CN211501757U

CN211501757U - Valve for preventing backflow

Info

Publication number: CN211501757U
Application number: CN201922094589.7U
Authority: CN
Inventors: 邓康
Original assignee: 黄泽雄
Current assignee: Beijing Huasheng Guoxing Technology Center (L.P.)
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-15
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a valve for preventing backward flow, including the body, the first connecting block of middle-end fixedly connected with at body inner chamber top, the lower extreme fixedly connected with activity pivot of first connecting block, the surface swing joint of activity pivot has the piece of blocking the flow, the bottom fixedly connected with magnet of the piece of blocking the flow, the middle-end fixedly connected with second connecting block of body inner chamber bottom. The utility model discloses set up the activity pivot, the choking piece, magnet and second connecting block, connect the water source for the valve, the left side is the input, the right side is the output, people are through rotating the carousel, the carousel drives the ball valve through the connecting rod and rotates, communicate with each other with the trompil when the through-hole, rivers pass through, rivers are washed away the choking piece from the top of second connecting block through the impact force, form an opening, let rivers pass through, the function that current valve did not possess and prevent the backward flow has been solved, the liquid reflux of output has been leaded to, the problem of polluting the input is carried out.

Description

Valve for preventing backflow

Technical Field

The utility model relates to the technical field of valves, specifically be a prevent valve of backward flow.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be divided into a shut-off valve, a check valve, a regulating valve and the like according to functions of the valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent valve of backward flow to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a valve for preventing backward flow, includes the body, the first connecting block of middle-end fixedly connected with at body inner chamber top, the lower extreme fixedly connected with activity pivot of first connecting block, the surface swing joint of activity pivot has the piece of blocking current, the bottom fixedly connected with magnet of the piece of blocking current, the middle-end fixedly connected with second connecting block of body inner chamber bottom.

Preferably, the connecting rod is inserted into the inner surface of the top of the left end of the tube body, the outer surface of the upper end of the connecting rod is fixedly connected with thread teeth, and the top of the connecting rod is fixedly connected with a turntable.

Preferably, the bottom of the connecting rod is fixedly connected with a ball valve, and the inner surface of the ball valve is provided with a through hole.

Preferably, the top fixedly connected with sealing washer of body left end, the top fixedly connected with mounting panel of body left end, the internal surface card of mounting panel top middle-end is equipped with the screw hole.

Preferably, the left end of the inner cavity of the tube body is fixedly connected with a kit. The internal surface of the external member left and right sides has all seted up the trompil, the internal surface of body left and right sides has all seted up the thread groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model is provided with a movable rotating shaft, a choking block, a magnet and a second connecting block, a water source is connected to the valve, the left side is an input end, the right side is an output end, people rotate the turntable which drives the ball valve to rotate through a connecting rod, when the through hole is communicated with the open hole, the water flow passes through, the choking block is flushed away from the upper part of the second connecting block by the water flow through impact force to form an opening for the water flow to pass through, when the ball valve is closed, the choking block naturally falls down, the magnet adsorbs the upper part of the second connecting block again to seal the opening, when the water flow normally passes through, the backflow condition occurs, the water pressure at the output end is necessarily larger than the water pressure at the input end, the water pressure during the backflow water pressure backflow impacts the choking block to force the choking block to close the opening downwards, the purpose of backflow prevention is achieved, the pollution to the input end.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the through hole structure of the present invention.

In the figure: 1. a pipe body; 2. a thread groove; 3. a seal ring; 4. a threaded hole; 5. thread teeth; 6. a turntable; 7. a connecting rod; 8. mounting a plate; 9. a first connection block; 10. a movable rotating shaft; 11. a flow choking block; 12. a magnet; 13. a second connecting block; 14. a kit; 15. a ball valve; 16. opening a hole; 17. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a body 1, thread groove 2, sealing washer 3, screw hole 4, thread tooth 5, carousel 6, connecting rod 7, mounting panel 8, first connecting block 9, activity pivot 10, choked flow piece 11, magnet 12, second connecting block 13, external member 14, ball valve 15, trompil 16 and through-hole 17 part are the general standard or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-2, a valve for preventing backflow includes a tube 1, and a sleeve 14 is fixedly connected to a left end of an inner cavity of the tube 1. The inner surfaces of the left side and the right side of the external member 14 are respectively provided with an opening 16, the inner surfaces of the left side and the right side of the pipe body 1 are respectively provided with a thread groove 2, the top of the left end of the pipe body 1 is fixedly connected with a sealing ring 3, the top of the left end of the pipe body 1 is fixedly connected with a mounting plate 8, the inner surface of the middle end of the top of the mounting plate 8 is clamped with a thread hole 4, the inner surface of the top of the left end of the pipe body 1 is spliced with a connecting rod 7, the outer surface of the upper end of the connecting rod 7 is fixedly connected with a thread tooth 5, the top of the connecting rod 7 is fixedly connected with a rotary disc 6, the bottom of the connecting rod 7 is fixedly connected with a ball valve 15, the inner surface of the ball valve 15 is provided with a through hole 17, the, the middle end of the bottom of the inner cavity of the tube body 1 is fixedly connected with a second connecting block 13, the middle end is provided with a movable rotating shaft 10, a flow choking block 11, a magnet 12 and the second connecting block 13, the valve is connected with a water source, the left side is an input end, the right side is an output end, people rotate the rotary disc 6, the rotary disc 6 drives the ball valve 15 to rotate through the connecting rod 7, when the through hole 17 is communicated with the opening 16, the water flow passes through, the water flow pushes the block 11 away from the upper part of the second connecting block 13 by impact force, an opening is formed, the water flow passes through, when the ball valve 15 is closed, the choke block 11 naturally falls down, the magnet 12 is attracted to the upper part of the second connecting block 13 again to close the opening, when water flow normally passes through, backflow occurs, the water pressure at the output end is necessarily higher than that at the input end, and the water pressure during backflow water pressure can impact the flow choking block 11 to force the flow choking block 11 to close the opening downwards, so that the purpose of preventing backflow is achieved.

When the valve is used, the movable rotating shaft 10, the flow choking block 11, the magnet 12 and the second connecting block 13 are arranged, a water source is connected to the valve, the left side is an input end, the right side is an output end, people rotate the rotating disc 6, the rotating disc 6 drives the ball valve 15 to rotate through the connecting rod 7, when the through hole 17 is communicated with the open hole 16, water flows pass through, the flow choking block 11 is flushed away from the upper part of the second connecting block 13 through impact force, an opening is formed, water flows pass through, when the ball valve 15 is closed, the flow choking block 11 naturally falls down, the magnet 12 is adsorbed to the upper part of the second connecting block 13 again, the opening is sealed, when the water flows normally pass through, the backflow condition occurs, the water pressure at the output end is certainly larger than that at the input end, the water pressure during backflow water pressure backflow water flows can impact the flow choking block 11 to force the flow choking block 11 to close the, resulting in the problem of the output liquid flowing back and polluting the output end.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent valve of backward flow, includes body (1), its characterized in that: the middle-end fixedly connected with first connecting block (9) at body (1) inner chamber top, the lower extreme fixedly connected with activity pivot (10) of first connecting block (9), the surface swing joint of activity pivot (10) has choked flow piece (11), the bottom fixedly connected with magnet (12) of choked flow piece (11), the middle-end fixedly connected with second connecting block (13) of body (1) inner chamber bottom.

2. A backflow prevention valve as claimed in claim 1, wherein: the inner surface at the top of the left end of the pipe body (1) is spliced with a connecting rod (7), the outer surface at the upper end of the connecting rod (7) is fixedly connected with thread teeth (5), and the top of the connecting rod (7) is fixedly connected with a turntable (6).

3. A backflow prevention valve as claimed in claim 2, wherein: the bottom of connecting rod (7) fixedly connected with ball valve (15), through-hole (17) have been seted up to the internal surface of ball valve (15).

4. A backflow prevention valve as claimed in claim 1, wherein: the top fixedly connected with sealing washer (3) of body (1) left end, the top fixedly connected with mounting panel (8) of body (1) left end, the interior surface card of mounting panel (8) top middle-end is equipped with screw hole (4).

5. A backflow prevention valve as claimed in claim 1, wherein: the left end fixedly connected with external member (14) of body (1) inner chamber, trompil (16) have all been seted up to the internal surface of external member (14) left and right sides, thread groove (2) have all been seted up to the internal surface of body (1) left and right sides.