CN112539787B - Flowmeter for measuring flow rate - Google Patents
Flowmeter for measuring flow rate Download PDFInfo
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- CN112539787B CN112539787B CN202011341224.0A CN202011341224A CN112539787B CN 112539787 B CN112539787 B CN 112539787B CN 202011341224 A CN202011341224 A CN 202011341224A CN 112539787 B CN112539787 B CN 112539787B
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- blocking block
- distribution
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- 238000005086 pumping Methods 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 230000000903 blocking effect Effects 0.000 claims description 94
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 64
- 238000007789 sealing Methods 0.000 description 5
- 238000009428 plumbing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a flowmeter, including the valve body, pump out the module and flow calculation module on locating the valve body, inlet and liquid outlet have been seted up on the valve body, pump out the module including seting up in the internal drive oil duct of valve, the liquid outlet duct, pumping channel, distribution piston and set up the control on distribution piston, the tip and the inlet of pumping channel are connected to the drive oil duct, liquid outlet duct is connected drive oil duct and liquid outlet, the distribution piston slides and is connected in pumping channel, the control is arranged in when the drive oil duct and the inlet of pumping channel one end switch on, the liquid outlet duct disconnection on this drive oil duct, and the drive oil duct that makes the pumping channel other end and liquid inlet disconnection, drive oil duct and liquid outlet duct switch on, the calculation template sets up and is used for detecting the contact number of pumping piston and pumping channel tip on the valve body, and according to this contact number of times multiply the volume of collision at every turn, calculate the flow. The better influence of impurity on the flow measurement result of reduction of this application.
Description
Technical Field
The application relates to the technical field of liquid flow detection, in particular to a flowmeter.
Background
The grease flowmeter in the current market is mainly a gear type flowmeter, a cylindrical gear or an elliptic gear is pushed to rotate through liquid circulation, grease in a cavity is extruded through rotation of the cylindrical gear or the elliptic gear, magnetic induction pulses on the gear are received by an inductor, displacement of each time is calculated according to the size of the cavity, and total flow is calculated according to the number of pulse signals.
With respect to the related art in the above, the inventors consider that: the liquid is pushed to flow out through the meshing of the gears, if the liquid contains impurities, the gears can be blocked, the pulse number is inaccurate, and therefore the flow measurement result is affected.
Disclosure of Invention
To better reduce the effects of impurities on flow measurement results, the present application provides a flow meter.
The flow meter provided by the application adopts the following technical scheme:
the utility model provides a flowmeter, includes the valve body, sets up pump out module and flow calculation module on the valve body, has seted up inlet and liquid outlet on the valve body, pumps out the module including seting up drive oil duct in the valve body, play liquid oil duct, pumping channel, distribution piston and set up the control on the distribution piston, the tip and the inlet of drive oil duct connection pumping channel, play liquid oil duct connection drive oil duct and liquid outlet, the distribution piston slides and is connected in pumping channel, the control is arranged in when the drive oil duct and the inlet of pumping channel one end switch on, breaks off the play liquid oil duct on this drive oil duct to make the drive oil duct and the inlet disconnection of pumping channel other end, drive oil duct and play liquid oil duct switch on, flow calculation module sets up and is used for detecting the number of times of contact of distribution piston and pumping channel tip on the valve body, and according to this number of times of contact multiply the volume of collision at every turn, calculates the flow.
By adopting the technical scheme, when the oil pump is used, oil is sucked into the corresponding oil passage through the movement of the distribution piston, and is pumped out through the return movement of the distribution piston, the flow calculation module detects the frequency of the reciprocating movement of the distribution piston, and the total volume of the pumped oil is calculated according to the unit volume of the oil pumped out by the reciprocating movement of the distribution piston each time and the frequency of the movement, and the total volume is the measured flow; due to the fact that. The fit clearance of the piston is 3-4 microns, and the volume of impurities in lubricating oil is generally larger than the fit clearance, so that impurities cannot enter the flowmeter, the flow detection is not affected, and the volume of oil measured by the flowmeter is more accurate.
Optionally, the pumping channel includes a first pumping channel and a second pumping channel, the distribution piston includes a first distribution piston and a second distribution piston, the first distribution piston slides in the first pumping channel, the second distribution piston slides in the second pumping channel, the control piece includes a first control piece and a second control piece, the liquid outlet oil channel includes a first liquid outlet oil channel and a second liquid outlet oil channel, and a first channel first connection port, a first channel second connection port, a first channel third connection port and a first channel fourth connection port are sequentially opened on the first pumping channel; the second pumping channel is sequentially provided with a second channel first connecting port, a second channel second connecting port, a second channel third connecting port and a second channel fourth connecting port; the first channel first connecting port is communicated with the second channel third connecting port to form a first piston first driving oil duct, the first channel second connecting port is communicated with the second channel first connecting port to form a second piston first driving oil duct, the first channel third connecting port is communicated with the second channel fourth connecting port to form a second piston second driving oil duct, and the first channel fourth connecting port is communicated with the second channel second connecting port to form a first piston second driving oil duct; the first distribution piston comprises a first cylinder, the first control piece comprises a first piston first block, a first piston second block, a first piston third block and a first piston fourth block which are sequentially arranged on the first cylinder and used for blocking a first pumping channel, and a first piston first annular groove, a first piston second annular groove and a first piston third annular groove are sequentially formed between two adjacent blocks; the second distribution piston comprises a second cylinder, the second control piece comprises a second piston first blocking piece, a second piston second blocking piece, a second piston third blocking piece and a second piston fourth blocking piece which are sequentially arranged on the second cylinder and used for blocking a second pumping channel, and a second piston first annular groove, a second piston second annular groove and a second piston third annular groove are sequentially formed between two adjacent blocking pieces; the liquid inlet is positioned between the first channel second connecting port and the first channel third connecting port, a first channel first outflow port is arranged between the first channel first connecting port and the first channel second connecting port, the first channel first outflow port is positioned between the first piston first blocking piece and the first piston second blocking piece, a first channel second outflow port is arranged between the first channel third connecting port and the first channel fourth connecting port, and the first channel second outflow port is positioned between the first piston third blocking piece and the first piston fourth blocking piece; a second channel first outflow port is arranged between the second channel first connecting port and the second channel second connecting port, the second channel first outflow port is positioned between the second piston first blocking piece and the second piston second blocking piece, a second channel second outflow port is arranged between the second channel third connecting port and the second channel fourth connecting port, and the second channel second outflow port is positioned between the second piston third blocking piece and the second piston fourth blocking piece; when one end of the first distribution piston, which is close to the first block of the first piston, is abutted against the end part of the first pumping channel, the second connecting port of the first channel is positioned between the second block of the first piston and the third block of the first piston, and the third connecting port of the first channel is positioned between the third block of the first piston and the fourth block of the first piston; when the other end of the first distribution piston is abutted against the end part of the first pumping channel, the second connecting port of the first channel is positioned between the first blocking block of the first piston and the second blocking block of the first piston, and the third connecting port of the first channel is positioned between the second blocking block of the first piston and the third blocking block of the first piston; when one end of the second distribution piston, which is close to the first blocking block of the second piston, is abutted against the end part of the second pumping channel, the second connecting port of the second channel is positioned between the second blocking block of the second piston and the third blocking block of the second piston, and the third connecting port of the second channel is positioned between the third blocking block of the second piston and the fourth blocking block of the second piston; when the other end of the second distribution piston is in conflict with the end part of the second pumping channel, a second connecting port of the second channel is positioned between the first blocking block of the second piston and the second blocking block of the second piston, and a third connecting port of the second channel is positioned between the second blocking block of the second piston and the third blocking block of the second piston.
By adopting the technical scheme, under the working condition of ensuring alternate pumping, the layout of each pipeline is more reasonable.
Optionally, the flow calculation module comprises an inductor and a processor, wherein the inductor is arranged on the valve body and is used for inducing the impact between the first distribution piston or the second distribution piston and the end wall of the pumping channel and sending an electric signal to the processor, and the processor is electrically connected with the inductor and is used for receiving the electric signal of the inductor so as to count the impact times and calculate the flow through the impact times.
Through adopting above-mentioned technical scheme, the distribution piston bumps with the inductor in the in-process of pump oil, and during the collision, the inductor sends the electrical signal pulse to the treater, and the treater calculates the number of times of pulse to combine the unit pump volume of pulse number and each time distribution piston, calculate total flow.
Optionally, a limiting piece for limiting the moving stroke of the first distribution piston and the second distribution piston is arranged on the valve body.
Through adopting above-mentioned technical scheme, utilize the motion stroke of locating part restriction first distribution piston and second distribution piston in reciprocating motion to retrain distribution piston pumping stroke, the structure is more stable, is difficult for appearing blocking.
Optionally, the limiting piece comprises a roller, a limiting groove for the roller to slide along the direction from the first distribution piston to the second distribution piston is formed in the valve body, and two ends of the limiting groove are communicated with the first piston second annular groove and the second piston second annular groove; the first piston second annular groove bottom is provided with a first piston first clamping groove and a first piston second clamping groove which are distributed along the length direction of a first distribution piston, the second piston second annular groove bottom is provided with a second piston first clamping groove and a second piston second clamping groove which are distributed along the length direction of a second distribution piston, the bottoms of the first piston first clamping groove, the first piston second clamping groove, the second piston first clamping groove and the second piston second clamping groove are arc-shaped groove bottoms, and the side surface of the roller is attached to the arc-shaped groove bottom of one clamping groove on one distribution piston; when one of the distribution pistons moves, the arc groove bottom on the distribution piston drives the roller to be far away from the distribution piston along the limit groove, the roller is clamped into one clamping groove of the other distribution piston, and when the roller is clamped into the clamping groove, the part of the roller far away from the clamped clamping groove is positioned between the second blocking block and the third blocking block of the moving distribution piston and is used for abutting against the second blocking block or the third blocking block so as to limit the moving stroke of the moving distribution piston.
Through adopting above-mentioned technical scheme, through the cooperation of roller and spacing groove, guarantee that first distribution piston and second distribution piston only have one can move to carry out spacingly to the motion sequence and the motion stroke of first distribution piston and second distribution piston, guarantee the orderly of pumping in turn.
Optionally, a forming channel coaxial with the oil duct and penetrating through the side wall of the side valve body where the oil duct is located is formed in the valve body, and a plugging piece for plugging the forming channel is arranged in the forming channel.
Through adopting above-mentioned technical scheme, utilize the processing of the oil duct in the shaping passageway convenience to the valve body, will carry out the shutoff to the shaping passageway through the shutoff after the processing is accomplished, avoid oil to leak from the shaping passageway.
Optionally, the blocking member includes a steel ball disposed in the molding channel.
By adopting the technical scheme, the steel ball is utilized to block the forming channel, the structure is simple, the blocking process is convenient, and the blocking effect is good.
Optionally, a first valve body is disposed at one end of the valve body, and the flow calculation module is disposed in the first valve body.
Through adopting above-mentioned technical scheme, flow calculation module and first valve body are installed earlier, then carry out fixed mounting between rethread first valve body and the valve body, and installation and use are more convenient.
Optionally, the first pumping channel and the second pumping channel penetrate through the valve body along the length direction, a third valve body is arranged on the valve body, and the third valve body and the first valve body are respectively positioned at two ends of the valve body along the moving direction of the distribution piston and used for blocking two ends of the first pumping channel and the second pumping channel.
Through adopting above-mentioned technical scheme, the third valve body plugs up the one end of first pumping channel, second pumping channel, avoids liquid outflow and simple structure, simple to operate.
Optionally, a second valve body is arranged on the valve body, and an aviation plug is arranged on the second valve body.
By adopting the technical scheme, the aviation plug is inserted into the socket and is used for supplying power to the flow calculation module.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the oil pump is used, oil is sucked into the corresponding oil duct through the movement of the distribution piston, the oil is pumped out through the return movement of the distribution piston, the flow calculation module detects the number of times of the reciprocating movement of the distribution piston, and the total volume of the pumped oil is calculated according to the unit volume of the oil pumped out by the reciprocating movement of the distribution piston each time and the total volume is the measured flow; because the fit clearance of the piston is 3-4 microns, the volume of impurities in the lubricating oil is generally larger than the fit clearance, so that the impurities cannot enter the flowmeter, the flow detection is not affected, and the volume of the oil measured by the flowmeter is more accurate;
2. the forming channel is utilized to facilitate the processing of the oil duct in the valve body, and the forming channel is plugged by plugging after the processing is completed, so that the oil is prevented from leaking out of the forming channel;
3. the flow calculation module is arranged in the first valve body, is convenient to install and maintain, and is convenient for the power supply and use of the flowmeter due to the fact that the aviation plug is arranged on the second valve body.
Drawings
Fig. 1 is a schematic structural view of a flow meter according to an embodiment of the present application.
Fig. 2 is a cross-sectional view of A-A in fig. 1.
Fig. 3 is a sectional view of B-B in fig. 1.
Fig. 4 is a cross-sectional view of the valve body of the flowmeter of the embodiment of the present application, taken along the opposite direction of A-A in fig. 1.
Fig. 5 is a schematic structural view of a dispensing piston of a flowmeter according to an embodiment of the present application.
FIG. 6 is a schematic illustration of valve body plumbing of a flow meter according to an embodiment of the present application, with a first dispensing piston positioned closest to a third valve body position and a second dispensing piston positioned furthest from the third valve body position.
FIG. 7 is a schematic illustration of valve body plumbing of a flow meter according to an embodiment of the present application, with a first dispensing piston positioned closest to a third valve body position and a second dispensing piston positioned closest to the third valve body position.
Fig. 8 is a schematic diagram of valve body plumbing for a flow meter according to an embodiment of the present application, with a first dispensing piston positioned closest to a second valve body and a second dispensing piston positioned closest to a third valve body.
Fig. 9 is a schematic diagram of valve body plumbing for a flowmeter according to an embodiment of the present application, with a first dispensing piston positioned closest to a second valve body and a second dispensing piston positioned closest to the second valve body.
Reference numerals illustrate: 1. a valve body; 11. a liquid inlet; 12. a liquid outlet; 13. a first valve body; 14. a second valve body; 141. aviation plug; 15. a third valve body; 16. forming a channel; 17. a blocking member; 2. a pump-out module; 3. a drive oil passage; 31. a first drive oil passage; 32. a second drive oil passage; 33. a third drive oil passage; 34. a fourth drive oil passage; 41. a first liquid outlet oil duct; 42. a second liquid outlet oil duct; 5. a pumping channel; 51. a first pumping channel; 511. a first channel first connection port; 512. a first channel second connection port; 513. a first channel third connection port; 514. a first channel fourth connection port; 515. a first channel first outflow port; 516. a first channel second outlet; 52. a second pumping channel; 521. a second channel first connection port; 522. a second channel second connection port; 523. a second channel third connection port; 524. a second channel fourth connection port; 525. a second channel first outflow port; 526. a second channel second outlet; 61. a first dispensing piston; 62. a second dispensing piston; 711. a first piston first block; 712. a first piston second block; 713. a first piston third block; 714. a first piston fourth block; 715. a first piston first ring groove; 716. a first piston second ring groove; 717. a first piston third ring groove; 721. a second piston first block; 722. a second piston second block; 723. a second piston third block; 724. a second piston fourth block; 725. a second piston first ring groove; 726. a second piston second ring groove; 727. a second piston third ring groove; 8. a limiting piece; 81. a limit groove; 82. a first piston first clamping groove; 83. a first piston second clamping groove; 84. a second piston first clamping groove; 85. a second piston second clamping groove; 86. a limit clip; 9. and (3) sealing rings.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses flowmeter, refer to FIG. 1, including valve body 1, pump out module 2 and flow calculation module, pump out module 2 sets up in valve body 1, pump out module 2 including set up drive oil duct 3 in valve body 1, go out the liquid oil duct, pump channel 5, the distribution piston and set up the control on the distribution piston, set up inlet 11 and liquid outlet 12 on the pump body, drive oil duct 3 connects pump channel 5's tip and inlet 11, liquid outlet oil duct connects drive oil duct 3 and liquid outlet 12, the distribution piston slides and is connected in pump channel 5.
As shown in fig. 2 and 3, the pumping channel 5 includes a first pumping channel 51 and a second pumping channel 52.
As shown in fig. 3 and 4, the first pumping channel 51 is provided with a first channel first connection port 511, a first channel second connection port 512, a first channel third connection port 513, and a first channel fourth connection port 514 in this order; the second pumping channel 52 is provided with a second channel first connection port 521, a second channel second connection port 522, a second channel third connection port 523, and a second channel fourth connection port 524 in this order.
The first pumping channel 51 and the second pumping channel 52 penetrate through the valve body 1 along the length direction, one end of the valve body 1 is fixedly provided with a third valve body 15 for blocking one end of the valve body 1, the other end of the valve body 1 is fixedly provided with a first valve body 13 for blocking the other end of the valve body 1, one end, opposite to the third valve body 15, of the first valve body 13 is fixedly connected with a second valve body 14, the flow calculation module is arranged in the first valve body 13, and the second valve body 14 is provided with an aviation plug 141.
The joint of one end of the first pumping channel 51 and the third valve body 15 is provided with a sealing ring 9, and the joint of the other end of the first pumping channel and the first valve body 13 is provided with a sealing ring 9.
The joint of one end of the second pumping channel 52 and the third valve body 15 is provided with a sealing ring 9, and the joint of the other end of the second pumping channel and the first valve body 13 is provided with a sealing ring 9.
The liquid outlet oil passages include a first liquid outlet oil passage 41 and a second liquid outlet oil passage 42, the control members include a first control member and a second control member, and the drive oil passage 3 includes a first drive oil passage 31, a second drive oil passage 32, a third drive oil passage 33, and a fourth drive oil passage 34.
The distribution piston comprises a first distribution piston 61 and a second distribution piston 62, the first distribution piston 61 sliding in the first pumping channel 51 and the second distribution piston 62 sliding in the second pumping channel 52.
As shown in fig. 3 and 5, the first dispensing piston 61 includes a first cylinder, and the first control member includes a first piston first block 711, a first piston second block 712, a first piston third block 713, and a first piston fourth block 714 that are sequentially integrally disposed on the first cylinder and are used to block the first pumping channel 51, and a first piston first ring groove 715, a first piston second ring groove 716, and a first piston third ring groove 717 are sequentially formed between two adjacent blocks.
The second distributing piston 62 includes a second cylinder, and the second control member includes a second piston first block 721, a second piston second block 722, a second piston third block 723, and a second piston fourth block 724 that are sequentially integrally provided on the second cylinder and are used for blocking the second pumping channel 52, and a second piston first ring groove 725, a second piston second ring groove 726, and a second piston third ring groove 727 are sequentially formed between the adjacent two blocks.
As shown in fig. 4 and 5, the liquid inlet 11 is located between the first channel second connection port 512 and the first channel third connection port 513, the first pumping channel 51 is located between the first channel first connection port 511 and the first channel second connection port 512 and provided with a first channel first outlet 515, the first channel first outlet 515 is located between the first piston first block 711 and the first piston second block 712, the first pumping channel 51 is located between the first channel third connection port 513 and the first channel fourth connection port 514 and provided with a first channel second outlet 516, and the first channel second outlet 516 is located between the first piston third block 713 and the first piston fourth block 714.
The second pumping channel 52 is provided with a second channel first outlet 525 at a position between the second channel first connection port 521 and the second channel second connection port 522, the second channel first outlet 525 is positioned between the second piston first block 721 and the second piston second block 722, the second pumping channel 52 is provided with a second channel second outlet 526 at a position between the second channel third connection port 523 and the second channel fourth connection port 524, and the second channel second outlet 526 is positioned between the second piston third block 723 and the second piston fourth block 724.
As shown in fig. 6, one end of the first liquid outlet passage 41 communicates with the first passage first outlet 515 and the second passage first outlet 525, the other end communicates with the liquid outlet 12, and one end of the second liquid outlet passage 42 communicates with the first passage second outlet 516 and the second passage second outlet 526.
The first drive oil passage 31 connects the first passage first connection port 511 and the second passage second connection port 522, the second drive oil passage 32 connects the first passage second connection port 512 and the second passage fourth connection port 524, the third drive oil passage 33 connects the first passage third connection port 513 and the second passage first connection port 521, and the fourth drive oil passage 34 connects the first passage fourth connection port 514 and the second passage third connection port 523.
When the end of the first distribution piston 61 near the first piston first block 711 collides with the end of the first pumping channel 51, the first channel second connection port 512 is located between the first piston second block 712 and the first piston third block 713, and the first channel third connection port 513 is located between the first piston third block 713 and the first piston fourth block 714; when the other end of the first distribution piston 61 abuts against the end of the first pumping channel 51, the first channel second connection port 512 is located between the first piston first block 711 and the first piston second block 712, and the first channel third connection port 513 is located between the first piston second block 712 and the first piston third block 713.
When the end of the second distribution piston 62 near the second piston first block 721 abuts the end of the second pumping channel 52, the second channel second connection port 522 is located between the second piston second block 722 and the second piston third block 723, and the second channel third connection port 523 is located between the second piston third block 723 and the second piston fourth block 724; when the other end of the second distribution piston 62 abuts against the end of the second pumping channel 52, the second channel second connection port 522 is located between the second piston first block 721 and the second piston second block 722, and the second channel third connection port 523 is located between the second piston second block 722 and the second piston third block 723.
As shown in fig. 3, the valve body 1 is provided with a stopper 8 for restricting the movement stroke of the first and second distribution pistons 61 and 62.
As shown in fig. 3 and 4, the limiting piece 8 comprises a roller, a limiting groove 81 for the roller to slide along the direction from the first distribution piston 61 to the second distribution piston 62 is formed in the valve body 1, one end of the roller and the side wall of the limiting groove 81 are limited by a limiting clip 86, and two ends of the limiting groove 81 are communicated with a first piston second annular groove 716 and a second piston second annular groove 726; the first piston second annular groove 716 bottom is provided with a first piston first clamping groove 82 and a first piston second clamping groove 83 which are distributed along the length direction of the first distribution piston 61, the second piston second annular groove 726 bottom is provided with a second piston first clamping groove 84 and a second piston second clamping groove 85 which are distributed along the length direction of the second distribution piston 62, and the bottoms of the first piston first clamping groove 82, the first piston second clamping groove 83, the second piston first clamping groove 84 and the second piston second clamping groove 85 are arc-shaped bottoms, and the roller side surfaces are attached to the arc-shaped bottoms of one clamping groove on one distribution piston.
When one of the dispensing pistons moves, the arc groove bottom on the dispensing piston drives the roller to move away from the dispensing piston along the limit groove 81, and the roller is clamped into one of the clamping grooves of the other dispensing piston, when the roller is clamped into the clamping groove, the part of the roller away from the clamped clamping groove is positioned between the second blocking piece and the third blocking piece of the moving dispensing piston and is used for abutting against the second blocking piece or the third blocking piece so as to limit the moving stroke of the moving dispensing piston.
As shown in fig. 1 and 4, the valve body 1 is provided with a forming channel 16 coaxial with the oil duct and penetrating through the side wall of the side valve body 1 where the oil duct is located, and a blocking piece 17 for blocking the forming channel 16 is arranged in the forming channel 16.
The blocking member 17 comprises a steel ball which is in interference fit with the forming channel 16.
The flow calculation module comprises an inductor and a processor, wherein the inductor is arranged at one end of the first pumping channel 51, which is close to the first valve body 13, and is used for inducing the impact between the first control piston and the end wall of the pumping channel 5 and sending out an electric signal to the processor, and the processor is arranged in the first valve body 13 and is electrically connected with the inductor and is used for receiving the electric signal of the inductor so as to count the impact times and calculate the flow through the impact times.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. A flowmeter, characterized in that: the device comprises a valve body (1), a pump-out module (2) and a flow computing module, wherein the pump-out module (2) and the flow computing module are arranged on the valve body (1), the valve body (1) is provided with a liquid inlet (11) and a liquid outlet (12), the pump-out module (2) comprises a driving oil duct (3), a liquid outlet oil duct, a pumping channel (5), a distribution piston and a control piece arranged on the distribution piston, the driving oil duct (3) is connected with the liquid inlet (11), the liquid outlet oil duct is connected with the driving oil duct (3) and the liquid outlet (12), the distribution piston is slidingly connected in the pumping channel (5), the control piece is used for disconnecting the liquid outlet oil duct on one end of the pumping channel (5) from the liquid outlet oil duct (3), disconnecting the driving oil duct (3) on the other end of the pumping channel (5) from the liquid inlet (11) and conducting the driving oil duct, the flow computing module is arranged on the valve body (1) and used for detecting the contact times between the distribution piston and the end of the pumping channel (5) according to the contact times of the volume, and multiplying the number of times of collision is counted each time; the pumping channel (5) comprises a first pumping channel (51) and a second pumping channel (52), the distribution piston comprises a first distribution piston (61) and a second distribution piston (62), the first distribution piston (61) slides in the first pumping channel (51), the second distribution piston (62) slides in the second pumping channel (52), the control piece comprises a first control piece and a second control piece, a first channel first connecting port (511), a first channel second connecting port (512), a first channel third connecting port (513) and a first channel fourth connecting port (514) are sequentially formed in the first pumping channel (51); a second channel first connecting port (521), a second channel second connecting port (522), a second channel third connecting port (523) and a second channel fourth connecting port (524) are sequentially formed in the second pumping channel (52); the first channel first connecting port (511) is communicated with the second channel second connecting port (522) to form a first driving oil channel (31), the first channel second connecting port (512) is communicated with the second channel fourth connecting port (524) to form a second driving oil channel (32), the first channel third connecting port (513) is communicated with the second channel first connecting port (521) to form a third driving oil channel (33), and the first channel fourth connecting port (514) is communicated with the second channel third connecting port (523) to form a fourth driving oil channel (34); the first distribution piston (61) comprises a first cylinder, the first control piece comprises a first piston first blocking block (711), a first piston second blocking block (712), a first piston third blocking block (713) and a first piston fourth blocking block (714) which are sequentially arranged on the first cylinder and used for blocking the first pumping channel (51), and a first piston first annular groove (715), a first piston second annular groove (716) and a first piston third annular groove (717) are sequentially formed between two adjacent blocking blocks; the second distribution piston (62) comprises a second cylinder, and the second control part comprises a second piston first blocking block (721), a second piston second blocking block (722), a second piston third blocking block (723) and a second piston fourth blocking block (724) which are sequentially arranged on the second cylinder and used for blocking a second pumping channel (52), and a second piston first annular groove (725), a second piston second annular groove (726) and a second piston third annular groove (727) are sequentially formed between two adjacent blocking blocks; the liquid inlet (11) is positioned between the first channel second connecting port (512) and the first channel third connecting port (513), a first channel first outflow port (515) is arranged between the first channel first connecting port (511) and the first channel second connecting port (512), the first channel first outflow port (515) is positioned between the first piston first blocking block (711) and the first piston second blocking block (712), a first channel second outflow port (516) is arranged between the first channel third connecting port (513) and the first channel fourth connecting port (514), and the first channel second outflow port (516) is positioned between the first piston third blocking block (713) and the first piston fourth blocking block (714); a second channel first outflow port (525) is arranged between the second channel first connection port (521) and the second channel second connection port (522), the second channel first outflow port (525) is positioned between the second piston first blocking block (721) and the second piston second blocking block (722), a second channel second outflow port (526) is arranged between the second channel third connection port (523) and the second channel fourth connection port (524), and the second channel second outflow port (526) is positioned between the second piston third blocking block (723) and the second piston fourth blocking block (724); the liquid outlet oil duct comprises a first liquid outlet oil duct (41) and a second liquid outlet oil duct (42), wherein the first liquid outlet oil duct (41) is simultaneously communicated with a first channel first outflow port (515) and a second channel first outflow port (525) and is further communicated with the liquid outlet (12); the second liquid outlet oil duct (42) is simultaneously communicated with the first channel second outlet (516) and the second channel second outlet (526) and then is communicated with the liquid outlet (12); when one end of the first distribution piston (61) close to the first piston first blocking block (711) is abutted against the end of the first pumping channel (51), the first channel second connecting port (512) is positioned between the first piston second blocking block (712) and the first piston third blocking block (713), and the first channel third connecting port (513) is positioned between the first piston third blocking block (713) and the first piston fourth blocking block (714); when the other end of the first distribution piston (61) is in conflict with the end part of the first pumping channel (51), a first channel second connecting port (512) is positioned between a first piston first blocking block (711) and a first piston second blocking block (712), and a first channel third connecting port (513) is positioned between the first piston second blocking block (712) and a first piston third blocking block (713); when one end of the second distribution piston (62) close to the first blocking block (721) of the second piston is abutted against the end of the second pumping channel (52), a second channel second connecting port (522) is positioned between the second piston second blocking block (722) and a second piston third blocking block (723), and a second channel third connecting port (523) is positioned between the second piston third blocking block (723) and a second piston fourth blocking block (724); when the other end of the second distribution piston (62) is in conflict with the end part of the second pumping channel (52), a second channel second connecting port (522) is positioned between a second piston first blocking block (721) and a second piston second blocking block (722), and a second channel third connecting port (523) is positioned between the second piston second blocking block (722) and a second piston third blocking block (723); the flow calculation module comprises an inductor and a processor, wherein the inductor is arranged on the valve body (1) and is used for inducing the impact between the first distribution piston (61) or the second distribution piston (62) and the end wall of the pumping channel (5) and sending an electric signal to the processor, and the processor is electrically connected with the inductor and is used for receiving the electric signal of the inductor so as to count the impact times and calculate the flow through the impact times; the valve body (1) is provided with a limiting piece (8) for limiting the moving stroke of the first distribution piston (61) and the second distribution piston (62).
2. A flowmeter according to claim 1, wherein: the limiting piece (8) comprises a roller, a limiting groove (81) for the roller to slide along the direction from the first distribution piston (61) to the second distribution piston (62) is formed in the valve body (1), and two ends of the limiting groove (81) are communicated with the first piston second annular groove (716) and the second piston second annular groove (726); the bottom of the first piston second ring groove (716) is provided with a first piston first clamping groove (82) and a first piston second clamping groove (83) which are distributed along the length direction of the first distribution piston (61), the bottom of the second piston second ring groove (726) is provided with a second piston first clamping groove (84) and a second piston second clamping groove (85) which are distributed along the length direction of the second distribution piston (62), the bottoms of the first piston first clamping groove (82), the first piston second clamping groove (83), the second piston first clamping groove (84) and the second piston second clamping groove (85) are arc-shaped bottoms, and the side surface of the roller is attached to the arc-shaped bottom of one clamping groove on one distribution piston; when one of the distribution pistons moves, the arc groove bottom on the distribution piston drives the roller to be far away from the distribution piston along the limit groove (81), the roller is clamped into one clamping groove of the other distribution piston, and when the roller is clamped into the clamping groove, the part of the roller far away from the clamped clamping groove is positioned between the second blocking piece and the third blocking piece of the moving distribution piston and is used for abutting against the second blocking piece or the third blocking piece so as to limit the moving travel of the moving distribution piston.
3. A flowmeter according to claim 1, wherein: the valve body (1) is provided with a forming channel (16) which is coaxial with the oil duct and penetrates through the side wall of the side valve body (1) where the oil duct is located, and a blocking piece (17) for blocking the forming channel (16) is arranged in the forming channel (16).
4. A flowmeter according to claim 3, characterized in that: the blocking piece (17) comprises a steel ball arranged in the forming channel (16).
5. A flowmeter according to claim 1, wherein: one end of the valve body (1) is provided with a first valve body (13), and the flow calculation module is arranged in the first valve body (13).
6. A flowmeter according to claim 5, wherein: the first pumping channel (51) and the second pumping channel (52) penetrate through the valve body (1) along the length direction, a third valve body (15) is arranged on the valve body (1), and the third valve body (15) and the first valve body (13) are respectively positioned at two ends of the valve body (1) along the moving direction of the distribution piston and used for blocking the two ends of the first pumping channel (51) and the second pumping channel (52).
7. A flowmeter according to claim 5, wherein: the valve body (1) is provided with a second valve body (14), and the second valve body (14) is provided with an aviation plug (141).
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| CN112539787A (en) | 2021-03-23 |
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