CN210600316U

CN210600316U - Anti-backflow pumping valve

Info

Publication number: CN210600316U
Application number: CN201921030858.7U
Authority: CN
Inventors: 罗丽琳
Original assignee: Oemeta Wuhan Co ltd
Current assignee: Oemeta Wuhan Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-22
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a backflow prevention pumping valve relates to valve technical field, which comprises a valve body, the intermediate junction of valve body has the vatch basin, there is the closure plate on the top of vatch basin one side through articulated shaft swing joint, one side that the valve body top is located the vatch basin is provided with first transmission case, the cylinder is installed at the top of first transmission case. The utility model discloses an at valve body intermediate junction vatch basin, there is the closure plate on the top of the inside one side of closure box through articulated shaft swing joint, when letting in fluid from the one end that the valve body is close to the second transmission case, one side of closure plate is strikeed to the fluid, the closure plate upwards overturns, the normal logical material of valve body, when the phenomenon of backward flow appears, the opposite side of closure plate is strikeed to backward flow fluid, the closure plate receives impact force and self gravity factor upset downwards, can carry out the one-level with backward flow fluid at once and dams, then closed first valve plate or second valve plate, carry out the second grade to backward flow fluid and dams.

Description

Anti-backflow pumping valve

Technical Field

The utility model relates to the technical field of valves, specifically be an anti-return pump sending valve.

Background

The concrete construction of super high-rise building can be bigger and bigger along with the increase degree of difficulty of floor, and concrete feeding adopts the concrete pump to add the transport mode of pump line, and the floor is higher, and the concrete backward flow problem shows gradually, takes reasonable technical measure can reduce the loss that the pipe in the concrete backward flow caused greatly, installs the pump line valve in the pump mouth department, can prevent the backward flow of vertical pipeline concrete at any time.

The existing backflow-preventing pumping valve is single in operation mode, and when the backflow phenomenon occurs, the existing backflow-preventing pumping valve often cannot be closed in time to cut off the flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the backflow-preventing pumping valve is used for solving the problems that an existing backflow-preventing pumping valve is single in operation mode, and the existing backflow-preventing pumping valve cannot be closed timely to cut off when backflow occurs.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-return pump sending valve, includes the valve body, the intermediate junction of valve body has the vatch basin, there is the closure plate on the top of vatch basin one side through articulated shaft swing joint, one side that the valve body top is located the vatch basin is provided with first transmission case, the cylinder is installed at the top of first transmission case, the output of cylinder extends to the inside of first transmission case and is connected with the first valve plate that extends to the valve body inside, one side that the valve body top is located first transmission case is provided with the second transmission case, the top of second transmission case is rotated and is connected with the rotary drum, the inside threaded connection of rotary drum has the screw rod that extends to the second transmission case inside, the bottom of screw rod is connected with the second valve plate that extends to the valve body inside, the outside of rotary drum is connected with.

Preferably, the two ends of the outer side of the valve body are provided with flange plates, and the flange plates are provided with threaded holes.

Preferably, a baffle is arranged at the bottom end of the interior of the intercepting box.

Preferably, a limiting block is arranged on one side, far away from the hinge shaft, of the top end in the intercepting box.

Preferably, the bottom ends of both sides of the intercepting plate are in an inclined structure.

Preferably, the top of the second transmission box is rotatably connected with the rotary drum through a bearing.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model can control the opening and closing of the valve body by the movement of the cylinder driving the first valve plate, also can control the opening and closing of the valve body by rotating the hand wheel and the rotary drum, the rotary drum controls the opening and closing of the valve body by the movement of the screw driving the second valve plate, and integrates the pneumatic operation mode and the manual operation mode, the operation mode is diversified, and when the cylinder and the pneumatic device thereof break down, the emergency can be performed by the manual operation mode; the intercepting box is connected to the middle of the valve body, the top end of one side inside the intercepting box is movably connected with the intercepting plate through the hinged shaft, when fluid is introduced from one end, close to the second transmission box, of the valve body, the fluid impacts one side of the intercepting plate, the intercepting plate is turned upwards, the valve body is normally charged, when the backflow phenomenon occurs, the backflow fluid impacts the other side of the intercepting plate, the intercepting plate is turned downwards under the impact force and the gravity factor of the valve body, the backflow fluid can be immediately subjected to primary interception, then the first valve plate or the second valve plate is closed, and secondary interception is performed on the backflow fluid.

Drawings

FIG. 1 is an external view of the present invention;

fig. 2 is a schematic structural view of the valve body of the present invention in a closed state;

fig. 3 is a schematic structural view of the valve body of the present invention in an open state.

In the figure: 1. a valve body; 2. a flow-stopping box; 3. hinging a shaft; 4. a shutoff plate; 5. a limiting block; 6. a first transmission case; 7. a cylinder; 8. a first valve plate; 9. a second transmission case; 10. a rotating drum; 11. a screw; 12. a second valve plate; 13. a hand wheel; 14. a flange plate; 15. and a baffle plate.

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.

Referring to fig. 1-3, a backflow prevention pumping valve comprises a valve body 1, a cut-off box 2 is connected in the middle of the valve body 1, a cut-off plate 4 is movably connected to the top end of one side of the cut-off box 2 through a hinge shaft 3, a first transmission box 6 is arranged on one side, located on the cut-off box 2, of the top of the valve body 1, a cylinder 7 is installed at the top of the first transmission box 6, the output end of the cylinder 7 extends into the first transmission box 6 and is connected with a first valve plate 8 extending into the valve body 1, a second transmission box 9 is arranged on one side, located on the first transmission box 6, of the top of the valve body 1, a rotary drum 10 is rotatably connected to the top of the second transmission box 9, a screw rod 11 extending into the second transmission box 9 is connected to the inner thread of the rotary drum 10, a second valve plate 12 extending into the valve body 1.

The utility model discloses the motion that accessible cylinder 7 drove first valve plate 8 controls opening and being closed of valve body 1, also accessible rotates hand wheel 13 and rotary drum 10, and opening and being closed of valve body 1 is controlled through the motion that screw rod 11 drove second valve plate 12 to rotary drum 10, with pneumatic and two kinds of manual operation mode sets together, and operation mode is diversified, and when cylinder 7 and pneumatic device broke down, accessible manually operation's mode was emergent.

Please refer to fig. 1, fig. 2 and fig. 3, the two ends of the outer side of the valve body 1 are provided with flanges 14, and the flanges 14 are provided with threaded holes, the utility model discloses a set up the flanges 14, the both ends accessible flange 14 of the valve body 1 is connected with external pipeline.

Please refer to fig. 2 and fig. 3, the baffle 15 is disposed at the bottom of the interior of the intercepting box 2, the baffle 15 is disposed at the bottom of the interior of the valve body 1 to keep the baffle 15 horizontal, so as to prevent the fluid from staying in the interior of the intercepting box 2.

Please refer to fig. 2 and fig. 3 emphatically, one side that articulated shaft 3 was kept away from to the inside top of closure box 2 is provided with stopper 5, the utility model discloses a set up stopper 5, when closure plate 4 upwards overturns, under stopper 5's effect, closure plate 4 can not contact with the top of closure box 2, and can keep certain angle with closure box 2 top, when the phenomenon of backward flow appears, backward flow fluid strikes closure plate 4, and closure plate 4 receives impact force and self gravity factor upset downwards.

Please refer to fig. 2 and fig. 3, the bottom ends of the two sides of the intercepting plate 4 are both inclined structures, the bottom ends of the two sides of the intercepting plate 4 are provided with the inclined structures, the fluid impacts the inclined surface, and the inclined surface is stressed, so that the intercepting plate 4 can be conveniently driven to turn.

Please refer to fig. 2 and fig. 3, the top of the second transmission box 9 is connected to the rotating drum 10 through the rotation of the bearing, the rotating drum 10 is connected to the second transmission box 9 through the rotation of the bearing, so that the rotating drum 10 can be driven to rotate through the hand wheel 13, and the rotating drum 10 rotates to drive the screw rod 11 and the second valve plate 12 to move.

The working principle is as follows: the two ends of the valve body 1 are connected with an external pipeline through a flange 14, the first valve plate 8 can be driven to move downwards or upwards through the extension and contraction of a piston rod in the cylinder 7, so as to control the opening and closing of the valve body 1, the hand wheel 13 can also be manually rotated, the hand wheel 13 drives the rotary drum 10 to rotate, because the inner side of the rotary drum 10 is provided with an internal thread matched with the screw rod 11, under the interaction of the threads, the rotary drum 10 drives the screw rod 11 and the second valve plate 12 to move upwards or downwards so as to control the opening or closing of the valve body 1, when the cylinder 7 and a pneumatic device of the cylinder 7 are in failure, emergency can be performed through a manual operation mode, when fluid is introduced from one end of the valve body 1 close to the second transmission case 9, the fluid impacts one side of the shutoff plate 4, the shutoff plate 4 turns upwards by taking the hinge shaft 3 as an axis, the valve body 1 normally passes through materials, the intercepting plate 4 can not contact with the top of the intercepting box 2 and can keep a certain angle, when the phenomenon of backflow occurs, backflow fluid impacts the other side of the intercepting plate 4, the intercepting plate 4 is overturned downwards under the impact force and the self gravity factor, the backflow fluid can be immediately subjected to primary interception, and then the first valve plate 8 or the second valve plate 12 is closed, and secondary interception is performed on the backflow fluid.

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. An anti-backflow pumping valve, comprising a valve body (1), characterized in that: the middle of the valve body (1) is connected with a cut-off box (2), the top end of one side of the cut-off box (2) is movably connected with a cut-off plate (4) through a hinged shaft (3), one side of the top of the valve body (1), which is positioned at the cut-off box (2), is provided with a first transmission box (6), the top of the first transmission box (6) is provided with a cylinder (7), the output end of the cylinder (7) extends to the inside of the first transmission box (6) and is connected with a first valve plate (8) extending to the inside of the valve body (1), one side of the top of the valve body (1), which is positioned at the first transmission box (6), is provided with a second transmission box (9), the top of the second transmission box (9) is rotatably connected with a rotary drum (10), the internal thread of the rotary drum (10) is connected with a screw rod (11) extending to the inside of the second transmission box (9), the bottom of the screw rod (11), the outer side of the rotary drum (10) is connected with a hand wheel (13).

2. The anti-drainback pump valve as claimed in claim 1, wherein: both ends of the outer side of the valve body (1) are provided with flange plates (14), and the flange plates (14) are provided with threaded holes.

3. The anti-drainback pump valve as claimed in claim 1, wherein: the bottom end in the closure box (2) is provided with a baffle (15).

4. The anti-drainback pump valve as claimed in claim 1, wherein: and a limiting block (5) is arranged on one side, far away from the hinged shaft (3), of the top end in the closure box (2).

5. The anti-drainback pump valve as claimed in claim 1, wherein: the bottom ends of the two sides of the intercepting plate (4) are both of inclined structures.

6. The anti-drainback pump valve as claimed in claim 1, wherein: the top of the second transmission case (9) is rotatably connected with the rotary drum (10) through a bearing.