Gas ball valve used in pipeline

Abstract

The utility model provides a gas ball valve used in a pipeline. The gas ball valve comprises a fixed part and an on-off part, two axial sides of the fixing part can be respectively connected with the pipeline; an air duct is formed in the fixing part so as to communicate the pipelines on the two sides; an on-off cavity for the valve ball to move is formed in the air duct; the on-off part is arranged on one side of the fixing part in the axial direction, so that the on-off part can be inserted into one of the pipelines; and the output end of the on-off part penetrates through the ventilation channel into the on-off cavity and is connected with the valve ball, and the on-off part can drive the valve ball to conduct opening and closing movement relative to the ventilation channel so as to control on-off of the pipelines on the two sides. The on-off part can be inserted into one of the pipelines after being installed, the original installation mode that the on-off part is arranged between the pipelines on the two sides is replaced, the occupied space during installation is reduced, meanwhile, the valve ball is limited in the on-off cavity in the air duct, the influence of air circulation on the valve ball can be reduced, the sealing performance is guaranteed, and meanwhile the service life of the valve ball is prolonged. And the occupied space during installation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas ball valves, and particularly relates to a gas ball valve used inside a pipeline. Background Art

[0002] The gas ball valve is an opening and closing component used to control the on and off of the gas pipeline and is one of the necessary components in the ventilation pipeline system.

[0003] The existing gas ball valve is usually achieved by setting another pipeline between the two gas pipelines to be connected, and setting a rotatable valve ball in the pipeline, so as to drive the air passage in the valve ball to rotate to achieve the purpose of controlling the on-off of the gas pipelines on both sides. Because the valve ball is set in another pipeline between the gas pipelines on both sides, in actual application, it is necessary to reserve enough installation space in advance between the gas pipelines on both sides. If the overall installation space is small and the distribution of gas pipelines is complicated, such as in measurement systems, submarines, and ships, it is difficult to reserve enough installation space in advance, making the installation of the gas ball valve more difficult. If the installation is to be completed, it is necessary to replace a new gas ball valve and gas pipeline or re-layout the gas pipeline, resulting in low installation efficiency. However, the pipeline used to set the valve ball can also limit the valve ball. If the pipeline is removed, the valve ball will be easily affected by gas circulation, thereby affecting the sealing.

[0004] Therefore, it is difficult for the existing gas ball valve to reduce the occupied space during installation while ensuring the sealing performance. Utility Model Content

[0005] In view of the above problems, the utility model proposes a gas ball valve for use in a pipeline, comprising:

[0006] A fixing part, two sides of which in the axial direction can be connected to the pipeline respectively;

[0007] An air passage is provided in the fixing portion to connect the pipes on both sides;

[0008] The air passage is provided with an on-off cavity for the valve ball to move;

[0009] A switch portion, the switch portion being arranged on one side of the fixing portion in the axial direction so that the switch portion can be inserted into one of the pipes;

[0010] The output end of the on-off part is arranged through the air passage to the on-off cavity and is connected to the valve ball. The on-off part can drive the valve ball to open and close relative to the air passage to control the on-off of the pipelines on both sides.

[0011] In some specific embodiments, the fixing portion includes:

[0012] A disc body, two axial sides of which can be connected to the pipeline respectively;

[0013] The disk body is provided with a first through hole;

[0014] a cover body, the cover body being arranged on the first through hole so that the cover body can be inserted into one of the pipes;

[0015] The inner wall of the cover body and the side wall of the disk body together form the on-off cavity;

[0016] The cover body is provided with a second through hole, and the second through hole, the on-off cavity and the first through hole are sequentially connected to form the air passage.

[0017] In some specific embodiments, the second through hole, the on-off cavity and the first through hole are coaxially arranged;

[0018] The inner diameter of the on-off cavity is larger than the inner diameter of the first through hole or the second through hole.

[0019] In some specific embodiments, a first abutting groove capable of abutting against a valve ball is provided at one end of the first through hole close to the on-off cavity.

[0020] In some specific embodiments, an abutment seat is provided on one side of the disk body close to the on-off cavity;

[0021] A third through hole is formed on the abutting seat, and the first through hole is connected with the on-off cavity through the third through hole;

[0022] The first abutting groove is formed on the abutting seat.

[0023] In some specific embodiments, a second abutting groove capable of abutting against a valve ball is provided at one end of the second through hole close to the on-off cavity.

[0024] In some specific embodiments, the cover is detachably connected to the tray;

[0025] In some specific embodiments, a ring body is disposed around one side of the cover body close to the disk body, and the cover body is detachably connected to the disk body through the ring body.

[0026] In some specific embodiments, the switching unit includes:

[0027] A limiting mechanism, the limiting mechanism is arranged on a side of the disk body away from the cover body, and a moving track is arranged on the limiting mechanism along the axial direction of the first through hole;

[0028] A moving mechanism is movably arranged on the moving track, and the moving mechanism is penetrated from the first through hole to the on-off cavity and is connected to the valve ball.

[0029] In some specific embodiments, a distance measuring sensor component is provided on the limiting mechanism, and the distance measuring sensor component can measure the moving distance of the valve ball driven by the moving mechanism.

[0030] The gas ball valve used in the pipeline of the utility model can be connected to the pipelines respectively through the two sides of the fixing part in the axial direction, so that the on-off part arranged on one side of the fixing part in the axial direction can be inserted into one of the pipelines after installation, replacing the original installation method of being arranged between the pipelines on both sides, greatly reducing the space occupied during installation. At the same time, by limiting the valve ball to be movable in the on-off cavity in the airway, the influence of gas circulation on the valve ball can be reduced, thereby ensuring the sealing. While ensuring the sealing, the space occupied during installation is reduced.

[0031] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of a gas ball valve used inside a pipeline in an embodiment of the utility model is shown;

[0034] Figure 2 The figure shows a schematic diagram of the installation of a gas ball valve used inside a pipeline in an embodiment of the utility model.

[0035] In the figure, 100, fixing part; 110, disk body; 111, first through hole; 120, cover body; 121, second through hole; 122, second abutting groove; 130, abutting seat; 131, third through hole; 132, first abutting groove; 140, ring body; 200, on-off part; 210, limiting mechanism; 211, guide rod; 212, fixing plate; 2121, distance measuring sensor assembly; 213, moving plate; 2131, connecting rod; 220, moving mechanism; 221, rotating motor; 222, screw; 300, valve ball; 400, pipeline. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Reference Figure 1 The utility model provides a gas ball valve for the interior of a pipeline, comprising: a fixing part 100 and a disconnecting part 200. The two sides of the fixing part 100 in the axial direction can be connected to the pipeline 400 respectively, so that the pipelines 400 on both sides can be separated by the fixing part 100. An air passage for gas to pass through is provided in the fixing part 100, and the pipelines 400 on both sides of the separation can be connected through the air passage. At the same time, an on-off cavity for the valve ball 300 to move is provided inside the air passage. The on-off part 200 is arranged on one side of the axial direction of the fixing part 100, so that the on-off part 200 can be inserted into one of the pipelines 400 after the fixing part 100 is connected to the pipelines 400 on both sides. In addition, the output end of the on-off part 200 is arranged in the on-off cavity through the air passage to the on-off cavity and connected to the valve ball 300, and the on-off part 200 can drive the valve ball 300 to open and close relative to the air passage in the on-off cavity, thereby controlling the on-off between the pipelines 400 on both sides.

[0038] Specifically, after the two sides of the fixing part 100 are connected to the pipes 400 respectively, the on-off part 200 located on one side of the fixing part 100 will be inserted into one of the pipes 400. At this time, if the on-off part 200 drives the valve ball 300 to move in the on-off cavity toward the end of the on-off cavity, the valve ball 300 can abut against the inner wall of the airway, and the airway can be blocked, so that the pipes 400 on both sides are isolated. If the on-off part 200 drives the valve ball 300 to move in the on-off cavity toward the middle of the on-off cavity, the valve ball 300 can be spaced from the inner wall of the airway, and the pipes 400 on both sides are connected, so that the gas in the pipes 400 can continue to flow. It replaces the original installation method between the pipes 400 on both sides, which greatly reduces the space occupied during installation. At the same time, by limiting the movement of the valve ball 300 in the on-off cavity in the air passage, the on-off cavity can reduce the impact of gas circulation on the valve ball 300, so that the valve ball 300 will not shake at will due to the influence of airflow, thereby ensuring sealing. While ensuring sealing, the space occupied during installation is reduced, and even if the overall installation space is small and the distribution of the gas pipeline 400 is complex, sufficient installation space can be reserved in advance during installation.

[0039] In some specific embodiments of the present invention, refer to Figure 1 The fixing part 100 includes: a disc body 110 and a cover body 120. The two axial sides of the disc body 110 can be connected to the pipe 400 respectively, and the two axial sides of the disc body 110 can be respectively covered on the openings of the pipes 400 on both sides and connected to the openings of the pipes 400 on both sides, so as to separate the pipes 400 on both sides. Figure 2 The disk body 110 is provided with a first through hole 111, through which the pipes 400 on both sides can be connected. The cover body 120 is covered on the first through hole 111, so that the cover body 120 can be inserted into one of the pipes 400 after installation. The inner wall of the cover body 120 and the side wall of the disk body 110 are combined to form a through-break cavity. The cover body 120 is provided with a second through hole 121, wherein the second through hole 121, the through-break cavity and the first through hole 111 are connected in sequence to form an air passage, so that the pipes 400 on both sides can be connected by connecting the second through hole 121, the through-break cavity and the first through hole 111 in sequence, so that the gas can flow in the pipe 400. The valve ball 300 is arranged in the through-break cavity, and the flow rate of the gas and the direct impact of the gas can be limited through the first through hole 111 and the second through hole 121, so that the valve ball 300 can be prevented from being affected by the gas flow in the pipe 400.

[0040] Specifically, if the on-off portion 200 drives the valve ball 300 to move in the on-off cavity toward the end direction close to the first through hole 111, so that the valve ball 300 can abut against the end of the first through hole 111, the airway can be blocked, thereby isolating the pipes 400 on both sides. If the on-off portion 200 drives the valve ball 300 to move in the on-off cavity toward the middle direction close to the on-off cavity, so that there is a gap between the valve ball 300 and the end of the first through hole 111, the pipes 400 on both sides will be connected, so that the gas in the pipes 400 can continue to flow. Alternatively, if the on-off portion 200 drives the valve ball 300 to move in the on-off cavity toward the end direction close to the first through hole 111, so that the valve ball 300 can abut against the end of the first through hole 111, the airway can be blocked, thereby isolating the pipes 400 on both sides. If the on-off portion 200 drives the valve ball 300 to move in the on-off cavity toward the middle of the on-off cavity, so that there is a gap between the valve ball 300 and the end of the second through hole 121, the pipes 400 on both sides will be connected, so that the gas in the pipes 400 can continue to flow.

[0041] It should be noted that the disc body 110 is a disc-shaped structure. Since the thickness of the disc body 110 in the axial direction is relatively small, the occupied space between the pipes 400 on both sides can be reduced.

[0042] In some specific embodiments of the present invention, refer to Figure 1 The second through hole 121, the on-off cavity and the first through hole 111 are coaxially arranged, and the second through hole 121, the on-off cavity and the first through hole 111 are all opened along the axial direction of the disc body 110. The inner diameter of the on-off cavity is larger than the inner diameter of the first through hole 111 or the second through hole 121, so that the valve ball 300 is easy to abut against the end of the first through hole 111 or the end of the second through hole 121.

[0043] Furthermore, the first through hole 111 is opened in the middle of the disk body 110, so in order to cooperate with each other, the on-off part 200 and the cover body 120 need to be arranged in the middle of one side of the disk body 110, so that the installed cover body 120 and the on-off part 200 can be inserted into the pipe 400 without contacting the inner wall of the pipe 400, thereby avoiding the on-off part 200 and the cover body 120 from being hit or bumped.

[0044] In some specific embodiments of the present invention, refer to Figure 2The first through hole 111 is provided with a first abutting groove 132 which can abut against the valve ball 300 at one end close to the on-off cavity. The first abutting groove 132 can abut against the valve ball 300. The first abutting groove 132 and the first through hole 111 are coaxially connected, and the groove wall of the first abutting groove 132 is matched with the outer wall of the valve ball 300. When the outer wall of the valve ball 300 abuts against the groove wall of the first abutting groove 132, the valve ball 300 will block the first through hole 111, thereby isolating the pipelines 400 on both sides. The first abutting groove 132 facilitates fixing the valve ball 300, which can prevent the valve ball 300 from being disconnected from the end of the first through hole 111 and improve the sealing performance of the first through hole 111.

[0045] In some specific embodiments of the present invention, refer to Figure 1 , abutment seat 130 is provided on one side of the disk body 110 close to the on-off cavity. Figure 2 , a third through hole 131 is provided on the abutting seat 130, and the third through hole 131 is coaxially connected with the first through hole 111, so that the first through hole 111 is connected with the on-off cavity through the third through hole 131. Here, the main function of the third through hole 131 is to extend the length of the first through hole 111, which is equivalent to the extension of the first through hole 111. When the valve ball 300 is close to the first through hole 111, the valve ball 300 will abut against the end of the third through hole 131. When the end of the valve ball 300 is blocked, it is equivalent to the first through hole 111 being blocked together, so that the pipelines 400 on both sides are separated. At this time, the gas in the pipeline 400 cannot continue to flow. When the valve ball 300 is away from the first through hole 111, there will be a gap between the valve ball 300 and the end of the third through hole 131, so that the pipelines 400 on both sides are connected. At this time, the gas in the pipeline 400 can continue to flow. At the same time, the first abutting groove 132 is provided on the side of the abutting seat 130 close to the valve ball 300, the first abutting groove 132 is coaxially connected with the third through hole 131, the end of the third through hole 131 is located at the center of the groove bottom of the first abutting groove 132, when the valve ball 300 abuts against the end of the third through hole 131, the outer wall of the valve ball 300 abuts against the groove wall of the first abutting groove 132, thereby calibrating the valve ball 300. Among them, the setting of the abutting seat 130 is to facilitate the processing of the first abutting groove 132 adapted to the valve ball 300, and sufficient space is reserved for the opening of the first abutting groove 132, and the first abutting groove 132 does not need to be directly opened on the disc body 110, thereby avoiding the disc body 110 from having an excessively large axial thickness due to the need to open the first abutting groove 132, and then the axial thickness of the disc body 110 can be limited while the valve ball 300 is calibrated by opening the first abutting groove 132, further reducing the occupied space.

[0046] In some specific embodiments of the present invention, refer to Figure 2The second through hole 121 is provided with a second abutting groove 122 that can abut against the valve ball 300 at one end close to the on-off cavity. The second abutting groove 122 can abut against the valve ball 300. The second abutting groove 122 and the second through hole 121 are coaxially connected. The end of the second through hole 121 is located at the center of the groove bottom of the second abutting groove 122, and the groove wall of the second abutting groove 122 is adapted to the outer wall of the valve ball 300. When the outer wall of the valve ball 300 abuts against the groove wall of the second abutting groove 122, the valve ball 300 will block the second through hole 121, thereby isolating the pipelines 400 on both sides. The second abutting groove 122 facilitates the fixing of the valve ball 300, which can prevent the valve ball 300 from being disconnected from the end of the second through hole 121 and improve the sealing performance of the second through hole 121.

[0047] In some specific embodiments of the present invention, refer to Figure 2 The first abutment groove 132 and the second abutment groove 122 cooperate with each other. Under the action of the forward and backward movement of the valve ball 300, the outer wall of the valve ball 300 can abut against the groove wall of the first abutment groove 132 or the second abutment groove 122 respectively, so that the two sides can be separated by blocking the first through hole 111 or the second through hole 121, which is convenient for controlling the opening and closing of the gas ball valve used inside the pipeline.

[0048] In some specific embodiments of the present invention, refer to Figure 1 The cover 120 is detachably connected to the tray body 110. The opening side of the cover 120 is detachably connected to the side wall of the tray body 110 by bolts, so that it is easy to install and disassemble, and the installation efficiency can be improved.

[0049] In some specific embodiments of the present invention, refer to Figure 1 A ring body 140 is fixedly arranged around one side of the cover body 120 close to the disk body 110, wherein the ring body 140 can be detachably connected to the side wall of the disk body 110 through bolts, so that the cover body 120 can be detachably connected to the disk body 110 through the ring body 140. The ring body 140 can increase the connection contact area between the cover body 120 and the disk body 110, thereby improving the stability of the installation.

[0050] In some specific embodiments of the present invention, refer to Figure 1, the on-off part 200 includes: a limiting mechanism 210 and a moving mechanism 220. The limiting assembly mechanism is arranged on the side of the disk body 110 of the fixed part 100 away from the cover body 120, and a moving track arranged along the axial direction of the first through hole 111 is formed in the limiting mechanism 210. The moving mechanism 220 is movably arranged on the moving track, and the moving mechanism 220 can move along the axial direction of the first through hole 111 on the moving track. In addition, one end of the moving mechanism 220 is penetrated from the first through hole 111 to the on-off cavity and is fixedly connected to the valve ball 300, so that the moving mechanism 220 can drive the valve ball 300 to move along the axial direction of the first through hole 111 on the moving track. In addition, the moving direction of the valve ball 300 can be limited under the action of the limiting track of the limiting mechanism 210.

[0051] Furthermore, the limiting assembly includes: a guide rod 211, a fixed plate 212 and a movable plate 213. There are at least two guide rods 211, and the two guide rods 211 are symmetrically arranged on one side of the axial direction of the disk body 110, and one end of the guide rod 211 is fixedly connected to the disk body 110, and the other end is extended along the axial direction of the first through hole 111, so that the two guide rods 211 can form a movable track. The fixed plate 212 is fixedly arranged at one end of the guide rod 211 away from the disk body 110, and the two guide rods 211 can be connected and fixed by the fixed plate 212, which improves the stability of the movable track and avoids misalignment between the valve ball 300 and the first through hole 111. The movable plate 213 is movably sleeved on the two guide rods 211, so that the movable plate 213 can slide on the movable track. A connecting rod 2131 is provided on one side of the movable plate 213 close to the disc body 110, one end of the connecting rod 2131 is fixedly connected to the movable plate 213, and the other end is penetrated from the first through hole 111 to the on-off cavity along the axial direction of the first through hole 111 and fixedly connected to the valve ball 300. When the movable plate 213 approaches the disc body 110 along the axial direction of the first through hole 111 on the movable track, the valve ball 300 will be driven away from the disc body 110 along the axial direction of the first through hole 111 until it abuts against the end of the second through hole 121. Alternatively, when the movable plate 213 moves away from the first through hole 111 along the axial direction of the first through hole 111 on the movable track, the valve ball 300 will be driven toward the disc body 110 along the axial direction of the first through hole 111 until it abuts against the end of the first through hole 111. The on-off of the pipelines 400 on both sides can be controlled without rotating the valve ball 300, which reduces the space occupied during installation and reduces the probability of wear of the valve ball 300.

[0052] Furthermore, the moving mechanism 220 includes: a rotating motor 221 and a screw 222. The rotating motor 221 is fixedly arranged on a side of the moving plate 213 close to the fixed plate 212. The output end of the rotating motor 221 is fixedly connected to one end of the screw 222, and one end of the screw 222 away from the rotating motor 221 is threadedly penetrated through the fixed plate 212. The output end of the rotating motor 221 can drive the screw 222 to rotate. As the screw 222 rotates, the screw 222 will be driven to continuously move back and forth on the fixed plate 212, thereby driving the rotating motor 221 and the moving plate 213 fixedly connected to the rotating motor 221 to move, thereby driving the valve ball 300 fixedly connected to the moving plate 213 to move.

[0053] In some specific embodiments of the present invention, refer to Figure 2 The limiting mechanism 210 is provided with a distance-measuring sensor component 2121, which can measure the moving distance of the valve ball 300 driven by the moving mechanism 220. The distance-measuring sensor component 2121 is fixedly arranged on the side of the fixed plate 212 close to the moving plate 213, and the distance-measuring end of the distance-measuring sensor component 2121 is arranged directly opposite to the moving plate 213, so that the distance between the fixed plate 212 and the moving plate 213 can be measured by the distance-measuring sensor component 2121, so as to facilitate the acquisition of the position of the valve ball 300, that is, the opening and closing state. Among them, the distance-measuring sensor component 2121 can be a distance-measuring sensor.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas ball valve for use in a pipeline, characterized in that: include: A fixing portion (100), wherein two axial sides of the fixing portion (100) can be respectively connected to the pipeline (400); An air passage is provided in the fixing portion (100) to connect the pipes (400) on both sides; The air passage is provided with an on-off cavity for the valve ball (300) to move; a switching part (200), the switching part (200) being arranged on one side of the fixing part (100) in the axial direction so that the switching part (200) can be inserted into one of the pipes (400); The output end of the on-off portion (200) is arranged through the air passage to the on-off cavity and is connected to the valve ball (300). The on-off portion (200) can drive the valve ball (300) to perform an opening and closing movement relative to the air passage to control the on-off of the pipelines (400) on both sides.

2. The gas ball valve for use in a pipeline according to claim 1, characterized in that: The fixing portion (100) comprises: A disk body (110), wherein two axial sides of the disk body (110) can be respectively connected to the pipeline (400); The disk body (110) is provided with a first through hole (111); a cover body (120), the cover body (120) being covered on the first through hole (111) so that the cover body (120) can be inserted into one of the pipes (400); The inner wall of the cover body (120) and the side wall of the disk body (110) together enclose the on-off cavity; The cover body (120) is provided with a second through hole (121), and the second through hole (121), the on-off cavity and the first through hole (111) are sequentially connected to form the air passage.

3. The gas ball valve for use in a pipeline according to claim 2, characterized in that: The second through hole (121), the on-off cavity and the first through hole (111) are coaxially arranged; The inner diameter of the on-off cavity is greater than the inner diameter of the first through hole (111) or the second through hole (121).

4. The gas ball valve for use in a pipeline according to claim 3, characterized in that: A first abutment groove (132) capable of abutting against a valve ball (300) is provided at one end of the first through hole (111) close to the on-off cavity.

5. The gas ball valve for use in a pipeline according to claim 4, characterized in that: A contact seat (130) is provided on one side of the disk body (110) close to the on-off cavity; The abutment seat (130) is provided with a third through hole (131), and the first through hole (111) is connected to the on-off cavity through the third through hole (131); The first abutment groove (132) is formed on the abutment seat (130).

6. The gas ball valve for use in a pipeline according to claim 3, characterized in that: A second abutting groove (122) capable of abutting against the valve ball (300) is provided at one end of the second through hole (121) close to the on-off cavity.

7. The gas ball valve for use in a pipeline according to claim 3, characterized in that: The cover body (120) is detachably connected to the tray body (110).

8. The gas ball valve for use in a pipeline according to claim 7, characterized in that: A ring body (140) is arranged around one side of the cover body (120) close to the disk body (110), and the cover body (120) is detachably connected to the disk body (110) via the ring body (140).

9. The gas ball valve for use in a pipeline according to claim 2, characterized in that: The switching unit (200) comprises: a limiting mechanism (210), the limiting mechanism (210) being arranged on a side of the disk body (110) away from the cover body (120), and a movable track being arranged on the limiting mechanism (210) along the axial direction of the first through hole (111); A moving mechanism (220), wherein the moving mechanism (220) is movably arranged on the moving track, and the moving mechanism (220) is penetrated through the first through hole (111) to the on-off cavity and is connected to the valve ball (300).

10. The gas ball valve for use in a pipeline according to claim 9, characterized in that: The limiting mechanism (210) is provided with a distance measuring sensor component (2121), and the distance measuring sensor component (2121) is capable of measuring the moving distance of the valve ball (300) driven by the moving mechanism (220).

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