CN108885000B

CN108885000B - Fluid safety breaker

Info

Publication number: CN108885000B
Application number: CN201680083171.2A
Authority: CN
Inventors: 白翼志
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-15
Filing date: 2016-01-15
Publication date: 2020-01-31
Anticipated expiration: 2036-01-15
Also published as: WO2017120886A1; CN108885000A

Abstract

fluid safety breaker (20) is installed on the fluid conveying path, the fluid safety breaker (20) has composite switch (25) for breaking, releasing and adjusting the breaking responsiveness of fluid rush current, when the fluid rush current in the conveying path with improper large flow, the breaker can instantly break the fluid output, when the reason of the fluid rush current is eliminated, the composite switch can be pressed to release the rush current breaking, and the composite switch can be adjusted to change the responsiveness to the rush current breaking.

Description

Fluid safety breaker

Technical Field

The present invention is safety shut-off device installed on the fluid conveying path, which can instantaneously shut off the fluid output when the fluid rushes in the conveying path with an improper large flow.

Background

When the fluid has a leakage, the fluid may rush to the conveying path at an inappropriately large flow rate. Various fluid overflow valves installed in fluid pipelines are available in the market, which provide the function of automatically interrupting the output of fluid when the above situation occurs, so as to maintain the safety of the use of fluid. After the reason of improper flushing of the fluid is eliminated, the fluid output is recovered in a mode of manually resetting the overflow valve.

Referring to fig. 1 and 2, a conventional fluid superfluidizing valve 10 generally includes a valve tube 11 for delivering a fluid, balls 13 confined in ball spaces 12 in the valve tube 11, a regulator 14 coupled to a lower wall of the valve tube 11, and a reset switch 15 coupled to an upper wall of the valve tube 11. in case of a normal fluid supply, the fluid is output from a end of the valve tube 11 to the other end of the valve tube 11 through the ball spaces 12 and an output hole 16. in case of a fluid leakage, a fluid of a momentary large flow rate rushes into the valve tube 11, and the pressure of the rushing flow pushes the balls 13 toward the output hole 16 and closes it, thereby blocking the fluid output.a reason for the rushing of the fluid is eliminated, the reset switch 15 is pressed downward, the reset switch 15 pushes the balls 13 closing the output hole 16 downward by an inner push rod 151, and the output hole 16 is restored to be unblocked, and the regulator 14 is rotated by a tool to displace its thread, and the balls 13 held by the regulator 14 are displaced upward and downward in accordance with the height of the regulator 14, thereby blocking the fluid at different levels according to the fluid outlet pressure of the flush.

The regulator 14 and reset switch 15 of the fluid excess flow valve 10 are separate components, adding to the process of machining and assembly. Further, when the fluid excess flow valve 10 is installed in the fluid transfer path, it is necessary to keep the regulator 14 constantly downward, and if the regulator 14 is upward, the function of adjusting the level of the balls is disabled.

Technical problem

The problem to be solved by the fluid safety interrupter of the present invention is mainly the problem that the regulator and reset switch of the known fluid excess flow valve are separate components.

Technical solution

The fluid safety interrupter of the invention, comprising:

valve tube with ball space inside, wall groove on the inner wall of the valve tube corresponding to the ball space, end of the valve tube is fluid input end, another end is fluid output end, output hole on the fluid output end, input hole on the fluid input end, the input hole and the output hole are connected to the ball space;

combination switch, which is set on the tube wall of the valve tube and is opposite to the ball space, the combination switch includes:

coupled to the wall of the valve tube, the interior of the sleeve defining a space and a second space by means of rings disposed around the wall;

a pressing rod, including an end having a accommodating space therein and a rod tube connected to the end and having a penetrating space therein, the accommodating space and the penetrating space being communicated with each other, the pressing rod being inserted into the sleeve, the end being located in the space, the rod tube being inserted into the second space;

adjusting rod, which comprises a push top with containing space inside and a rod body connected with the push top;

the adjusting rod is arranged in the pressing rod in a penetrating way, the pushing top part is positioned in the accommodating space of the pressing rod, the rod body penetrates through the penetrating space of the pressing rod, the outer wall of the rod body is connected with the inner wall of the rod pipe through a thread section, and the end part of the rod body is provided with a tool groove;

ball located in the ball space and having penetrating part combined with the end of the spring in the adjusting rod, wherein the ball is pressed against the wall groove by the spring force of the spring;

pressing cap tightly fitted on the outer end of the pressing rod, the pressing cap having holes for exposing the tool groove of the adjusting rod;

A spring is inserted into the second space of the sleeve, and its end abuts against the ring and end abuts against the pressing cap.

Further , the input aperture is a slot.

Further , the sleeve of the combination switch is threadedly engaged with the wall of the valve tube.

Further , the outer wall of the tip is in contact fit with the inner wall of the th space of the sleeve, and the outer wall of the pushing top is in contact fit with the inner wall of the accommodating space of the tip.

, a leakage-proof ring is arranged between the end of the pressing rod and the ring of the sleeve, and the rod body of the adjusting rod is provided with at least leakage-proof ring which is tightly sealed with the inner wall of the penetrating space of the pressing rod.

Further , the fluid input end and the fluid output end are both externally threaded.

Advantageous effects

The safety breaker of the present invention combines the structures and functions of breaking, releasing and adjusting the breaking responsiveness of the fluid rush according to the flow rate with composite switches, and simplifies the processing and assembling processes of the safety breaker.

When the fluid rushes in the conveying path with an improper large flow, the safety breaker can instantly break the fluid output. After the reason of fluid rush current is eliminated, the mechanism of breaking rush current can be released by manually pressing the compound switch, and the fluid output can be recovered.

By rotating the adjusting rod, the responsiveness of the compound switch to the rush current interruption can be adjusted.

The ball of the composite switch is combined with the spring in the adjusting rod in a penetrating way through the penetrating part, and the ball is propped against the wall groove of the valve pipe by the elastic force of the spring, so that the ball is limited in the valve pipe properly and cannot roll randomly, the use direction of the safety breaker is not limited, and the safety breaker can be used horizontally, vertically or at any angle.

Drawings

FIG. 1 is a longitudinal sectional view of a conventional fluid superflow valve.

Fig. 2 is a second longitudinal sectional view of the conventional fluid overflow valve.

Fig. 3 is a sectional exploded view of a composite switch of the safety interrupter of the present invention.

FIG. 4 is a longitudinal sectional view of an example of the use of an embodiment of the present invention.

FIG. 5 is a cross-sectional schematic view of fluid rush interruption performed using an exemplary embodiment of the present invention.

FIG. 6 is a cross-sectional schematic view of the fluid rush interruption release using an exemplary embodiment of the present invention.

FIG. 7 is a cross-sectional view of an exemplary lever displacement according to the present invention.

FIG. 8 is a longitudinal sectional view of an example of use of embodiment of the present invention.

FIG. 9 is a cross-sectional schematic view of fluid rush interruption performed in accordance with an exemplary embodiment of the present invention.

FIG. 10 is a cross-sectional view of a second exemplary embodiment of the present invention for relieving fluid rush interruption.

FIG. 11 is a cross-sectional view of an exemplary two adjustment lever displacement of the present invention.

Description of the reference numerals

20-a fluid safety interrupter; 43-a penetration space; 21-valve tube; 44-a rod tube; 22-ball space; 50-adjusting rod;

221-a ball bearing; 51-an accommodating space; 222-a pull-through; 52-a push top; 23-a fluid input; 53-a shaft;

231-an input aperture; 54-a threaded segment; 24-a fluid output; 55-tool groove; 241-an output hole; 56-a spring;

25-a combination switch; 57-leak-stopping ring; 26-wall grooves; 60-pressing a cap; 30-a sleeve; 61-well; 31-loop; 62-a spring;

32- th space, 70-fluid regulator, 33-second space, 72-hose segment, 34-leak-stopping ring, 73-nut;

35-screw thread; 40-pressing the lever; 41-an accommodating space; 42-end.

Modes for carrying out the invention

For the purpose of illustrating the concepts described in section , various aspects of the embodiments are illustrated in terms of suitable proportions, dimensions, deformations or displacements, rather than in terms of actual components, as would be understood from the foregoing description.

Referring to fig. 3 and 4, the fluid safety barrier 20 of the present invention includes:

valve tube 21, wherein the valve tube 21 has ball space 22, the inner wall of the valve tube 21 is provided with wall groove 26 corresponding to the ball space 22, ball 221 is located in the ball space 22, the ball 221 has protruding ball surface block-shaped penetrating part 222, the end of the valve tube 21 is fluid input end 23, the other end is fluid output end 24, the fluid input end 23 and the fluid output end 24 respectively have input hole 231 and output hole 241 with diameter smaller than the ball 22.

combination switch 25 is disposed on the wall of the valve tube 21 and opposite to the ball space 22. the combination switch 25 comprises a sleeve 30 with coupled to the wall of the valve tube 21 by a screw 35, wherein the sleeve 30 defines ,

space

32 and , 33 by rings 31 annularly disposed along the wall of the sleeve.

A pressing rod 40 comprises a head 42 with a containing space 41 inside and a rod tube 44 connected to the head 42 and having a penetrating space 43 inside, the containing space 41 and the penetrating space 43 are communicated, the pressing rod 40 is arranged in the sleeve 30 in a penetrating way, the head 42 is positioned in the th space 32, the outer wall of the head 42 is in contact fit with the inner wall forming the th space 32, the rod tube 44 is arranged in the second space 33 in a penetrating way, and a leakage-stopping ring 34 is arranged between the head 42 and the ring 31.

an adjusting rod 50, comprising a pushing top 52 with a containing space 51 therein and a rod 53 connected to the pushing top 52, the containing space 51 is provided with a spring 56 , the end of the spring 56 holds the ball 221, the penetrating part 222 of the ball 221 and the end of the spring 56 are penetrated and combined with each other, the spring 56 has a spring force to push the ball 221 against and contact the wall groove 26, the adjusting rod 50 is penetrated in the pushing rod 40, the pushing top 52 is located in the containing space 41, the outer wall of the pushing top 52 is contacted and matched with the inner wall forming the containing space 41, the rod 53 is provided with at least leakage-proof ring 57 penetrating in the penetrating space 43, the leakage-proof ring 57 is contacted and matched with the inner wall forming the penetrating space 43, the outer wall of the rod 53 and the inner wall of the rod tube 44 are connected with each other by a thread section 54, the end of the rod 53 is provided with a tool groove 55 of for allowing a tool (not shown) to rotate the rod 53 through the tool groove 55 to displace the adjusting rod 50 along the thread section 54 to change the position of the pushing top of the ball 22 in the containing space 52.

pressing cap 60 tightly fitted on the outer end of the rod tube 44 of the pressing rod 40, the pressing cap 60 has holes 61 for exposing the tool groove 55 of the adjusting rod 50 so that hand tools can contact the tool groove 55, spring 62 is sleeved outside the rod tube 44 of the pressing rod 40 and located in the second space 33 of the sleeve 30, the end 62 of the spring 62 abuts against the ring 31, and the other end abuts against the pressing cap 60, the pressing cap 60 is pressed to move the pressing rod 40 and the adjusting rod 50 toward the ball space 22, so that the end 42 of the pressing rod 40 and the pushing top 52 of the adjusting rod 50 protrude toward the ball space 22, the spring 62 is used to return the pressing cap 60 when the external force pressing the pressing cap 60 is released, and in turn returns the pressing rod 40 and the adjusting rod 50.

As shown in fig. 4, the elastic force of the spring 56 presses the ball 221 against the wall groove 26, and when the flow rate of the fluid is normal, the fluid is input from the fluid input port 23 and the input port 231 of the valve tube 21, and is output from the output port 241 and the fluid output port 24 through the ball space 22.

As shown in fig. 5, when a large instantaneous flow occurs, the fluid rushes into the valve pipe 21, and the pressure of the rushing flow pushes the ball 221 out of the wall groove 26 and toward the output hole 241 to close the same, thereby blocking the output of the fluid rushing flow and activating a rushing-off mechanism. When the ball 221 is pushed toward the output hole 241, the ball 221 is displaced to compress and bend the spring 56 because the insertion portion 222 of the ball 221 and the end of the spring 56 are inserted into each other.

As shown in fig. 6, when the cause of the fluid rush is eliminated, the pressing cap 60 can be manually pressed to move the pressing rod 40 and the adjusting rod 50 toward the ball space 22, the end 42 of the pressing rod 40 and the pushing top 52 of the adjusting rod 50 protrude toward the ball space 22, the spring 56 is compressed to push open the ball 221 closing the output hole 241, the output hole 241 is restored to be unblocked, and the rush current blocking mechanism is released. The external force pressing the pressing cap 60 is released, and the spring 62 releases energy to reset the pressing cap 60, the pressing rod 40 and the adjusting rod 50 to the original position.

Referring to fig. 7, the working end of the screwdriver (not shown) is attached to the tool slot 55 of the adjustment lever 50 through the hole 61 of the pressing cap 60, and drives the adjustment lever 50 to rotate, so that the adjustment lever 50 follows the displacement of the threaded section 54, and the protrusion amount of the pushing top portion 52 in the ball space 22 and the compression amount of the spring 56 are adjusted, thereby adjusting and correcting the elastic force of the spring 56; the pushing force of the spring 56 to the ball 221 can be adjusted, so as to change the response of the fluid rush interruption, and the fluid rush interruption according to different pressures can be interrupted. For example: increasing the compression of the spring 56, the spring 56 increases the urging force of the ball 221 against the wall groove 26, so that a fluid with a larger pressure can pass through, i.e. a higher rush current pressure is required to start the rush current blocking mechanism; conversely, by decreasing the compression amount of the spring 56, the spring 56 decreases the urging force of the ball 221 against the wall groove 26, so that a fluid with a small pressure passes through the spring, and the rush current blocking mechanism can be activated by a slightly higher rush current pressure.

Fig. 4 to 7 show usage examples of the fluid safety interrupter 20 of the present invention, fig. 8 to 11 show a second usage example of the fluid safety interrupter 20, the difference between the two usage examples lies in the position of the combination switch 25, in usage example, the combination switch 25 is turned downward, in second usage example, the combination switch 25 is turned upward, and all the functions in usage example are reproducible in the second usage example.

As shown in fig. 8, the elastic force of the spring 56 presses the ball 221 against the wall groove 26, and when the flow rate of the fluid is normal, the fluid is input from the fluid input port 23 and the input port 231 of the valve tube 21, and is output from the output port 241 and the fluid output port 24 through the ball space 22.

As shown in fig. 9, when a large instantaneous flow occurs, the fluid rushes into the valve pipe 21, and the pressure of the rushing flow pushes the ball 221 out of the wall groove 26 and toward the output hole 241 to close the same, thereby blocking the output of the fluid rushing flow and activating a rushing-off mechanism.

As shown in fig. 10, after the cause of the fluid rush is eliminated, the pressing cap 60 can be manually pressed, the pressing rod 40, the adjusting rod 50 and the spring 56 are linked, the ball 221 closing the output hole 241 is pushed downwards, the output hole 241 is restored to be unblocked, and the rush interruption mechanism is released.

As shown in fig. 11, the working end of the screwdriver (not shown) is attached to the tool slot 55 of the adjustment lever 50 through the hole 61 of the pressing cap 60, and the adjustment lever 50 is rotated to displace the adjustment lever 50 along with the threaded section 54, thereby adjusting the position of the pushing part 52 in the ball space 22. Since the spring 56 is interposed between the balls 221 and the ejector 52, the amount of compression of the spring 56 is changed when the ejector 52 is displaced. The more the pushing top part 52 protrudes in the ball space 22, the greater the compression of the spring 56, and is suitable for blocking the fluid rush flow with larger pressure; conversely, the less the pushing top 52 protrudes into the ball space 22, the less the spring 56 is compressed, and the smaller the pressure of the fluid rush is.

Referring to fig. 3 to 11, in the embodiment of the safety interrupter 20 of the present invention, the fluid input end 23 and the fluid output end 24 are both externally threaded pipe openings.

The ball 221 of the combination switch 25 is inserted into the spring 56 of the adjusting lever 50 through the insertion portion 222, and the spring 56 pushes the ball 221 against the wall groove 26 of the valve tube 21, so that the ball 221 is properly limited in the valve tube 21 and does not roll freely, and thus the safety interrupter can be used horizontally, vertically, or at any angle. By horizontal is meant that the

fluid inputs

23 and 24 are oriented to the left or right, and the combination switch 25 is oriented up or down as shown. The vertical use means that the fluid input port 23 and the fluid output port 24 are directed upward or downward, and the composite switch 25 is used to the left or right as shown in the drawing. In other words, the use direction of the safety barrier is not limited.

Claims

1, A fluid safety interrupter, comprising:

combination switch, which is set on the tube wall of the valve tube and opposite to the ball space, and comprises a sleeve combined with the tube wall of the valve tube, the sleeve is internally provided with a ring along the wall surface to define a th space and a second space;

spring is arranged in the containing space of the adjusting rod, the adjusting rod is arranged in the pressing rod in a penetrating way, the pushing top part is positioned in the containing space of the pressing rod, the rod body is arranged in the penetrating space of the pressing rod in a penetrating way, the outer wall of the rod body is connected with the inner wall of the rod pipe by thread sections, and the end part of the rod body is provided with a tool groove;

2. A fluid safety interrupter as defined in claim 1 wherein the input aperture is an elongated hole.

3. The fluid safety interrupter of claim 1, wherein the sleeve of the combination switch is threadedly engaged with the wall of the valve tube.

4. The fluid safety interrupter of claim 1, wherein the outer wall of the tip is in contact engagement with the inner wall of the th space of the sleeve, and the outer wall of the pushing portion is in contact engagement with the inner wall of the receiving space of the tip.

5. A fluid safety interrupter as defined in claim 1 wherein leak-proof rings are provided between the end of the pressing rod and the collar of the sleeve, and the stem of the regulating rod is provided with at least leak-proof rings which are closely fitted to the inner wall of the penetrating space of the pressing rod.

6. The fluid safety interrupter of claim 1, wherein the fluid input and the fluid output are externally threaded nozzle structures.

A combination switch of the fluid safety interrupter of claim 7, , comprising:

sleeve, the inside of which defines a space and a second space by means of rings that are arranged around the wall;