Air check valve with water injection closure function

Abstract

The air check valve comprises a valve body, a rubber ring and an air check ball, the valve body is provided with an inlet, an outlet and a transverse channel, the inlet and the outlet are communicated through the transverse channel, the inlet is connected with a water injection pipe in an inserted mode, a throttling area is arranged at the position of the outlet, the outlet is sleeved with the rubber ring, and the air check ball is arranged on the rubber ring. A throttling opening is downwards formed in the portion, located above the outlet, in the throttling area, and an air check ball is movably arranged in the throttling area. When the throttling opening and the air non-return ball are in the contact position, the air non-return ball seals the throttling opening through a spherical surface. According to the air check valve, the upward action of the air check ball in the water replenishing process is utilized, the air check ball is pushed to move upwards, the throttling opening is adjusted and closed, and therefore the air check valve adapts to different water replenishing pressures.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to an air check valve with water injection and flow cutoff. Background Art

[0002] At present, the automatic control softening multi-way valve in the water treatment equipment in the water treatment field, the regeneration process mostly adopts the negative pressure salt absorption method of the Venturi ejector. This salt absorption method is simple and reliable. The two processes of salt absorption and water replenishment are completed through the same salt absorption pipe, and the two-way water flow is not easy to cause blockage. The air check valve is installed at the bottom of the salt absorption pipe at the bottom of the salt well in the salt box. Its function is to prevent the continued inhalation of air into the equipment after the salt water is absorbed. However, the water replenishment process has high and low pressure differences at the site of the softening water equipment. The water replenishment speed and water replenishment amount are difficult to control by time. If the water replenishment is too fast, the salt well water will not have time to diffuse and overflow. Utility Model Content

[0003] The utility model provides an air check valve with water injection and flow cutoff function, which is used to solve the problems raised by the background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an air check valve with water injection cutoff, comprising a valve body, a rubber ring, and an air check ball, the valve body being provided with an inlet, an outlet, and a transverse channel, the inlet and the outlet being connected by a transverse channel, the inlet being plugged and connected to a water injection pipe, a throttling area being provided at the outlet position, a rubber ring being provided on the outside of the throttling area, a throttling port being provided downwardly above the outlet, and an air check ball being movably provided on the throttling area; when the throttling port and the air check ball are in contact position, the air check ball seals the throttling port with the ball face.

[0005] Preferably, one end of the transverse channel is in a closed state, and the other end is connected to a sealing plug.

[0006] Preferably, the height of the inlet is higher than the height of the outlet.

[0007] Preferably, a throttling zone is provided at the outlet position, comprising: a hollow cylinder is fixedly provided at the outer ring of the outlet position outside the valve body, and a throttling zone is formed inside the hollow cylinder.

[0008] Preferably, a throttling port is provided downwardly above the outlet inside the throttling zone, comprising: a sealing cover is threadedly connected to the upper end of the hollow cylinder, a throttling port is provided at the center of the sealing cover, and one end of the throttling port located in the throttling zone is a conical surface, which is used for contacting and sealing with the surface of the air check ball.

[0009] Preferably, a sealing ring is provided at the position where the sealing cover is connected to the hollow cylinder.

[0010] Preferably, a second conical surface is provided on the side of the rubber ring that contacts the air check ball upwards, and the second conical surface is used for contacting and sealing with the surface of the air check ball.

[0011] Preferably, a limited flow groove is radially provided at the position where the throttle port contacts the air check ball.

[0012] Beneficial effects of the utility model:

[0013] The utility model air check valve comprises a valve body, a rubber ring and an air check ball, wherein the valve body is provided with an inlet, an outlet and a transverse channel, the inlet and the outlet are communicated with each other by means of the transverse channel, the inlet is plugged and connected with a water injection pipe, a throttling area is provided at the outlet, a rubber ring is sleeved on the outer part of the outlet, a throttling port is provided inside the throttling area and is located above the outlet and faces downward, and an air check ball is movably provided in the throttling area; when the throttling port and the air check ball are in a contact position, the air check ball seals the throttling port with a ball face, the air check ball acts upward in the water replenishment process, and the air check ball is pushed to move upward, thereby adjusting and closing the throttling port, thereby adapting to different water replenishment pressures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall diagram of an air check valve with water injection and flow cutoff proposed by the utility model;

[0015] Figure 2 It is a structural diagram of a valve body of an air check valve with water injection and flow cutoff proposed by the utility model;

[0016] Figure 3 This is a structural diagram of a blocking cover of an air check valve with water injection and flow cutoff proposed by the utility model;

[0017] Figure 4 It is a schematic diagram of a salt water absorbing air check valve with water injection and flow cutoff proposed by the utility model;

[0018] Figure 5 The utility model discloses a schematic diagram of a brine absorbing air check valve with water injection and flow cutoff.

[0019] In the figure: valve body 1, rubber ring 2, air check ball 3, blocking cover 4, sealing ring 5, inlet 101, outlet 102, transverse channel 103, throttling area 104, hollow cylinder 106, injection, flow limiting groove 401, throttling port 402, water pipe 6, sealing plug 7. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. For the purpose of clarity, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not necessary. In addition, for the purpose of simplifying the illustration, some conventional structures and components will be depicted in a simple schematic manner in the illustration.

[0021] like Figure 1-5 As shown, the utility model is an air check valve with water injection and shutoff, comprising a valve body 1, a rubber ring 2, and an air check ball 3. The valve body 1 is provided with an inlet 101, an outlet 102, and a transverse channel 103. The inlet 101 and the outlet 102 are connected by the transverse channel 103. The inlet 101 is plugged and connected to the water injection pipe 6. A throttling area 104 is provided at the outlet 102. The rubber ring 2 is sleeved on the outside of the outlet 102. A throttling port 402 is opened downward above the outlet 102 in the throttling area 104. The throttling port 402 is movably provided with an air check ball 3. When the throttling port 402 and the air check ball 3 are in contact, the air check ball 3 seals the throttling port 402 with the ball surface.

[0022] Furthermore, one end of the transverse channel 103 is in a closed state, and the other end is connected to a sealing plug 7. The sealing plug 7 is used to seal the other end of the transverse channel 103.

[0023] Furthermore, the height of the inlet 101 is higher than the height of the outlet 102 .

[0024] Furthermore, a throttling area 104 is provided at the outlet 102 , including: a hollow cylinder 106 is fixedly provided on the outer ring of the outlet 102 outside the valve body 1 , and the throttling area 104 is formed inside the hollow cylinder 106 .

[0025] Furthermore, a throttling port 402 is provided downwardly above the outlet 102 inside the throttling zone 104, comprising: a sealing cover 4 is threadedly connected to the upper end of the hollow cylinder 106, a throttling port 402 is provided at the center of the sealing cover 4, and one end of the throttling port 402 located in the throttling zone 104 is a conical surface, which is used for contacting and sealing with the surface of the air check ball 3.

[0026] Furthermore, a sealing ring 5 is provided at the position where the blocking cover 4 is connected to the hollow cylinder 106 .

[0027] Furthermore, the side of the rubber ring 2 that contacts the air check ball 3 upward is provided with a second conical surface, and the second conical surface is used for contacting and sealing with the surface of the air check ball 3. The density of the air check ball 3 is less than that of salt water.

[0028] Furthermore, a limited flow groove 401 is radially provided at a position where the throttle port 402 contacts the air check ball 3 .

[0029] Embodiment: A rubber ring 2 is installed at the bottom of the valve body 1. Figure 4 When the salt water is sucked, the air check ball 3 with a density less than that of the salt water moves with the salt water to the position of the rubber ring 2. At this time, the spherical surface of the air check ball 3 fits with the conical surface of the rubber ring 2, and the air is stopped. Figure 5 In the water replenishment process, the air check ball 3 rises with the water surface and the water flow and fits with the throttle port 402, the throttle port 402 is closed, and the water flows out from the flow limiting groove 401, thereby realizing the water injection flow limiting effect.

[0030] The above description is only a specific implementation of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the scope of the claims of the utility model.

Claims

1. An air check valve with water injection and shutoff, characterized in that: The invention comprises a valve body (1), a rubber ring (2), and an air check ball (3); the valve body (1) is provided with an inlet (101), an outlet (102), and a transverse channel (103); the inlet (101) and the outlet (102) are connected by the transverse channel (103); the inlet (101) is plugged and connected to a water injection pipe (6); a throttling area (104) is provided at the outlet (102); a rubber ring (2) is sleeved on the outside of the outlet (102); a throttling port (402) is opened downwardly above the outlet (102) in the throttling area (104); and an air check ball (3) is movably provided in the throttling area (104); when the throttling port (402) and the air check ball (3) are in contact, the air check ball (3) seals the throttling port (402) with its ball surface.

2. The air check valve with water injection and shutoff function according to claim 1 is characterized in that: One end of the transverse channel (103) is in a closed state, and the other end is connected to a sealing plug (7).

3. The air check valve with water injection and shutoff function according to claim 1, characterized in that: The height of the inlet (101) is higher than the height of the outlet (102).

4. The air check valve with water injection and shutoff function according to claim 1, characterized in that: A throttling area (104) is provided at the outlet (102), comprising: a hollow cylinder (106) is fixedly provided on the outer ring of the outlet (102) outside the valve body (1), and a throttling area (104) is formed inside the hollow cylinder (106).

5. The air check valve with water injection and shutoff function according to claim 4 is characterized in that: A throttling port (402) is provided downwardly inside the throttling area (104) and is located above the outlet (102), and comprises: a sealing cover (4) is threadedly connected to the upper end of the hollow cylinder (106); a throttling port (402) is provided at the center of the sealing cover (4); and one end of the throttling port (402) located in the throttling area (104) is a conical surface, and the conical surface is used for contacting and sealing with the surface of the air check ball (3).

6. The air check valve with water injection and shutoff function according to claim 5, characterized in that: A sealing ring (5) is provided at the position where the blocking cover (4) is connected to the hollow cylinder (106).

7. The air check valve with water injection and shutoff function according to claim 1, characterized in that: The side of the rubber ring (2) that contacts the air check ball (3) upward is provided with a second conical surface, and the second conical surface is used for contacting and sealing with the surface of the air check ball (3).

8. The air check valve with water injection and shutoff function according to claim 1, characterized in that: A limited flow groove (401) is radially provided at a position where the throttle port (402) contacts the air check ball (3).

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