Improved fixed ball valve

Abstract

This utility model relates to the field of fixed ball valve technology, and in particular to an improved fixed ball valve, comprising a fixed ball valve body, connecting flanges, and a pipeline. Two connecting flanges are fixedly installed at the other end of the pipeline. The top of the fixed ball valve body is provided with a ball valve opening and closing control structure, and the inner side of the fixed ball valve body is provided with a valve sealing structure. In this improved fixed ball valve, two transverse grooves matching the diameter of the front end of the electric actuator are carved on the side wall of the valve stem. When the handle is set laterally and the lower fixed ball valve body is closed, the two electric actuators are connected to the power supply and engage in the valve stem, preventing manual operation and extinguishing the indicator light. When the operator needs to open the valve, they press the button while simultaneously moving the handle. The button controls the two electric actuators to retract and no longer engage on the outside of the valve stem, allowing manual rotation of the valve stem. This design, relying on the button pad to provide a safety locking function for the handle, prevents accidental or automatic opening of the ball valve, reducing the occurrence of water leakage.

Description

Technical Field

[0001] This utility model relates to the field of fixed ball valve technology, specifically an improved fixed ball valve. Background Technology

[0002] A ball valve is a valve in which the valve stem drives the valve's opening and closing mechanism, causing the valve to rotate around its axis. It can also be used for fluid regulation and control. Hard-seal V-type ball valves, in particular, have a strong shearing force between the V-shaped ball core and the metal seat with hard alloy overlay, making them especially suitable for media containing fibers or small solid particles. Multi-port ball valves not only allow for flexible control of media merging, splitting, and switching of flow direction in pipelines, but also allow the closure of any channel while connecting two other channels.

[0003] For example, the authorization notice number "CN209725285U" describes a fixed ball valve that, by setting a flow restrictor, can intercept sewage impurities above the sewage channel, preventing impurities from accumulating above or adhering to the bolts. Existing fixed ball valves rely on the valve stem to directly control the valve body's rotation for opening and closing, so there is no additional locking structure between the valve stem and the valve body. In daily use, the handle controlling the valve stem rotation is exposed, and to make applying force easier, the handle is made longer. This means that the valve stem, lacking a locking mechanism, is very easily accidentally swung. Swinging the handle can cause the valve body to rotate, causing the ball valve to lose its locking function and resulting in pipe leakage. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing fixed ball valves are easily accidentally swung when the valve stem is not locked, and the valve body can be rotated by swinging the handle, causing the ball valve to lose its locking function and resulting in water leakage in the pipeline. Therefore, an improved fixed ball valve is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A modified fixed ball valve is designed, comprising a fixed ball valve body, connecting flanges, and pipelines. Two pipelines are fixedly connected to both sides of the fixed ball valve body, and two connecting flanges are fixedly installed at the other end of the pipelines. The top of the fixed ball valve body is provided with a ball valve opening and closing control structure, and the inner side of the fixed ball valve body is provided with a valve sealing structure. The two pipelines are provided with a detachable inner tube structure.

[0007] Preferably, the ball valve opening and closing control structure includes a connecting seat and a handle. The connecting seat is fixedly installed on the top of the fixed ball valve body. A valve stem is rotatably connected to the inner side of the connecting seat. A valve core is fixedly connected to the lower end of the valve stem. A support block is fixedly connected to the top of the valve stem. The handle is fixedly connected to one side of the outer wall of the support block.

[0008] This setting involves welding the connecting seat to the top of the fixed ball valve body for fixation. The inner side of the connecting seat is sealed with a PTFE single-material sealing ring, allowing the valve stem to rotate within a 90° range under the control of the top support block. This allows the lower end of the valve stem to allow the spherical valve core to be fixed inside the ball valve body 1 for rotation. The handle is convenient for holding and rotating.

[0009] Preferably, the upper part of the connecting seat is provided with a valve stem not-opening locking structure. The valve stem not-opening locking structure includes a fixing frame and a button. The fixing frame is fixedly connected to the top of the connecting seat. Electric push rods are fixedly installed on both sides of the inner wall of the fixing frame. A storage battery is fixedly connected to the upper side of the connecting seat. The button is fixedly connected to the upper part of the handle. An indicator light is fixedly connected to the side wall of the handle.

[0010] This design features two transverse grooves on the side wall of the valve stem that match the diameter of the front end of the electric actuator. When the handle is positioned laterally and the ball valve body is fixed below and closed, the electric actuators on both sides will be connected to the power supply and engage in the valve stem. This prevents the valve stem from being manually turned on, and the indicator light will turn off. When the operator needs to open the valve, they should first press the button and simultaneously turn the handle. The button will control the two electric actuators to retract and no longer be stuck on the outside of the valve stem, allowing the valve stem to be turned manually. This design, relying on the button pad to provide a safety locking function for the handle, prevents the ball valve from being accidentally activated or opened automatically, reducing the occurrence of water leakage.

[0011] Preferably, the front ends of the two electric push rods are movably connected to the side wall of the valve stem, and the button is electrically connected to the electric push rods via a circuit.

[0012] Preferably, the valve sealing structure includes a reinforcing groove and a through hole. The reinforcing groove is fixedly connected to the inner side of the fixed ball valve body. A sealing gasket is slidably connected to the inner wall of the reinforcing groove. The sealing gasket is fixedly sleeved on the outer wall of the valve core. The through hole is fixedly opened inside the valve core.

[0013] This reinforcement groove is designed to fit the size and shape of the valve core, allowing the valve core to rotate under the control of the valve stem. The rubber sealing gasket inside the reinforcement groove reduces the flow of media along the gaps around the valve core, improving sealing performance. Furthermore, the stainless steel reinforcement groove internally reinforces and fixes the valve core during startup. When the valve core is horizontal, the two ends of the through hole connect to the internal valve of the pipeline, which is open. When the valve core is vertical, the valve can be closed.

[0014] Preferably, the detachable inner tube structure includes flow chambers and threaded tubes. Two flow chambers are fixedly opened inside the pipe, and the inner walls of the two flow chambers are threadedly connected to the threaded tubes. A detachable inner tube is fixedly sleeved on the inner side of the two threaded tubes, and a crossbeam is fixedly installed on the inner wall of the two detachable inner tubes.

[0015] This design features a flow chamber located inside the pipe. Two stainless steel disassembly inner tubes can be screwed into the pipe through the outer threaded tube. If there is a blockage, damage, or foreign object inside the pipe, the two connecting flanges can be separated, and then the inner tube can be disassembled by hand by reaching into it, gripping the transverse beam, and pulling it outward. This allows for the replacement of the inner tube with a new one or the cleaning of the inner tube for continued use, reducing the problem of inconvenient cleaning due to blockage inside the pipe.

[0016] Preferably, one end of each of the two disassembly inner tubes is connected to the inside of the docking flange, and the other end of each of the two disassembly inner tubes is disposed opposite to the two sides of the outer wall of the valve core.

[0017] The improved fixed ball valve proposed in this utility model has the following advantages: two transverse grooves are chiseled on the side wall of the valve stem, which match the diameter of the front end of the electric push rod. When the handle is set laterally and the valve body of the fixed ball valve is closed, the electric push rods on both sides will be connected to the power supply and start to lock into the valve stem. In this way, the valve stem cannot be manually turned to open, and the indicator light will be turned off. When the operator needs to open the valve, he first presses the button and turns the handle at the same time. The button can control the two electric push rods to retract and no longer lock on the outside of the valve stem, so the valve stem can be manually rotated. In this way, the button pad provides a safety locking function for the handle, making it less likely for the ball valve to be accidentally touched or automatically opened, thus reducing the occurrence of water leakage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 for Figure 1 A frontal sectional view;

[0020] Figure 3 for Figure 1 Top view diagram;

[0021] Figure 4 for Figure 2 Enlarged diagram of part A in the middle;

[0022] Figure 5 for Figure 2 Enlarged diagram of part B in the middle;

[0023] Figure 6 for Figure 2 Enlarged diagram of part C in the middle.

[0024] In the diagram: 1. Fixed ball valve body; 2. Connecting flange; 3. Pipeline; 4. Ball valve opening / closing control structure; 41. Connecting seat; 42. Valve stem; 43. Valve core; 44. Support block; 45. Handle; 5. Valve stem locking structure when not in use; 51. Fixing frame; 52. Electric push rod; 53. Battery; 54. Indicator light; 55. Button; 6. Valve sealing structure; 61. Reinforcing groove; 62. Sealing gasket; 63. Through hole; 7. Removable inner tube structure; 71. Flow chamber; 72. Removable inner tube; 73. Threaded pipe; 74. Crossbeam. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings: Example

[0026] Please see Figure 1-6 In this embodiment, an improved fixed ball valve includes a fixed ball valve body 1, connecting flanges 2, and pipes 3. Two pipes 3 are fixedly connected to both sides of the fixed ball valve body 1. The inside of the pipes 3 is used for the flow ball valve to control the medium to be transported. The connecting flanges 2 on both sides can be connected to the external pipes using multiple bolts. The entire fixed ball valve structure is made of high-strength stainless steel. The two connecting flanges 2 are fixedly installed at the other end of the pipes 3. The top of the fixed ball valve body 1 is provided with a ball valve opening and closing control structure 4. The inside of the fixed ball valve body 1 is provided with a valve sealing structure 6. The inside of the two pipes 3 is provided with a detachable inner tube structure 7.

[0027] The ball valve opening and closing control structure 4 includes a connecting seat 41 and a handle 45. The connecting seat 41 is fixedly installed on the top of the fixed ball valve body 1. The connecting seat 41 is welded to the top of the fixed ball valve body 1. The valve stem 42 can be rotated within a 90° range by the top support block 44 through a PTFE single-material sealing ring on the inner side of the connecting seat 41. The lower end of the valve stem 42 allows the spherical valve core 43 to rotate inside the fixed ball valve body 1. The valve stem 42 is rotatably connected to the inner side of the connecting seat 41. The valve core 43 is fixedly connected to the lower end of the valve stem 42. The support block 44 is fixedly connected to the top of the valve stem 42. The handle 44 is convenient for holding and rotating. The handle 44 is fixedly connected to one side of the outer wall of the support block 44.

[0028] Above the connecting seat 41 is a valve stem locking structure 5. The valve stem locking structure 5 includes a fixing frame 51 and a button 55. The fixing frame 51 is vertically welded above the connecting seat 41, and the internal space of the fixing frame 51 fits around the outside of the valve stem 42. Two transverse grooves matching the front end diameter of the electric push rod 52 are chiseled on the side wall of the valve stem 42. When the handle 45 is set horizontally and the ball valve body 1 is closed below, the electric push rods 52 on both sides will be connected to the power supply and start locking into the valve stem 42. In this way, the valve stem 42 cannot be manually opened, and the indicator light 54 is turned off. When the operator needs to open the valve, first press button 55 and simultaneously pull handle 45. Button 55 can control the two electric push rods 52 to retract and no longer be stuck on the outside of valve stem 42, so that valve stem 42 can be manually rotated. At the same time, indicator light 54 will light up as a reminder. The fixing frame 51 is fixedly connected to the top of the connecting seat 41. Electric push rods 52 are fixedly installed on both sides of the inner wall of the fixing frame 51. A battery 53 is fixedly connected to the upper side of the connecting seat 41. Button 55 is fixedly connected to the top of handle 45. Indicator light 54 is fixedly connected to the side wall of handle 45.

[0029] The front ends of the two electric push rods 52 are movably connected to the side wall of the valve stem 42, and the button 55 is electrically connected to the electric push rods 52 through a circuit.

[0030] The valve sealing structure 6 includes a reinforcing groove 61 and a through hole 63. The reinforcing groove 61 is fixedly connected to the inner side of the fixed ball valve body 1. The reinforcing groove 61 matches the size and shape of the valve core 43. The valve core 43 can be rotated by the valve stem 42. The rubber sealing gasket 62 inside the reinforcing groove 61 reduces the flow of medium along the gaps around the valve core 43, improving the sealing performance. The stainless steel reinforcing groove 61 also serves to fix the valve core 43 in place. The sealing gasket 62 is slidably connected to the inner wall of the reinforcing groove 61. The sealing gasket 62 is fixedly sleeved on the outer wall of the valve core 43. The through hole 63 is fixedly opened inside the valve core 43. When the valve core 43 is horizontal, the two ends of the through hole 63 are connected to the valve inside the pipe 3, which is open. When the valve core 43 is vertical, the valve can be closed.

[0031] The detachable inner tube structure 7 includes flow chambers 71 and threaded tubes 73. Two flow chambers 71 are fixedly opened inside the pipe 3. The inner walls of the two flow chambers 71 are threadedly connected to the threaded tubes 73. The flow chambers 71 are carved into the inner side of the pipe 3. Two stainless steel detachable inner tubes 72 can be rotated and screwed into the inner side of the pipe 3 through the outer threaded tubes 73. When there is a blockage, damage or foreign object inside the pipe 3, the two connecting flanges 2 can be separated, and then the detachable inner tube 72 can be disassembled by hand by reaching into it, grasping the transverse beam 74 and then disassembling the detachable inner tube 72 outward. A new detachable inner tube 72 can be replaced or the detachable inner tube can be cleaned and reused, reducing the problem of inconvenient cleaning of the blockage inside the pipe 3. The detachable inner tubes 72 are fixedly sleeved on the inner side of the two threaded tubes 73. The transverse beam 74 is fixedly installed on the inner wall of the two detachable inner tubes 72. One end of the two detachable inner tubes 72 is connected to the inside of the connecting flange 2, and the other end of the two detachable inner tubes 72 is set opposite to the outer wall of the valve core 43.

[0032] Working principle:

[0033] The improved fixed ball valve, whose opening and closing element is driven by the valve stem and rotates around the ball valve axis, can also be used for fluid regulation and control.

[0034] The inside of pipe 3 is used for the flow ball valve to control the medium to be transported, while the flanges 2 on both sides can be connected to the external pipe using multiple bolts. The entire fixed ball valve structure is made of high-strength stainless steel.

[0035] The connecting seat 41 is welded to the top of the fixed ball valve body 1 and fixed. The valve stem 42 can be controlled by the top support block 44 to rotate within a range of 90° through the PTFE single material sealing ring on the inner side of the connecting seat 41. Thus, the lower end of the valve stem 42 can allow the spherical valve core 43 to rotate inside the fixed ball valve body 1. The handle 44 is convenient for holding and rotating.

[0036] The fixing frame 51 is vertically welded above the connecting seat 41, and the internal space of the fixing frame 51 is fitted around the outside of the valve stem 42. Two horizontal grooves matching the front end diameter of the electric push rod 52 are chiseled on the side wall of the valve stem 42. When the handle 45 is horizontally set and the ball valve body 1 is fixed below and closed, the electric push rods 52 on both sides will be connected to the power supply and start to lock into the valve stem 42. In this way, the valve stem 42 cannot be manually opened, and the indicator light 54 will be off. When the operator needs to open the valve, press the button 55 and pull the handle 45 at the same time. The button 55 can control the two electric push rods 52 to retract and no longer lock into the outside of the valve stem 42. In this way, the valve stem 42 can be manually rotated. At the same time, the indicator light 54 will light up as a reminder. In this way, the button pad provides a safety locking function for the handle, making it less likely for the ball valve to be accidentally touched or opened automatically, reducing the occurrence of water leakage.

[0037] The reinforcing groove 61 matches the size and shape of the valve core 43. The valve core 43 can be rotated by the valve stem 42. The rubber sealing gasket 62 inside the reinforcing groove 61 reduces the flow of medium along the gaps around the valve core 43, improving the sealing performance. The stainless steel reinforcing groove 61 also serves to fix the valve core 43 in place. When the valve core 43 is horizontal, the valve inside the pipe 3 is connected to both ends of the through hole 63 and opened. When the valve core 43 is vertical, the valve can be closed.

[0038] The flow chamber 71 is excavated inside the pipe 3. Two stainless steel disassembly inner tubes 72 can be screwed into the inside of the pipe 3 through the outer threaded tube 73. When there is a blockage, damage or foreign object inside the pipe 3, the two mating flanges 2 can be separated, and then the disassembly inner tube 72 can be disassembled by hand by reaching into the disassembly inner tube 72, grasping the transverse beam 74 and then disassembling the disassembly inner tube 72 outward. A new disassembly inner tube 72 can be replaced or the disassembly inner tube can be cleaned and reused, reducing the problem of inconvenient cleaning of blockage inside the pipe 3.

[0039] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An improved fixed ball valve, comprising a fixed ball valve body (1), a connecting flange (2), and pipes (3), wherein two pipes (3) are fixedly connected to both sides of the fixed ball valve body (1), and two connecting flanges (2) are fixedly installed at the other end of the pipes (3), characterized in that: The top of the fixed ball valve body (1) is provided with a ball valve opening and closing control structure (4), the inner side of the fixed ball valve body (1) is provided with a valve sealing structure (6), and the two pipes (3) are provided with a detachable inner tube structure (7).

2. The improved fixed ball valve according to claim 1, characterized in that: The ball valve opening and closing control structure (4) includes a connecting seat (41) and a handle (45). The connecting seat (41) is fixedly installed on the top of the fixed ball valve body (1). A valve stem (42) is rotatably connected to the inner side of the connecting seat (41). A valve core (43) is fixedly connected to the lower end of the valve stem (42). A support block (44) is fixedly connected to the top of the valve stem (42). The handle (45) is fixedly connected to one side of the outer wall of the support block (44).

3. The improved fixed ball valve according to claim 2, characterized in that: The connecting seat (41) is provided with a valve stem not-opening locking structure (5). The valve stem not-opening locking structure (5) includes a fixed frame (51) and a button (55). The fixed frame (51) is fixedly connected to the top of the connecting seat (41). Electric push rods (52) are fixedly installed on both sides of the inner wall of the fixed frame (51). A storage battery (53) is fixedly connected to the upper side of the connecting seat (41). The button (55) is fixedly connected to the upper part of the handle (45). An indicator light (54) is fixedly connected to the side wall of the handle (45).

4. The improved fixed ball valve according to claim 3, characterized in that: The front ends of the two electric push rods (52) are movably connected to the side wall of the valve stem (42), and the button (55) is electrically connected to the electric push rods (52) through a circuit.

5. The improved fixed ball valve according to claim 1, characterized in that: The valve sealing structure (6) includes a reinforcing groove (61) and a through hole (63). The reinforcing groove (61) is fixedly connected to the inner side of the fixed ball valve body (1). A sealing gasket (62) is slidably connected to the inner wall of the reinforcing groove (61). The sealing gasket (62) is fixedly sleeved on the outer wall of the valve core (43). The through hole (63) is fixedly opened inside the valve core (43).

6. The improved fixed ball valve according to claim 1, characterized in that: The detachable inner tube structure (7) includes a flow chamber (71) and a threaded tube (73). The two flow chambers (71) are fixedly opened inside the pipe (3). The inner walls of the two flow chambers (71) are threadedly connected to the threaded tube (73). The inner sides of the two threaded tubes (73) are fixedly sleeved with a detachable inner tube (72). The inner walls of the two detachable inner tubes (72) are fixedly installed with a crossbeam (74).

7. The improved fixed ball valve according to claim 6, characterized in that: One end of each of the two disassembly inner tubes (72) is connected to the inside of the docking flange (2), and the other end of each of the two disassembly inner tubes (72) is disposed opposite to the two sides of the outer wall of the valve core (43).

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