CN112343783B - Metering pump with buffering and current stabilizing functions - Google Patents
Metering pump with buffering and current stabilizing functions Download PDFInfo
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- CN112343783B CN112343783B CN202011221067.XA CN202011221067A CN112343783B CN 112343783 B CN112343783 B CN 112343783B CN 202011221067 A CN202011221067 A CN 202011221067A CN 112343783 B CN112343783 B CN 112343783B
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- side wall
- shell
- bearing block
- metering pump
- adjusting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
Abstract
The invention relates to a metering pump with a buffering and flow stabilizing function, which relates to the technical field of metering pumps.A water inlet pipe is connected to the water inlet end of a metering pump body through a joint, and a water outlet pipe is connected to the output end of the metering pump body through a joint; it also comprises a branch pipe, a steady flow mechanism and a buffer mechanism; the water inlet end of the water outlet pipe is connected with a branch pipe through a connector, the branch pipe is vertical to the direction of the water outlet pipe, and the central axis of the branch pipe is parallel to the water outlet direction of the metering pump body; the middle part of inlet tube is provided with stationary flow mechanism, and the right-hand member of branch pipe is connected with buffer gear, can cushion the power of hitting that rivers shock wave produced, has reduced the harm to pipeline and measuring pump, has reduced the shake of pipeline to reduce the maintenance cost.
Description
Technical Field
The invention relates to the technical field of metering pumps, in particular to a metering pump with a buffering and flow stabilizing function.
Background
At present, most metering pumps are reciprocating displacement pumps, and when the metering pumps reciprocate, the output flow and pressure are intermittent, so that the pipeline content of the metering pumps is easy to generate a water hammer effect, wherein the water hammer refers to that when power is suddenly cut off, valves are closed too fast, the interior of a pump body reciprocates and the like, water flow shock waves are generated due to the inertia of pressure water flow, and the water hammer is just like a hammer to beat; the force generated by the water flow shock wave back and forth is sometimes large, so that a valve, a pipeline and a water pump are damaged, the intermittent shaking of the pipeline is caused, the pipeline is easily damaged, and the maintenance cost is increased.
Disclosure of Invention
The invention aims to provide a metering pump with a buffering and flow stabilizing function, which has the advantages of simple structure, reasonable design and convenience in use, can buffer the impact force generated by water flow shock waves, reduces the damage to a pipeline and the metering pump, reduces the shake of the pipeline and further reduces the maintenance cost.
In order to achieve the purpose, the invention adopts the technical scheme that: it comprises a metering pump body, a water inlet pipe and a water outlet pipe; the water inlet end of the metering pump body is connected with a water inlet pipe through a joint, and the output end of the metering pump body is connected with a water outlet pipe through a joint; it also comprises a branch pipe, a steady flow mechanism and a buffer mechanism; the water inlet end of the water outlet pipe is connected with a branch pipe through a connector, the branch pipe is vertical to the direction of the water outlet pipe, and the central axis of the branch pipe is parallel to the water outlet direction of the metering pump body; the middle part of the water inlet pipe is provided with a steady flow mechanism, and the right end of the branch pipe is connected with a buffer mechanism;
the flow stabilizing mechanism comprises a first shell, an inner shell, a first spring, a second spring, a pressure bearing block and an adjusting sleeve; the middle part of the water inlet pipe is fixedly connected with a first shell, the water inlet pipe is communicated with the inside of the first shell, an inner shell is movably arranged inside the first shell, the inner shell is of a hollow structure with openings at the left end and the right end, the left side wall and the right side wall of the inner shell are respectively abutted against the left side wall and the right side wall inside the first shell, a gap is arranged between the outer side wall of the inner shell and the inner side wall of the first shell, a plurality of first springs are arranged inside the gap, one end of each first spring is fixedly connected with the inner side wall of the first shell, and the other end of each first spring is fixedly connected with the outer side wall of the inner shell; the middle part of the inner shell is provided with a pressure bearing block and an adjusting sleeve, the right end of the pressure bearing block is movably inserted at the left end of the adjusting sleeve, and a flange on the outer side wall of the right end of the pressure bearing block is clamped with the inner side wall of the left end of the adjusting sleeve; a second spring is arranged between the right side wall of the pressure bearing block and the right side wall inside the adjusting sleeve, the left end of the second spring is abutted against the right side wall of the pressure bearing block, and the right end of the second spring is abutted against the right side wall inside the adjusting sleeve; a plurality of first constant current rods are vertically and fixedly arranged on the outer side wall of the left end of the bearing block at an equal-round angle, a plurality of second constant current rods are vertically and fixedly arranged on the outer side wall of the right end of the adjusting sleeve at an equal-round angle, and the length of each first constant current rod is larger than that of each second constant current rod;
the buffer mechanism comprises a second shell, an adjusting plate, an anti-skid washer, a third spring and a piston; the utility model discloses a set up the casing of No. two of right-hand member fixedly connected with of branch pipe, the branch pipe is linked together with the inside of No. two casings and is set up, the inside of No. two casings is provided with the piston, the perisporium of piston and the inside wall of No. two casings inconsistent set up, No. three springs of fixedly connected with on the right side wall of piston, the right-hand member fixedly connected with regulating plate of No. three springs, fixed cover is equipped with the anti-skidding packing ring on the lateral wall of regulating plate, the lateral wall of anti-skidding packing ring and the inside wall of No. two casings inconsistent set up.
Furthermore, two mounting grooves are formed in the left side wall and the right side wall of the inner shell respectively, the two mounting grooves are arranged in an annular shape, O-shaped sealing rings are fixedly arranged inside the mounting grooves, and the O-shaped sealing rings are arranged in a manner of being abutted against the left side wall and the right side wall inside the first shell; the cavity between the inner shell and the first shell is sealed by the O-shaped sealing ring, so that the corrosion of the first spring is reduced.
Furthermore, sealing washers are fixedly arranged on the outer side wall of the flange at the right end of the pressure bearing block and the inner side wall at the left end of the adjusting sleeve, and the sealing washers are respectively arranged in a manner of being abutted against the inner side wall of the adjusting sleeve and the outer side wall of the pressure bearing block; the sealing washer seals between the adjusting sleeve and the bearing block, and reduces the corrosion of the second spring.
Furthermore, a first guide groove is formed in the inner side wall of the inner shell in an equiangular manner, guide wheels are rotatably arranged at the end parts of the first flow stabilizing rod and the second flow stabilizing rod through shaft seats, and the guide wheels are arranged inside the first guide groove in a rolling manner; when the bearing block and the adjusting sleeve are struck by water flow under the water hammer effect, the bearing block and the adjusting sleeve move left and right, and the guide wheel and the first guide groove limit and guide the left and right movement of the bearing block and the adjusting sleeve.
Furthermore, an adjusting block is fixedly arranged on the upper side of the right side wall of the adjusting plate, the right side wall of the adjusting block is arranged in an inclined manner, a partition plate is fixedly arranged inside a second shell on the right side of the adjusting block, a gap is arranged between the partition plate and the right side wall of the second shell, and shear thickening fluid is filled in the gap; the middle part of the clapboard is rotatably provided with a rotating shaft through a sealing bearing, the left end of the rotating shaft is fixedly connected with an eccentric shaft, the right end of the rotating shaft is rotatably arranged on the right side wall in the second shell through a bearing, and a plurality of rotating plates are fixedly arranged on the rotating shaft extending in the shear thickening fluid and in an equal round angle; spherical joints are movably embedded on the inclined plane on the right side of the adjusting block and the left side wall at the lower end of the eccentric shaft, and the spherical joints on the left side and the right side are fixedly connected through a connecting rod; the regulating plate receives the thrust effect of No. three springs to move to the right for the regulating plate promotes the regulating block and moves to the right, because the connection drive effect of spherical joint and connecting rod, the eccentric shaft carries out the transmission effect round the center pin of pivot, thereby make the pivot drive commentaries on classics board rotate in the inside of shear thickening liquid, because the characteristic of shear thickening liquid, the commentaries on classics board is at its inside slow rotation, when the piston atress suddenly, the resistance grow of shear thickening liquid slows down the speed of regulating plate right.
Furthermore, a second guide groove is formed in the inner top surface of the second shell, a sliding block is fixedly arranged on the top surface of the adjusting block, and the sliding block is arranged inside the second guide groove in a sliding manner; the adjusting block is limited and guided through the matching of the sliding block and the second guide groove.
The working principle of the invention is as follows: when water flow entering the metering pump body from the water inlet pipe vibrates due to a water hammer effect, the water flow strikes the left side wall of the pressure bearing block and the inner side wall of the inner shell, a first spring buffers striking force borne on the four peripheral walls of the inner shell, a second spring buffers the pressure bearing block through reverse compression force, the pressure bearing block and the adjusting sleeve move left and right in the inner shell to stabilize reciprocating exciting water flow, and meanwhile, the outer diameter of the adjusting sleeve is larger than that of the pressure bearing block to stabilize the water flow from left to right; the water flow after primary steady flow passes through the metering pump body, firstly impacts the left side wall of the piston due to the over-high speed, and is buffered due to the reverse compression force of the third spring and the friction force between the anti-skidding gasket and the inner side wall of the second shell, and meanwhile, the adjusting plate does not directly contact with the right side wall of the second shell when moving rightwards, so that the impact influence on the second shell is reduced; the water flow after buffering and speed reduction is discharged from the water outlet pipe.
After adopting the structure, the invention has the beneficial effects that:
1. an inner shell in the flow stabilizing mechanism is buffered through a first spring, and striking force of the surging water flow in all directions is smoothed;
2. the pressure bearing block, the adjusting sleeve and the second spring arranged in the flow stabilizing mechanism carry out flow stabilizing operation on the middle part of water flow, and meanwhile, the outer diameter of the adjusting sleeve is larger than that of the pressure bearing block, so that flow can be further stabilized;
3. through the reverse compression force of the third spring inside the buffer mechanism and the friction force between the anti-skidding gasket and the inner side wall of the second shell, water flow is buffered.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a schematic view of a connection structure of a bearing block, a first flow stabilizing rod and a guide wheel of the invention.
Description of reference numerals:
the metering pump comprises a metering pump body 1, a water inlet pipe 2, a water outlet pipe 3, a branch pipe 4, a flow stabilizing mechanism 5, a first shell 5-1, an inner shell 5-2, a first spring 5-3, a pressure bearing block 5-4, an adjusting sleeve 5-5, a second spring 5-6, a first flow stabilizing rod 5-7, a second flow stabilizing rod 5-8, a buffer mechanism 6, a second shell 6-1, a piston 6-2, a third spring 6-3, an adjusting plate 6-4, an anti-slip gasket 6-5, an installing groove 7, an O-shaped sealing ring 8, a sealing ring 9, a first guide groove 10, a guide wheel 11, an adjusting block 12, a partition plate 13, shear thickening liquid 14, a rotating shaft 15, a rotating plate 16, a spherical joint 17, a connecting rod 18, a second guide groove 19, a sliding block 20 and an eccentric shaft 21.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, the technical solution adopted by the present embodiment is: the metering pump comprises a metering pump body 1, a water inlet pipe 2 and a water outlet pipe 3; the water inlet end of the metering pump body 1 is connected with a water inlet pipe 2 through a joint, and the output end of the metering pump is connected with a water outlet pipe 3 through a joint; the device also comprises a branch pipe 4, a flow stabilizing mechanism 5 and a buffer mechanism 6; the water inlet end of the water outlet pipe 3 is connected with a branch pipe 4 through a joint, the branch pipe 4 is vertical to the direction of the water outlet pipe 3, and the central axis of the branch pipe 4 is parallel to the water outlet direction of the metering pump body 1; the middle part of the water inlet pipe 2 is provided with a steady flow mechanism 5, and the right end of the branch pipe 4 is connected with a buffer mechanism 6;
the flow stabilizing mechanism 5 comprises a first shell 5-1, an inner shell 5-2, a first spring 5-3, a second spring 5-6, a pressure bearing block 5-4 and an adjusting sleeve 5-5; the middle part of the water inlet pipe 2 is fixedly connected with a first shell 5-1 through a flange and a bolt, the water inlet pipe 2 is communicated with the inside of the first shell 5-1, an inner shell 5-2 is movably arranged inside the first shell 5-1, the inner shell 5-2 is a hollow structure with openings at the left end and the right end, the left side wall and the right side wall of the inner shell 5-2 are respectively abutted against the left side wall and the right side wall inside the first shell 5-1, a gap is arranged between the outer side wall of the inner shell 5-2 and the inner side wall of the first shell 5-1, a plurality of first springs 5-3 are arranged in the gap, one ends of the first springs 5-3 are fixedly welded with the inner side wall of the first shell 5-1, and the other ends of the first springs 5-3 are fixedly welded with the outer side wall of the inner shell 5-2; the middle part of the inner shell 5-2 is provided with a pressure bearing block 5-4 and an adjusting sleeve 5-5, the right end of the pressure bearing block 5-4 is movably inserted at the left end of the adjusting sleeve 5-5, and a flange on the outer side wall of the right end of the pressure bearing block 5-4 is clamped with the inner side wall of the left end of the adjusting sleeve 5-5; a second spring 5-6 is arranged between the right side wall of the pressure bearing block 5-4 and the right side wall inside the adjusting sleeve 5-5, the left end of the second spring 5-6 is abutted against the right side wall of the pressure bearing block 5-4, and the right end of the second spring 5-6 is abutted against the right side wall inside the adjusting sleeve 5-5; four first constant current rods 5-7 are vertically and fixedly welded with equal round corners on the outer side wall of the left end of the pressure bearing block 5-4, four second constant current rods 5-8 are vertically and fixedly welded with equal round corners on the outer side wall of the right end of the adjusting sleeve 5-5, and the length of the first constant current rod 5-7 is larger than that of the second constant current rod 5-8; two mounting grooves 7 are formed in the left side wall and the right side wall of the inner shell 5-2, the two mounting grooves 7 are arranged in an annular shape, an O-shaped sealing ring 8 made of rubber is fixedly arranged in each mounting groove 7, and the O-shaped sealing ring 8 is arranged in a manner of being abutted against the left side wall and the right side wall in the first shell 5-1; an O-shaped sealing ring 8 seals a cavity between the inner shell 5-2 and the first shell 5-1, so that the corrosion of the first spring 5-3 is reduced; a first guide groove 10 is formed in the inner side wall of the inner shell 5-2 in a round angle shape, guide wheels 11 are rotatably arranged at the end parts of the first flow stabilizing rod 5-7 and the second flow stabilizing rod 5-8 through shaft seats, and the guide wheels 11 are arranged inside the first guide groove 10 in a rolling mode; when the pressure-bearing block 5-4 and the adjusting sleeve 5-5 are struck by water flow under the water hammer effect, the pressure-bearing block and the adjusting sleeve move left and right, and the guide wheel 11 and the first guide groove 10 limit and guide the left and right movement of the pressure-bearing block 5-4 and the adjusting sleeve 5-5; the outer side wall of the flange at the right end of the pressure bearing block 5-4 and the inner side wall at the left end of the adjusting sleeve 5-5 are fixedly provided with rubber sealing gaskets 9 through gluing, and the sealing gaskets 9 are respectively abutted to the inner side wall of the adjusting sleeve 5-5 and the outer side wall of the pressure bearing block 5-4; the sealing washer 9 seals between the adjusting sleeve 5-5 and the bearing block 5-4, so that the corrosion of the second spring 5-6 is reduced;
the buffer mechanism 6 comprises a second shell 6-1, an adjusting plate 6-4, an anti-skid washer 6-5, a third spring 6-3 and a piston 6-2; the right end of the branch pipe 4 is fixedly connected with a second shell 6-1, the branch pipe 4 is communicated with the inside of the second shell 6-1, a piston 6-2 is arranged inside the second shell 6-1, the peripheral wall of the piston 6-2 is arranged in a manner of being abutted to the inner side wall of the second shell 6-1, a third spring 6-3 is fixedly connected to the right side wall of the piston 6-2 through a bolt, an adjusting plate 6-4 is fixedly welded to the right end of the third spring 6-3, an anti-slip washer 6-5 is fixedly sleeved on the outer side wall of the adjusting plate 6-4 through gluing, and the outer side wall of the anti-slip washer 6-5 is arranged in a manner of being abutted to the inner side wall of the second shell 6-1;
an adjusting block 12 is fixedly welded on the upper side of the right side wall of the adjusting plate 6-4, the right side wall of the adjusting block 12 is arranged in an inclined manner, a partition plate 13 is fixedly welded inside a second shell 6-1 on the right side of the adjusting block 12, a gap is formed between the partition plate 13 and the right side wall of the second shell 6-1, and shear thickening fluid 14 is filled inside the gap; a rotating shaft 15 is rotatably arranged in the middle of the partition plate 13 through a sealing bearing, an eccentric shaft 21 is fixedly welded at the left end of the rotating shaft 15, the right end of the rotating shaft 15 is rotatably arranged on the right side wall inside the second shell 6-1 through a bearing, and a plurality of rotating plates 16 are fixedly welded on the rotating shaft 15 extending inside the shear thickening fluid 14 at equal fillets; the spherical joints 17 are movably embedded on the inclined plane on the right side of the adjusting block 12 and the left side wall at the lower end of the eccentric shaft 21, and the spherical joints 17 on the left side and the right side are fixedly welded through a connecting rod 18; a second guide groove 19 is formed in the inner top surface of the second shell 6-1, a sliding block 20 is fixedly welded on the top surface of the adjusting block 12, and the sliding block 20 is arranged inside the second guide groove 19 in a sliding mode; the adjusting block 12 is limited and guided by the matching of the sliding block 20 and the second guide groove 19.
The working principle of the specific embodiment is as follows: when water flow entering the metering pump body 1 from the water inlet pipe 2 vibrates due to a water hammer effect, the water flow strikes the left side wall of the pressure bearing block 5-4 and the inner side wall of the inner shell 5-2, a first spring 5-3 buffers striking force borne on the peripheral wall of the inner shell 5-2, reverse compression force of a second spring 5-6 buffers the pressure bearing block 5-4, the pressure bearing block 5-4 and the adjusting sleeve 5-5 move left and right in the inner shell 5-2 to stabilize reciprocating surge water flow, the outer diameter of the adjusting sleeve 5-5 is larger than that of the pressure bearing block 5-4, and water flow from left to right is stabilized; the water flow after primary steady flow passes through the metering pump body 1 and impacts on the left side wall of the piston 6-2 at first due to the over-high speed, the water flow is buffered due to the reverse compression force of the third spring 6-3 and the friction force between the anti-skidding gasket 6-5 and the inner side wall of the second shell 6-1, and meanwhile, the adjusting plate 6-4 does not directly contact with the right side wall of the second shell 6-1 when moving rightwards, so that the impact influence on the second shell 6-1 is reduced; the adjusting plate 6-4 pushes the adjusting block 12 to move rightwards, the eccentric shaft 21 performs transmission action around the central shaft of the rotating shaft 15 due to the connection transmission action of the spherical joint 17 and the connecting rod 18, so that the rotating shaft 15 drives the rotating plate 16 to rotate inside the shear thickening liquid 14, the rotating plate 16 rotates slowly inside the shear thickening liquid 14 due to the characteristic of the shear thickening liquid 14, when the piston 6-2 is suddenly stressed, the resistance of the shear thickening liquid 14 is increased, and the rightwards speed of the adjusting plate 6-4 is reduced; the water flow after buffering and speed reduction is discharged from the water outlet pipe 3.
After adopting above-mentioned structure, this embodiment beneficial effect does:
1. an inner shell 5-2 in the flow stabilizing mechanism 5 is buffered through a first spring 5-3, and striking force of the surging water flow in all directions is gentle;
2. the pressure bearing block 5-4, the adjusting sleeve 5-5 and the second spring 5-6 arranged in the flow stabilizing mechanism 5 perform flow stabilizing operation on the middle part of water flow, and meanwhile, the outer diameter of the adjusting sleeve 5-5 is larger than that of the pressure bearing block 5-4, so that flow can be further stabilized;
3. the water flow is buffered by the reverse compression force of a third spring 6-3 in the buffer mechanism 6 and the friction force between the anti-skidding gasket 6-5 and the inner side wall of a second shell 6-1;
4. due to the characteristics of the shear thickening fluid 14, the rotating plate 16 rotates slowly in the rotating plate, when the piston 6-2 is stressed suddenly, the resistance of the shear thickening fluid 14 is increased, and the rightward speed of the adjusting plate 6-4 is reduced.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a measuring pump with buffering stationary flow function which characterized in that: the metering pump comprises a metering pump body (1), a water inlet pipe (2) and a water outlet pipe (3); the water inlet end of the metering pump body (1) is connected with a water inlet pipe (2) through a joint, and the output end of the metering pump is connected with a water outlet pipe (3) through a joint; the device also comprises a branch pipe (4), a steady flow mechanism (5) and a buffer mechanism (6); the water inlet end of the water outlet pipe (3) is connected with a branch pipe (4) through a joint, the branch pipe (4) is vertical to the direction of the water outlet pipe (3), and the central axis of the branch pipe (4) is parallel to the water outlet direction of the metering pump body (1); a flow stabilizing mechanism (5) is arranged in the middle of the water inlet pipe (2), and the right end of the branch pipe (4) is connected with a buffer mechanism (6);
the flow stabilizing mechanism (5) comprises a first shell (5-1), an inner shell (5-2), a first spring (5-3), a second spring (5-6), a pressure bearing block (5-4) and an adjusting sleeve (5-5); the middle part of the water inlet pipe (2) is fixedly connected with a first shell (5-1), the water inlet pipe (2) is communicated with the inside of the first shell (5-1), the inside of the first shell (5-1) is movably provided with an inner shell (5-2), the inner shell (5-2) is of a hollow structure with openings at the left end and the right end, the left side wall and the right side wall of the inner shell (5-2) are respectively abutted against the left side wall and the right side wall of the inside of the first shell (5-1), a gap is arranged between the outer side wall of the inner shell (5-2) and the inner side wall of the first shell (5-1), a plurality of first springs (5-3) are arranged in the gap, one ends of the first springs (5-3) are fixedly connected with the inner side wall of the first shell (5-1), and the other ends of the first springs (5-3) are fixedly connected with the outer side wall of the inner shell (5-2); the middle part of the inner shell (5-2) is provided with a pressure bearing block (5-4) and an adjusting sleeve (5-5), the right end of the pressure bearing block (5-4) is movably inserted at the left end of the adjusting sleeve (5-5), and a flange on the outer side wall of the right end of the pressure bearing block (5-4) is clamped with the inner side wall of the left end of the adjusting sleeve (5-5); a second spring (5-6) is arranged between the right side wall of the pressure bearing block (5-4) and the right side wall inside the adjusting sleeve (5-5), the left end of the second spring (5-6) is in collision with the right side wall of the pressure bearing block (5-4), and the right end of the second spring (5-6) is in collision with the right side wall inside the adjusting sleeve (5-5); a plurality of first constant current rods (5-7) are vertically and fixedly arranged on the outer side wall of the left end of the pressure bearing block (5-4) at an equal fillet, a plurality of second constant current rods (5-8) are vertically and fixedly arranged on the outer side wall of the right end of the adjusting sleeve (5-5) at an equal fillet, and the length of each first constant current rod (5-7) is larger than that of each second constant current rod (5-8);
the buffer mechanism (6) comprises a second shell (6-1), an adjusting plate (6-4), an anti-skid washer (6-5), a third spring (6-3) and a piston (6-2); the right end of the branch pipe (4) is fixedly connected with a second shell (6-1), the branch pipe (4) is communicated with the inside of the second shell (6-1), a piston (6-2) is arranged inside the second shell (6-1), the peripheral wall of the piston (6-2) is arranged in a manner of being abutted to the inner side wall of the second shell (6-1), a third spring (6-3) is fixedly connected to the right side wall of the piston (6-2), an adjusting plate (6-4) is fixedly connected to the right end of the third spring (6-3), an anti-slip washer (6-5) is fixedly sleeved on the outer side wall of the adjusting plate (6-4), and the outer side wall of the anti-slip washer (6-5) is arranged in a manner of being abutted to the inner side wall of the second shell (6-1).
2. The metering pump with the buffering and flow stabilizing functions as claimed in claim 1, wherein: two mounting grooves (7) are formed in the left side wall and the right side wall of the inner shell (5-2), the two mounting grooves (7) are arranged in an annular shape, an O-shaped sealing ring (8) is fixedly arranged inside the mounting grooves (7), and the O-shaped sealing ring (8) is arranged in a manner of being abutted to the left side wall and the right side wall inside the first shell (5-1); an O-shaped sealing ring (8) seals a cavity between the inner shell (5-2) and the first shell (5-1) to reduce the corrosion of the first spring (5-3).
3. The metering pump with the buffering and flow stabilizing functions as claimed in claim 1, wherein: sealing washers (9) are fixedly arranged on the outer side wall of the flange at the right end of the pressure bearing block (5-4) and the inner side wall at the left end of the adjusting sleeve (5-5), and the sealing washers (9) are respectively arranged in a manner of being abutted against the inner side wall of the adjusting sleeve (5-5) and the outer side wall of the pressure bearing block (5-4); the sealing washer (9) seals between the adjusting sleeve (5-5) and the bearing block (5-4) to reduce the corrosion of the second spring (5-6).
4. The metering pump with the buffering and flow stabilizing functions as claimed in claim 1, wherein: a first guide groove (10) is formed in the inner side wall of the inner shell (5-2) at an equal round angle, guide wheels (11) are rotatably arranged at the end parts of the first flow stabilizing rod (5-7) and the second flow stabilizing rod (5-8) through shaft seats, and the guide wheels (11) are arranged inside the first guide groove (10) in a rolling mode; when the pressure-bearing block (5-4) and the adjusting sleeve (5-5) are struck by water flow under the water hammer effect, the pressure-bearing block and the adjusting sleeve move left and right, and the guide wheel (11) and the first guide groove (10) limit and guide the left and right movement of the pressure-bearing block (5-4) and the adjusting sleeve (5-5).
5. The metering pump with the buffering and flow stabilizing functions as claimed in claim 1, wherein: an adjusting block (12) is fixedly arranged on the upper side of the right side wall of the adjusting plate (6-4), the right side wall of the adjusting block (12) is arranged in an inclined manner, a partition plate (13) is fixedly arranged inside a second shell (6-1) on the right side of the adjusting block (12), a gap is arranged between the partition plate (13) and the right side wall of the second shell (6-1), and shear thickening fluid (14) is filled inside the gap; a rotating shaft (15) is rotatably arranged in the middle of the partition plate (13) through a sealing bearing, an eccentric shaft (21) is fixedly connected to the left end of the rotating shaft (15), the right end of the rotating shaft (15) is rotatably arranged on the right side wall in the second shell (6-1) through a bearing, and a plurality of rotating plates (16) are fixedly arranged on the rotating shaft (15) extending into the shear thickening fluid (14) in an equi-circular angle manner; spherical joints (17) are movably embedded on the inclined plane on the right side of the adjusting block (12) and the left side wall at the lower end of the eccentric shaft (21), and the spherical joints (17) on the left side and the right side are fixedly connected through a connecting rod (18); the adjusting plate (6-4) moves rightwards under the thrust action of the third spring (6-3), so that the adjusting plate (6-4) pushes the adjusting block (12) to move rightwards, the eccentric shaft (21) performs transmission action around the central shaft of the rotating shaft (15) due to the connection transmission action of the spherical joint (17) and the connecting rod (18), so that the rotating shaft (15) drives the rotating plate (16) to rotate in the shearing thickening liquid (14), the rotating plate (16) slowly rotates in the shearing thickening liquid (14) due to the characteristic of the shearing thickening liquid (14), when the piston (6-2) is suddenly stressed, the resistance of the shearing thickening liquid (14) is increased, and the rightwards speed of the adjusting plate (6-4) is reduced.
6. The metering pump with the buffering and flow stabilizing functions as claimed in claim 5, wherein: a second guide groove (19) is formed in the inner top surface of the second shell (6-1), a sliding block (20) is fixedly arranged on the top surface of the adjusting block (12), and the sliding block (20) is arranged inside the second guide groove (19) in a sliding manner; the adjusting block (12) is limited and guided through the matching of the sliding block (20) and the second guide groove (19).
7. The metering pump with the buffering and flow stabilizing functions as claimed in claim 1, wherein: the working principle is as follows: when water flow entering the metering pump body (1) from the water inlet pipe (2) vibrates due to a water hammer effect, the water flow strikes the left side wall of the pressure bearing block (5-4) and the inner side wall of the inner shell (5-2), a first spring (5-3) buffers striking force borne on the peripheral wall of the inner shell (5-2), reverse compression force of a second spring (5-6) buffers the pressure bearing block (5-4), the pressure bearing block (5-4) and the adjusting sleeve (5-5) move left and right in the inner shell (5-2) to stabilize reciprocating exciting water flow, and meanwhile the outer diameter of the adjusting sleeve (5-5) is larger than that of the pressure bearing block (5-4) to stabilize the water flow from left to right; the water flow after primary steady flow passes through the metering pump body (1), firstly impacts on the left side wall of the piston (6-2) due to the over-high speed, and is buffered due to the reverse compression force of the third spring (6-3) and the friction force between the anti-skidding gasket (6-5) and the inner side wall of the second shell (6-1), and meanwhile, the adjusting plate (6-4) does not directly contact with the right side wall of the second shell (6-1) when moving to the right, so that the impact influence on the second shell (6-1) is reduced; the water flow after buffering and speed reduction is discharged from the water outlet pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011221067.XA CN112343783B (en) | 2020-11-05 | 2020-11-05 | Metering pump with buffering and current stabilizing functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011221067.XA CN112343783B (en) | 2020-11-05 | 2020-11-05 | Metering pump with buffering and current stabilizing functions |
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| CN112343783A CN112343783A (en) | 2021-02-09 |
| CN112343783B true CN112343783B (en) | 2022-04-19 |
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| CN202011221067.XA Active CN112343783B (en) | 2020-11-05 | 2020-11-05 | Metering pump with buffering and current stabilizing functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117129137B (en) * | 2023-10-24 | 2023-12-26 | 常州天利智能控制股份有限公司 | Pressure transmitter for chemical pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU8075987A (en) * | 1986-10-03 | 1988-04-21 | Hirano, H. | Hydraulic ram |
| JP2015113970A (en) * | 2013-12-16 | 2015-06-22 | アック東北株式会社 | Header pipe or discharge pipe and pump facility |
| CN203742962U (en) * | 2013-12-31 | 2014-07-30 | 宇宙电路板设备(深圳)有限公司 | Metering pump with function of buffering and stabilizing liquid |
| CN208281128U (en) * | 2018-06-14 | 2018-12-25 | 河南省智慧农业灌溉科技有限公司 | Water pump water hammer cancellation element |
| CN210600655U (en) * | 2019-09-04 | 2020-05-22 | 浦江凯瑞生物科技股份有限公司 | Metering pump with buffering and current stabilizing functions |
| CN211640568U (en) * | 2020-01-06 | 2020-10-09 | 晋江鼎辉机械有限公司 | PVC plastic powder mixer with water hammer remove device |
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