Adjustable spherical check valve

Abstract

The utility model discloses an adjustable ball check valve which comprises a movable pipe and a fixed pipe, a ball valve is placed at the joint of the movable pipe and the fixed pipe, a protective shell is fixedly installed at one end of the movable pipe, a driver is fixedly connected to the inner wall of the protective shell, the output end of the driver is fixedly connected with a rotating rod, and the rotating rod is fixedly connected with a ball valve. And the rotating rod penetrates through the inner wall of the driver and extends to the inner side of the moving pipe, the end, located on the inner side of the protective shell, of the rotating rod is slidably connected with a threaded rod, an adjusting rod is slidably installed on the threaded rod, and the end face of the adjusting rod is fixedly connected with an adjusting block. The device can actively adjust the rubber ball and push the rubber ball to a closed position, so that when liquid flows back, pipelines can be separated in time, the situation that a large amount of liquid flows back and influences use of the device is avoided, meanwhile, a buffering structure is arranged in the device, the situation that the rubber ball is damaged when the rubber ball is pushed can be avoided, and the service life of the device is prolonged. And normal use of the device is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve field especially relates to adjustable ball check valve. BACKGROUND

[0002] Check valve is used for pipeline system medium when opening, closing when backflow, is one of the most commonly used equipment types of fluid transmission, and ball check valve realizes the opening and closing of the valve through the short stroke rolling of the rubber ball in the ball cover.

[0003] In the use process of the ball check valve, if the backflow water flow is large, the rubber ball can be lifted, which causes the rubber ball to fall in a short time. The existing check valve lacks active adjustment ability for the rubber ball, which causes problems in the use of the ball check valve, and is not conducive to its use. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of adjustable ball check valves to solve the shortcomings in prior art, such as: backflow water flow is large, the rubber ball can be lifted, which causes the rubber ball to fall in a short time. The existing check valve lacks active adjustment ability for the rubber ball, which causes problems in the use of the ball check valve, and is not conducive to its use.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] An adjustable ball check valve, comprising:

[0007] A mobile pipe and a fixed pipe are placed with a spherical valve at the connection of the mobile pipe and the fixed pipe, a protective shell is fixedly installed at one end of the mobile pipe, a drive is fixedly connected to the inner wall of the protective shell, a rotating rod is fixedly connected to the output end of the drive, the rotating rod penetrates the inner wall of the drive and extends to the inside of the mobile pipe, a threaded rod is slidably connected to one end of the rotating rod inside the protective shell, an adjusting rod is slidably installed on the threaded rod, an adjusting block is fixedly connected to the end face of the adjusting rod, a threaded sleeve is threadedly sleeved on the threaded rod, a fixed rod is fixedly connected to the side wall of the threaded sleeve, and the fixed rod is fixedly connected to the inner wall of the mobile pipe.

[0008] Preferably, a fixed cavity is opened in the inside of the threaded rod, the adjusting rod extends to the inside of the fixed cavity and is slidably connected to the inner wall of the fixed cavity, a fixed spring is fixedly connected to one end of the adjusting rod inside the fixed cavity, and the end of the fixed spring away from the adjusting rod is fixedly connected to the inner wall of the fixed cavity.

[0009] Preferably, a plurality of fixed bolts are fixedly installed on the protective shell, and the protective shell is fixedly connected to the mobile pipe through the fixed bolts.

[0010] Preferably, the top end of the fixed flange is fixedly provided with a reinforcing plate, which is fixedly connected with the side wall of the moving pipe and the bottom wall of the protective shell.

[0011] Preferably, the protective shell is provided with a control button corresponding to the driver.

[0012] Preferably, the two ends of the fixed pipe are fixedly provided with fixed flanges.

[0013] Compared with the prior art, the beneficial effects of the utility model are that the rubber ball can be actively adjusted and pushed to the closed position, so that when liquid backflow occurs, the pipe can be timely separated, and a large amount of liquid backflow is avoided, which influences the use of the device; meanwhile, the device is provided with a structure for buffering, so that the rubber ball is not damaged when being pushed, and the normal use of the device is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 A perspective structural schematic view of the adjustable ball check valve is provided for the utility model;

[0015] Fig. 2 A sectional perspective structural schematic view of the fixed pipe of the adjustable ball check valve is provided for the utility model;

[0016] Fig. 3 A sectional perspective structural schematic view of the threaded rod of the adjustable ball check valve is provided for the utility model.

[0017] In the figure: 1 moving pipe, 2 fixed pipe, 3 fixed flange, 4 protective shell, 5 ball valve, 6 driver, 7 rotating rod, 8 threaded rod, 9 adjusting rod, 10 adjusting block, 11 threaded sleeve, 12 fixed rod, 13 fixed cavity, 14 fixed spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] Reference Figs. 1-3 An adjustable ball check valve, comprising:

[0020] The mobile pipe 1 and the fixed pipe 2, the diameter of the mobile pipe 1 is greater than the diameter of the fixed pipe 2, so the spherical valve 5 can only move inside the mobile pipe 1 and cannot move into the fixed pipe 2, the connecting part of the mobile pipe 1 and the fixed pipe 2 is provided with the spherical valve 5, one end of the mobile pipe 1 is fixedly installed with the protective shell 4, the inner wall of the protective shell 4 is fixedly connected with the driver 6, the output end of the driver 6 is fixedly connected with the rotating rod 7, the rotating rod 7 penetrates through the inner wall of the protective shell 4 and extends to the inside of the mobile pipe 1, the connecting part of the rotating rod 7 and the protective shell 4 is provided with the sealing pad, one end of the rotating rod 7 located inside the driver 6 is slidably connected with the threaded rod 8, the threaded rod 8 is slidably installed with the adjusting rod 9, the end surface of the adjusting rod 9 is fixedly connected with the adjusting block 10, the threaded sleeve 11 is threadedly sleeved on the threaded rod 8, the side wall of the threaded sleeve 11 is fixedly connected with the fixed rod 12, and the fixed rod 12 is fixedly connected with the inner wall of the mobile pipe 1;

[0021] When the water pump is opened, the water flow impacts the spherical valve 5 to make it move along the mobile pipe 1, so as to open the fixed pipe 2, and after the water pump is closed, the spherical valve 5 falls down to block the fixed pipe 2, avoiding the backflow of water flow, if the water flow has backflowed, the backflowing water will make the spherical valve 5 unable to fall down, at this time, the driver 6 is started, the output end of the driver 6 drives the rotating rod 7 to rotate, the rotating rod 7 rotates to make the threaded rod 8 rotate, under the action of the threaded sleeve 11, the threaded rod 8 moves when rotating, the movement of the threaded rod 8 drives the adjusting rod 9 and the adjusting block 10 to move together, so as to push the spherical valve 5 to move, so that the spherical valve 5 seals the fixed pipe 2;

[0022] The inside of the threaded rod 8 is provided with the fixed cavity 13, the adjusting rod 9 extends to the inside of the fixed cavity 13 and is slidably connected with the inner wall of the fixed cavity 13, one end of the adjusting rod 9 located inside the fixed cavity 13 is fixedly connected with the fixed spring 14, and the end of the fixed spring 14 away from the adjusting rod 9 is fixedly connected with the inner wall of the fixed cavity 13;

[0023] When the adjusting block 10 pushes the spherical valve 5 to move, the fixed spring 14 can play a buffering effect, avoiding the adjusting rod 9 and the adjusting block 10 from pushing the spherical valve 5 too much, so as to cause damage to the spherical valve 5;

[0024] A plurality of fixed bolts are fixedly installed on the protective shell 4, and the protective shell 4 is fixedly connected with the mobile pipe 1 through the fixed bolts, so as to fixedly install the protective shell 4; the top end of the fixed flange 3 is fixedly installed with the reinforcing plate, the reinforcing plate is fixedly connected with the side wall of the mobile pipe 1 and the bottom wall of the protective shell 4, the reinforcing plate plays a supporting and reinforcing effect on the mobile pipe 1 and the protective shell 4, and improves the overall strength of the device;

[0025] The control button corresponding to the driver 6 is arranged on the protective shell 4, and the control button and the driver 6 are matched prior art, and the driver 6 can be controlled through the control button; the fixing flanges 3 are fixedly installed at two ends of the fixed pipe 2, so that the device and the pipeline are fixedly connected together.

[0026] In the utility model, when the device is used, the device and the pipeline are connected together through the fixing flanges 3, when the water pump is opened, the water flow impacts the spherical valve 5 and makes it move along the moving pipe 1, so that the fixed pipe 2 is opened, and after the water pump is closed, the spherical valve 5 falls and blocks the fixed pipe 2, so that the water flow is prevented from flowing back, if the water flow has flowed back, the water flowing back will make the spherical valve 5 unable to fall, at this time, the driver 6 is started, the output end of the driver 6 drives the rotary rod 7 to rotate, the rotary rod 7 rotates and makes the threaded rod 8 rotate, under the action of the threaded sleeve 11, the threaded rod 8 moves when rotating, the movement of the threaded rod 8 drives the adjusting rod 9 and the adjusting block 10 to move together, so that the spherical valve 5 is pushed to move, the spherical valve 5 seals the fixed pipe 2, and at the same time, in the process that the adjusting block 10 pushes the spherical valve 5 to move, the fixed spring 14 can play a buffering effect, so that the adjusting rod 9 and the adjusting block 10 are prevented from excessively pushing the spherical valve 5 and causing the spherical valve 5 to be damaged.

[0027] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. An adjustable ball check valve, characterized in that, include: A moving tube (1) and a fixed tube (2) are connected together. A ball valve (5) is placed at the connection between the moving tube (1) and the fixed tube (2). A protective shell (4) is fixedly installed at one end of the moving tube (1). An actuator (6) is fixedly connected to the inner wall of the protective shell (4). A rotating rod (7) is fixedly connected to the output end of the actuator (6). The rotating rod (7) passes through the inner wall of the actuator (6) and extends to the inner side of the moving tube (1). A threaded rod (8) is slidably connected to the end of the rotating rod (7) located inside the protective shell (4). An adjusting rod (9) is slidably installed on the threaded rod (8). An adjusting block (10) is fixedly connected to the end face of the adjusting rod (9). A threaded sleeve (11) is threaded onto the threaded rod (8). A fixed rod (12) is fixedly connected to the side wall of the threaded sleeve (11). The fixed rod (12) is fixedly connected to the inner wall of the moving tube (1).

2. The adjustable ball check valve according to claim 1, characterized in that, The threaded rod (8) has a fixed cavity (13) inside. The adjusting rod (9) extends into the inside of the fixed cavity (13) and is slidably connected to the inner wall of the fixed cavity (13). A fixing spring (14) is fixedly connected to one end of the adjusting rod (9) located inside the fixed cavity (13), and the end of the fixing spring (14) away from the adjusting rod (9) is fixedly connected to the inner wall of the fixed cavity (13).

3. An adjustable ball check valve according to claim 1, characterized in that, Multiple fixing bolts are fixedly installed on the protective shell (4), and the protective shell (4) is fixedly connected to the moving tube (1) through the fixing bolts.

4. An adjustable ball check valve according to claim 1, characterized in that, A reinforcing plate is fixedly installed on the top of the fixed flange (3), and the reinforcing plate is fixedly connected to the side wall of the moving pipe (1) and the bottom wall of the protective shell (4).

5. An adjustable ball check valve according to claim 1, characterized in that, The protective housing (4) is equipped with control buttons corresponding to the driver (6).

6. An adjustable ball check valve according to claim 1, characterized in that, Both ends of the fixed pipe (2) are fixedly installed with fixed flanges (3).

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