Integrated five-way check valve

Abstract

The utility model provides an integrated five -way check valve, including the valve body, the water inlet joint of being established in the lower end of valve body and the pressure tank joint of being established in the upper end of valve body, the outer wall of valve body upper portion has the water outlet joint, pressure gauge joint and sensor joint, the lower portion of valve body is equipped with a check seat, the upper surface center of check seat is equipped with a recess, the lower surface center of check seat is equipped with a movable hole with the center of recess groove bottom through, the inner wall of recess is equipped with a sealing taper face that presents wide on the top narrow, the movable hole is equipped with the check mechanism that matches with sealing taper face in, the filter basket that is located the check mechanism top in is equipped with in valve body, the outer wall of filter basket is equipped with a plurality of filter holes with its internal space through -going, the integrated five -way check valve of the utility model can have check and filter function simultaneously, not only can play the effect of water hammer prevention, can effectively avoid the damage of the impurity in water flow to pressure tank and water equipment.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to an integrated five-way check valve. Background Technology

[0002] The five-way valve is a core connection and control component in domestic water well booster systems or towerless water supply systems. It typically has five ports, which are connected to the water pump inlet, user outlet, pressure tank, pressure gauge, and sensor, respectively. Its function is to distribute the water output from the water pump and realize the pressure control and monitoring of the system.

[0003] Traditional five-way valves have a very limited function and usually do not have a check function. In actual use, when the water pump stops working, the high-pressure water in the pipeline is very likely to flow back, causing water hammer and impacting the inside of the water pump. This not only produces huge noise and vibration, but will also seriously damage the life of the water pump in the long run. At the same time, impurities are inevitably present in the water flow, and these impurities can easily enter the pressure tank and water-using equipment through the five-way valve, causing blockage or damage. Utility Model Content

[0004] The present invention aims to solve the existing technical problem by providing an integrated five-way check valve that integrates both check and filtration functions. It not only prevents water hammer but also effectively avoids damage to pressure tanks and water-using equipment caused by impurities in the water flow.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses an integrated five-way check valve, including a valve body, an inlet connector at the lower end of the valve body, and a pressure tank connector at the upper end of the valve body. The upper outer wall of the valve body has an outlet connector, a pressure gauge connector, and a sensor connector. A check seat is provided in the lower part of the valve body. A groove is provided in the center of the upper surface of the check seat. A movable hole is provided in the center of the lower surface of the check seat, which is connected to the center of the bottom of the groove. A sealing cone surface with a wider upper part and a narrower lower part is provided in the inner wall of the groove. A check mechanism matching the sealing cone surface is provided in the movable hole. A filter basket is provided in the valve body above the check mechanism. A number of filter holes communicating with its internal space are provided on the outer wall of the filter basket. A fixing structure is provided in the upper part of the valve body, which fixes the filter basket and the check mechanism in the valve body. The check mechanism includes a valve core rod. The upper end of the valve core rod passes into the filter basket and is provided with a cleaning mechanism matching the filter basket.

[0006] The check valve mechanism includes a check valve core disposed within a movable hole, with the upper part of the check valve core located within a groove; the upper outer wall of the check valve core is provided with an annular sealing groove; a matching sealing ring is provided within the sealing groove, with the outer edge of the sealing ring protruding outward to the outside of the sealing groove and fitting against the sealing cone surface; a guide seat is provided within the valve body above the check seat; a guide sleeve is provided at the center of the guide seat; the valve core rod is disposed at the upper end of the check valve core, with the upper end of the valve core rod passing upward through the guide sleeve; a lower spring fitted outside the valve core rod is provided between the guide seat and the check valve core; several circumferentially evenly distributed water passage holes are provided on the guide seat; several support feet are provided on the outer edge of the lower surface of the guide seat, pressing against the upper surface of the check seat.

[0007] The fixing structure includes a groove on the inner wall of the valve body, the groove being annular; the lower end port of the filter basket encloses several water passage holes; the lower outer wall of the filter basket is provided with a limiting part that fits against the outer edge of the upper surface of the guide seat; a matching retaining spring is provided in the groove; the outer edge of the retaining spring protrudes outward to the outside of the groove, and a limiting tube outside the filter basket is provided between the outer edge of the retaining spring and the limiting part.

[0008] The cleaning mechanism includes a scraper seat located at the upper end of the valve core rod; a supporting part is provided on the lower outer wall of the scraper seat; an annular scraper is provided on the upper surface of the supporting part outside the scraper seat; the annular scraper and the scraper seat are fixed together by a number of screws evenly distributed in a circle; the thickness of the outer edge of the annular scraper decreases outward, and the outer circumferential surface of the annular scraper is in contact with the inner wall of the filter basket; the position of the lowest filter hole on the filter basket is higher than the position of the annular scraper.

[0009] The lower surface of the scraper seat has a fixing hole at its center that matches the upper end of the valve core rod; the outer wall of the valve core rod has several circumferentially distributed limiting grooves; the inner wall of the fixing hole has several limiting blocks that match the limiting grooves; an upper spring is provided between the upper inner wall of the filter basket and the upper surface of the scraper seat; the upper surface of the scraper seat has a lower boss at its center that is engaged with the lower end of the upper spring; the upper inner wall of the filter basket has an upper boss at its center that is engaged with the upper end of the upper spring.

[0010] The filter basket has a through hole at the center of its upper surface, which communicates with its internal space; a screw is provided at the center of the upper surface of the upper protrusion; the upper end of the screw passes through the through hole and is screwed with a nut that fits against the upper surface of the filter basket.

[0011] A collision protection pad is provided at the center of the upper surface of the lower protrusion; a positioning groove is provided at the center of the upper surface of the lower protrusion; a positioning part matching the positioning groove is provided at the center of the lower surface of the collision protection pad; the collision protection pad and the positioning part are integrally formed and are both made of rubber.

[0012] The outer edge of the lower surface of the check valve core is provided with several guide rods that are evenly distributed in a circle.

[0013] This utility model has the following beneficial effects: Compared with existing technologies, the integrated five-way check valve with the structure of this utility model not only achieves the check function through the cooperation of the lower spring and the check valve core, thus preventing water hammer and avoiding water loss from the pump and impeller idling, but also filters the water flow through the filter holes on the filter basket, effectively preventing impurities in the water flow from damaging the pressure tank and water-using equipment. At the same time, the scraper seat is pushed downward by the elastic force of the lower spring, and the scraper seat is moved downward by the valve core rod, thereby moving the annular scraper downward. Finally, the annular scraper scrapes out the impurities adhering to the inner wall of the filter basket, thus cleaning the impurities. Therefore, the check function, filtration function and impurity cleaning function are integrated into one. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the integrated five-way check valve of this utility model; Figure 2 This is a partial cross-sectional view of the integrated five-way check valve of this utility model; Figure 3 This is a schematic diagram of the guide seat structure; Figure 4 This is a schematic diagram of the check valve core. Figure 5 This is a schematic diagram of the integrated five-way check valve of this utility model. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Please see Figures 1 to 5 This utility model provides an integrated five-way check valve, including a valve body 1, a water inlet connector 2 located at the lower end of the valve body 1, and a pressure tank connector 3 located at the upper end of the valve body 1. The upper outer wall of the valve body 1 has a water outlet connector 4, a pressure gauge connector 5, and a sensor connector 6. A check seat 7 is provided in the lower part of the valve body 1. A groove 8 is provided at the center of the upper surface of the check seat 7. A movable hole 9 is provided at the center of the lower surface of the check seat 7, which communicates with the center of the bottom of the groove 8. A sealing cone surface that is wider at the top and narrower at the bottom is provided on the inner wall of the groove 8. 10; The movable hole 9 is provided with a check mechanism that matches the sealing cone surface 10; The valve body 1 is provided with a filter basket 11 located above the check mechanism; The outer wall of the filter basket 11 is provided with a plurality of filter holes 12 that communicate with its internal space; The upper part of the valve body 1 is provided with a fixing structure that fixes the filter basket 11 and the check mechanism in the valve body 1; The check mechanism includes a valve core rod 13; The upper end of the valve core rod 13 passes into the filter basket 11 and is provided with a cleaning mechanism that matches the filter basket 11.

[0016] The check valve mechanism includes a check valve core 14 disposed within the movable hole 9, with the upper part of the check valve core 14 located within the groove 8; the upper outer wall of the check valve core 14 is provided with an annular sealing groove 15; a matching sealing ring 16 is provided within the sealing groove 15, with the outer edge of the sealing ring 16 protruding outward to the outside of the sealing groove 15 and fitting against the sealing cone surface 10; a guide seat 17 is provided within the valve body 1, located above the check seat 7; a guide sleeve 18 is provided at the center of the guide seat 17; a valve core rod 13 is disposed at the upper end of the check valve core 14, with the upper end of the valve core rod 13 passing upward through the guide sleeve 18; a lower spring 19 is provided between the guide seat 17 and the check valve core 14, fitted outside the valve core rod 13; several circumferentially evenly distributed water passage holes 20 are provided on the guide seat 17; several support feet 21 are provided on the outer edge of the lower surface of the guide seat 17, pressing against the upper surface of the check seat 7.

[0017] The fixing structure includes a groove 22 on the inner wall of the valve body 1, the groove 22 being annular; the lower end of the filter basket 11 encloses several water passage holes 20; the lower outer wall of the filter basket 11 is provided with a limiting part 23 that fits against the outer edge of the upper surface of the guide seat 17; a matching retaining spring 24 is provided in the groove 22; the outer edge of the retaining spring 24 protrudes outward to the outside of the groove 22, and a limiting tube 25 is provided between the outer edge of the retaining spring 24 and the limiting part 23 outside the filter basket 11.

[0018] The cleaning mechanism includes a scraper seat 26 located at the upper end of the valve core rod 13; a bearing portion 27 is provided on the lower outer wall of the scraper seat 26; an annular scraper 28 is provided on the upper surface of the bearing portion 27 outside the scraper seat 26; the annular scraper 28 and the scraper seat 26 are fixed together by a plurality of screws 29 evenly distributed in a circle; the thickness of the outer edge of the annular scraper 28 decreases outward, and the outer circumferential surface of the annular scraper 28 is in contact with the inner wall of the filter basket 11; the position of the lowermost filter hole 12 on the filter basket 11 is higher than the position of the annular scraper 28.

[0019] The scraper seat 26 has a fixing hole 30 at the center of its lower surface that matches the upper end of the valve core rod 13; the outer wall of the valve core rod 13 has several circumferentially distributed limiting grooves 31; the inner wall of the fixing hole 30 has several limiting blocks 32 that match the limiting grooves 31; an upper spring 33 is provided between the upper inner wall of the filter basket 11 and the upper surface of the scraper seat 26; the center of the upper surface of the scraper seat 26 has a lower boss 34 that is locked in the lower end of the upper spring 33; the center of the upper inner wall of the filter basket 11 has an upper boss 35 that is locked in the upper end of the upper spring 33.

[0020] The filter basket 11 has a through hole 36 at the center of its upper surface, which communicates with its internal space; the upper boss 35 has a screw 37 at the center of its upper end face; the upper end of the screw 37 passes through the through hole 36 and is screwed with a nut 38 that fits against the upper surface of the filter basket 11.

[0021] A bumper pad 39 is provided at the center of the upper surface of the lower boss 34; a positioning groove 40 is provided at the center of the upper surface of the lower boss 34; a positioning part 41 matching the positioning groove 40 is provided at the center of the lower surface of the bumper pad 39; the bumper pad 39 and the positioning part 41 are integrally formed and both are made of rubber.

[0022] The outer edge of the lower surface of the check valve core 14 is provided with several guide rods 42 that are evenly distributed in a circle.

[0023] The method of using this utility model is as follows: Inlet connector 2 can be used to connect to the outlet of a water pump, outlet connector 4 can be used to connect to water-using equipment, pressure tank connector 3 can be used to install a pressure tank, pressure gauge connector 5 can be used to install a pressure gauge, and sensor connector 6 can be used to install pressure sensors or temperature sensors and other inductive switches.

[0024] When the water pump is turned on, water flows into the inlet connector 2 and pushes the check valve core 14 upward. When the check valve core 14 moves upward, the lower spring 19 is compressed and generates elastic force. The outer edge of the sealing ring 16 is no longer tightly attached to the sealing cone surface 10. The lower part of the check valve core 14 is completely inserted into the groove 8. At this time, the water in the inlet connector 2 can flow upward through the groove 8 and then flow into the filter basket 11 through the water passage on the guide seat 17.

[0025] When the check valve core 14 moves upward, the valve core rod 13 drives the scraper seat 26 to move upward synchronously, thereby realizing the upward movement of the annular scraper 28. Therefore, when water flows into the filter basket 11 through the lower port of the filter basket 11, there is no need to worry that the presence of the annular scraper 28 will affect the upward movement of the water. At this time, the water can flow into the gap between the outer wall of the filter basket 11 and the inner wall of the limiting tube 25 through the filter hole 12. The filter hole 12 can trap impurities in the water flow in the filter basket 11 through its own aperture, thus achieving the effect of filtration. The water flow that enters the gap between the outer wall of the filter basket 11 and the inner wall of the limiting tube 25 will continue to flow upward and finally flow out through the outlet connector for use.

[0026] When the water pump is turned off, the water flow loses pressure. At this time, the check valve core 14 moves down and resets quickly under the pressure of the lower spring 19. The groove 8 is sealed again by the fit between the sealing ring 16 and the sealing cone surface 10, which effectively prevents water from flowing back into the water pump and plays a role in preventing water hammer. At the same time, it can effectively prevent the water flow in the water pump from flowing out and causing the impeller to run dry.

[0027] The presence of the upper spring 33 not only assists the check valve core 14 to quickly move down and reset, but also ensures that the scraper seat 26 is firmly fixed on the upper end of the valve core rod 13, realizing the synchronous movement of the scraper seat 26 and the valve core rod 13. This ensures that the annular scraper 28 can stably scrape off the impurities adhering to the inner wall of the filter basket 11 when the scraper seat 26 moves down, effectively avoiding the situation where the accumulation of impurities on the inner wall of the filter basket 11 causes the inner end of the filter hole 12 to be blocked.

[0028] In summary, this utility model not only achieves the check function through the cooperation of the lower spring 19 and the check valve core 14, thus preventing water hammer and avoiding water loss from the pump and impeller idling, but also filters the water flow through the filter holes 12 on the filter basket 11, effectively preventing impurities in the water flow from damaging the pressure tank and water-using equipment. At the same time, the scraper seat can be pushed downward by the elastic force of the lower spring 19, and the scraper seat 26 can be moved downward by the valve core rod 13, thereby moving the annular scraper 28 downward. Finally, the annular scraper 28 scrapes out the impurities adhering to the inner wall of the filter basket 11, thus cleaning the impurities. Therefore, the check function, filtration function and impurity cleaning function are integrated into one.

[0029] When it is necessary to disassemble the check mechanism, filter basket and cleaning mechanism inside the valve body 1, simply remove the retaining ring 24 from the retaining groove 22 through the pressure tank connector 3, and the check mechanism, filter basket and cleaning mechanism can be quickly removed from the valve body 1, so as to realize the quick repair and replacement of the parts.

[0030] The scraper seat 26 has a lower protrusion 34 at the center of its upper surface, which is locked inside the lower end of the upper spring 33. The filter basket 11 has an upper protrusion 35 at the center of its upper inner wall, which is locked inside the upper end of the upper spring 33. The presence of the upper protrusion 35 and the lower protrusion 34 can effectively ensure the stability of the upper and lower ends of the upper spring 33, thereby ensuring the stability of the upper spring 33 when it is compressed and opened.

[0031] The upper surface of the filter basket 11 has a through hole 36 that communicates with its internal space. The upper surface of the upper boss 35 has a screw 37 at its center. The upper end of the screw 37 passes through the through hole 36 and is screwed with a nut 38 that fits against the upper surface of the filter basket 11. The upper boss 35 can be quickly disassembled by simply rotating the nut 38 upward to disengage it from the screw 37.

[0032] A bumper pad 39 is provided at the center of the upper surface of the lower boss 34, and a positioning groove 40 is provided at the center of the upper surface of the lower boss 34. A positioning part 41 matching the positioning groove 40 is provided at the center of the lower surface of the bumper pad 39. The bumper pad 39 and the positioning part 41 are integrally formed and both are made of rubber. The presence of the bumper pad 39 can effectively prevent the upper boss 35 and the lower boss 34 from directly colliding and causing damage when the scraper seat 26 moves to its limit.

[0033] The outer edge of the lower surface of the check valve core 14 is provided with several guide rods 42 that are evenly distributed in a circle. When the check valve core 14 moves upward and disengages from the movable hole 9, the guide rods 42 always fit against the inner wall of the movable hole 9, thus playing a guiding role.

Claims

1. An integrated five-way check valve, comprising a valve body, an inlet connector located at the lower end of the valve body, and a pressure tank connector located at the upper end of the valve body; the upper outer wall of the valve body has an outlet connector, a pressure gauge connector, and a sensor connector, characterized in that: A check seat is provided in the lower part of the valve body; a groove is provided in the center of the upper surface of the check seat; a movable hole is provided in the center of the lower surface of the check seat, which is connected to the center of the bottom of the groove; a sealing cone surface with a wider top and narrower bottom is provided in the inner wall of the groove; a check mechanism matching the sealing cone surface is provided in the movable hole; a filter basket is provided in the valve body above the check mechanism; a number of filter holes communicating with its internal space are provided on the outer wall of the filter basket; a fixing structure is provided in the upper part of the valve body, which fixes the filter basket and the check mechanism in the valve body; the check mechanism includes a valve core rod; the upper end of the valve core rod passes into the filter basket and is provided with a cleaning mechanism matching the filter basket.

2. The integrated five-way check valve according to claim 1, characterized in that: The check valve mechanism includes a check valve core disposed within a movable hole, with the upper part of the check valve core located within a groove; the upper outer wall of the check valve core is provided with an annular sealing groove; a matching sealing ring is provided within the sealing groove, with the outer edge of the sealing ring protruding outward to the outside of the sealing groove and fitting against the sealing cone surface; a guide seat is provided within the valve body above the check seat; a guide sleeve is provided at the center of the guide seat; the valve core rod is disposed at the upper end of the check valve core, with the upper end of the valve core rod passing upward through the guide sleeve; a lower spring fitted outside the valve core rod is provided between the guide seat and the check valve core; several circumferentially evenly distributed water passage holes are provided on the guide seat; several support feet are provided on the outer edge of the lower surface of the guide seat, pressing against the upper surface of the check seat.

3. An integrated five-way check valve according to claim 2, characterized in that: The fixing structure includes a groove on the inner wall of the valve body, the groove being annular; the lower end port of the filter basket encloses several water passage holes; the lower outer wall of the filter basket is provided with a limiting part that fits against the outer edge of the upper surface of the guide seat; a matching retaining spring is provided in the groove; the outer edge of the retaining spring protrudes outward to the outside of the groove, and a limiting tube outside the filter basket is provided between the outer edge of the retaining spring and the limiting part.

4. An integrated five-way check valve according to claim 3, characterized in that: The cleaning mechanism includes a scraper seat located at the upper end of the valve core rod; a supporting part is provided on the lower outer wall of the scraper seat; an annular scraper is provided on the upper surface of the supporting part outside the scraper seat; the annular scraper and the scraper seat are fixed together by a number of screws evenly distributed in a circle; the thickness of the outer edge of the annular scraper decreases outward, and the outer circumferential surface of the annular scraper is in contact with the inner wall of the filter basket; the position of the lowest filter hole on the filter basket is higher than the position of the annular scraper.

5. An integrated five-way check valve according to claim 4, characterized in that: The lower surface of the scraper seat has a fixing hole at its center that matches the upper end of the valve core rod; the outer wall of the valve core rod has several circumferentially distributed limiting grooves; the inner wall of the fixing hole has several limiting blocks that match the limiting grooves; an upper spring is provided between the upper inner wall of the filter basket and the upper surface of the scraper seat; the upper surface of the scraper seat has a lower boss at its center that is engaged with the lower end of the upper spring; the upper inner wall of the filter basket has an upper boss at its center that is engaged with the upper end of the upper spring.

6. An integrated five-way check valve according to claim 5, characterized in that: The filter basket has a through hole at the center of its upper surface, which communicates with its internal space; a screw is provided at the center of the upper surface of the upper protrusion; the upper end of the screw passes through the through hole and is screwed with a nut that fits against the upper surface of the filter basket.

7. An integrated five-way check valve according to claim 5, characterized in that: A collision protection pad is provided at the center of the upper surface of the lower protrusion; a positioning groove is provided at the center of the upper surface of the lower protrusion; a positioning part matching the positioning groove is provided at the center of the lower surface of the collision protection pad; the collision protection pad and the positioning part are integrally formed and are both made of rubber.

8. An integrated five-way check valve according to claim 2, characterized in that: The outer edge of the lower surface of the check valve core is provided with several guide rods that are evenly distributed in a circle.

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