CN211975992U

CN211975992U - Anti-backflow device of sewage blocking valve

Info

Publication number: CN211975992U
Application number: CN201922170050.5U
Authority: CN
Inventors: 范成建; 刘斌; 杜鹏
Original assignee: Nanjing Danxi Environmental Protection Technology Co ltd
Current assignee: Nanjing Danxi Environmental Protection Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-11-20
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a cut anti-flowing backward device of dirty valve relates to and cuts dirty valve technical field, prevents flowing backward the great problem of operation construction engineering volume for solving current dirty valve of cutting. The both ends of valve body are provided with filtering mechanism and connecting pipe respectively, and the both ends of valve body all pass through fixing bolt and filtering mechanism and connecting pipe flange sealing connection, the one end of valve body is provided with the supporting seat, be provided with the rivers passageway on the supporting seat, be provided with non return mechanism on one side outer wall of rivers passageway, and non return mechanism is located the inside of connecting pipe, non return mechanism's inside is provided with positioning baffle and adjustable fender, positioning baffle and supporting seat fixed connection, adjustable fender rotates through the lower extreme of location pivot and positioning baffle to be connected, and the size of adjustable fender is greater than the size of rivers passageway.

Description

Anti-backflow device of sewage blocking valve

Technical Field

The utility model relates to a cut dirty valve technical field, specifically be a cut anti-flowing backwards device of dirty valve.

Background

Valves are accessories for pipes used to open and close the pipe, control flow direction, regulate and control parameters of the transport medium. According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. The valve for fluid control system is from the simplest stop valve to various valves used in very complicated automatic control system, the variety and specification of the valve are quite various, and the domestic sewage interception valve does not have the function of preventing backflow, if the purpose of preventing backflow is to break the pipeline at the rear end, a set of check valve is additionally arranged, the construction work amount is large, and a certain space is occupied.

The existing method generally comprises the steps of cutting a section of pipe section of a pipeline at the rear end of a sewage interception valve, welding flanges on two ends of the rest pipeline, and connecting two ends of a check valve with the flanges. The method has a large construction work amount, and therefore the backflow preventing device of the sewage interception valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cut anti-flowing backward device of dirty valve to solve the current problem that prevents flowing backward operation construction engineering volume greatly of cutting dirty valve that provides 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 cut anti-flowing backwards device of dirty valve, includes electric actuator and valve body, the both ends of valve body are provided with filtering mechanism and connecting pipe respectively, and the both ends of valve body all through fixing bolt and filtering mechanism and connecting pipe flange sealing connection, the one end of valve body is provided with the supporting seat, be provided with the rivers passageway on the supporting seat, be provided with non return mechanism on one side outer wall of rivers passageway, and non return mechanism is located the inside of connecting pipe.

Preferably, the inside of non return mechanism is provided with positioning baffle and adjustable fender, positioning baffle with supporting seat fixed connection, adjustable fender rotates through the lower extreme of location pivot with positioning baffle to be connected, and the size of adjustable fender is greater than the size of rivers passageway.

Preferably, a connecting groove is formed in the upper end of the movable baffle, positioning bearings are arranged at two ends of the connecting groove, the positioning baffle is located inside the connecting groove, a through groove is formed in the positioning baffle, and two ends of the positioning rotating shaft penetrate through the through groove and are rotatably connected with the positioning bearings.

Preferably, a plurality of mounting holes are formed in the filtering mechanism, a water inlet is formed in the filtering mechanism, and the water inlet end of the connecting pipe are located on the same horizontal line.

Preferably, the inside of water inlet is provided with bears the packing ring, the inside of bearing the packing ring is provided with the filter screen, and bears the inner wall welded connection of packing ring and water inlet.

Preferably, the inside of valve body is provided with the valve rod, be provided with the valve plate on the one side outer wall of valve rod, and the valve plate passes through the valve rod and is connected with the valve body rotation.

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

1. the utility model discloses a non return mechanism who sets up plays the effect of preventing flowing backward, and the positioning baffle upper end is fixed, and adjustable fender's lower extreme is mobile, can push away adjustable fender when the fluid flows from the right side to the left side, and when the fluid flows from the left side to the right side, adjustable fender can support the flange on the rivers passageway, seals the pipeline to realize preventing the effect of flowing backward, non return mechanism comprises two baffles, and positioning baffle is fixed, and adjustable fender rotates with positioning baffle to be connected, the utility model discloses install in the exit of intercepting the dirty valve, this accessory outside is flange column structure, and the size is the same with intercepting dirty valve outlet flange size, has overcome the great problem of the current anti-flowing backward operation construction work volume of intercepting dirty valve.

2. The utility model discloses a can use with the cooperation of various valves, realize the valve and prevent the purpose of flowing backward, need not if the function that will realize one-way circulation must reform transform the pipeline and install the check valve additional like the valve on the market, alleviateed a lot of work load, this device processing is simple moreover, and the cost is lower, and whole device need not to maintain.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the check mechanism of the present invention;

FIG. 3 is an enlarged schematic view of part A of the present invention;

FIG. 4 is a schematic view of the internal structure of the filtering mechanism of the present invention;

in the figure: 1. an electric actuator; 2. a valve body; 3. a filtering mechanism; 4. a non-return mechanism; 41. positioning a baffle plate; 42. a movable baffle; 5. a connecting pipe; 6. a valve stem; 7. fixing the bolt; 8. a valve plate; 9. a water inlet; 10. a supporting seat; 11. a water flow channel; 12. positioning the rotating shaft; 13. a connecting groove; 14. a through groove; 15. positioning the bearing; 16. mounting holes; 17. a load bearing washer; 18. and (4) a filter screen.

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.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a cut anti-backflow device of dirty valve, includes electric actuator 1 and valve body 2, and the both ends of valve body 2 are provided with filtering mechanism 3 and connecting pipe 5 respectively, and the both ends of valve body 2 all through fixing bolt 7 and

filtering mechanism

3 and 5 flange seal connections of connecting pipe, and the one end of valve body 2 is provided with supporting seat 10, is provided with rivers passageway 11 on the supporting seat 10, is provided with non return mechanism 4 on one side outer wall of rivers passageway 11, and non return mechanism 4 is located the inside of connecting pipe 5.

Further, the inside of non return mechanism 4 is provided with location baffle 41 and adjustable fender 42, the location baffle 41 with supporting seat 10 fixed connection, adjustable fender 42 rotates through location pivot 12 and the lower extreme of location baffle 41 to be connected, and the size of adjustable fender 42 is greater than the size of rivers passageway 11, the location baffle 41 and the adjustable fender 42 that the inside of non return mechanism 4 set up play the effect of preventing flowing backwards.

Further, adjustable fender 42's upper end is provided with connecting groove 13, connecting groove 13's both ends all are provided with positioning bearing 15, positioning fender 41 is located connecting groove 13's inside, positioning fender 41's inside is provided with and runs through groove 14, and the both ends of location pivot 12 are passed and are run through groove 14 and rotate with positioning bearing 15 and be connected, adjustable fender 42's upper end is provided with connecting groove 13, positioning bearing 15 that connecting groove 13's both ends all set up plays the effect to location pivot 12 rotational positioning, the inside of positioning fender 41 sets up runs through groove 14 and plays the effect that the location pivot 12 of being convenient for run through.

Further, the inside of filtering mechanism 3 is provided with a plurality of mounting hole 16, and the inside of filtering mechanism 3 is provided with water inlet 9, and water inlet 9 and the end of intaking of connecting pipe 5 are located same water flat line, and a plurality of mounting hole 16 that the inside of filtering mechanism 3 set up plays the effect of the filtering mechanism 3 installation of being convenient for, and the water inlet 9 of the inside setting of filtering mechanism 3 plays the effect of being convenient for intake.

Further, the inside of water inlet 9 is provided with bearing washer 17, and the inside of bearing washer 17 is provided with filter screen 18, and bears the inner wall welded connection of washer 17 and water inlet 9, and the bearing washer 17 that the inside of water inlet 9 set up plays the effect of bearing filter screen 18, and the filter screen 18 that the inside of bearing washer 17 set up plays the effect of impurity filtering to aquatic.

Further, the inside of valve body 2 is provided with valve rod 6, is provided with valve plate 8 on one side outer wall of valve rod 6, and valve plate 8 rotates through valve rod 6 and valve body 2 to be connected, and valve rod 6 that the inside of valve body 2 set up plays and drives 8 pivoted effects of valve plate, and valve plate 8 that sets up on one side outer wall of valve rod 6 plays the effect of controlling the inside of valve body 2 and opening and close.

The working principle is as follows: during the use, electric actuator 1 drives the inside valve rod 6 rotation of valve body 2, positioning baffle 41 upper end is fixed, the lower extreme of adjustable fender 42 is movable, can push away adjustable fender 42 when fluid turns left side flow from the right side and flow, when fluid turns right side flow from the left side, adjustable fender 42 can support the flange on rivers passageway 11, seal the pipeline, thereby realize the effect of preventing flowing backward, filter mechanism 3 plays the filterable effect of intaking, impurity in aquatic can be so that the better work of transmitting of carrying on of sewage after being filtered by filter screen 18, the inside problem of debris jam valve body 2 of aquatic has been avoided, the work of preventing flowing backward of completion sewage valve.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a cut anti-backflow device of dirty valve, includes electric actuator (1) and valve body (2), its characterized in that: the two ends of the valve body (2) are respectively provided with a filtering mechanism (3) and a connecting pipe (5), the two ends of the valve body (2) are connected with the filtering mechanism (3) and the connecting pipe (5) in a flange sealing mode through fixing bolts (7), one end of the valve body (2) is provided with a supporting seat (10), a water flow channel (11) is arranged on the supporting seat (10), a non-return mechanism (4) is arranged on the outer wall of one side of the water flow channel (11), and the non-return mechanism (4) is located inside the connecting pipe (5).

2. The backflow prevention device of the sewage interception valve according to claim 1, wherein: the inside of non return mechanism (4) is provided with positioning baffle (41) and adjustable fender (42), positioning baffle (41) with supporting seat (10) fixed connection, adjustable fender (42) are connected through the lower extreme rotation of location pivot (12) and positioning baffle (41), and the size of adjustable fender (42) is greater than the size of rivers passageway (11).

3. The backflow prevention device of the sewage interception valve according to claim 2, wherein: the upper end of the movable baffle (42) is provided with a connecting groove (13), two ends of the connecting groove (13) are provided with positioning bearings (15), the positioning baffle (41) is located inside the connecting groove (13), a through groove (14) is formed inside the positioning baffle (41), and two ends of the positioning rotating shaft (12) penetrate through the through groove (14) and are rotatably connected with the positioning bearings (15).

4. The backflow prevention device of the sewage interception valve according to claim 1, wherein: the inside of filtering mechanism (3) is provided with a plurality of mounting hole (16), the inside of filtering mechanism (3) is provided with water inlet (9), and the end of intaking of water inlet (9) and connecting pipe (5) is located same water flat line.

5. The backflow prevention device of the sewage interception valve according to claim 4, wherein: the water inlet structure is characterized in that a bearing gasket (17) is arranged inside the water inlet (9), a filter screen (18) is arranged inside the bearing gasket (17), and the bearing gasket (17) is connected with the inner wall of the water inlet (9) in a welding mode.

6. The backflow prevention device of the sewage interception valve according to claim 1, wherein: the valve is characterized in that a valve rod (6) is arranged inside the valve body (2), a valve plate (8) is arranged on the outer wall of one side of the valve rod (6), and the valve plate (8) is rotatably connected with the valve body (2) through the valve rod (6).