Safety valve

Abstract

The utility model relates to the technical field of gas valves, and discloses a safety valve which comprises a first pipeline which is communicated and fixed on two sides of a leakage-proof shell, a push block is arranged in a square frame in a sliding mode, and a second sealing ring is fixedly sleeved on the outer surface of one end of a second pipeline. According to the safety valve, through cooperative arrangement of the leakage-proof shell, the fixing disc, the rotating assembly, a clamping pin and a reset spring, after the rotating assembly rotates, the angle position of the rotating assembly can be fixed by inserting the clamping pin into a round hole of the fixing disc, and the situation that the rotating assembly rotates at will due to external force impact and the like is prevented; through cooperative arrangement of the first pipeline, the second pipeline, the fixing plate, the square frame, the anti-falling bolt, the inclined disc, the abutting disc, the first sealing ring, the second sealing ring and the pushing block, gas loss can be effectively prevented, and meanwhile the efficiency of a gas system can be improved.

Description

Technical Field

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

[0002] Gas refers to energy in the form of liquefied petroleum gas or natural gas, which is commonly used in household and industrial applications. Liquefied petroleum gas is a mixture of propane and butane, which can be converted into liquid form for storage and transportation by compression or cooling. Natural gas, which is mainly composed of methane, is usually transported to homes and businesses through pipelines. In the use of gas, gas safety valves play a vital role. They are designed to automatically cut off the gas supply when abnormal pressure or leakage is detected to prevent the risk of fire or explosion.

[0003] Chinese patent announcement number CN215806563U discloses a gas safety valve, which relates to the field of gas valves, including a connecting pipe, and connecting flanges for connecting gas pipes on both sides are arranged on both sides of the connecting pipe, and a connecting block is fixed on the connecting pipe, and a valve plate that can slide along its length and can close or open the connecting pipe is arranged in the connecting block. The utility model can be installed on the gas pipeline through the connecting flanges on both sides of the connecting pipe, and the connecting pipe can be closed or opened by moving the valve plate along the length of the connecting block. After the valve plate closes the connecting pipe, when the pressure in the connecting pipe is too large, the piston will squeeze the elastic component under the action of the pressure and move the piston to the side away from the connecting pipe, thereby exposing the exhaust pipe, so that the gas can be discharged into the airbag through the exhaust pipe. After the airbag stores the gas, its surface area will be expanded, which can warn people.

[0004] However, the utility model has the following problems when actually used:

[0005] 1. When turning the handle of an ordinary valve to turn the gas on or off, it is inconvenient to fix the position of the handle, which causes the handle to be easily turned by external force, so that the gas is inadvertently turned on or off, which can easily cause serious gas safety accidents;

[0006] 2. Ordinary valves are not very airtight during installation, and gaps are easily left between pipes, which can easily lead to gas leakage, with disastrous consequences. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In order to overcome the above-mentioned defects of the prior art, the utility model provides a safety valve, which solves the problems in the prior art:

[0009] 1. When turning the handle of an ordinary valve to turn the gas on or off, it is inconvenient to fix the position of the handle, which causes the handle to be easily turned by external force, so that the gas is inadvertently turned on or off, which can easily cause serious gas safety accidents;

[0010] 2. Ordinary valves are not very airtight during installation, and gaps are easily left between pipes, which can easily lead to gas leakage, with disastrous consequences.

[0011] (II) Technical solution

[0012] To achieve the above objectives, the utility model is implemented through the following technical solutions: a safety valve comprises a first pipe connected and fixed on both sides of a leak-proof shell, a spherical plug is rotatably arranged inside the leak-proof shell, and a rotating assembly is fixed on the top of the spherical plug, one end of the rotating assembly is slidably penetrated and inserted with a bayonet, and a sliding sleeve on the outer surface of the bayonet is provided with a reset spring, a fixed disk is fixed to the outer wall of the top of the leak-proof shell, a resistance disk is fixed to the inner wall of the first pipe, and a first sealing ring is fixed to one side of the resistance disk, a second pipe is slidably inserted inside the first pipe, and a fixed plate is fixedly sleeved on the outer surface of one end of the second pipe near the first pipe, a square frame is fixed on one side of the fixed plate, and an anti-drop bolt is inserted through the middle thread of the square frame, a push block is slidably arranged inside the frame, a second sealing ring is fixedly sleeved on the outer surface of one end of the second pipe, and an inclined disk is fixedly sleeved on one end of the first pipe near the second pipe.

[0013] Optionally, circular holes are provided on the side of the surface of the fixed disk, and there are multiple groups of circular holes, and the multiple groups of circular holes are equidistantly distributed on the side of the surface of the fixed disk in a circular array.

[0014] Optionally, the bottom end of the pin is set as a small cylinder, and the small cylinder is adapted to the circular hole on the side of the fixed disk surface, and the small cylinder is slidably inserted into the circular hole on the side of the fixed disk surface, and the top end of the pin is set as a large cylinder, and the large cylinder is slidably inserted into one end of the rotating component.

[0015] Optionally, the middle of the pin is set as a disc, and the diameter of the disc is larger than the diameter of the large cylinder at the top of the pin, one end of the return spring is fixedly connected to one side of the disc, and the other end of the return spring is fixedly connected to one end of the rotating assembly.

[0016] Optionally, the square frames are provided in a plurality of groups, and the plurality of groups of square frames are distributed equidistantly in a circular array on one side of the fixing plate.

[0017] Optionally, one side of the inclined plate away from the second pipe is arranged as an inclined surface, and the surface of the inclined plate is smooth and free of burrs.

[0018] Optionally, one side of the first sealing ring is tightly attached to one end of the second pipe.

[0019] Optionally, one side of the second sealing ring is in close contact with one side of the fixed plate, and the other side of the second sealing ring is in close contact with one side of the swash plate.

[0020] Optionally, one side of the push block is set as a slope away from the first pipe, the sloped side of the push block is adapted to the sloped side of the inclined plate, the surface of the push block is smooth and free of burrs, and one end of the push block is rotatably sleeved on the outer surface of one end of the anti-detachment bolt.

[0021] (III) Beneficial effects

[0022] The utility model provides a safety valve, which has the following beneficial effects:

[0023] 1. The safety valve, through the coordinated arrangement of the leak-proof housing, the fixed disk, the rotating assembly, the bayonet and the reset spring, can fix the angular position of the rotating assembly by inserting the bayonet into the circular hole of the fixed disk after the rotating assembly rotates, thereby preventing the rotating assembly from rotating at will due to external impact, ensuring that the established gas flow rate will not be easily changed, making the gas use safer.

[0024] 2. The safety valve, through the coordinated arrangement of the first pipeline, the second pipeline, the fixing plate, the square frame, the anti-detachment bolts, the inclined plate, the abutment plate, the first sealing ring, the second sealing ring and the push block, can make the first pipeline and the second pipeline tightly connected by twisting the anti-detachment bolts, and fill the gap between the first pipeline and the second pipeline under the deformation action of the first sealing ring and the second sealing ring, which can effectively prevent the loss of gas and ensure the safety of users and the surrounding environment, and also help to improve the efficiency of the gas system and reduce energy waste and cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0026] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0027] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the turntable structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the ball structure of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the silicone sleeve of the utility model.

[0032] In the figure: 1. leak-proof shell; 2. fixed plate; 3. rotating assembly; 31. rotating shaft; 32. turntable; 33. handle; 34. ball; 35. silicone sleeve; 4. bayonet; 5. first pipe; 6. second pipe; 7. fixed plate; 8. frame; 9. anti-slip bolt; 10. inclined plate; 11. spherical plug; 12. return spring; 13. resistance plate; 14. first sealing ring; 15. second sealing ring; 16. push block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in 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.

[0034] See also Figures 1 to 7 The utility model provides a technical solution: a safety valve, comprising a first pipe 5 connected and fixed on both sides of a leakproof shell 1, a spherical plug 11 is rotatably arranged inside the leakproof shell 1, and a rotating assembly 3 is fixed to the top of the spherical plug 11, an inner wall of the first pipe 5 is fixed with a disc 13, and a first sealing ring 14 is fixed to one side of the disc 13, a second pipe 6 is slidably inserted inside the first pipe 5, and a fixing plate 7 is fixedly sleeved on the outer surface of one end of the second pipe 6 near the first pipe 5, one side of the first sealing ring 14 is tightly attached to one end of the second pipe 6, one side of the second sealing ring 15 is tightly attached to one side of the fixing plate 7, and the other side of the second sealing ring 15 is tightly attached to one side of the inclined plate 10;

[0035] The first sealing ring 14 and the second sealing ring 15 provide an important condition for the sealed connection between the first pipeline 5 and the second pipeline 6, ensuring that the gas will not easily leak out from between the first pipeline 5 and the second pipeline 6;

[0036] See also Figures 1 to 3, one end of the rotating component 3 is slidably penetrated and inserted with a bayonet 4, and the outer surface of the bayonet 4 is slidably sleeved with a return spring 12, a fixed disk 2 is fixed to the top outer wall of the leak-proof shell 1, and a circular hole is opened on the surface side of the fixed disk 2, and there are multiple groups of circular holes, and the multiple groups of circular holes are equidistantly distributed on the surface side of the fixed disk 2 in a circular array manner, the bottom end of the bayonet 4 is set as a small cylinder, and the small cylinder is adapted to the circular hole on the surface side of the fixed disk 2, and the small cylinder is slidably inserted in the circular hole on the surface side of the fixed disk 2, the top end of the bayonet 4 is set as a large cylinder, and the large cylinder is slidably inserted in one end of the rotating component 3, the middle of the bayonet 4 is set as a disk, and the diameter of the disk is larger than the diameter of the large cylinder at the top of the bayonet 4, one end of the return spring 12 is fixedly connected to one side of the disk, and the other end of the return spring 12 is fixedly connected to one end of the rotating component 3;

[0037] The arrangement of the fixing plate 2 and the bayonet 4 facilitates fixing the angular position of the rotating assembly 3 after the rotating assembly 3 has completed its rotation, thereby preventing the rotating assembly 3 from being easily rotated by external forces, thereby affecting the gas volume;

[0038] See also Figure 1 to Figure 2 A square frame 8 is fixed to one side of the fixed plate 7, and an anti-slip bolt 9 is inserted through the middle thread of the square frame 8, a push block 16 is slidably arranged inside the square frame 8, a second sealing ring 15 is fixedly sleeved on the outer surface of one end of the second pipe 6, and a slant plate 10 is fixedly sleeved at one end of the first pipe 5 near the second pipe 6. The square frame 8 is provided with multiple groups, and the multiple groups of square frames 8 are equidistantly distributed on one side of the fixed plate 7 in a circular array manner. One side of the slant plate 10 is set as an inclined surface away from the second pipe 6, and the surface of the slant plate 10 is smooth and has no burrs. One side of the push block 16 is set as an inclined surface away from the first pipe 5, and one side of the inclined surface of the push block 16 is adapted to one side of the inclined surface of the slant plate 10. The surface of the push block 16 is smooth and has no burrs, and one end of the push block 16 is rotatably sleeved on the outer surface of one end of the anti-slip bolt 9;

[0039] By providing the swash plate 10 and the push block 16 , when the anti-drop bolt 9 is rotated, the push block 16 pushes the swash plate 10 , so that the distance between the first pipeline 5 and the second pipeline 6 becomes closer and closer.

[0040] Embodiment 1;

[0041] See also Figure 5 The rotating assembly 3 includes a rotating shaft 31, a rotating disk 32 and a handle 33. The bottom end of the rotating shaft 31 is fixedly connected to the top end of the spherical plug 11. The middle outer surface of the rotating shaft 31 passes through the leak-proof housing 1 and is fixedly sleeved with a rotating disk 32. The rotating disk 32 is rotatably inserted into the interior of the fixed disk 2. The top end of the rotating shaft 31 is fixed with a handle 33. Through the arrangement of the rotating shaft 31, the rotating disk 32 and the handle 33, the rotating assembly 3 will not be easily deflected when rotating.

[0042] Embodiment 2:

[0043] See also Figure 6 The rotating assembly 3 includes a rotating shaft 31, a rotating disk 32, a handle 33 and a ball 34. The bottom end of the rotating shaft 31 is fixedly connected to the top end of the spherical plug 11. The middle outer surface of the rotating shaft 31 passes through the leak-proof shell 1 and is fixedly sleeved with a rotating disk 32. The rotating disk 32 is rotatably inserted in the interior of the fixed disk 2. Balls 34 are rollingly arranged on both ends of the rotating disk 32, and there are multiple groups of balls 34. The multiple groups of balls 34 are equidistantly distributed at the two ends of the rotating disk 32 in a circular array. A handle 33 is fixed on the top end of the rotating shaft 31. Through the arrangement of the rotating shaft 31, the rotating disk 32, the handle 33 and the ball 34, the rotating assembly 3 is smoother when rotating and will not be affected by excessive friction.

[0044] Embodiment three;

[0045] See also Figure 7 The rotating component 3 includes a rotating shaft 31, a rotating disk 32, a handle 33, a ball 34 and a silicone sleeve 35. The bottom end of the rotating shaft 31 is fixedly connected to the top of the spherical plug 11. The middle outer surface of the rotating shaft 31 passes through the leak-proof shell 1 and is fixedly sleeved with a rotating disk 32, and the rotating disk 32 is rotatably inserted in the interior of the fixed disk 2. Balls 34 are rollingly arranged on the two end sides of the rotating disk 32, and there are multiple groups of balls 34. The multiple groups of balls 34 are equidistantly distributed at the two end sides of the rotating disk 32 in a circular array. A handle 33 is fixed on the top of the rotating shaft 31, and the outer surface of one end of the handle 33 is wrapped with a silicone sleeve 35. Through the arrangement of the rotating shaft 31, the rotating disk 32, the handle 33, the ball 34 and the silicone sleeve 35, the user will not easily slip and fall off when rotating the rotating component 3.

[0046] In the utility model, the working steps of the device are as follows:

[0047] First, during installation, the first pipe 5 is slidably sleeved on the outer surface of the second pipe 6, and one end of the second pipe 6 is closely attached to one side of the first sealing ring 14, while one side of the second sealing ring 15 is closely attached to one side of the swash plate 10. Then, the anti-dropping bolt 9 is rotated to make the push block 16 slide along the inside of the frame 8 to the swash plate 10. The inclined surface of the push block 16 and the inclined surface of the swash plate 10 rub against each other, so that the swash plate 10 moves toward the direction close to the second pipe 6 under the continuous extrusion of the push block 16. The swash plate 10 drives the first pipe 5 to move synchronously in the same direction, and the first pipe 5 drives the contact plate 13 and the first sealing ring 14 to move. Under the obstruction of the contact plate 13 and the second pipe 6, the first sealing ring 14 is squeezed and deformed, and the second sealing ring 15 is squeezed and deformed by the fixing plate 7 and the swash plate 10, so that the gap between the first pipe 5 and the second pipe 6 is filled, thereby achieving the purpose of sealing and connecting the first pipe 5 and the second pipe 6.

[0048] Then pull up the bayonet 4 to separate the bottom end of the bayonet 4 from the circular hole on the surface of the fixed plate 2, and the return spring 12 is compressed by force, and then the rotating assembly 3 is rotated as required to make the ball plug 11 rotate synchronously, thereby adjusting the gas volume. This is the prior art. Figure 2 A rough schematic diagram can be seen in the figure, which will not be elaborated in detail here. After the rotating component 3 has rotated, the pin 4 is released, and the pin 4 is driven down to its original position under the rebound of the reset spring 12, so that the bottom end of the pin 4 is reinserted into a group of circular holes on the surface of the fixed disk 2 at a suitable position, so that the rotating component 3 will not be easily affected by external forces and rotated. Finally, the gas is passed normally, and the gas flows along the first pipeline 5, the second pipeline 6, the leak-proof shell 1 and the spherical plug 11. This is the existing technology and will not be elaborated.

[0049] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0050] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0051] Finally: The above are only preferred embodiments of the present utility model and are 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 in the protection scope of the present utility model.

Claims

1. A safety valve, comprising a first pipe (5) connected and fixed on both sides of a leakproof housing (1), characterized in that: A spherical plug (11) is rotatably provided inside the leakproof housing (1), and a rotating assembly (3) is fixed to the top of the spherical plug (11), a bayonet (4) is slidably inserted through one end of the rotating assembly (3), and a return spring (12) is slidably sleeved on the outer surface of the bayonet (4), a fixed plate (2) is fixed to the outer wall of the top of the leakproof housing (1), a resisting plate (13) is fixed to the inner wall of the first pipe (5), and a first sealing ring (14) is fixed to one side of the resisting plate (13), and the inner sliding insertion of the first pipe (5) is inserted into the outer surface of the bayonet (4). A second pipe (6) is provided, and a fixing plate (7) is fixedly sleeved on the outer surface of one end of the second pipe (6) near the first pipe (5), a square frame (8) is fixed on one side of the fixing plate (7), and an anti-drop bolt (9) is inserted through the middle thread of the square frame (8), a push block (16) is slidably arranged inside the square frame (8), a second sealing ring (15) is fixedly sleeved on the outer surface of one end of the second pipe (6), and a slanted plate (10) is fixedly sleeved on one end of the first pipe (5) near the second pipe (6).

2. A safety valve according to claim 1, characterized in that: The surface side of the fixing plate (2) is provided with circular holes, and the circular holes are provided in a plurality of groups. The plurality of groups of circular holes are distributed at equal distances in a circular array manner on the surface side of the fixing plate (2).

3. A safety valve according to claim 1, characterized in that: The bottom end of the bayonet (4) is configured as a small cylinder, and the small cylinder is adapted to the circular hole on the side surface of the fixed disk (2), and the small cylinder is slidably inserted into the circular hole on the side surface of the fixed disk (2), and the top end of the bayonet (4) is configured as a large cylinder, and the large cylinder is slidably inserted into one end of the rotating component (3).

4. A safety valve according to claim 1, characterized in that: The middle of the bayonet (4) is arranged as a disc, and the diameter of the disc is larger than the diameter of the large cylinder at the top of the bayonet (4); one end of the return spring (12) is fixedly connected to one side of the disc, and the other end of the return spring (12) is fixedly connected to one end of the rotating assembly (3).

5. A safety valve according to claim 1, characterized in that: The square frames (8) are arranged in a plurality of groups, and the plurality of groups of square frames (8) are distributed at equal distances on one side of the fixing plate (7) in a circular array.

6. A safety valve according to claim 1, characterized in that: One side of the swash plate (10) away from the second pipe (6) is arranged as an inclined surface, and the surface of the swash plate (10) is smooth and free of burrs.

7. A safety valve according to claim 1, characterized in that: One side of the first sealing ring (14) is tightly attached to one end of the second pipe (6).

8. A safety valve according to claim 1, characterized in that: One side of the second sealing ring (15) is in close contact with one side of the fixing plate (7), and the other side of the second sealing ring (15) is in close contact with one side of the swash plate (10).

9. A safety valve according to claim 1, characterized in that: One side of the push block (16) is arranged as an inclined surface away from the first pipe (5), and the inclined surface of the push block (16) is matched with the inclined surface of the swash plate (10). The surface of the push block (16) is smooth and free of burrs, and one end of the push block (16) is rotatably sleeved on the outer surface of one end of the anti-detachment bolt (9).

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