Butterfly ball valve capable of locking angle

By designing a butterfly ball valve that can be locked to an angle, the meshing and docking mechanism of the screw and the tooth plate can limit the rotation of the valve stem, which solves the problem of flow loss caused by mismoving the handle, and achieves accurate adjustment of the fluid flow and stability of the process.

CN222502890UActive Publication Date: 2025-02-18SICHUAN KAITZ VALVE MFG
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Patent Information

Application Number
CN202421383371.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-17
Publication Date
2025-02-18
Estimated Expiration
2034-06-17

AI Technical Summary

Technical Problem

When the staff accidentally touches the handle of the butterfly ball valve, it is easy for the handle to drive the valve stem to accidentally move the opening angle of the valve disc, causing the fluid flow to change and causing the flow to get out of control.

Method used

A butterfly ball valve that can be locked at an angle is designed. The butt tooth plate is driven down by rotating screws, so that the butt tooth plate and the connecting tooth plate are meshed and connected, limiting the rotation of the valve stem, and limiting the angle of the valve flap rotation and opening the valve flap to be limited. , and precise angle control is achieved through angle rulers and pointers.

Benefits of technology

The angle locking of the butterfly ball valve is achieved, avoiding the flow loss caused by mismoving the handle, ensuring the precise adjustment of the fluid flow and the stability of the process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of butterfly ball valves, and particularly relates to a butterfly ball valve capable of locking angles, which comprises a valve body and a valve rod, the valve rod is mounted in the valve body, a valve clack is fixed at the lower end of the valve rod, the upper end of the valve rod is connected with a handle, and a fixing plate is fixed on the outer side of the valve rod. According to the butterfly ball valve capable of locking the angle, the screw rod is rotated, the screw rod drives the butt joint toothed plate to move downwards, the butt joint toothed plate and the connecting toothed plate are in meshed butt joint, the butt joint toothed plate and the connecting toothed plate are limited together, the butt joint toothed plate can limit the valve rod to rotate through the sliding plate and the fixing plate, and the rotating opening angle of the valve clack is limited; the butterfly ball valve can be subjected to angle locking, the bolt is rotated, the first connecting plate is limited to the upper side of the connecting cover, the handle is in butt joint with the inner side of the first connecting plate, the first connecting plate can limit rotation of the handle, and the butterfly ball valve can conveniently and accurately control the opening angle of the valve clack.
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Description

Technical Field

[0001] The utility model relates to the technical field of butterfly ball valves, in particular to a butterfly ball valve which can be locked at an angle. Background Art

[0002] A butterfly ball valve is a valve used to control the flow of fluid media. The butterfly ball valve adjusts the flow rate and flow velocity of the fluid by rotating the valve disc. By adjusting the opening angle of the valve, the flow rate of the fluid can be accurately controlled to meet the flow demand in the process technology. The butterfly ball valve can fully open or close the valve to allow or prevent the passage of the fluid. When the valve disc rotates to a position parallel to the flow direction of the fluid, the valve is fully open. When the valve disc rotates to a position perpendicular to the flow direction of the fluid, the valve is fully closed.

[0003] The butterfly ball valve can control the flow of fluid in the pipeline, accurately adjust the flow rate of the fluid, realize opening and closing, adjust the fluid diversion, and introduce shear force when necessary. In some industrial processes, it is necessary to rotate the handle of the butterfly ball valve to open the valve disc at a specific angle to ensure correct process control. The handle of the butterfly ball valve is exposed to the air. When the staff accidentally touches the handle, it is easy for the handle to drive the valve stem to mistakenly move the opening angle of the valve disc, causing the butterfly ball valve to change the flow rate of the fluid and cause the process to be out of control. Therefore, we proposed a butterfly ball valve that can be locked at an angle. Utility Model Content

[0004] The utility model aims to provide a butterfly ball valve which can be locked at an angle, so as to solve the problem in the above-mentioned background technology that when the staff accidentally touches the handle, the handle may cause the valve stem to mistakenly move the opening angle of the valve disc, causing the butterfly ball valve to change the flow rate of the fluid and cause the process to be out of control.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly ball valve that can be locked at an angle, comprising a valve body and a valve stem, a valve stem is installed inside the valve body, and a valve disc is fixed at the lower end of the valve stem, a handle is connected to the upper end of the valve stem, a fixing plate is fixed to the outer side of the valve stem, a first sliding groove is provided on the side of the valve body close to the fixing plate, and a through groove is provided on one side of the first sliding groove, the through groove is slidably docked with a slide plate, the slide plate is connected to the fixing plate, a screw rod and a sliding rod are simultaneously penetrated inside the slide plate, and a second sliding groove is provided on the side of the slide plate close to the sliding rod, the lower end of the screw rod is movably connected to a docking tooth plate through a bearing, the lower end of the sliding rod is fixed to the docking tooth plate, the docking tooth plate is docked with the connecting tooth plate, and the connecting tooth plate is fixed to the valve body.

[0006] Preferably, a connecting cover is fixed to a side of the valve body close to the handle, and an angle ruler is embedded on the inner side of the connecting cover.

[0007] Preferably, a pointer is provided above the angle ruler, and one end of the pointer is fixed to the slider.

[0008] Preferably, an arc groove is formed on one side of the connection cover close to the slider, and a first connection plate and a second connection plate are fixed on both sides of the slider respectively, and the first connection plate and the second connection plate are slidably docked with the openings on both sides of the arc groove respectively.

[0009] Preferably, the first connecting plate is connected to the handle, and bolts penetrate the interior of the second connecting plate.

[0010] Preferably, one end of the bolt is movably connected to the push plate via a bearing, and a connecting pad is bonded to a side of the push plate close to the valve body.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the butterfly ball valve that can lock the angle, rotate the screw to make the screw drive the docking tooth plate to move downward, so that the docking tooth plate and the connecting tooth plate are meshed and docked, so that the docking tooth plate and the connecting tooth plate are restricted together, so that the docking tooth plate can limit the rotation of the valve stem through the slide plate and the fixed plate, so that the angle of the valve disc rotation opening is limited, so that the butterfly ball valve can be angle-locked, rotate the bolt to limit the first connecting plate to the upper side of the connecting cover, so that the handle is docked with the inner side of the first connecting plate, so that the first connecting plate can limit the rotation of the handle, so that the butterfly ball valve is easy to accurately control the opening angle of the valve disc.

[0012] 1. The butterfly ball valve with angle lock can control the flow of fluid in the pipeline, accurately adjust the flow of fluid, realize opening and closing, adjust fluid diversion, and introduce shear force when necessary. When the valve disc rotates, the screw is rotated to drive the butt-jointed tooth plate to move downward, so that the butt-jointed tooth plate and the connecting tooth plate are meshed and butted, so that the butt-jointed tooth plate and the connecting tooth plate are restricted together, so that the butt-jointed tooth plate can limit the rotation of the valve stem through the slide plate and the fixed plate, so that the angle of the valve disc rotation opening is limited, so that the butterfly ball valve can be angle locked;

[0013] 2. For the angle-lockable butterfly ball valve, when the butterfly ball valve needs to be opened to a certain angle, the second connecting plate is rotated so that the staff can view the number on the angle scale indicated by the pointer through the connecting cover, and then the bolt is rotated to squeeze and limit the push plate and the valve body, so that the first connecting plate is restricted to the upper side of the connecting cover. At this time, the staff can rotate the handle to dock the handle with the inner side of the first connecting plate, so that the first connecting plate can limit the rotation of the handle, making it easy for the butterfly ball valve to accurately control the opening angle of the valve disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 2This is a schematic diagram of the front cross-sectional structure of the fixed plate and the sliding plate of the utility model;

[0016] Figure 3 It is a schematic diagram of the top cross-sectional structure of the fixed plate and the sliding plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the front cross-sectional structure of the slider and the first connecting plate of the utility model;

[0018] Figure 5 It is a schematic diagram of the right side cross-sectional structure of the handle and the first connecting plate of the utility model;

[0019] Figure 6 It is a schematic diagram of the top cross-sectional structure of the slider and the arc-shaped groove of the utility model;

[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the butt-jointed tooth plates and the connecting tooth plates of the utility model.

[0021] In the figure: 1. valve body; 101. valve stem; 102. valve disc; 103. handle; 2. fixing plate; 201. first slide groove; 202. through groove; 203. slide plate; 204. screw rod; 205. slide rod; 206. second slide groove; 207. docking tooth plate; 208. connecting tooth plate; 3. connecting cover; 301. angle ruler; 302. pointer; 303. slider; 3031. arc groove; 304. first connecting plate; 305. second connecting plate; 306. bolt; 307. push plate; 308. connecting pad. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 3 and Figure 7The utility model provides a technical solution: a butterfly ball valve that can be locked at an angle, including a valve body 1 and a valve stem 101, the valve stem 101 is installed inside the valve body 1, and a valve disc 102 is fixed at the lower end of the valve stem 101, a handle 103 is connected to the upper end of the valve stem 101, and a fixing plate 2 is fixed to the outer side of the valve stem 101, a first slide groove 201 is opened on the side of the valve body 1 close to the fixing plate 2, and a through groove 202 is opened on one side of the first slide groove 201, the through groove 202 is slidably connected with a slide plate 203, the slide plate 203 is connected to the fixing plate 2, and a screw 204 and a through groove 202 are penetrated inside the slide plate 203 at the same time. The slide bar 205 is provided with a second slide groove 206 on one side of the slide bar 203 close to the slide bar 205. The lower end of the screw rod 204 is movably connected to the docking tooth plate 207 through a bearing. The lower end of the slide bar 205 is fixed to the docking tooth plate 207. The docking tooth plate 207 is connected to the connecting tooth plate 208, and the connecting tooth plate 208 is fixed to the valve body 1. The inner wall spacing of the through groove 202 matches the thickness of the slide bar 203. The slide bar 203 is threadedly connected to the screw rod 204. The diameter of the slide bar 205 matches the inner wall spacing of the second slide groove 206. The docking tooth plate 207 is meshingly connected to the connecting tooth plate 208.

[0024] In specific implementation, according to Figure 1-Figure 3 and Figure 7 The butterfly ball valve can control the flow of fluid in the pipeline, can accurately adjust the flow rate of the fluid, realize opening and closing, adjust the fluid diversion, and introduce shear force when necessary. When the valve disc 102 needs to be opened at a specific angle, the screw rod 204 is rotated, and the diameter of the slide rod 205 is matched with the inner wall spacing of the second slide groove 206, so that the slide rod 205 can prevent the docking tooth plate 207 from rotating with the screw rod 204, and the slide plate 203 is threadedly connected to the screw rod 204, so that the screw rod 204 drives the docking tooth plate 207 to move up and down, so that the screw 204 drives the docking tooth plate 207 to move up, so that the docking tooth plate 207 and the connecting tooth plate 208 are disengaged. Then, at this time, the staff can hold the handle 103 to rotate the valve stem 101, so that the valve stem 101 can drive the connecting tooth plate 208 to rotate, so that the valve stem 101 can adjust the rotation opening angle of the valve disc 102. When the valve disc 102 finishes rotating, the screw 204 is rotated again to make the screw 204 drive the docking tooth plate 207 to move downward, so that the docking tooth plate 207 is re-engaged with the connecting tooth plate 208, so that the docking tooth plate 207 and the connecting tooth plate 208 are restricted together, so that the docking tooth plate 207 can limit the rotation of the valve stem 101 through the slide plate 203 and the fixed plate 2, so that the rotation opening angle of the valve disc 102 is limited, and the butterfly ball valve can be angle locked.

[0025] See also Figure 1 and Figure 4-Figure 6, a connecting cover 3 is fixed on the side of the valve body 1 close to the handle 103, and an angle ruler 301 is inlaid on the inner side of the connecting cover 3, a pointer 302 is arranged above the angle ruler 301, and one end of the pointer 302 is fixed to the slider 303, an arc groove 3031 is opened on the side of the connecting cover 3 close to the slider 303, and a first connecting plate 304 and a second connecting plate 305 are fixed on both sides of the slider 303, respectively, the first connecting plate 304 and the second connecting plate 305 are slidably connected to the openings on both sides of the arc groove 3031, the first connecting plate 304 is connected to the handle 103, a bolt 306 is passed through the inside of the second connecting plate 305, one end of the bolt 306 is movably connected to the push plate 307 through a bearing, and a connecting pad 308 is bonded to the side of the push plate 307 close to the valve body 1, the connecting cover 3 is made of transparent plastic material, the slider 303 matches the arc groove 3031, the second connecting plate 305 is threadedly connected to the bolt 306, and the connecting pad 308 is made of rubber material.

[0026] In specific implementation, according to Figure 1 and Figure 4-Figure 6 When the butterfly ball valve needs to be opened to a certain angle, the second connecting plate 305 is rotated to make the second connecting plate 305 drive the slider 303 to slide along the arc groove 3031. The slider 303 is matched with the arc groove 3031, so that the slider 303 is not easy to shake when sliding along the arc groove 3031. At the same time, the slider 303 drives the pointer 302 to rotate and move above the angle ruler 301, and the first connecting plate 304 also rotates and moves with the slider 303. The connecting cover 3 is made of transparent plastic material, so that the staff can view the number of the angle ruler 301 indicated by the pointer 302 through the connecting cover 3, which makes it convenient for the staff to The first connecting plate 304 is controlled to rotate and move to the required angle, and then the bolt 306 is rotated to make the bolt 306 drive the push plate 307 to squeeze and limit the valve body 1. The connecting pad 308 is made of rubber material with a certain deformation ability, so that the connecting pad 308 strengthens the squeezing and limiting of the push plate 307 and the valve body 1, and the first connecting plate 304 is limited to the upper side of the connecting cover 3. At this time, the staff can rotate the handle 103 to make the handle 103 dock with the inner side of the first connecting plate 304, so that the first connecting plate 304 can limit the rotation of the handle 103, so that the butterfly ball valve is easy to accurately control the opening angle of the valve disc 102.

[0027] In summary, the butterfly ball valve can control the flow of fluid in the pipeline, can accurately adjust the flow rate of the fluid, realize opening and closing, adjust the fluid diversion, and introduce shear force when necessary. When the valve disc 102 finishes rotating, the screw 204 is rotated to make the docking tooth plate 207 engage with the connecting tooth plate 208, so that the docking tooth plate 207 can limit the rotation of the valve stem 101 through the slide plate 203 and the fixed plate 2, so that the rotation opening angle of the valve disc 102 is limited, so that the butterfly ball valve can be angle locked, and the second connecting plate 305 is rotated to make the slider 303 drive the pointer 302 to rotate and move above the angle ruler 301, so that the staff can view the number of the angle ruler 301 indicated by the pointer 302 through the connecting cover 3, and the handle 103 is rotated to make the first connecting plate 304 limit the rotation of the handle 103, so that the butterfly ball valve is easy to accurately control the opening angle of the valve disc 102. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A butterfly ball valve capable of being locked at an angle, comprising a valve body (1) and a valve stem (101), characterized in that: A valve stem (101) is installed inside the valve body (1), and a valve flap (102) is fixed at the lower end of the valve stem (101), a handle (103) is connected to the upper end of the valve stem (101), a fixing plate (2) is fixed to the outer side of the valve stem (101), a first slide groove (201) is provided on the side of the valve body (1) close to the fixing plate (2), and a through groove (202) is provided on one side of the first slide groove (201), the through groove (202) is slidably connected to the slide plate (203), and the slide plate (203) is connected to the fixing plate (2) The slide plate (203) is connected to a fixed plate (2), a screw rod (204) and a slide rod (205) are simultaneously passed through the interior of the slide plate (203), and a second slide groove (206) is provided on a side of the slide plate (203) close to the slide rod (205), the lower end of the screw rod (204) is movably connected to a docking tooth plate (207) through a bearing, the lower end of the slide rod (205) is fixed to the docking tooth plate (207), the docking tooth plate (207) is connected to a connecting tooth plate (208), and the connecting tooth plate (208) is fixed to the valve body (1).

2. The angle-lockable butterfly ball valve according to claim 1, characterized in that: A connection cover (3) is fixed to a side of the valve body (1) close to the handle (103), and an angle ruler (301) is embedded on the inner side of the connection cover (3).

3. The angle-lockable butterfly ball valve according to claim 2, characterized in that: A pointer (302) is arranged above the angle ruler (301), and one end of the pointer (302) is fixed to a slider (303).

4. The angle-lockable butterfly ball valve according to claim 3, characterized in that: The connecting cover (3) is provided with an arc-shaped groove (3031) on one side close to the slider (303), and a first connecting plate (304) and a second connecting plate (305) are respectively fixed on both sides of the slider (303), and the first connecting plate (304) and the second connecting plate (305) are respectively slidably connected to the openings on both sides of the arc-shaped groove (3031).

5. The angle-lockable butterfly ball valve according to claim 4, characterized in that: The first connecting plate (304) is connected to the handle (103), and a bolt (306) penetrates the interior of the second connecting plate (305).

6. The angle-lockable butterfly ball valve according to claim 5, characterized in that: One end of the bolt (306) is movably connected to the push plate (307) via a bearing, and a connection pad (308) is bonded to a side of the push plate (307) close to the valve body (1).