Locking type manual ball valve

Abstract

The utility model discloses a locking type manual ball valve, including the valve body, install the valve stem of valve body, install in the valve body and be connected the ball of valve stem and install the manual actuator of valve body and be connected valve stem, the control seat is equipped with to the valve body outside, the control block is slidably arranged on the control seat, is equipped with the butt joint hole of the control seat with valve stem on the valve body, the locking assembly is slidably arranged in the butt joint hole, the locking assembly has the locking state for limiting the rotation of valve stem and the non -locking state of cooperation valve stem, and the sealing structure that does not interfere with the action of locking assembly is equipped between locking assembly and butt joint hole, and the control block is switched between locking state and non -locking state through linkage structure connection between locking assembly and control block to make control block go to control locking assembly through linkage structure. The utility model has the following advantages and effects: the utility model can lock the valve in the closed state, prevent the accidental opening of valve due to accidental triggering or misoperation, make this valve have higher security.

Description

Technical Field

[0001] This utility model relates to a valve, and more particularly to a locking manual ball valve. Background Technology

[0002] A ball valve is a valve whose opening and closing element is a ball that is driven by a valve stem and rotates around the valve's axis. It can also be used for fluid regulation and control. The valve opens or closes when the through-hole on the ball is aligned with or offset from the pipeline axis. Ball valves should generally be installed horizontally in pipelines. Ball valves are classified into three types according to their actuation method: pneumatic ball valves, electric ball valves, and manual ball valves. A ball valve mainly consists of a valve body, ball, valve stem, and valve seat.

[0003] Manual ball valves rely on an actuator equipped with a handwheel to drive the valve stem, which in turn rotates the ball. To prevent the ball valve from changing its original state due to accidental triggering or misoperation, some manual ball valves on the market currently have a special locking structure to avoid accidental triggering or misoperation. This improved solution was developed to circumvent existing locking structures on the market. Utility Model Content

[0004] The purpose of this utility model is to provide a locking manual ball valve. This application can lock the valve in the closed state to prevent accidental opening of the valve due to accidental triggering or misoperation, thus making the valve more secure.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a locking manual ball valve, comprising a valve body, a valve stem installed on the valve body, a ball installed in the valve body and connected to the valve stem, and a manual actuator installed in the valve body and connected to the valve stem. A control seat is provided outside the valve body, and a control block is slidably disposed on the control seat. A docking hole is provided on the valve body to connect the control seat and the valve stem. A locking component is slidably disposed in the docking hole. The locking component has a locked state and an unlocked state that cooperate with the valve stem and are used to restrict the rotation of the valve stem. A sealing structure that does not interfere with the operation of the locking component is provided between the locking component and the docking hole. The locking component and the control block are connected by a linkage structure so that the control block controls the locking component to switch between the locked state and the unlocked state through the linkage structure.

[0006] By adopting the above technical solution, when the valve is in the closed state, the sliding control block controls the locking component to switch from the unlocked state to the locked state through the linkage structure. This allows the locking component to cooperate with the valve stem to restrict its rotation, thereby preventing accidental valve opening due to mis-triggering or misoperation, thus enhancing the valve's safety. Furthermore, a sealing structure ensures a tight seal at the mating hole, preventing leakage.

[0007] The locking assembly is further configured such that: the locking component includes a locking pin slidably disposed in the mating hole and a locking groove formed on the outer peripheral wall of the valve stem for the locking pin to be inserted; the locking pin reciprocates between the control seat and the valve stem; and when the valve is in the closed state, the movement paths of the locking groove and the locking pin intersect.

[0008] By adopting the above technical solution, when the valve is in the closed state, the movement paths of the locking groove and the locking pin intersect. By inserting the locking pin into the locking groove, the valve stem can be restricted from driving the ball to rotate, thereby achieving the locking purpose and avoiding accidental triggering or misoperation.

[0009] The control block is further configured such that it is slidably disposed on the control seat along the valve stem axis, and the control block has a first position and a second position above the first position. When the control block is in the second position, a detachable positioning structure for positioning the control block is formed between the control block and the control seat.

[0010] By adopting the above technical solution, when the control block is in the second position, the position of the control block is positioned by the set detachable positioning structure, so as to avoid the control block being affected by gravitational potential energy, thereby achieving the purpose of stable control, and the detachable positioning structure will not affect the movement of the control block.

[0011] The linkage structure is further configured as follows: the linkage structure includes a linkage hole formed in the control block and extending along the movement direction of the control block, a linkage rod connected to a locking pin and passing through the linkage hole, and a linkage inclined hole formed in the control block and extending along the movement direction of the control block and gradually inclined. The linkage rod is slidably disposed in the linkage inclined hole.

[0012] By adopting the above technical solution, the control block guides the linkage rod to move along the linkage inclined hole during the sliding process, and under the influence of the inclination characteristics of the linkage inclined hole, it drives the locking pin to move towards the locking groove side through the linkage rod to achieve reciprocating motion, thereby forming the linkage between the control block and the locking pin.

[0013] The locking pin is further configured such that a slot is provided for the insertion of the linkage rod, and the linkage rod is tightly fitted and fixed to the slot.

[0014] By adopting the above technical solution, the slot is designed to facilitate the assembly of the control block, linkage rod and locking pin, making the assembly operation more convenient.

[0015] The positioning structure is further configured as follows: the positioning structure is a positioning magnetic block that is fixedly mounted on the control seat and magnetically attached to the control block.

[0016] By adopting the above technical solution, this configuration structure is easy to operate and has low cost.

[0017] The control base is further configured to include two interlocking control sections and a plurality of fixing bolts, wherein the fixing bolts pass through the two control sections in sequence and are threadedly connected to the valve body.

[0018] By adopting the above technical solution, this configuration structure enables convenient assembly and fixation of the control seat on the valve body.

[0019] The sealing structure is further configured as follows: the sealing structure consists of multiple sealing rings disposed between the locking pin and the mating hole, and the sealing rings are fitted and fixed to the locking pin.

[0020] By adopting the above technical solution, the sealing ring is used to ensure the sealing between the locking pin and the mating hole, thus preventing leakage.

[0021] In summary, the present invention has the following beneficial effects: the present invention can lock the valve in the closed state, preventing the valve from being accidentally opened due to mis-triggering or misoperation, thus making the valve more secure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 for Figure 1 Enlarged view of section A in the middle; Figure 3 This is a partial structural diagram of an embodiment; Figure 4 This is a partial exploded view of an embodiment.

[0023] In the diagram: 1. Valve body; 2. Valve stem; 3. Ball; 4. Manual actuator; 5. Control seat; 51. Control unit; 52. Fixing bolt; 6. Control block; 7. Connecting hole; 8. Locking assembly; 81. Locking pin; 82. Locking groove; 9. Linkage structure; 91. Linkage hole; 92. Linkage rod; 93. Linkage oblique hole; 10. Slot; 11. Positioning magnet; 12. Sealing ring. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] refer to Figures 1 to 4A locking manual ball valve includes a valve body 1, a valve stem 2 installed in the valve body 1, a ball 3 installed inside the valve body 1 and connected to the valve stem 2, and a manual actuator 4 fixedly installed in the valve body 1 and connected to the valve stem 2. A control seat 5 is provided on the outside of the valve body 1, and a control block 6 is slidably mounted on the control seat 5. A mating hole 7 is provided on the valve body 1, connecting the control seat 5 and the valve stem 2. A locking component 8 is slidably mounted in the mating hole 7, having a locked state and an unlocked state that cooperate with the valve stem 2 and restricts its rotation. A sealing structure is provided between the locking component 8 and the mating hole 7 to prevent interference with the operation of the locking component 8. The locking component 8 and the control block 6 are connected by a linkage structure 9, allowing the control block 6 to control the locking component 8 to switch between the locked and unlocked states via the linkage structure 9.

[0026] The locking assembly 8 includes a locking pin 81 that is slidably disposed in the docking hole 7 and a locking groove 82 that is opened on the outer peripheral wall of the valve stem 2 for the locking pin 81 to be inserted. The locking pin 81 reciprocates between the control seat 5 and the valve stem 2. When the valve is in the closed state, the movement paths of the locking groove 82 and the locking pin 81 intersect.

[0027] The control block 6 is slidably mounted on the control seat 5 along the axis of the valve stem 2. The control block 6 has a first position and a second position above the first position. When the control block 6 is in the second position, a detachable positioning structure for positioning the control block 6 is formed between the control block 6 and the control seat 5. The positioning structure is a positioning magnetic block 11 fixedly mounted on the control seat 5 and magnetically fixed to the control block 6. The control block 6 is made of cast iron.

[0028] The linkage structure 9 includes a linkage hole 91 formed in the control block 6 and extending along the movement direction of the control block 6, a linkage rod 92 connected to the locking pin 81 and passing through the linkage hole 91, and a linkage inclined hole 93 formed in the control block 6 and extending along the movement direction of the control block 6 and gradually inclined. The linkage rod 92 extends and slides within the linkage inclined hole 93. The locking pin 81 has a slot 10 for inserting the linkage rod 92. The linkage rod 92 is tightly fitted and fixed to the slot 10 by force. The linkage rod 92 is inserted into the slot 10 and tightly fitted and fixed by force.

[0029] The control base 5 includes two interlocking control sections 51 and multiple fixing bolts 52. The fixing bolts 52 pass through the two control sections 51 in sequence and are threadedly connected to the valve body 1. The control block 6 is slidably disposed on one of the control sections 51, and the positioning magnetic block 11 is fixedly disposed on one of the control sections 51. The sealing structure consists of multiple sealing rings 12 disposed between the locking pin 81 and the mating hole 7, and the sealing rings 12 are fitted and fixed to the locking pin 81. The manual actuator 4 is existing technology, and its specific structure and principle will not be described in detail here.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A locking manual ball valve, comprising a valve body (1), a valve stem (2) mounted on the valve body (1), a ball (3) mounted inside the valve body (1) and connected to the valve stem (2), and a manual actuator (4) mounted on the valve body (1) and connected to the valve stem (2), characterized in that: The valve body (1) is provided with a control seat (5) on the outside. A control block (6) is slidably disposed on the control seat (5). The valve body (1) is provided with a docking hole (7) connecting the control seat (5) and the valve stem (2). A locking component (8) is slidably disposed in the docking hole (7). The locking component (8) has a locked state and an unlocked state that cooperate with the valve stem (2) and is used to restrict the rotation of the valve stem (2). A sealing structure that does not interfere with the operation of the locking component (8) is provided between the locking component (8) and the docking hole (7). The locking component (8) and the control block (6) are connected by a linkage structure (9) so that the control block (6) controls the locking component (8) to switch between the locked state and the unlocked state through the linkage structure (9).

2. The locking manual ball valve according to claim 1, characterized in that: The locking assembly (8) includes a locking pin (81) slidably disposed in the docking hole (7) and a locking groove (82) opened on the outer peripheral wall of the valve stem (2) for the locking pin (81) to be inserted. The locking pin (81) reciprocates between the control seat (5) and the valve stem (2). When the valve is in the closed state, the movement paths of the locking groove (82) and the locking pin (81) intersect.

3. The locking manual ball valve according to claim 2, characterized in that: The control block (6) is slidably disposed on the control seat (5) along the axis of the valve stem (2). The control block (6) has a first position and a second position above the first position. When the control block (6) is in the second position, a detachable positioning structure for positioning the control block (6) is formed between the control block (6) and the control seat (5).

4. The locking manual ball valve according to claim 3, characterized in that: The linkage structure (9) includes a linkage hole (91) opened in the control block (6) and extending along the movement direction of the control block (6), a linkage rod (92) connected to the locking pin (81) and passing through the linkage hole (91), and a linkage inclined hole (93) formed in the control block (6) and extending along the movement direction of the control block (6) and gradually inclined. The linkage rod (92) is slidably disposed in the linkage inclined hole (93).

5. The locking manual ball valve according to claim 4, characterized in that: The locking pin (81) is provided with a slot (10) for inserting the linkage rod (92), and the linkage rod (92) is tightly fitted and fixed to the slot (10).

6. The locking manual ball valve according to claim 3, characterized in that: The positioning structure is a positioning magnetic block (11) that is fixedly installed on the control base (5) and magnetically fixed to the control block (6).

7. The locking manual ball valve according to claim 1, characterized in that: The control base (5) includes two interlocking control parts (51) and a plurality of fixing bolts (52). The fixing bolts (52) pass through the two control parts (51) in sequence and are threadedly connected to the valve body (1).

8. The locking manual ball valve according to claim 1, characterized in that: The sealing structure consists of multiple sealing rings (12) disposed between the locking pin (81) and the mating hole (7), and the sealing rings (12) are fitted and fixed to the locking pin (81).

Images