Self-pressure butterfly valve
By designing a self-pressurizing butterfly valve, the problem of insufficient pressure relief under overpressure is solved, achieving safe pressure relief and timely alerts, preventing valve body damage and media leakage, and ensuring safe production.
Patent Information
- Application Number
- CN202423174826.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing butterfly valves lack effective pressure relief devices under overpressure conditions, leading to abnormally high pressure in the pipeline system, which may cause pipeline damage and media leakage, posing a risk of environmental pollution.
A self-pressurized butterfly valve was designed, comprising a pressure relief chamber, piston, spring, baffle, and whistle. When the pressure inside the valve body is too high, the medium pushes the piston and baffle, and the medium is discharged through the pressure relief port. At the same time, the whistle sounds an alarm, realizing automatic pressure relief and reminder.
It effectively prevents valve body rupture, releases pressure in a timely manner, and alerts operators via whistle, ensuring safety and preventing media leakage and environmental pollution.
Smart Images
Figure CN223814363U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to valve technical field, in particular to a self -pressure butterfly valve. BACKGROUND
[0002] The butterfly valve is also called flap valve, and it is a simple structure regulating valve, and can be used for on-off control of low-pressure pipeline medium, and the butterfly valve refers to a disc as a closing part (valve disc or butterfly plate), which rotates around a valve shaft to achieve opening and closing.
[0003] When the pipeline system installed with the butterfly valve faces overpressure condition, if the effective pressure relief valve device is lacked or the pressure relief valve fails to play its due role, the pressure in the pipeline system will be abnormally increased, and then the pipeline assembly can be damaged. More seriously, overpressure can also cause the medium in the pipeline to be discharged to the external environment out of control, thereby causing pollution and potential harm to the environment. SUMMARY
[0004] The utility model discloses a self -pressure butterfly valve to solve the problems mentioned in the above background.
[0005] The utility model discloses a self -pressure butterfly valve, including the front side fixed connection of butterfly valve body's pressure relief storehouse, the bottom fixed connection of pressure relief storehouse has pressure relief pipe, the front section fixed connection of pressure relief pipe in the rear side of butterfly valve body and penetrates to the inner chamber, the middle part fixed connection of pressure relief storehouse inner wall has the baffle, the middle part of baffle has seted up first pressure relief opening, the front and rear sides of pressure relief storehouse top all have the movable sleeve of activity pole, the lower end surface of two activity poles is commonly connected with the piston, the piston movable sleeve is in first pressure relief opening, the surface of activity pole is equipped with spring, one end of spring is connected with the top surface of pressure relief storehouse inner wall, the other end of spring is connected with the top surface of piston, the top of the front and rear sides of pressure relief storehouse all middle part has seted up second pressure relief opening.
[0006] In an embodiment, the upper end surfaces of the two activity poles are commonly fixedly connected with a connecting block, the front and rear sides of the bottom surface of the connecting block are fixedly connected with baffles, and the opposite surfaces of the two baffles are respectively attached to the top of the front and rear sides of the pressure relief storehouse.
[0007] In an embodiment, the middle parts of the front and rear sides of the pressure relief storehouse are fixedly connected with brackets, the top surfaces of the two brackets are fixedly connected with first connecting sleeves, the top parts of the two first connecting sleeves are fixedly connected with second connecting sleeves, the top parts of the second connecting sleeves are fixedly connected with whistles, and the air inlet ends of the whistles penetrate into the upper ends of the inner cavities of the second connecting sleeves.
[0008] In one embodiment, the bottom surface of the inner wall of the first connecting sleeve is connected with a connecting shaft, the lower end of the surface of the connecting shaft is fixedly sleeved with a first spiral blade, and the upper end of the connecting shaft penetrates into the inner cavity of the second connecting sleeve, and the upper end surface of the connecting shaft is fixedly connected with a second spiral blade.
[0009] In one embodiment, the front and rear sides of the second connecting sleeve are both provided with an air inlet opening, and the air inlet opening is located on the lower side of the second spiral blade.
[0010] In one embodiment, the end surface of the side of the first connecting sleeve close to the pressure relief bin is attached to the side surface of the baffle, and the end of the inner wall of the first connecting sleeve away from the pressure relief bin is fixedly connected with a filter screen.
[0011] The beneficial effects of the utility model are:
[0012] Through the cooperation between the components, when the pressure in the butterfly valve body is too large, the medium in the butterfly valve body will push the piston and the baffle upwards, so that the medium passes through the first pressure relief opening and is discharged from the second pressure relief opening, thereby relieving the pressure in the butterfly valve body, avoiding the explosion of the butterfly valve body due to the excessive pressure in the butterfly valve body, and when the medium is discharged from the second pressure relief opening, the whistle can emit a sound, thereby reminding the personnel and enabling the personnel to know that the butterfly valve is automatically relieving pressure in time. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the front view of the utility model;
[0014] Figure 2 It is the side view of the utility model;
[0015] Figure 3 It is the side view of the utility model;
[0016] Figure 4 It is Figure 3 It is the structure enlarged view of A in the middle.
[0017] In the drawings, 1, butterfly valve body; 2, pressure relief bin; 3, pressure relief pipe; 4, partition; 5, first pressure relief opening; 6, movable rod; 7, piston; 8, spring; 9, second pressure relief opening; 10, connecting block; 11, baffle; 12, support; 13, first connecting sleeve; 14, second connecting sleeve; 15, whistle; 16, connecting shaft; 17, first spiral blade; 18, second spiral blade; 19, air inlet opening; 20, filter screen. DETAILED DESCRIPTION
[0018] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The technical scheme of the utility model will be further described below with reference to the drawings of the embodiments of the utility model. The utility model is not limited to the following specific embodiments.
[0019] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the utility model, it should be understood that if the terms "upper", "lower", "front", "rear", "left", "right", "top" and "bottom" indicate the orientation or position relationship shown in the drawings, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0020] In one embodiment, as shown in Figures 1-4 A self-pressure butterfly valve, comprising a front side of a butterfly valve body 1 fixedly connected with a pressure relief bin 2, the bottom of the pressure relief bin 2 is fixedly connected with a pressure relief pipe 3, the front section of the pressure relief pipe 3 is fixedly connected to the rear side of the butterfly valve body 1 and penetrates into the inner cavity, the middle part of the inner wall of the pressure relief bin 2 is fixedly connected with a partition plate 4, the middle part of the partition plate 4 is provided with a first pressure relief opening 5, the front and rear sides of the top of the pressure relief bin 2 are movably sleeved with a movable rod 6, the lower end surfaces of the two movable rods 6 are fixedly connected with a piston 7, the piston 7 is movably sleeved in the first pressure relief opening 5, the surface of the movable rod 6 is sleeved with a spring 8, one end of the spring 8 is fixedly connected with the top surface of the inner wall of the pressure relief bin 2, the other end of the spring 8 is fixedly connected with the top surface of the piston 7, and the top of the front and rear sides of the pressure relief bin 2 is provided with a second pressure relief opening 9.
[0021] In order to block the second pressure relief opening 9, so as to prevent foreign matters from falling into the pressure relief bin 2 when there is no pressure relief, the upper end surfaces of the two movable rods 6 are fixedly connected with a connecting block 10, the front and rear sides of the bottom surface of the connecting block 10 are fixedly connected with a baffle 11, and the opposite surfaces of the two baffles 11 are respectively attached to the top of the front and rear sides of the pressure relief bin 2.
[0022] In order to be able to remind personnel when pressure relief, the middle parts of the front and rear sides of the pressure relief bin 2 are fixedly connected with a support 12, the top surfaces of the two supports 12 are fixedly connected with a first connecting sleeve 13, the top parts of the two first connecting sleeves 13 are fixedly connected with a second connecting sleeve 14, the top part of the second connecting sleeve 14 is fixedly connected with a whistle 15, and the air inlet end of the whistle 15 penetrates into the upper end of the inner cavity of the second connecting sleeve 14.
[0023] In order to make the medium flow into the first connecting sleeve 13, the whistle 15 can make a sound, the bottom surface of the inner wall of the first connecting sleeve 13 is connected with a connecting shaft 16, the lower end of the surface of the connecting shaft 16 is fixedly sleeved with a first spiral blade 17, the upper end of the connecting shaft 16 penetrates into the inner cavity of the second connecting sleeve 14, and the upper end surface of the connecting shaft 16 is fixedly connected with a second spiral blade 18.
[0024] In order to make the outside air enter into the second connecting sleeve 14, the front and rear sides of the second connecting sleeve 14 are both provided with an air inlet opening 19, and the air inlet opening 19 is located on the lower side of the second spiral blade 18.
[0025] In order to prevent impurities in the external environment from falling into the first connecting sleeve 13 without pressure relief, the end surface of the side of the first connecting sleeve 13 close to the pressure relief chamber 2 is attached to the side surface of the baffle 11, and the inner wall of the first connecting sleeve 13 is fixedly connected with a filter screen 20 away from the one end of the pressure relief chamber 2.
[0026] Working principle: when the pressure in the butterfly valve body 1 is too large, the medium in the butterfly valve body 1 will push the piston 7 upward, push the piston 7 out of the first pressure relief opening 5, make the medium pass through the first pressure relief opening 5, and the piston 7 will drive the movable rod 6 to rise when moving upward, the movable rod 6 drives the connecting block 10 to rise, the connecting block 10 drives the baffle 11 to rise, the second pressure relief opening 9 is exposed, the medium in the pressure relief chamber 2 is discharged from the second pressure relief opening 9, thereby relieving the pressure in the butterfly valve body 1, avoiding the explosion of the butterfly valve body 1 due to the excessive pressure in the butterfly valve body 1, and when the medium is discharged from the second pressure relief opening 9, most of the medium will enter the first connecting sleeve 13, the medium will impact the first spiral blade 17 when flowing in the first connecting sleeve 13, the first spiral blade 17 will rotate, the first spiral blade 17 will drive the connecting shaft 16 to rotate, the connecting shaft 16 will drive the second spiral blade 18 to rotate, the second spiral blade 18 will drive the air to blow upward, the air will flow upward into the whistle 15, the whistle 15 will make a sound, thereby reminding the personnel, and the personnel can know that the butterfly valve is automatically relieving pressure in time.
[0027] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.
[0028] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A self-pressuring butterfly valve, characterized by, The front side of the butterfly valve body is fixedly connected with a pressure relief bin, the bottom of the pressure relief bin is fixedly connected with a pressure relief pipe, the front section of the pressure relief pipe is fixedly connected to the rear side of the butterfly valve body and penetrates into the inner cavity, the middle part of the inner wall of the pressure relief bin is fixedly connected with a partition plate, the middle part of the partition plate is provided with a first pressure relief opening, the front and rear sides of the top of the pressure relief bin are movably sleeved with movable rods, the lower end faces of the two movable rods are fixedly connected with a piston, the piston is movably sleeved in the first pressure relief opening, the surface of the movable rod is sleeved with a spring, one end of the spring is fixedly connected with the top surface of the inner wall of the pressure relief bin, the other end of the spring is fixedly connected with the top surface of the piston, the top of the front and rear sides of the pressure relief bin is provided with a second pressure relief opening.
2. A self-sealing butterfly valve as claimed in claim 1, wherein: The upper end faces of the two movable rods are fixedly connected with a connecting block, the front and rear sides of the bottom surface of the connecting block are fixedly connected with baffles, the opposite faces of the two baffles are respectively attached to the top of the front and rear sides of the pressure relief bin.
3. A self-sealing butterfly valve as claimed in claim 1, wherein: The middle parts of the front and rear sides of the pressure relief bin are fixedly connected with supports, the top surfaces of the two supports are fixedly connected with first connecting sleeves, the top parts of the two first connecting sleeves are fixedly connected with second connecting sleeves, the top of the second connecting sleeve is fixedly connected with a whistle, the air inlet end of the whistle penetrates into the upper end of the inner cavity of the second connecting sleeve.
4. A self-sealing butterfly valve as claimed in claim 3, wherein: The bottom surface of the inner wall of the first connecting sleeve is bearing-connected with a connecting shaft, the lower end of the surface of the connecting shaft is fixedly sleeved with a first spiral blade, the upper end of the connecting shaft penetrates into the inner cavity of the second connecting sleeve, the upper end face of the connecting shaft is fixedly connected with a second spiral blade.
5. A self-sealing butterfly valve as claimed in claim 3, wherein: The front and rear sides of the second connecting sleeve are provided with air inlet openings, which are located below the second spiral blade.
6. A self-sealing butterfly valve as claimed in claim 3, wherein: The end face of the side of the first connecting sleeve close to the pressure relief bin is attached to the side surface of the baffle, and the end of the inner wall of the first connecting sleeve away from the pressure relief bin is fixedly connected with a filter screen.