Bidirectional non-return floating ball safety valve

Abstract

The utility model provides a bidirectional non-return floating ball safety valve, which relates to the field of non-return floating ball safety valves and comprises a non-return safety valve body and a floating ball, the floating ball is plugged on the inner side wall of the non-return safety valve body, a small motor is fixed on the upper surface of the non-return safety valve body, and the lower end of the small motor is coupled with a transmission block. A center column is connected to the lower end of the transmission block through a fixing column, a circulation plate and a non-return plate are symmetrically fixed to the outer column face of the center column, an arc-shaped air bag adheres to the spherical face of the left side of the floating ball, a limiting frame plate is fixed to the left side face of the arc-shaped air bag, and an arc-shaped groove is formed in the left side end of the limiting frame plate. The check valve solves the problem that in the prior art, a floating ball in a check valve can float upwards at any angle, so that the floating ball is prone to being clamped when making contact with a positioning ball, and normal check operation is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to check ball safety valve technical field, concretely relates to a kind of two-way check ball safety valve. BACKGROUND

[0002] Two-way check ball safety valve is a kind of valve that combines the function of two-way check valve and safety valve, mainly used to control the flow direction of fluid, prevent reverse flow, and automatically release pressure when pressure is too high, protect system, prior art (announcement number:CN202323332994.0) a straight-through type ball check valve, the application technical scheme is described in the document, "the application technical scheme is set by valve body, positioning cylinder, shell, ball, sealing ring, positioning ball and return spring, when using, it can be reset by positioning ball cooperation return spring drive ball, and the wear of ball is reduced by the tangency of two balls, further improve the service life of check valve, the positioning groove on positioning cylinder and sealing ring can be engaged, so that the through opening of ball to positioning cylinder is blocked, the position limiting effect of ball can be ensured by the weight of return spring and positioning ball, the flow of medium in one direction is ensured, and the practicability of check valve is further ensured", but the ball in check valve in prior art can float at any angle, which can cause the ball to be stuck when contacting the positioning ball, affecting normal check operation. SUMMARY

[0003] To overcome the defects of the prior art, a two-way check ball safety valve is provided to solve the problem that the ball in the check valve in the prior art can float at any angle, which can cause the ball to be stuck when contacting the positioning ball, affecting normal check operation.

[0004] To achieve the above object, a two-way check ball safety valve is provided, comprising: a check safety valve body and a ball, the inside wall of the check safety valve body is blocked by the ball,

[0005] A small motor is fixed on the upper surface of the check safety valve body, a transmission block is connected to the lower end of the small motor, a center column is connected to the lower end of the transmission block through a fixed column, a flow-through plate and a check plate are fixed symmetrically on the outer column surface of the center column, an arc-shaped air bag is bonded to the left spherical surface of the ball, a limit frame plate is fixed to the left side of the arc-shaped air bag, and an arc-shaped groove is formed in the left side end of the limit frame plate.

[0006] Further, a fluid passage is provided in the inside of the check safety valve body, a second passage opening is provided on the right side of the fluid passage; and the ball is close to the second passage opening.

[0007] Further, a first passage opening is provided on the left side of the fluid passage, and a differential pressure monitor is installed on the front surface of the check safety valve body; and the differential pressure monitor is electrically connected to the small motor.

[0008] Further, the fluid passage is provided with a sliding groove in front and back, and a sliding block is slidably connected to the inner side of the sliding groove; and the sliding block is symmetrically fixed to the front and back ends of the limiting frame plate.

[0009] Further, the outer side of the transmission block is matched with the inner side of the valve surface of the check safety valve body through a sealing ring, and a water blocking washer is sleeved on the column surface of the fixed column.

[0010] Further, the side end of the check plate is connected with the flow-through plate through a connecting plate; and the check plate, the connecting plate and the flow-through plate are distributed around the outer side of the center column.

[0011] Further, the rubber pad is attached to the right side of the ball surface of the floating ball, and the flow-through plate and the check plate are correspondingly inserted into the arc-shaped groove.

[0012] The beneficial effects of the utility model lie in that the bidirectional check floating ball safety valve utilizes the pressure difference monitor, the small motor, the flow-through plate and the check plate to constitute a bidirectional check assembly, the rotating flow-through plate and check plate are respectively resisted in the limiting frame plate groove of the side end of the floating ball, the floating ball is in the open or blocked state to control the flow of fluid, the bidirectional check floating ball safety valve is convenient for efficient control of the running state of the floating ball, prevents the fluid flowing in reverse or in the opposite direction from passing through the bidirectional check floating ball safety valve, enhances the safety protection of the bidirectional check floating ball safety valve, and guarantees that the bidirectional check floating ball safety valve controls the flow of fluid more stably. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view structural schematic diagram of the bidirectional check floating ball safety valve of the utility model embodiment.

[0014] Fig. 2 It is a front view sectional structure schematic diagram of the bidirectional check floating ball safety valve of the utility model embodiment.

[0015] Fig. 3 It is a top view connecting structure schematic diagram of the flow-through plate and the check plate of the utility model embodiment.

[0016] Fig. 4 It is a top view partial sectional structure schematic diagram of the limiting frame plate and the floating ball of the utility model embodiment.

[0017] In the drawing: 1, check safety valve body; 11, first channel opening; 12, pressure difference monitor; 13, second channel opening; 14, fluid passage; 15, sliding groove; 2, flow-through plate; 21, center column; 22, water blocking washer; 23, small motor; 24, transmission block; 25, sealing ring; 26, fixed column; 3, check plate; 31, connecting plate; 4, floating ball; 41, rubber pad; 5, limiting frame plate; 51, arc-shaped air bag; 52, sliding block; 53, arc-shaped groove. DETAILED DESCRIPTION

[0018] Referring to Figs. 1 to 4 The utility model provides a kind of two-way check ball float safety valve, comprising: check safety valve body 1 and float ball 4, the inside wall of check safety valve body 1 is blocked with float ball 4,

[0019] Small motor 23 is fixed on the upper surface of check safety valve body 1, the lower end of small motor 23 is connected with transmission block 24, the lower end of transmission block 24 is connected with center column 21 by fixed column 26, center column 21 outer column surface is fixed with flow-through plate 2 and check plate 3, the left side of float ball 4 is bonded with arc-shaped air bag 51, the left side of arc-shaped air bag 51 is fixed with limit frame plate 5, and arc-shaped groove 53 is formed in the left side end of limit frame plate 5.

[0020] When fluid enters through the right side of check safety valve body 1, pressure difference monitor 12 controls small motor 23 to rotate flow-through plate 2 to the recess of limit frame plate 5, so that the entering fluid pushes float ball 4 to move left, and the fluid flows out from the left side through the fluid passage 14 in check safety valve body 1, when no fluid flows into the right side of check safety valve body 1, pressure difference monitor 12 controls small motor 23 to rotate check plate 3 to the recess of limit frame plate 5, and the rotating check plate 3 pushes float ball 4 to move right to block at fluid passage 14, to prevent the fluid flowing from the left side or reversely from flowing out from the right side of check safety valve body 1.

[0021] In the embodiment, the inside of check safety valve body 1 is provided with fluid passage 14, the right side of fluid passage 14 is provided with second passage opening 13, and float ball 4 is close to second passage opening 13. The left side of fluid passage 14 is provided with first passage opening 11, and pressure difference monitor 12 is installed on the front surface of check safety valve body 1, and pressure difference monitor 12 is electrically connected with small motor 23. The front and back surfaces of fluid passage 14 are provided with sliding groove 15, and sliding block 52 is slidably connected in the inside of sliding groove 15, and sliding block 52 is symmetrically fixed at the front and back end surfaces of limit frame plate 5.

[0022] As a preferred embodiment, second passage opening 13 is a positive liquid inlet, first passage opening 11 is a liquid outlet, and pressure difference monitor 12 receives the detection of pressure difference gauge to control the rotation of small motor 23, to automatically and efficiently control the fluid flow in two-way check ball float safety valve. The sliding connection of limit frame plate 5 facilitates to limit the floating position of float ball 4, to avoid that float ball 4 is difficult to correctly block at the side end of second passage opening 13.

[0023] In the embodiment, the outside of transmission block 24 is matched with the inside of the valve surface of check safety valve body 1 through sealing ring 25, and water-blocking washer 22 is sleeved on the column surface of fixed column 26.

[0024] As a preferred embodiment, the sealing ring 25 and the water-blocking washer 22 both play a sealing and water-blocking role to prevent liquid in the check safety valve body 1 from leaking out. The transmission block 24 drives the lower end of the center column 21 to rotate 180 degrees through the driving of the small motor 23, so that the flow-through plate 2 or the check plate 3 is rotated to the arc-shaped groove 53.

[0025] In the embodiment, the side end of the check plate 3 is connected to the flow-through plate 2 through the connecting plate 31, and the check plate 3, the connecting plate 31 and the flow-through plate 2 are distributed around the outer side of the center column 21. The rubber pad 41 is bonded to the right side of the spherical surface of the floating ball 4, and the flow-through plate 2 and the check plate 3 are respectively inserted into the arc-shaped groove 53.

[0026] As a preferred embodiment, the rubber pad 41 facilitates to reduce the friction between the spherical surface of the floating ball 4 and the fluid passage 14. The flow-through plate 2 and the check plate 3 are respectively rotated and inserted into the arc-shaped groove 53 of the limiting frame plate 5 through the rotation of the center column 21, so that the floating ball 4 moves left and right, and the floating ball 4 is in an open or blocked state, which facilitates to prevent the fluid flowing in reverse or in the reverse direction from passing through the bidirectional check floating ball safety valve.

[0027] The bidirectional check floating ball safety valve can effectively solve the problem that the floating ball in the check valve in the prior art can be floated at an arbitrary angle, which causes the floating ball to be easily stuck when contacting the positioning ball, thereby affecting the normal check operation. The bidirectional check floating ball safety valve facilitates to efficiently control the operation state of the floating ball in the bidirectional check floating ball safety valve, prevents the fluid flowing in reverse or in the reverse direction from passing through the bidirectional check floating ball safety valve, enhances the safety protection of the bidirectional check floating ball safety valve, and guarantees that the bidirectional check floating ball safety valve more stably controls the flow of fluid, and is suitable for the bidirectional check floating ball safety valve.

Claims

1. A bidirectional check float and ball safety valve, comprising: The application discloses a check safety valve body (1) and a floating ball (4), wherein the inside wall of the check safety valve body (1) is blocked by the floating ball (4). A small motor (23) is fixed to the upper surface of the check safety valve body (1), the lower end of the small motor (23) is connected with a transmission block (24) through a shaft, the lower end of the transmission block (24) is connected with a center column (21) through a fixed column (26), the center column (21) is fixed with a flow-through plate (2) and a check plate (3) on the outer column surface in a symmetrical mode, the left spherical surface of the floating ball (4) is bonded with an arc-shaped air bag (51), the left side surface of the arc-shaped air bag (51) is fixed with a limiting frame plate (5), and the left end of the limiting frame plate (5) is provided with an arc-shaped groove (53).

2. A two-way check float and ball safety valve according to claim 1, wherein, The inside of the check safety valve body (1) is provided with a fluid channel (14), the right side of the fluid channel (14) is provided with a second channel opening (13), and the floating ball (4) is arranged close to the second channel opening (13).

3. A two-way check float and ball safety valve according to claim 2, wherein, The left side of the fluid channel (14) is provided with a first channel opening (11), the front surface of the check safety valve body (1) is installed with a differential pressure monitor (12), and the differential pressure monitor (12) is electrically connected with the small motor (23).

4. A two-way check float and ball safety valve according to claim 3, wherein, The front and back surfaces of the fluid channel (14) are provided with sliding grooves (15), the inside of the sliding grooves (15) is slidably connected with sliding blocks (52), and the sliding blocks (52) are fixed on the front and back end surfaces of the limiting frame plate (5) in a symmetrical mode.

5. A two-way check float and ball safety valve according to claim 1 wherein, The outside of the transmission block (24) is matched with the inside of the upper valve surface of the check safety valve body (1) through a sealing ring (25), and the fixed column (26) is sleeved with a water-blocking washer (22).

6. A two-way check float and ball safety valve according to claim 1 wherein, The side end of the check plate (3) is connected with the flow-through plate (2) through a connecting plate (31), and the check plate (3), the connecting plate (31) and the flow-through plate (2) are distributed around the outer side surface of the center column (21).

7. A two-way check float and ball safety valve according to claim 1 wherein, The right spherical surface of the floating ball (4) is bonded with a rubber pad (41), and the flow-through plate (2) and the check plate (3) are inserted into the arc-shaped groove (53) in a corresponding mode.

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