CN116538060A - Distributed folding diaphragm pump - Google Patents
Distributed folding diaphragm pump Download PDFInfo
- Publication number
- CN116538060A CN116538060A CN202310654259.7A CN202310654259A CN116538060A CN 116538060 A CN116538060 A CN 116538060A CN 202310654259 A CN202310654259 A CN 202310654259A CN 116538060 A CN116538060 A CN 116538060A
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- Prior art keywords
- plunger
- piston
- channel
- annular
- boss
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000001802 infusion Methods 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
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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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/09—Pumps having electric drive
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/10—Pumps having fluid drive
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a distributed folding diaphragm pump, which belongs to the technical field of volumetric pumps, wherein a plunger is formed by a pump head protruding towards the inner side of an infusion channel, and a central channel is communicated with a liquid inlet and a liquid outlet of the pump head; the piston column is connected to one end of the corrugated connecting assembly, and the other end of the corrugated connecting assembly is connected to the plunger; the inner side threaded connection of the central channel has annular boss, and annular boss's center is formed with the center chamber, and the inboard of center chamber is fixed with the nut, has seted up the through-hole on the surface of nut, and the inboard of ripple coupling assembling is fixed to be provided with the screw, and the piston post drives screw axial displacement, and the screw passes through the nut and drives annular boss rotation, and annular boss is in order to fill the axial clearance between ripple coupling assembling and the plunger for the plunger axial displacement. According to the invention, the sealing mechanism capable of being matched with each other is arranged between the pump head and the bellows-shaped diaphragm piece, so that dead volume between the pump head and the bellows-shaped diaphragm piece is effectively reduced, transfusion precision is improved, and the device is suitable for special liquid outlet scenes such as pharmacy and medical treatment.
Description
Technical Field
The invention belongs to the technical field of volumetric pumps, and particularly relates to a distributed folding diaphragm pump.
Background
Pumps are machines that transport or pressurize fluids, and are of a wide variety of types, with reciprocating pumps being among the volumetric pumps in a wide range of applications. The reciprocating pump is periodically changed through the working containing cavity, and meanwhile, the liquid conveying function is realized by means of the one-way valve at the inlet and the outlet of the working containing cavity. Conventional volumetric pumps mainly include piston pumps, plunger pumps, diaphragm pumps, pressure test pumps, metering pumps, and the like. When a common positive displacement pump fails, the pump body needs to be disassembled for checking, overhauling or replacing parts. The disassembly work is complex and the time is long; the long production downtime causes excessive maintenance costs.
In order to solve the problem, in the prior art, a bellows-shaped diaphragm member is arranged in a pump body to replace a cylinder body structure of a general volumetric pump, and the periodic volume change is realized through the reciprocating movement of the bellows-shaped diaphragm member, so that the infusion function is achieved. The bellows-shaped diaphragm member is installed and connected with the pump head and can be detached and replaced along with the pump head; when the pump head is overhauled, the pump head can be directly replaced by a new pump head to continue working, so that the maintenance cost is effectively reduced. However, when the device is used, due to the action of the diaphragm piece, dead volume exists between the pump head and the bellows diaphragm, and the flow precision is low for special application scenes such as pharmacy, medical treatment and the like.
Disclosure of Invention
In view of the above, the present invention aims to provide a distributed folding diaphragm pump, which is provided with a sealing mechanism capable of being matched with each other between a pump head and a bellows diaphragm member, so that dead volume between the pump head and the bellows diaphragm member is effectively reduced, infusion precision is improved, and the distributed folding diaphragm pump is suitable for special liquid outlet scenes such as pharmacy and medical treatment.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention relates to a distributed folding diaphragm pump which comprises a pump body, a pump head communicated with an infusion channel of the pump body, a piston column arranged in the infusion channel, and a driving assembly for controlling the piston column to slide back and forth in the infusion channel, wherein the pump head protrudes towards the inner side of the infusion channel to form a plunger, the center of the plunger is provided with a center channel, and the center channel is communicated with a liquid inlet and a liquid outlet of the pump head; the piston column is connected to one end of the corrugated connecting assembly, and the other end of the corrugated connecting assembly is connected to the plunger; the inner side threaded connection of central passageway has annular boss, the center of annular boss is formed with the center chamber, the inboard of center chamber is fixed with the nut, the through-hole has been seted up on the surface of nut, the inboard of ripple coupling assembling is fixed to be provided with the screw, piston post drive screw axial displacement, the screw passes through the nut and drives annular boss rotation, annular boss is in order to fill the axial clearance between ripple coupling assembling and the plunger for plunger axial displacement.
Further, ripple coupling assembling includes left ring plate, bellows, right connecting plate, the bellows is connected between left ring plate and right connecting plate, left ring plate is connected with the plunger, right connecting plate is connected with the piston post. Through connecting the two ends of the corrugated pipe with the right connecting plate through the left annular plate, the two ends of the corrugated pipe can be conveniently connected and sealed with the plunger and the piston column.
Further, the screw is connected to the right connecting plate through a circular boss, the circular boss is made of elastic materials, and a central boss matched with the central cavity is formed in the middle of the circular boss. The circular boss is made of elastic materials, so that the sealing performance of the sealing mechanism can be effectively improved, and the dead volume area can be reduced.
Further, the extrusion chamber has been seted up to the inboard of circular boss, the axial in extrusion chamber passes through the spring support, the bellied outside in center seted up with the expansion chamber of extrusion chamber intercommunication, when the continuous axial displacement of annular boss, annular boss can cause the extrusion to the surface in extrusion chamber, and the air in the extrusion chamber receives the extrusion back, and expansion chamber can radially outwards expand to increase the leakproofness between the center of annular boss and the circular boss.
Further, the end face of the circular boss is provided with a ring groove, a rotating ring is in running fit in the ring groove, a plurality of groups of slender plugs are fixed on the outer side surface of the rotating ring, and the annular boss is provided with an extrusion channel matched with the slender plugs. The elongated plug is formed by uniformly distributing four fan-shaped strip columns along the circumferential direction at intervals, an elongated channel is formed by surrounding the centers of the four fan-shaped strip columns, a liquid discharge hole is further formed in the root of each fan-shaped strip column, and when the annular boss is sealed by the circular boss, the residual liquid is not easy to discharge.
Further, the extrusion passageway includes straight passageway and with the toper passageway of straight passageway intercommunication, the diameter of straight passageway with elongated stopper corresponds, can be convenient for compress elongated stopper, the one end of straight passageway communicates with the inner chamber of bellows, the other end of straight passageway is connected to the tip of toper passageway, the tip of big mouth of toper passageway extends to the left end face of annular boss.
Further, the right-hand member face of annular boss an organic whole is provided with the end plate, be connected with annular film between end plate and the plunger, form sealed compression chamber between annular film and end plate and the plunger, the compression intracavity is filled with compressed oil, the end plate is connected with the piston through branch, and the piston seals with the piston chamber relatively, the piston slides and sets up the piston intracavity that forms at the plunger right-hand member face, can control the expansion degree of compression intracavity through removing the piston, after expanding the compression chamber, can further extrude the inner space of bellows, reduce the production of dead volume.
Further, the left end face of the piston cavity is connected to the pressure relief channel and can be used for relieving pressure, so that the piston can conveniently move back and forth.
The invention has the beneficial effects that:
according to the invention, the annular boss is arranged and is relatively fixed with the nut, and when the corrugated connecting assembly moves reciprocally along with the piston column, the nut is driven to rotate by the internal screw mechanism, and the nut drives the annular boss to rotate; because the outer side of the annular boss is in threaded fit with the plunger, the annular boss and the corrugated pipe can move relatively in the axial direction. When the corrugated pipe is compressed to the limit position, one part of the annular boss extends out of the plunger and is mutually abutted with the circular boss, and at the moment, a gap between the plunger and the corrugated pipe, namely, a dead volume part is filled by the sealing mechanism.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the structure of the device of the present invention;
FIG. 2 is a schematic view of the corrugated connection assembly of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is an enlarged view of fig. 2 at B;
FIG. 5 is a schematic view of the structure of an elongated plug;
FIG. 6 is a schematic view of the screw and nut co-drive;
fig. 7 is a schematic diagram of the cooperation of the pin and the cam.
The figures are marked as follows: pump body 1, pump head 2, piston rod 3, plunger 4, central passage 5, bellows connecting assembly 6, annular boss 7, central chamber 8, nut 9, through hole 10, screw 11, left ring plate 12, bellows 13, right connecting plate 14, circular boss 15, central boss 16, extrusion chamber 17, spring 18, expansion chamber 19, elongated plug 20, extrusion passage 21, fan-shaped column 22, elongated passage 23, drain hole 24, straight passage 25, tapered passage 26, end plate 27, annular membrane 28, compression chamber 29, strut 30, piston 31, pressure release passage 32, motor 33, pulley 34, output shaft 35, cam 36, pin 37, chute 38, rotary ring 39, ring groove 40.
Detailed Description
As shown in fig. 1 to 5, the present invention relates to a distributed folding diaphragm pump, which comprises a pump body 1, wherein one side of the pump body 1 is connected with an infusion channel, the infusion channel is communicated with a pump head 2, a piston column 3 is slidably arranged in the infusion channel, a driving component controls the piston column 3 to slide reciprocally in the infusion channel, and the driving component can be a linear motor, a cylinder or other devices or components capable of performing linear reciprocal motion, but in the present invention, the driving component mainly comprises a motor 33, a belt pulley 34, a belt and a cam 36, and the specific structure is as follows, but no matter what structure is specifically adopted, the main purpose of the driving component is to control the reciprocal motion of the piston column 3 in the infusion channel. In the invention, a plunger 4 is formed by the pump head 2 protruding towards the inner side of the infusion channel, a central channel 5 is arranged in the center of the plunger 4, and the central channel 5 is communicated with a liquid inlet and a liquid outlet of the pump head 2 and is used for inputting or outputting liquid.
Wherein the piston column 3 is connected to one end of the corrugated connecting assembly 6 in a sealing way, and the other end of the corrugated connecting assembly 6 is connected to the plunger 4 in a sealing way; the inside of ripple coupling assembling 6 consequently can communicate with plunger 4, and the inboard threaded connection of central passageway 5 has annular boss 7, and annular boss 7's center is formed with central chamber 8, and the inboard of central chamber 8 is fixed with nut 9, has seted up through-hole 10 on the surface of nut 9, and the inboard of ripple coupling assembling 6 is fixed to be provided with screw 11, and ripple coupling assembling 6 includes bellows 13 that can axial displacement at least, and when piston post 3 along the axial displacement of infusion passageway, piston post 3 drives screw 11 axial displacement simultaneously. As shown in fig. 6, the nut 9 and the screw 11 are axially limited, and in circumferential rotation fit, the nut 9 is simultaneously fixed relative to the annular boss 7, and the annular boss 7 is in threaded connection with the central channel 5 of the plunger 4, so that when the screw 11 moves, the screw 11 drives the annular boss 7 to rotate relative to the plunger 4 through the nut 9, and the annular boss 7 simultaneously moves axially relative to the plunger 4 to fill an axial gap between the corrugated connection assembly 6 and the plunger 4.
In the running process of the pump body 1, the motor 33 rotates to drive the belt pulley 34 to rotate, the belt pulley 34 drives the output shaft 35 to rotate, the output shaft 35 drives the cam 36 in the pump body 1 to rotate, as shown in fig. 7, the side surface of the piston column 3 is fixedly provided with the pin shaft 37, the pin shaft 37 is slidably arranged on a chute 38 formed on the surface of the pump body 1 along the axial direction, the outer surface of the cam 36 is in contact with the pin shaft 37, when the cam 36 rotates, the surface of the cam 36 can act on the pin shaft 37, the piston column 3 can be driven to move back and forth through the pin shaft 37, an elastic recovery device can be connected between the piston column 3 and the pump body 1, and when the cam returns, the piston column 3 can be recovered to the original position, and the elastic recovery device can adopt the existing spring connection mechanism. The piston rod 3 extrudes or sucks the liquid in the corrugated tube 13 by extruding or drawing back the corrugated tube 13, the extrusion degree of the piston rod 3 can be controlled by controlling the rotation of the motor 33, thereby realizing the precision control of the liquid inlet and the liquid outlet, and the liquid is sucked from the liquid inlet and discharged from the liquid outlet by the motor 33, the belt, the cam 36, the piston rod 3 and the corrugated tube 13. The liquid inlet and the liquid outlet are both provided with one-way valves, so that the liquid is prevented from flowing reversely.
According to the invention, the annular boss 7 is arranged, the cross section of the annular boss 7 is L-shaped, the annular boss 7 is relatively fixed with the nut 9, and when the corrugated connecting assembly 6 moves reciprocally along with the piston column 3, the screw 11 moves axially through the screw 11 arranged above to drive the nut 9 and the annular boss 7 to rotate; since the outer side of the annular boss 7 is in threaded engagement with the plunger 4, the annular boss 7 and the bellows 13 are relatively moved in the axial direction. When the corrugated pipe 13 is compressed to the limit position, one part of the annular boss 7 extends out of the plunger 4 and is mutually abutted with the circular boss 15, and at the moment, a gap between the plunger 4 and the corrugated pipe 13, namely, a dead volume part is filled by a sealing mechanism taking the annular boss 7 as a main component part, so that the dead volume between the plunger 4 and the corrugated pipe can be effectively reduced, the infusion precision is improved by adopting the device provided by the invention, and the device is suitable for special liquid outlet scenes such as pharmacy and medical treatment.
Specifically, the corrugated connection assembly 6 includes a left ring plate 12, a corrugated tube 13, and a right connection plate 14, the corrugated tube 13 is connected between the left ring plate 12 and the right connection plate 14, the left ring plate 12 is connected with the plunger 4, and the right connection plate 14 is connected with the piston post 3. The screw 11 is connected to the right connection plate 14 by a circular boss 15, the circular boss 15 being made of an elastic material, a central boss 16 being formed in the middle of the circular boss 15 to cooperate with the central cavity 8.
In this embodiment, extrusion chamber 17 has been seted up to the inboard of circular boss 15, the axial of extrusion chamber 17 is supported through spring 18, the expansion chamber 19 with extrusion chamber 17 intercommunication has been seted up in the outside of central bellied 16, when annular boss 7 constantly axial displacement, annular boss 7 can cause the extrusion to extrusion chamber 17's surface, after the air in the extrusion chamber 17 received the extrusion, expansion chamber 19 can radially outwards expand, thereby increase the leakproofness between the center of annular boss 7 and the circular boss 15, avoid the emergence of the clearance backward flow etc. condition that exists between the center of annular boss 7 and the circular boss 15.
In this embodiment, the end surface of the circular boss 15 is provided with a ring groove 40, a rotating ring 39 is rotatably matched in the ring groove, a plurality of groups of elongated plugs 20 are fixed on the outer side surface of the rotating ring, and the annular boss 7 is provided with an extrusion channel 21 matched with the elongated plugs 20. At the maximum distance between the annular boss 7 and the circular boss 15, the elongated plug 20 is partially inserted into the pressing channel 21, so that the annular boss 7 rotates the elongated plug 20 at the beginning of rotation. The elongated plug 20 is formed by uniformly distributing four fan-shaped bar columns 22 along the circumferential direction at intervals, an elongated channel 23 is formed around the centers of the four fan-shaped bar columns 22, a liquid discharge hole 24 is further formed at the root of each fan-shaped bar column 22, and when the annular boss 7 is sealed by the circular boss 15, the residual liquid is not easy to discharge.
In this embodiment, the extrusion channel 21 includes a straight channel 25 and a tapered channel 26 communicating with the straight channel 25, the diameter of the straight channel 25 corresponds to that of the elongated plug 20, so that the elongated plug 20 can be compressed, one end of the straight channel 25 communicates with the inner cavity of the bellows 13, the other end of the straight channel 25 is connected to the small opening end of the tapered channel 26, and the large opening end of the tapered channel 26 extends to the left end face of the annular boss 7. By arranging the conical channel 26, the conical channel 26 can reduce the compression to the tail end of the elongated plug 20, so that the accumulated liquid at the tail end of the elongated plug 20 can be discharged in time, and the residual liquid in the conical channel 26 can be reduced by the guiding action of the structure of the conical channel 26, so that the infusion precision is ensured.
In this embodiment, the right end face of the annular boss 7 is integrally provided with an end plate 27, an annular film 28 is connected between the end plate 27 and the plunger 4, the protruding portion of the annular film 28 can also be equivalent to a part of a closed structure, a sealed compression cavity 29 is formed between the annular film 28 and the end plate 27 and between the annular film 29 and the plunger 4, compressed oil is filled in the compression cavity 29, the end plate 27 is connected with a piston 31 through a supporting rod 30, the piston 31 is annular, the piston 31 is sealed with the piston 31 cavity relatively, the piston 31 is slidably arranged in the piston 31 cavity formed on the right end face of the plunger 4, the expansion degree in the compression cavity 29 can be controlled by moving the piston 31, after the compression cavity 29 is expanded, the inner space of the corrugated pipe 13 can be further extruded, and the generation of dead volume is reduced.
In this embodiment, the left end face of the cavity of the piston 31 is connected to the pressure release channel 32, which can be used for releasing pressure, so as to facilitate the forward and backward movement of the piston 31. According to the invention, a bellows diaphragm member is arranged in the pump body 1 to replace a cylinder body structure of a common volumetric pump, and the function of transfusion is achieved through compression and retraction of a bellows. The corrugated pipe is connected with the pump head 2 in an installation way, and can be detached and replaced along with the pump head 2; when the pump head 2 is overhauled, the new pump head 2 can be directly replaced to continue working, so that the maintenance cost is effectively reduced.
In the invention, the driving assembly is started in the working process, the piston column 3 moves along the axial direction of the infusion channel under the action of the driving assembly, and the corrugated connecting assembly 6 connected with the piston column 3 also moves back and forth along with the piston column 3 at the moment, so that the corrugated pipe 13 is compressed or retracted to output or discharge liquid. At the moment, when the corrugated pipe 13 is compressed, the piston column 3 drives the screw 11 to axially displace at the same time, and the nut 9 drives the annular boss 7 to rotate; since the outer side of the annular boss 7 is in threaded engagement with the plunger 4, the annular boss 7 and the bellows 13 are relatively moved in the axial direction. When the corrugated pipe 13 is compressed to the limit position, one part of the annular boss 7 extends out of the plunger 4 and is mutually abutted with the circular boss 15, and at the moment, a gap between the plunger 4 and the corrugated pipe 13, namely, a dead volume part is filled by the sealing mechanism, so that the dead volume between the plunger 4 and the corrugated pipe can be effectively reduced by adopting the device, the infusion precision is improved, and the device is suitable for special liquid outlet scenes such as pharmacy and medical treatment.
Claims (9)
1. The utility model provides a distributed folding diaphragm pump, includes the pump body (1), with pump head (2) of the infusion passageway intercommunication of pump body (1), set up piston post (3) in the infusion passageway, control piston post (3) are in the drive assembly of the reciprocal slip in the infusion passageway, its characterized in that: the pump head (2) protrudes inwards of the infusion channel to form a plunger (4), a central channel (5) is formed in the center of the plunger (4), and the central channel (5) is communicated with a liquid inlet and a liquid outlet of the pump head (2); the piston column (3) is connected to one end of a corrugated connection assembly (6), and the other end of the corrugated connection assembly (6) is connected to the plunger (4); the inner side threaded connection of central passageway (5) has annular boss (7), the center of annular boss (7) is formed with center chamber (8), the inboard of center chamber (8) is fixed with nut (9), through-hole (10) have been seted up on the surface of nut (9), the inboard of ripple coupling assembling (6) is fixed to be provided with screw (11), piston post (3) drive screw (11) axial displacement, screw (11) drive annular boss (7) rotatory through nut (9), annular boss (7) are in order to fill the axial clearance between ripple coupling assembling (6) and the plunger (4) for plunger (4) axial displacement.
2. A distributed folded diaphragm pump according to claim 1, wherein: the corrugated connecting assembly (6) comprises a left annular plate (12), a corrugated pipe (13) and a right connecting plate (14), wherein the corrugated pipe (13) is connected between the left annular plate (12) and the right connecting plate (14), the left annular plate (12) is connected with the plunger (4), and the right connecting plate (14) is connected with the piston column (3).
3. A distributed folded diaphragm pump according to claim 2, wherein: the screw (11) is connected to the right connecting plate (14) through a circular boss (15), the circular boss (15) is made of elastic materials, and a central boss (16) matched with the central cavity (8) is formed in the middle of the circular boss (15).
4. A distributed folded diaphragm pump according to claim 3, wherein: the inner side of the circular boss (15) is provided with an extrusion cavity (17), the axial direction of the extrusion cavity (17) is supported by a spring (18), the outer side of the central boss (16) is provided with an expansion cavity (19) communicated with the extrusion cavity (17), and the expansion cavity (19) can expand outwards in the radial direction.
5. A distributed folded diaphragm pump according to claim 4, wherein: annular grooves (40) are formed in the end faces of the circular bosses (15), rotating rings (39) are in running fit in the annular grooves, a plurality of groups of slender plugs (20) are fixed on the outer side surfaces of the rotating rings, and extrusion channels (21) matched with the slender plugs (20) are formed in the annular bosses (7).
6. A distributed folded diaphragm pump according to claim 5, wherein: the elongated plug (20) is formed by uniformly distributing four fan-shaped strip columns (22) along the circumferential direction at intervals, an elongated channel (23) is formed around the centers of the four fan-shaped strip columns (22), and a liquid discharge hole (24) is formed in the root of each fan-shaped strip column (22).
7. A distributed folded diaphragm pump according to claim 5, wherein: the extrusion channel (21) comprises a straight channel (25) and a conical channel (26) communicated with the straight channel (25), the diameter of the straight channel (25) corresponds to that of the elongated plug (20), one end of the straight channel (25) is communicated with the inner cavity of the corrugated pipe (13), the other end of the straight channel (25) is connected to the small opening end of the conical channel (26), and the large opening end of the conical channel (26) extends to the left end face of the annular boss (7).
8. A distributed folded diaphragm pump according to any of claims 1-7, characterized in that: the utility model discloses a piston, including annular boss (7), piston (31) and piston (31) cavity, the right-hand member face of annular boss (7) is integrative to be provided with end plate (27), be connected with annular film (28) between end plate (27) and plunger (4), form sealed compression chamber (29) between annular film (28) and end plate (27) and plunger (4), compression chamber (29) intussuseption is filled with compressed oil, end plate (27) are connected with piston (31) through branch (30), piston (31) slip sets up in piston (31) intracavity that plunger (4) right-hand member face formed.
9. A distributed folded diaphragm pump according to claim 8, wherein: the left end face of the cavity of the piston (31) is connected to a pressure relief channel (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310654259.7A CN116538060B (en) | 2023-06-02 | 2023-06-02 | Distributed folding diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310654259.7A CN116538060B (en) | 2023-06-02 | 2023-06-02 | Distributed folding diaphragm pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116538060A true CN116538060A (en) | 2023-08-04 |
| CN116538060B CN116538060B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310654259.7A Active CN116538060B (en) | 2023-06-02 | 2023-06-02 | Distributed folding diaphragm pump |
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| CN108266372A (en) * | 2018-03-04 | 2018-07-10 | 太原理工大学 | A kind of valve type flow radial plunger emulsion pump |
| CN112539167A (en) * | 2020-12-17 | 2021-03-23 | 深圳市益思精密五金有限公司 | Plunger pump with corrugated diaphragm piece |
-
2023
- 2023-06-02 CN CN202310654259.7A patent/CN116538060B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548074A1 (en) * | 1994-12-26 | 1996-07-25 | Aisin Seiki | Bellows pump with bellows between the operating chambers |
| CN2620110Y (en) * | 2003-04-17 | 2004-06-09 | 宜兴市宙斯泵业有限公司 | Improved liquid medium diaphragm positive displacement pump |
| EP1947331A1 (en) * | 2007-01-19 | 2008-07-23 | Garniman SA | Hydraulically Driven Machine Improvement |
| TW200925422A (en) * | 2007-12-03 | 2009-06-16 | Koganei Ltd | Chemical solution supply facility and pump assemblage |
| CN107061215A (en) * | 2017-06-02 | 2017-08-18 | 德帕姆(杭州)泵业科技有限公司 | Plunger type metering pump No leakage fluid end structure |
| CN108266372A (en) * | 2018-03-04 | 2018-07-10 | 太原理工大学 | A kind of valve type flow radial plunger emulsion pump |
| CN112539167A (en) * | 2020-12-17 | 2021-03-23 | 深圳市益思精密五金有限公司 | Plunger pump with corrugated diaphragm piece |
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| CN116538060B (en) | 2024-01-30 |
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