Ball valve for segmented casting

Abstract

The utility model relates to the technical field of ball valves, and provides a ball valve for a segmented casting, which comprises a ball valve body, one end of the ball valve body is fixedly connected with a filter box, a filter assembly is arranged in the filter box, one end of the filter box is fixedly connected with a communicating pipe, the other end of the top end of the ball valve body is fixedly connected with a connecting cylinder, and the connecting cylinder is fixedly connected with a connecting rod. The top end of the connecting cylinder is rotatably connected with a handle, the lower end of one side of the handle is fixedly connected with a limiting block, the limiting block and the connecting cylinder are provided with an indicating assembly, and through the limiting block and the indicating assembly, the rotating angle of the limiting block can be clearly known through the scale indicating block; and meanwhile, the elastic force of the reset spring is utilized, so that the movable block can be clamped between the scale indication blocks, a certain limiting effect is achieved on rotation of the handle, and the situation that a pipeline is opened due to the fact that the handle is simply touched is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve for segmented castings. Background Art

[0002] Valves are control components in fluid conveying systems. There are many types of valves, and ball valves are one type of valve. They allow, hinder and control the flow of liquid, gas and steam in the pipeline system by rotating the ball with a hole in the valve. They have the advantages of easy opening and closing, reliable sealing, simple structure and easy maintenance. Therefore, they are widely used in various industries.

[0003] A search revealed an existing patent (publication number: CN220956913U) that discloses a ball valve comprising a connecting tube welded to the top of a ball valve housing. A ball opening and closing member is rotatably connected to the inner cavity of the ball valve housing, a rotating shaft is welded to the top of the ball opening and closing member, an L-shaped connecting piece is fixedly connected to the top of the connecting tube, the top of the rotating shaft passes through the inner cavities of the connecting tube and the L-shaped connecting piece and is fixedly connected to a rotating handle, and two plug posts are inserted into the top of the rotating handle. The utility model locks the rotating handle and the L-shaped connecting piece via the plug posts. When the rotating handle needs to be turned, the plug posts must be lifted upward to turn the handle. The provision of switch identification characters facilitates the user's identification of the ball valve's opening and closing direction, thereby avoiding waste caused by accidentally opening the ball valve by touching the rotating handle and facilitating user identification of the opening and closing direction.

[0004] However, in the above scheme, when turning to open, the user usually judges the angle of the handle to adjust the medium flow rate, and cannot know the actual handle rotation angle more accurately, resulting in low accuracy in medium flow rate control. At the same time, it is necessary to release the pull ring before turning it, which makes the opening and closing actions more cumbersome and inconvenient.

[0005] In view of this, the utility model provides a ball valve for segmented castings. Utility Model Content

[0006] The utility model provides a ball valve for segmented castings, which solves the problems in the related art that opening and closing the valve is complicated and inconvenient, and the rotation angle of the handle is difficult to control.

[0007] The technical solution of the utility model is as follows: a ball valve for segmented castings, comprising a ball valve body, one end of the ball valve body is fixedly connected to a filter box, a filter assembly is provided inside the filter box, one end of the filter box is fixedly connected to a connecting pipe, the other end of the top end of the ball valve body is fixedly connected to a connecting tube, the top end of the connecting tube is rotatably connected to a handle, the lower end of one side of the handle is fixedly connected to a limit block, and an indicator assembly is provided on the limit block and the connecting tube.

[0008] The indicating assembly includes a scale indicating block, which is fixedly connected to the top of the connecting tube at equal angles. A fixing groove is provided on one side of the inner side of the limit block. Return springs are fixedly connected on both sides of the inner wall of the fixing groove. One end of the return spring is fixedly connected to a sliding block, and one end of the sliding block is fixedly connected to a movable block extending to the outside of the limit block.

[0009] Preferably, one end of the scale indicating block and the movable block is rounded, and the movable block forms a sliding structure between the sliding block and the inside of the fixed groove.

[0010] Preferably, the filter assembly includes a reserved groove, which is opened at the top of the filter box, and the upper end of one side of the filter box is movably connected with a fixing bolt, and the other side of the top of the filter box is movably connected with a sealing plate, and bolt holes threadedly matched with the fixing bolts are opened at both ends of one side of the sealing plate, and the bottom end of the sealing plate is fixedly connected with a sieve plate extending to the inside of the filter box.

[0011] Preferably, a sealing ring is fixedly connected to the lower end of the sealing plate surface, and the shape of the sealing ring in a top view is a Chinese umbilical cord shape.

[0012] Preferably, a snap-fit ​​structure is formed between the lower end of the sealing plate and the interior of the reserved groove, and the cross-section of the sealing plate is inverted convex.

[0013] Preferably, the lower end of the sieve plate is U-shaped, and the top end of the sieve plate and one side of the bottom end of the sealing plate are welded into an integrated structure.

[0014] Preferably, elastic blocks are fixedly connected to both sides of the inner wall of the connecting tube, and the shape of the elastic blocks in a top view is U-shaped.

[0015] Preferably, the surface of the handle is covered with an anti-slip cover, and one end of the anti-slip cover is rounded.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] The utility model provides a limit block and an indicator assembly, and the scale indicator block can help the user to know the rotation angle of the limit block more clearly, and then know the rotation angle of the handle, so as to control the flow rate of the medium more accurately. At the same time, when the limit block is driven by the rotation of the handle, the movable block rotates and contacts with the scale indicator block, so that the handle rotates with a clicking sound, which is convenient for the user to know the rotation of the handle. After the handle is rotated to a suitable angle, the elastic force of the return spring can be used to make the movable block slide and clamp between the scale indicator blocks, so that there is a certain resistance to the rotation of the handle, which prevents the ball valve body from opening or the medium control rate from being changed due to accidental contact of the handle, and realizes a certain limit after the handle is rotated. At the same time, the rotation only requires one hand, making it more convenient to control and open, thereby improving its practicality.

[0018] The utility model provides a filter box and a filter assembly, and utilizes a sieve plate to filter the conveying medium, thereby avoiding wear of the opening and closing parts inside the ball valve body due to the conveying of harder impurities, thereby extending its service life. At the same time, the fixing bolts and the threads inside the bolt holes can be matched to facilitate the user to remove the sieve plate from the reserved groove through the sealing plate, so that the filtered impurities can be processed centrally. During installation, the sealing ring can be used to improve the sealing performance between the lower end of the sealing plate and the inside of the sealing ring, thereby avoiding medium leakage and improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0022] Figure 3 This is a schematic diagram of the overall partial cross-sectional structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the exploded and enlarged structure of the filter box of the utility model;

[0024] Figure 5 For the utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0025] In the figure: 1. Limit block; 2. Indicator assembly; 201. Scale indicator block; 202. Return spring; 203. Fixed groove; 204. Sliding block; 205. Movable block; 3. Connecting cylinder; 4. Ball valve body; 5. Connecting pipe; 6. Filter box; 7. Filter assembly; 701. Sealing plate; 702. Bolt hole; 703. Screen plate; 704. Fixing bolt; 705. Reserved groove; 706. Sealing ring; 8. Handle; 9. Anti-slip sleeve; 10. Elastic block. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0027] The preferred embodiment of the ball valve for segmented casting provided by the present invention is as follows: Figures 1 to 5As shown: A ball valve for segmented castings, including a ball valve body 4, one end of the ball valve body 4 is fixedly connected to a filter box 6, a filter assembly 7 is provided inside the filter box 6, one end of the filter box 6 is fixedly connected to a connecting pipe 5, the other end of the top of the ball valve body 4 is fixedly connected to a connecting tube 3, the top of the connecting tube 3 is rotatably connected to a handle 8, the lower end of one side of the handle 8 is fixedly connected to a limit block 1, and an indicator assembly 2 is provided on the limit block 1 and the connecting tube 3.

[0028] The indicating assembly 2 includes a scale indicating block 201, which is fixedly connected at an equal angle to the top of the connecting tube 3. A fixed groove 203 is provided on one side of the inner wall of the limit block 1. Return springs 202 are fixedly connected on both sides of the inner wall of the fixed groove 203. One end of the return spring 202 is fixedly connected to a sliding block 204. One end of the sliding block 204 is fixedly connected to a movable block 205 extending to the outside of the limit block 1. The scale indicating block 201 can help the user to know the rotation angle of the limit block 1 more clearly, and then know the rotation angle of the handle 8, so as to more accurately control the flow rate of the medium. At the same time, after the handle 8 is rotated to the appropriate angle, the elastic force of the return spring 202 can be used to make the movable block 205 slide between the scale indicating blocks 201, so that the handle 8 can be rotated with a certain resistance to avoid accidental touching of the handle 8, which may cause the ball valve body 4 to open or the medium control rate to change.

[0029] In this embodiment, one end of the scale indicator block 201 and the movable block 205 is rounded, and the movable block 205 forms a sliding structure between the sliding block 204 and the inside of the fixed groove 203. The rounded scale indicator block 201 and the movable block 205 make the rotation, contact and separation of the two smoother, avoiding rotation obstruction. Example 2

[0030] On the basis of Example 1, the preferred embodiment of the ball valve for segmented casting provided by the present invention is as follows: Figures 1 to 5 As shown: the filter assembly 7 includes a reserved groove 705, which is opened at the top of the filter box 6, and the upper end of one side of the filter box 6 is movably connected with a fixing bolt 704, and the other side of the top of the filter box 6 is movably connected with a sealing plate 701, and bolt holes 702 that are threadedly matched with the fixing bolts 704 are opened at both ends of one side of the sealing plate 701. The bottom end of the sealing plate 701 is fixedly connected with a sieve plate 703 extending to the inside of the filter box 6, and the sieve plate 703 is used to filter the conveying medium to avoid wear of the opening and closing parts inside the ball valve body 4 caused by the conveying of harder impurities, thereby extending its service life. At the same time, the fixing bolt 704 can be used to cooperate with the thread inside the bolt hole 702, so that the user can remove the sieve plate 703 from the reserved groove 705 through the sealing plate 701, and then the filtered impurities can be processed centrally.

[0031] In this embodiment, a sealing ring 706 is fixedly connected to the lower end of the surface of the sealing plate 701. The shape of the sealing ring 706 in the top view is a U-shape. The U-shaped sealing ring 706 is used to improve the sealing between the lower end of the sealing plate 701 and the inside of the sealing ring 706 to avoid medium leakage.

[0032] In this embodiment, a locking structure is formed between the lower end of the sealing plate 701 and the inside of the reserved groove 705. The cross-section of the sealing plate 701 is inverted convex. The locking of the lower end of the inverted convex sealing plate 701 and the inside of the reserved groove 705 ensures that the top of the reserved groove 705 is fully blocked and sealed.

[0033] In this embodiment, the lower end of the sieve plate 703 is U-shaped, and the top of the sieve plate 703 and one side of the bottom end of the sealing plate 701 are welded into an integrated structure. The U-shaped sieve plate 703 can be used to collect the filtered hard impurities, which is convenient for subsequent unified collection and processing.

[0034] Furthermore, elastic blocks 10 are fixedly connected to both sides of the inner wall of the connecting tube 3. The shape of the elastic block 10 in the top view is U-shaped. By utilizing the U-shaped elastic block 10, the limit block 1 can be rotated ninety degrees and then flexibly contact the surface of the connecting tube 3 to avoid hard collision and wear caused by excessive rotation.

[0035] In addition, the surface of the handle 8 is provided with an anti-slip cover 9 , one end of which is rounded. The anti-slip cover 9 allows the user to rotate the handle 8 more smoothly and comfortably.

[0036] The working principle and use process of the present invention are as follows: first, the ball valve body 4 is installed and fixed on a suitable pipe, and then the handle 8 is rotated to realize the rotation of the opening and closing member inside the ball valve body 4, so as to realize the regulation, opening or closing of the medium delivery rate, and the scale indicator block 201 can be used to facilitate the user to know the rotation angle of the limit block 1 more clearly, and then know the rotation angle of the handle 8, so as to more accurately control the medium flow rate. At the same time, when the handle 8 is rotated to drive the limit block 1 to rotate, the movable block 205 is rotated and contacted with the scale indicator block 201, so that the movable block 205 slides and drives the sliding block 204 to slide and compress the return spring 202, so that the handle 8 is rotated with a clicking sound, which is convenient for the user to know the rotation of the handle 8, and after the handle 8 is rotated to a suitable angle, the elastic force of the return spring 202 can be used to make the sliding block 204 slide and drive the movable block 205 to slide and be stuck between the scale indicator block 201, so that there is a certain resistance to the rotation of the handle 8, so as to avoid the handle 8 being accidentally touched, which may cause the ball valve body 4 to open or the medium control rate to change;

[0037] At the same time, during the medium conveying process, the sieve plate 703 can be used to filter the conveying medium to avoid the conveying of harder impurities and the wear of the opening and closing parts inside the ball valve body 4, thereby extending its service life. At the same time, the fixing bolt 704 can be rotated regularly until it is completely separated from the inside of the bolt hole 702, and then the sieve plate 703 can be taken out from the inside of the reserved groove 705 through the sealing plate 701, and the filtered impurities can be processed centrally. During installation, the sieve plate 703 is placed into the filter box 6 through the reserved groove 705, and then the sealing ring 706 is used to improve the sealing performance between the lower end of the sealing plate 701 and the inside of the sealing ring 706 to avoid medium leakage. After that, the fixing bolt 704 is tightened into the inside of the bolt hole 702 to ensure the firmness and stability of the sealing plate 701.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ball valve for segmented castings, comprising a ball valve body (4), characterized in that: One end of the ball valve body (4) is fixedly connected with a filter box (6). A filter component (7) is arranged inside the filter box (6). One end of the filter box (6) is fixedly connected with a connecting pipe (5). The other end of the top of the ball valve body (4) is fixedly connected with a connecting cylinder (3). The top of the connecting cylinder (3) is rotatably connected with a handle (8). A limiting block (1) is fixedly connected to the lower end of one side of the handle (8). An indicating component (2) is arranged on the limiting block (1) and the connecting cylinder (3). The indicating component (2) includes a scale indicating block (201). The scale indicating block (201) is fixedly connected to the top of the connecting cylinder (3) at equal angles. A fixing groove (203) is formed on one side inside the limiting block (1). Two sides of the inner wall of the fixing groove (203) are fixedly connected with a return spring (202). One end of the return spring (202) is fixedly connected with a sliding block (204). One end of the sliding block (204) is fixedly connected with a movable block (205) extending outside the limiting block (1).

2. A ball valve for segmented castings according to claim 1, characterized in that: One ends of the scale indicating block (201) and the movable block (205) are rounded. The movable block (205) forms a sliding structure with the inside of the fixing groove (203) through the sliding block (204).

3. A ball valve for segmented castings according to claim 1, characterized in that: The filter component (7) includes a reserved groove (705). The reserved groove (705) is formed on the top of the filter box (6). The upper end of one side of the filter box (6) is movably connected with a fixing bolt (704). The upper end of the other side of the top of the filter box (6) is movably connected with a sealing plate (701). Threaded holes (702) matching the fixing bolt (704) in thread are formed at both ends of one side of the sealing plate (701). A sieve plate (703) extending into the filter box (6) is fixedly connected to the bottom end of the sealing plate (701).

4. A ball valve for segmented castings according to claim 3, characterized in that: A sealing ring (706) is fixedly connected to the lower end of the surface of the sealing plate (701). The shape of the top view of the sealing ring (706) is a figure-eight shape.

5. The ball valve for segmented casting according to claim 3, characterized in that: A clamping structure is formed between the lower end of the sealing plate (701) and the inside of the reserved groove (705). The cross-sectional shape of the sealing plate (701) is an inverted convex shape.

6. The ball valve for segmented casting according to claim 3, characterized in that: The lower end of the sieve plate (703) is U-shaped. The top end of the sieve plate (703) and one side of the bottom end of the sealing plate (701) are integrally welded.

7. The ball valve for segmented casting according to claim 1, characterized in that: [[ID= 8. The ball valve for segmented casting according to claim 1, characterized in that: ​

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