A ball valve with a lock structure to prevent misoperation

Abstract

This utility model relates to the field of ball valve technology and discloses a ball valve with an anti-misoperation locking structure. The ball valve includes a valve body, a locking rod, a rotating handle, a moving rod, a guide rail structure, and a fixing structure. The guide rail structure provides guidance for the rotating handle through the cooperation of the arc shell and the slider. The fixing structure is symmetrically arranged at both ends of the arc shell and is locked by a locking block, a Z-shaped rotating plate, a spring, and a magnetic attraction assembly. After the rotating handle is adjusted to the correct position, the locking block is inserted into the fixing shell, and the rotating plate engages with the locking groove under the action of the spring force to complete the locking. To unlock, pushing the unlocking block will release the engagement. This invention ensures the stability of the valve state through the locking mechanism and can effectively avoid safety hazards and production losses caused by misoperation.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a ball valve with a locking structure to prevent misoperation. Background Technology

[0002] A ball valve is a valve that opens and closes by rotating a ball around its axis with the help of a valve stem. It can be used not only for fluid on / off control but also for flow regulation. Ball valves have excellent wear resistance and shearing performance because the ball core and the metal valve seat with hard alloy overlay form a high-strength shear pair. They are particularly suitable for conveying complex media such as those containing fibers and small solid particles.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: During the operation of existing ball valves, the operating handle of existing manual ball valves is easily accidentally touched by personnel, which can cause the valve stem and valve core to rotate, leading to accidental opening and closing, resulting in unexpected fluctuations in the flow rate and velocity of the medium, and bringing potential risks. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that accidental contact can cause unexpected fluctuations in the flow rate and velocity of the medium, which brings potential risks. To this end, we propose a ball valve with an anti-misoperation locking structure.

[0005] To achieve the above objectives, this application adopts the following technical solution: a ball valve with an anti-misoperation locking structure, comprising a valve body, a locking rod disposed at the top of the valve body, a nut threadedly connected to the outside of the locking rod, a rotating handle disposed on the outside of the locking rod, a moving rod disposed at the bottom end of the rotating handle, a guide rail structure disposed on the outside of the valve body, the guide rail structure comprising an arc shell disposed on the outside of the valve body, a fixing structure disposed at both ends of the arc shell, the moving rod being slidably connected to the arc shell, the fixing structure comprising a locking block disposed at both ends of the moving rod, the locking block having a locking groove on its surface, the fixing structure comprising a fixing shell disposed at both ends of the arc shell, a rotating plate rotatably connected inside the fixing shell, the rotating plate being Z-shaped, as the locking block is inserted into the fixing shell, the locking groove on the surface of the locking block engaging and locking with one end of the rotating plate, a second spring disposed at one end of the rotating plate, the end of the second spring away from the rotating plate being connected to the inner wall of the fixing shell, an unlocking block slidably connected inside the fixing shell, the unlocking block being magnetically fixed to the arc shell.

[0006] Preferably, a receiving plate is provided on the outer side of the valve body, the receiving plate is connected to the arc shell, and baffles are provided at both ends of the arc shell for positioning the moving rod.

[0007] Preferably, the interior of the arc shell is provided with a sliding groove, and a slider is slidably connected inside the sliding groove. The slider is connected to the moving rod.

[0008] Preferably, the surface of the fixed shell has an opening that corresponds to the locking block, and the surface of the fixed shell also has a groove that is L-shaped, and the unlocking block moves within the groove.

[0009] Preferably, the fixed shell has a rotating shaft inside, which is connected to the rotating plate.

[0010] Preferably, a spring is provided inside the fixed shell, and a pressing block is provided at one end of the spring. The pressing block and the locking block are on the same horizontal line.

[0011] Preferably, one end of the unlocking block corresponds to one end of the rotating plate, one end of the unlocking block is provided with a connecting plate, the bottom end of the connecting plate is provided with a magnetic block one, and the top end of the arc shell is provided with a magnetic block two, and the magnetic block one and magnetic block two are magnetically fixed.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] The guide rail structure provides guidance for the rotating handle through the cooperation of the arc shell and the slider. The fixed structure is symmetrically arranged at both ends of the arc shell and is locked by a locking block, a Z-shaped rotating plate, a spring, and a magnetic attraction component. After the rotating handle is adjusted to the correct position, the locking block is inserted into the fixed shell, and the rotating plate engages with the locking groove under the action of the spring force to complete the lock. To unlock, simply push the unlocking block to release the engagement. This invention ensures the stability of the valve state through the locking mechanism, effectively avoiding safety hazards and production losses caused by misoperation. The locking is automatically triggered when the rotating handle is adjusted to the correct position, and unlocking only requires pushing the unlocking block, without the need for complicated tools, adapting to the needs of rapid operation. Thirdly, the structure is compact, with all components integrated on the outside of the valve shell, without changing the main structure of the ball valve, and is compatible with various specifications of manual ball valves, making installation and maintenance convenient. Fourthly, the guide rail structure and baffle limit ensure precise adjustment of the rotating handle angle, and together with the locking function, it can stably control the fluid flow rate and improve process stability. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the ball valve with a lock-up structure to prevent misoperation according to this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the guide rail structure, moving rod, and fixing structure of the ball valve with anti-misoperation locking structure of this utility model.

[0017] Figure 3 This is a three-dimensional unfolded structural diagram of the guide rail structure, moving rod, and fixing structure of the ball valve with anti-misoperation locking structure of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the fixing structure of the ball valve with anti-misoperation locking structure of this utility model;

[0019] Figure 5 This is a three-dimensional side view of the fixing structure of the ball valve with anti-misoperation locking structure of this utility model.

[0020] Legend: 1. Valve housing; 2. Locking rod; 3. Nut; 4. Rotary handle; 5. Guide rail structure; 51. Support plate; 52. Arc shell; 53. Baffle; 54. Slide groove; 55. Sliding block; 6. Fixing structure; 61. Locking block; 62. Locking groove; 63. Fixing shell; 64. Opening; 65. Rotating plate; 66. Rotating shaft; 67. Pressing block; 68. Spring 1; 69. Spring 2; 610. Unlocking block; 611. Connecting plate; 612. Magnetic block 1; 613. Magnetic block 2; 614. Groove; 7. Moving rod. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Reference Figure 1-5 As shown, this utility model provides a technical solution: a ball valve with an anti-misoperation locking structure, including a valve body 1, a locking rod 2 disposed at the top of the valve body 1, a nut 3 threadedly connected to the outside of the locking rod 2, a handle 4 disposed on the outside of the locking rod 2, a moving rod 7 disposed at the bottom end of the handle 4, a guide rail structure 5 disposed on the outside of the valve body 1, the guide rail structure 5 including an arc shell 52 disposed on the outside of the valve body 1, fixing structures 6 disposed at both ends of the arc shell 52, the moving rod 7 being slidably connected to the arc shell 52, and the fixing structure 6 including locking blocks 61 disposed at both ends of the moving rod 7. The surface of block 61 is provided with a slot 62. The fixing structure 6 includes a fixing shell 63 set at both ends of the arc shell 52. A rotating plate 65 is rotatably connected inside the fixing shell 63. The rotating plate 65 is Z-shaped. As the block 61 is inserted into the fixing shell 63, the slot 62 on the surface of the block 61 engages and locks with one end of the rotating plate 65. A second spring 69 is provided at one end of the rotating plate 65. The end of the second spring 69 away from the rotating plate 65 is connected to the inner wall of the fixing shell 63. An unlocking block 610 is slidably connected inside the fixing shell 63. The unlocking block 610 is magnetically fixed to the arc shell 52.

[0023] Reference Figure 1-5As shown in this embodiment: a receiving plate 51 is provided on the outer side of the valve housing 1, and the receiving plate 51 is connected to the arc housing 52. Baffles 53 are provided at both ends of the arc housing 52, and the baffles 53 are used for positioning the moving rod 7. A sliding groove 54 is embedded inside the arc housing 52, and a slider 55 is slidably connected inside the sliding groove 54. The slider 55 is connected to the moving rod 7. An opening 64 is provided on the surface of the fixed housing 63, and the opening 64 corresponds to the locking block 61. A slot 614 is also provided on the surface of the fixed housing 63. The slot 614 is L-shaped, and the unlocking block 610 moves within the slot 614. The interior of the fixed housing 63 rotates. A rotating shaft 66 is connected to a rotating plate 65. A spring 68 is installed inside the fixed shell 63. A pressing block 67 is installed at one end of the spring 68. The pressing block 67 and the locking block 61 are on the same horizontal line. The unlocking block 610 corresponds to one end of the rotating plate 65. A connecting plate 611 is installed at one end of the unlocking block 610. A magnetic block 612 is installed at the bottom of the connecting plate 611. A magnetic block 613 is installed at the top of the arc shell 52. The magnetic blocks 612 and 613 are magnetically fixed. Multiple mechanisms work together to ensure the stability of the locked state and effectively prevent the rotating handle 4 from rotating due to accidental contact or vibration.

[0024] The ball valve with anti-misoperation locking structure provided by the present invention includes a valve body 1, a locking rod 2 set at the top of the valve body 1, a nut 3 threadedly connected to the outside of the locking rod 2, a rotating handle 4 sleeved on the outside of the locking rod 2, a moving rod 7 fixedly connected to the bottom end of the rotating handle 4, a guide rail structure 5 set on the outside of the valve body 1, and a fixing structure 6 set at both ends of the guide rail structure 5.

[0025] Specifically, the valve body 1 is the main body of the ball valve, and the internal ball is connected to the locking rod 2 through a keyway. The top of the locking rod 2 extends out of the valve body 1 and is connected to the handle 4. The nut 3 is screwed onto the locking rod 2 to form an axial limit on the handle 4 and prevent the handle 4 from moving along the locking rod 2. The guide rail structure 5 includes a receiving plate 51 fixed on the outside of the valve body 1. An arc shell 52 is connected to the receiving plate 51. The arc of the arc shell 52 is consistent with the rotation trajectory of the handle 4. A sliding groove 54 is embedded inside the arc shell 52. The slider 55 slidably connected in the sliding groove 54 is fixed to the bottom end of the moving rod 7.

[0026] When the operator rotates the handle 4, the handle 4 drives the locking rod 2 and the internal ball to rotate, realizing the flow on / off or flow regulation. When the ball's through hole is perpendicular to the pipeline, the valve is fully closed; when the ball's through hole is aligned with the pipeline, the valve is fully open. The intermediate angle corresponds to different flow rates. The moving rod 7 rotates synchronously with the handle 4, and the slider 55 slides along the slide groove 54. The baffles 53 at both ends of the arc shell 52 limit the moving rod 7, ensuring that the handle 4 stops at the fully closed, fully open, or preset adjustment position.

[0027] In this structure, the guide rail structure 5 provides stable guidance for the handle 4, the cooperation between the slider 55 and the groove 54 reduces rotational resistance, the baffle 53 realizes angle control, laying the foundation for the subsequent locking function, and the limiting effect of the nut 3 ensures reliable transmission between the handle 4 and the locking rod 2. The overall structure takes into account both adjustment flexibility and positioning.

[0028] In this embodiment, the fixing structure 6 is symmetrically distributed at both ends of the arc shell 52, including a locking block 61 set at both ends of the moving rod 7. The locking block 61 has a locking groove 62 on its surface. The arc shell 52 is fixed at both ends of the fixing shell 63. The surface of the fixing shell 63 has an opening 64 corresponding to the locking block 61. The inside is rotatably connected to a Z-shaped rotating plate 65 through a rotating shaft 66. One end of the rotating plate 65 is connected to a second spring 69, and the other end is set corresponding to the locking groove 62. The fixing shell 63 is also provided with a pressing block 67 and a first spring 68. The unlocking block 610 is slidably connected to the fixing shell 63 through an L-shaped slot 614. The bottom end of the connecting plate 611 at one end is provided with a first magnetic block 612, and the top end of the arc shell 52 is provided with a second magnetic block 613.

[0029] When the handle 4 is adjusted to the target position, such as fully closed or fully open, the moving rod 7 drives the locking block 61 to align with the opening 64 of the fixed housing 63, and the handle 4 is continued to be pushed so that the locking block 61 is inserted into the fixed housing 63.

[0030] The locking block 61 contacts the pressing block 67 and pushes it to compress the spring 68. The spring 68 stores force to generate a reverse thrust, which enhances the fit between the locking block 61 and the fixed shell 63.

[0031] The moving rod 7 drives the connecting plate 611 to move, causing the magnetic block 1 612 to separate from the magnetic block 2 613. The connecting plate 611 pushes the unlocking block 610 to slide along the slot 614. The unlocking block 610 abuts against the rotating plate 65 to rotate around the rotating shaft 66. The other end of the rotating plate 65 compresses the second spring 69 to store force.

[0032] When the locking block 61 is fully inserted and the slot 62 is aligned with the end of the rotating plate 65, the handle 4 is released. The unlocking block 610 retracts under the magnetic attraction of the first magnetic block 612 and the second magnetic block 613. The rotating plate 65 rotates under the restoring force of the second spring 69, and its end is locked into the slot 62, thus completing the locking.

[0033] During this process, the thrust of spring 68 ensures that the locking block 61 and the fixed shell 63 are tightly fitted, spring 69 provides reliable locking force for the rotating plate 65, and the magnetic block cooperates to realize the automatic reset of the unlocking block 610. Multiple mechanisms work together to ensure the stability of the locked state and effectively prevent the rotating handle 4 from rotating due to accidental contact or vibration.

[0034] When the valve status needs to be readjusted, the unlocking procedure is as follows: The operator pushes the connecting plate 611 to separate the magnetic block 612 from the magnetic block 613. The connecting plate 611 drives the unlocking block 610 to slide along the L-shaped slot 614 into the fixed shell 63. The unlocking block 610 abuts against the rotating plate 65 and rotates around the rotating shaft 66. The end of the rotating plate 65 disengages from the slot 62, releasing the lock on the locking block 61. At this time, the restoring force of the spring 68 pushes the pressing block 67, causing the locking block 61 to exit from the opening 64. The operator can then rotate the handle 4 to readjust the valve.

[0035] After adjustment, repeat the locking steps in Example 2 to re-fix the handle 4. The unlocking process requires only a single push action, without the need for tools, making it convenient to operate and allowing for quick response to valve status adjustment needs in production. The automatic reset function of spring 68 assists in the disengagement of the locking block 61, reducing operating resistance and improving ease of use.

[0036] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A ball valve with a locking structure to prevent misoperation, characterized in that, The valve includes a valve housing (1), a locking rod (2) located at the top of the valve housing (1), and a nut (3) threaded to the outside of the locking rod (2). A handle (4) is also provided on the outside of the locking rod (2), and a moving rod (7) is provided at the bottom end of the handle (4). A guide rail structure (5) is provided on the outside of the valve housing (1). The guide rail structure (5) includes an arc shell (52) located on the outside of the valve housing (1). Fixed structures (6) are provided at both ends of the arc shell (52). The moving rod (7) is slidably connected to the arc shell (52). The fixed structure (6) includes a locking block (61) located at both ends of the moving rod (7). The surface of the locking block (61) is provided with a locking groove (62). The fixing structure (6) includes a fixing shell (63) set at both ends of the arc shell (52). A rotating plate (65) is rotatably connected inside the fixing shell (63). The rotating plate (65) is Z-shaped. As the locking block (61) is inserted into the fixing shell (63), the slot (62) opened on the surface of the locking block (61) engages and locks with one end of the rotating plate (65). A second spring (69) is set at one end of the rotating plate (65). The end of the second spring (69) away from the rotating plate (65) is connected to the inner wall of the fixing shell (63). An unlocking block (610) is slidably connected inside the fixing shell (63). The unlocking block (610) is magnetically fixed to the arc shell (52).

2. The ball valve with the misoperation prevention locking structure according to claim 1, characterized in that: A receiving plate (51) is provided on the outside of the valve body (1). The receiving plate (51) is connected to the arc shell (52). Baffles (53) are provided at both ends of the arc shell (52). The baffles (53) are used for positioning the moving rod (7).

3. The ball valve with the misoperation prevention locking structure according to claim 1, characterized in that: The arc shell (52) is provided with a sliding groove (54) inside, and a slider (55) is slidably connected inside the sliding groove (54). The slider (55) is connected to the moving rod (7).

4. The ball valve with an anti-misoperation locking structure according to claim 1, characterized in that: The surface of the fixed shell (63) is provided with an opening (64), which corresponds to the locking block (61). The surface of the fixed shell (63) is also provided with a groove (614), which is L-shaped. The unlocking block (610) moves within the groove (614).

5. The ball valve with an anti-misoperation locking structure according to claim 1, characterized in that: The fixed shell (63) is rotatably connected to a rotating shaft (66), which is connected to a rotating plate (65).

6. The ball valve with an anti-misoperation locking structure according to claim 1, characterized in that: The fixed shell (63) is provided with a spring (68) inside, and a pressing block (67) is provided at one end of the spring (68). The pressing block (67) and the locking block (61) are on the same horizontal line.

7. The ball valve with an anti-misoperation locking structure according to claim 1, characterized in that: The unlocking block (610) corresponds to one end of the rotating plate (65). One end of the unlocking block (610) is provided with a connecting plate (611). The bottom end of the connecting plate (611) is provided with a magnetic block one (612). The top end of the arc shell (52) is provided with a magnetic block two (613). Magnetic block one (612) and magnetic block two (613) are magnetically fixed.

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