Connecting device for large-flux water purifier and small-flow heating device
By designing a balanced diaphragm with a diversion device and a duckbill structure, the frequent start and stop and diaphragm deformation problems when the large-flux water purifier is connected in parallel with the small-flow heating device, achieving stable control of water flow and improving the accuracy of the device.
Patent Information
- Application Number
- CN202422378884.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-29
AI Technical Summary
When the large-throughput water purifier is connected in parallel with the small-flow heating device, the water purifier is frequently started and stopped, and the water holes of the balance diaphragm are prone to deform during long-term use, which affects the accuracy and life of the use.
A connection device including a shunt device is designed, using a shunt base, shunt upper cover and shunt assembly, a balancing diaphragm and shunt spring with a duckbill structure are used to achieve stable control of water flow through the slit hole of the duckbill structure, and combined with a check valve and plug structure, ensuring balance and stability of water flow.
It effectively avoids frequent start-stop problems of water purifiers, and improves the accuracy and life of the device through the expansion and stability of the duckbill structure, and reduces costs.
Smart Images
Figure CN223090061U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water purifier auxiliary connection devices, and particularly provides a connection device for a large-flux water purifier and a small-flow heating device. Background Technique
[0002] When a large-flux water purifier is connected in parallel with a pipeline machine or other instant heating devices, since the water output of the water purifier is greater than the water consumption of the heating device, the large-flux water purifier will start and stop frequently, seriously affecting the service life of the water purifier. In response to this problem, the invention patent with the patent number 2022106098455 provides a connection device for a large-flux water purifier and a small-flow heating device. However, it is found in the use process that during the long-term use of the device, the water passing holes on the balance diaphragm will deform due to back-and-forth expansion and contraction, reducing the use accuracy of the product. Content of the Utility Model
[0003] In order to solve the above technical problems, the utility model provides a connection device for a large-flux water purifier and a small-flow heating device.
[0004] The present utility model is implemented as follows. A connecting device for a large-flow water purifier and a small-flow heating device is provided, which includes a flow splitting device. The flow splitting device includes a flow splitting base, a flow splitting upper cover, and a flow splitting component disposed between the flow splitting base and the flow splitting upper cover. The flow splitting base is provided with a pure water inlet, a pure water outlet, and a water purifier water source interface. A cylindrical structure is provided inside the flow splitting base, and the inside of the cylindrical structure is connected to the water purifier water source interface. A one-way valve assembly is provided in the cavity of the water purifier water source interface. The cavities of the pure water inlet and the pure water outlet are respectively disposed on both sides of the cylindrical structure. The flow splitting upper cover is provided with a heating device interface. The flow splitting component includes a balance diaphragm, an upper diaphragm pressing plate, a lower diaphragm pressing plate, a flow splitting spring, and a diaphragm retaining ring. The upper surface of the upper diaphragm pressing plate is provided with a circle of bone plates spaced at a certain distance from each other. The lower surface is provided with at least one first buckle. A through hole is opened on the upper diaphragm pressing plate at the center of the first buckle. After the first buckle passes through the corresponding holes on the balance diaphragm and the lower diaphragm pressing plate, it is clamped with the lower surface of the lower diaphragm pressing plate, clamping the balance diaphragm between the upper diaphragm pressing plate and the lower diaphragm pressing plate. There is at least one duckbill structure on the upper surface of the balance diaphragm. A slit hole is provided at the top of the duckbill structure. A hole for the duckbill structure to pass through is provided on the upper diaphragm pressing plate. A large hole communicating with the slit hole of the duckbill structure is opened in the middle of the lower diaphragm pressing plate. The flow splitting spring is supported between the upper diaphragm pressing plate and the heating device interface. The middle of the diaphragm retaining ring passes through the upper end of the cylindrical structure and is installed in the cavity of the flow splitting base by interference fit, located directly below the flow splitting component. A plurality of flow-through holes are provided on the diaphragm retaining ring. A return port is formed between the upper end of the cylindrical structure and the balance diaphragm. A plug and a plug support spring are provided in the cavity of the pure water outlet. The plug support spring is supported between the inner wall of the pure water outlet cavity and the plug. The plug abuts below a flow-through hole of the diaphragm retaining ring. The pure water outlet is isolated or communicated with the pure water inlet through the plug.
[0005] Preferably, a filtering structure is provided in the cavity of the pure water inlet.
[0006] Further preferably, at least one second buckle is further provided on the lower surface of the upper diaphragm pressing plate. The middle of the second buckle does not have the through hole. After the second buckle passes through the corresponding holes on the balance diaphragm and the lower diaphragm pressing plate, it is clamped with the lower surface of the lower diaphragm pressing plate, clamping the balance diaphragm between the upper diaphragm pressing plate and the lower diaphragm pressing plate together with the first buckle.
[0007] Further preferably, the distances from the centers of the first buckle and the second buckle to the center of the balance diaphragm are equal.
[0008] Further preferably, the outer ring of the balance diaphragm is crimped at the docking position of the flow splitting base and the flow splitting upper cover. An inverted U-shaped connecting portion is formed inside the outer ring of the balance diaphragm.
[0009] Further preferably, the pure water inlet, the pure water outlet, the water purifier water source interface, and the heating device interface are all quick connectors or quick plug connectors.
[0010] Further preferably, a decompression cavity is further provided between the shunt base and the shunt upper cover. An external water source interface is provided at the upper end of the decompression cavity. A coaxial water source insertion rod is provided at the lower end of the external water source interface. A decompression assembly is provided between the lower end of the water source insertion rod and the upper end of the shunt base. The decompression assembly includes a decompression assembly lower cover, a decompression diaphragm, an overpressure plug, a sealing ring, a decompression assembly upper cover, and a decompression spring. The outer ring of the decompression diaphragm is crimped at the butt-joint position of the shunt base and the shunt upper cover. An inverted U-shaped connecting portion II is formed inside the outer ring of the decompression diaphragm. The decompression assembly lower cover abuts against the support rod on the shunt base. The overpressure plug is placed at the center inside the decompression assembly lower cover. The decompression assembly lower cover passes through the hole in the center of the decompression diaphragm and is threadedly connected to the decompression assembly upper cover to form a seal. One or two sealing rings are placed in the gap formed between the top of the decompression assembly lower cover, the decompression assembly upper cover, and the outer wall of the water source insertion rod. The decompression spring is supported between the outer wall of the decompression assembly upper cover and the external water source interface, outside the water source insertion rod. A communication port is provided between the decompression cavity and the cavity of the water purifier water source interface.
[0011] Compared with the prior art, the advantages of the present utility model are as follows:
[0012] The present utility model not only avoids the problem that when only the heating device uses water, the water output of the water purifier is greater than the water consumption of the heating device, resulting in frequent start and stop of the water purifier, but also uses a duckbill structure to realize the expansion and contraction of the water passing hole, making the expansion and contraction of the water passing hole more stable during the long-term use of the device, and having low requirements for material precision, so the cost is also relatively low. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the external view of one side of the connecting device provided by the present utility model;
[0014] Figure 2 is Figure 1 the view taken along the line A-A in
[0015] Figure 3 is the external view of another perspective of the connecting device provided by the present utility model;
[0016] Figure 4 is Figure 3 the view taken along the line B-B in
[0017] Figure 5 is the exploded structure view of the connecting device provided by the present utility model;
[0018] Figure 6 is the external view of the connection structure of the balance diaphragm, the upper diaphragm pressing plate, and the lower diaphragm pressing plate;
[0019] Figure 7 is Figure 6 the view taken along the line C-C in
[0020] Figure 8 The Figure 6 explosion structure diagram. Specific implementation manner
[0021] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0022] Referring to Figures 1 - 8 , this embodiment provides a connecting device for a large-flux water purifier and a small-flux heating device, including a flow splitting device. The flow splitting device includes a flow splitting base 10, a flow splitting upper cover 1, and a flow splitting component disposed between the flow splitting base 10 and the flow splitting upper cover 1. A pure water inlet 112, a pure water outlet 113, and a water purifier water source interface 122 are provided on the flow splitting base 10. A cylindrical structure 21 is provided inside the flow splitting base 10. The inside of the cylindrical structure 21 is communicated with the water purifier water source interface 122. A one-way valve assembly 14 is provided in the cavity of the water purifier water source interface 122. A one-way valve retaining ring 13 is provided between the one-way valve assembly 14 and the water purifier water source interface 122. The cavities of the pure water inlet 112 and the pure water outlet 113 are respectively disposed on both sides of the cylindrical structure 21. A heating device interface 111 is provided on the flow splitting upper cover 1. The flow splitting component includes a balance diaphragm 4, an upper diaphragm pressing plate 3, a lower diaphragm pressing plate 5, a flow splitting spring 2, and a diaphragm retaining ring 6. The balance diaphragm 4 is made of rubber or silica gel. A circle of bone plates 34 with a certain distance between adjacent ones is provided on the upper surface of the upper diaphragm pressing plate 3. Two first buckles 32 and two second buckles 33 are provided on the lower surface. A through hole 31 with a diameter of 0.2 - 2 mm is opened on the upper diaphragm pressing plate 3 at the center of the first buckle 32. The first buckle 32 and the second buckle 33 pass through the corresponding holes on the balance diaphragm 4 and the lower diaphragm pressing plate 5 and are clamped with the lower surface of the lower diaphragm pressing plate 5, clamping the balance diaphragm 4 between the upper diaphragm pressing plate 3 and the lower diaphragm pressing plate 5. There are two duckbill structures 41 on the upper surface of the balance diaphragm 4. The top of the duckbill structure 41 is provided with a slit hole not exceeding 3 mm. A hole for the duckbill structure 41 to pass through is provided on the upper diaphragm pressing plate 3. A large hole communicating with the slit holes of the two duckbill structures 41 is opened in the middle of the lower diaphragm pressing plate 5. The flow splitting spring 2 is supported between the upper diaphragm pressing plate 5 and the heating device interface 111. The middle of the diaphragm retaining ring 6 passes through the upper end of the cylindrical structure 21 and is installed in the cavity of the flow splitting base 10 by interference fit, located directly below the flow splitting component. A plurality of flow holes are provided on the diaphragm retaining ring 6. A return port 1101 with a smooth top surface is formed between the upper end of the cylindrical structure 21 and the balance diaphragm 4;
[0023] In the cavity of the pure water outlet 113, there is a plug 7 and a plug support spring 9. The plug support spring 9 is supported between the inner wall of the cavity of the pure water outlet 113 and the plug 7. The plug 7 abuts below an overflow hole of the diaphragm retaining ring 6. The pure water outlet 113 is isolated or communicated with the pure water inlet 112 through the plug 7.
[0024] When the device is not operating, since the through holes of the two first buckles 32 communicate the pure water inlet 112 and the heating device interface 111, the pressure on both sides of the balance diaphragm 4 is balanced. The balance diaphragm 4 returns to its position under the action of the outer edge fixed position and the shunt spring 2 and presses tightly on the smooth plane at the top of the return port 1101. The pure water inlet 112 and the return port 1101 are isolated. The tap water at the water purifier water source interface 122 is isolated from the return port 1101 through the one-way valve 14.
[0025] When only the pure water faucet is used for water, water flows in from the pure water inlet 112, passes through the overflow hole on the diaphragm retaining ring 6 and the plug 7 in sequence, and then directly flows out from the pure water outlet 113. At this time, the heating device at the heating device interface 111 is turned off, and water will not flow out from the heating device interface 111. In addition, due to the self-resetting effect of the shunt spring 2 and the balance diaphragm 4 itself, the balance diaphragm 4 will press tightly on the smooth plane at the top of the return port 1101, maintaining the isolation between the pure water inlet 112 and the return port 1101 and preventing backflow.
[0026] When only the heating system interface is used for water, pure water flows in from the pure water inlet 112, passes through the overflow hole on the diaphragm retaining ring 6 and the through hole of the first buckle 32 in sequence and flows out from the heating device interface 111. Since the through opening of the first buckle 32 is relatively small, the pressure on the side of the balance diaphragm 4 close to the pure water inlet will be greater than the pressure on the side close to the heater system interface. Due to the effect of this pressure difference, the balance diaphragm 4 will move towards the heating device interface 111, and the balance diaphragm 4 will separate from the smooth plane at the top of the return port 1101. The excess water flows through the return port 1101 and the one-way valve 14 to the water purifier water source connector 122 for the water purifier to recycle. When the heating device stops using water, since the central openings of the two first buckles 32 communicate the pure water inlet 112 and the heating device interface 111, the pressure on both sides of the balance diaphragm 4 is balanced. The balance diaphragm returns to its position under the action of its outer connecting part and the shunt spring 2 and presses tightly on the smooth plane at the top of the return port 1101. The pure water inlet 112 and the return port 1101 are isolated, and the backflow stops, and the water purifier shuts down. When the water consumption of the heating device increases, the pressure difference between the two sides of the balance diaphragm 4 increases, and the slit on the duckbill structure 41 will automatically open a certain opening according to the size of the pressure difference, and the water flow will increase accordingly. When the water consumption of the heating device decreases, the slit contracts under the action of the duckbill structure 41, and the water passing through volume decreases, so as to automatically maintain the pressure difference between the two sides of the balance diaphragm 4 and ensure that the backflow can proceed normally as long as the water consumption of the heating system changes.
[0027] When the heating device and the pure water faucet use water simultaneously, due to the resistance of the plug 7 and the plug support spring 9, the purified water produced by the water purifier will be preferentially supplied to the heating device for use. Since the pure water faucet is opened, the pressure on the pure water inlet side decreases, resulting in the inability to maintain the pressure difference between the upper and lower sides of the balance diaphragm 4. Due to the self-resetting effect of the shunt spring 2 and the balance diaphragm 4 itself, the balance diaphragm 4 will return to the smooth plane at the top of the return port 1101, and the excess purified water will preferentially flow out through the pure water outlet 113.
[0028] To prevent foreign objects from entering the device and causing the isolation failure of the pure water inlet 112 and the return port 1101 or the isolation failure of the one-way valve assembly 14, as an improvement, a filtering structure 8 is provided in the cavity of the pure water inlet 112.
[0029] To achieve the balance of water flow through, as an improvement, the distances from the centers of the first buckle 32 and the second buckle 33 to the center of the balance diaphragm 4 are equal.
[0030] As a specific fixing method for the outer edge of the balance diaphragm 4, the outer ring of the balance diaphragm 4 is crimped at the docking position of the shunt base 10 and the shunt upper cover 1, and a first inverted U-shaped connecting portion 42 is formed inside the outer ring of the balance diaphragm 4.
[0031] Preferably, the pure water inlet 112, the pure water outlet 113, the water purifier water source interface 122, and the heating device interface 111 are all quick connectors or quick plug connectors.
[0032] To ensure applicability, a decompression cavity is further provided between the shunt base 10 and the shunt upper cover 1. An external water source interface 121 is provided at the upper end of the decompression cavity. A coaxial water source plug 101 is provided at the lower end of the external water source interface 121. A decompression component is provided between the lower end of the water source plug 101 and the upper end of the shunt base 10. The decompression component includes a decompression component lower cover 15, a decompression diaphragm 16, an overpressure plug 17, a sealing ring 18, a decompression component upper cover 19, and a decompression spring 20. The outer ring of the decompression diaphragm 16 is crimped at the docking position of the shunt base 10 and the shunt upper cover 1, and a second inverted U-shaped connecting portion is formed inside the outer ring of the decompression diaphragm 16. The decompression component lower cover 15 abuts against the support rod 22 on the shunt base 10. The overpressure plug 17 is placed at the center inside the decompression component lower cover 15. The decompression component lower cover 15 passes through the hole at the center of the decompression diaphragm 16 and is threadedly connected to the decompression component upper cover 19 to form a seal. One or two sealing rings 18 are placed in the gap formed by the top of the decompression component lower cover 15, the outer wall of the decompression component upper cover 17, and the outer wall of the water source plug 101. The decompression spring 20 is supported between the outer wall of the decompression component upper cover 19 and the external water source interface 121, outside the water source plug 101. A communication port is provided between the decompression cavity and the cavity of the water purifier water source interface 122.
[0033] When the external water source pressure is too high, the pressure reducing device will control the pressure at the water inlet during the operation of the water purifier below the water full stop pressure of the water purifier to ensure that the backflow can proceed normally.
Claims
1. A connecting device for a large-flow water purifier and a small-flow heating device, characterized in that It includes a flow splitting device, which comprises a flow splitting base (10), a flow splitting upper cover (1), and a flow splitting component arranged between the flow splitting base (10) and the flow splitting upper cover (1). The flow splitting base (10) is provided with a pure water inlet (112), a pure water outlet (113), and a water purifier water source interface (122). Inside the flow splitting base (10), there is a cylindrical structure (21), and the inside of the cylindrical structure (21) is communicated with the water purifier water source interface (122). A one-way valve component (14) is arranged in the cavity of the water purifier water source interface (122). The cavities of the pure water inlet (112) and the pure water outlet (113) are respectively arranged on both sides of the cylindrical structure (21). The flow splitting upper cover (1) is provided with a heating device interface (111). The flow splitting component includes a balance diaphragm (4), an upper diaphragm pressing plate (3), a lower diaphragm pressing plate (5), a flow splitting spring (2), and a diaphragm retaining ring (6). The upper surface of the upper diaphragm pressing plate (3) is provided with a circle of bone plates (34) adjacent to each other at a certain distance. The lower surface is provided with at least one first buckle (32). A through hole (31) is opened on the upper diaphragm pressing plate (3) at the center of the first buckle (32). The first buckle (32) passes through the corresponding holes on the balance diaphragm (4) and the lower diaphragm pressing plate (5) and is clamped with the lower surface of the lower diaphragm pressing plate (5), clamping the balance diaphragm (4) between the upper diaphragm pressing plate (3) and the lower diaphragm pressing plate (5); there is at least one duckbill structure (41) on the upper surface of the balance diaphragm (4). The top of the duckbill structure (41) is provided with a slit hole. There is a hole on the upper diaphragm pressing plate (3) for the duckbill structure (41) to pass through. A large hole communicated with the slit hole of the duckbill structure (41) is opened in the middle of the lower diaphragm pressing plate (5). The flow splitting spring (2) is supported between the upper diaphragm pressing plate (3) and the heating device interface (111). The middle of the diaphragm retaining ring (6) passes through the upper end of the cylindrical structure (21) and is installed in the cavity of the flow splitting base (10) by interference fit, located directly below the flow splitting component. A plurality of flow holes are arranged on the diaphragm retaining ring (6). A return port (1101) is formed between the upper end of the cylindrical structure (21) and the balance diaphragm (4); in the cavity of the pure water outlet (113), there is a plug (7) and a plug support spring (9). The plug support spring (9) is supported between the inner wall of the cavity of the pure water outlet (113) and the plug (7). The plug (7) abuts below a flow hole of the diaphragm retaining ring (6). The pure water outlet (113) is isolated or communicated with the pure water inlet (112) through the plug (7).
2. The connecting device of the large-flow water purifier and the small-flow heating device according to claim 1, characterized in that, A filtering structure (8) is arranged in the cavity of the pure water inlet (112).
3. The connecting device of the large-flux water purifier and the small-flux heating device according to claim 1, characterized in that, The lower surface of the upper diaphragm pressing plate (3) is further provided with at least one second buckle (33). The middle of the second buckle (33) is not provided with the through hole (31). The second buckle (33) passes through the corresponding holes on the balance diaphragm (4) and the lower diaphragm pressing plate (5) and is clamped with the lower surface of the lower diaphragm pressing plate (5), clamping the balance diaphragm (4) between the upper diaphragm pressing plate (3) and the lower diaphragm pressing plate (5) together with the first buckle (32).
4. The connecting device of the large-flow water purifier and the small-flow heating device according to claim 3, characterized in that, The center distances of the first buckle (32) and the second buckle (33) from the center of the balance diaphragm (4) are equal.
5. The connecting device between the large-flow water purifier and the small-flow heating device according to claim 1, characterized in that, The outer ring of the balance diaphragm (4) is crimped at the docking position of the flow splitting base (10) and the flow splitting upper cover (1). An inner first inverted U-shaped connecting portion (42) is formed inside the outer ring of the balance diaphragm (4).
6. The connecting device between the large-flow water purifier and the small-flow heating device according to claim 1, characterized in that, The pure water inlet (112), the pure water outlet (113), the water purifier water source interface (122), and the heating device interface (111) are all quick connectors or quick plug connectors.
7. The connecting device for a large-flow water purifier and a small-flow heating device according to any one of claims 1-6, characterized in that, A pressure reducing cavity is further provided between the flow splitting base (10) and the flow splitting upper cover (1). An external water source interface (121) is provided at the upper end of the pressure reducing cavity. A coaxial water source insertion rod (101) is provided at the lower end of the external water source interface (121). A pressure reducing assembly is provided between the lower end of the water source insertion rod (101) and the upper end of the flow splitting base (10). The pressure reducing assembly includes a pressure reducing assembly lower cover (15), a pressure reducing diaphragm (16), an overpressure plug (17), a sealing ring (18), a pressure reducing assembly upper cover (19), and a pressure reducing spring (20). The outer ring of the pressure reducing diaphragm (16) is crimped at the docking position of the flow splitting base (10) and the flow splitting upper cover (1). An inner second inverted U-shaped connecting portion is formed inside the outer ring of the pressure reducing diaphragm (16). The pressure reducing assembly lower cover (15) abuts against a support rod (22) on the flow splitting base (10). The overpressure plug (17) is placed at the center inside the pressure reducing assembly lower cover (15). The pressure reducing assembly lower cover (15) passes through a hole at the center of the pressure reducing diaphragm (16) and is threadedly connected to the pressure reducing assembly upper cover (19) to form a seal. One or two sealing rings (18) are placed in the gap formed between the top of the pressure reducing assembly lower cover (15), the outer wall of the pressure reducing assembly upper cover (19), and the outer wall of the water source insertion rod (101). The pressure reducing spring (20) is supported between the outer wall of the pressure reducing assembly upper cover (19) and the external water source interface (121) and on the outside of the water source insertion rod (101). A communication port is provided between the pressure reducing cavity and the cavity of the water purifier water source interface (122).