Release valve
By setting a two-fold anti-loosening structure of the pressure ring thread and the inner anti-loosening part in the discharge valve, combined with the anti-loosening washer design, the corrosion and fracture of a single pressure ring is solved, and a safe and reliable pressure relief effect is achieved.
Patent Information
- Application Number
- CN202422374224.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The single press ring in the existing drain valve is prone to corrosion and breaking under the action of a pressurized medium, which poses safety risks.
A discharge valve structure is designed, including a shell, a closing member, a press ring, an internal anti-loosening member and an anti-loosening gasket. The position of the closing member is adjusted in the sealing chamber by setting the press ring thread, and a two-fold anti-loosening structure is formed by the internal anti-loosening member and the sealing chamber. Combined with the anti-loosening gasket, the inner anti-loosening member is prevented from disengaging, ensuring safety and reliability.
It improves the safety and reliability of the discharge valve, prevents the pressure ring from falling off under medium pressure, and reduces safety hazards.
Smart Images
Figure CN223076349U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, and particularly relates to a relief valve. Background Art
[0002] A relief valve is used to discharge excessive pressure in a fluid system or the pressurized medium fluid accumulated in a closed cavity, preventing the pressurized fluid from flushing out during operation and maintenance, which may cause safety accidents.
[0003] In the prior art, a relief valve usually uses a single compression ring to press the closing member against the fluid force. However, after long-term use of such a relief valve, the threaded part of the single compression ring is prone to corrosion and fracture. Furthermore, during operation and maintenance, the single compression ring is likely to fly out under the action of the medium pressure. Therefore, there are safety risks. Summary of the Utility Model
[0004] Therefore, the technical problem to be solved by the utility model is the risk that the single compression ring in the relief valve in the prior art blows out the closing member under the action of the pressurized medium, and a safer and more reliable structure is provided.
[0005] For this purpose, the utility model provides a relief valve, including:
[0006] A housing, in which a blocking cavity, an inlet liquid flow channel and an outlet liquid flow channel communicating with the blocking cavity are provided;
[0007] A closing member, arranged in the blocking cavity;
[0008] The blocking cavity has a closed position and an open position. When the closing member is in the closed position, the closing member blocks the inlet liquid flow channel and the outlet liquid flow channel. When the closing member is in the open position, the inlet liquid flow channel and the outlet liquid flow channel communicate through the blocking cavity;
[0009] A compression ring, located in the blocking cavity and outside the closing member, and the compression ring is configured to move relative to the blocking cavity to push the closing member to the closed position.
[0010] In the above structure, by arranging the compression ring with threads in the blocking cavity, during use, only the compression ring needs to be rotated to adjust the position of the compression ring inside the blocking cavity, so as to realize the adjustment of the position of the closing member in the blocking cavity.
[0011] Optionally, internal threads are provided in the blocking cavity, and external threads adapted to the internal threads are provided on the outer side of the compression ring.
[0012] Optionally, the relief valve further includes an internal anti-loosening member, arranged in the blocking cavity and outside the compression ring, and the internal anti-loosening member is configured to be fixed with the blocking cavity to abut against the compression ring.
[0013] In the above structure, an inner anti-loosening member is further provided outside the pressing ring. The inner anti-loosening member is the same as the pressing ring, and an external thread adapted to the internal thread in the plugging cavity is provided on the outside of the inner anti-loosening member. Thus, a double anti-loosening structure is formed by the inner anti-loosening member and the pressing ring, which has the characteristics of safety, reliability and compact structure.
[0014] Optionally, an external thread adapted to the internal thread in the plugging cavity is provided on the outside of the inner anti-loosening member.
[0015] Optionally, the wall of the plugging cavity is in a stepped shape that expands outward, and the diameter of the pressing ring is smaller than the diameter of the inner anti-loosening member.
[0016] Optionally, fastening grooves are provided on the outer sides of both the pressing ring and the inner anti-loosening member facing outward.
[0017] Optionally, the relief valve further includes an anti-loosening washer, which is provided at the outer opening end of the plugging cavity, and the anti-loosening washer is configured to prevent the inner anti-loosening member from detaching from the plugging cavity.
[0018] In the above structure, an anti-loosening washer is fixedly provided at the outer opening end of the plugging cavity, and the inner diameter of the anti-loosening washer is smaller than the outer diameter of the inner anti-loosening member. Therefore, when the inner anti-loosening member reaches the anti-loosening washer, the anti-loosening washer can block the inner anti-loosening member to prevent the inner anti-loosening member from falling off.
[0019] Optionally, the inner diameter of the anti-loosening washer is smaller than the outer diameter of the inner anti-loosening member.
[0020] Optionally, one end of the housing is provided with an external thread and this end is adapted to be connected to the outside.
[0021] Optionally, the relief valve further includes a sealing ring, and the sealing ring is sleeved on the end of the housing provided with the external thread.
[0022] The relief valve provided by the present utility model has the following advantages:
[0023] 1. The relief valve provided by the present utility model includes a housing, a closing member, a pressing ring, an inner anti-loosening member and an anti-loosening washer. A plugging cavity, a liquid inlet channel and a liquid outlet channel communicating with the plugging cavity are provided in the housing. The closing member is arranged in the plugging cavity. The plugging cavity has a closed position and an open position. When the closing member is in the closed position, the closing member blocks the liquid inlet channel and the liquid outlet channel. When the closing member is in the open position, the liquid inlet channel and the liquid outlet channel communicate through the plugging cavity; the pressing ring is in the plugging cavity and outside the closing member, and the pressing ring is configured to move relative to the plugging cavity to push the closing member to the closed position.
[0024] For the relief valve of this structure, the housing is installed in the pressure relief hole of the external device, and the liquid inlet flow channel is communicated with the discharge hole, and the liquid outlet flow channel is communicated with the outside atmosphere. When pressure relief is required, loosen the pressure ring so that the pressure ring moves towards the outside of the plugging cavity. The closing member loses the support of the pressure ring and moves from the closed position in the plugging cavity to the open position under the action of the hydraulic pressure in the liquid inlet flow channel, thereby making the liquid inlet flow channel and the liquid outlet flow channel communicate to achieve the pressure relief function. By setting the pressure ring with threads in the plugging cavity, during use, only need to rotate the pressure ring to adjust the position of the pressure ring inside the plugging cavity, so as to realize the adjustment of the position of the closing member in the plugging cavity.
[0025] 2. The relief valve provided by the present utility model further includes an internal anti-loosening member, which is arranged inside the plugging cavity and outside the pressure ring, and the internal anti-loosening member is configured to be fixed with the plugging cavity to abut against the pressure ring.
[0026] For the relief valve of this structure, by additionally arranging an internal anti-loosening member outside the pressure ring, the internal anti-loosening member is the same as the pressure ring, and an external thread adapted to the internal thread in the plugging cavity is provided on the outside of the internal anti-loosening member. Thus, the internal anti-loosening member and the pressure ring form a double anti-loosening structure, which has the characteristics of safety, reliability and compact structure.
[0027] 3. The relief valve provided by the present utility model further includes a lock washer, and the lock washer is arranged at the open end outside the plugging cavity, and the lock washer is configured to prevent the internal anti-loosening member from detaching from the plugging cavity.
[0028] For the relief valve of this structure, by fixedly arranging a lock washer at the open end outside the plugging cavity, the inner diameter of the lock washer is smaller than the outer diameter of the internal anti-loosening member. Therefore, when the internal anti-loosening member reaches the lock washer, the lock washer can block the internal anti-loosening member to prevent the internal anti-loosening member from falling off. Description of the Drawings
[0029] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0030] Figure 1 It is a schematic structural view of the relief valve provided in the embodiment of the present utility model;
[0031] Description of the Reference Numerals:
[0032] 1 - Housing;
[0033] 2 - Closing member;
[0034] 3 - Pressure ring;
[0035] 4 - Internal anti-loosening part;
[0036] 5 - Anti-loosening washer;
[0037] 6 - Sealing ring;
[0038] 7 - Liquid inlet flow channel;
[0039] 8 - Liquid outlet flow channel. Detailed implementation mode
[0040] The technical solution of the present utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.
[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0042] Embodiment
[0043] This embodiment provides a relief valve, as Figure 1 shown, including a housing 1, a closing member 2, a pressure ring 3, an internal anti-loosening part 4, and an anti-loosening washer 5.
[0044] In this embodiment, a sealing cavity and a liquid inlet flow channel 7 and a liquid outlet flow channel 8 communicated with the sealing cavity are provided in the housing 1. The closing member 2 is arranged in the sealing cavity. The sealing cavity has a closed position and an open position. When the closing member 2 is in the closed position, the closing member 2 blocks the liquid inlet flow channel 7 and the liquid outlet flow channel 8. When the closing member 2 is in the open position, the liquid inlet flow channel 7 and the liquid outlet flow channel 8 are communicated through the sealing cavity; the pressure ring 3 is in the sealing cavity and outside the closing member 2, and the pressure ring 3 is configured to move relative to the sealing cavity to push the closing member 2 to the closed position.
[0045] In the above structure, the housing 1 is installed in the pressure relief hole of the external device, the liquid inlet flow channel 7 communicates with the discharge hole, and the liquid outlet flow channel 8 communicates with the outside atmosphere. When pressure relief is required, loosen the pressure ring 3 so that the pressure ring 3 moves towards the outside of the plugging cavity. The closing member 2 loses the support of the pressure ring 3 and moves from the closed position in the plugging cavity to the open position under the action of the hydraulic pressure in the liquid inlet flow channel 7, thereby enabling the liquid inlet flow channel 7 and the liquid outlet flow channel 8 to communicate and achieving the pressure relief function.
[0046] In the above embodiment, the closed position is the position where the closing member 2 plugs the liquid inlet flow channel 7 and the liquid outlet flow channel 8, that is Figure 1 the position where it is located. The open position is when the closing member 2 moves downward in Figure 1 and the liquid inlet flow channel 7 and the liquid outlet flow channel 8 communicate.
[0047] Specifically, in order to facilitate the adjustment of the position of the pressure ring 3 inside the plugging cavity, internal threads are provided in the plugging cavity, and external threads adapted to the internal threads are provided on the outside of the pressure ring 3. Thus, the position of the pressure ring 3 inside the plugging cavity can be adjusted by rotating the pressure ring 3. Further, fastening grooves, such as hexagonal blind holes, are provided on the outer side of the pressure ring 3. During use, the pressure ring 3 can be adjusted by an internal hexagon wrench.
[0048] By arranging the pressure ring 3 with threads in the plugging cavity, during use, only the pressure ring 3 needs to be rotated to adjust the position of the pressure ring 3 inside the plugging cavity, so as to realize the adjustment of the position of the closing member 2 in the plugging cavity.
[0049] Further, the internal anti-loosening member 4 is arranged inside the plugging cavity and is located outside the pressure ring 3. The internal anti-loosening member 4 is configured to be fixed with the plugging cavity to abut against the pressure ring 3.
[0050] In this embodiment, by additionally arranging the internal anti-loosening member 4 outside the pressure ring 3, the internal anti-loosening member 4 is the same as the pressure ring 3, and external threads adapted to the internal threads in the plugging cavity are provided on the outside of the internal anti-loosening member 4. Thus, the internal anti-loosening member 4 and the pressure ring 3 form a two-fold anti-loosening structure, which has the characteristics of safety, reliability, and compact structure.
[0051] Specifically, in order to facilitate the rotation of the internal anti-loosening member 4, fastening grooves, such as hexagonal blind holes, are provided on the outer side of the internal anti-loosening member 4. During use, the pressure ring 3 can be adjusted by an internal hexagon wrench. Among them, the size of the hexagonal blind hole on the internal anti-loosening member 4 is larger than the size of the hexagonal blind hole on the pressure ring 3.
[0052] In this embodiment, as Figure 1 shown, the wall of the plugging cavity is in a stepped shape that expands outward, that is, the cross-sectional area of the plugging cavity at the position of the internal anti-loosening member 4 is larger than the cross-sectional area of the plugging cavity at the position of the pressure ring 3.
[0053] In this embodiment, the anti-loosening washer 5 is arranged at the outer opening end of the plugging cavity. The anti-loosening washer 5 is configured to prevent the internal anti-loosening member 4 from detaching from the plugging cavity.
[0054] In the above structure, a lock washer 5 is fixedly arranged at the open end outside the plugging cavity. The inner diameter of the lock washer 5 is smaller than the outer diameter of the inner anti-loosening member 4. Therefore, when the inner anti-loosening member 4 reaches the lock washer 5, the lock washer 5 can block the inner anti-loosening member 4 to prevent the inner anti-loosening member 4 from falling off.
[0055] In this embodiment, as Figure 1 shown, the upper end of the housing 1 is provided with an external thread and this end is suitable for connection with the outside. The sealing ring 6 is sleeved on the end of the housing 1 provided with the external thread.
[0056] In the above structure, the upper end of the housing 1 is provided with an external thread, which facilitates the connection of the upper end of the housing 1 with external equipment. Moreover, a sealing ring 6 is provided at the upper end of the housing 1, which can seal the connection of the housing 1.
[0057] For the relief valve provided in this embodiment, when the relief valve is opened, insert a large-size hexagon wrench into the inner anti-loosening member 4, rotate and loosen the inner anti-loosening member 4 to the position of the lock washer 5, then insert a small-size hexagon wrench into the hexagonal blind hole of the pressing ring 3, slightly loosen the pressing ring 3, and the closing member 2 moves outward under the action of the liquid pressure in the liquid inlet channel 7, and the pressure medium overflows from the liquid outlet channel 8 to achieve pressure relief or discharge. When the relief valve is closed, the direction and sequence are opposite to those when the relief valve is opened.
[0058] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.
Claims
1. A relief valve, characterized in that, Comprising: A housing (1), within which a sealing cavity, a liquid inlet flow channel (7) and a liquid outlet flow channel (8) communicating with the sealing cavity are provided; A closing member (2), disposed within the sealing cavity; The sealing cavity has a closed position and an open position. When the closing member (2) is in the closed position, the closing member (2) seals the liquid inlet flow channel (7) and the liquid outlet flow channel (8). When the closing member (2) is in the open position, the liquid inlet flow channel (7) communicates with the liquid outlet flow channel (8) through the sealing cavity; A compression ring (3), located within the sealing cavity and outside the closing member (2), and the compression ring (3) is configured to move relative to the sealing cavity to push the closing member (2) to the closed position.
2. The bleed valve according to claim 1, wherein Internal threads are provided within the sealing cavity, and external threads adapted to the internal threads are provided on the outside of the compression ring (3).
3. The bleed valve according to claim 1, wherein An internal anti-loosening member (4) is further included, disposed within the sealing cavity and outside the compression ring (3), and the internal anti-loosening member (4) is configured to be fixed to the sealing cavity to abut against the compression ring (3).
4. The bleed valve according to claim 3, characterized in that, External threads adapted to the internal threads within the sealing cavity are provided on the outside of the internal anti-loosening member (4).
5. The bleed valve according to claim 3, characterized in that, The wall of the sealing cavity is in a stepped shape that expands outward, and the diameter of the compression ring (3) is smaller than the diameter of the internal anti-loosening member (4).
6. The bleed valve according to claim 3, characterized in that, Fastening grooves are provided on the outer sides of both the compression ring (3) and the internal anti-loosening member (4) facing outward.
7. The bleed valve according to claim 3, wherein, An anti-loosening washer (5) is further included, disposed at the outer opening end of the sealing cavity, and the anti-loosening washer (5) is configured to prevent the internal anti-loosening member (4) from disengaging from the sealing cavity.
8. The bleed valve according to claim 7, characterized in that, The inner diameter of the anti-loosening washer (5) is smaller than the outer diameter of the internal anti-loosening member (4).
9. The blow-off valve according to any one of claims 1-8, characterized in that, One end of the housing (1) is provided with external threads and this end is adapted to be connected to the outside.
10. The bleed valve according to claim 9, characterized in that, A sealing ring (6) is further included, and the sealing ring (6) is sleeved on the end of the housing (1) provided with external threads.