CN211474946U

CN211474946U - Constant-pressure constant-flow safety valve

Info

Publication number: CN211474946U
Application number: CN202020042857.0U
Authority: CN
Inventors: 官永怀
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-09-11
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses a constant voltage constant current relief valve, including the tee bend valve body, the upper portion of tee bend valve body is provided with water supply connection port, and the lower part of tee bend valve body is provided with constant voltage constant current output connection port, and one side of tee bend valve body is provided with pressure release leakage flow, and the internally mounted of water connectors has the flow control case, and the overflow mouth is connected in the outside of pressure release leakage flow, and the internally mounted of overflow mouth has the pressure control case. The utility model discloses a pressure control case and flow control case, two complementary formation automatic control of case, automatics is elasticity formula automatic control, need not manual adjustment, when water supply end water supply reaches the user demand, the overflow mouth outflow can be followed to the water yield that surpasss, in order to ensure that output water pressure reaches the effect of constant voltage constant current, the pressure limiting current limiting device when mainly being applicable to constipation crowd enema washing intestinal, gas heater produced the self-extinguishing problem when the water yield undersize simultaneously also well has been solved to this kind of overflow formula design.

Description

Constant-pressure constant-flow safety valve

Technical Field

The utility model relates to a relief valve technical field specifically is a constant voltage constant current relief valve.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve in the prior art only achieves constant pressure, but cannot achieve constant flow, the flow is not limited, the water yield changes along with the change of the water inflow, the safety valve cannot be well suitable for constipation people to wash intestinal tracts through enema, and in the application of a gas water heater, the safety valve easily generates the self-extinguishing problem when the water yield is too low.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a constant voltage constant current relief valve, the effectual relief valve of having solved among the prior art has only accomplished the constant voltage, but can't accomplish the constant current, and the flow is unrestricted, and the water yield changes along with the inflow, and the intestinal is washed to applicable to constipation crowd enema that can not be fine, in gas heater's application, produces the self-extinguishing problem easily when the water yield undersize.

In order to achieve the above object, the utility model provides a following technical scheme: the three-way valve comprises a three-way valve body, the upper portion of the three-way valve body is provided with a water supply connection port, the lower portion of the three-way valve body is provided with a constant-pressure constant-current output connection port, one side of the three-way valve body is provided with a pressure relief and flow discharge port, the inner sides of the water supply connection port and the constant-pressure constant-current output connection port are both provided with an internal thread interface, the upper side of the water supply connection port is connected with an external thread interface, a first anti-leakage convex net filter core gasket is installed below the external thread interface inside the water supply connection port, a water outlet connector is connected below the constant-pressure constant-current output connection port, a second anti-leakage convex net filter core gasket is installed above the water outlet connector inside the constant-pressure constant-current output connection port, a flow control valve core.

Preferably, the flow control valve core comprises a first pressure spring, a conical valve core and a chuck, the first pressure spring is installed in the middle of the water outlet connector, the conical valve core is sleeved inside the first pressure spring, and the chuck is installed above the conical valve core.

Preferably, the pressure control valve core comprises an inner core, a second pressure spring, an ejector pin and a sealing sleeve, the second pressure spring is sleeved in the middle of the inner core, the ejector pin is sleeved in the second pressure spring, and the sealing sleeve is sleeved on one side, far away from the second pressure spring, of the ejector pin.

Preferably, the first leakage-proof convex net filter core gasket and the second leakage-proof convex net filter core gasket are both composed of a sealing ring and a filter screen.

Preferably, the water inlet pressure of the water supply connecting port is 0.05-0.25MPa, the water outlet pressure of the constant-pressure constant-flow output connecting port is 0.04-0.05MPa, and the upward spraying height of the water outlet end is 30-40 cm.

The utility model discloses a pressure control case and flow control case, two complementary formation automatic control of case, automatics is elasticity formula automatic control, need not manual adjustment, when water supply end water supply reaches the user demand, the overflow mouth outflow can be followed to the water yield that surpasss, in order to ensure that output water pressure reaches the effect of constant voltage constant current, the pressure limiting current limiting device when mainly being applicable to constipation crowd enema washing intestinal, gas heater produced the self-extinguishing problem when the water yield undersize simultaneously also well has been solved to this kind of overflow formula design.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic diagram of the position of the internal thread interface of the present invention.

Fig. 4 is a schematic view of the flow control valve core structure of the present invention.

Fig. 5 is a schematic diagram of the structure of the pressure control valve core of the present invention.

Reference numbers in the figures: 1. a three-way valve body; 2. a water supply connection port; 3. the constant voltage and constant current output is connected with a port; 4. a pressure relief and flow relief port; 5. an internal thread interface; 6. an external thread interface; 7. a first leak-proof convex net filter element gasket; 8. a water outlet joint; 9. a second leak-proof convex net filter element gasket; 10. a flow control valve core; 101. a first pressure spring; 102. a conical valve core; 103. a chuck; 11. an overflow port; 12. a pressure control valve spool; 121. an inner core; 122. a second pressure spring; 123. a thimble; 124. and (5) sealing the sleeve.

Detailed Description

The following describes the present invention in further detail with reference to fig. 1-5.

In the first embodiment, as shown in fig. 1, 2, 3, 4 and 5, the present invention comprises a three-way valve body 1, a water supply connection port 2 is provided on the upper portion of the three-way valve body 1, a constant pressure and constant current output connection port 3 is provided on the lower portion of the three-way valve body 1, a pressure relief and discharge port 4 is provided on one side of the three-way valve body 1, an internal screw port 5 is provided on each of the water supply connection port 2 and the constant pressure and constant current output connection port 3, an external screw port 6 is connected above the water supply connection port 2, a first leak-proof convex net filter core gasket 7 is installed inside the water supply connection port 2 below the external screw port 6, a water outlet joint 8 is connected below the constant pressure and constant current output connection port 3, a second leak-proof convex net filter core gasket 9 is installed inside the constant pressure and constant current output connection port 3 above the water outlet joint 8, a flow control valve core, the outer side of the pressure relief and flow relief port 4 is connected with an overflow port 11, a pressure control valve core 12 is arranged in the overflow port 11, firstly, the water inlet end is determined to be connected with an inner wire interface 5 or an outer wire interface 6 according to requirements, water flow filters impurities in water through a first anti-leakage convex net filter core gasket 7 and a second anti-leakage convex net filter core gasket 9 to ensure the purity of the water, when the supply pressure and the flow rate of the water supply end exceed set values, the water pressure props against a thimble 123 in the pressure control valve core 12, the thimble 123 moves outwards through a second pressure spring 122, the water flow overflows from a gap exposed by the thimble 123, thus the pressure and the exceeding water quantity are released outwards from the overflow port 11 together to ensure the effect that the water pressure at the output end reaches a constant pressure and constant flow, secondly, the conical valve core 102 in the flow control valve core 10 is fixed by a chuck 103 and is pressed by the water flow, the conical valve core 102 moves downwards due, the size of the outlet can be adjusted according to the supply pressure and the flow rate of the water supply end by the conical shape of the conical valve core 102, so that the constant flow rate of the water outlet end is obtained, finally, water flows out of the water outlet joint 8, the whole safety valve is in automatic control by the pressure control valve core 12 and the flow control valve core 10 which are complementary, the automatic devices are all elastic type automatic control without manual adjustment, when the water supply quantity of the water supply end meets the use requirement, the excessive water quantity can flow out of the overflow port 11, so that the effect of constant pressure and constant flow of the water pressure at the output end is ensured, the overflow type design is mainly suitable for a pressure limiting and flow limiting device when intestinal tracts are flushed by enema of constipation crowds, and the problem that a gas water heater is easy to generate self-flame.

In the second embodiment, based on the first embodiment, as shown in fig. 2 and 4, the flow control valve core 10 includes a first pressure spring 101, a conical valve core 102 and a chuck 103, the first pressure spring 101 is installed in the middle of the water outlet joint 8, the conical valve core 102 is sleeved inside the first pressure spring 101, the chuck 103 is installed above the conical valve core 102, the conical valve core 102 is fixed by the chuck 103 and is moved downward by the pressure of the water flow, the conical valve core 102 moves downward due to the elasticity of the first pressure spring 101, and the size of the outlet can be adjusted according to the supply pressure and the flow rate of the water supply end by the conical shape of the conical valve core 102, so as to obtain the constant flow rate of the water outlet end.

In a third embodiment, based on the first embodiment, as shown in fig. 2 and 5, the pressure control valve core 12 includes an inner core 121, a second pressure spring 122, an ejector pin 123 and a sealing sleeve 124, the second pressure spring 122 is sleeved in the middle of the inner core 121, the ejector pin 123 is sleeved in the second pressure spring 122, the sealing sleeve 124 is sleeved on one side of the ejector pin 123 away from the second pressure spring 122, when the supply pressure and the flow rate of the water supply end exceed set values, water pressure pushes the ejector pin 123, the ejector pin 123 moves outwards through the second pressure spring 122, water flows overflow from a gap exposed by the ejector pin 123, finally, the pressure and the water are released outwards from the overflow port 11 together, and pressure and flow are discharged from the overflow port 11, so as to ensure that the water pressure at the output end achieves the effect of constant pressure and constant flow.

Fourth embodiment, on the basis of first embodiment, first protruding net of leak protection filter core gasket 7 and the protruding net of second leak protection filter core gasket 9 all have sealing washer and filter screen to constitute, can filter the impurity of aquatic through the filter screen, guarantee the purity of water.

Fifth embodiment, on the basis of the first embodiment, the water inlet pressure of the water supply connection port 2 is between 0.05 and 0.25MPa, the water outlet pressure of the constant-pressure constant-flow output connection port 3 is between 0.04 and 0.05MPa, the upward spraying height of the water outlet end is between 30 and 40cm, when the water supply pressure exceeds 0.05MPa, the pressure and the water flow are released outwards from the overflow port 11, and the spraying height is between 30 and 40cm, which is most suitable for vaginal and anal-intestinal irrigation.

The working principle is as follows: when the utility model is used, firstly, the water inlet end is connected with the inner screw interface 5 or the outer screw interface 6 according to the requirement, the water flow filters impurities in the water through the first leak-proof convex net filter core gasket 7 and the second leak-proof convex net filter core gasket 9, the purity of the water is ensured, when the supply pressure and the flow rate of the water supply end exceed the set values, the water pressure props against the thimble 123 in the pressure control valve core 12, the thimble 123 moves outwards through the second pressure spring 122, the water flow overflows from the gap exposed by the thimble 123, thus, the pressure and the exceeded water quantity are released outwards from the overflow port 11 together, so as to ensure that the output water pressure achieves the effect of constant current, secondly, the conical valve core 102 in the flow control valve core 10 is fixed by the chuck 103, the pressure of the water flow is received, the conical valve core 102 moves downwards due to the elasticity of the first pressure spring 101, the conical shape of the conical valve core 102 can be according to the supply pressure, the size of the outlet is adjusted to obtain constant water outlet end flow velocity, finally, water flows out from the water outlet joint 8, the whole safety valve passes through the pressure control valve core 12 and the flow control valve core 10, the two valve cores are complemented to form automatic control, the automatic device is elastic self-control without manual adjustment, when the water supply quantity of the water supply end meets the use requirement, the excessive water quantity can flow out from the overflow port 11 to ensure that the water pressure of the output end achieves the effect of constant pressure and constant current, the overflow type design is mainly suitable for a pressure limiting and flow limiting device used when constipation crowds wash intestines in an enema manner, and the overflow type design also well solves the problem that the gas water heater is easy to generate self-extinguishing when the water outlet quantity.

Compared with the prior art, the utility model has the following benefits: the whole safety valve is controlled automatically through the pressure control valve core 12 and the flow control valve core 10 in a complementary mode, the two valve cores are controlled automatically in a springy mode, manual adjustment is not needed, when the water supply quantity of a water supply end meets the use requirement, the excessive water quantity can flow out of the overflow port 11, the effect that the water pressure of an output end reaches constant pressure and constant flow is ensured, the safety valve is mainly suitable for a pressure limiting and flow limiting device used when intestinal tracts are flushed by constipation people, and the overflow type design also well solves the problem that a gas water heater is easy to generate self-extinguishing when the water yield is too low.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a constant voltage constant current relief valve, includes tee bend valve body (1), its characterized in that: the water supply device is characterized in that a water supply connecting port (2) is arranged at the upper part of the three-way valve body (1), a constant-pressure constant-current output connecting port (3) is arranged at the lower part of the three-way valve body (1), a pressure relief and drainage port (4) is arranged at one side of the three-way valve body (1), inner screw ports (5) are arranged at the inner sides of the water supply connecting port (2) and the constant-pressure constant-current output connecting port (3), an outer screw port (6) is connected to the upper part of the water supply connecting port (2), a first leakage-proof convex net filter core gasket (7) is arranged below the outer screw port (6) inside the water supply connecting port (2), a water outlet connector (8) is connected to the lower part of the constant-pressure output connecting port (3), a second leakage-proof convex net filter core gasket (9) is arranged above the water outlet connector (8) inside the constant-pressure constant-, the outer side of the pressure relief and flow relief port (4) is connected with an overflow port (11), and a pressure control valve core (12) is arranged in the overflow port (11).

2. The constant pressure and constant flow safety valve of claim 1, wherein: the flow control valve core (10) comprises a first pressure spring (101), a conical valve core (102) and a chuck (103), the first pressure spring (101) is installed in the middle of the water outlet joint (8), the conical valve core (102) is sleeved inside the first pressure spring (101), and the chuck (103) is installed above the conical valve core (102).

3. The constant pressure and constant flow safety valve of claim 1, wherein: the pressure control valve core (12) comprises an inner core (121), a second pressure spring (122), an ejector pin (123) and a sealing sleeve (124), the second pressure spring (122) is sleeved in the middle of the inner core (121), the ejector pin (123) is sleeved inside the second pressure spring (122), and the sealing sleeve (124) is sleeved on one side, away from the second pressure spring (122), of the ejector pin (123).

4. The constant pressure and constant flow safety valve of claim 1, wherein: the first leakproof convex net filter core gasket (7) and the second leakproof convex net filter core gasket (9) are both composed of a sealing ring and a filter screen.

5. The constant pressure and constant flow safety valve of claim 1, wherein: the water inlet pressure of the water supply connecting port (2) is between 0.05 and 0.25MPa, the water outlet pressure of the constant-pressure constant-current output connecting port (3) is between 0.04 and 0.05MPa, and the upward spraying height of the water outlet end is between 30 and 40 cm.