Pressure release valve capable of rapidly feeding water
By designing a fast water-up pressure relief valve that includes optimized valve core assembly and multiple pressure relief paths, the problems of low sensitivity of existing pressure relief valve seals and single pressure relief passage are solved, and faster pressure relief and drainage are achieved, ensuring that the equipment is safe and fast injected water in a short time.
Patent Information
- Application Number
- CN202421404574.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing pressure relief valve seals have low sensitivity and cannot respond quickly to pressure changes, which leads to the equipment under excessive pressure in a short period of time, increasing the risk of damage, and there is only one pressure relief channel, which cannot quickly release sufficient pressure, causing safety hazards.
A quick water-loading pressure relief valve is designed, including a housing, a valve chamber, a pressure relief chamber and a drainage chamber. It adopts an optimized valve core assembly and multiple pressure relief paths. A sealing sleeve and a first spring are provided above the sealing member. When the sealing member comes into contact with the sealing sleeve, the air discharge passage is blocked. By cooperating with the inclined surface and the contact part, the sealing member can quickly respond to pressure changes and achieve faster pressure relief and drainage effects.
It realizes efficient and fast water feeding function, meets the needs of equipment to quickly inject water in a short time, the seal is more sensitive, can quickly respond to pressure changes, and provides multiple pressure relief paths to ensure that the pressure can be quickly and effectively released when the system pressure is too high, and prevent equipment damage.
Smart Images
Figure CN222910893U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coffee machines, in particular to a pressure relief valve for rapid water filling. Background Art
[0002] The rapid water filling pressure relief valve of a coffee machine is a specially designed valve used to control and release pressure during the rapid water filling process of the coffee machine. The main function of this valve is to ensure that when water quickly enters the heating system of the coffee machine, the pressure can be released in a timely manner to avoid damage to the equipment caused by excessive pressure. The pressure relief valve is usually located between the water pump and the heating system. When the water pump is rapidly filling water, the pressure relief valve will open and close according to the pressure change in the system. If the detected pressure is too high, the valve will automatically open to release the excess pressure until the pressure returns to the safe range, and then the valve will close.
[0003] In the existing pressure relief valves, the sensitivity of the sealing member is relatively low. When the internal pressure of the system is too high, the sealing member cannot quickly open the pressure relief channel, which may cause the equipment to bear excessive pressure in a short time and increase the risk of damage. At the same time, the existing pressure relief valves have only one pressure relief channel. When the pressure in the system rises sharply, enough pressure cannot be quickly released, resulting in too high pressure, which may cause potential safety hazards. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a pressure relief valve for rapid water filling, in which the sealing member is more sensitive, can quickly respond to pressure changes, and achieve a faster pressure relief and drainage effect.
[0005] To solve the above technical problems, a pressure relief valve for rapid water filling of the utility model includes a housing. A valve cavity, a pressure relief chamber and a drain chamber are arranged in the housing. An inlet and an outlet are respectively arranged at both ends of the valve cavity. The valve cavity is respectively communicated with the pressure relief chamber and the drain chamber. A valve core assembly is arranged in the valve cavity. A pressure relief assembly is arranged in the pressure relief chamber. A drain assembly is arranged in the drain chamber. The drain assembly includes a sealing member. A sealing sleeve is arranged above the sealing member. A first spring is arranged between the sealing sleeve and the sealing member. A drain channel is arranged in the sealing sleeve. When the sealing member is in contact with the sealing sleeve, the sealing member blocks the drain channel. A contact part is arranged on the sealing member. A guiding inclined surface for guiding the sealing member to move upward is arranged on the valve core assembly.
[0006] The valve core assembly includes a fixed valve core and a movable valve core. The fixed valve core is fixedly arranged in the valve cavity. A water outlet channel is arranged in the fixed valve core. The movable valve core is movably arranged on one side of the fixed valve core. A first pressure relief channel is formed between the fixed valve core, the movable valve core and the inner wall of the valve cavity. A pressure relief port is arranged at the connection of the first pressure relief channel and the pressure relief chamber.
[0007] A limiting protrusion is provided at the upper end of the movable valve core, the contact part is provided at one end of the limiting protrusion away from the water inlet, an opening and closing part is provided at the lower end of the movable valve core, and a sealing arc surface for sealing cooperation therewith is provided on the inner wall of the valve cavity.
[0008] A step portion is provided on the inner wall of the valve cavity, and the step portion is in limiting cooperation with the limiting protrusion.
[0009] The opening and closing part and the inner wall of the valve cavity form a second pressure relief channel, and a drain port is provided at the connection of the second pressure relief channel and the drain cavity.
[0010] A second spring is provided between the fixed valve core and the movable valve core, and the second spring is a conical spring.
[0011] The pressure relief assembly includes a sealing seat provided in the pressure relief cavity, a sealing block is provided in the sealing seat, the sealing block is in sealing cooperation with the pressure relief port, a plug is provided above the sealing seat, the plug is in threaded cooperation with the inner wall of the pressure relief cavity, and a third spring is provided between the plug and the sealing seat.
[0012] A shoulder is provided on the movable valve core, a retaining ring is provided on the fixed valve core, one end of the second spring abuts against the shoulder, and the other end abuts against the retaining ring.
[0013] A first sealing ring is provided between the retaining ring and the fixed valve core, and a second sealing ring is provided at one end of the shoulder away from the second spring.
[0014] The first sealing ring and the second sealing ring are silicone components.
[0015] When the present utility model is in use, water flows into the valve cavity from the water inlet, pushing the movable valve core to move towards the fixed valve core. Due to the abutting cooperation between the guiding inclined surface on the movable valve core and the contact part on the sealing member, the movable valve core drives the sealing member to move upward, and at the same time the first spring is compressed. The sealing member abuts against the sealing sleeve to seal the drain channel. In addition, due to the movement of the movable valve core, a gap appears between the opening and closing part and the sealing arc surface, and water flows into the first pressure relief channel from the gap and flows out from the water outlet channel; when the water pressure in the first pressure relief channel is too high, the sealing seat and the sealing block are pushed up, and water flows into the pressure relief cavity from the pressure relief port and is discharged from the upper channel. In addition, a part of the water will flow from the first pressure relief channel into the second pressure relief channel, and the water in the second pressure relief channel enters the drain cavity from the drain port. When the water no longer enters the valve cavity, the movable valve core resets, the sealing member moves downward, and the water in the drain cavity is discharged from the drain channel.
[0016] The beneficial effects brought by the present utility model are:
[0017] Through the optimized valve core design and precise water flow control of the present utility model, the efficient and rapid water filling function is realized, meeting the requirement of rapid water injection of the equipment in a short time.
[0018] The seal of the present utility model is more sensitive, capable of quickly responding to pressure changes and achieving a faster pressure relief and drainage effect.
[0019] The present utility model provides multiple pressure relief paths to ensure that pressure can be quickly and effectively released when the system pressure is too high, preventing equipment damage. Brief Description of the Drawings
[0020] Figure 1 is a schematic structural view of the present utility model.
[0021] Figure 2 is a cross-sectional view of the present utility model.
[0022] Figure 3 is a schematic structural view of the movable valve core of the present utility model.
[0023] Figure 4 is a schematic structural view of the seal of the present utility model.
[0024] Figure 5 is a schematic structural view of the fixed valve core of the present utility model.
[0025] In the figure: 1. Housing; 2. Valve cavity; 3. Pressure relief chamber; 4. Drainage chamber; 5. Water inlet; 6. Water outlet; 7. Valve core assembly; 8. Pressure relief assembly; 9. Drainage assembly; 10. Seal; 11. Sealing sleeve; 12. First spring; 13. Drainage channel; 14. Contact part; 15. Guide inclined plane; 16. Fixed valve core; 17. Movable valve core; 18. Water outlet channel; 19. First pressure relief channel; 20. Pressure relief port; 21. Step part; 22. Limit projection; 23. Second pressure relief channel; 24. Drainage port; 25. Second spring; 26. Opening and closing part; 27. Sealing arc surface; 28. Sealing seat; 29. Sealing block; 30. Plug; 31. Third spring; 32. Shoulder; 33. Retaining ring; 34. First sealing ring; 35. Second sealing ring. Detailed Embodiments
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] According to Figures 1 to 4As shown in the figure, a pressure relief valve with rapid water filling of the present utility model includes a housing 1. A valve cavity 2, a pressure relief chamber 3 and a drain chamber 4 are arranged inside the housing 1. An inlet 5 and an outlet 6 are respectively arranged at two ends of the valve cavity 2. The valve cavity 2 is respectively communicated with the pressure relief chamber 3 and the drain chamber 4. A valve core assembly 7 is arranged inside the valve cavity 2. A pressure relief assembly 8 is arranged inside the pressure relief chamber 3. A drain assembly 9 is arranged inside the drain chamber 4. The drain assembly 9 includes a seal 10. A seal sleeve 11 is arranged above the seal 10. A first spring 12 is arranged between the seal sleeve 11 and the seal 10. A drain channel 13 is arranged inside the seal sleeve 11. When the seal 10 is in contact with the seal sleeve 11, the seal 10 blocks the drain channel 13, ensuring that the drain channel 13 is closed when water flows in and preventing water from flowing out through the drain channel 13. A contact part 14 is arranged on the seal 10. A guiding inclined surface 15 is arranged on the valve core assembly 7. Through the cooperation of the guiding inclined surface 15 and the contact part 14, when the valve core assembly 7 is impacted by water flow, the seal 10 is driven to move upward.
[0028] The valve core assembly 7 includes a fixed valve core 16 and a movable valve core 17. The fixed valve core 16 is fixedly arranged inside the valve cavity 2. A water outlet channel 18 is arranged inside the fixed valve core 16. The movable valve core 17 is movably arranged on one side of the fixed valve core 16. The movable valve core 17 can freely move along the axial direction of the fixed valve core 16 inside the valve cavity 2 to adjust the opening degree of the water flow channel and control the water inflow and water flow speed. A first pressure relief channel 19 is formed between the fixed valve core 16, the movable valve core 17 and the inner wall of the valve cavity 2. The first pressure relief channel 19 can guide water flow through this channel into the pressure relief chamber 3 when the pressure in the system is too high, playing a role in pressure relief. A pressure relief port 20 is arranged at the connection between the first pressure relief channel 19 and the pressure relief chamber 3. The pressure relief port 20 controls the release of pressure through precise opening and closing to avoid equipment damage or safety hazards caused by too high pressure in the system.
[0029] A limiting projection 22 is provided at the upper end of the movable valve core 17. The contact portion 14 is provided at one end of the limiting projection 22 away from the water inlet 5. By cooperating with the guiding inclined surface 15 of the valve core assembly 7, the sealing member 10 is guided to move upward. An opening and closing portion 26 is provided at the lower end of the movable valve core 17. The opening and closing portion 26 is in sealing cooperation with the sealing arc surface 27 on the inner wall of the valve cavity 2. When the movable valve core 17 moves, a gap is generated between the opening and closing portion 26 and the sealing arc surface 27 for water flow to pass through. A stepped portion 21 is provided on the inner wall of the valve cavity 2. The stepped portion 21 is in limiting cooperation with the limiting projection 22 to ensure that the movable valve core 17 moves within a predetermined range and improve stability. The opening and closing portion and the inner wall of the valve cavity 2 form a second pressure relief channel 23. The second pressure relief channel 23 provides an additional pressure relief path. When the system pressure is too high, water flows through this channel into the drain cavity 4 to further enhance the pressure relief function. A drain port 24 is provided at the connection between the second pressure relief channel 23 and the drain cavity 4. Through the control of the drain assembly 9, the drain port 24 realizes the drainage of residual water to prevent water accumulation from affecting the system operation.
[0030] The pressure relief assembly 8 includes a sealing seat 28 provided in the pressure relief cavity 3. The sealing seat 28 is fixed in the pressure relief cavity 3 and is used to support and position other sealing components. A sealing block 29 is provided in the sealing seat 28. The sealing block 29 is in sealing cooperation with the pressure relief port 20 to ensure that the pressure relief port 20 is in a sealed state under normal working conditions and prevent water leakage. A plug 30 is provided above the sealing seat 28. The plug 30 is threadedly engaged with the inner wall of the pressure relief cavity 3 through threads, so that the plug 30 is fixedly arranged above the pressure relief cavity 3. A third spring 31 is provided between the plug 30 and the sealing seat 28. The third spring 31 provides a pressing force for the sealing block 29 to ensure that the sealing block 29 can reliably seal the pressure relief port 20.
[0031] According to Figure 5 As shown, a second spring 25 is provided between the fixed valve core 16 and the movable valve core 17. The second spring 25 is a conical spring. The conical spring can provide a large elastic force in a small space to ensure that the movable valve core 17 can move flexibly during the working process. A shoulder 32 is provided on the movable valve core 17. The shoulder 32 is used to limit the movement range of the movable valve core 17. A retaining ring 33 is provided on the fixed valve core 16 to provide support for the second spring 25. One end of the second spring 25 abuts against the shoulder 32, and the other end abuts against the retaining ring 33. A first sealing ring 34 is provided between the retaining ring 33 and the fixed valve core 16. A second sealing ring 35 is provided at one end of the shoulder 32 away from the second spring 25. The first sealing ring 34 and the second sealing ring 35 are silicone components to ensure the sealing performance and stability of the valve core assembly 7.
[0032] When the utility model is in use, water flows into the valve cavity 2 from the water inlet 5, pushing the movable valve core 17 to move towards the fixed valve core 16. Since the guiding inclined surface 15 on the movable valve core 17 abuts and cooperates with the contact part 14 on the seal 10, the movable valve core 17 drives the seal 10 to move upward. At the same time, the first spring 12 is compressed, and the seal 10 abuts against the seal sleeve 11 to seal the drain channel 13. In addition, due to the movement of the movable valve core 17, a gap appears between the opening and closing part 26 and the sealing arc surface 27, and water flows into the first pressure relief channel 19 from the gap and flows out from the water outlet channel 18; when the water pressure in the first pressure relief channel 19 is too high, the seal seat 28 and the seal block 29 are lifted, and water flows into the pressure relief chamber 3 from the pressure relief port 20 and is discharged from the upper channel. In addition, a part of the water will flow from the first pressure relief channel 19 into the second pressure relief channel 23, and the water in the second pressure relief channel 23 enters the drain chamber 4 from the drain port 24. When the water no longer enters the valve cavity 2, the movable valve core 17 resets, the seal 10 moves downward, and the water in the drain chamber 4 is discharged from the drain channel 13.
[0033] The beneficial effects brought by the utility model are as follows:
[0034] Through the optimized valve core design and precise water flow control, the utility model realizes the efficient and rapid water filling function, meeting the requirement of the equipment for rapid water injection in a short time.
[0035] The seal of the utility model is more sensitive, capable of quickly responding to pressure changes and achieving a faster pressure relief and drainage effect.
[0036] The utility model provides multiple pressure relief paths, ensuring that the pressure can be quickly and effectively released when the system pressure is too high, preventing equipment damage.
[0037] The above is only the preferred embodiment of the utility model. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the scope of the utility model patent application.
Claims
1. A quick water-supply pressure relief valve, comprising a housing, a valve cavity, a pressure relief chamber and an emptying chamber are arranged in the housing, a water inlet and a water outlet are arranged at two ends of the valve cavity, the valve cavity is respectively connected with the pressure relief chamber and the emptying chamber, a valve core assembly is arranged in the valve cavity, a pressure relief assembly is arranged in the pressure relief chamber, and an emptying assembly is arranged in the emptying chamber, characterized in that: The emptying assembly includes a seal, a sealing sleeve is provided above the seal, a first spring is provided between the sealing sleeve and the seal, an emptying channel is provided in the sealing sleeve, when the seal contacts the sealing sleeve, the seal blocks the emptying channel, a contact portion is provided on the seal, and a guiding slope for guiding the seal to move upward is provided on the valve core assembly.
2. A rapid water supply pressure relief valve according to claim 1, characterized in that: The valve core assembly includes a fixed valve core and a movable valve core. The fixed valve core is fixedly arranged in the valve cavity, and a water outlet channel is arranged in the fixed valve core; the movable valve core is movably arranged on one side of the fixed valve core, and a first pressure relief channel is formed between the fixed valve core, the movable valve core and the inner wall of the valve cavity, and a pressure relief port is arranged at the connection between the first pressure relief channel and the pressure relief chamber.
3. A rapid water supply pressure relief valve according to claim 2, characterized in that: A limiting protrusion is provided at the upper end of the movable valve core, the contact portion is provided at an end of the limiting protrusion away from the water inlet, an opening and closing portion is provided at the lower end of the movable valve core, and a sealing arc surface that seals with the limiting protrusion is provided on the inner wall of the valve cavity.
4. A rapid water-supply pressure relief valve according to claim 3, characterized in that: A step portion is provided on the inner wall of the valve cavity, and the step portion is limitedly matched with the limiting protrusion.
5. A rapid water-supply pressure relief valve according to claim 3, characterized in that: The opening and closing portion and the inner wall of the valve cavity form a second pressure relief channel, and a drain port is provided at the connection between the second pressure relief channel and the drain chamber.
6. A rapid water-supply pressure relief valve according to claim 2, characterized in that: A second spring is arranged between the fixed valve core and the movable valve core, and the second spring is a conical spring.
7. A rapid water-supply pressure relief valve according to claim 2, characterized in that: The pressure relief assembly includes a sealing seat arranged in the pressure relief chamber, a sealing block is arranged in the sealing seat, the sealing block is sealed with the pressure relief port, a screw plug is arranged above the sealing seat, the screw plug is threadedly matched with the inner wall of the pressure relief chamber, and a third spring is arranged between the screw plug and the sealing seat.
8. A rapid water-supply pressure relief valve according to claim 6, characterized in that: The movable valve core is provided with a stop shoulder, the fixed valve core is provided with a stop ring, one end of the second spring abuts against the stop shoulder, and the other end abuts against the stop ring.
9. A rapid water-filling pressure relief valve according to claim 8, characterized in that: A first sealing ring is arranged between the retaining ring and the fixed valve core, and a second sealing ring is arranged at one end of the retaining shoulder away from the second spring.
10. A rapid water-filling pressure relief valve according to claim 9, characterized in that: The first sealing ring and the second sealing ring are silicone components.