Gas pipeline safety ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a gas pipeline safety ball valve which comprises a pipeline, a ball body is installed on the inner wall of the pipeline, a connecting rod is fixedly connected to the top end of the ball body, an inserting rod is installed at the top end of the connecting rod, and a first limiting ring is installed at the position, below the inserting rod, of the top end of the pipeline. According to the gas pipeline safety ball valve, through the arrangement of the pipeline, the ball body, the connecting rod, the inserting rod, a first limiting ring and a first spring, when the gas pipeline safety ball valve is used, the connecting rod is held by hand and drives the ball body to rotate, and when the interior of the pipeline needs to be sealed, the connecting rod is rotated to one side of the ball body, the inserting rod is held by hand and pulled upwards, and the inserting rod is moved to the top end of the first limiting ring, the inserting rod is manually loosened; the first spring can push the inserting rod to fix the inserting rod in the first limiting ring, compared with the prior art, during closing, the working steps are added, self-locking is formed, the safety of the ball valve is improved, and therefore the effects that the valve is prevented from being opened due to accidental collision, and the safety of the device is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a safety ball valve for a gas pipeline. Background Art

[0002] A ball valve has a spherical body with a central hole. It is opened and closed by a ball held between a seat and a valve body. The JIS B0100 valve glossary defines a ball valve as "a general term for valves with a spherical body that rotates around a stem within the body. There are two types of valve bodies: full-spherical and hemispherical."

[0003] However, the existing gas pipeline safety ball valve has the following disadvantages:

[0004] (1) The existing gas pipeline safety ball valve has a weak fixing function. When in use, the existing ball valve has no self-locking function when opening or closing. The sudden closing or opening of the gas pipeline will cause adverse effects and increase the risk of gas transmission;

[0005] (2) The existing gas pipeline safety ball valve has a weak sealing function. When in use, the ball valve of the existing technology may cause wear at the joint due to long-term rotation, resulting in gas leakage. Utility Model Content

[0006] The purpose of the utility model is to provide a gas pipeline safety ball valve to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas pipeline safety ball valve, comprising a pipeline, a sphere installed on the inner wall of the pipeline, the top of the sphere is fixedly connected to a connecting rod, the top of the connecting rod is installed with an insertion rod, the top of the pipeline is located below the insertion rod and is installed with a first limiting ring, the surface of the insertion rod is installed with a first spring, the surface of the connecting rod is installed with a fixing ring, the top of the fixing ring is fixedly connected to a second spring, and the top of the second spring is fixedly connected to a sealing ring.

[0008] Optionally, an annular groove is formed at the bottom end of the connecting rod, and the annular groove is clamped to the top end of the first spring.

[0009] Optionally, a connecting plate is fixedly connected to one side of the pipe, and a second limiting ring is fixedly connected to the top of the connecting plate. The second limiting ring is fixed by the connecting plate. When the ball valve is opened, the rod can be inserted into the second limiting ring and the connecting rod can be fixed, thereby avoiding collision and closing the ball valve.

[0010] Optionally, the first limiting ring is consistent with the width of the insertion rod, and the first limiting ring fits the insertion rod.

[0011] Optionally, a connection groove is provided on the top of the sphere on one side of the insertion rod, and the connection groove is fixedly connected to the fixing ring.

[0012] Optionally, the width of the sphere is consistent with that of the pipe, and the sphere fits closely to the pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The gas pipeline safety ball valve is provided with a pipeline, a ball, a connecting rod, a plug rod, a first limiting ring, and a first spring. When in use, the connecting rod is held and rotated to drive the ball. When the interior of the pipeline needs to be sealed, the connecting rod is turned to the side of the ball, the plug rod is held and pulled upward, and when the plug rod moves to the top of the first limiting ring, the plug rod is manually released. The first spring can push the plug rod to fix it in the first limiting ring. Compared with the existing technology, there are more working steps when closing, forming a self-locking function, and increasing the safety of the ball valve, thereby preventing the valve from opening due to accidental collision and improving the safety of the device. The gas pipeline safety ball valve is provided with a fixing ring, a second spring, and a sealing ring. When in use, the fixing ring is connected to the second spring, and the second spring can push the sealing ring to seal the connection between the connecting rod and the pipeline. Due to the characteristics of the spring, the ball can be pushed to fix inside the pipeline, increasing the tightness of the fit between the ball and the pipeline, thereby achieving the effect of sealing, reducing gas leakage, and increasing the safety of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0016] Figure 2 This is a schematic diagram of the splitting of the plug rod of the present utility model;

[0017] Figure 3 This is an enlarged schematic diagram of the sphere of the present invention;

[0018] Figure 4 This is an enlarged schematic diagram of the details of point A of the present invention.

[0019] In the figure: 1. Pipe; 2. Sphere; 3. Connecting rod; 4. Insert rod; 5. First limiting ring; 6. First spring; 7. Fixing ring; 8. Second spring; 9. Sealing ring; 10. Connecting plate; 11. Second limiting ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 4 As shown, the utility model provides a technical solution: a gas pipeline safety ball valve, including a pipeline 1, a ball 2 is installed on the inner wall of the pipeline 1, the top of the ball 2 is fixedly connected to a connecting rod 3, the top of the connecting rod 3 is installed with a plug rod 4, the top of the pipeline 1 is located below the plug rod 4 and is installed with a first limiting ring 5, the surface of the plug rod 4 is installed with a first spring 6, the surface of the connecting rod 3 is installed with a fixing ring 7, the top of the fixing ring 7 is fixedly connected to a second spring 8, and the top of the second spring 8 is fixedly connected to a sealing ring 9. By holding the connecting rod 3 and driving the ball 2 to rotate, when it is necessary to seal the inside of the pipeline 1, the connecting rod 3 is turned to the side of the ball 2, and the holding plug rod 4 is upward. When the rod 4 is pulled and moved to the top of the first limiting ring 5, the rod 4 is manually released, and the first spring 6 can push the rod 4 to fix it in the first limiting ring 5. Compared with the prior art, there are more working steps when closing, forming a self-locking, which increases the safety of the ball valve, thereby preventing the valve from opening due to accidental collision and improving the safety of the device. The second spring 8 is connected through the fixing ring 7, and the second spring 8 can push the sealing ring 9 to seal the connection between the connecting rod 3 and the pipe 1. Due to the characteristics of the spring, the ball 2 can be pushed to be fixed inside the pipe 1, increasing the tightness of the fit between the ball 2 and the pipe 1, thereby achieving the effect of sealing, reducing gas leakage and increasing the safety of the seal;

[0022] The bottom end of the connecting rod 3 is provided with an annular groove, which is clamped to the top end of the first spring 6;

[0023] A connecting plate 10 is fixedly connected to one side of the pipe 1, and a second limiting ring 11 is fixedly connected to the top of the connecting plate 10. The second limiting ring 11 is fixed by the connecting plate 10. When opening the ball valve, the insertion rod 4 can be inserted into the second limiting ring 11 and the connecting rod 3 can be fixed, thereby avoiding collision and closing the ball valve;

[0024] The first limiting ring 5 is consistent with the width of the insertion rod 4, and the first limiting ring 5 fits the insertion rod 4;

[0025] The top of the sphere 2 is located on one side of the insertion rod 4 and is provided with a connection groove, which is fixedly connected to the fixing ring 7;

[0026] The width of the sphere 2 is consistent with that of the pipe 1, and the sphere 2 fits closely with the pipe 1.

[0027] In the present invention, the working steps of the device are as follows:

[0028] Step 1: By holding the connecting rod 3 and driving the ball 2 to rotate, when the inside of the pipe 1 needs to be sealed, the connecting rod 3 is turned to the side of the ball 2, and the inserted rod 4 is pulled upward. When the inserted rod 4 is moved to the top of the first limiting ring 5, the inserted rod 4 is manually released. The first spring 6 can push the inserted rod 4 to fix it in the first limiting ring 5. Compared with the existing technology, there are more working steps when closing, forming a self-locking function, which increases the safety of the ball valve, thereby preventing the valve from opening due to accidental collision and improving the safety of the device;

[0029] Step 2: Connect the second spring 8 through the fixing ring 7. The second spring 8 can push the sealing ring 9 to seal the connection between the connecting rod 3 and the pipe 1. Due to the characteristics of the spring, the ball 2 can be pushed to be fixed inside the pipe 1, increasing the tightness of the fit between the ball 2 and the pipe 1, thereby achieving the effect of sealing to reduce gas leakage and increase the safety of the seal;

[0030] The third step: fix the second limiting ring 11 through the connecting plate 10. When opening the ball valve, insert the insertion rod 4 into the second limiting ring 11 and fix the connecting rod 3, thereby avoiding collision and closing the ball valve.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline safety ball valve, comprising a pipeline (1), characterized in that: A sphere (2) is installed on the inner wall of the pipe (1), the top of the sphere (2) is fixedly connected to a connecting rod (3), the top of the connecting rod (3) is installed with an insertion rod (4), the top of the pipe (1) is located below the insertion rod (4) and is installed with a first limiting ring (5), the surface of the insertion rod (4) is installed with a first spring (6), the surface of the connecting rod (3) is installed with a fixing ring (7), the top of the fixing ring (7) is fixedly connected to a second spring (8), and the top of the second spring (8) is fixedly connected to a sealing ring (9).

2. A safety ball valve for a gas pipeline (1) according to claim 1, characterized in that: An annular groove is provided at the bottom end of the connecting rod (3), and the annular groove is clamped to the top end of the first spring (6).

3. A safety ball valve for a gas pipeline (1) according to claim 1, characterized in that: A connecting plate (10) is fixedly connected to one side of the pipe (1), and a second limiting ring (11) is fixedly connected to the top end of the connecting plate (10).

4. A safety ball valve for a gas pipeline (1) according to claim 1, characterized in that: The first limiting ring (5) has the same width as the insertion rod (4), and the first limiting ring (5) fits the insertion rod (4).

5. A safety ball valve for a gas pipeline (1) according to claim 1, characterized in that: A connection groove is provided at the top end of the sphere (2) on one side of the insertion rod (4), and the connection groove is fixedly connected to the fixing ring (7).

6. A safety ball valve for a gas pipeline (1) according to claim 1, characterized in that: The width of the sphere (2) is consistent with that of the pipe (1), and the sphere (2) fits the pipe (1).

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