Slow-opening anti-backflow angle valve

Abstract

The slow-opening backflow prevention angle valve comprises an angle valve body, a shell and a control rod, the angle valve body is of a hollow structure, a water inlet is formed in the bottom of the angle valve body, a water outlet is formed in the side portion of the angle valve body 10, the shell is of a hollow structure, and the bottom of the shell is connected with the top of the angle valve body. The control rod comprises a rod body, a spring, a movable core and a flat washer, one end of the movable core is arranged in an installation cavity of the rod body, the spring is arranged in the installation cavity of the rod body, one end of the spring abuts against the rod body, and the other end of the spring abuts against the movable core. The end, away from the spring, of the movable core is sleeved with the flat washer sealed with the inner wall of the angle valve body.

Description

Technical Field

[0001] The utility model relates to the field of hose fittings, in particular to a slow-opening anti-backflow angle valve for a hose. Background Art

[0002] The slow-opening anti-backflow angle valve has a water inlet and a water outlet. Water flows in from the water inlet and out from the water outlet. In the existing non-anti-backflow angle valve, since there is no device to prevent the water flow at the water outlet from flowing back, the water flow at the water outlet is likely to flow back into the slow-opening anti-backflow angle valve, leaving dirt and breeding bacteria. Summary of the Utility Model

[0003] The utility model solves the problem that the water flow inside the existing non-anti-backflow angle valve is prone to flow back.

[0004] The technical solution adopted by the utility model is: a slow-opening anti-backflow angle valve, including an angle valve body, a housing, and a control rod. The angle valve body is set as a hollow structure. The bottom of the angle valve body is provided with a water inlet, and the side of the angle valve body 10 is provided with a water outlet. The housing is set as a hollow structure. The bottom of the housing is connected to the top of the angle valve body. The control rod includes a rod, a spring, a movable core, and a flat washer. One end of the movable core is arranged in the installation cavity of the rod. A spring is arranged in the installation cavity of the rod. One end of the spring abuts against the rod and the other end abuts against the movable core. A flat washer that seals with the inner wall of the angle valve body is sleeved on the end of the movable core away from the spring.

[0005] Further, two installation grooves are provided in the rod, and first waterproof rubber rings are arranged in the installation grooves.

[0006] Further, an external thread is provided on the outer circumference of the housing, and an internal screw is provided on the inner side of the top of the angle valve body. The external screw and the internal screw are screwed together.

[0007] Further, a second waterproof rubber ring is provided on the outer side of the bottom of the housing.

[0008] Further, an external thread is provided on the outer circumference of the rod, and an internal thread is provided on the inner wall of the housing. The external thread of the rod and the internal thread of the housing are screwed together.

[0009] The beneficial effect of the utility model compared with the prior art is: when the switch is turned on, water flows into its interior from the water inlet of the angle valve body. The water flow pushes the movable core to move upward. At this time, the spring is pushed by the water flow and contracts. Then the water flow flows out from the water outlet on the side of the angle valve body. If the switch is turned off, the contracted spring pushes the movable core to move downward by its own elastic force, so that the flat washer abuts against the inner wall of the angle valve body to complete the seal and prevent backflow. It can prevent the slow-opening anti-backflow angle valve from being installed reversely. The water inlet can only be used as the water inlet, and the water outlet can only be used as the water outlet, enhancing the decontamination ability, sterilizing and inhibiting bacteria, scale inhibition and scale prevention, and low-frequency water. Brief Description of the Drawings

[0010] Figure 1 is the front view of the present utility model;

[0011] Figure 2 is the exploded view of the present utility model;

[0012] Figure 3 is the top view of the present utility model;

[0013] Figure 4 is Figure 3 the A-A sectional view of

[0014] Figure 5 is the exploded view of the control rod of the present utility model;

[0015] Figure 6 is the exploded view of the control rod of the present utility model.

[0016] Reference Numerals: Angle valve body 10; housing 20; control rod 30; water inlet 11; water outlet 12; rod 31; spring 32; movable core 33; flat washer 34; installation cavity 301; installation groove 302; first waterproof rubber ring 303; second waterproof rubber ring 304. Detailed Description of the Preferred Embodiment

[0017] As Figures 1 to 6 described, a slow-opening anti-backflow angle valve includes an angle valve body 10, a housing 20 and a control rod 30. The angle valve body 10 is provided with a hollow structure. The bottom of the angle valve body 10 is provided with a water inlet 11, and the side of the angle valve body 10 is provided with a water outlet 12. The housing 20 is provided with a hollow structure. The bottom of the housing 20 is connected to the top of the angle valve body 10. The control rod 30 includes a rod 31, a spring 32, a movable core 33 and a flat washer 34. One end of the movable core 33 is disposed in the installation cavity 301 of the rod 31. The spring 32 is disposed in the installation cavity 301 of the rod 31. One end of the spring 32 abuts against the rod 31 and the other end abuts against the movable core 33. A flat washer 34 that seals against the inner wall of the angle valve body is sleeved on the end of the movable core 33 away from the spring 32.

[0018] When in use, turn on the switch. Water flows into the interior of the angle valve body 10 from the water inlet 11. The water flow pushes the movable core 33 upward. At this time, the spring 32 is pushed by the water flow and contracts. Then the water flows outwards from the water outlet 12 on the side of the angle valve body 10. If the switch is turned off, the contracted spring 32 pushes the movable core 33 downward by its own elastic force, so that the flat washer 34 abuts against the inner wall of the angle valve body 10 to complete sealing and prevent backflow. It can prevent the slow-opening anti-backflow angle valve from being installed reversely. The water inlet 11 can only be used as the water inlet, and the water outlet 12 can only be used as the water outlet. It can enhance detergency, sterilize and inhibit bacteria, scale inhibition and scale inhibition, and produce low-frequency water.

[0019] There are two installation grooves 302 in the rod 31, and first waterproof rubber rings 303 are provided in the installation grooves 302. When the rod 31 is arranged in the housing 20, the first waterproof rubber rings 303 can play a sealing role.

[0020] The outer periphery of the housing 20 is provided with an external thread, and the inner side of the top of the angle valve body 10 is provided with an internal screw. The external screw and the internal screw are screwed together.

[0021] A second waterproof rubber ring 304 is provided on the outer side of the bottom of the housing 20. When the housing 20 is screwed to the angle valve body 10, the second waterproof rubber ring 304 can play a sealing role.

[0022] The outer periphery of the rod 31 is provided with an external thread, and the inner wall of the housing 20 is provided with an internal thread. The external thread of the rod 31 is screwed to the internal thread of the housing 20.

Claims

1. A slow-opening anti-backflow angle valve, characterized in that: The invention comprises an angle valve body (10), a shell (20) and a control rod (30), wherein the angle valve body (10) is a hollow structure, a water inlet (11) is provided at the bottom of the angle valve body (10), and a water outlet (12) is provided at the side of the angle valve body (10), the shell (20) is a hollow structure, the bottom of the shell (20) is connected to the top of the angle valve body (10), and the control rod (30) comprises a rod (31), a spring (32), a movable core (33), and a plurality of movable cores (34). 3) and a flat washer (34), one end of the movable core (33) is arranged in the mounting cavity (301) of the rod (31), the mounting cavity (301) of the rod (31) is provided with the spring (32), one end of the spring (32) is in contact with the rod (31) and the other end is in contact with the movable core (33), and one end of the movable core (33) away from the spring (32) is sleeved with the flat washer (34) which is sealed with the inner wall of the angle valve body.

2. The slow-opening anti-backflow angle valve according to claim 1 is characterized in that: The rod (31) is provided with two installation grooves (302), and each of the installation grooves (302) is provided with a first waterproof rubber ring (303).

3. The slow-opening anti-backflow angle valve according to claim 2 is characterized in that: The outer periphery of the housing (20) is provided with an external thread, and the inner side of the top of the angle valve body (10) is provided with an internal screw, and the external screw and the internal screw are threadedly connected.

4. The slow-opening anti-backflow angle valve according to claim 3 is characterized in that: A second waterproof rubber ring (304) is provided on the outer side of the bottom of the housing (20).

5. The slow-opening anti-backflow angle valve according to claim 4 is characterized in that: The outer circumference of the rod (31) is provided with an external thread, the inner wall of the outer shell (20) is provided with an internal thread, and the external thread of the rod (31) is threadedly connected with the internal thread of the outer shell (20).

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