A gas valve capable of gas leak detection

Abstract

The utility model relates to valve technical field, concretely relates to a gas valve that can detect gas leakage, including valve body, be equipped with detection board in the valve body, fixedly connected with the pivot on the detection board, and the pivot is connected with the valve body rotation, install the positioning mechanism for positioning pivot position on the valve body, the through -hole is seted up on the detection board, is equipped with the support axle in the through -hole, the external rotation of support axle is equipped with the fixed frame, and the fixed frame is connected with the detection board fixedly, a plurality of leaves in the through -hole are fixedly connected on the support axle, install the detection structure for detecting whether the support axle rotates on the detection board, can discover gas leakage in time, avoid gas long -term leakage, reduce the loss of property.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a gas valve capable of detecting gas leaks. Background Technology

[0002] Gas valves are an important component of gas pipelines. Failure of valves in critical parts can lead to difficulties in production operations, increase the probability of accidents, and pose potential safety hazards to production operations. The most common failure mode of valves is leakage.

[0003] In the prior art, Chinese patent CN220930310U discloses a gas valve that is easy to disassemble and install, making it easy to remove the gas valve from the side of the pipeline. However, it is worth considering that when the gas valve fails, gas leakage cannot be detected in time, nor can an alarm be set in time to remind personnel to replace it. This can easily lead to prolonged gas leakage, resulting in more serious property damage. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a gas valve capable of detecting gas leaks, so as to solve the problem of the inability to detect gas leaks in a timely manner.

[0005] To achieve the above objectives, this utility model provides a gas valve capable of detecting gas leaks, comprising a valve body, a detection plate inside the valve body, a rotating shaft fixedly connected to the detection plate, and the rotating shaft being rotatably connected to the valve body, a positioning mechanism for positioning the rotating shaft on the valve body, a through hole on the detection plate, a support shaft inside the through hole, a fixed frame rotatably sleeved on the outside of the support shaft, and the fixed frame being fixedly connected to the detection plate, a plurality of fan blades located inside the through hole being fixedly connected to the support shaft, and a detection structure for detecting whether the support shaft is rotating is installed on the detection plate.

[0006] Preferably, the detection structure includes a lifting frame disposed above a support shaft, a plurality of protrusions adapted to the lifting frame are fixedly connected to the support shaft, a first support part is slidably sleeved on the outside of the lifting frame, and the first support part is fixedly connected to the detection plate, a support plate located above the first support part is fixedly connected to the lifting frame, and the support plate is in contact with the first support part, a second support part is fixedly connected to the detection plate, and a contact switch located above the lifting frame is fixedly connected to the bottom of the second support part.

[0007] Preferably, the lifting frame is externally fixed with a support sleeve, and the bottom of the first support and the top of the support sleeve are connected by several compression springs.

[0008] Preferably, an alarm light is fixedly connected to the outer wall of the valve body, and the contact switch and the alarm light are electrically connected. A sealing ring is fixedly sleeved on the outside of the detection plate, and the sealing ring abuts against the inner wall of the valve body.

[0009] Preferably, the positioning mechanism includes a support plate fixedly installed on the top of the rotating shaft, and the support plate is located outside the valve body. A third support part is fixedly connected to the outer wall of the valve body. A plug plate passes through the third support part. A reset part adapted to the plug plate is installed on the third support part. Two slots adapted to the plug plate are opened on the support plate.

[0010] Preferably, the reset component includes a side plate fixedly mounted on the insert plate, and the side plate and the third support are connected by a tension spring.

[0011] The beneficial effects of this utility model are as follows: When the valve body is in the closed state, the operator drives the rotating shaft and the detection plate to rotate so that the detection plate is parallel to the valve plate on the valve body. The position of the rotating shaft and the detection plate is positioned by the positioning mechanism. When the valve body fails and causes gas leakage, the gas is discharged through the through hole on the detection plate. The airflow drives the fan blade and the support shaft to rotate. The detection structure detects the rotation of the support shaft, which can detect the gas leakage in time, avoid prolonged gas leakage, and reduce property damage. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the detection plate in an embodiment of the present invention;

[0015] Figure 3 This utility model Figure 2 A magnified structural diagram of region A in the middle.

[0016] The diagram is marked as follows:

[0017] 1. Valve body; 2. Detection plate; 3. Rotating shaft; 4. Support plate; 5. Through hole; 6. Support shaft; 7. Fixing frame; 8. Fan blade; 9. Lifting frame; 10. Protrusion; 11. First support part; 12. Support plate; 13. Support sleeve; 14. Compression spring; 15. Second support part; 16. Contact switch; 17. Alarm light; 18. Third support part; 19. Insert plate; 20. Slot; 21. Side plate; 22. Tension spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] This specification provides one or more embodiments of a gas valve capable of detecting gas leaks, such as... Figure 1 , Figure 2 and Figure 3As shown, the device includes a valve body 1, a detection plate 2 inside the valve body 1, a rotating shaft 3 fixedly connected to the detection plate 2, and the rotating shaft 3 and the valve body 1 rotatably connected. A positioning mechanism for positioning the rotating shaft 3 is installed on the valve body 1. A through hole 5 is opened on the detection plate 2, and a support shaft 6 is installed inside the through hole 5. A fixing frame 7 is rotatably fitted around the support shaft 6, and the fixing frame 7 is fixedly connected to the detection plate 2. Several fan blades 8 located inside the through hole 5 are fixedly connected to the support shaft 6. A detection structure for detecting whether the support shaft 6 rotates is installed on the detection plate 2. When the valve body 1 is in the closed state, the operator drives the rotating shaft 3 and the detection plate 2 to rotate, so that the detection plate 2 is parallel to the valve plate on the valve body 1. The positioning mechanism positions the rotating shaft 3 and the detection plate 2. When the valve body 1 fails, causing a gas leak, the gas is discharged through the through hole 5 on the detection plate 2, and the airflow drives the fan blades 8 and the support shaft 6 to rotate. The detection structure detects the rotation of the support shaft 6, thus detecting the gas leak in a timely manner, preventing prolonged gas leakage, and reducing property damage.

[0021] In embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3As shown, the detection structure includes a lifting frame 9 positioned above a support shaft 6. Several protrusions 10 adapted to the lifting frame 9 are fixedly connected to the support shaft 6. A first support portion 11 is slidably sleeved on the outside of the lifting frame 9, and the first support portion 11 is fixedly connected to the detection plate 2. A support plate 12 located above the first support portion 11 is fixedly connected to the lifting frame 9, and the support plate 12 contacts the first support portion 11. A second support portion 15 is fixedly connected to the detection plate 2. A contact switch 16 located above the lifting frame 9 is fixedly connected to the bottom of the second support portion 15. A support sleeve 13 is fixedly sleeved on the outside of the lifting frame 9, and the bottom of the first support portion 11 and the top of the support sleeve 13 are connected by several compression springs 14. An alarm light 17 is fixedly connected to the outer wall of the valve body 1, and the contact switch 16 and the alarm light 17 are electrically connected. A sealing ring is fixedly sleeved on the outside of the detection plate 2, and the sealing ring and the valve body 1... The inner walls of the fan blades 8 and 6 are in contact. When the fan blades 8 and 6 rotate, the 6 drives the cam 10 to rotate. The cam 10 contacts the bottom of the lifting frame 9 and pushes the lifting frame 9 and the support plate 12 upward. The support sleeve 13 moves upward relative to the first support part 11. The compression spring 14 is in a compressed state, and the top of the lifting frame 9 contacts the contact switch 16. The contact switch 16 controls the alarm light 17 to turn on and issue an alarm. When the cam 10 no longer contacts the lifting frame 9, the compression spring 14 drives the support sleeve 13 and the lifting frame 9 to move down to the initial position. The support plate 12 contacts the first support part 11 again. The first support part 11 supports the support plate 12 and the lifting frame 9. Through the design of the sealing ring, when the detection plate 2 and the valve plate on the valve body 1 are in a parallel state, gas is prevented from escaping from the connection between the detection plate 2 and the valve body 1, ensuring that gas is discharged through the through hole 5.

[0022] In embodiments of this utility model, such as Figure 1 and Figure 2As shown, the positioning mechanism includes a support plate 4 fixedly installed at the top of the rotating shaft 3, and the support plate 4 is located outside the valve body 1. A third support part 18 is fixedly connected to the outer wall of the valve body 1. A slide plate 19 passes through the third support part 18. A reset member adapted to the slide plate 19 is installed on the third support part 18. Two slots 20 adapted to the slide plate 19 are opened on the support plate 4. The reset member includes a side plate 21 fixedly installed on the slide plate 19, and the side plate 21 and the third support part 18 are connected by a tension spring 22. It is necessary to rotate the rotating shaft 3 and the detection plate 2 to make the detection plate 2 parallel to the valve plate on the valve body 1. In the current state, the operator drives the side plate 21 and the insert plate 19 to move, so that the insert plate 19 disengages from the corresponding slot 20. The tension spring 22 is in the tension state, releasing the restriction on the position of the support plate 4 and the rotating shaft 3. The operator drives the support plate 4 and the rotating shaft 3 to rotate, so that the detection plate 2 is parallel to the valve plate on the valve body 1. At this time, the other slot 20 rotates to one side of the insert plate 19. The operator releases the side plate 21, and the tension spring 22 drives the side plate 21 and the insert plate 19 to move, so that the end of the insert plate 19 is inserted into the corresponding slot 20, thereby fixing the support plate 4, the rotating shaft 3 and the detection plate 2 relative to the valve body 1.

[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0024] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas valve capable of detecting gas leaks, comprising a valve body (1), characterized in that, The valve body (1) is provided with a detection plate (2), and a rotating shaft (3) is fixedly connected to the detection plate (2). The rotating shaft (3) and the valve body (1) are rotatably connected. The valve body (1) is equipped with a positioning mechanism for positioning the rotating shaft (3). The detection plate (2) is provided with a through hole (5). A support shaft (6) is provided in the through hole (5). A fixing frame (7) is rotatably sleeved on the outside of the support shaft (6). The fixing frame (7) and the detection plate (2) are fixedly connected. Several fan blades (8) located in the through hole (5) are fixedly connected to the support shaft (6). The detection plate (2) is equipped with a detection structure for detecting whether the support shaft (6) rotates.

2. The gas valve capable of detecting gas leaks according to claim 1, characterized in that, The detection structure includes a lifting frame (9) disposed above the support shaft (6). Several protrusions (10) adapted to the lifting frame (9) are fixedly connected to the support shaft (6). A first support part (11) is slidably sleeved on the outside of the lifting frame (9). The first support part (11) and the detection plate (2) are fixedly connected. A support plate (12) located above the first support part (11) is fixedly connected to the lifting frame (9). The support plate (12) and the first support part (11) are in contact. A second support part (15) is fixedly connected to the detection plate (2). A contact switch (16) located above the lifting frame (9) is fixedly connected to the bottom of the second support part (15).

3. The gas valve capable of detecting gas leaks according to claim 2, characterized in that, The lifting frame (9) is externally fixed with a support sleeve (13), and the bottom of the first support part (11) and the top of the support sleeve (13) are connected by several compression springs (14).

4. The gas valve capable of detecting gas leaks according to claim 2, characterized in that, An alarm light (17) is fixedly connected to the outer wall of the valve body (1), and the contact switch (16) and the alarm light (17) are electrically connected. A sealing ring is fixedly fitted on the outside of the detection plate (2), and the sealing ring abuts against the inner wall of the valve body (1).

5. The gas valve capable of detecting gas leaks according to claim 1, characterized in that, The positioning mechanism includes a support plate (4) fixedly installed on the top of the rotating shaft (3), and the support plate (4) is located outside the valve body (1). A third support part (18) is fixedly connected to the outer wall of the valve body (1). A plug plate (19) passes through the third support part (18). A reset part adapted to the plug plate (19) is installed on the third support part (18). Two slots (20) adapted to the plug plate (19) are opened on the support plate (4).

6. The gas valve capable of detecting gas leaks according to claim 5, characterized in that, The reset component includes a side plate (21) fixedly mounted on the insert plate (19), and the side plate (21) and the third support (18) are connected by a tension spring (22).

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