Ball valve with anti-misoperation

Abstract

The application relates to a mistaken-touch-preventing ball valve which comprises a valve body and a valve rod, one end of the valve rod is located in the valve body and is provided with a ball core, the other end of the valve rod penetrates through the valve body and is provided with a handle, the valve body is provided with an annular block near one end of the handle, a rotating cavity for rotating the handle is formed in the annular block, a placing groove is further arranged in the valve body and is communicated with the rotating cavity, a partition plate is slidably connected in the placing groove, control rods are slidably connected on both sides of the rotating cavity, the control rods are located on both sides of the placing groove, a transmission rod is further arranged in the valve body and is rotationally connected with the valve body at the center, and the partition plate and the control rods are located at two ends of the transmission rod respectively. The mistaken-touch-preventing ball valve has the effect that the ball valve can keep a stable working state during work and is not easily interfered by the outside world.

Description

Technical Field

[0001] This application relates to the field of ball valves, and more particularly to a ball valve designed to prevent accidental contact. Background Technology

[0002] Currently, a ball valve includes a valve body, a ball core, a valve stem, and a handle. The valve body has a valve cavity, and the ball core is placed inside the valve cavity. The ball core has a connecting channel. The valve body has an inflow channel and an outflow channel that communicate with the valve cavity. A valve seat is provided between the valve cavity and the inflow channel and the outflow channel. The valve seat and the ball core form a seal. The valve seat is made of polytetrafluoroethylene. The valve stem and the ball core are linked and cooperate. The handle drives the valve stem to rotate, which in turn drives the ball core to rotate. When the two ends of the connecting channel are connected to the inflow channel and the outflow channel respectively, the valve is in the conducting state.

[0003] Regarding the aforementioned technologies, there are still some shortcomings: when the operator is in the open or closed state of the ball valve, the state of the ball valve may change due to the handle coming into contact with external objects, so further improvements are needed. Summary of the Invention

[0004] In order to ensure that the ball valve can maintain a stable working state and is not easily affected by external interference, this application provides a ball valve to prevent accidental contact.

[0005] This application provides a ball valve to prevent accidental contact, which adopts the following technical solution:

[0006] An anti-accidental contact ball valve includes a valve body and a valve stem. One end of the valve stem is located inside the valve body and has a ball core. The other end of the valve stem extends out of the valve body and has a handle. An annular block is provided at the end of the valve body near the handle. A rotating cavity for rotating the handle is formed on the annular block. A placement groove is also provided inside the valve body, and the placement groove communicates with the rotating cavity. A partition is slidably connected inside the placement groove. Control rods are slidably connected to both sides of the rotating cavity. The control rods are located on both sides of the placement groove. A transmission rod is also provided inside the valve body. The center of the transmission rod is rotatably connected to the valve body. The partition and the control rod are located at the two ends of the transmission rod, respectively.

[0007] By adopting the above technical solution, when the operator wants to keep the ball valve in working condition, the operator only needs to move the handle to the end of the control rod. At this time, the control rod will drive the end of the transmission rod to rotate, and the transmission rod acts as a lever to drive the partition to move out of the placement slot, thereby reaching the limit of the handle and making the handle unable to rotate.

[0008] Optionally, a spring is fixedly connected to the end of the control lever, with one end of the spring fixedly connected to the control lever and the other end of the spring fixedly connected to the valve body.

[0009] By adopting the above technical solution, when the operator wants to change the working state of the ball valve, the control rod will automatically reset under the action of the spring when the handle is no longer at the end of the control rod, without interfering with the movement of the diaphragm.

[0010] Optionally, the end of the control lever away from the spring is provided with an inclined end face, the inclined surface of which faces the side of the handle.

[0011] By adopting the above technical solution, the inclined end face has the function of guiding the handle to move the control rod, so that the control rod drives the transmission rod to move.

[0012] Optionally, the handle is made of iron, and magnetic components are fixedly connected to the cavity walls on both sides of the rotating cavity.

[0013] By adopting the above technical solution, when the magnetic component contacts the handle, the magnetic connection between the magnetic component and the handle is achieved, thereby enhancing the stability of the contact between the handle and the ring block and making the handle less prone to deviation.

[0014] Optionally, the valve body is further provided with a plurality of rubber blocks, which are fixedly connected to the valve body. The rubber blocks are arranged in a linear array and are in contact with the partition.

[0015] By adopting the above technical solution, the rubber block can increase the friction between the valve body and the baffle. When the handle is not in contact with the control rod, the rubber block slows down the movement speed of the baffle, so that the baffle can still limit the handle.

[0016] Optionally, the transmission rod and the spring are misaligned.

[0017] By adopting the above technical solution, the spring and the transmission rod will not interfere with each other, thus ensuring the normal operation of both.

[0018] In summary, the beneficial technical effects of this application are as follows: by limiting the handle by the partition, the handle cannot be rotated, thereby effectively maintaining the working state of the ball valve and making the ball valve less susceptible to external interference that could alter its working state. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a partial structural cross-sectional view of the transmission rod in an embodiment of this application.

[0021] Figure 3 This is a schematic cross-sectional view of a portion of the rubber block in an embodiment of this application.

[0022] Reference numerals: 1. Valve body; 2. Valve stem; 3. Ball core; 4. Handle; 5. Annular block; 6. Rotating cavity; 7. Placement groove; 8. Partition plate; 9. Control rod; 10. Transmission rod; 11. Spring; 12. Inclined end face; 13. Magnetic component; 14. Rubber block. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0024] This application discloses an anti-accidental contact ball valve. (Refer to...) Figure 1 A safety ball valve includes a valve body 1 and a valve stem 2. A ball core 3 is fixedly connected to one end of the valve stem 2. The ball core 3 is located inside the valve body 1. The other end of the valve stem 2 is detachably connected to an iron handle 4 for controlling the rotation of the ball core 3. The operator can select whether to open or close the ball valve by holding the handle 44.

[0025] Reference Figure 1 , Figure 2 An annular block 5 is fixedly connected to the valve body 1. The annular block 5 has a rotating cavity 6 for the handle 4 to rotate. When the handle 4 contacts the inner wall of the rotating cavity 6, the ball valve is in a fully closed or fully open state. Control rods 9 are slidably connected to both sides of the valve body 1 near the rotating cavity 6. A placement groove 7 is provided between the two control rods 9. A partition 8 is slidably connected in the placement groove 7. A transmission rod 10 is provided between the partition 8 and the adjacent control rod 9. The midpoint of the transmission rod 10 is rotatably connected to the valve body 1, and the two ends of the transmission rod 10 contact the bottom of the partition 8 and the control rod 9, respectively. When the operator moves handle 4 towards control lever 9 and it comes into contact with control lever 9, handle 4 is misaligned with the end of partition 8. When the operator continues to rotate handle 4 and squeezes control lever 9, control lever 9 moves towards transmission rod 10, pressing the end of transmission rod 10. At this time, the other end of transmission rod 10 will lift up and cause partition 8 to emerge from placement groove 7. Due to the limiting effect of partition 8, handle 4 cannot move the end of partition 8, thus preventing handle 4 from rotating and achieving the function of limiting handle 4. Magnetic components 13, which are magnets, are also fixedly connected to the inner walls of both sides of rotating cavity 6. When handle 4 contacts the inner wall of rotating cavity 6, the magnetic attraction of magnetic component 13 fixes handle 4, thereby improving the stability of handle 4 at the end of control lever 9 and making handle 4 less likely to separate from ring block 5.

[0026] Reference Figure 1 , Figure 2An inclined end face 12 is provided on the side of the control lever 9 facing the handle 4, with the inclined surface of the inclined end face 12 facing the handle 4. Therefore, when the operator moves the handle 4 toward the control lever 9, the design of the inclined end face 12 can also guide the control lever 9 to move toward the transmission rod 10 when it is squeezed. This allows the operator to squeeze the transmission rod 10 simply by squeezing the handle 4 toward the control lever 9.

[0027] Reference Figure 2 , Figure 3 Multiple rubber blocks 14 are also provided on the valve body 1, and the rubber blocks 14 are fixedly connected to the valve body 1. The balls are arranged in a linear array and all are in contact with the partition 8. When the operator accidentally touches the handle 4, causing the handle 4 to separate from the annular block 5, the partition 8 will slowly slide down due to the friction of the rubber blocks 14. When the partition 8 does not fall completely into the placement groove 7, the partition 8 can still limit the handle 4, preventing the handle 4 from moving, thereby maintaining the ball valve in its current working state.

[0028] Reference Figure 1 , Figure 2 A spring 11 is fixedly connected to the side of the control lever 9 away from the inclined end face 12. One end of the spring 11 is fixedly connected to the control lever 9, and the other end of the spring 11 is fixedly connected to the valve body 1. The spring 11 is misaligned with the transmission rod 10. When the handle 4 is at the end of the control lever 9, the spring 11 is in a compressed state. When the operator wants to turn the handle 4, the operator separates the handle 4 from the annular block 5. At this time, the connecting rod will automatically return to its original position under the elastic force of the spring 11, and the end of the transmission rod 10 near the control lever 9 will no longer be squeezed by the control lever 9. This allows the partition 8 to slowly move into the placement groove 7 under the action of gravity. The operator can also actively apply pressure to the partition 8 to make it fall into the placement groove 7 more quickly, so that the operator can turn the handle 4 more quickly.

[0029] This application discloses the implementation principle of an anti-accidental contact ball valve as follows: When the operator wants to maintain the working state of the ball valve, the operator only needs to move the handle 4 to the side of the annular block so that the handle 4 is magnetically connected to the magnetic component 13. At this time, due to the limiting effect of the partition 8, the handle 4 cannot move normally. When the operator wants to change the working state of the ball valve, the operator only needs to move the handle 4 from the end of the control rod 9, and then wait for the partition 8 to fall completely into the placement groove 7 before the handle 4 can be rotated.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ball valve for preventing accidental contact, comprising a valve body (1) and a valve stem (2), wherein one end of the valve stem (2) is located inside the valve body (1) and is provided with a ball core (3), and the other end of the valve stem (2) extends out of the valve body (1) and is provided with a handle (4), characterized in that: The valve body (1) has an annular block (5) at one end near the handle (4). The annular block (5) has a rotating cavity (6) for the handle (4) to rotate. The valve body (1) also has a placement groove (7) inside, which communicates with the rotating cavity (6). A partition (8) is slidably connected inside the placement groove (7). Control rods (9) are slidably connected on both sides of the rotating cavity (6). The control rods (9) are located on both sides of the placement groove (7). The valve body (1) also has a transmission rod (10) inside, with the center of the transmission rod (10) connected to the valve body (1). Rotary connection, the partition (8) and the control rod (9) are respectively located at the two ends of the driving rod; a spring (11) is fixedly connected to the end of the control rod (9), one end of the spring (11) is fixedly connected to the control rod (9), and the other end of the spring (11) is fixedly connected to the valve body (1); the end of the control rod (9) away from the spring (11) is provided with an inclined end face (12), and the inclined surface of the inclined end face (12) faces the handle (4); the handle (4) is an iron part, and magnetic parts (13) are fixedly connected to the cavity walls on both sides of the rotating cavity (6).

2. The anti-accidental contact ball valve according to claim 1, characterized in that: The valve body (1) is also provided with a plurality of rubber blocks (14), which are fixedly connected to the valve body (1).

3. The anti-accidental contact ball valve according to claim 2, characterized in that: The rubber blocks (14) are arranged in a linear array and are in contact with the partition (8).

4. The anti-accidental contact ball valve according to claim 1, characterized in that: The transmission rod (10) and the spring (11) are misaligned.

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