Hollow sleeve type valve ball

Abstract

The utility model discloses a hollow sleeve type valve ball which comprises a ball shell and a sleeve, a middle cavity is arranged in the ball shell, two ends of the ball shell are respectively provided with a flow channel opening communicated with the middle cavity, the sleeve is arranged in the middle cavity of the ball shell, and two ends of the sleeve are respectively connected with the corresponding flow channel openings. A plurality of supporting pieces are further arranged on the inner wall of the middle cavity. Due to the adoption of the hollow structure, the use of raw materials is reduced, the cost is lower, the weight is lighter, the operation is more time-saving and labor-saving, the quality is easy to guarantee, and the structure is more reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of valve structures, in particular to a hollow sleeve type valve ball. Background Art

[0002] Ball valves are widely used in fluid control. In fluid control applications, ball valves are mainly used in pipelines to open, close, distribute the flow of fluid media, change the flow direction and flow rate of fluid media, etc.

[0003] Nowadays, the ball valve ball is generally made by casting. The ball is solid except for the diameter part. The raw materials are consumed more and the cost is high. The quality control of casting cannot be guaranteed. The ball is prone to manufacturing defects such as sand holes. In addition, the solid ball is heavy, and the operation is more time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a hollow sleeve valve ball. The utility model adopts a hollow structure, which not only reduces the use of raw materials, has lower costs, lighter weight, and saves time and effort in operation, but also makes it easy to ensure quality and has a more reasonable structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hollow sleeve valve ball, comprising a ball shell and a sleeve, wherein a middle cavity is provided in the ball shell, and a flow channel opening connected to the middle cavity is respectively provided at both ends of the ball shell, the sleeve is arranged in the middle cavity of the ball shell, and the two ends of the sleeve are respectively connected to the corresponding flow channel openings, and a plurality of support members are also arranged on the inner wall of the middle cavity.

[0006] By adopting the above technical solution, the valve ball is composed of a ball shell and a sleeve, and the sleeve is installed in the middle cavity of the ball shell, so that the valve ball forms a non-solid structure with an internal hollow, and multiple support members are arranged on the inner wall of the middle cavity of the ball shell to improve the strength of the ball shell. It can be seen that the hollow structure of the ball valve not only reduces the use of raw materials, has lower costs, is lighter, and is more time-saving and labor-saving to operate, but also makes it easier to ensure quality and has a more reasonable structure.

[0007] The utility model is further configured that a plurality of support members are distributed on the inner wall of the middle cavity in a circular array with the central axis of the sleeve as the center.

[0008] By adopting the above technical solution, the support members are evenly distributed, so that the force on the spherical shell can be more evenly distributed, thereby improving its strength and making it less prone to deformation.

[0009] The utility model is further configured that the support member is fixed on the inner wall of the cavity of the spherical shell by welding.

[0010] By adopting the above technical solution, the connection structure is simple and firm, and the processing is very convenient.

[0011] The utility model is further configured that the support member is an arc-shaped plate, and a side of the support member away from the sleeve is an arc-shaped shape that fits the inner wall of the middle cavity.

[0012] By adopting the above technical solution, the portion where the support member is connected to the inner wall of the middle cavity is an arc-shaped structure, which is consistent with the shape of the inner wall of the middle cavity, and can improve the firmness of the installation of the support member.

[0013] The utility model is further configured such that a side of the support member close to the sleeve is tightly pressed against the outer periphery of the sleeve.

[0014] By adopting the above technical solution, the support member has support points both inside and outside, the support points on the outside of the support member are connected to form a circular shape, and the support points on the inside of the support member form a circular shape, which can further improve the overall strength of the valve ball and thus improve its service life.

[0015] The utility model is further configured such that two ends of the sleeve are respectively welded to the flow passage openings corresponding to the spherical shell, and the outer end surface of the sleeve is flush with the outer end surface of the corresponding open flow passage opening.

[0016] By adopting the above technical solution, the connection structure is simple and firm, and the processing is very convenient.

[0017] The utility model is further configured that the inner edges of the spherical shell at both ends of the flow channel opening are provided with a first chamfer, and the outer edge of the outer end of the sleeve is provided with a second chamfer, and the first chamfer and the corresponding second chamfer are combined to form an annular solder cavity.

[0018] By adopting the above technical solution, the annular solder cavity formed by the first chamfer and the second chamfer, the solder is filled in the annular filler cavity, which increases the contact area between the spherical shell, the sleeve and the filler, and can improve the reliability of the connection between the spherical shell and the sleeve.

[0019] The utility model is further configured that an upper processing axis and a lower processing axis are respectively provided at the upper part and the lower part of the middle cavity of the spherical shell, and the upper processing axis and the lower processing axis are coaxially arranged.

[0020] By adopting the above technical solution, the upper processing axis and the lower processing axis can provide processing space for processing slots at the upper and lower ends of the valve ball in the later stage.

[0021] The utility model is further configured that an upper shaft hole and a lower shaft hole are respectively penetrated through the upper and lower parts of the spherical shell, the upper end of the upper processing shaft is welded to the upper shaft hole, and the lower end of the lower processing shaft is welded to the lower shaft hole.

[0022] By adopting the above technical solution, the connection structure is simple and firm, and the processing is very convenient.

[0023] The utility model is further configured that the spherical shell is formed by cold heading of a plate.

[0024] By adopting the above technical solution, the surface of the processed spherical shell is smooth, the density of each part is uniform, and the quality is easier to ensure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the utility model as a whole;

[0026] Figure 2 An exploded view of the utility model as a whole;

[0027] Figure 3 It is a top view of the utility model as a whole;

[0028] Figure 4 for Figure 3 AA section view;

[0029] Figure 5 for Figure 3 BB cross-sectional view;

[0030] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part A in the middle.

[0031] In the figure: 1, spherical shell; 2, sleeve; 3, middle cavity; 4, flow channel outlet; 5, support member; 6, first chamfer; 7, second chamfer; 8, annular solder cavity; 9, upper processing shaft; 10, lower processing shaft; 11, upper shaft hole; 12, lower shaft hole. DETAILED DESCRIPTION

[0032] 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.

[0033] Example: As shown in the attached Figures 1 to 6A hollow sleeve valve ball shown in the figure comprises a ball shell 1 and a sleeve 2, wherein a middle cavity 3 is provided in the ball shell 1, and a flow passage 4 communicating with the middle cavity 3 is respectively provided at the left and right ends of the ball shell 1, wherein the sleeve 2 is arranged in the middle cavity 3 of the ball shell 1, and the two ends of the sleeve 2 are respectively connected to the corresponding flow passage 4, and a plurality of support members 5 are also arranged on the inner wall of the middle cavity 3, and the support members 5 are flat plates. The valve ball is composed of the ball shell 1 and the sleeve 2, and the sleeve 2 is installed in the middle cavity 3 of the ball shell 1, so that the valve ball forms a non-solid structure with an internal hollow, and a plurality of support members 5 are arranged on the inner wall of the middle cavity 3 of the ball shell 1 to improve the strength of the ball shell 1. It can be seen that the hollow structure of the ball valve not only reduces the use of raw materials, but also has lower costs, lighter weight, and more time-saving and labor-saving operation, and is easy to ensure quality and has a more reasonable structure.

[0034] As attached Figure 4 As shown, a plurality of support members 5 are distributed in a circular array on the inner wall of the middle cavity 3 with the central axis of the sleeve 2 as the center. The support members 5 are evenly distributed, so that the force on the spherical shell 1 is more evenly applied, the strength thereof is improved, and the spherical shell 1 is less likely to deform.

[0035] The support member 5 is fixed to the inner wall of the cavity 3 of the spherical shell 1 by welding. The connection structure of this design is simple and firm, and the processing is very convenient.

[0036] As attached Figure 2 and attached Figure 4 As shown, the support member 5 is an arc-shaped plate, and the side of the support member 5 away from the sleeve 2 is an arc-shaped shape that fits the inner wall of the middle cavity 3, that is, the arc-shaped portion of the support member 5 is welded to the inner wall of the middle cavity 3. The portion where the support member 5 is connected to the inner wall of the middle cavity 3 is an arc-shaped structure, which is consistent with the shape of the inner wall of the middle cavity 3, and can improve the firmness of the installation of the support member 5.

[0037] As attached Figure 4 As shown, the side of the support member 5 close to the sleeve 2 is tightly against the outer periphery of the sleeve 2. The support member 5 has support points both inside and outside, the support points on the outside of the support member 5 are connected to form a circular shape, and the support points on the inside of the support member 5 form a circular shape, which can further improve the overall strength of the valve ball and thus improve its service life.

[0038] As attached Figure 5 and attached Figure 6 As shown, the two ends of the sleeve 2 are respectively welded to the corresponding flow openings 4 of the spherical shell 1, and the outer end surface of the sleeve 2 is flush with the outer end surface of the corresponding flow opening 4. The connection structure of this design is simple and firm, and the processing is very convenient.

[0039] As attached Figure 5 and attached Figure 6As shown, the inner edges of the two ends of the spherical shell 1 corresponding to the flow channel opening 4 are provided with first chamfers 6, and the outer edge of the outer end of the sleeve 2 is provided with second chamfers 7. The first chamfer 6 and the corresponding second chamfer 7 are combined to form an annular solder cavity 8, and the cross section of the annular solder cavity 8 is fan-shaped. The annular solder cavity 8 formed by the first chamfer 6 and the second chamfer 7, the solder is filled in the annular filler cavity, which increases the contact area between the spherical shell 1, the sleeve 2 and the filler, and can improve the reliability of the connection between the spherical shell 1 and the sleeve 2.

[0040] As attached Figure 5 As shown, the upper and lower parts of the cavity 3 in the ball shell 1 are respectively provided with an upper processing shaft 9 and a lower processing shaft 10, and the upper processing shaft 9 and the lower processing shaft 10 are coaxially arranged. The upper processing shaft 9 and the lower processing shaft 10 can provide processing space for processing slots at the upper and lower ends of the valve ball in the later stage. During the specific implementation, the customer can choose whether to process on the upper processing shaft 9 and the lower processing shaft 10. If processing is required, a circular groove can be processed on the lower processing shaft 10 for rotational cooperation with the support shaft, and a rectangular groove is provided on the upper processing shaft 9 for mortise and tenon cooperation with the rectangular linkage part on the valve stem.

[0041] As attached Figure 5 As shown, the upper and lower parts of the spherical shell 1 are respectively penetrated with an upper shaft hole 11 and a lower shaft hole 12, the upper end of the upper processing shaft 9 is welded to the upper shaft hole 11, and the lower end of the lower processing shaft 10 is welded to the lower shaft hole 12. The connection structure of this design is simple and firm, and the processing is very convenient.

[0042] In addition, the spherical shell 1 is formed by cold heading of a plate, and the processed spherical shell 1 has a smooth surface and uniform density in each part, making it easier to ensure quality.

Claims

1. A hollow sleeve valve ball, characterized in that: The invention comprises a spherical shell (1) and a sleeve (2), wherein a middle cavity (3) is provided in the spherical shell (1), and a flow passage (4) connected to the middle cavity (3) is respectively provided at two ends of the spherical shell (1), the sleeve (2) is arranged in the middle cavity (3) of the spherical shell (1), and the two ends of the sleeve (2) are respectively connected to the corresponding flow passage (4), and a plurality of support members (5) are also arranged on the inner wall of the middle cavity (3); the plurality of support members (5) are distributed on the inner wall of the middle cavity (3) in a circular array with the central axis of the sleeve (2) as the center; the support member (5) is fixed to the inner wall of the middle cavity (3) of the spherical shell (1) by welding; the support member (5) is an arc-shaped plate, and the side of the support member (5) away from the sleeve (2) is an arc-shaped shape that fits the inner wall of the middle cavity (3); the side of the support member (5) close to the sleeve (2) is tightly against the outer periphery of the sleeve (2).

2. A hollow sleeve valve ball according to claim 1, characterized in that: The two ends of the sleeve (2) are respectively welded to the corresponding flow channel openings (4) of the spherical shell (1), and the outer end surface of the sleeve (2) is flush with the outer end surface of the corresponding open flow channel opening (4).

3. A hollow sleeve valve ball according to claim 2, characterized in that: The spherical shell (1) is provided with a first chamfer (6) at the inner edge of the two ends corresponding to the flow channel opening (4), and the outer edge of the outer end of the sleeve (2) is provided with a second chamfer (7), and the first chamfer (6) and the corresponding second chamfer (7) are combined to form an annular solder cavity (8).

4. The hollow sleeve valve ball according to claim 1, characterized in that: An upper processing shaft (9) and a lower processing shaft (10) are respectively arranged at the upper part and the lower part of the middle cavity (3) of the spherical shell (1), and the upper processing shaft (9) and the lower processing shaft (10) are coaxially arranged.

5. The hollow sleeve valve ball according to claim 4, characterized in that: An upper shaft hole (11) and a lower shaft hole (12) are respectively provided through the upper and lower parts of the spherical shell (1); the upper end of the upper processing shaft (9) is welded to the upper shaft hole (11), and the lower end of the lower processing shaft (10) is welded to the lower shaft hole (12).

6. The hollow sleeve valve ball according to claim 1, characterized in that: The spherical shell (1) is formed by cold heading of a plate.

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