Gas valve with integrated cut-off and pressure regulation

Abstract

The utility model relates to a cut off pressure regulating integrated gas valve, including valve body and valve cover, the both ends of valve body are provided with air inlet pipe and air outlet pipe respectively, the bottom of valve body inner wall is provided with a frame and no. 2 frame one side close to air inlet pipe, the sliding plate is slidably connected on no. 1 frame and no. 2 frame, the one end fixed connection of sliding plate close to air inlet pipe has valve ball, the inner wall rotation of no. 1 frame is connected with the rotating rod, the one end fixed connection of rotating rod in no. 1 frame is driven gear, the one end of rotating rod away from no. 1 frame penetrates no. 1 frame and is fixedly connected with the rotating plate, the beneficial effect is: the utility model discloses a frame, rotating plate, eccentric weight, rotating rod, transmission gear, sliding plate and the setting of its upper tooth groove, through the drive of safety film, connecting rod, bottom plate, can effectively realize the transverse movement of valve ball, make it can effectively completely block the air inlet, further realize the cut off operation of gas, effectively guarantee the automatic pressure regulating function of equipment.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a gas valve that integrates shut-off and pressure regulation. Background Technology

[0002] Traditional gas shut-off valves are mostly manually operated, but they do not have pressure regulating function. This means that when the pressure in the pipeline is high, the shut-off operation will be affected, which may lead to dangerous situations due to untimely operation.

[0003] Referring to the patented gas pressure regulating valve (publication number: CN218267420U), a connecting rod and valve ball are set inside the valve body, along with a support frame and a safety diaphragm. When the internal pressure of the valve body is too high, the safety diaphragm is squeezed upwards. The safety diaphragm drives the pressure rod to move upwards, causing the connecting rod to rotate along the inside of the support frame. This uses the valve ball to block the air inlet, reducing the amount of gas entering and thus reducing and stabilizing the output pressure, achieving automatic regulation of gas pressure. By setting a guide sleeve at the upper end of the end cover and installing an adjusting screw inside the guide sleeve, the adjusting screw can be moved up and down along the inside of the guide sleeve by rotating the cap. With the help of a spring, the position of the safety diaphragm can be adjusted. The safety diaphragm, together with the valve ball, controls the gas pressure, thereby achieving manual regulation of the gas output pressure. However, its lever structure means that the valve ball cannot completely block the air inlet, thus failing to achieve the gas cut-off operation.

[0004] Therefore, a gas valve that integrates shut-off and pressure regulation is proposed to solve the above problems. Utility Model Content

[0005] The technical solution adopted by this utility model to solve the technical problem is: a gas valve with integrated shut-off and pressure regulation, including a valve body and a valve cover. An inlet pipe and an outlet pipe are respectively provided at both ends of the valve body. A first frame and a second frame are provided on the bottom of the inner wall of the valve body near the inlet pipe. A sliding plate is slidably connected to the first frame and the second frame. A valve ball is fixedly connected to the end of the sliding plate near the inlet pipe. A rotating rod is rotatably connected to the inner wall of the first frame. A transmission gear is fixedly connected to one end of the rotating rod inside the first frame. The end of the rotating rod away from the first frame passes through the first frame and is fixedly connected to a rotating plate. Several toothed grooves are opened at the bottom of the sliding plate near the first frame. The transmission gear meshes with the toothed grooves. A safety membrane is provided in the valve body. A connecting rod is provided in the middle of the bottom of the safety membrane. A base plate is fixedly connected to the bottom end of the connecting rod.

[0006] As a preferred embodiment of this utility model, the top of the valve cover is threadedly connected to a screw, the bottom end of the screw is rotatably connected to a fixing plate, the bottom of the fixing plate is fixedly connected to a spring, and the bottom end of the spring is connected to a safety film.

[0007] As a preferred embodiment of this utility model, a weight block is provided at one end of the rotating plate near the bottom plate, and the bottom plate is located below the end of the rotating plate near the weight block.

[0008] As a preferred embodiment of this utility model, the safety film drives the connecting rod and the base plate to rise, the rotating plate rotates upward, the transmission gear rotates with the rotating rod to drive the sliding plate to move towards the air inlet pipe, and the valve ball completely fits the air inlet.

[0009] In a preferred embodiment of this utility model, the safety film drives the connecting rod and the base plate to descend, the base plate moves away from the rotating plate, the rotating plate rotates towards the eccentric block, the transmission gear rotates with the rotating rod to drive the sliding plate to move away from the air intake pipe, and the valve ball releases the blockage of the air intake.

[0010] This utility model has the following advantages: Through the arrangement of a frame, rotating plate, counterweight, rotating rod, transmission gear, sliding plate and its upper tooth groove, and driven by a safety membrane, connecting rod and base plate, this utility model can effectively realize the lateral movement of the valve ball, so that it can effectively and completely block the air inlet, thereby realizing the gas shut-off operation. At the same time, it effectively ensures the automatic pressure regulation function of the equipment, effectively avoiding the situation where the shut-off operation is affected by the high pressure in the pipeline of traditional shut-off equipment, which may easily lead to untimely operation and danger, while the pressure regulation equipment does not have a shut-off function. Attached Figure Description

[0011] Figure 1 This is a cross-sectional structural schematic diagram of a preferred embodiment of the present invention; Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention during cutting. Figure 3 This is a side view sectional view of the No. 1 frame according to a preferred embodiment of the present invention; Figure 4 This is a top view sectional structural diagram of the No. 1 frame of a preferred embodiment of the present invention.

[0012] Explanation of reference numerals in the attached diagram: 1. Valve body; 2. Valve cover; 3. Inlet pipe; 4. Outlet pipe; 5. Safety membrane; 6. Connecting rod; 7. Base plate; 8. Frame 1; 9. Sliding plate; 10. Valve ball; 11. Rotating plate; 12. Rotating rod; 13. Transmission gear; 14. Gear groove; 15. Frame 2; 16. Offset block; 17. Screw; 18. Fixing plate; 19. Spring. Detailed Implementation

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Example Please refer to the following: Figure 1-4 This utility model discloses a gas valve with integrated shut-off and pressure regulation, comprising a valve body 1 and a valve cover 2. The valve body 1 is provided with an inlet pipe 3 and an outlet pipe 4 at both ends. The bottom of the inner wall of the valve body 1 is provided with a first frame 8 and a second frame 15 near the inlet pipe 3. A sliding plate 9 is slidably connected to the first frame 8 and the second frame 15. A valve ball 10 is fixedly connected to the end of the sliding plate 9 near the inlet pipe 3. A rotating rod 12 is rotatably connected to the inner wall of the first frame 8. A transmission gear 13 is fixedly connected to one end of the rotating rod 12 inside the first frame 8. The end of the rotating rod 12 away from the first frame 8 passes through the first frame 8 and is fixedly connected to a rotating plate 11 and a sliding plate 9. Several toothed grooves 14 are provided at the bottom near the first frame 8. The transmission gear 13 is meshed with the toothed grooves 14. A safety membrane 5 is provided inside the valve body 1. A connecting rod 6 is provided at the bottom center of the safety membrane 5. A base plate 7 is fixedly connected to the bottom end of the connecting rod 6. A screw 17 is threadedly connected to the top of the valve cover 2. A fixing plate 18 is rotatably connected to the bottom end of the screw 17. A spring 19 is fixedly connected to the bottom of the fixing plate 18. The bottom end of the spring 19 is connected to the safety membrane 5. A counterweight 16 is provided at the end of the rotating plate 11 near the base plate 7. The base plate 7 is located below the end of the rotating plate 11 near the counterweight 16.

[0016] In this process, the safety membrane 5 drives the connecting rod 6 and the base plate 7 to rise, the rotating plate 11 rotates upward, the transmission gear 13 rotates with the rotating rod 12 to drive the sliding plate 9 to move towards the air intake pipe 3, the valve ball 10 completely fits the air intake port, the safety membrane 5 drives the connecting rod 6 and the base plate 7 to fall, the base plate 7 moves away from the rotating plate 11, the rotating plate 11 rotates towards the counterweight 16, the transmission gear 13 rotates with the rotating rod 12 to drive the sliding plate 9 to move away from the air intake pipe 3, and the valve ball 10 releases the blockage of the air intake port.

[0017] Specifically, when this utility model is in use, when the air pressure is high, the safety membrane 5 rises under pressure, which in turn causes the connecting rod 6 to move and drive the base plate 7 to rise. The rise of the base plate 7 causes the rotating plate 11 to rotate under force. The rotation of the rotating plate 11 drives the rotating rod 12 and the transmission gear 13 fixedly installed on it to rotate, which causes the sliding plate 9 to drive the valve ball 10 closer to the air inlet, thereby reducing the amount of gas and the airflow velocity, and thus reducing the gas pressure. When the pressure decreases, the safety membrane 5 is pushed downward by the spring 19, which drives the connecting rod 6 and the base plate 7 to fall. At this time, the rotating plate 11 is affected by the eccentric block 16 and rotates in the direction of the eccentric block 16, which in turn causes the rotating rod 12 to drive the transmission gear 13 to rotate, which causes the sliding plate 9 to drive the valve ball 10 away from the air inlet to release the blockage and increase the gas pressure.

[0018] By rotating the screw 17, the fixed plate 18 pulls the spring 19 upward, which in turn drives the safety membrane 5 upward. After the above transmission operation, the valve ball 10 completely blocks the gas inlet to achieve the gas shut-off operation. This effectively avoids the situation where the shut-off operation is affected when the pressure in the pipeline is high, which may easily lead to untimely operation and danger, while the pressure regulating equipment does not have a shut-off function.

[0019] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A gas valve integrating shut-off and pressure regulation, comprising a valve body (1) and a valve cover (2), wherein an inlet pipe (3) and an outlet pipe (4) are respectively provided at both ends of the valve body (1), characterized in that, The valve body (1) has a first frame (8) and a second frame (15) on the bottom of the inner wall near the air inlet pipe (3). A sliding plate (9) is slidably connected to the first frame (8) and the second frame (15). A valve ball (10) is fixedly connected to the end of the sliding plate (9) near the air inlet pipe (3). A rotating rod (12) is rotatably connected to the inner wall of the first frame (8). A transmission gear (13) is fixedly connected to one end of the rotating rod (12) inside the first frame (8). The end of the rotating rod (12) away from the first frame (8) passes through the first frame (8) and is fixedly connected to a rotating plate (11). Several tooth grooves (14) are opened at the bottom of the sliding plate (9) near the first frame (8). The transmission gear (13) meshes with the tooth grooves (14). A safety membrane (5) is provided inside the valve body (1). A connecting rod (6) is provided in the middle of the bottom of the safety membrane (5). A base plate (7) is fixedly connected to the bottom end of the connecting rod (6).

2. A gas valve integrating shut-off and pressure regulation as described in claim 1, characterized in that, The valve cover (2) is threaded with a screw (17) at the top, and a fixing plate (18) is rotatably connected to the bottom of the screw (17). A spring (19) is fixedly connected to the bottom of the fixing plate (18), and the bottom of the spring (19) is connected to the safety film (5).

3. A gas valve integrating shut-off and pressure regulation as described in claim 1, characterized in that, The rotating plate (11) is provided with a weight block (16) at one end near the bottom plate (7), and the bottom plate (7) is located below the end of the rotating plate (11) near the weight block (16).

4. A gas valve integrating shut-off and pressure regulation as described in claim 1, characterized in that, The safety film (5) drives the connecting rod (6) and the base plate (7) to rise, the rotating plate (11) rotates upward, the transmission gear (13) rotates with the rotating rod (12) to drive the sliding plate (9) to move towards the air inlet pipe (3), and the valve ball (10) completely fits the air inlet.

5. A gas valve with integrated shut-off and pressure regulation as described in claim 1, characterized in that, The safety film (5) drives the connecting rod (6) and the base plate (7) to descend. The base plate (7) moves away from the rotating plate (11). The rotating plate (11) rotates towards the eccentric block (16). The transmission gear (13) rotates with the rotating rod (12) to drive the sliding plate (9) to move away from the air inlet pipe (3). The valve ball (10) releases the blockage of the air inlet.

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