Ball valve with mistaken touch prevention structure

Abstract

The utility model discloses a ball valve with a mistaken touch prevention structure, which belongs to the technical field of ball valves and comprises a ball valve body, a rotatable valve handle is mounted on the ball valve body, a trigger locking mechanism and a mistaken touch prevention baffle are mounted on the lower end face of the valve handle, and the mistaken touch prevention baffle is rotatably connected with the ball valve body through a reset seat mounted on the valve handle. The ball valve body is fixedly provided with a mistaken touch prevention stop block capable of being attached to the tail end of the mistaken touch prevention baffle, an unlocking trigger is installed on the mistaken touch prevention baffle, and the unlocking trigger is pressed to make contact with the trigger locking mechanism. According to the technical scheme, when the valve handle is mistakenly touched and needs to rotate, due to the blocking effect of the mistakenly-touched stopping block, the mistakenly-touched stopping plate cannot rotate, the valve handle cannot rotate, then the mistakenly-touched effect is achieved, and when the valve handle needs to be rotated, only the unlocking trigger needs to be pressed to enable the mistakenly-touched stopping plate to tilt up.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a ball valve with an anti-accidental contact structure. Background Technology

[0002] A ball valve is a type of valve that controls the flow of fluid by rotating a ball. The opening and closing element of a ball valve is a ball with a circular orifice. The ball is driven by a valve stem and rotates around the valve's axis. The valve stem is usually connected to a handle for easy rotation by the user. During opening and closing, the ball rotates around its central axis. When the ball rotates to a specific position (usually 90 degrees), its orifice aligns with or offsets from the valve body's passage, thus controlling the flow of fluid.

[0003] For ease of operation, common ball valve handles usually have a large extension dimension. Due to the lack of an active limiting structure, when the user accidentally bumps the handle, the handle will rotate under the force, thereby opening the ball valve to a certain extent and causing the conveyed fluid to leak out. Moreover, such accidental collisions are not easily noticed by the user, which may lead to serious consequences due to misoperation. Therefore, to address the above problems, a ball valve with an anti-accidental contact structure is proposed. Utility Model Content

[0004] The technical problem this utility model aims to solve is to provide a ball valve with an anti-accidental contact structure. This ball valve has a rotatable and automatically reset anti-accidental contact baffle on the valve handle and a corresponding anti-accidental contact stop block on the valve body. When the valve handle is accidentally touched and attempts to rotate, the anti-accidental contact baffle cannot rotate due to the blocking effect of the anti-accidental contact stop block, thus preventing the valve handle from rotating and achieving the anti-accidental contact function. When the valve handle needs to be rotated, simply pressing the unlocking trigger will cause the anti-accidental contact baffle to tilt. When the anti-accidental contact function is not needed, the unlocking trigger can be locked by the trigger locking mechanism to prevent it from resetting, meaning the anti-accidental contact baffle is in the tilted state and cannot contact the anti-accidental contact stop block. In this case, the anti-accidental contact measure is ineffective, and the valve handle can rotate freely. This solves the technical problem in the prior art where ball valves lack anti-accidental contact measures, are prone to rotating on their own upon accidental contact, and such accidental collisions are not easily noticed by the user, leading to potentially serious consequences.

[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0006] A ball valve with an anti-accidental contact structure includes a ball valve body with a rotatable valve handle. A trigger locking mechanism is installed on the lower end face of the valve handle, and an anti-accidental contact baffle is rotatably connected to the valve handle via a reset seat mounted on the valve handle. An anti-accidental contact block is fixedly installed on the ball valve body, which can abut the end of the anti-accidental contact baffle. An unlocking trigger is installed on the anti-accidental contact baffle. When the unlocking trigger is pressed and contacts the trigger locking mechanism, the trigger locking mechanism locks the unlocking trigger, preventing it from resetting. When the valve handle is accidentally touched and rotation is attempted, the anti-accidental contact baffle cannot rotate due to the blocking effect of the anti-accidental contact block, thus preventing the valve handle from rotating and achieving the anti-accidental contact function. When the valve handle needs to be rotated, simply pressing the unlocking trigger raises the anti-accidental contact baffle.

[0007] In one possible implementation, the anti-accidental touch baffle is fixedly provided with rotating shafts on both sides of its top end, and the reset seat includes a hinge seat, wherein the rotating shaft is rotatably connected to the hinge seat, and a limiting piece is fixedly provided on the rotating shaft to fit against the outer end face of the hinge seat. The above structure can realize the rotatable connection between the anti-accidental touch baffle and the valve handle, while ensuring the stability of the connection structure.

[0008] In one possible implementation, the reset seat further includes a mating end piece disposed on one side of the hinge seat. The end of the rotating shaft is rotatably connected to the mating end piece, and a reset torsion spring is sleeved on the rotating shaft. The two ends of the reset torsion spring are fixedly connected to the limiting piece and the mating end piece, respectively. When the anti-accidental touch baffle is driven to rotate by the unlocking trigger, the reset torsion spring will deform and accumulate potential energy under the action of torque. When the external force is removed, the anti-accidental touch baffle will return to its original position under the action of the reset torsion spring, thus facilitating use. At the same time, it can prevent the anti-accidental touch baffle from separating from the anti-accidental touch block during use, which would cause the anti-accidental touch to fail.

[0009] In one possible implementation, a locking insert with a through hole is fixedly provided on the upper end face of the unlocking trigger. The trigger locking mechanism includes a locking seat with a slot matching the locking insert on its upper end face. A locking mating piece is provided on one side of the locking seat, on which a sliding bolt is installed. When the anti-accidental touch function needs to be activated, the unlocking trigger is pressed to insert the locking insert into the locking seat. Then, the sliding bolt is inserted into the locking seat. At this time, the locking insert cannot move outward, and the unlocking trigger cannot be reset. That is, the anti-accidental touch baffle remains in the tilted unlocked state.

[0010] In one possible implementation, the sliding bolt is provided with a magnetic absorbing piece. When the magnetic absorbing piece is attracted to the locking insert, the two ends of the sliding bolt are respectively located in the locking seat and the locking mating piece. When the magnetic absorbing piece is attracted to the locking mating piece, the end of the sliding bolt slides out of the locking insert. The above technical solution can fix the position of the sliding bolt in both states, preventing it from sliding freely during use and causing inconvenience.

[0011] In one possible implementation, a limiting pad is installed on the valve handle. When the anti-accidental contact baffle is in contact with the limiting pad, its end is in contact with the anti-accidental contact baffle. The limiting pad can be used to position the initial position of the anti-accidental contact baffle, thus facilitating its use.

[0012] In one possible implementation, the front end of the unlocking trigger is provided with a connecting end plate, which is bolted to the anti-accidental touch baffle. This structure enables a detachable connection between the anti-accidental touch baffle and the unlocking trigger.

[0013] In one possible implementation, a starting stop and an ending stop are fixedly provided on the ball valve body, and a limiting protrusion is fixedly provided at the front end of the valve handle. When the ball valve is fully open, the limiting protrusion contacts the ending stop, and when the ball valve is fully closed, the limiting protrusion contacts the starting stop. The above structure can limit the stroke of the valve handle and make its stroke correspond one-to-one with the opening degree of the ball valve body.

[0014] In summary, this utility model has the following beneficial technical effects:

[0015] The ball valve has a rotatable and automatically resettable anti-accidental contact baffle on the valve handle and a matching anti-accidental contact block on the valve body. When the valve handle is accidentally touched and needs to be turned, the anti-accidental contact baffle cannot be turned due to the blocking effect of the anti-accidental contact block, thus preventing the valve handle from turning and playing the role of preventing accidental contact. When it is necessary to turn the valve handle, simply press the unlocking trigger to make the anti-accidental contact baffle pop up.

[0016] When the anti-accidental touch function is not needed, the trigger locking mechanism can be used to lock the unlocking trigger so that it cannot be reset. That is, the anti-accidental touch baffle is in a tilted state and cannot contact the anti-accidental touch block. At this time, the anti-accidental touch measure is ineffective, and the valve handle can rotate freely. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the trigger locking mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the handle limiting structure of this utility model.

[0022] In the diagram: 1. Ball valve body; 11. Anti-accidental contact stop; 12. Starting stop; 13. Ending stop; 2. Valve handle; 21. Limiting protrusion; 3. Reset seat; 31. Hinge seat; 32. Limiting plate; 33. Mating end plate; 34. Reset torsion spring; 4. Anti-accidental contact baffle; 41. Rotating shaft; 5. Unlocking trigger; 51. Connecting end plate; 52. Locking insert; 6. Trigger locking mechanism; 61. Locking seat; 62. Locking mating plate; 63. Sliding bolt; 64. Magnetic plate; 7. Limiting pad. Detailed Implementation

[0023] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0024] like Figure 1 As shown, this embodiment provides a ball valve with an anti-accidental contact structure, including a ball valve body 1, on which a rotatable valve handle 2 is mounted. A trigger locking mechanism 6 is mounted on the lower end face of the valve handle 2, and an anti-accidental contact baffle 4 is rotatably connected to it through a reset seat 3 mounted on the valve handle 2. The ball valve body 1 is fixedly provided with an anti-accidental contact block 11 that can fit against the end of the anti-accidental contact baffle 4, and an unlocking trigger 5 is mounted on the anti-accidental contact baffle 4. When the unlocking trigger 5 is pressed to make it contact the trigger locking mechanism 6, the trigger locking mechanism 6 can lock the unlocking trigger 5 so that it cannot be reset. When the valve handle 2 is accidentally touched and needs to be rotated, the anti-accidental contact baffle 4 cannot be rotated due to the blocking effect of the anti-accidental contact block 11, which also prevents the valve handle 2 from rotating, thus playing the role of preventing accidental contact. When it is necessary to rotate the valve handle 2, it is only necessary to press the unlocking trigger 5 to make the anti-accidental contact baffle 4 tilt up.

[0025] like Figure 2 As shown, the anti-accidental contact baffle 4 has rotating shafts 41 fixedly installed on both sides of its top end. The reset seat 3 includes a hinge seat 31, wherein the rotating shafts 41 are rotatably connected to the hinge seat 31, and a limiting piece 32 that fits against the outer end face of the hinge seat 31 is fixedly installed on the rotating shafts 41. The above structure can realize the rotatable connection between the anti-accidental contact baffle 4 and the valve handle 2, while ensuring the stability of the connection structure. In addition, the reset seat 3 also includes a mating end piece 33 disposed on one side of the hinge seat 31, and the end of the rotating shaft 41 is connected to the mating end piece 33. 3. A rotary connection is provided, and a reset torsion spring 34 is provided on the outer sleeve of the rotating shaft 41. The two ends of the reset torsion spring 34 are fixedly connected to the limiting plate 32 and the mating end plate 33, respectively. When the anti-accidental touch baffle 4 is driven to rotate by the unlocking trigger 5, the reset torsion spring 34 will be deformed by torque and accumulate potential energy. When the external force is removed, the anti-accidental touch baffle 4 will return to its original position under the action of the reset torsion spring 34, which makes it easy to use. At the same time, it can prevent the anti-accidental touch baffle 4 from separating from the anti-accidental touch block 11 during use, which would cause the anti-accidental touch to fail.

[0026] In addition, the front end of the unlocking trigger 5 is provided with a connecting end plate 51, which is bolted to the anti-accidental touch baffle 4. This structure can realize the detachable connection between the anti-accidental touch baffle 4 and the unlocking trigger 5.

[0027] like Figure 2 - Figure 3 As shown, a locking insert 52 is fixedly installed on the upper end face of the unlocking trigger 5, and a through hole is formed thereon. The trigger locking mechanism 6 includes a locking seat 61, and a slot matching the locking insert 52 is formed on the upper end face of the locking seat 61. A locking mating piece 62 is provided on one side of the locking seat 61, and a sliding bolt 63 is installed on it. When the anti-accidental activation function needs to be activated, the unlocking trigger 5 is pressed so that the locking insert 52 is inserted into the locking seat 61. Then the sliding bolt 63 is inserted into the locking seat 61. At this time, the locking insert 52 cannot move outward, and the trigger is unlocked. The locking trigger 5 cannot be reset, meaning the anti-accidental contact baffle 4 remains in the tilted unlocked state. In addition, the sliding bolt 63 is equipped with a magnetic piece 64. When the magnetic piece 64 is attracted to the locking insert 52, both ends of the sliding bolt 63 are located in the locking seat 61 and the locking mating piece 62, respectively. When the magnetic piece 64 is attracted to the locking mating piece 62, the end of the sliding bolt 63 slides out of the locking insert 52. The above technical solution can fix the position of the sliding bolt 63 in both states, preventing it from sliding freely during use and causing inconvenience.

[0028] like Figure 2 As shown, a limiting pad 7 is installed on the valve handle 2. When the anti-accidental contact baffle 4 is in contact with the limiting pad 7, its end is in contact with the anti-accidental contact baffle 11. The limiting pad 7 can be used to position the initial position of the anti-accidental contact baffle 4, thus facilitating its use.

[0029] like Figure 4 As shown, a starting stop 12 and an ending stop 13 are fixedly provided on the ball valve body 1, and a limiting protrusion 21 is fixedly provided at the front end of the valve handle 2. When the ball valve is fully open, the limiting protrusion 21 contacts the ending stop 13. When the ball valve is fully closed, the limiting protrusion 21 contacts the starting stop 12. The above structure can limit the stroke of the valve handle 2 and make its stroke correspond one-to-one with the opening degree of the ball valve body 1.

[0030] The working principle and usage process of this utility model:

[0031] The ball valve has a rotatable and automatically resettable anti-accidental contact baffle 4 on the valve handle 2, and an anti-accidental contact block 11 that cooperates with it on the ball valve body 1. When the valve handle 2 is accidentally touched and needs to be rotated, the anti-accidental contact baffle 4 cannot be rotated due to the blocking effect of the anti-accidental contact block 11, which also prevents the valve handle 2 from rotating, thus playing the role of preventing accidental contact. When it is necessary to rotate the valve handle 2, it is only necessary to press the unlocking trigger 5 to make the anti-accidental contact baffle 4 lift up. At this time, the anti-accidental contact baffle 4 is separated from the anti-accidental contact block 11, and the valve handle 2 can rotate freely.

[0032] When the anti-accidental touch function is not needed, the trigger locking mechanism 6 can lock the unlocking trigger 5 so that it cannot be reset. That is, the anti-accidental touch baffle 4 is in a tilted state and cannot contact the anti-accidental touch block 11. At this time, the anti-accidental touch measure is ineffective, and the valve handle 2 can rotate freely. Specifically, when the unlocking trigger 5 is pressed, the locking insert 52 on it is inserted into the locking seat 61, and then the sliding bolt 63 is inserted into the locking seat 61. At this time, the locking insert 52 cannot move outward, and the unlocking trigger 5 cannot be reset. That is, the anti-accidental touch baffle 4 is always in the tilted unlocked state.

[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A ball valve with an anti-accidental contact structure, characterized in that, include: A ball valve body (1) is mounted on which a rotatable valve handle (2) is installed, and a trigger locking mechanism (6) is mounted on the lower end face of the valve handle (2); An anti-accidental contact baffle (4) is rotatably connected to the valve handle (2) via a reset seat (3) mounted on the valve handle (2); Among them, the ball valve body (1) is fixedly provided with an anti-accidental contact block (11) that can fit with the end of the anti-accidental contact baffle (4), and an unlocking trigger (5) is installed on the anti-accidental contact baffle (4). When the unlocking trigger (5) is pressed to make it contact the trigger locking mechanism (6), the trigger locking mechanism (6) can lock the unlocking trigger (5) so that it cannot be reset.

2. A ball valve with an anti-accidental contact structure according to claim 1, characterized in that: The anti-accidental touch baffle (4) has a rotating shaft (41) fixedly installed on both sides of the top end. The reset seat (3) includes a hinge seat (31), wherein the rotating shaft (41) is rotatably connected to the hinge seat (31), and a limiting piece (32) that fits against the outer end face of the hinge seat (31) is fixedly installed on the rotating shaft (41).

3. A ball valve with an anti-accidental contact structure according to claim 2, characterized in that: The reset seat (3) also includes a mating end piece (33) disposed on one side of the hinge seat (31), the end of the rotating shaft (41) is rotatably connected to the mating end piece (33), and the rotating shaft (41) is sleeved with a reset torsion spring (34), the two ends of the reset torsion spring (34) being fixedly connected to the limiting piece (32) and the mating end piece (33) respectively.

4. A ball valve with an anti-accidental contact structure according to claim 1, characterized in that: The upper end face of the unlocking trigger (5) is fixedly provided with a locking insert (52) with a through hole. The trigger locking mechanism (6) includes a locking seat (61) with a slot matching the locking insert (52) on its upper end face. A locking mating piece (62) is provided on one side of the locking seat (61) with a sliding bolt (63) installed thereon.

5. A ball valve with an anti-accidental contact structure according to claim 4, characterized in that: The sliding bolt (63) is provided with a magnetic absorbing piece (64). When the magnetic absorbing piece (64) is attracted to the locking insert (52), the two ends of the sliding bolt (63) are located in the locking seat (61) and the locking mating piece (62) respectively. When the magnetic absorbing piece (64) is attracted to the locking mating piece (62), the end of the sliding bolt (63) slides out of the locking insert (52).

6. A ball valve with an anti-accidental contact structure according to claim 1, characterized in that: The valve handle (2) is equipped with a limiting pad (7). When the anti-accidental contact baffle (4) is in contact with the limiting pad (7), its end is in contact with the anti-accidental contact baffle (11).

7. A ball valve with an anti-accidental contact structure according to claim 1, characterized in that: The front end of the unlocking trigger (5) is provided with a connecting end plate (51), which is bolted to the anti-accidental contact baffle (4).

8. A ball valve with an anti-accidental contact structure according to claim 1, characterized in that: The ball valve body (1) is fixedly provided with a starting stop (12) and an ending stop (13), and the front end of the valve handle (2) is fixedly provided with a limiting protrusion (21). When the ball valve is fully opened, the limiting protrusion (21) contacts the ending stop (13), and when the ball valve is fully closed, the limiting protrusion (21) contacts the starting stop (12).

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