CN209959946U

CN209959946U - Bronze stop check valve

Info

Publication number: CN209959946U
Application number: CN201920851712.2U
Authority: CN
Inventors: 顾素云
Original assignee: JIANGSU TONGDA MARINE-TYPE VALVE AND PUMP Co Ltd
Current assignee: JIANGSU TONGDA MARINE-TYPE VALVE AND PUMP Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-01-17
Anticipated expiration: 2029-06-06

Abstract

The utility model discloses a bronze stop check valve belongs to check valve technical field. The bronze stop check valve comprises a check valve body, wherein a fixed rod is fixedly connected in the check valve body, a first check plate is fixedly connected on the fixed rod, a first rotating shaft is rotatably connected in the check valve body, a second check plate is fixedly connected on the first rotating shaft, a nylon rope is arranged on a pulley, one end of the nylon rope is fixedly connected on the side wall of the bottom of the valve clack, and the other end of the nylon rope is fixedly connected on the side wall of the second check plate far away from one end of the first rotating shaft; the utility model discloses a valve clack when removing, the pulling is the check board rotation down, and after rotating certain angle, the cooperation of check board and last check board down continues to move down through the valve clack down to the check board rotates under continuing to drive, and when the check board cooperates with first check board, the valve clack moves down to the water inlet, through the sealed water inlet of valve clack, and then the effectual water refluence that prevents, through the cooperation of first check board and second check board, further prevents water refluence.

Description

Bronze stop check valve

Technical Field

The utility model relates to a check valve technical field especially relates to bronze stop check valve.

Background

The check valve is a valve whose opening and closing part is a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards, also called a check valve, a one-way valve, a backflow valve or an isolation valve, the valve clack movement mode is divided into lifting and swing type, the lifting check valve is similar to the structure of the stop valve, only a valve rod for driving the valve clack is lacked, the medium flows in from an inlet end and flows out from an outlet end, when the inlet pressure is larger than the sum of the weight of the valve clack and flow resistance thereof, the valve is opened, otherwise, the valve is closed when the medium flows backwards, the check valve is commonly used as a bottom valve of a water pumping device.

The check valve that ends among the prior art is in the use, because the impact force of backward flow water is great, probably the valve clack can be strikeed to water when the refluence, and then probably can cause the removal of valve clack, and the valve clack removes and can lead to sealed effect variation, can influence the valve clack and prevent the effect of water backward flow, and then one kind has can improve sealed effect and ends the check valve that ends and is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and providing a bronze stop check valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

bronze is by check valve, including the check valve body, this internal valve clack that is equipped with of check valve, be connected with the slide bar on the check valve body, the slide bar is corresponding with the valve clack, still establish the valve gap on the check valve body, this internal fixedly connected with dead lever of check valve, the first check plate of fixedly connected with on the dead lever, this internal rotation of check valve is connected with first pivot, fixedly connected with second check plate in the first pivot, second check plate cooperatees with first check plate, this internal fixedly connected with U template that still goes back of check valve, it is connected with the pulley to rotate on the U template, be equipped with the nylon rope on the pulley, nylon rope one end fixed connection is on the lateral wall at the bottom of the valve clack, nylon rope other end fixed connection is on the lateral wall that first pivot one end was kept away from to the.

Preferably, the second check plate comprises an upper check plate and a lower check plate, the upper check plate and the lower check plate are connected through a second rotating shaft, the upper check plate is matched with the lower check plate, and one end, away from the upper check plate, of the lower check plate is matched with the first check plate.

Preferably, the pulleys are fixedly connected with limiting rods, the number of the limiting rods is 3-5, and the limiting rods are uniformly distributed on the pulleys.

Preferably, the valve cover is provided with a sliding hole corresponding to the sliding rod, and a sealing ring is arranged at the joint of the valve cover and the sliding rod.

Preferably, the check valve body is internally provided with a limiting block which is abutted against the upper stop return plate.

Compared with the prior art, the utility model provides a bronze stop check valve possesses following beneficial effect:

1. the stop check valve is characterized in that the slide rod does not tightly abut against the valve clack by moving upwards, water enters through the inlet end of the check valve body, the valve clack is jacked up by water flow medium, the water flow medium extrudes the second check plate in the upward moving process of the valve clack, the lower check plate rotates by the lower check plate, the normal flow rate of the water flow medium is not influenced, when the check is needed, the valve clack is pressed by the slide rod through the lower slide rod, the valve clack pulls the nylon rope in the downward moving process of the valve clack, the lower check plate is pulled by the nylon rope, the lower check plate rotates along with the nylon rope, after rotating for a certain angle, the lower check plate is matched with the upper check plate, the valve clack continues to move downwards, the lower check plate is driven to rotate, when the lower check plate is matched with the first check plate, the valve clack moves downwards to the water inlet, the water inlet is sealed by the valve clack, water is effectively prevented from, further preventing the reverse flow of water.

Drawings

Fig. 1 is a first structural schematic diagram of a bronze check valve according to the present invention;

fig. 2 is a second schematic structural diagram of the bronze check valve according to the present invention;

FIG. 3 is a third schematic view of the bronze check valve according to the present invention;

FIG. 4 is a schematic view of a pulley connection of the bronze check valve according to the present invention;

fig. 5 is a partially enlarged schematic view of a portion a in fig. 1 of the bronze stop check valve according to the present invention.

In the figure: 1. a check valve body; 101. a valve flap; 102. a valve cover; 1021. a seal ring; 103. a slide bar; 104. a first rotating shaft; 1041. a second check plate; 1042. an upper return stop plate; 105. a second rotating shaft; 1051. a lower check plate; 106. a pulley; 1061. a limiting rod; 1062. a nylon cord; 1063. a U-shaped plate; 107. fixing the rod; 1071. a first check plate; 108. and a limiting block.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only 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 therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-5, bronze stop check valve, including check valve body 1, valve flap 101 is equipped with in check valve body 1, be connected with slide bar 103 on the check valve body 1, slide bar 103 is corresponding with valve flap 101, still establish valve gap 102 on check valve body 1, fixedly connected with dead lever 107 in check valve body 1, fixedly connected with first check plate 1071 on the dead lever 107, check valve body 1 internal rotation is connected with first pivot 104, fixedly connected with second check plate 1041 on the first pivot 104, second check plate 1041 cooperatees with first check plate 1071, still fixedly connected with U template 1063 in check valve body 1, the last pulley 106 that rotates of U template 1063, be equipped with nylon rope 1062 on the pulley 106, nylon rope 1062 one end fixed connection is on the bottom side wall of valve flap 101, the other end fixed connection of nylon rope 1062 is on the lateral wall that second check plate 1041 kept away from first pivot 104 one end.

The second check plate 1041 includes an upper check plate 1042 and a lower check plate 1051, the upper check plate 1042 and the lower check plate 1051 are connected by the second rotating shaft 105, the upper check plate 1042 matches with the lower check plate 1051, and one end of the lower check plate 1051 far from the upper check plate 1042 matches with the first check plate 1071.

Fixedly connected with gag lever post 1061 on the pulley 106, the number of gag lever post 1061 is 3, and evenly distributed blocks nylon rope 1062 through gag lever post 1061 on pulley 106, and then makes nylon rope 1062 can not drop from the spout of pulley 106, and the number through gag lever post 1061 is 3, has further improved the stable effect of nylon rope 1062 rotation in-process.

The valve cover 102 is provided with a sliding hole corresponding to the sliding rod 103, a sealing ring 1021 is arranged at the joint of the valve cover 102 and the sliding rod 103, and the sealing ring 1021 is arranged at the joint of the valve cover 102 and the sliding rod 103, so that the sealing performance of the check valve body 1 is further improved.

A limiting block 108 is arranged in the check valve body 1, and the limiting block 108 abuts against the upper stop return plate 1042.

By moving the sliding rod 103 upwards, the sliding rod 103 will not abut against the valve flap 101 tightly, water is fed through the inlet end of the check valve body 1, the valve flap 101 is jacked up through the water flow medium, in the process of moving the valve flap 101 upwards, the water flow medium will extrude the second check plate 1041, and will rotate through the lower check plate 1051, so the normal flow rate of the water flow medium will not be affected, when water backflow needs to be prevented, the sliding rod 103 will move the valve flap 101 through the sliding rod 103, in the process of moving the valve flap 101 downwards, the valve flap 101 will pull the nylon rope 1062, the lower check plate 1051 will rotate along with the nylon rope 1062, after rotating a certain angle, the lower check plate 1051 will cooperate with the upper check plate 1042, and will move downwards through the valve flap 101, so the lower check plate 1051 will continue to rotate, when the check plate 1051 cooperates with the first check plate 1071, the valve flap 101 will move downwards to the water inlet, and the water inlet will be sealed by the valve, and further effectively prevent water from flowing backwards, and the first check plate 1071 is matched with the second check plate 1041 to further prevent water from flowing backwards.

The limiting block 108 is abutted against the upper check plate 1042, so that the backflow water cannot drive the lower check plate 1051 to rotate reversely after the first check plate 1071 and the second check plate 1041 are matched.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Bronze stop check valve, including check valve body (1), be equipped with valve clack (101) in check valve body (1), be connected with slide bar (103) on check valve body (1), slide bar (103) are corresponding with valve clack (101), still establish valve gap (102) on check valve body (1), its characterized in that, fixedly connected with dead lever (107) in check valve body (1), fixedly connected with first check plate (1071) on dead lever (107), check valve body (1) internal rotation is connected with first pivot (104), fixedly connected with second check plate (1041) on first pivot (104), second check plate (1041) cooperatees with first check plate (1071), still fixedly connected with U template (1063) in check valve body (1), the last rotation connection of U template (1063) has pulley (106), be equipped with nylon rope (1062) on pulley (106), nylon rope (1062) one end fixed connection is on valve clack (101) bottom side wall, nylon rope (1062) other end fixed connection is kept away from the lateral wall of first pivot (104) one end in second check plate (1041).

2. The bronze stop check valve according to claim 1, wherein the second check plate (1041) comprises an upper check plate (1042) and a lower check plate (1051), the upper check plate (1042) and the lower check plate (1051) are connected by a second rotating shaft (105), the upper check plate (1042) is matched with the lower check plate (1051), and one end of the lower check plate (1051) far from the upper check plate (1042) is matched with the first check plate (1071).

3. The bronze stop check valve according to claim 2, characterized in that a limiting rod (1061) is fixedly connected to the pulley (106), and the number of the limiting rods (1061) is 3-5 and is uniformly distributed on the pulley (106).

4. The bronze stop check valve according to claim 1, characterized in that the valve cover (102) is provided with a slide hole corresponding to the slide rod (103), and a sealing ring (1021) is arranged at the joint of the valve cover (102) and the slide rod (103).

5. The bronze stop check valve according to claim 2, characterized in that a stop block (108) is disposed in the check valve body (1), and the stop block (108) abuts against the upper stop plate (1042).