CN111322433B - Control valve with multiple outlets for balanced output of liquid - Google Patents

Abstract

A control valve with multiple outlets for balanced output of liquid is composed of a casing, three valve bodies and two pistons. The surface of the shell is provided with an inlet and three outlets, and a diversion channel, three valve body containing grooves and a balance channel are arranged in the shell. The flow dividing channel is communicated with the inlet and the valve body containing groove. The balance channel is communicated with the valve body containing groove and the outlet. The valve bodies are respectively arranged in the valve body containing grooves. The two pistons are movably arranged in the balance channel. Therefore, the liquid is output from the outlets at a stable flow rate and a stable flow speed by the plurality of pistons which are arranged in the balance channel and can move freely, the problem of small and large flow rate is solved, and the effect of balanced output of the liquid by the plurality of outlets is achieved.

Description

Control valve with multiple outlets for balanced output of liquid

Technical Field

The invention relates to a liquid control valve, in particular to a control valve with multiple outlets for balanced output of liquid.

Background

A common liquid control valve is a one-in two-out three-way valve. Both outlets are provided with a valve body to regulate the flow rate and flow velocity of the liquid output from the outlets.

However, the conventional liquid control valve has only two outlets, so that it can supply liquid to only an external device. If the total number of the external devices is three, the user must prepare two fluid control valves, one of which is connected to two external devices and the other of which is separately connected to the other external device. Such an arrangement can create several problems: firstly, the flow and the flow rate provided by one liquid control valve to the external device are quite unstable and have the problem of being neglected; secondly, the other outlet of the other liquid control valve is not used for any purpose; thirdly, the cost of two liquid control valves is higher than that of a single liquid control valve.

Disclosure of Invention

The main objective of the present invention is to provide a multi-outlet balanced liquid output control valve, which utilizes a plurality of pistons disposed in a balanced channel and capable of moving freely to output liquid from a plurality of outlets at a very stable flow rate and flow velocity without the problem of small or large flow rate, thereby achieving the effect of balanced liquid output from a plurality of outlets.

To achieve the above objective, the present invention provides a multi-outlet balanced fluid output control valve, which includes a housing, a three-valve body, and two pistons. The surface of the shell is provided with an inlet and three outlets, and a diversion channel, three valve body containing grooves and a balance channel are arranged in the shell. The flow dividing channel is communicated with the inlet and the valve body containing groove. The balance channel is communicated with the valve body containing groove and the outlet. The inlet is used for connecting a liquid source, and the liquid source provides liquid to enter the valve body containing groove through the inlet and the flow dividing channel in sequence. The valve bodies are respectively arranged in the valve body containing grooves and used for regulating and controlling the flow and the flow speed of liquid entering the balance channel through the valve bodies. The two pistons are movably arranged in the balance channel.

When one valve body is opened and the other valve body is closed, a liquid enters the balance channel through one valve body and pushes the two pistons to move, so that the two pistons are far away from the input end of one outlet, the liquid is enabled to flow out from one outlet, and meanwhile, one piston blocks the liquid to prevent the liquid from flowing out from the other two outlets.

When the two valve bodies are opened and the other valve body is closed, the two liquids enter the balance channel through the two valve bodies and push the two pistons to move, so that the two pistons are far away from the input ends of the two outlets, the two liquids flow out from the two outlets, and meanwhile, at least one piston blocks at least one liquid to prevent the at least one liquid from flowing out from the other outlet.

When the valve body is completely opened, the three liquids enter the balance channel through the valve body and push the two pistons to move, so that the two pistons are far away from the input end of the outlet, and the three liquids flow out from the outlet.

Preferably, the valve body receiving groove is connected to the balance channel by a first guide channel, a second guide channel and a third guide channel, respectively, the outlet is connected to the balance channel by a first connection channel, a second connection channel and a third connection channel, respectively, and the balance channel has a first closed end and a second closed end.

The output end of the first guide channel and the input end of the first connecting channel are close to the first closed end of the balance channel, and the output end of the first guide channel and the input end of the first connecting channel are staggered.

The output end of the second guide channel is positioned between the output end of the first guide channel and the output end of the third guide channel, and the input end of the second connecting channel is positioned between the input end of the first connecting channel and the input end of the third connecting channel.

The output end of the third guide channel and the input end of the third connecting channel are close to the second closed end of the balance channel, and the output end of the third guide channel and the input end of the third connecting channel are staggered.

Preferably, the second connecting channel includes a first branch channel and a second branch channel, the output end of the second guiding channel is offset from the input end of the first branch channel, the output end of the second guiding channel is offset from the input end of the second branch channel, and the output end of the second guiding channel faces the wall surface between the input end of the first branch channel and the input end of the second branch channel.

Preferably, the distance between the output end of the first guide channel and the first closed end of the balance channel is less than that between the input end of the first connecting channel and the first closed end of the balance channel, and the distance between the output end of the third guide channel and the second closed end of the balance channel is less than that between the input end of the third connecting channel and the second closed end of the balance channel.

Preferably, each piston comprises a plug body, a first rod part and a second rod part, the outer diameter of the plug body is smaller than the inner diameter of the balance channel, the length of the plug body is larger than the diameter of the input end of the first connecting channel, the diameter of the input end of the first branch channel, the diameter of the input end of the second branch channel and the diameter of the input end of the third connecting channel, the first rod part is axially connected to one end of the plug body far away from the other piston, the second rod part is axially connected to one end of the plug body near the other piston, the outer diameters of the first rod part and the second rod part are smaller than the outer diameter of the plug body, the length of the first rod part of one piston is larger than the distance between the output end of the first guide channel and the first closed end of the balance channel, the length of the first rod part of one piston is smaller than the distance between the input end of the first connecting channel and the first closed end of the balance channel, and the length of the first rod part of the other piston is larger than the distance between the output end of the third guide channel and the second closed end of the balance channel The length of the first rod part of the other piston is smaller than the distance between the input end of the third connecting channel and the second closed end of the balance channel, the sum of the lengths of the second rod parts of the two pistons is larger than the diameter of the output end of the second guide channel, and the sum of the lengths of the second rod parts of the two pistons is smaller than the distance from the outermost side of the input end of the first branch channel to the outermost side of the input end of the second branch channel.

Preferably, the surface of the casing is provided with an overflow port, the casing is internally provided with an overflow valve containing groove and three pressure relief channels, the overflow valve containing groove is communicated with the flow dividing channel and the overflow port, the pressure relief channels are respectively communicated between the overflow valve containing groove and the valve body containing groove, the control valve for multi-outlet balanced output of liquid further comprises an overflow valve, the overflow valve is arranged in the overflow valve containing groove, liquid which does not pass through the valve body in the flow dividing channel flows out from the overflow port through the overflow valve, and part of liquid permeates into the overflow valve and enters the valve body containing groove through the pressure relief channels.

Preferably, each valve body comprises a needle valve and a knob, the needle valve is disposed in one of the valve body accommodating grooves, and the knob is disposed at one end of the needle valve, located outside the housing, and used for controlling the depth of the needle valve extending into the valve body accommodating groove.

Preferably, each valve body is a solenoid valve.

Preferably, the housing has a switch valve receiving groove therein, the multi-outlet balanced liquid output control valve further includes a switch valve disposed in the switch valve receiving groove, extending to the diversion channel, and having one end protruding outside the housing, the switch valve being configured to regulate and control the flow rate and velocity of the liquid entering the diversion channel through the switch valve.

Preferably, the casing has a pressure relief valve containing groove therein, the control valve for balancing output liquid at multiple outlets further includes a high pressure relief valve, the high pressure relief valve is disposed in the pressure relief valve containing groove, extends to the diversion channel, and has one end protruding out of the casing, and the high pressure relief valve is used for reducing the pressure of liquid in the diversion channel.

The invention has the advantages that by the plurality of pistons which are arranged in the balance channel and can move freely, one, two or three liquid entering the balance channel through the valve body can regulate and control the flow and the flow speed output to the outlet through the movement of the plurality of pistons, so that the liquid can be output from the outlet at a very stable flow and flow speed, the problem of small and large flow is avoided, and the effect of balanced output of the liquid by a plurality of outlets is achieved.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present invention.

Fig. 2 is a perspective view of another angle of the first embodiment of the present invention.

Fig. 3 is an exploded view of a first embodiment of the present invention.

Fig. 4 is a schematic configuration diagram of the inside of the housing of the first embodiment of the present invention.

Fig. 5 is a sectional view of the inside of the housing of the first embodiment of the present invention.

Fig. 6 is a schematic diagram showing the connection relationship of the elements of the first embodiment of the present invention.

Fig. 7 is a schematic diagram of the opening and closing of the switch valve of the first embodiment of the present invention.

Fig. 8 is a schematic view of the piping flow of liquid inside the housing of the first embodiment of the present invention.

Fig. 9 to 15 are schematic views of seven flow rate control methods according to the present invention, respectively.

Fig. 16 is a perspective view of a second embodiment of the present invention.

Fig. 17 is an exploded view of a second embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in more detail with reference to the drawings and the reference numerals, so that those skilled in the art can implement the embodiments of the present invention after studying the specification.

Referring to fig. 1 to 6, the present invention provides a multi-outlet balanced fluid output control valve, which includes a housing 10, three valve bodies 20, 30, and 40, and two pistons 50 and 60. The housing 10 has an inlet 101 and three outlets 102, 103, 104 on the surface, and the housing 10 has a diversion passage 11, three valve containers 12, 13, 14 and a balance passage 15 inside. The flow dividing channel 11 communicates with the inlet 101 and the valve body pockets 12, 13, 14. The equalization channel 15 communicates with the valve body pockets 12, 13, 14 and the outlets 102, 103, 104. The inlet 101 is connected to a liquid source 100. the liquid source 100 provides liquid to enter the valve body vessels 12, 13, 14 through the inlet 101 and the diversion passage 11 in sequence. The valve bodies 20, 30 and 40 are respectively arranged in the valve body accommodating grooves 12, 13 and 14 and used for regulating and controlling the flow and the flow rate of liquid entering the balance channel 15 through the valve bodies 20, 30 and 40. The pistons 50, 60 are movably disposed in the balance passage 15.

As shown in fig. 1, 2 and 3, the housing 10 has a switch valve receiving groove 191 therein, the control valve for multi-outlet balanced output of liquid of the present invention further includes a switch valve 70, the switch valve 70 is disposed in the switch valve receiving groove 191, extends to the branch passage 11, and has one end protruding out of the housing 10, the switch valve 70 is used for regulating and controlling the flow rate of the liquid entering the branch passage 11 through the switch valve 70. More specifically, the switching valve 70 includes a spool 71 and a lever 72. The valve member 71 is disposed in the opening/closing valve accommodating groove 191, one end of the valve member extends into the branch passage 11, and the other end of the valve member 71 extends to the outside of the casing 10 through the outer wall surface of the casing 10. The operating lever 72 is disposed at an end of the valve element 71 outside the housing 10 and drives the valve element 71 to rotate between an open position and a closed position. A closing stop portion 16 and an opening stop portion 17 are protruded from the outer wall surface of the housing 10, and the closing stop portion 16 and the opening stop portion 17 are located on the same side as the operating lever 72. Fig. 1 and 2 show the lever 72 abutting against the closure stop 16 with the valve element 71 in the closed position and the inlet opening 101 closed by the valve element 71 to prevent liquid from entering the bypass channel 11 through the valve element 71. Referring to fig. 7 and 8, when a user wants to use the present invention, the user manually rotates the operating lever 72 to the position of the opening stop 17, the operating lever 72 abuts against the opening stop 17 and drives the valve element 71 to rotate to the open position, the inlet 101 is opened by the valve element 71, and the liquid enters the diversion channel 11 through the valve element 71. The liquid enters the valve body pockets 12, 13, 14 through the flow dividing channel 11.

As shown in fig. 4 and 5, in the first embodiment, the valve body receiving grooves 12, 13, 14 are respectively connected to the balance passage 15 through a first guide passage 121, a second guide passage 131 and a third guide passage 141, the outlets 102, 103, 104 are respectively connected to the balance passage 15 through a first connecting passage 105, a second connecting passage and a third connecting passage 107, and the balance passage 15 has a first closed end 151 and a second closed end 152.

The output 1211 of the first guide channel 121 and the input end 1051 of the first connecting channel 105 are close to the first closed end 151 of the balance channel 15, and the output end 1211 of the first guide channel 121 is offset from the input end 1051 of the first connecting channel 105. In other words, the output 1211 of the first guiding channel 121 and the input 1051 of the first connecting channel 105 are not located on the same straight line. Preferably, the distance between the output 1211 of the first guide channel 121 and the first closed end 151 of the balance channel 15 is smaller than the distance between the input 1051 of the first connection channel 105 and the first closed end 151 of the balance channel 15. Thus, as shown in fig. 6, 8, 9, 12, 14 and 15, after the liquid passes through the valve body 20 along the first guide channel 121 and enters the balance channel 15 through the output end 1211 of the first guide channel 121, the liquid flows toward the input end 1051 of the first connection channel 105. At this time, because the output end 1211 of the first guide channel 121 is staggered from the input end 1051 of the first connection channel 105, the liquid has a certain force to push the piston 50 to move toward the second closed end 152 of the balance channel 15. Finally, the liquid flows outwardly from the outlet 102 through the first connecting passage 105 to an external device 201.

The output end 1311 of the second guiding channel 131 is located between the output end 1211 of the first guiding channel 121 and the output end 1411 of the third guiding channel 141, and the input end of the second connecting channel is located between the input end 1051 of the first connecting channel 105 and the input end 1071 of the third connecting channel 107. Preferably, the second connecting channel includes a first branch channel 106A and a second branch channel 106B, the output end 1311 of the second guiding channel 131 is offset from the input end 1061A of the first branch channel 106A, the output end 1311 of the second guiding channel 131 is offset from the input end 1061B of the second branch channel 106B, and the output end 1311 of the second guiding channel 131 faces the wall surface between the input end 1061A of the first branch channel 106A and the input end 1061B of the second branch channel 106B. In other words, the output end 1311 of the second guiding channel 131 and the input end 1061A of the first branch channel 106A are not located on the same straight line, and the output end 1311 of the second guiding channel 131 and the input end 1061B of the second branch channel 106B are not located on the same straight line. Thus, as shown in fig. 6, 8, 11, 13, 14 and 15, after the liquid passes through the valve body 30 along the second guide channel 131 and enters the balance channel 15 through the output end 1311 of the second guide channel 131, the liquid flows in the direction of the input end 1061A of the first branch channel 106A and the input end 1061B of the second branch channel 106B. At this time, because the output end 1311 of the second guiding passage 131 is staggered from the input end 1061A of the first branch passage 106A, and the output end 1311 of the second guiding passage 131 is staggered from the input end 1061B of the second branch passage 106B, the diverted liquid has a certain force to push the two pistons 50 and 60 to move toward the first closed end 151 and the second closed end 152 of the balance passage 15, respectively. Finally, the branched liquid is recombined by the first branch passage 106A and the second branch passage 106B, and then flows out of an external device 202 from the outlet 103.

The output end 1411 of the third guide passage 141 and the input end 1071 of the third connecting passage 107 are adjacent to the second closed end 152 of the equalizing passage 15, and the output end 1411 of the third guide passage 141 is offset from the input end 1071 of the third connecting passage 107. In other words, the output 1411 of the third guiding channel 141 and the input 1071 of the third connecting channel 107 are not located on the same straight line. Preferably, the distance between the output end 1411 of the third guide passage 141 and the second closed end 152 of the balance passage 15 is smaller than the distance between the input end 1071 of the third connection passage 107 and the second closed end 152 of the balance passage 15. Accordingly, as shown in fig. 6, 8, 10, 12, 13 and 15, after the liquid passes through the valve body 40 along the third guide passage 141 and enters the equalizing passage 15 through the output end 1411 of the third guide passage 141, the liquid flows toward the input end 1071 of the third connecting passage 107. At this time, because the output end 1411 of the third guide passage 141 is staggered from the input end 1071 of the third connecting passage 107, the liquid has a certain force to push the piston 60 toward the first closed end 151 of the balance passage 15. Finally, the liquid flows outwardly from the outlet 104 through the third connecting passage 107 to an external device 203.

As shown in fig. 1, 2 and 3, in the first embodiment, each of the valve bodies 20, 30 and 40 includes a needle valve 21, 31 and 41 and a knob 22, 32 and 42. The needle valve 21, 31, 41 is arranged in one of the valve body pockets 12, 13, 14. The knob 22, 32, 42 is provided at one end of the needle valve 21, 31, 41, is located outside the housing 10, and is used to adjust the depth of the needle valve 21, 31, 41 extending into the valve body receiving groove 12, 13, 14.

As shown in fig. 3, 4 and 5, each of the pistons 50, 60 includes a plug 51, 61, a first rod 52, 62 and a second rod 53, 63. The outer diameter of the plugs 51, 61 is smaller than the inner diameter of the equalization channel 15. Specifically, the outer diameter of the plugs 51, 61 is substantially less than the inner diameter of the balance channel 15 by about 0.02 mm. In other words, a gap of about 0.02mm (which is very narrow and not shown) is formed between the outer sidewall of the plugs 51, 61 and the inner sidewall of the balance passage 15, so that the plugs 51, 61 can freely move in the balance passage 15; meanwhile, after the liquid permeates into the gap, the liquid can stay in the gap by the viscosity force of the liquid (namely, a flow resistance resisting flow or deformation generated by the detected stress or tensile stress of the liquid) and cannot pass through the gap, so that the liquid can be prevented from passing through the plug bodies 51 and 61. The length of the plugs 51, 61 is greater than the diameter of the input 1051 of the first connection channel 105, the diameter of the input 1061A of the first branch channel 106A, the diameter of the input 1061B of the second branch channel 106B, and the diameter of the input 1071 of the third connection channel 107. Thus, the plugs 51, 61 of the two pistons 50, 60 may selectively close the input 1051 of the first connecting channel 105, the input 1061A of the second branch channel 106A, the input 1061B of the second branch channel 106B, and/or the input 1071 of the third connecting channel 107. The first rod part 52, 62 is axially connected to one end of the plug body 51, 61 away from the other piston 50, 60, the second rod part 53, 63 is axially connected to one end of the plug body 51, 61 close to the other piston 50, 60, and the outer diameters of the first rod part 52, 62 and the second rod part 53, 63 are smaller than the outer diameter of the plug body 51, 61. Thus, the liquid can flow around the first and second rod portions 52, 62, 53, 63 in the direction of the input 1051 of the first connecting channel 105, the input 1061A of the first branch channel 106A, the input 1061B of the second branch channel 106B, and/or the input 1071 of the third connecting channel 107. Wherein the length of the first rod part 52 of a piston 50 is greater than the distance between the output end 1211 of the first guide channel 121 and the first closed end 151 of the balancing channel 15, and wherein the length of the first rod part 52 of a piston 50 is less than the distance between the input end 1051 of the first connecting channel 105 and the first closed end 151 of the balancing channel 15. Thus, as shown in fig. 5, when the first rod 52 of one of the pistons 50 abuts against the first closed end 151 of the balance channel 15, the plug 51 of one of the pistons 50 does not close the output end 1211 of the first guide channel 121, so that the liquid passing through the output end 1211 of the first guide channel 121 smoothly enters the balance channel 15. The length of the first rod portion 62 of the other piston 60 is greater than the distance between the output end 1411 of the third guide passage 141 and the second closed end 152 of the balance passage 15, and the length of the first rod portion 62 of the other piston 60 is less than the distance between the input end 1071 of the third connecting passage 107 and the second closed end 152 of the balance passage 15. Therefore, as shown in fig. 5, when the first rod portion 62 of the other piston 60 abuts against the second closed end 152 of the balance passage 15, the plug body 61 of the other piston 60 does not close the output end 1411 of the third guiding passage 141, so that the liquid passing through the output end 1411 of the third guiding passage 141 smoothly enters the balance passage 15. The sum of the lengths of the second rod parts 53, 63 of the two pistons 50, 60 is greater than the diameter of the output end 1311 of the second guide passage 131, and the sum of the lengths of the second rod parts 53, 63 of the two pistons 50, 60 is less than the distance from the outermost side of the input end 1061A of the first branch passage 106A to the outermost side of the input end 1061B of the second branch passage 106B. Accordingly, as shown in fig. 12, when the second rod parts 53 and 63 of the two pistons 50 and 60 contact each other, the plug bodies 51 and 61 of the two pistons 50 and 60 do not close the output end 1311 of the second guide channel 131, so that the liquid passing through the output end 1311 of the second guide channel 131 smoothly enters the balance channel 15.

The seven flow control methods of the present invention will be further described with reference to the drawings.

The first flow control mode: please refer to fig. 9 in conjunction with fig. 6 and 8. When the valve body 20 is opened and the valve bodies 30 and 40 are closed, a liquid moves toward the input end 1051 of the first connecting channel 105 after passing through the output end 1211 of the first guide channel 121 along the first guide channel 121 and entering the equilibrium channel 15 through the valve body 20. At this time, because the output end 1211 of the first guiding channel 121 is staggered from the input end 1051 of the first connecting channel 105, the liquid has a certain force and pushes the two pistons 50 and 60 to move toward the second closed end 152 of the balancing channel 15, so that the plugs 51 and 61 of the two pistons 50 and 60 are far away from the input end 1051 of the first connecting channel 105, and the liquid flows out from the outlet 102 to the external device 201 through the first connecting channel 105; at the same time, the plug body 51 of one of the pistons 50 blocks the liquid from flowing out of the other two outlets 103, 104 to the other external devices 202, 203 through the first branch passage 106A, the second branch passage 106B and the third connecting passage 107.

The second flow control mode: please refer to fig. 10 in conjunction with fig. 6 and 8. When the valve body 40 is opened and the valve bodies 20 and 30 are closed, a liquid moves toward the input end 1071 of the third connecting passage 107 after passing through the output end 1411 of the third guide passage 141 along the third guide passage 141 and entering the equalizing passage 15 through the valve body 40. At this time, because the output end 1411 of the third guiding passage 141 is staggered from the input end 1071 of the third connecting passage 107, the liquid has a certain force and pushes the two pistons 50 and 60 to move toward the first closed end 151 of the balance passage 15, so that the plugs 51 and 61 of the two pistons 50 and 60 are far away from the input end 1071 of the third connecting passage 107, and the liquid flows out from the outlet 104 to the external device 203 through the third connecting passage 107; at the same time, the plug body 61 of one of the pistons 60 blocks the liquid from flowing out of the other two outlets 102, 103 to the other external devices 201, 202 through the first connecting channel 105 and the first branch channels 106A, 106B.

The third flow control mode: please refer to fig. 11 in conjunction with fig. 6 and 8. When the valve body 30 is opened and the valve bodies 20, 40 are closed, after a liquid flows through the valve body 30 along the second guide passage 131 through the output end 1311 of the second guide passage 131 into the equalizing passage 15, the liquid flows in the direction of the input end 1061A of the first branch passage 106A and the input end 1061B of the second branch passage 106B. At this time, because the output end 1311 of the second guiding passage 131 is staggered from the input end 1061A of the first branch passage 106A, and the output end 1311 of the second guiding passage 131 is staggered from the input end 1061B of the second branch passage 106B, the diverted liquid has a certain force to push the two pistons 50 and 60 to move toward the first closed end 151 and the second closed end 152 of the balance passage 15, respectively, so that the plugs 51 and 61 of the two pistons 50 and 60 are away from the input end 1061A of the first branch passage 106A and the input end 1061B of the second branch passage 106B, and the diverted liquid is allowed to be reunited through the first branch passage 106A and the second branch passage 106B and then flows out from the outlet 103 to the external device 202; at the same time, the plugs 51, 61 of the two pistons 50, 60 block the diverted liquid from flowing out of the further second outlets 102, 104 to the further external devices 201, 203 through the first connecting channel 105 and the third connecting channel 107.

The fourth flow control method: please refer to fig. 12 in conjunction with fig. 6 and 8. When the valve bodies 20, 40 are opened and the valve body 30 is closed, after the two fluids pass through the valve bodies 20, 40 along the first and third guide channels 121, 141 through the output ends 1211, 1411 of the first and third guide channels 121, 141 into the equalizing channel 15, the two fluids move toward the input ends 1051, 1071 of the first and third connecting channels 105, 107, respectively. At this time, because the output end 1211 of the first guiding channel 121 is staggered from the input end 1051 of the first connecting channel 105, and the output end 1411 of the third guiding channel 141 is staggered from the input end 1071 of the third connecting channel 107, the two liquids have a certain force to push the two pistons 50 and 60 to move toward the middle of the balance channel 15, so that the plugs 51 and 61 of the two pistons 50 and 60 are far away from the input ends 1051 and 1071 of the first and third connecting channels 105 and 107, and the two liquids flow out from the outlets 102 and 104 to the external devices 201 and 203 through the first and third connecting channels 105 and 107, respectively; at the same time, the plugs 51, 61 of the two pistons 50, 60 respectively block the two liquids to prevent the two liquids from flowing out of the outlet 103 to the external device 202 through the first branch passage 106A and the second branch passage 106B.

The fifth flow control mode: please refer to fig. 13 in conjunction with fig. 6 and 8. When the valve bodies 30, 40 are opened and the valve body 40 is closed, after the two fluids pass through the valve bodies 30, 40 along the second and third guide passages 131, 141 through the output ends 1311, 1411 of the second and third guide passages 131, 141 into the equalizing passage 15, the two fluids move toward the input ends 1061A, 1061B, 1071 of the first and second branch passages 106A, 106B and the third connecting passage 107, respectively. At this time, because the output end 1311 of the second guiding passage 131 is staggered from the input end 1061A of the first branch passage 106A, the output end 1311 of the second guiding passage 131 is staggered from the input end 1061B of the second branch passage 106B, and the output end 1411 of the third guiding passage 141 is staggered from the input end 1071 of the third connecting passage 107, the second fluid has a certain force to push the piston 60 to move to the space between the output ends 1311, 1411 of the second and third guiding passages 131, 141 and to push the piston 50 to move toward the first closed end 151 of the balancing passage 15, so that the plugs 51, 61 of the second pistons 50, 60 are far away from the first and second branch passages 106A, 106B and the input ends 1061A, 1061B, 1071 of the third connecting passage 107 and close the input end 1051 of the first connecting passage 105, and the second fluid passes through the first branch passage 106A, 106B and the input end 1061A of the third connecting passage 107, respectively, The second branch passages 106A, 106B and the third connecting passage 107 flow out from the outlets 103, 104 to the external devices 202, 203; at the same time, the plug body 51 of one of the pistons 50 blocks the liquid entering the equalizing channel 15 through the output end 1311 of the second guide channel 131 from flowing out of the outlet 102 to the external device 201 through the first connecting channel 105.

The sixth flow control manner: please refer to fig. 14 in conjunction with fig. 6 and 8. When the valve bodies 20, 30 are opened and the valve body 50 is closed, after the two liquids pass through the valve bodies 20, 30 along the first and second guide channels 121, 131 through the output ends 1211, 1311 of the first and second guide channels 121, 131 and enter the balance channel 15, the two liquids will move toward the input ends 1051, 1061A, 1061B of the first connecting channel 105 and the first and second branch channels 106A, 106B, respectively. At this time, the two liquids have a certain force to push the piston 50 to move to the space between the output ends 1211, 1311 of the first and second guiding passages 121, 131 of the balancing passage 15 and to push the piston 60 to move toward the second closed end 152 of the balancing passage 15, so that the plugs 51, 61 of the two pistons 50, 60 are far away from the first connecting passage 105 and the input ends 1051, 1061A, 1061B of the first and second branch passages 106A, 106B, and the two liquids are made to flow out from the outlets 102, 103 to the external devices 201, 202 through the first connecting passage 105 and the first and second branch passages 106A, 106B, respectively; at the same time, the plug body 61 of the other piston 60 blocks the liquid entering the equalizing channel 15 through the output end 1311 of the second guide channel 131 from flowing out of the outlet 104 to the external device 203 through the third connecting channel 107.

The seventh flow control method: please refer to fig. 15 in conjunction with fig. 6 and 8. When the valve bodies 20, 30, and 40 are fully opened, after the three liquids pass through the valve bodies 20, 30, and 40 and enter the equalizing channel 15 along the first, second, and third guide channels 121, 131, and 141 through the output ends 1211, 1311, and 1411 of the first, second, and third guide channels 121, 131, and 141, respectively, the three liquids will move toward the first connecting channel 105, the first, second branch channels 106A and 106B, and the input ends 1051, 1061A, 1061B, and 1071 of the third connecting channel 107, respectively. At this time, because the output end 1211 of the first guide channel 121 is in a staggered relationship with the input end 1051 of the first connection channel 105, the output end 1311 of the second guide channel 131 is in a staggered relationship with the input end 1061A of the first branch channel 106A, the output end 1311 of the second guide channel 131 is in a staggered relationship with the input end 1061B of the second branch channel 106B, and the output end 1411 of the third guide channel 141 is in a staggered relationship with the input end 1071 of the third connection channel 107, the three liquids have a certain force to push the piston 50 to move to a space where the balance channel 15 is between the output ends 1211 and 1311 of the first and second guide channels 121 and 131, and to push the piston 60 to move to a space where the balance channel 15 is between the output ends 1 and 1411 of the second and third guide channels 131 and 141, so that the plugs 51 and 61 of the two pistons 50 and 60 are far from the input end 1051 of the first connection channel 105 and the second connection channel 106, The input ends 1051, 1061A, 1061B, 1071 of the first and second branch channels 106A, 106B and the third connecting channel 107 allow the three fluids to flow out of the outlets 102, 103, 104 to the three external devices 201, 202, 203 through the first connecting channel 105, the first and second branch channels 106A, 106B and the third connecting channel 107, respectively.

Referring to fig. 1 to fig. 4 and fig. 6 again, an overflow port 108 is formed on the surface of the casing 10, and an overflow valve accommodating groove 18 and three pressure relief passages 181, 182, and 183 are formed inside the casing 10. The relief valve pocket 18 communicates with the branch passage 11 and the relief port 108. The pressure relief passages 181, 182 and 183 are respectively communicated between the relief valve accommodating groove 18 and the valve body accommodating grooves 12, 13 and 14. The multi-outlet balanced liquid output control valve further comprises an overflow valve 80, and the overflow valve 80 is arranged in the overflow valve containing groove 18. The liquid in the branch passage 11 that does not pass through the valve bodies 20, 30, 40 (i.e., the excess liquid) flows out from the overflow port 108 to a reservoir 200 through the overflow valve 80. Part of the liquid permeates into the overflow valve 80 and enters the valve body accommodating grooves 12, 13 and 14 through the pressure relief channels 181, 182 and 183, so that the pressures at two ends in the overflow valve 80 are different, and a spring 81 in the overflow valve 80 can keep the effect of elastically pushing a valve element 82 to open and close the overflow valve 80, thereby maintaining the function of the overflow valve 80 for discharging redundant liquid.

Referring to fig. 1, fig. 2, fig. 3 and fig. 6 again, a pressure relief valve accommodating groove 192 is formed in the housing 10, the multi-outlet balanced output liquid control valve of the present invention further includes a high pressure relief valve 90, the high pressure relief valve 90 is disposed in the pressure relief valve accommodating groove 192, extends to the diversion channel 11, and one end of the high pressure relief valve 90 protrudes out of the housing 10, and the high pressure relief valve 90 is used for reducing the pressure of the liquid in the diversion channel 11. Further, when the pressure of the liquid entering the diversion channel 11 is greater than the pre-tightening force of a spring 91 in the high-pressure relief valve 90, the liquid pushes a valve element 92 of the high-pressure relief valve 90 to compress the spring 91 of the high-pressure relief valve 90, so that a part of the liquid is discharged to the storage device 200 through the high-pressure relief valve 90, thereby achieving the purpose of reducing the pressure of the liquid in the diversion channel 11, and providing the liquid with stable pressure to the valve bodies 20, 30, and 40.

Please refer to fig. 16 and 17, which are a perspective view and an exploded view, respectively, of a second embodiment of the present invention. The second embodiment differs from the first embodiment in that: the valve elements 20A, 30A, and 40A are solenoid valves, the on-off valve 70 is omitted, and the housing 10A is slightly modified. Otherwise, the remaining technical features of the second embodiment are the same as those of the first embodiment. The valve bodies 20A, 30A, 40A are solenoid valves, which are advantageous in that: the opening degree of the valve body 20A, 30A, 40A can be automatically controlled by a control device (not shown) at the distal end to regulate the flow rate and flow rate of the liquid passing through the valve body 20A, 30A, 40A without manually rotating the knob 22, 32, 42 to the side of the housing 10 as in the first embodiment, and the operation is easier than that of the first embodiment. However, the valve bodies 20A, 30A, 40A mainly including the solenoid valves are expensive to manufacture compared with the valve bodies 20, 30, 40 mainly including the needle valves 21, 31, 41 and the knobs 22, 32, 42, so that the second embodiment is higher in cost than the first embodiment.

In summary, the two pistons 50 and 60 which are freely movable and arranged in the balance channel 15 of the present invention enable one, two or three liquids entering the balance channel 15 through the valve bodies 20, 30 and 40 to be regulated and controlled by the movement of the two pistons 50 and 60, so that the liquids are outputted from the outlets 102, 103 and 104 at a very stable flow rate and flow velocity, and the problem of small and large flow rate is avoided, thereby achieving the effect of balanced liquid output with multiple outlets.

It is worth mentioning that the above embodiment uses a one-in three-out four-way valve as the best implementation mode; however, the number of the valve bodies and the number of the outlets may be three or more, and the number of the pistons may be two or more. For example, the number of the valve bodies and the number of the outlets of the invention can be four, so that the valve body is a five-way valve with one inlet and four outlets and simultaneously comprises three pistons. For example, the number of the valve bodies and the number of the outlets of the invention can be five, so that the six-way valve with one inlet and five outlets is formed and simultaneously comprises four pistons. In this way, the number of the valve bodies and the number of the outlets are more than or equal to three, and the number of the pistons is more than or equal to two, which are all covered in the scope of the invention, and the same effect of balanced liquid output by multiple outlets can be achieved.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting thereof, since any modification or variation thereof within the spirit of the invention is intended to be covered thereby.

Wherein the reference numerals are as follows:

10. 10A casing

101 inlet

102. Outlets 103, 104

105 first connecting channel

1051 input terminal

106A first branch channel

1061A input terminal

106B second branch channel

1061B input terminal

107 third connecting channel

1071 input terminal

108 overflow port

11 flow dividing channel

12. 13, 14 valve body containing groove

121 first guide channel

1211 output terminal

131 second guide channel

1311 output terminal

141 third guide passage

1411 output terminal

15 balance channel

151 first closed end

152 second closed end

16 closing stop

17 opening stop part

18 relief valve containing groove

181. 182, 183 pressure relief channel

191 switch valve containing groove

192 relief valve vessel

20. 20A, 30A, 40A valve body

21. 31, 41 needle valve

22. 32, 42 knob

50. 60 piston

51. 61 plug body

52. 62 first rod part

53. 63 second lever part

70 switch valve

71 valve core

72 operating lever

80 overflow valve

81 spring

90 high-pressure relief valve

91 spring

100 source of liquid

200 storage device

201 to 203 external device

Claims (10)

1. A multi-outlet balanced output liquid control valve, comprising:

the surface of the shell is provided with an inlet and three outlets, the shell is internally provided with a diversion channel, three valve body containing grooves and a balance channel, the diversion channel is communicated with the inlet and the valve body containing grooves, the balance channel is communicated with the valve body containing grooves and the outlets, the inlet is used for being connected with a liquid source, and the liquid source provides liquid which sequentially enters the valve body containing grooves through the inlet and the diversion channel;

the three valve bodies are respectively arranged in the valve body containing grooves and used for regulating and controlling the flow and the flow speed of liquid entering the balance channel through the valve bodies; and

two pistons movably arranged in the balance channel;

when one valve body is opened and the other valve body is closed, a path of liquid enters the balance channel through one valve body and pushes the two pistons to move, so that the two pistons are far away from the input end of one outlet, the path of liquid flows out from one outlet, and meanwhile, one piston blocks the path of liquid to prevent the path of liquid from flowing out from the other two outlets;

when two valve bodies are opened and the other valve body is closed, two liquid respectively enters the balance channel through the two valve bodies and pushes the two pistons to move, so that the two pistons are far away from the input ends of the two outlets, the two liquid respectively flows out from the two outlets, and at least one piston blocks at least one liquid to prevent the at least one liquid from flowing out from the other outlet;

when the valve body is completely opened, three liquids enter the balance channel through the valve body and push the two pistons to move, so that the two pistons are far away from the input end of the outlet, and the three liquids respectively flow out from the outlet.

2. The valve of claim 1, wherein the valve body receiving cavity is connected to the balancing channel by a first guiding channel, a second guiding channel and a third guiding channel, respectively, and the outlet is connected to the balancing channel by a first connecting channel, a second connecting channel and a third connecting channel, respectively, the balancing channel having a first closed end and a second closed end;

the output end of the first guide channel and the input end of the first connecting channel are close to the first closed end of the balance channel, and the output end of the first guide channel and the input end of the first connecting channel are staggered;

the output end of the second guide channel is positioned between the output end of the first guide channel and the output end of the third guide channel, and the input end of the second connecting channel is positioned between the input end of the first connecting channel and the input end of the third connecting channel;

the output end of the third guide channel and the input end of the third connecting channel are close to the second closed end of the balance channel, and the output end of the third guide channel and the input end of the third connecting channel are staggered.

3. The multi-outlet balanced liquid output control valve of claim 2, wherein the second connecting passage includes a first branch passage and a second branch passage, the output end of the second pilot passage is offset from the input end of the first branch passage, the output end of the second pilot passage is offset from the input end of the second branch passage, and the output end of the second pilot passage faces the wall surface between the input end of the first branch passage and the input end of the second branch passage.

4. The valve of claim 3, wherein the distance between the output end of the first guiding channel and the first closed end of the balancing channel is smaller than the distance between the input end of the first connecting channel and the first closed end of the balancing channel, and the distance between the output end of the third guiding channel and the second closed end of the balancing channel is smaller than the distance between the input end of the third connecting channel and the second closed end of the balancing channel.

5. The valve as claimed in claim 4, wherein each piston comprises a plug body, a first rod part and a second rod part, the outer diameter of the plug body is smaller than the inner diameter of the balancing passage, the length of the plug body is larger than the diameter of the input end of the first connecting passage, the diameter of the input end of the first branch passage, the diameter of the input end of the second branch passage, and the diameter of the input end of the third connecting passage, the first rod part is axially connected to the end of the plug body away from the other piston, the second rod part is axially connected to the end of the plug body close to the other piston, the outer diameters of the first rod part and the second rod part are smaller than the outer diameter of the plug body, the length of the first rod part of a piston is larger than the distance between the output end of the first guide passage and the first closed end of the balancing passage, and the length of the first rod part of a piston is smaller than the input end of the first connecting passage and the input end of the balancing passage The length of the first rod part of the other piston is greater than the distance between the output end of the third guide channel and the second closed end of the balance channel, the length of the first rod part of the other piston is less than the distance between the input end of the third connecting channel and the second closed end of the balance channel, the sum of the lengths of the second rod parts of the two pistons is greater than the diameter of the output end of the second guide channel, and the sum of the lengths of the second rod parts of the two pistons is less than the distance from the outermost side of the input end of the first branch channel to the outermost side of the input end of the second branch channel.

6. The multi-outlet balanced liquid outlet control valve according to claim 1, wherein the housing has an overflow port formed on a surface thereof, the housing has an overflow valve receiving groove and three relief passages therein, the overflow valve receiving groove is communicated with the bypass passage and the overflow port, the relief passages are respectively communicated between the overflow valve receiving groove and the valve body receiving groove, the multi-outlet balanced liquid outlet control valve further comprises an overflow valve disposed in the overflow valve receiving groove, the liquid in the bypass passage that does not pass through the valve body flows out from the overflow port through the overflow valve, and a portion of the liquid permeates into the overflow valve and enters the valve body receiving groove through the relief passages.

7. The multiple outlet balanced discharge fluid control valve of claim 1 in which each of the valve bodies includes a needle valve disposed in one of the valve body pockets and a knob disposed at one end of the needle valve outside the housing and controlling the depth to which the needle valve extends into the valve body pocket.

8. The multiple-outlet balanced fluid output control valve of claim 1, wherein each valve body is a solenoid valve.

9. The multi-outlet balanced liquid output control valve of claim 1, further comprising a switch valve disposed in the switch valve receiving chamber, extending to the bypass channel, and having one end protruding out of the housing, wherein the switch valve is used to regulate the flow rate of the liquid entering the bypass channel through the switch valve.

10. The multiple-outlet balanced liquid output control valve of claim 1, further comprising a pressure relief valve disposed in the pressure relief valve accommodating groove and extending to the bypass passage, and one end of the pressure relief valve protrudes out of the housing, the pressure relief valve being configured to reduce the pressure of the liquid in the bypass passage.

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