False closing prevention type vertical pipe ball valve special for fuel gas

Abstract

The utility model discloses an anti-mis-closing type vertical pipe ball valve special for fuel gas, and particularly relates to the technical field of ball valves, which comprises a valve body, the top of the valve body is communicated with a valve seat, the top of the valve seat is communicated with a through pipe, a valve rod is arranged in the through pipe, an operating rod is fixedly arranged at the top end of the valve rod, and a ball body is movably arranged in the valve body. A circulation opening is formed in the outer wall of the ball in a penetrating mode, the bottom end of the valve rod extends into the valve body and is fixedly connected with the ball, a locking structure is arranged on the operating rod and comprises a lead screw, a mounting groove is formed in the bottom of the operating rod, the lead screw is rotationally mounted in the mounting groove, and an adjusting block is fixedly arranged at one end of the lead screw. A threaded block is arranged outside the lead screw. According to the ball valve, the operating rod can be locked and fixed, the phenomenon that the ball valve is closed and fuel gas does not circulate due to the fact that the operating rod rotates when the ball valve is played by a child or touched by a person by mistake is avoided, and the safety and the stability of the ball valve are improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and more specifically, to a gas-specific anti-misoperation riser ball valve. Background Technology

[0002] In gas transmission and usage systems, ball valves, as an important control component, play a crucial role in regulating gas flow and cutting off gas supply. Especially in gas riser systems, the performance and reliability of ball valves are directly related to the safe and stable operation of the entire gas supply network.

[0003] A search revealed that Chinese patent CN217003184U discloses a gas ball valve. This structure improves upon existing technology by adding an isolation plate. The isolation plate moves within the through-channel, enabling emergency closure of the gas ball valve when the adjusting handle cannot drive the stopcock to rotate, thereby enhancing the safety factor of the gas ball valve.

[0004] In practical use, existing ball valves mainly rely on the rotation of the operating rod to open and close the valve. Due to the lack of a locking structure on the operating rod, if children play with it or people accidentally touch it during the gas transmission process, the operating rod can easily be rotated, causing the ball valve to close and resulting in gas obstruction, affecting use and posing a safety hazard. In view of this, this utility model proposes a gas-specific anti-misoperation riser ball valve. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a gas-specific anti-misoperation riser ball valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas-specific anti-misoperation riser ball valve, comprising a valve body, a valve seat connected to the top of the valve body, a through pipe connected to the top of the valve seat, a valve stem disposed inside the through pipe, an operating rod fixedly disposed at the top of the valve stem, a ball movably mounted inside the valve body, and a flow port penetrating through the outer wall of the ball, the bottom end of the valve stem extending into the interior of the valve body and fixedly connected to the ball; both ends of the valve body are connected to connecting pipes, and one end of the connecting pipe is connected to a first connecting flange; a second connecting flange is fixedly installed at the top of the valve seat and the bottom of the through pipe, and the two second connecting flanges are detachably connected by bolts.

[0007] As can be seen, after the ball valve is installed with the gas pipeline, the operating rod can be used to make the valve stem drive the ball to rotate inside the valve body, which can operate the ball valve to open and close.

[0008] To lock the control lever and prevent children from playing with it or people from accidentally touching it, which could cause the valve to close and block gas flow, the control lever is preferably equipped with a locking structure. This locking structure includes a lead screw, a mounting groove at the bottom of the control lever, the lead screw being rotatably mounted inside the mounting groove, and an adjusting block fixedly mounted at one end of the lead screw. A threaded block is mounted on the outside of the lead screw, a linkage plate is mounted at the bottom of the threaded block, and an arc-shaped block is mounted at the bottom of the linkage plate. The threaded block is slidably mounted inside the mounting groove and threadedly connected to the outside of the lead screw. Both ends of the linkage plate are fixedly connected to the threaded block and the arc-shaped block, respectively. A limit ring is installed on the through pipe, with multiple locking holes annularly formed on its outer wall. Two locking pins are fixedly mounted on the inner wall of the arc-shaped block. The limit ring is fixedly mounted at the top of the through pipe, outside the valve stem. The locking pins are adapted to the locking hole structure and are movably inserted into the locking holes.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. The locking structure on the operating lever can effectively prevent children from playing with it or people from accidentally touching it and causing the ball valve to close. When the adjusting block is rotated, the locking pin on the arc block can be inserted into the locking hole of the limit ring, thereby restricting the rotation of the operating lever. After the operator opens the ball valve and adjusts the gas delivery flow, the locking structure can ensure that the ball valve maintains a stable working state, prevent gas supply interruption due to accidental contact, ensure the continuity and stability of gas use, and improve the safety of gas use.

[0011] 2. The valve body is connected to the gas pipe via the connecting pipes at both ends through the first connecting flange. The valve seat and the second connecting flange on the connecting pipe are detachably connected by bolts, which allows the operator to easily and quickly assemble and disassemble the ball valve and facilitate maintenance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the valve stem and ball connection structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the connection structure between the threaded block and the lead screw of this utility model.

[0015] Figure 4 This is a schematic diagram of the bottom structure of the operating lever of this utility model.

[0016] Figure 5 This is a schematic diagram of the surface structure of the limiting ring of this utility model.

[0017] The attached figures are labeled as follows: 1. Valve body; 2. Valve seat; 3. Through pipe; 4. Valve stem; 5. Operating lever; 6. Ball; 7. Flow port; 8. Screw; 9. Mounting groove; 10. Adjusting block; 11. Threaded block; 12. Linkage plate; 13. Arc block; 14. Limit ring; 15. Locking hole; 16. Locking pin; 17. Connecting pipe; 18. First connecting flange; 19. Second connecting flange. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] As attached Figure 1-5 The gas-specific anti-misoperation riser ball valve shown includes a valve body 1, a valve seat 2 connected to the top of the valve body 1, a through pipe 3 connected to the top of the valve seat 2, a valve stem 4 installed inside the through pipe 3, an operating lever 5 fixedly installed at the top of the valve stem 4, a ball 6 movably installed inside the valve body 1, and a flow port 7 penetrating through the outer wall of the ball 6, and the bottom end of the valve stem 4 extending into the interior of the valve body 1 and fixedly connected to the ball 6.

[0020] Both ends of the valve body 1 are connected to connecting pipes 17, and one end of the connecting pipe 17 is connected to a first connecting flange 18.

[0021] The top of the valve seat 2 and the bottom of the through pipe 3 are both fixedly installed with second connecting flanges 19, and the two second connecting flanges 19 are detachably connected by bolts.

[0022] Specifically, in this structure, the connecting pipes 17 at both ends of the valve body 1 can be connected to the gas pipe through the first connecting flange 18, so that the gas can be shut off or opened through the inside of the valve body 1 when it is transported through the gas pipe. The valve seat 2 and the second connecting flange 19 on the through pipe 3 are detachably connected by bolts, which makes it convenient for operators to disassemble or maintain them.

[0023] When the ball valve is used to shut off the gas supply, the operating lever 5 is rotated, causing the valve stem 4 to drive the ball 6 to rotate inside the valve body 1. When the flow port 7 of the ball 6 rotates to the inner wall of the valve body 1, the inlet and outlet of the valve body 1 are blocked, and the gas supply cannot flow and is in a shut-off state. Similarly, when the valve stem 4 is rotated again, the flow port 7 of the ball 6 corresponds to the inlet and outlet of the valve ball, and the gas supply can then flow.

[0024] In a specific embodiment, as shown in the appendix Figure 1 ,2 As shown in Figures 3, 4, and 5, the operating lever 5 is equipped with a locking structure, which includes a lead screw 8. The bottom of the operating lever 5 is provided with an installation groove 9. The lead screw 8 is rotatably installed inside the installation groove 9, and an adjusting block 10 is fixedly installed at one end of the lead screw 8. A threaded block 11 is provided on the outside of the lead screw 8. A linkage plate 12 is provided at the bottom of the threaded block 11, and an arc-shaped block 13 is provided at the bottom of the linkage plate 12. The threaded block 11 is slidably installed inside the installation groove 9 and is threadedly connected to the outside of the lead screw 8. The two ends of the linkage plate 12 are fixedly connected to the threaded block 11 and the arc-shaped block 13, respectively.

[0025] A limiting ring 14 is installed on the through pipe 3. The outer wall of the limiting ring 14 is provided with multiple locking holes 15 in an annular shape. Two locking pins 16 are fixedly installed on the inner wall of the arc-shaped block 13. The limiting ring 14 is fixedly installed at the top of the through pipe 3 and located outside the valve stem 4. The locking pins 16 are structurally compatible with the locking holes 15 and are movably inserted into the locking holes 15.

[0026] Specifically, in this structure, in order to prevent children from playing or people from accidentally touching the operating lever 5 and causing the ball 6 to close and the gas flow to be blocked, after the operator opens the ball valve and controls the gas supply flow, the screw 8 rotates inside the mounting groove 9 by rotating the adjusting block 10, and the threaded block 11 drives the arc block 13 to move closer to one side of the limiting ring 14 through the linkage plate 12.

[0027] When the arc-shaped block 13 is attached to the outer wall of the limiting ring 14, the locking pin 16 is inserted into the inside of the locking hole 15. Since the limiting ring 14 and the through pipe 3 are fixed to each other, the locking pin 16 will restrict the rotation of the operating rod 5 after it is inserted into the locking hole 15 opened by the limiting ring 14. Therefore, even if the operating rod 5 is accidentally touched, it will not cause the ball valve to close accidentally.

[0028] Similarly, when operating the ball valve, the arc-shaped block 13 is moved to one side of the limiting ring 14 so that the locking pin 16 disengages from the inside of the locking hole 15.

[0029] Working principle of this utility model:

[0030] This application provides a gas-specific anti-misoperation riser ball valve. In specific use, the connecting pipes 17 at both ends of the valve body 1 are first connected to the gas pipe through the first connecting flange 18, so that the gas passes through the inside of the valve body 1 when it is transported through the gas pipe. By rotating the operating rod 5, the valve rod 4 drives the ball 6 to rotate inside the valve body 1, which can operate the opening and closing of the ball valve.

[0031] When it is necessary to lock the operating lever 5, the operator rotates the adjusting block 10, causing the lead screw 8 to rotate inside the mounting groove 9, and causing the threaded block 11 to drive the arc block 13 to move closer to one side of the limiting ring 14 via the linkage plate 12. After the arc block 13 is attached to the outer wall of the limiting ring 14, the locking pin 16 is inserted into the inside of the locking hole 15, which will restrict the rotation of the operating lever 5. Thus, even if the operating lever 5 is accidentally touched, it will not cause the ball valve to close accidentally.

[0032] Similarly, when the ball valve needs to be operated, the arc-shaped block 13 is moved to one side of the limit ring 14 so that the locking pin 16 disengages from the inside of the locking hole 15.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas special anti-misoperation type standpipe ball valve comprising a valve body (1), characterized in that: The top of the valve body (1) is communicated with a valve seat (2), the top of the valve seat (2) is communicated with a through pipe (3), the inside of the through pipe (3) is provided with a valve rod (4), the top end of the valve rod (4) is fixedly provided with an operating rod (5), the inside of the valve body (1) is movably installed with a ball (6), and the outer wall of the ball (6) is provided with a flow-through opening (7), the bottom end of the valve rod (4) extends to the inside of the valve body (1) and is fixedly connected with the ball (6), and the operating rod (5) is provided with a locking structure. The locking structure comprises a lead screw (8), the bottom of the operating rod (5) is provided with a mounting groove (9), the lead screw (8) is rotatably installed in the inside of the mounting groove (9), one end of the lead screw (8) is fixedly provided with an adjusting block (10), the outside of the lead screw (8) is provided with a threaded block (11), the bottom of the threaded block (11) is provided with a linkage plate (12), and the bottom of the linkage plate (12) is provided with an arc-shaped block (13). A limiting ring (14) is installed on the through pipe (3), a plurality of locking holes (15) are annularly formed in the outer wall of the limiting ring (14), and the inner wall of the arc-shaped block (13) is fixedly installed with two locking pins (16).

2. A gas-only deadleg anti-shut-in ball valve according to claim 1, characterized in that: Both ends of the valve body (1) are communicated with a connecting pipe (17), and one end of the connecting pipe (17) is connected with a first connecting flange (18).

3. The gas-only deadleg anti-shutoff ball valve of claim 1, wherein: The top of the valve seat (2) and the bottom of the through pipe (3) are fixedly installed with a second connecting flange (19), and the two second connecting flanges (19) are detachably connected through bolts.

4. The gas-only deadleg anti-shutoff ball valve of claim 1, wherein: The threaded block (11) is slidably installed in the inside of the mounting groove (9) and is screw-connected on the outside of the lead screw (8), and the two ends of the linkage plate (12) are fixedly connected with the threaded block (11) and the arc-shaped block (13) respectively.

5. The gas-only deadleg ball valve of claim 1, wherein: The limiting ring (14) is fixedly installed on the top end of the through pipe (3) and is located on the outside of the valve rod (4), the locking pin (16) is matched with the locking hole (15) in structure, and the locking pin (16) is movably inserted into the locking hole (15).

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