Ball valve with mistaken opening prevention structure

Abstract

The utility model discloses a ball valve with a mistaken opening prevention structure, which belongs to the field of ball valves and comprises a valve body, flanges fixedly connected to two sides of the valve body, a mounting table fixedly connected to the middle of the valve body, a valve rod movably mounted in the mounting table, and a rotating wheel movably mounted at the upper end of the valve rod. By means of the mistaken opening preventing mechanism, when the valve body needs to be opened, the rotating wheel is pressed downwards, the push rod is inserted into the fixing disc downwards, the bottom face of the push rod is flush with the bottom face of the fixing disc, the fixing rod is pushed out, the rotating wheel is rotated, and the first limiting groove drives the first limiting head to enable the valve rod to rotate; the operation is simple and convenient, when the valve body is closed, the fixing rod is inserted into the limiting hole of the fixing disc, and the valve rod cannot rotate when the rotating wheel is pushed under the condition that the rotating wheel is not pressed downwards, so that the valve body is protected from being opened by mistake, and the safety of the ball valve is higher in use.

Description

Technical Field

[0001] The utility model relates to the field of ball valves, in particular to a ball valve with an anti-misopening structure. Background Art

[0002] Ball valves are valves whose opening and closing parts (balls) are driven by valve stems and rotate around the axis of the ball valves. They can also be used for regulating and controlling fluids. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat welded with cemented carbide, which is particularly suitable for media containing fibers, tiny solid particles, etc. The opening and closing of manually operated ball valves are mainly carried out through switches. However, due to the complex personnel in the operating environment, the body and limbs of personnel are prone to collision and friction with the switch during activities and work, which may cause the ball valve to open by mistake, making the safety of existing manually operated ball valves not high. Therefore, an anti-misopening structure is needed to restrict the valve stem. In the absence of a correct operating method, the valve stem can be prevented from being opened by mistake, resulting in the circulation of fluid media and enhancing the safety of the valve body. Utility Model Content

[0003] The main purpose of the utility model is to provide a ball valve with an anti-misopening structure, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A ball valve with an anti-mistaken opening structure comprises a valve body, flanges are fixedly connected to the two sides of the valve body, a mounting platform is fixedly connected to the middle of the valve body, a valve stem is movably mounted in the mounting platform, a rotating wheel is movably mounted on the upper end of the valve stem, an anti-mistaken opening mechanism is movably mounted on the mounting platform, the valve stem and the rotating wheel, the anti-mistaken opening mechanism comprises a No. 1 receiving groove, a push rod, a No. 1 movable block, a fixed plate, a fixed platform, a No. 2 receiving groove, a No. 2 movable block and a fixed rod, the No. 1 receiving groove is arranged in the rotating wheel, the No. 1 spring is arranged in the rotating wheel, and the No. 1 spring is arranged in the rotating wheel. The spring is movably installed in the No. 1 receiving groove, the push rod is fixedly connected to the bottom surface of the rotating wheel and is located at the side of the No. 1 receiving groove, the No. 1 movable block is fixedly connected to the upper end of the valve stem and movably installed in the No. 1 receiving groove, the fixed plate is fixedly connected to the valve stem and is located below the No. 1 movable block, the fixed platform is fixedly connected to the mounting platform, the No. 2 receiving groove is opened in the fixed platform, the No. 2 movable block is movably installed in the No. 2 receiving groove, and one end of the fixed rod is fixedly connected to the No. 2 movable block.

[0006] Preferably, the anti-misopening mechanism also includes a No. 1 limiting groove and a No. 1 limiting head, the No. 1 limiting groove is opened on the inner wall of the No. 1 storing groove, the No. 1 limiting head is fixedly connected to the side position of the No. 1 movable block, and the No. 1 limiting head is movably installed in the No. 1 limiting groove.

[0007] Preferably, the anti-misopening mechanism further includes a No. 1 spring, and the No. 1 spring is movably installed in the No. 1 storage slot and is located above the No. 1 movable block.

[0008] Preferably, the anti-misopening mechanism further includes a limiting hole, the limiting hole is opened on the fixing plate, and the push rod and the fixing rod are movably installed in the limiting hole.

[0009] Preferably, the anti-misopening mechanism further includes a limiting plate, which is fixedly connected to the push rod and located above the fixed disk.

[0010] Preferably, the anti-misopening mechanism further includes a No. 2 spring, and the No. 2 spring is movably installed in the No. 2 storage slot and is located below the No. 2 movable block.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] When the cam is in the closed position, the valve stem is pushed back into the locking cam and the valve cap is retracted to open the valve body, thereby preventing the valve from being opened accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram of an inverted runner of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the fixed plate and the first movable block of the utility model;

[0016] Figure 4 It is a schematic cross-sectional structure diagram of the fixing platform of the utility model.

[0017] In the figure: 1. valve body; 2. flange; 3. mounting platform; 4. valve stem; 5. rotary wheel; 6. mis-opening prevention mechanism; 601. No. 1 receiving slot; 602. No. 1 limiting slot; 603. No. 1 spring; 604. push rod; 605. limiting plate; 606. No. 1 movable block; 607. No. 1 limiting head; 608. fixing plate; 609. limiting hole; 610. fixing platform; 611. No. 2 receiving slot; 612. No. 2 spring; 613. No. 2 movable block; 614. fixing rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-3 As shown, a ball valve with an anti-mistaken opening structure comprises a valve body 1, flanges 2 are fixedly connected to both sides of the valve body 1, a mounting platform 3 is fixedly connected to the middle of the valve body 1, a valve stem 4 is movably mounted in the mounting platform 3, a rotating wheel 5 is movably mounted on the upper end of the valve stem 4, an anti-mistaken opening mechanism 6 is movably mounted on the mounting platform 3, the valve stem 4 and the rotating wheel 5, and the anti-mistaken opening mechanism 6 comprises a No. 1 receiving groove 601, a push rod 604, a No. 1 movable block 606, a fixed plate 608, a fixed platform 610, No. 2 receiving groove 611, No. 2 movable block 613 and fixed rod 614, No. 1 receiving groove 601 is opened in the rotating wheel 5, No. 1 spring 603 is movably installed in the No. 1 receiving groove 601, push rod 604 is fixedly connected to the bottom surface of the rotating wheel 5 and is located at the side of the No. 1 receiving groove 601, No. 1 movable block 606 is fixedly connected to the upper end of the valve stem 4 and is movably installed in the No. 1 receiving groove 601, and the anti-misoperation mechanism 6 also includes a No. 1 limit The first limiting groove 602 is provided on the inner wall of the first receiving groove 601, the first limiting head 607 is fixedly connected to the side position of the first movable block 606, the first limiting head 607 is movably installed in the first limiting groove 602, and the anti-misoperation mechanism 6 also includes a first spring 603, the first spring 603 is movably installed in the first receiving groove 601, and is located above the first movable block 606, and the anti-misoperation mechanism 6 also includes a first spring 603. It includes a limiting plate 605, which is fixedly connected to the push rod 604 and is located above the fixed plate 608. The push rod 604 is inserted into the limiting hole 609 of the fixed plate 608 by moving the push rod 604 downward. The limiting plate 605 is used to limit the insertion depth of the push rod 604, which is equal to the thickness of the fixed plate 608, so that the bottom surface of the push rod 604 is flush with the bottom surface of the fixed plate 608, thereby facilitating the unobstructed sliding of the fixed rod 614.

[0020] like Figure 1 , Figure 2 and Figure 4As shown, the fixed plate 608 is fixedly connected to the valve stem 4 and is located below the No. 1 movable block 606. The fixed platform 610 is fixedly connected to the mounting platform 3. The No. 2 receiving groove 611 is opened in the fixed platform 610. The No. 2 movable block 613 is movably installed in the No. 2 receiving groove 611. One end of the fixed rod 614 is fixedly connected to the No. 2 movable block 613. The anti-misoperation mechanism 6 also includes a limiting hole 609. The limiting hole 609 is opened on the fixed plate 608. The push rod 604 and the fixed rod 614 are movably installed in the limiting hole. In the hole 609, the anti-misopening mechanism 6 also includes a No. 2 spring 612. The No. 2 spring 612 is movably installed in the No. 2 receiving groove 611 and is located below the No. 2 movable block 613. The No. 2 spring 612 is in a compressed state, thereby moving the No. 2 movable block 613 and the fixed rod 614 upward, so that the fixed rod 614 is inserted into the limiting hole 609 of the fixed disk 608, and the valve stem 4 is limited by the fixed rod 614. The fixed disk 608 is fixedly connected to the valve stem 4, so that the valve stem 4 will not rotate to avoid being accidentally opened.

[0021] It should be noted that the utility model is a ball valve with an anti-misopening structure, the valve stem 4 is connected to the opening and closing ball in the valve body 1, when the valve body 1 needs to be opened to allow the fluid medium to flow, the rotary wheel 5 is pressed downward, so that the top in the No. 1 receiving groove 601 presses the No. 1 spring 603 downward, so that the No. 1 spring 603 is compressed, and the push rod 604 on the bottom of the rotary wheel 5 moves downward synchronously, so that the push rod 604 is inserted into the limiting hole 609 in the fixed disk 608, as the fixed disk 608 and the limiting plate 605 on the push rod 604 contact each other, the push rod 604 is restricted and no longer moves downward, the bottom surface of the push rod 604 is flush with the bottom surface of the fixed disk 608, the number and position of the push rod 604 are consistent with the number and position of the limiting holes 609 on the fixed disk 608, and the push rod 604 enters the limiting hole 609, which will limit the limiting hole The fixing rod 614 in 609 is pushed out, so that the fixing rod 614 moves downward, and the No. 2 movable block 613 moves synchronously in the No. 2 receiving groove 611 and compresses the No. 2 spring 612. At this time, the restriction of the valve stem 4 is released, and the rotating wheel 5 is rotated. Through the mutual installation of the No. 1 restriction groove 602 and the No. 1 restriction head 607, the rotating wheel 5 drives the valve stem 4 to rotate, thereby opening the valve body 1. When the valve body 1 is closed, due to the upward push of the No. 1 spring 603, the push rod 604 moves out of the fixed disk 608, and the fixing rod 614 is pushed by the No. 2 spring 612 to move upward and insert into the restriction hole 609 of the fixed disk 608, so that the valve stem 4 is restricted and not easy to rotate. When the user accidentally turns the rotating wheel 5, due to the lack of correct downward pressing of the rotating wheel 5 first, the valve stem 4 will not rotate, thereby preventing accidental opening and making it safer to use.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. It is only a preferred embodiment of the utility model, and its description is more specific and detailed, but it cannot be understood as limiting the scope of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The embodiments can be changed, modified, replaced and deformed without departing from the principle and purpose of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A ball valve with an anti-misopening structure, characterized in that: The invention comprises a valve body (1), flanges (2) are fixedly connected to the two sides of the valve body (1), a mounting platform (3) is fixedly connected to the middle of the valve body (1), a valve stem (4) is movably installed in the mounting platform (3), and a rotating wheel (5) is movably installed on the valve stem (4) and the upper end of the valve stem (4), and is characterized in that an anti-mis-opening mechanism (6) is movably installed on the valve stem (4) and the rotating wheel (5) of the mounting platform (3), and the anti-mis-opening mechanism (6) comprises a No. 1 receiving groove (601), a push rod (604), a No. 1 movable block (606), a fixed plate (608), a fixed platform (610), a No. 2 receiving groove (611), a No. 2 movable block (613) and a fixed rod (614), the No. 1 receiving groove (601) is arranged in the rotating wheel (5), and the anti-mis-opening mechanism (6) also comprises a No. 1 spring (603), the No. 1 spring (604) and the No. 1 movable block (606). The spring (603) is movably installed in the No. 1 receiving groove (601) and is located above the No. 1 movable block (606). The push rod (604) is fixedly connected to the bottom surface of the rotating wheel (5) and is located on the side of the No. 1 receiving groove (601). The No. 1 movable block (606) is fixedly connected to the upper end of the valve stem (4) and is movably installed in the No. 1 receiving groove (601). The fixed plate (608) is fixedly connected to the valve stem (4) and is located below the No. 1 movable block (606). The fixed platform (610) is fixedly connected to the mounting platform (3). The No. 2 receiving groove (611) is opened in the fixed platform (610). The No. 2 movable block (613) is movably installed in the No. 2 receiving groove (611). One end of the fixed rod (614) is fixedly connected to the No. 2 movable block (613).

2. A ball valve with an anti-misopening structure according to claim 1, characterized in that: The anti-mis-opening mechanism (6) further comprises a No. 1 limiting groove (602) and a No. 1 limiting head (607); the No. 1 limiting groove (602) is formed on the inner wall of the No. 1 receiving groove (601); the No. 1 limiting head (607) is fixedly connected to a side position of the No. 1 movable block (606); and the No. 1 limiting head (607) is movably installed in the No. 1 limiting groove (602).

3. A ball valve with an anti-misopening structure according to claim 2, characterized in that: The anti-mis-opening mechanism (6) further comprises a limiting hole (609), wherein the limiting hole (609) is formed on the fixing plate (608), and the push rod (604) and the fixing rod (614) are movably mounted in the limiting hole (609).

4. A ball valve with an anti-misopening structure according to claim 3, characterized in that: The anti-mis-opening mechanism (6) further comprises a limiting plate (605), wherein the limiting plate (605) is fixedly connected to the push rod (604) and is located above the fixed plate (608).

5. A ball valve with an anti-misopening structure according to claim 4, characterized in that: The anti-mis-opening mechanism (6) further comprises a No. 2 spring (612), wherein the No. 2 spring (612) is movably mounted in the No. 2 receiving groove (611) and is located below the No. 2 movable block (613).

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