CN201420897Y - Foam type constant flow water saving bubbler - Google Patents

Abstract

The utility model discloses a foam type constant-flow water-saving bubbler, which comprises a gasket, a filter screen, an upper inner shell, an O-ring, a middle inner shell, a lower inner shell, an outer shell, a sliding rod, a spring, Spring 2 and O-ring 2 realize the anti-drip function by the elastic force of spring 1 against the slide bar, and an intermediate water passage is added in the middle inner shell, and the middle water passage is composed of slide bar, spring 1, spring Two and O-ring two to control the water passing area, so that when the water pressure is low, the middle bottom outlet channel is opened for flow compensation, when the water pressure increases, the middle lower outlet channel becomes smaller, and when the water pressure increases to the set pressure, the middle bottom outlet is closed aisle. Compared with the prior art, the utility model is suitable for use under the condition of low water pressure, and also has the anti-drip function.

Description

Foam type constant flow water saving bubbler

technical field

The utility model relates to the field of plumbing and sanitary ware, in particular to a constant-flow water-saving bubbler.

Background technique

Bubblers are generally installed at the faucet outlet through threaded connections. There are two types: clear flow type with transparent water outlet and foam type with foam water outlet. Traditional bubblers are not equipped with flow control devices, and water resources are wasted during actual use. It does not meet the water-saving requirements, and water splashes may occur during use due to too much flow. The structure of the existing common foam-type constant-flow water-saving bubbler is shown in Figure 1, including gasket 1, filter screen 2, upper inner shell 3, O-ring 8, middle inner shell 9, filter screen 10, filter screen 11. The lower inner shell 12 and the outer shell 13, the upper inner shell 3, the middle inner shell 9 and the lower inner shell 12 are connected in sequence correspondingly, the filter screen 2 is set on the top opening of the upper inner shell 3, and the gasket 1 is sleeved on the Outside the upper inner shell 3, the outer shell 13 is sleeved outside the middle inner shell 9 and the lower inner shell 12. The middle inner shell 9 is provided with an annular sewer channel 91, and the O-ring 8 is set in the annular sewer channel 91. The filter screen 10 is set in the middle and lower part of the lower inner shell 12, the filter screen 11 is set in the lower part of the lower inner shell 12, the side wall of the lower inner shell 12 has small holes for air to enter, and the lower inner shell 12 and the outer shell There is a certain gap between 13, the air enters the inner cavity of the lower inner shell 12 through the small hole on the lower inner shell 12 through this gap, and the inner cavity of the lower inner shell 12 is mixed with the water flow, and the pressure is reduced by the filter screen 10, Make the effluent appear soft and bubbly columnar effluent.

When in use, the water flows down from the filter screen 2, flows into the middle and inner shell 9, flows out from the gap between the annular sewer channel 91 and the O-ring 8, and reduces the water pressure through the filter screen 10, making the water more soft, and finally filtered Net 11 flows out. When the water pressure increases, the O-ring 8 deforms, making the gap between the annular sewer channel 91 and the O-ring 8 smaller, and the water outlet flow becomes smaller, thereby maintaining a constant flow rate under higher water pressure, but this Constant flow water-saving bubbler, the flow rate becomes significantly smaller under low water pressure, so it is not suitable for use under low water pressure conditions. Moreover, when the water pressure is low to the normal range (such as dripping), water will still flow out from the water outlet, which does not have the anti-dripping function.

Utility model content

The purpose of the utility model is to provide a foam-type constant-flow water-saving bubbler suitable for use under low water pressure conditions and having an anti-drip function.

The technical scheme of the utility model is as follows: a foam type constant flow water-saving bubbler, including a gasket, a filter screen, an upper inner shell, an O-ring, a middle inner shell, a lower inner shell and an outer shell, and the above-mentioned upper inner shell , the middle inner shell and the lower inner shell are connected correspondingly in sequence, the above-mentioned filter screen cover is set on the top opening of the above-mentioned upper inner shell, the above-mentioned gasket is set outside the above-mentioned upper inner shell, and the above-mentioned outer shell is set on the above-mentioned middle inner shell and Outside the lower inner shell, there is an annular sewer channel inside the middle inner shell, and a set of O-rings is set in the annular sewer channel. Small holes for air to enter are opened on the side wall of the lower inner shell, and There is a certain gap between the above-mentioned lower inner shell and the above-mentioned outer shell; it also includes a sliding rod, spring one, spring two and O-ring two, the top of the above-mentioned sliding rod is installed in the opening of the above-mentioned upper inner shell, and the above-mentioned sliding rod and The openings of the upper inner shell are sealed by the above-mentioned O-ring 2 sleeved on the above-mentioned sliding rod. The middle part of the inner shell is provided with a middle sewer channel inside the annular sewer channel. The bottom of the above-mentioned middle inner shell is provided with a A through hole for the sliding rod to pass through. The above sliding rod is provided with an upwardly recessed annular groove. The above spring is set on the above sliding rod and stretched between the above annular groove and the inner shell Between the bottom surfaces, the above-mentioned spring two is sheathed on the above-mentioned sliding rod and its lower end is against the inner bottom surface of the above-mentioned middle inner shell, and the elastic force of the above-mentioned spring two is greater than that of the above-mentioned spring one.

After adopting the above scheme, when the water pressure of the foam-type constant-flow water-saving bubbler of the present utility model is lower than the set valve opening pressure, the slide bar remains motionless under the elastic force of spring one, and the bubbler is in a closed state, which can Effectively prevent dripping; when the water pressure is greater than the set valve opening pressure, the slide bar slides down, and the annular drain channel of the middle inner shell and the middle drain channel are both opened. Due to the large water passing area, the water passing flow rate is low even under low pressure. It can meet the user's requirements; when the water pressure increases, once the spring is compressed, the slide bar continues to slide downwards, and the water passing area of the middle part of the inner casing decreases continuously. When the water pressure increases to the set pressure, The slide bar is in contact with the inner bottom surface of the middle inner shell. At this time, the middle drain channel of the middle shell is closed, and the water flow can only pass through the annular drain channel of the middle inner shell. When the water pressure increases, the O-ring deforms under pressure. The gap between the O-ring 1 and the annular sewer channel becomes smaller, and the water passing area decreases, so as to achieve the constant flow effect that the pressure increases and the flow rate can be controlled within a certain range. Compared with the prior art, the utility model is suitable for use under the condition of low water pressure, and also has the anti-drip function.

Description of drawings

Fig. 1 is the structural representation of conventional foam-type constant-flow water-saving bubbler.

Fig. 2 is a longitudinal sectional view of the utility model.

Fig. 3 is a three-dimensional exploded view of the utility model.

Detailed ways

The foam-type constant-flow water-saving bubbler of the present utility model, as shown in Fig. , O-ring 8, middle inner shell 9, filter screen 10, filter screen 11, lower inner shell 12 and outer shell 13. The upper inner shell 3, the middle inner shell 9 and the lower inner shell 12 are connected in sequence correspondingly, the filter screen 2 is set on the top opening of the upper inner shell 3, the gasket 1 is set outside the upper inner shell 3, and the outer shell 13 is set Outside the middle inner shell 12 and the lower inner shell 13, the middle inner shell 9 is provided with an annular sewer channel 91, and the O-ring 8 is sleeved in this annular sewer channel 91; the top of the sliding rod 5 is passed through the upper inner shell 3 In the opening of the upper inner casing 3, the sliding rod 5 and the opening of the upper inner casing 3 are sealed by the O-ring 4 sleeved on the sliding rod 5, and the middle inner casing 9 is provided with a middle part of the lower water passage 92 within the annular lower water passage 91, The middle sewer channel 92 is in the shape of a ring at the bottom of the middle inner shell 9, and the bottom of the middle inner shell 9 is provided with a through hole for the slide bar 5 to pass through, and the slide bar 5 is provided with an upwardly recessed annular groove 51 , the spring 6 is sleeved on the slide bar 5 and stretched between the annular groove 51 and the inner bottom surface of the middle inner shell 9, the spring 7 is sleeved on the slide bar 5 and the lower end is against the inner bottom surface of the middle inner shell 9 , and the elastic force of the spring 7 is greater than that of the spring 6, the filter screen 10 is set in the middle and lower part of the lower inner shell 12, and the filter screen 11 is set in the lower part of the lower inner shell 12; the side wall of the lower inner shell 12 is provided with a The small hole 121 for air to enter, the outer wall of the lower inner shell 12 is provided with a vertical strip-shaped protrusion 122, so that there is a certain gap between the lower inner shell 12 and the outer shell 13, and the air passes through this gap from the lower inner shell 12. The small hole 121 enters the inner cavity of the lower inner shell 12, where it is mixed with the water flow, and the pressure is reduced by the filter screen 10, so that the outlet water presents a soft multi-bubble columnar water outlet.

When in use, the water flow acts on the sliding rod 5. When the water pressure is lower than the set valve opening pressure (0.01MPa), the sliding rod 5 remains motionless under the elastic force of the spring 6, and the bubbler is in a closed state, which can effectively prevent dripping . When the water pressure is greater than the set valve opening pressure (0.01MPa), the slide bar 5 slides downward, and when the slide bar 5 touches the spring 7, it is positioned (the spring force of the spring 7 is greater than that of the spring 6). Both the annular sewer channel 91 and the central sewer channel 92 of the shell 9 are opened, and because of the larger water flow area, the water flow rate can meet the requirements of users even under low pressure conditions. When the water pressure continues to increase, the spring 7 is compressed, and the slide bar 5 continues to slide downwards, and the water passing area of the middle water channel 92 of the middle inner shell 9 is continuously reduced. When the water pressure increases to the set pressure (0.3Mpa), the slide bar The lower bottom surface of the annular groove 51 of 5 is in contact with the inner bottom surface of the middle casing 9, and the lower bottom surface of the annular groove 51 blocks the ring-shaped channel at the bottom of the middle inner casing 9, and the water flow can only flow from the annular drainage channel of the middle inner casing 9. 91, when the water pressure increases, the O-ring 8 is deformed under pressure, and the O-ring 8 is deformed under pressure, so that the gap between the O-ring 8 and the annular sewer channel 91 becomes smaller, and the water passing area decreases. In order to achieve the effect that the pressure fluctuates and the flow rate can be controlled within a certain range.

Claims (1)

1. Foam type constant flow water-saving bubbler, including gasket, filter screen, upper inner shell, O-ring 1, middle inner shell, lower inner shell and outer shell, the above upper inner shell, middle inner shell and lower inner shell The above-mentioned filter screen cover is arranged on the top opening of the above-mentioned upper inner casing, the above-mentioned gasket is sleeved on the outside of the above-mentioned upper inner casing, the above-mentioned outer casing is sleeved on the outside of the above-mentioned middle inner casing and the above-mentioned lower inner casing, and the above-mentioned middle The inner shell is provided with an annular sewer channel, and the above-mentioned O-ring is set in this annular sewer channel, and the side wall of the lower inner shell is provided with a small hole for air to enter, and the lower inner shell and the outer shell There is a certain gap between them; it is characterized in that it also includes a sliding rod, spring one, spring two and O-ring two, the top of the above-mentioned sliding rod is set in the opening of the above-mentioned upper inner shell, and the above-mentioned sliding rod and the above-mentioned upper inner shell The openings are sealed by the above-mentioned O-ring 2 sleeved on the above-mentioned sliding rod. The middle part of the inner casing is provided with a middle part of the sewage channel within the above-mentioned annular sewage channel, and the bottom of the above-mentioned middle inner casing is provided with a sliding rod The through hole pierced in it, the above-mentioned sliding rod is provided with an upwardly concave annular groove, the above-mentioned spring is set on the above-mentioned sliding rod and stretched between the above-mentioned annular groove and the inner bottom surface of the above-mentioned middle inner shell, The second spring is sheathed on the sliding rod and the lower end is against the inner bottom surface of the inner shell, and the elastic force of the second spring is greater than that of the first spring.

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