False touch prevention fluorine lining ball valve

Abstract

The utility model discloses a false touch prevention fluorine lining ball valve which comprises a valve body, a valve rod is sleeved on the valve body, the valve rod is provided with an opening and closing piece for opening and closing rotation of the valve rod, the opening and closing piece comprises two operating rods and a hinge piece hinged to the two operating rods, and the upper end of the valve rod is provided with a containing cavity for containing the opening and closing piece in the length direction of the valve rod. A use groove perpendicular to the length direction of the storage cavity is formed in an upper end opening of the storage cavity, and the two operating rods have the storage mistaken touch state of being placed in the storage cavity and the opening and closing state of being matched with the use groove to drive the valve rod to rotate through hinge pieces. When the opening and closing piece of the fluorine-lined ball valve is located in the containing cavity, the negative effect caused by mistakenly touching the opening and closing piece can be effectively avoided, when the opening and closing piece is located in the using groove, the opening and closing state of the ball valve can be conveniently changed, operation is easy, and the using safety and reliability of the ball valve are greatly improved through the design.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, especially a kind of fluorine-lined ball valve of preventing mistaken touch. BACKGROUND

[0002] Valve is ball valve, a kind of open-close member (ball) is driven by valve stem, and rotates around ball valve axis, is widely used in fluid control, and the main structure of ball valve is composed of valve body, valve ball, valve stem and the like.

[0003] The open-close member of the valve stem of the prior art usually includes hand wheel, handle and handle, and these open-close members control the open-close state of valve, when open-close member is in opening or closing state, operator may inadvertently touch open-close member and change the working state of valve;For example, in industrial production process, staff inadvertently trip open-close member, and change the open-close state of ball valve, cause undesirable consequences, so that safety and reliability are reduced, and therefore the fluorine-lined ball valve is provided to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of fluorine-lined ball valve of preventing mistaken touch, the open-close member of the fluorine-lined ball valve can effectively avoid the undesirable consequences that occur when being located in storage cavity, open-close member is in use slot, and the open-close state of the ball valve is facilitated to change.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of fluorine-lined ball valve of preventing mistaken touch, including valve body, the valve body is sleeved with valve stem, the valve stem is equipped with open-close member that the valve stem rotates, the open-close member includes two operating rods and the hinge element articulated to two operating rods, the valve stem upper end is equipped with the storage cavity along the length direction of valve stem for open-close member placement, the storage cavity upper end port is equipped with the use slot perpendicular along the length direction of storage cavity, two operating rods have the storage mistaken touch state of being placed into storage cavity by hinge element and the open-close state for being used to drive valve stem rotation by cooperation use slot.

[0006] By adopting the above technical scheme, by the setting of open-close member, open-close member can effectively avoid the undesirable consequences that occur when being located in storage cavity, open-close member is in use slot, and the open-close state of the ball valve is facilitated to change.

[0007] Further setting is: the sliding cavity perpendicular along the length direction of use slot is opened in the upper side of the use slot, lock block is slidably arranged in the sliding cavity, spring for driving lock block in and out of use slot is arranged in the sliding cavity, when the open-close member is in the storage mistaken touch state, one end of the lock block extends out of the sliding cavity and is located above two operating rods.

[0008] By adopting the technical scheme, when the ball valve needs to be operated, the opening and closing member only needs to be changed from the storage mis-touch state to the opening and closing state. In this process, the operator can make the lock block retract into the sliding cavity against the elastic force of the spring through appropriate means (such as manual pushing or pulling), so as to release the blockage of the operating rod. At this time, the operating rod can drive the valve stem to rotate in cooperation with the groove, so as to realize the opening and closing operation of the ball valve. This design makes the opening and closing operation of the ball valve convenient and fast. When the opening and closing member is in the storage mis-touch state, the lock block extends out of the sliding cavity and is located directly above the two operating rods under the action of the spring, effectively blocking the mis-touch of the operating rod from the outside, thereby avoiding the improper change of the opening and closing state of the ball valve due to misoperation. This design greatly improves the safety and reliability of the ball valve in use.

[0009] Further, the lock block is provided with two lock blocks, and the side of the two operating rods facing the sliding cavity is provided with a locking groove. When the opening and closing member is in the opening and closing state, one end of the two lock blocks extends out of the sliding cavity and forms a plug-in connection with the locking groove.

[0010] By adopting the above technical scheme, when the opening and closing member is in the opening and closing state, one end of the two lock blocks extends out of the sliding cavity and forms a plug-in connection with the locking groove. This plug-in connection structure can effectively lock the lock block and the operating rod together, preventing the operating rod from accidentally sliding or rotating during operation, thereby ensuring the stability of the opening and closing state of the ball valve. At the same time, this locking structure also makes the opening and closing member more firm and reliable in the opening and closing state.

[0011] Further, the two lock blocks are provided with a linkage block away from the use groove, and the linkage block is fixedly connected to the two lock blocks. One end of the linkage block extends out of the outside.

[0012] By adopting the above technical scheme, the two lock blocks are provided with a linkage block away from the use groove, and the linkage block is fixedly connected to the two lock blocks. This design enables the two lock blocks to move synchronously during operation, improving the operation efficiency and accuracy of the lock block. In addition, one end of the linkage block extends out of the outside, which facilitates the operator to operate and control the lock block from the outside, further improving the convenience of the ball valve in use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a partial schematic view of the top end of the valve stem of the present embodiment;

[0014] Fig. 2 It is an (explosion + internal structure) schematic view of the top end of the valve stem of the present embodiment;

[0015] Fig. 3 It is a schematic view of the overall structure of the present embodiment;

[0016] In the figure: 1, valve body; 2, valve stem; 3, operating rod; 31, hinge; 21, storage cavity; 22, use slot; 23, sliding cavity; 5, lock block; 52, spring; 32, locking groove; 51, linkage block; 4, outer cover; DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail below in combination with the drawings.

[0018] Reference Figs. 1 to 3 A kind of anti-mis-touch fluorine-lined ball valve, including valve body 1, valve body 1 is equipped with valve stem 2, valve stem 2 top end is threadedly connected with outer cover 4, play dustproof effect, valve stem 2 is equipped with open-close piece that open-close valve stem 2 rotates, open-close piece includes two operating rods 3 and hinge in two operating rods 3 Hinge 31, valve stem 2 upper end is equipped with along the length direction of valve stem 2 for the storage cavity 21 of open-close piece placement, storage cavity 21 upper end port is equipped with along the length direction of storage cavity 21 vertically Use slot 22, two operating rods 3 have the storage mis-touch state of being placed into storage cavity 21 by hinge 31 and the open-close state for being used for driving valve stem 2 rotation with cooperation use slot 22.

[0019] Located use slot 22 upper side is equipped with along the length direction of use slot 22 vertically Sliding cavity 23, sliding cavity 23 is slidably provided with lock block 5, sliding cavity 23 is provided with spring 52 that drives lock block 5 in and out use slot 22, spring 52 is provided with two, when open-close piece is in operating rod 3 storage mis-touch state, lock block 5 one end extends out of sliding cavity 23 and is located above two operating rods 3. Lock block 5 is provided with two, the side of two operating rods 3 towards sliding cavity 23 is equipped with locking groove 32, when open-close piece is in open-close state, one end of two lock blocks 5 extends out of sliding cavity 23 and forms insertion with locking groove 32. Two lock blocks 5 are provided with linkage block 51 away from use slot 22, linkage block 51 is fixedly connected to two lock blocks 5, and one end of linkage block 51 extends out of external.

[0020] Overall working procedure: when needing open-close piece to be in storage mis-touch state, linkage block 51 is driven into sliding cavity 23 by finger poking, lock block 5 exits locking groove 32, manually rotates two lock blocks 5, so that the switching angle is converted to 0 degree, open-close piece returns to storage mis-touch state, and mis-touch operation is prevented;When needing open-close piece to be in open-close state, linkage lever is poked, linkage lever drives lock block 5 to enter sliding cavity 23, then open-close piece is pulled out from storage cavity 21, so that the switching angle of two lock blocks 5 is converted to 180 degrees, the compression restoring force of spring 52 makes one end of two lock blocks 5 extend out of sliding cavity 23 and form insertion with locking groove 32, lock operating rod 3 in use slot 22, so that fixed effect in use state is realized, accidental sliding or rotation is prevented.

[0021] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a modification without creative contribution can be made to the embodiment according to needs by a person skilled in the art after reading the specification, but as long as the modification is within the scope of the claims of the utility model, the utility model is protected by the patent law.

Claims

1. A fluoropolymer-lined ball valve designed to prevent accidental contact, comprising a valve body (1), wherein a valve stem (2) is fitted onto the valve body (1), and the valve stem (2) is provided with an opening and closing element for rotating the valve stem (2), characterized in that: The opening and closing mechanism includes two control levers (3) and a hinge (31) hinged to the two control levers (3). The upper end of the valve stem (2) has a storage cavity (21) along the length of the valve stem (2) for placing the opening and closing mechanism. The upper port of the storage cavity (21) has a usage slot (22) perpendicular to the length of the storage cavity (21). The two control levers (3) are connected by the hinge (31) to a storage mis-touch state (placed in the storage cavity (21) and an opening and closing state (using the usage slot (22) to drive the valve stem (2) to rotate). A hinge (31) perpendicular to the length of the usage slot (22) is located on the upper side of the usage slot (22). A sliding cavity (23) is provided, in which a locking block (5) is slidably disposed. A spring (52) is provided in the sliding cavity (23) to drive the locking block (5) to move in and out of the slot (22). When the opening and closing part is in the storage mis-touch state, one end of the locking block (5) extends out of the sliding cavity (23) and is located directly above the two operating levers (3). There are two locking blocks (5). The two operating levers (3) are provided with locking grooves (32) on the side facing the sliding cavity (23). When the opening and closing part is in the opening and closing state, one end of the two locking blocks (5) extends out of the sliding cavity (23) and is inserted into the locking grooves (32).

2. The anti-accidental contact fluoropolymer ball valve according to claim 1, characterized in that: Two locking blocks (5) are provided with a linkage block (51) facing away from the slot (22). The linkage block (51) is fixedly connected to the two locking blocks (5), and one end of the linkage block (51) extends outward.

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