Ball valve capable of preventing mistaken opening

Abstract

The utility model discloses a ball valve capable of preventing mistaken opening, and relates to the technical field of ball valves, the ball valve comprises a valve body, a cover plate is arranged on the upper end face of the valve body, a handle is arranged above the cover plate, a mistaken touch prevention device is arranged on one side of the upper end face of the cover plate, a rotating shaft is arranged on one side of the mistaken touch prevention device, and the rotating shaft is arranged on the other side of the cover plate. One side of the rotating shaft is connected with a double-end lead screw located in the mistaken touch prevention device, the two sides of the outer portion of the double-end lead screw are engaged with threaded blocks in a sleeving mode, a limiting sliding groove is formed in the upper end face of the mistaken touch prevention device, and telescopic sleeves are fixedly arranged on the upper end faces of the two threaded blocks; a storage groove is formed in the telescopic sleeve, sliding grooves located in the telescopic sleeve are formed in the two sides of the storage groove, and a telescopic sleeve rod is arranged in the storage groove. The handle is fixed through the mistaken touch prevention device, and the ball valve is prevented from being opened mistakenly.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, and particularly relates to a ball valve for preventing accidental opening. Background Art

[0002] A ball valve is a common type of valve. Its closing member is a sphere, and the sphere rotates 90° around the center line of the valve body to achieve opening and closing. The main functions of the ball valve in the pipeline are to cut off, regulate the flow rate of the medium, or change the flow direction of the medium.

[0003] For example, the patent number CN202222319220.3 discloses a ball valve for preventing accidental opening. Its structure includes a hinge, a first housing, a first shell plate, a fixed block, a slide rail, a second housing, and a second shell plate. The hinge is installed on the fixed ring, the first housing and the second housing are both hinged to the hinge, the first shell plate is fixedly connected to the first housing, the second shell plate is fixedly connected to the second housing, one side of the first shell plate is welded to the fixed block, and the slide rail is fixedly connected to the first shell plate and the fixed block. The utility model prevents accidental opening of the ball valve by combining and installing the first housing and the second housing on the ball valve to clamp the handle of the ball valve. When in use, after the U-shaped slide plate slides onto the second shell plate, the first shell plate and the second shell plate can be quickly clamped and fixed. When moving the U-shaped slide plate, the pull plate is pulled, and the U-shaped slide plate slides to the pin hole. The slide plate is pushed inward under the action of the spring, so that the pin rod is inserted into the pin hole, thereby fixing the U-shaped slide plate, automatically fixing the first shell plate and the second shell plate, and fixing the first housing and the second housing, which is convenient to use. The utility model achieves the purpose of preventing accidental opening by covering the handle with the first housing and the second housing. After the first housing and the second housing are combined, the ball valve is sealed, isolating the ball valve from the external environment, thereby reducing the influence of the external harsh environment on the ball valve, reducing the aging rate of the ball valve, and improving the service life of the ball valve;

[0004] The structure for preventing accidental opening in this patent sheathes the outer part of the ball valve with a housing, and uses the internal structure to play a role in preventing accidental touch. Its structure device for preventing accidental opening is relatively complex, the operation is rather cumbersome, and it is time-consuming in subsequent work. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a ball valve for preventing accidental opening, and solves the problems that its structure device for preventing accidental opening is relatively complex, the operation is rather cumbersome, and it is time-consuming in subsequent work.

[0006] To achieve the above objectives, the present utility model is realized through the following technical solutions: A ball valve that prevents accidental opening, comprising a valve body, a cover plate is provided on the upper end surface of the valve body, a handle is provided above the cover plate, an anti-mis-touch device is provided on one side of the upper end surface of the cover plate, a rotating shaft is provided on one side of the anti-mis-touch device, a double-headed lead screw located inside the anti-mis-touch device is connected to one side of the rotating shaft, both sides of the outside of the double-headed lead screw are meshed and sleeved with threaded blocks, a limit sliding groove is provided inside the upper end surface of the anti-mis-touch device, telescopic sleeves are fixedly provided on the upper end surfaces of the two threaded blocks, a storage groove is provided inside the telescopic sleeve, sliding grooves located inside the telescopic sleeve are provided on both sides of the storage groove, a telescopic rod is provided inside the storage groove, a sliding plate located inside the two sliding grooves is fixedly provided on the lower end surface of the telescopic rod, spring grooves are fixedly provided on both sides inside the telescopic rod, springs are provided inside the two spring grooves, insertion blocks are provided on one side of the two springs, a plurality of uniformly arranged through holes are provided on both sides of the telescopic sleeve, the insertion blocks are connected to the telescopic sleeve through the through holes, movable pressing blocks are provided above the two telescopic rods, clamping blocks are fixedly provided on the lower end surfaces of the two movable pressing blocks, and clamping grooves are provided inside both sides of the upper end surface of the handle, and the two clamping blocks are both clamped into the two clamping grooves.

[0007] Preferably, pipelines are fixedly provided on both sides of the valve body, and flange connection discs are fixedly provided on one side of the two pipelines.

[0008] Preferably, a limit rod is provided above the cover plate, and the handle is movably sleeved outside the limit rod.

[0009] Preferably, an auxiliary handle is provided on one side of the rotating shaft, and an anti-slip pad is provided on the surface of the auxiliary handle.

[0010] Preferably, a sliding groove is provided on the front end surface inside the anti-mis-touch device, connecting rods are fixedly provided on the front end surfaces of the two threaded blocks, and sliders located inside the sliding groove are provided on the front end surfaces of the two connecting rods.

[0011] Preferably, a movable shaft is movably connected between the movable pressing block and the telescopic rod, and a limiting plate is provided between each of the two insertion blocks and the two springs. Beneficial effects

[0012] The present utility model provides a self-locking bowl head hanger. Compared with the prior art, it has the following beneficial effects:

[0013] When the anti-misoperation device is in use, first, through the rotation of the rotating shaft, the double-headed lead screw inside the anti-misoperation device is driven to rotate. When the double-headed lead screw rotates, the threaded blocks sleeved on both sides of its outside are meshed and connected with it, and the two threaded blocks move in opposite directions. Then, when the two threaded blocks move, the telescopic sleeves and telescopic rods above them all move together. After they are displaced to both sides of the handle, by pulling the telescopic rod upward, the sliding plate at the lower end face of the telescopic rod slides in the sliding grooves on both sides inside the telescopic sleeve through the storage groove inside the telescopic sleeve, so that the telescopic rod extends out of the telescopic sleeve. At this time, when the insertion blocks on both sides inside the telescopic rod move, they are extruded and moved in the storage groove, and the spring on one side is compressed. Then, when the insertion block reaches the through hole position, the spring will loosen and pop it out, so that the insertion block and the telescopic sleeve are fixedly connected through the through hole. The length of the telescopic rod can be adjusted as needed. The movable pressing block above the telescopic rod is located above the handle. At this time, through the movement of the movable shaft, it is flipped so that the clamping block at the lower end face of the movable pressing block is aligned with the clamping groove inside the handle and snapped in to fix the handle, preventing the ball valve from being accidentally opened. Description of the Drawings

[0014] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0015] Figure 2 Schematic cross-sectional structure diagram of the anti-misoperation device of the present utility model;

[0016] Figure 3 Schematic enlarged partial structure diagram at cross-section A of the anti-misoperation device of the present utility model;

[0017] Figure 4 Schematic cross-sectional structure diagram of the telescopic rod of the present utility model.

[0018] In the figure: 1, pipeline; 2, cover plate; 3, valve body; 4, handle; 5, anti-misoperation device; 6, limit sliding groove; 7, telescopic rod; 8, telescopic sleeve; 9, threaded block; 10, double-headed lead screw; 11, rotating shaft; 12, movable pressing block; 13, movable shaft; 14, clamping block; 15, clamping groove; 16, spring groove; 17, insertion block; 18, spring; 19, storage groove; 20, sliding plate; 21, sliding groove; 22, through hole. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution: a ball valve for preventing accidental opening, including a valve body 3, a cover plate 2 is arranged on the upper end surface of the valve body 3, a handle 4 is arranged above the cover plate 2, an anti-mis-touch device 5 is arranged on one side of the upper end surface of the cover plate 2, a rotating shaft 11 is arranged on one side of the anti-mis-touch device 5, a double-headed lead screw 10 located inside the anti-mis-touch device 5 is connected to one side of the rotating shaft 11, both sides of the outside of the double-headed lead screw 10 are meshed and sleeved with threaded blocks 9, a limit sliding groove 6 is arranged inside the upper end surface of the anti-mis-touch device 5, telescopic sleeves 8 are fixedly arranged on the upper end surfaces of the two threaded blocks 9, pipelines 1 are fixedly arranged on both sides of the valve body 3, and flange connection discs are fixedly arranged on one side of the two pipelines 1, and they can be connected through the flange connection discs;

[0021] A storage groove 19 is arranged inside the telescopic sleeve 8, sliding grooves 21 located inside the telescopic sleeve 8 are arranged on both sides of the storage groove 19, a telescopic rod 7 is arranged inside the storage groove 19, a sliding plate 20 located inside the two sliding grooves 21 is fixedly arranged on the lower end surface of the telescopic rod 7, spring grooves 16 are fixedly arranged on both sides inside the telescopic rod 7, springs 18 are arranged inside the two spring grooves 16, insertion blocks 17 are arranged on one side of the two springs 18, a limit rod is arranged above the cover plate 2, the handle 4 is movably sleeved outside the limit rod, an auxiliary handle is arranged on one side of the rotating shaft 11, and an anti-slip pad is arranged on the avoidance side of the auxiliary handle to facilitate the rotational movement of the handle 4. At the same time, the auxiliary handle can improve the convenience efficiency;

[0022] A plurality of uniformly arranged through holes 22 are opened on both sides of the telescopic sleeve 8, the insertion block 17 and the telescopic sleeve 8 are connected through the through holes 22, movable pressing blocks 12 are arranged above the two telescopic rods 7, clamping blocks 14 are fixedly arranged on the lower end surfaces of the two movable pressing blocks 12, clamping grooves 15 are arranged inside both sides of the upper end surface of the handle 4, and the two clamping blocks 14 are both clamped into the two clamping grooves 15. A sliding groove is opened on the front end surface inside the anti-mis-touch device 5, connecting rods are fixedly arranged on the front end surfaces of the two threaded blocks 9, and sliders located inside the sliding groove are arranged on the front end surfaces of the two connecting rods. An activity shaft 13 is movably connected between the movable pressing block 12 and the telescopic rod 7, and limit plates are arranged between the two insertion blocks 17 and the two springs 18.

[0023] During operation, first, the rotation of the rotating shaft 11 drives the double-headed lead screw 10 inside the anti-misoperation device 5 to rotate. When the double-headed lead screw 10 rotates, the threaded blocks 9 sleeved on both sides of its outer part are engaged with it, and the two threaded blocks 9 move in opposite directions. While the two threaded blocks 9 are moving, the telescopic sleeves 8 and telescopic rods 7 above them also move together. After they are displaced to both sides of the handle 4, the telescopic rod 7 is pulled upward, so that it slides through the sliding plate 20 at the lower end surface of the telescopic rod 7 in the sliding grooves 21 on both sides of the inside of the telescopic sleeve 8, and the telescopic rod 7 extends out of the telescopic sleeve 8. At this time, the insertion blocks 17 on both sides of the inside of the telescopic rod 7 move and are extruded in the receiving groove 19 during the movement, and the spring 18 on one side of them is compressed. When the insertion block 17 reaches the through hole 22, the spring 18 will loosen and eject it, so that the insertion block 17 is fixedly connected to the telescopic sleeve 8 through the through hole 22. The length of the telescopic rod 7 can be adjusted as needed. The movable pressing block 12 above the telescopic rod 7 is located above the handle 4. At this time, the movable pressing block 12 is flipped through the movement of the movable shaft 13, and the clamping block 14 at the lower end surface of the movable pressing block 12 is aligned with the clamping groove 15 inside the handle 4 and inserted to fix the handle, preventing the ball valve from being accidentally opened.

[0024] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A ball valve for preventing accidental opening, comprising a valve body (3), characterized in that: The upper end surface of the valve body (3) is provided with a cover plate (2), a handle (4) is provided above the cover plate (2), an anti-accidental touch device (5) is provided on one side of the upper end surface of the cover plate (2), a rotating shaft (11) is provided on one side of the anti-accidental touch device (5), one side of the rotating shaft (11) is connected to a double-headed screw (10) located inside the anti-accidental touch device (5), both sides of the outside of the double-headed screw (10) are meshed and sleeved with threaded blocks (9), a limiting sliding groove (6) is provided inside the upper end surface of the anti-accidental touch device (5), the upper end surfaces of the two threaded blocks (9) are fixedly provided with a telescopic sleeve (8), a receiving groove (19) is provided inside the telescopic sleeve (8), both sides of the receiving groove (19) are provided with sliding grooves (21) located inside the telescopic sleeve (8), and a telescopic sleeve rod is provided inside the receiving groove (19). (7), a sliding plate (20) located inside two sliding grooves (21) is fixedly provided on the lower end surface of the telescopic sleeve (7), spring grooves (16) are fixedly provided on both sides of the telescopic sleeve (7), springs (18) are provided inside the two spring grooves (16), and plug blocks (17) are provided on one side of the two springs (18). A plurality of evenly arranged through holes (22) are provided on both sides of the telescopic sleeve (8), and the plug blocks (17) are connected to the telescopic sleeve (8) through the through holes (22). A movable pressure block (12) is provided above the two telescopic sleeves (7), and a clamping block (14) is fixedly provided on the lower end surfaces of the two movable pressure blocks (12). Clamping grooves (15) are provided inside the two sides of the upper end surface of the handle (4), and the two clamping blocks (14) are clamped into the two clamping grooves (15).

2. A ball valve for preventing accidental opening according to claim 1, characterized in that: Pipelines (1) are fixedly arranged on both sides of the valve body (3), and flange connection plates are fixedly arranged on one side of the two pipes (1).

3. A ball valve for preventing accidental opening according to claim 1, characterized in that: A limit rod is arranged above the cover plate (2), and the handle (4) is movably sleeved on the outside of the limit rod.

4. A ball valve for preventing accidental opening according to claim 1, characterized in that: An auxiliary handle is provided on one side of the rotating shaft (11), and an anti-slip pad is provided on the side of the auxiliary handle.

5. A ball valve for preventing accidental opening according to claim 1, characterized in that: A sliding groove is provided on the front end surface inside the anti-mistaken-touch device (5), a connecting rod is fixedly provided on the front end surfaces of the two threaded blocks (9), and a sliding block located inside the sliding groove is provided on the front end surfaces of the two connecting rods.

6. A ball valve for preventing accidental opening according to claim 1, characterized in that: A movable shaft (13) is movably connected between the movable pressing block (12) and the telescopic sleeve rod (7), and a limit plate is provided between the two inserting blocks (17) and the two springs (18).

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