Valve capable of releasing pressure

Abstract

The utility model belongs to the technical field of valves, and discloses a pressure relief type valve which comprises a pipe body, an auxiliary mechanism is arranged in the pipe body, and the auxiliary mechanism extends to the outer side of the pipe body; the auxiliary mechanism comprises a fixing frame, the fixing frame is fixedly embedded in the pipe body, two through grooves are formed in the fixing frame, during use, when hydraulic pressure in one side of the pipeline is increased, liquid extrudes an air bag, at the moment, air in the air bag extrudes a movable plate, the movable plate drives a toothed plate to move through a rod body while moving, and the toothed plate is driven to move through the rod body; the two rotating plates rotate, liquid quickly passes through along with the increase of a gap between the two rotating plates and the fixing frame, meanwhile, the spring is in a compressed state, when a hydraulic value is reduced, the spring is not stressed to rebound, and the two rotating plates rotate by extruding the toothed plate. The purposes of automatic pressure relief when the water flow pressure is increased and automatic pressure relief closing after the water flow pressure is reduced are achieved, the trouble of manual pressure relief of people is avoided, and use is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, more particularly to a pressure relief valve. BACKGROUND

[0002] The valve is a device for controlling the flow of liquid on the liquid storage or discharge equipment, and the pressure relief valve is a valve type that can release the pressure of the liquid. The pressure of the liquid in some liquid storage or discharge equipment often fluctuates, which may cause the equipment to rupture and the liquid to leak. Therefore, the pressure relief valve is usually used to release the pressure of the liquid.

[0003] The existing pressure relief valve lacks an automatic pressure relief structure during use, so manual pressure relief is often required when the hydraulic pressure is high, which is very troublesome to use. When the operation is not timely, the great impact force will damage the valve body, thereby causing unnecessary losses.

[0004] In order to solve the above problems, the present application provides a pressure relief valve. Content of the utility model

[0005] The pressure relief valve provided by the present application adopts the following technical scheme:

[0006] A pressure relief valve, comprising a pipe body, an auxiliary mechanism is arranged inside the pipe body, and the auxiliary mechanism extends to the outside of the pipe body.

[0007] The auxiliary mechanism comprises a fixed frame, the fixed frame is fixedly embedded in the inside of the pipe body, two through grooves are formed in the inside of the fixed frame, a rolling shaft is movably embedded in the inside of the fixed frame, rotating plates are fixedly connected to the top end and the bottom end of the rolling shaft, the two rotating plates are respectively embedded in the two through grooves, a frame body is fixedly embedded in the inside of the fixed frame, a gear is fixedly embedded on the outside of the rolling shaft, a toothed plate is engaged with the front side of the gear, a guide rod is embedded in one side of the inside of the toothed plate, a connecting plate is fixedly connected to one end of the guide rod, a spring is fixedly connected between the connecting plate and the toothed plate, the spring is sleeved on the outside of the guide rod, a pressure sensor is arranged on one side of the connecting plate, a connecting frame is fixedly connected to one side of the frame body, a rod body is fixedly connected to the other side of the toothed plate, a moving plate is fixedly embedded in the inside of the connecting frame and extends from one end of the rod body, an air bag is fixedly connected to one side of the connecting frame, and a connecting member is arranged on the outside of the air bag.

[0008] Further, the two through grooves are symmetrically arranged about the center line of the fixed frame, and the two rotating plates are respectively matched with the two through grooves.

[0009] Further, a sealing ring is fixedly sleeved on the outside of each of the two rotating plates, and the rolling shaft is movably connected to the frame body through a bearing.

[0010] Through the technical scheme, the two sealing rings are arranged to enhance the sealing between the two rotating plate fixing frames.

[0011] Further, the connecting component comprises a sliding block fixedly connected to the front side of the toothed plate, and the front side of the sliding block extends to the inside of the front side of the frame.

[0012] Through the technical scheme, the sliding block is arranged to limit the toothed plate, so that the toothed plate can be more stable and firm when moving left and right.

[0013] Further, the pipe body is provided with a display at the top, and a liquid inlet flange plate and a liquid outlet flange plate are respectively arranged at the two sides of the pipe body.

[0014] Through the technical scheme, the display is arranged to facilitate the observation of the pressure.

[0015] Further, the pressure sensor is provided with a sealing plate on one side, and a sealing sleeve is fixedly sleeved on the outer side of the sealing plate, and the inner side of the sealing sleeve is tightly attached to the frame.

[0016] Through the technical scheme, the sealing sleeve is arranged to ensure the sealing between the sealing plate and the frame, so as to prevent liquid from entering the inside of the frame.

[0017] Further, the sealing plate is provided with a spring telescopic rod on one side, and the spring telescopic rod is fixedly connected to the fixed frame through a fixed plate.

[0018] Through the technical scheme, the fixed plate is arranged to fix and support the spring telescopic rod.

[0019] In summary, the present application has the following beneficial technical effects:

[0020] When the hydraulic pressure in the inside of the pipe increases, the liquid will press the air bag, and the gas in the air bag will press the moving plate, and the moving plate will move the toothed plate through the rod body, so that the two rotating plates rotate, and the gap between the two rotating plates and the fixed frame increases, so that the liquid quickly passes through, and the spring is in a compressed state. When the hydraulic pressure decreases, the spring will rebound without force, and the two rotating plates will rotate through the compressed toothed plate. Through the above structure, the automatic pressure relief when the water flow pressure increases and the automatic closing and pressure relief when the water flow pressure decreases are realized, and the trouble of manual pressure relief is avoided, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the overall structure of the present application;

[0022] Figure 2It is a partial sectional perspective view of the application;

[0023] Figure 3 It is a sectional perspective view of the frame and connecting frame of the application;

[0024] Figure 4 It is a perspective view of one end of the moving plate of the application.

[0025] Explanation of reference numerals in the drawing:

[0026] 1, pipe body; 2, fixed frame; 3, roller; 4, rotating plate; 5, frame; 6, gear; 7, toothed plate; 8, spring; 9, pressure sensor; 10, connecting frame; 11, rod body; 12, moving plate; 13, air bag; 14, sealing ring; 15, sliding block; 16, display; 17, liquid inlet flange; 18, liquid outlet flange; 19, sealing plate; 20, sealing sleeve; 21, spring telescopic rod; 22, fixed plate; 23, guide rod; 24, connecting plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, and not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0028] In the description of the application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0030] Embodiment:

[0031] The application discloses a pressure relief type valve, please refer toFigure 1 、 Figure 2 、 Figure 3 and Figure 4 , including the pipe body 1, the pipe body 1 is internally provided with an auxiliary mechanism, the auxiliary mechanism extends to the outside of the pipe body 1;

[0032] The auxiliary mechanism includes a fixed frame 2, the fixed frame 2 is fixedly embedded in the pipe body 1, two through grooves are formed in the fixed frame 2, a roller shaft 3 is movably embedded in the fixed frame 2, rotating plates 4 are fixedly connected to the top end and the bottom end of the roller shaft 3, the two rotating plates 4 are respectively embedded in the two through grooves, a frame 5 is fixedly embedded in the fixed frame 2, a gear 6 is fixedly embedded on the outer side of the roller shaft 3, a toothed plate 7 is engaged with the front side of the gear 6, a guide rod 23 is embedded in one side of the toothed plate 7, a connecting plate 24 is fixedly connected to one end of the guide rod 23, a spring 8 is fixedly connected between the connecting plate 24 and the toothed plate 7, the spring 8 is sleeved on the outer side of the guide rod 23, a pressure sensor 9 is arranged on one side of the connecting plate 24, a connecting frame 10 is fixedly connected to one side of the frame 5, a rod body 11 is fixedly connected to the other side of the toothed plate 7, one end of the rod body 11 extends into the connecting frame 10 and a moving plate 12 is fixedly embedded therein, and an air bag 13 is fixedly connected to one side of the connecting frame 10;

[0033] Please refer to Figure 2 、 Figure 3 and Figure 4 , the two through grooves are symmetrically arranged with the center line of the fixed frame 2 as the axis, the two rotating plates 4 are respectively matched with the two through grooves, sealing rings 14 are fixedly sleeved on the outer sides of the two rotating plates 4, and the roller shaft 3 is movably connected with the frame 5 through a bearing, and the sealing property between the two rotating plates 4 and the fixed frame 2 can be enhanced by arranging the two sealing rings 14;

[0034] Please refer to Figure 1 、 Figure 3 and Figure 4 , the air bag 13 is provided with a connecting part, the connecting part includes a sliding block 15, the sliding block 15 is fixedly connected to the front side of the toothed plate 7, the sliding block 15 extends to the front side of the frame 5, a display 16 is installed on the top of the pipe body 1, liquid inlet flanges 17 and liquid outlet flanges 18 are respectively installed on the two sides of the pipe body 1, the sliding block 15 can limit the toothed plate 7, so that the toothed plate 7 can move more stably and firmly, and the display 16 can facilitate the observation of the pressure;

[0035] Please refer to Figure 2 、 Figure 3 and Figure 4The pressure sensor 9 side is provided with a sealing plate 19, the sealing plate 19 outer side is fixedly sleeved with a sealing sleeve 20, the sealing sleeve 20 inner side is tightly attached to the frame body 5, and the sealing plate 19 side is provided with a spring telescopic rod 21, and the spring telescopic rod 21 and the fixed frame 2 are fixedly connected through a fixed plate 22. The sealing sleeve 20 can ensure the sealing property between the sealing plate 19 and the frame body 5, so that the liquid cannot enter the frame body 5, and the fixed plate 22 can fix and support the spring telescopic rod 21.

[0036] The implementation principle of the embodiment is that: in use, the pipe body 1 is first installed on the pipeline needing pressure relief through the liquid inlet flange plate 17, when the liquid pressure in one side of the pipeline increases, the liquid will extrude the air bag 13, at this time, the gas in the air bag 13 extrudes the moving plate 12, so that the moving plate 12 moves to the other side of the pipeline, and the moving plate 12 moves the gear plate 7 through the rod body 11, because the gear plate 7 is engaged with the gear 6, so the gear 6 drives the two rotating plates 4 to rotate through the roller shaft 3, with the movement of the gear plate 7, the angle of the two rotating plates 4 will be larger, and the gap between the two rotating plates 4 and the fixed frame 2 will also be larger, so that the liquid can quickly pass through, and the spring 8 will be stressed and be in a compressed state, because the guide rod 23 is arranged, so the connecting plate 24 can be completely attached to the pressure sensor 9, and the current pressure value can be better measured, and the display 16 is used for display, when the two rotating plates 4 rotate by 90 degrees, the spring 8 is in a limit compression state, when the liquid pressure value decreases, the spring 8 will be stress-free and rebound, the gear plate 7 is extruded, so that the two rotating plates 4 are rotated, through the above structure, the automatic pressure relief when the water flow pressure increases and the automatic closing of the pressure relief when the water flow pressure decreases are realized, and the trouble of manual pressure relief is avoided, and the use is convenient.

[0037] In the later period, the spring telescopic rod 21 can be in a compressed state by means of external tools, then the sealing plate 19 is taken out from the pipe body 1, and the spring 8 in the frame body 5 is replaced, so that the spring 8 cannot be normally used due to damage of the spring elasticity.

[0038] The above are preferred embodiments of the application, and the protection scope of the application is not limited thereto, therefore: equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A pressure relief valve comprising a body (1), characterized in that: The pipe body (1) is internally provided with an auxiliary mechanism extending to the outside of the pipe body (1); The auxiliary mechanism comprises a fixed frame (2) fixedly embedded in the pipe body (1), two through grooves are formed in the fixed frame (2), a roller shaft (3) is movably embedded in the fixed frame (2), rotating plates (4) are fixedly connected to the top and bottom ends of the roller shaft (3), the two rotating plates (4) are respectively embedded in the two through grooves, a frame body (5) is fixedly embedded in the fixed frame (2), a gear (6) is fixedly embedded on the outer side of the roller shaft (3), a toothed plate (7) is engaged with the front side of the gear (6), a guide rod (23) is embedded in one side of the toothed plate (7), a connecting plate (24) is fixedly connected to one end of the guide rod (23), a spring (8) is fixedly connected between the connecting plate (24) and the toothed plate (7), the spring (8) is sleeved on the outer side of the guide rod (23), a pressure sensor (9) is arranged on one side of the connecting plate (24), a connecting frame (10) is fixedly connected to one side of the frame body (5), a rod body (11) is fixedly connected to the other side of the toothed plate (7), one end of the rod body (11) extends into the connecting frame (10) and is fixedly embedded with a moving plate (12), an air bag (13) is fixedly connected to one side of the connecting frame (10), and a connecting member is arranged on the outer side of the air bag (13).

2. A pressure relief valve according to claim 1, wherein: The two through grooves are symmetrically arranged about the center line of the fixed frame (2), and the two rotating plates (4) are matched with the two through grooves respectively.

3. A pressure relief valve according to claim 1, wherein: Sealing rings (14) are fixedly sleeved on the outer sides of the two rotating plates (4), and the roller shaft (3) is movably connected with the frame body (5) through a bearing.

4. A pressure relief valve according to claim 1, wherein: The connecting member comprises a sliding block (15) fixedly connected to the front side of the toothed plate (7), and the sliding block (15) extends to the inside of the front side of the frame body (5).

5. A pressure relief valve according to claim 1, wherein: A display (16) is mounted on the top of the pipe body (1), and liquid inlet flanges (17) and liquid outlet flanges (18) are respectively mounted on the two sides of the pipe body (1).

6. A pressure relief valve according to claim 1, wherein: A sealing plate (19) is mounted on one side of the pressure sensor (9), a sealing sleeve (20) is fixedly sleeved on the outer side of the sealing plate (19), and the inner side of the sealing sleeve (20) is tightly attached to the frame body (5).

7. A pressure relief valve according to claim 6, wherein: A spring telescopic rod (21) is arranged on one side of the sealing plate (19), and the spring telescopic rod (21) and the fixed frame (2) are fixedly connected through a fixed plate (22).

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