CN212536787U

CN212536787U - Novel backflow prevention device

Info

Publication number: CN212536787U
Application number: CN202021014914.0U
Authority: CN
Inventors: 阮伟光
Original assignee: Guangdong Weixiang Sanitary Ware Co ltd
Current assignee: Guangdong Weixiang Sanitary Ware Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-02-12
Anticipated expiration: 2030-06-05

Abstract

The utility model provides a novel backflow prevention device, including valve body shell, outlet pipe, the bottom face fixedly connected with base shell of valve body shell, just base shell's diameter is greater than the diameter of valve body shell, solves current device that prevents the water route backward flow and generally is the reversal valve, but the complicated and with high costs problem of its structure, the utility model discloses a design a new device, adopt simple and easy device to realize the function that prevents the water route backward flow, low in production cost, the requirement that production efficiency is high can be used to the efficiency of bathroom tap water route check valve.

Description

Novel backflow prevention device

Technical Field

The utility model belongs to the technical field of bathroom trade, more specifically say, in particular to novel backflow prevention device.

Background

The bathroom industry has special requirements on waterways, some waterways require that water flow can only flow in a one-way mode but not flow in a two-way mode, so that a device for preventing the waterway from flowing back is required, and a backflow preventing device commonly used in the market is a check valve, so that the structure is complex and the cost is high.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a novel backflow prevention device is provided in order to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel backflow prevention device to solve the device that current water route backward flow was prevented and generally be the reversal valve, but its structure complicacy and problem with high costs.

The utility model discloses backflow preventer's purpose and efficiency are reached by following specific technological means:

a novel backflow prevention device comprises a valve body shell and a water outlet pipe, wherein a base shell is fixedly connected to the bottom end face of the valve body shell, and the diameter of the base shell is larger than that of the valve body shell; the water outlet pipe is fixedly connected with the valve mechanism through a connecting mechanism, and the mounting position of the water outlet pipe is located at the center of the bottom end face of the base shell.

Further, the outlet pipe is including body, pipe wall and socket, the pipe wall has been seted up to the inside of body, the top position of body is the socket.

Further, valve mechanism is including O ring, valve ball, filter screen and disk seat, the valve ball is installed to the inside center of disk seat position on the upper side, filter screen fixed connection is in the inside center position on the lower side of disk seat, just the mounted position of filter screen is located the valve ball and puts under, O ring fixed connection is put at the inside center of disk seat, just the mounted position of O ring is located the filter screen and puts under.

Furthermore, the connecting mechanism comprises a locking nut, a gasket and a joint, the gasket with the same size is attached to the bottom end face of the locking nut, and the joint is screwed to the position right below the locking nut.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a design a new device, adopted simple and easy device to realize preventing the function of water route backward flow, low in production cost, the requirement that production efficiency is high can be used to the efficiency of bathroom tap water route check valve.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic view of the internal cross-sectional structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a valve body housing; 2. a base housing; 3. a water outlet pipe; 301. a pipe body; 302. a tube wall; 303. a socket; 4. a valve mechanism; 401. an O ring; 402. a valve ball; 403. filtering with a screen; 404. a valve seat; 5. a connecting mechanism; 501. locking the nut; 502. a gasket; 503. and (4) a joint.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 2:

the utility model provides a novel backflow prevention device, which comprises a valve body shell 1 and a water outlet pipe 3, wherein the bottom end surface of the valve body shell 1 is fixedly connected with a base shell 2, and the diameter of the base shell 2 is larger than that of the valve body shell 1; the water outlet pipe 3 is fixedly connected with the valve mechanism 4 through a connecting mechanism 5, and the mounting position of the water outlet pipe 3 is positioned at the center of the bottom end face of the base shell 2.

The water outlet pipe 3 comprises a pipe body 301, a pipe wall 302 and a socket 303, the pipe wall 302 is arranged inside the pipe body 301, and the socket 303 is arranged at the top end of the pipe body 301.

The valve mechanism 4 includes an O-ring 401, a valve ball 402, a filter screen 403 and a valve seat 404, the valve ball 402 is mounted at an upper position of the inner center of the valve seat 404, the filter screen 403 is fixedly connected at a lower position of the inner center of the valve seat 404, the mounting position of the filter screen 403 is located right below the valve ball 402, the O-ring 401 is fixedly connected at the inner center of the valve seat 404, and the mounting position of the O-ring 401 is located right below the filter screen 403.

The connecting mechanism 5 comprises a locking nut 501, a gasket 502 and a joint 503, the gasket 502 with the same size is attached to the bottom end face of the locking nut 501, and the joint 503 is screwed on the position right below the locking nut 501.

The specific use mode and function of the embodiment are as follows:

this structural design is simple, contains parts such as O ring 401, valve ball 402, filter screen 403, valve seat 404, gasket 502, joint 503, outlet pipe 3 and constitutes, see fig. 2, when the water route flows out from the box during specific theory of operation, because hydraulic effect, pushes away valve ball 402 and moves downwards, rivers can flow to outlet pipe 3 through valve seat 404, joint 503 smoothly, the discharge waste water. In order to prevent the wastewater from flowing back, the whole waterway is required to be incapable of flowing reversely, when the pressure at the wastewater end is too high and the wastewater has a backflow tendency, the valve ball 402 on the filter screen 403 is pushed to move upwards due to high wastewater pressure, when the valve ball 402 reaches the opening of the valve seat 404, the water outlet hole is completely blocked, the whole waterway is closed, and the water flow cannot flow reversely, so that the purpose of controlling the unidirectional flow of the waterway is achieved.

Valve ball 402 installs on filter screen 403, and filter screen 403 is the stainless steel filter screen, and elasticity is good, has certain reply function, plays the effect of spring, only water pressure reaches certain time can push valve ball 402 open, and the water route just can be unobstructed, has strengthened preventing waste water backflow function.

The structure has simple design and low production cost, and can be used for mass production.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a novel backflow prevention device which characterized in that: the water-saving valve comprises a valve body shell (1) and a water outlet pipe (3), wherein the bottom end face of the valve body shell (1) is fixedly connected with a base shell (2), and the diameter of the base shell (2) is larger than that of the valve body shell (1); the water outlet pipe (3) is fixedly connected with the valve mechanism (4) through a connecting mechanism (5), and the mounting position of the water outlet pipe (3) is located at the center of the bottom end face of the base shell (2).

2. The new backflow prevention device as claimed in claim 1, wherein: the water outlet pipe (3) comprises a pipe body (301), a pipe wall (302) and a socket (303), the pipe wall (302) is arranged inside the pipe body (301), and the socket (303) is arranged at the top end of the pipe body (301).

3. The new backflow prevention device as claimed in claim 1, wherein: valve mechanism (4) are including O ring (401), valve ball (402), filter screen (403) and valve seat (404), valve ball (402) are installed to the inside center of valve seat (404) position on the upper side, filter screen (403) fixed connection is in the inside center position on the lower side of valve seat (404), just the mounted position of filter screen (403) is located valve ball (402) under the position, O ring (401) fixed connection is in the inside central point of valve seat (404) and puts, just the mounted position of O ring (401) is located filter screen (403) under the position.

4. The new backflow prevention device as claimed in claim 1, wherein: the connecting mechanism (5) comprises a locking nut (501), a gasket (502) and a joint (503), wherein the gasket (502) with the same size is attached to the bottom end face of the locking nut (501), and the joint (503) is screwed and connected to the position right below the locking nut (501).