure is provided between the lower docking portion (4) and the spherical body (1) for relative movement of the two in a direction from the lower docking portion (4) to the upper docking portion (3); an adjustment component is provided between the spherical body (1) and the lower docking portion (4) for adjusting the distance between the two in the direction of the sliding structure; and a locking component is also provided. The locking component limits the movement of the adjustment component and has a locked state and an unlocked state.

2. The valve ball according to claim 1, characterized in that: The sliding structure comprises a sliding post (51) and a sliding hole (52) for inserting the sliding post (51). The sliding post (51) cooperates with the sliding hole (52) to limit the relative movement of the spherical body (1) and the lower docking portion (4) in the horizontal direction.

3. The valve ball according to claim 1, characterized in that: The adjustment assembly comprises a connecting ring (61) arranged on the lower docking portion (4) and surrounding the lower docking portion (4), and a plurality of adjusting bolts (62) threadedly connected to the connecting ring (61) and abutting against the bottom of the spherical body (1), wherein the plurality of adjusting bolts (62) are distributed around the connecting ring (61) and the axes of the adjusting bolts (62) are parallel to the direction from the upper docking portion (3) to the lower docking portion (4).

4. The valve ball according to claim 3, characterized in that: The spherical body (1) and the lower docking portion (4) rotate circumferentially, and the bottom of the spherical body (1) is recessed inward at a position corresponding to the adjusting bolt (62) to form a limiting groove (7) corresponding to the rotation path of the adjusting bolt (62), and a plane bearing (8) is provided between the limiting groove (7) and the adjusting bolt (62).

5. The valve ball according to claim 3, characterized in that: The locking assembly comprises a locking ring (91) slidably arranged on the lower docking portion (4) along the axis of the adjusting bolt (62), a driving spring (92) driving the locking ring (91) to press against each adjusting bolt (62), and a friction locking structure formed between each adjusting bolt (62) and the locking ring (91).

6. The valve ball according to claim 5, characterized in that: The friction locking structure comprises a main friction surface (93) formed on the locking ring (91) at a position where the adjusting bolt (62) is pressed against the main friction surface (93), and a secondary friction surface (94) formed on each adjusting bolt (62) corresponding to the main friction surface (93).

7. The valve ball according to claim 5, characterized in that: The locking assembly is located on a side of the head of the adjusting bolt (62) close to the spherical body (1).

8. The valve ball according to claim 6, characterized in that: The primary friction surface (93) abuts against the secondary friction surface (94) to form an inclined contact structure.

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