CN212226092U

CN212226092U - Water supply equipment with backflow prevention function

Info

Publication number: CN212226092U
Application number: CN202020872675.6U
Authority: CN
Inventors: 吕亚军; 吕夏娥; 魏成涛; 胡淑敏; 汤升华; 吕增东; 王刚; 喻剑飞; 李晓燕; 吕淼淼
Original assignee: Sino American AITI Pump Group Co Ltd
Current assignee: Sino American AITI Pump Group Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-12-25
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a water supply equipment with refluence prevents function relates to water supply equipment technical field. The method specifically comprises the following steps: the water supply device comprises a water supply pipe, wherein the water supply pipe comprises a hollow water inlet pipe and a hollow water outlet pipe, one end of the water inlet pipe is hinged with a baffle through a rotating shaft, the area of the baffle is larger than that of the end part of the water inlet pipe, and the area of the hollow shape in the water outlet pipe is larger than that of the baffle; the water inlet pipe is connected with the baffle plate in an interference mode. The utility model discloses a water supply equipment normal water flow can only flow in the outlet pipe through the inlet tube, and can not flow backwards to the inlet tube through the outlet pipe, can effectively prevent the equipment trouble problem that arouses because rivers flow backwards.

Description

Water supply equipment with backflow prevention function

Technical Field

The utility model relates to a water supply equipment technical field especially relates to a water supply equipment with refluence prevents function.

Background

The water supply equipment often has reverse backflow in the starting process, so that the equipment is damaged, and loss is caused. The means commonly used at present is for installing the anti-backflow valve or setting up anti-backflow detection device, is as patent number: ZL 201610296470.6's patent provides a water pump monitoring devices that prevents flowing backwards for send alarm signal when monitoring the motor reversal, thereby prevent that the reversal rivers from flowing backwards and damaging equipment, however, this detection device needs artifical braking motor and technology are relatively complicated. The patent numbers are: ZL 201310230924.6's patent discloses a backflow prevention valve, and this backflow valve utilizes self gravity and rivers thrust to realize opening and closing of valve equally, because the valve plate is vertical design and the valve is connected through seal ring between the valve and the valve plate. There are places where this structure can be improved: (1) the valve plate is vertically designed, the valve is difficult to be tightly connected with the sealing ring through the self gravity action, namely, a gap exists at the joint of the valve and the sealing ring, and water flow still can be immersed into the gap to flow back when the valve is used; (2) the diameters of the two ends of the valve are the same, when the water flow is too small, the valve is difficult to push open, so that the flow resistance of the water flow at the valve is too large, and the phenomenon of flow accumulation or direct backflow without passing through the valve is formed; (3) the valve body integral type design causes the change of internals inconvenient.

Therefore, in order to solve the above technical problem, a new technical solution needs to be proposed to solve the problem. In particular to a water supply device with a simple structure and a backflow prevention function.

Disclosure of Invention

The utility model discloses a solve the more complicated and prevent the not good technical problem of refluence effect and forward flow effect of the water supply installation technology that flows backwards that has now on the market, provide a water supply installation with refluence prevention function.

The following technical scheme is provided for achieving the purpose: a water supply device with backflow prevention function comprises a water supply pipe, wherein the water supply pipe comprises a hollow water inlet pipe and a hollow water outlet pipe, one end of the water inlet pipe is hinged with a baffle through a rotating shaft, the area of the baffle is larger than that of the end part of the water inlet pipe, and the area of the hollow shape in the water outlet pipe is larger than that of the baffle; the water inlet pipe is connected with the baffle plate in an interference mode.

Preferably, the inlet tube includes inlet tube upper end and inlet tube lower extreme with the link of baffle, the pivot sets up in the inlet tube upper end, the inlet tube lower extreme makes the terminal surface of inlet tube be the incision column structure of tilting than the inlet tube upper end is long.

Preferably, a flange is further arranged at the joint of the water inlet pipe and the water outlet pipe, and a crack is arranged on the flange.

Preferably, the flange is provided with a flange thread through hole, and the connecting end surface of the water outlet pipe and the water inlet pipe is provided with a second thread through hole matched with the flange thread through hole; the flange is enclosed outside the water inlet pipe and is connected with the water outlet pipe through a screw.

Preferably, a sealing washer is further arranged at the joint of the flange and the water outlet pipe, a crack and a third threaded through hole are formed in the sealing washer, and the third threaded through hole corresponds to the flange threaded through hole and the second threaded through hole.

Preferably, the water inlet pipe is further provided with a first ridge, the water outlet pipe is provided with a second ridge, the diameter of the first ridge is larger than that of the water inlet pipe, and the diameter of the second ridge is larger than that of the water outlet pipe.

Preferably, the water inlet pipe is connected with the end face of the water outlet pipe at an eccentric position.

The utility model has the advantages that: through being connected with the baffle through the pivot on the inlet tube, thereby the baffle can be under the impact force effect of rivers, thereby dashes open the baffle and makes inlet tube and outlet pipe intercommunication, makes rivers can circulate when rivers flow in from the inlet tube end. Simultaneously when the inlet tube does not have rivers inflow or rivers through outlet pipe end inflow because the weight effect of baffle makes the baffle pressfitting on the terminal surface of inlet tube, rivers from outlet pipe end inflow can form a thrust to the baffle, this thrust can be with the baffle pressfitting on the terminal surface of inlet tube, thereby make rivers can not get into the inlet tube through the outlet pipe, discharge is big more, thrust is big more, the baffle is connected inseparabler with the link of inlet tube more, thereby rivers can not follow the outlet pipe and get into the inlet tube more, the backward flow has effectively been prevented.

The water inlet pipe is designed into a slender hollow structure, and even if the water flow flowing into the water inlet pipe is small, the flow speed of the water flow can also be increased to form certain thrust on the baffle plate, so that the device can be applied to even small water flow.

The water inlet pipe and the water outlet pipe are designed into a split structure, so that when parts in the device are damaged, the parts are convenient to disassemble and replace.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure of the present invention.

Fig. 3 is a schematic view of the structure of the components of the present invention.

Fig. 4 is a schematic structural view of the water inlet pipe of the present invention.

Wherein:

1. a water inlet pipe; 11. a first ridge; 12. the upper end of the water inlet pipe; 13. the lower end of the water inlet pipe; 2. a water outlet pipe; 21. a second ridge; 22. a second threaded through hole; 3. a flange; 31. a flange thread through hole; 32. cracking; 4. a sealing gasket; 41. a third threaded through hole; 5. a rotating shaft; 6. and a baffle plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either 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.

As shown in fig. 1 and 2, a water supply device with backflow prevention function comprises a water supply pipe, wherein the water supply pipe comprises a hollow water inlet pipe 1 and a hollow water outlet pipe 2, one end of the water inlet pipe 1 is hinged with a baffle 6 through a rotating shaft 5, the area of the baffle 6 is larger than that of the end part of the water inlet pipe 1, and the area of the hollow water in the water outlet pipe 2 is larger than that of the baffle 6; the connecting end of the water inlet pipe 1 and the baffle 6 extends into the water outlet pipe 2, and the water inlet pipe 1 is connected with the water outlet pipe 2 in an interference manner. The pivot 5 can adopt conventional hinge device, and wherein inlet tube 1 is with 6 connected modes of baffle be: the connecting end of the water inlet pipe 1 and the baffle 6 comprises an upper end 12 of the water inlet pipe and a lower end 13 of the water inlet pipe, the rotating shaft 5 is arranged at the upper end 12 of the water inlet pipe, the lower end 13 of the water inlet pipe is longer than the upper end 12 of the water inlet pipe so that the end surface of the water inlet pipe 1 is of a tilting notch-shaped structure, and the baffle 6 is not in a vertical state when being arranged in the tangent plane, so that the baffle is pressed on the end surface of the water inlet pipe due to the gravity action of. The eccentric position department of

inlet tube

1 and 2 terminal surfaces of outlet pipe is connected, helps reducing the gap between

baffle

6 and 2 pipe walls of outlet pipe to do not have great potential energy to convert kinetic energy into when rivers flow in, thereby can not lead to the fact great impact force to 2 pipe walls of outlet pipe, can prolong the life-span of outlet pipe 2. The water inlet pipe 1 is of a slender structure, and the diameter of the water outlet pipe 2 is larger than that of the water inlet pipe 1. The baffle plate is rotatably connected with the end surface of the water inlet pipe extending into the water outlet pipe 2 through the rotating shaft, so that the baffle plate can rotate up and down on the end surface of the water inlet pipe to form an opened or closed channel, as shown in fig. 4. Meanwhile, the area of the baffle is larger than that of the end face of the water inlet pipe, and the baffle can completely cover the end face of the water inlet pipe, so that a one-way valve which is opened and closed is effectively formed. The water inlet pipe and the water outlet pipe are designed into an interference connection structure so as to prevent water flow from leaking out of the connection position.

As shown in fig. 3, in order to increase the sealing performance of the whole device, a flange 3 is further provided at the connection position of the water inlet pipe 1 and the water outlet pipe 2, and a slit 32 is provided on the flange 3. A flange thread through hole 31 is arranged on the flange 3, and a second thread through hole 22 matched with the flange thread through hole 31 is arranged on the connecting end surface of the water outlet pipe 2 and the water inlet pipe 1; the flange 3 surrounds the water inlet pipe 1 and is connected with the water outlet pipe 2 through screws. The joint of the flange 3 and the water outlet pipe 2 is also provided with a sealing washer 4, the sealing washer 4 is provided with a crack and a third threaded through hole 41, and the third threaded through hole 41 corresponds to the flange threaded through hole 31 and the second threaded through hole 22. When the water inlet pipe is installed, the water inlet pipe 1 penetrates through the water outlet pipe 2, one end of the water inlet pipe 1 extends into the water outlet pipe 2, the other end of the water inlet pipe 1 extends out of the end face of the water outlet pipe 2, the sealing washer is enclosed at the extending end of the water inlet pipe 1 through a crack, the flange 3 is installed in the same method, and the flange 3, the sealing washer 4 and the water outlet pipe 2 are fixedly connected through screws.

As shown in fig. 1 to 3, the water inlet pipe 1 is further provided with a first ridge 11, the water outlet pipe 2 is provided with a second ridge 21, the diameter of the first ridge 11 is larger than that of the water inlet pipe 1, and the diameter of the second ridge 21 is larger than that of the water outlet pipe 2. The ridge end of the water inlet pipe can be connected with a water source or a hose of a pressure pump; the ridge end of the water outlet pipe is connected with a required hose, and water flow is conveyed to a required place through the hose. The first ridge and the second ridge have the function of increasing the connection tightness of the water inlet pipe, the water outlet pipe and the hose, and the first ridge and the second ridge cannot fall off when in use.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a water supply equipment with refluence prevents function, includes the delivery pipe, the delivery pipe is including inlet tube (1) and outlet pipe (2) that are the cavity form, its characterized in that: one end of the water inlet pipe (1) is hinged with a baffle (6) through a rotating shaft (5), the area of the baffle (6) is larger than that of the end part of the water inlet pipe (1), and the area of the hollow shape in the water outlet pipe (2) is larger than that of the baffle (6); the water inlet pipe is characterized in that the connecting end of the water inlet pipe (1) and the baffle (6) extends into the water outlet pipe (2), and the water inlet pipe (1) is in interference connection with the water outlet pipe (2).

2. A water supply apparatus having a reverse flow preventing function as claimed in claim 1, wherein: the connecting end of inlet tube (1) and baffle (6) includes inlet tube upper end (12) and inlet tube lower extreme (13), pivot (5) set up in inlet tube upper end (12), inlet tube lower extreme (13) are longer than inlet tube upper end (12) and make the terminal surface of inlet tube (1) be the incision column structure of tilting.

3. A water supply apparatus having a reverse flow preventing function as claimed in claim 1 or 2, wherein: the joint of the water inlet pipe (1) and the water outlet pipe (2) is also provided with a flange (3), and a crack (32) is arranged on the flange (3).

4. A water supply apparatus having a reverse flow preventing function as claimed in claim 3, wherein: a flange thread through hole (31) is formed in the flange (3), and a second thread through hole (22) matched with the flange thread through hole (31) is formed in the connecting end face of the water outlet pipe (2) and the water inlet pipe (1); the flange (3) is enclosed outside the water inlet pipe (1) and is connected with the water outlet pipe (2) through screws.

5. A water supply apparatus having a reverse flow preventing function, as claimed in claim 4, wherein: the joint of the flange (3) and the water outlet pipe (2) is also provided with a sealing washer (4), the sealing washer (4) is provided with a crack and a third threaded through hole (41), and the third threaded through hole (41) corresponds to the flange threaded through hole (31) and the second threaded through hole (22).

6. A water supply apparatus having a reverse flow preventing function as claimed in any one of claims 1, 2, 4 or 5, wherein: still be equipped with first abrupt ridge (11) on inlet tube (1), be equipped with second abrupt ridge (21) on outlet pipe (2), the diameter of first abrupt ridge (11) is greater than the diameter of inlet tube (1), the diameter of second abrupt ridge (21) is greater than the diameter of outlet pipe (2).