CN219013453U

CN219013453U - Four-way valve with backflow prevention function

Info

Publication number: CN219013453U
Application number: CN202223390335.8U
Authority: CN
Inventors: 阮必春; 徐大伟
Original assignee: Jiangsu Oruid Petroleum Machinery Co ltd
Current assignee: Jiangsu Oruid Petroleum Machinery Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-05-12
Anticipated expiration: 2032-12-17

Abstract

The utility model discloses a four-way valve with a backflow prevention function, which comprises a water inlet pipe and a flow dividing pipe, wherein a filter screen mechanism is arranged in the water inlet pipe, a cleaning mechanism is arranged on the inner side of the filter screen mechanism, a collecting cylinder is arranged on one side of the cleaning mechanism, a backflow prevention mechanism is arranged on one side of a collecting opening of the collecting cylinder, three groups of flow dividing pipes are internally provided with movable valve plates, the backflow prevention mechanism comprises a sealing surface, a rotary blocking plate is arranged on one side, close to the flow dividing pipe, of the sealing surface, and the top of the rotary blocking plate is rotationally connected with the sealing surface. This four-way valve with prevent function of flowing backwards, this device is for solving the unable problem of preventing flowing backwards of current four-way valve, through installing the mechanism of preventing flowing backwards in collection mouth one side of collection section of thick bamboo, when the condition of flowing backwards of transport liquid takes place, the baffle can prevent rotatory closure plate and carry out clockwise rotation under the effect of the transport liquid of flowing backwards to avoid transporting liquid to flow backwards, rotatory closure plate and baffle extrusion each other under the effect of transport liquid of flowing backwards simultaneously make both contact department inseparabler.

Description

Four-way valve with backflow prevention function

Technical Field

The utility model relates to the technical field of four-way valves, in particular to a four-way valve with a backflow prevention function.

Background

The four-way valve is a valve with four pipe interfaces, one of the four pipe interfaces is a water inlet interface, the other three pipe interfaces are water outlet interfaces, and when water flow enters the four-way valve from the water inlet interface, the water flow is split into three parts and flows out of the three water outlet interfaces respectively for use.

The utility model provides a four-way valve seat with prevent blockking up function in the prior art as disclosed in publication number CN215487896U through retrieving discovery, including the four-way valve, the open end of four-way valve all has solid fixed ring through the ring flange fixed intercommunication, gu fixed ring keeps away from one side of four-way valve and has set firmly prevents stifled ring, the fixed connection has a plurality of baffle between the table wall in the both sides of preventing stifled ring, the equal fixedly connected with connecting block in the bottom both sides of preventing stifled ring, the spread groove with connecting block looks adaptation has all been seted up to the top both sides of gu fixed ring. The utility model solves the problem that the existing four-way valve seat lacks of blocking sundries in liquid medium, and the sundries often enter the four-way valve seat to be blocked.

The four-way valve solves the problems that the existing four-way valve lacks blocking sundries in liquid media, sundries are frequently caused to enter the four-way valve to be blocked, but once the pressure difference problem occurs in the four-way valve, water flow in the four-way valve can flow backwards through the water inlet interface and flows into a pipeline connected with the water inlet interface, and the pipeline is also connected with a water pump.

Disclosure of Invention

The utility model aims to provide a four-way valve with a backflow prevention function, so as to solve the problem that the existing four-way valve provided in the background art cannot prevent backflow.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a four-way valve with prevent function of flowing backwards, includes the valve body, the valve body includes inlet tube and shunt tubes, the inside filter screen mechanism that is provided with of inlet tube, and filter screen mechanism inboard installs clean mechanism, clean mechanism installs an accumulation section of thick bamboo in one side, and gathers an accumulation mouth one side and install and prevent flowing backwards the mechanism, three group shunt tubes are inside all to be provided with the removal valve plate, prevent flowing backwards the mechanism including sealed face, sealed face is close to shunt tubes one side and is provided with rotatory closure plate, and rotatory closure plate top and sealed face rotation are connected.

Preferably, the sealing surface is connected with the inner wall of the water inlet pipe, and a baffle matched with the rotary blocking plate is arranged in the sealing surface.

By adopting the technical scheme, the rotary blocking plate is prevented from rotating clockwise.

Preferably, the filter screen mechanism comprises a second fixed ring, the second fixed ring is connected with the inner wall of the water inlet pipe, a filter screen is arranged in the second fixed ring, and a chute matched with the cleaning mechanism is formed in the second fixed ring.

By adopting the technical scheme, the valve body is prevented from being blocked.

Preferably, the cleaning mechanism comprises a motor, the motor is installed in the valve body outside, and the motor output is connected with first helical gear through the head rod, first helical gear meshes with the second helical gear, and second helical gear internal connection has the second connecting rod, second connecting rod one end rotates in the bracing piece that the inlet tube is inside to be set up, and the other end runs through to the filter screen outside, second connecting rod one end is connected with the cleaning brush, and installs on the cleaning brush with spout assorted slider, brush head in the cleaning brush hugs closely with the filter screen outside.

By adopting the technical scheme, the filter screen can be cleaned conveniently.

Preferably, the movable valve plate comprises a mounting groove, a rotating handle is arranged on the outer side of the mounting groove, and one end of the rotating handle is connected with a valve plate mechanism arranged inside the mounting groove.

By adopting the technical scheme, the valve plate is convenient to adjust.

Preferably, the valve plate mechanism comprises a threaded rod, the outer side of the threaded rod is connected with the valve plate, and the valve plate moves in the mounting groove and the shunt pipe.

By adopting the technical scheme, the valve plate is convenient to drive to move.

Compared with the prior art, the utility model has the beneficial effects that: this four-way valve with prevent backflow function, this device is for solving the unable problem of preventing backflow of current four-way valve, through installing the mechanism of preventing backflow in collection section of thick bamboo collection mouth one side, during normal transport, rotatory closure plate top is anticlockwise rotatory around sealed face one side under the effect of transport liquid, transport liquid flows out in the gap that rotatory closure plate and sealed face produced, when transport liquid stops carrying, rotatory closure plate rotates clockwise under the effect of self gravity, when rotatory closure plate one side and baffle contact, the baffle can block rotatory closure plate and further rotate, make rotatory closure plate and sealed face be in closed condition, inlet tube passageway is in closed condition this moment, when taking place transport liquid backflow condition, the baffle can prevent rotatory closure plate to carry out clockwise rotation under the effect of backflow transport liquid, thereby avoid transport liquid backflow, rotatory closure plate and baffle extrusion each other under the effect of backflow transport liquid simultaneously, make both contact department more inseparable, improve the leakproofness of its contact department.

Drawings

FIG. 1 is a schematic diagram of the overall front cross-sectional structure of the present utility model;

FIG. 2 is a schematic diagram of the connection between the filter mechanism and the cleaning mechanism according to the present utility model;

FIG. 3 is a schematic view of a filter mechanism according to the present utility model;

FIG. 4 is a schematic view of the structure of the gathering cylinder of the present utility model;

FIG. 5 is a schematic view showing the positional relationship between the collecting cylinder and the backflow preventing mechanism;

fig. 6 is an enlarged schematic view of the structure of the present utility model at a.

In the figure: 1. a valve body; 101. a water inlet pipe; 102. a shunt; 2. a filter screen mechanism; 201. a second fixing ring; 202. a filter screen; 3. a cleaning mechanism; 301. a motor; 302. a first connecting rod; 303. a first helical gear; 304. a second helical gear; 305. a second connecting rod; 306. a cleaning brush; 4. a collection cylinder; 5. a backflow prevention mechanism; 501. sealing surfaces; 502. rotating the blocking plate; 6. moving the valve plate; 601. a mounting groove; 602. a rotating handle; 603. a valve plate mechanism; 6031. a threaded rod; 6032. a valve plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: according to the four-way valve with backflow prevention function, as shown in fig. 1-3, a valve body 1 comprises a water inlet pipe 101 and a shunt pipe 102, a filter screen mechanism 2 is arranged in the water inlet pipe 101, and a cleaning mechanism 3 is arranged on the inner side of the filter screen mechanism 2.

Specifically, the filter screen mechanism 2 includes a second fixing ring 201, the second fixing ring 201 is connected with the inner wall of the water inlet pipe 101, a filter screen 202 is disposed in the second fixing ring 201, and a chute matched with the cleaning mechanism 3 is formed in the second fixing ring 201.

In a further embodiment, the water flow entering the water inlet pipe 101 can be filtered by arranging the filter screen mechanism 2, so that the valve body 1 is prevented from being blocked by impurities in the later period.

Specifically, the cleaning mechanism 3 includes a motor 301, the motor 301 is mounted on the outer side of the valve body 1, the output end of the motor 301 is connected with a first bevel gear 303 through a first connecting rod 302, the first bevel gear 303 is meshed with a second bevel gear 304, the second bevel gear 304 is internally connected with a second connecting rod 305, one end of the second connecting rod 305 rotates in a supporting rod arranged in the water inlet pipe 101, the other end of the second connecting rod 305 penetrates to the outer side of the filter screen 202, one end of the second connecting rod 305 is connected with a cleaning brush 306, a sliding block matched with a sliding groove is mounted on the cleaning brush 306, and a brush head in the cleaning brush 306 is clung to the outer side of the filter screen 202.

When the filter screen 202 is blocked, the motor 301 is started, so that the motor 301 drives the first connecting rod 302 and the first bevel gear 303 to rotate, and then drives the second bevel gear 304 and the second connecting rod 305 to synchronously rotate, and under the action of the rotation of the second connecting rod 305, the cleaning brush 306 rotates outside the filter screen 202, so that the blocking object on the filter screen 202 is brushed off.

According to fig. 1 and fig. 4 to 6, a collecting cylinder 4 is installed on one side of the cleaning mechanism 3, and a backflow preventing mechanism 5 is installed on one side of a collecting port of the collecting cylinder 4.

In a further embodiment, the collecting cylinder 4 can collect the water flow of the water inlet pipe 101, so as to improve the impact force of the water flow, and the water flow can more easily push the rotation blocking plate 502 in the backflow prevention mechanism 5 to rotate.

Specifically, the backflow prevention mechanism 5 includes a sealing surface 501, a rotating blocking plate 502 is disposed on one side of the sealing surface 501 near the shunt tube 102, and the top of the rotating blocking plate 502 is rotationally connected with the sealing surface 501.

Specifically, the sealing surface 501 is connected with the inner wall of the water inlet pipe 101, and a baffle matched with the rotary blocking plate 502 is installed inside the sealing surface 501.

During normal conveying, the top of the rotary blocking plate 502 rotates anticlockwise around one side of the sealing surface 501 under the action of conveying liquid, the conveying liquid flows out of a gap formed between the rotary blocking plate 502 and the sealing surface 501, when conveying liquid stops conveying, the rotary blocking plate 502 rotates clockwise under the action of gravity, when one side of the rotary blocking plate 502 contacts with the baffle, the baffle can block the rotary blocking plate 502 from rotating further, the rotary blocking plate 502 and the sealing surface 501 are in a closed state, a channel of the water inlet pipe 101 is in a closed state at the moment, when the condition of backflow of the conveying liquid occurs, the baffle can prevent the rotary blocking plate 502 from rotating clockwise under the action of backflow conveying liquid, so that backflow of the conveying liquid is avoided, and meanwhile, the contact position of the rotary blocking plate 502 and the baffle is tighter under the action of backflow conveying liquid, and the sealing performance of the contact position of the rotary blocking plate is improved.

According to the illustration in fig. 1, the movable valve plates 6 are arranged in the three-component flow tubes 102, and the opening and closing conditions of different flow tubes 102 can be controlled by arranging the movable valve plates 6 in the flow tubes 102.

Specifically, the movable valve plate 6 includes a mounting groove 601, a rotating handle 602 is disposed outside the mounting groove 601, and one end of the rotating handle 602 is connected with a valve plate mechanism 603 disposed inside the mounting groove 601.

In a further embodiment, the valve plate mechanism 603 includes a threaded rod 6031, and the threaded rod 6031 is coupled to a valve plate 6032 on the outside, with the valve plate 6032 moving within the mounting slot 601 and shunt 102.

When in use, the rotary handle 602 is held by a hand to rotate, the threaded rod 6031 synchronously rotates under the action of the rotary handle 602, and the valve plate 6032 moves under the action of the rotation of the threaded rod 6031, so that the inside of the shunt pipe 102 can be opened and closed.

The terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for descriptive simplicity and convenience only and not as an indication or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated for a particular orientation, based on the orientation or positional relationship illustrated in the drawings, and thus should not be construed as limiting the scope of the present utility model.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a four-way valve with prevent function of flowing backwards, includes valve body (1), valve body (1) are including inlet tube (101) and shunt tubes (102), inlet tube (101) inside is provided with filter screen mechanism (2), and filter screen mechanism (2) inboard installs clean mechanism (3), collection section of thick bamboo (4) are installed to clean mechanism (3) one side, and collection section of thick bamboo (4) gathers mouthful one side and install prevent flowing backwards mechanism (5), three group shunt tubes (102) inside all is provided with movable valve plate (6), its characterized in that: the backflow prevention mechanism (5) comprises a sealing surface (501), a rotary blocking plate (502) is arranged on one side, close to the shunt pipe (102), of the sealing surface (501), and the top of the rotary blocking plate (502) is rotationally connected with the sealing surface (501).

2. The four-way valve with backflow prevention function according to claim 1, wherein: the sealing surface (501) is connected with the inner wall of the water inlet pipe (101), and a baffle matched with the rotary blocking plate (502) is arranged in the sealing surface (501).

3. The four-way valve with backflow prevention function according to claim 1, wherein: the filter screen mechanism (2) comprises a second fixed ring (201), the second fixed ring (201) is connected with the inner wall of the water inlet pipe (101), a filter screen (202) is arranged inside the second fixed ring (201), and a chute matched with the cleaning mechanism (3) is formed in the second fixed ring (201).

4. A four-way valve with backflow prevention function according to claim 3, wherein: the cleaning mechanism (3) comprises a motor (301), the motor (301) is mounted on the outer side of the valve body (1), the output end of the motor (301) is connected with a first bevel gear (303) through a first connecting rod (302), the first bevel gear (303) is meshed with a second bevel gear (304), the second bevel gear (304) is internally connected with a second connecting rod (305), one end of the second connecting rod (305) rotates in a supporting rod arranged in the water inlet pipe (101), the other end of the second connecting rod penetrates to the outer side of the filter screen (202), one end of the second connecting rod (305) is connected with a cleaning brush (306), a sliding block matched with a sliding groove is mounted on the cleaning brush (306), and a brush head in the cleaning brush (306) is tightly attached to the outer side of the filter screen (202).

5. The four-way valve with backflow prevention function according to claim 1, wherein: the movable valve plate (6) comprises a mounting groove (601), a rotating handle (602) is arranged on the outer side of the mounting groove (601), and one end of the rotating handle (602) is connected with a valve plate mechanism (603) arranged inside the mounting groove (601).

6. The four-way valve with backflow prevention function according to claim 5, wherein: the valve plate mechanism (603) comprises a threaded rod (6031), the outer side of the threaded rod (6031) is connected with a valve plate (6032), and the valve plate (6032) moves in the mounting groove (601) and the shunt tube (102).