CN111379683A - Pneumatic pump and pneumatic pump assembly with same - Google Patents
Pneumatic pump and pneumatic pump assembly with same Download PDFInfo
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- CN111379683A CN111379683A CN202010331866.6A CN202010331866A CN111379683A CN 111379683 A CN111379683 A CN 111379683A CN 202010331866 A CN202010331866 A CN 202010331866A CN 111379683 A CN111379683 A CN 111379683A
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- plunger
- rod
- pneumatic pump
- cylinder
- shoulder
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 43
- 238000003825 pressing Methods 0.000 claims description 21
- 230000009975 flexible effect Effects 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link
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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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a pneumatic pump and a pneumatic pump assembly with the same, wherein the pneumatic pump comprises a pneumatic motor, an upper cylinder body and an output rod, the plunger cylinder assembly comprises a plunger cylinder, a plunger and a plunger rod, at least part of the plunger rod and at least part of the plunger are movably arranged in the plunger cylinder, one end of the plunger rod is provided with a lower connecting part matched with the upper connecting part, and the other end of the plunger rod is connected with the plunger so that the plunger rod and the plunger can reciprocate under the drive of the output rod to drive fluid below the plunger to move towards an outlet; one end of the piston rod is connected with the plunger, the other end of the piston rod is connected with the valve body, and the piston rod and the valve body are movably arranged in the lower cylinder body; the connecting assembly comprises at least two clamping pieces and a clamping sleeve, the at least two clamping pieces are clamped on the outer peripheral sides of the upper connecting portion and the lower connecting portion to connect the upper connecting portion and the lower connecting portion, and the clamping sleeve is sleeved on the outer sides of the at least two clamping pieces to lock the at least two clamping pieces. The pneumatic pump provided by the embodiment of the invention has the advantages of simple structure and easiness in disassembly and maintenance.
Description
Technical Field
The invention relates to the field of pump body manufacturing, in particular to a pneumatic pump and a pneumatic pump assembly with the same.
Background
The pneumatic motor and the pump assembly of the pneumatic pump in the related art are usually connected through a fixing pin or a bolt, the structure is complex, the pneumatic pump is easy to damage and is not easy to disassemble and maintain, meanwhile, in the operation process of the pneumatic pump, the vibration is large, and due to the fact that fluid contains certain impurities, the pneumatic pump is easy to block and cannot work.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to propose a pneumatic pump which is structurally simple and easy to disassemble and maintain.
The invention also provides a pneumatic pump assembly with the pneumatic pump.
The pneumatic pump comprises a pneumatic motor, wherein the pneumatic motor comprises an upper cylinder body and an output rod, an upper piston which moves in a reciprocating mode is arranged in the upper cylinder body, one end of the output rod is connected with the upper piston, and an upper connecting part is arranged at the other end of the output rod; the plunger cylinder assembly comprises a plunger cylinder, a plunger and a plunger rod, the plunger cylinder is formed into a cylinder body penetrating along the axial direction of the plunger cylinder and is provided with an outlet communicated with the cylinder body, at least part of the plunger rod and at least part of the plunger are movably arranged in the plunger cylinder, the plunger is constructed to enable fluid below the plunger to move towards the outlet, one end of the plunger rod is provided with a lower connecting part matched with the upper connecting part, and the other end of the plunger rod is connected with the plunger so that the plunger rod and the plunger can reciprocate under the driving of the output rod to drive the fluid below the plunger to move towards the outlet; the piston pump assembly comprises a lower cylinder body, a valve body and a piston rod, one end of the piston rod is connected with the plunger, the other end of the piston rod is connected with the valve body, and the piston rod and the valve body are movably arranged in the lower cylinder body; the connecting assembly comprises at least two clamping pieces and a clamping sleeve, the at least two clamping pieces are clamped on the outer peripheral sides of the upper connecting portion and the lower connecting portion to connect the upper connecting portion and the lower connecting portion, and the clamping sleeve is sleeved on the outer sides of the at least two clamping pieces to lock the at least two clamping pieces.
According to the pneumatic pump provided by the embodiment of the invention, the upper connecting part and the lower connecting part are respectively arranged on the output rod of the pneumatic motor and the plunger rod of the plunger cylinder assembly, the connecting assembly is arranged, at least two clamping pieces of the connecting assembly are clamped on the upper connecting part and the lower connecting part, and the clamping pieces are locked by the clamping sleeves, so that the starting motor is simpler to connect with the plunger cylinder assembly and the piston pump assembly, and is easy to integrally assemble, disassemble and maintain.
According to some embodiments of the invention, the upper connecting portion is formed as an upper flange extending outward in a radial direction of the output rod, the lower connecting part is formed into a lower convex edge extending outwards along the radial direction of the plunger rod, the upper convex edge and the lower convex edge are concentrically arranged and have the same radial size, the number of the clamping pieces is two, each clamping piece is formed into a semi-cylindrical structure, the upper end and the lower end of each clamping piece are respectively provided with an upper inner convex edge and a lower inner convex edge which extend inwards along the radial direction, the two clamping pieces are clamped on the outer peripheral sides of the upper convex edge and the lower convex edge oppositely from each other at the left and the right, the distance between the inner walls of the two clamping pieces is equal to the radial dimension of the upper convex edge, and the distance between the upper inner convex edge of each clamping piece and the corresponding lower inner convex edge is equal to the sum of the thicknesses of the upper convex edge and the lower convex edge.
According to some embodiments of the present invention, an outer circumferential side of the engaging member adjacent to the lower side of the engaging member is provided with an outer engaging groove which is recessed inward in the radial direction, the engaging member further includes an elastic member and a ball, a part of the ball is disposed in the outer engaging groove, and another part of the ball protrudes out of the outer engaging groove, the elastic member is disposed in the outer engaging groove and located between the ball and a bottom wall of the outer engaging groove to push the ball to protrude out of the outer engaging groove, an inner side wall of the ferrule opposite to the outer engaging groove is provided with an inner engaging groove which is recessed outward in the radial direction, and when the ferrule is sleeved on the engaging member, the inner engaging groove engages with an outer side of the ball.
According to some embodiments of the present invention, the upper edge of the ferrule is provided with a supporting shoulder extending inward in the radial direction, the supporting shoulder is supported by the upper inward protruding edge when the ferrule is sleeved on the engaging member, and a distance between a bottom wall of the supporting shoulder and a lower edge of the ferrule in the axial direction is equal to a distance between a top wall of the upper inward protruding edge of the engaging member and a bottom wall of the lower inward protruding edge.
According to some embodiments of the present invention, the plunger cylinder assembly further comprises a sealing assembly disposed at an upper end of the plunger cylinder and adjacent to the opening, the sealing assembly comprises an upper sealing bushing and a lower sealing bushing, the upper sealing bushing and the lower sealing bushing are both sleeved on the plunger rod and located between an outer peripheral side of the plunger rod and an inner wall of the plunger cylinder, and an inner peripheral wall of the lower sealing bushing is provided with a through groove penetrating along an axial direction of the lower sealing bushing and being recessed outward along a radial direction of the lower sealing bushing.
According to some embodiments of the present invention, the through groove is plural, and the plural through grooves are uniformly arranged at intervals in a circumferential direction of an inner wall of the lower seal boss.
According to some embodiments of the present invention, the upper sealing sleeve includes an upper body, an extension extending outward in a radial direction of a lower edge of the upper body, and an upper shoulder disposed at a lower end of the upper body, the lower edge of the upper body is connected to an upper edge of the upper shoulder through the extension, an installation space is formed between an inner wall of the upper shoulder and an outer circumferential wall of the plunger rod, and a sealing ring is disposed in the installation space.
According to some embodiments of the invention, the lower sealing hub includes a lower body and a lower shoulder disposed at an upper end of the lower body, the lower shoulder extending outwardly along a peripheral wall of the lower body, a lower surface of the upper shoulder and an upper surface of the lower body abutting each other to secure the sealing ring between an inner wall of the upper shoulder, the upper surface of the lower shoulder and the upper surface of the lower body and the peripheral wall of the plunger rod.
According to some embodiments of the invention, the top cover of the upper cylinder is provided with a gland adapted to cooperate with a press block of a frame of the pneumatic pump assembly to press the pneumatic pump against the frame.
A pneumatic pump assembly according to an embodiment of the second aspect of the invention comprises: the frame is arranged on the bottom plate and comprises a first telescopic pressure rod, a second telescopic pressure rod and a cross beam, wherein the first telescopic pressure rod and the second telescopic pressure rod are arranged at intervals, the cross beam is positioned between the first telescopic pressure rod and the second telescopic pressure rod, and a bolt column extending downwards and a pressing block fastened to the bolt column are arranged in the middle of the cross beam; according to the pneumatic pump of the embodiment of the first aspect, the pressing block is pressed against the pressing cover of the upper cylinder of the pneumatic pump; the lower cylinder body of the pneumatic pump is connected with the pressure plate; at least two stands, two at least stand symmetries in first flexible depression bar with between the flexible depression bar of second and every the both ends of stand respectively with the crossbeam with the pressure disk links to each other, wherein, first flexible depression bar with the flexible activity of second is in order to drive along its axial direction the pneumatic pump reciprocates.
According to the pneumatic pump assembly provided by the embodiment of the invention, the pressing block is arranged to be matched with the pressing cover of the pneumatic pump, so that the pneumatic pump is pressed on the bottom plate, the vibration generated in the operation process of the pneumatic pump can be effectively reduced, the stability is improved, and the pneumatic pump according to the embodiment of the first aspect of the invention is adopted, so that the connection of the starting motor, the plunger cylinder assembly and the piston pump assembly is simpler, the integral assembly and disassembly and maintenance are easy, and in addition, compared with the connection mode of adopting the fixing pin or the fixing bolt in the related technology, the replacement of users is convenient due to the fact that all parts are detachable parts, and the maintenance cost is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a pneumatic pump according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of a pneumatic pump according to an embodiment of the present invention;
FIG. 3 is a schematic view of a coupling assembly of a pneumatic pump according to an embodiment of the present invention;
FIG. 4 is an assembled cross-sectional view of a snap member of a connection assembly of a pneumatic pump according to an embodiment of the present invention;
FIG. 5 is an assembled top view of a snap member of a connection assembly of a pneumatic pump according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a ferrule of a coupling assembly of a pneumatic pump according to an embodiment of the present invention;
FIG. 7 is a top view of a ferrule of a coupling assembly of a pneumatic pump according to an embodiment of the present invention;
FIG. 8 is a partial view of a ram cylinder assembly of a pneumatic pump according to an embodiment of the present invention;
FIG. 9 is a top view of a lower seal bushing of a pneumatic pump according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of a lower seal bushing of a pneumatic pump according to an embodiment of the present invention;
FIG. 11 is a schematic view of a pneumatic pump assembly according to an embodiment of the present invention.
Reference numerals:
a pneumatic pump 100;
a pneumatic motor 10; an upper cylinder 11; an upper piston 12; an output rod 13; a gland 14; an upper convex edge 131;
a plunger cylinder assembly 20; a plunger cylinder 21; a plunger 22; a plunger rod 23; an outlet 211; a lower ledge 231;
a piston pump assembly 30; a lower cylinder 31; a valve body 32; a piston rod 33;
a connecting assembly 40; an engaging piece 41; a ferrule 42; the balls 43; an elastic member 44;
an upper inner ledge 411; a lower inner ledge 412; an outer card slot 413; a support shoulder 421; an inner card slot 422;
an upper seal bush 51; a lower seal bushing 52; a seal ring 53;
an upper body 511; an extension 512; an upper shoulder 513; a lower body 521; a lower shoulder 522; a through groove 523;
a pneumatic pump assembly 300;
a base plate 310; a frame 320; a first telescopic strut 321; a second telescopic strut 322; a beam 323;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A pneumatic pump 100 according to an embodiment of the first aspect of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 10, a pneumatic pump 100 according to an embodiment of the present invention includes a pneumatic motor 10, a plunger cylinder assembly 20, a piston pump assembly 30, and a connecting assembly 40.
The pneumatic motor 10 comprises an upper cylinder body 11 and an output rod 13, an upper piston 12 reciprocating along the vertical direction is arranged in the upper cylinder body 11, the upper end of the output rod 13 is connected with the upper piston 12, the other end of the output rod 13 is provided with an upper connecting part, and the upper piston 12 reciprocates to drive the output rod 13 to reciprocate up and down.
The plunger cylinder assembly 20 mainly comprises a plunger cylinder 21, a plunger 22 and a plunger rod 23, wherein the plunger cylinder 21 is formed into a through barrel structure, the plunger cylinder 21 is provided with an outlet 211 communicated with the barrel, at least part of the plunger rod 23 and at least part of the plunger 22 are movably arranged in the plunger cylinder 21 along the axial direction, and the plunger 22 is constructed to enable fluid pumped up under the plunger 22 to move towards the outlet 211, so that the pumped fluid can flow to a specified destination through an outlet 211 connecting hose or other conduits. One end of the plunger rod 23 is provided with a lower connecting part which is suitable for being matched with the upper connecting part, and the other end of the plunger rod 23 is connected with the plunger 22, so that the upper piston 12 of the pneumatic motor reciprocates to drive the output rod 13 to reciprocate, and the plunger rod 23 and the plunger 22 are driven to reciprocate through the output rod 13, and the fluid to be pumped below the plunger 22 is output from the outlet 211.
Further, the piston pump assembly 30 mainly comprises a lower cylinder 31, a valve body 32 and a piston rod 33, one end of the piston rod 33 is fixedly connected with the plunger 22, the other end of the piston rod is connected with the valve body 32, the valve body 32 can be a one-way valve, so that backflow of fluid to be pumped entering the lower cylinder 31 is avoided, the piston rod 33 and the valve body 32 are movably arranged in the lower cylinder 31, the piston rod 22 drives the lower cylinder to reciprocate along the vertical direction, and the fluid to be pumped is pumped into the lower cylinder 31 through matching between the lower cylinder 31 and the valve body 32.
The connecting assembly 40 mainly comprises at least two engaging members 41 and a sleeve 42, wherein the at least two engaging members 41 are engaged with the outer peripheries of the upper connecting portion and the lower connecting portion, so as to connect the upper connecting portion and the lower connecting portion, and the sleeve 42 is sleeved on the outer peripheries of the at least two engaging members 41, so as to lock the engaging members 41, the upper connecting portion and the lower connecting portion, thereby ensuring the reliability of the connection between the pneumatic motor 10 and the plunger cylinder 21 set and the piston pump assembly 30.
Therefore, according to the pneumatic pump 100 of the embodiment of the present invention, the upper connecting portion and the lower connecting portion are respectively disposed on the output rod 13 of the pneumatic motor 10 and the plunger rod 23 of the plunger cylinder assembly 20, the connecting assembly 40 is disposed, at least two engaging members 41 of the connecting assembly 40 are engaged with the upper connecting portion and the lower connecting portion, and the engaging members 41 are locked by the ferrule 42, so that the connection between the starting motor and the plunger cylinder assembly 20 and the plunger pump assembly 30 is simpler, and the overall assembly, disassembly and maintenance are easier.
As shown in fig. 1 to 3, in some embodiments of the present invention, the upper connecting portion is formed as an upper flange 131 extending outward in a radial direction of the lower end of the output rod 13, the lower connecting portion is formed as a lower flange 231 extending outward in a radial direction of the plunger rod 23, and the upper flange 131 and the lower flange 231 are concentrically arranged and have the same radial size, so that the upper and lower connecting portions can be easily fitted to the connecting assembly 40, and the reliability of the connection after assembly can be ensured.
Further, in some examples, the lower end of the output rod 13 is provided with a lower reduced diameter portion and a lower extension rod connected with the lower end of the lower reduced diameter portion, the upper end of the plunger rod 23 is provided with an upper reduced diameter portion and an upper extension rod connected with the upper end of the upper reduced diameter portion, the upper flange 131 is connected with the lower extension rod, the lower flange 231 is connected with the upper extension rod, the engaging member 41 is engaged with the outer peripheral sides of the upper flange 131 and the lower flange 231, and the maximum radial dimension of the engaging member 41 is substantially equal to the radial dimension of the upper end of the output rod 13, so that the overall appearance effect of the pneumatic motor 10 and the plunger cylinder assembly 20 after the connecting assembly 40 is assembled is ensured.
As shown in fig. 2 and 4, in some embodiments, in order to secure the reliability of the engagement between the engaging pieces 41 and the upper and lower ledges 131 and 231, the plunger rod 23 and the output rod 13 are effectively fixed, the engaging pieces 41 may be two, the two engaging pieces 41 are respectively formed in a semi-cylindrical structure, and an upper end of each engaging piece 41 is provided with an upper inner ledge 411 extending inward in the radial direction, a lower end of each engaging piece 41 is provided with a lower inner ledge 412 extending inward in the radial direction, the two engaging pieces 41 are engaged with the outer peripheral sides of the upper and lower ledges 131 and 231 on the left and right, a space between the inner side walls of the cylinder of the two engaging pieces 41 is equal to a radial dimension of the upper ledge 131 or the lower ledge 231, and a space between a lower surface of the upper inner ledge 411 and an upper surface of the lower inner ledge 412 of each engaging piece 41 is equal to a sum of thicknesses of the upper and lower ledges 131 and 231.
As shown in fig. 4 and 5, in some embodiments, an outer slot 413 is disposed on an outer peripheral side of the engaging element 41 adjacent to the lower side, the outer slot 413 is formed by being recessed in the box along a radial direction of the engaging element 41, the engaging element 41 further includes an elastic element 44 and a ball 43, the elastic element 44 may be a spring, a portion of the ball 43 is clamped in the outer slot 413, another portion of the ball 43 protrudes out of the outer slot 413, the elastic element 44 is disposed between the ball 43 and a bottom wall of the outer slot 413 to push the ball 43 to protrude out of the outer slot 413, an inner slot 422 is disposed at a position of an inner side wall of the sleeve 42 opposite to the outer slot 413, the inner slot 422 is recessed outward along the radial direction of the sleeve 42, so that, when the sleeve 42 engages the engaging element 41 downward, a lower edge of the inner slot 422 first presses the ball 43 to compress the elastic element 44 to make the ball 43 be recessed in the outer slot 413, and then the elastic element 44 recovers to deform under an elastic, therefore, the locking of the clamping part 41 is realized, the connection process is simplified, and the parts are all detachable parts, so that the maintenance and the replacement are convenient.
As shown in fig. 2 and 6, in some examples, the upper edge of the ferrule 42 is provided with a support shoulder 421 extending inward in the radial direction, the support shoulder 421 supports the top wall of the upper inner flange 411 when the ferrule 42 is sleeved on the engaging member 41, and the distance between the bottom wall of the support shoulder 421 and the lower edge of the ferrule 42 in the axial direction is equal to the distance between the top wall of the upper inner flange 411 and the bottom wall of the lower inner flange 412 of the engaging member 41, so that the tightness of fit between the ferrule 42 and the engaging member 41 can be further ensured, and the reliability is improved.
As shown in fig. 1 and 8, in some embodiments, in order to prevent the fluid to be pumped entering the plunger cylinder 21 from flowing out through the gap between the inner side wall of the plunger cylinder 21 and the plunger rod 23, the plunger cylinder assembly 20 further includes a sealing assembly disposed at the upper end of the plunger cylinder 21 and arranged adjacent to the opening, the sealing assembly mainly consists of an upper sealing sleeve 51 and a lower sealing sleeve 52, the upper sealing sleeve 51 and the lower sealing sleeve 52 are both sleeved on the outer peripheral side of the plunger rod 23 and are located between the plunger rod 23 and the inner wall of the plunger cylinder 21, the inner peripheral wall of the lower sealing sleeve 52 is provided with a through groove 523 recessed outwards in the radial direction of the upper sealing sleeve 51, and the through groove 523 penetrates in the axial direction of the lower sealing sleeve 52, so that compared with the sealing assembly in the related art, the sealing effect can be achieved, and the phenomenon that the plunger rod 23 is jammed due to impurities due to the fluid to be pumped entering the plunger cylinder 21 can be avoided, resulting in the failure of the pneumatic pump 100.
Further, in some examples, the through groove 523 may be formed as an arc-shaped groove, so as to further improve the flow guiding effect, prevent the plunger rod 23 from being jammed, and improve reliability.
As shown in fig. 9 and 10, in some examples, in order to further improve the flow guiding effect of the through groove 523, the through groove 523 may be provided in plurality, and the through grooves 523 are uniformly spaced along the axial direction of the inner wall of the lower seal bushing 52.
As shown in fig. 8, in some examples, the upper sealing sleeve 51 includes an upper body 511, an extension 512 extending outward in a radial direction of a lower edge of the upper body 511, and an upper shoulder 513 provided at a lower end of the upper body 511, the lower edge of the upper body 511 is connected to an upper edge of the upper shoulder 513 through the extension 512, an inner wall of the upper shoulder 513 and an outer circumferential wall of the plunger rod 23 form a mounting space, and the sealing ring 53 is disposed in the mounting space.
As shown in fig. 8, in some examples, the lower sealing sleeve 52 includes a lower body 521 and a lower shoulder 522 disposed at the upper end of the lower body 521, the lower shoulder 522 extends outwards along the outer peripheral wall of the lower body 521, the lower surface of the upper shoulder 513 abuts against the upper surface of the lower shoulder 522 and the upper surface of the lower body 521 so as to fix the sealing ring 53 in the installation space formed between the inner wall of the upper shoulder 513, the upper surface of the lower shoulder 522, the upper surface of the lower body 521 and the outer peripheral wall of the plunger rod 23, so that the sealing reliability is ensured by the cooperation among the upper sealing sleeve 51, the lower sealing sleeve 52 and the sealing ring 53.
Referring to fig. 1, in some embodiments of the present invention, the top cover of the upper cylinder 11 is provided with a pressing cover 14, and the pressing cover 14 is adapted to cooperate with a pressing block 325 on the frame 320 so as to press the air pump 100 against the bottom plate 310 of the frame 320, so that the cooperation between the pressing block 325 and the pressing cover 14 can reduce vibration of the air pump 100 during operation and improve stability.
A pneumatic pump assembly 300 according to an embodiment of the second aspect of the present invention is described below with reference to fig. 1-11.
The pneumatic pump assembly 300 according to an embodiment of the present invention includes a base plate 310, a frame 320, the pneumatic pump 100 according to the above-described embodiment of the present invention, a pressure plate 330, and at least two uprights 340.
The frame 320 is disposed on the bottom plate 310, the frame 320 includes a first telescopic pressing rod 321, a second telescopic pressing rod 322, and a beam 323 located between the first telescopic pressing rod 321 and the second telescopic pressing rod 322, a bolt column 324 extending downward along a vertical direction is disposed in the middle of the beam 323, a pressing block 325 is fastened to the bolt column 324, and the pressing block 325 can be pressed on the upper surface of the gland 14 of the upper cylinder 11 of the pneumatic pump 100, so that vibration of the pneumatic pump 100 in the operation process can be reduced by cooperation between the pressing block 325 and the gland 14, and stability is improved.
Further, the lower cylinder 31 of the pneumatic pump 100 is connected with the pressure plate 330, at least two upright posts 340 are symmetrically arranged between the first telescopic pressure rod 321 and the second telescopic pressure rod 322, the top end of each upright post 340 is connected with the cross beam 323, and the bottom end of each upright post 340 is connected with the pressure plate 330, so that the stability and reliability of the pneumatic pump 100 connected to the frame 320 can be further ensured by matching the upright posts 340, the cross beams 323, the pressing blocks 325 and the bolt posts 324 with the pneumatic pump 100 and the pressure plate 330, and the first telescopic pressure rod 321 and the second telescopic pressure rod 322 can move up and down along the axial direction thereof in a telescopic manner to drive the pneumatic pump 100 to integrally move up and down, thereby ensuring the convenience of adjustment of the pneumatic pump 100.
Therefore, according to the pneumatic pump assembly 300 of the embodiment of the present invention, the pressing block 325 is arranged to cooperate with the pressing cover 14 of the pneumatic pump 100 to press the pneumatic pump 100 against the bottom plate 310, so that vibration generated during operation of the pneumatic pump 100 can be effectively reduced, and stability is improved, and by using the pneumatic pump 100 of the embodiment of the first aspect of the present invention, connection between the pneumatic motor and the plunger cylinder assembly 20 and connection between the pneumatic motor and the piston pump assembly 30 are simpler, and the pneumatic pump is easy to be integrally assembled and disassembled and maintained.
In the description of the present invention, it is to be understood that the terms "center", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
Other constructions and the like and operation of the pneumatic pump 100 and the pneumatic pump assembly 300 having the same according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A pneumatic pump, comprising:
the pneumatic motor comprises an upper cylinder body and an output rod, an upper piston which reciprocates is arranged in the upper cylinder body, one end of the output rod is connected with the upper piston, and the other end of the output rod is provided with an upper connecting part;
the plunger cylinder assembly comprises a plunger cylinder, a plunger and a plunger rod, the plunger cylinder is formed into a cylinder body penetrating along the axial direction of the plunger cylinder and is provided with an outlet communicated with the cylinder body, at least part of the plunger rod and at least part of the plunger are movably arranged in the plunger cylinder, the plunger is constructed to enable fluid below the plunger to move towards the outlet, one end of the plunger rod is provided with a lower connecting part matched with the upper connecting part, and the other end of the plunger rod is connected with the plunger so that the plunger rod and the plunger can reciprocate under the driving of the output rod to drive the fluid below the plunger to move towards the outlet;
the piston pump assembly comprises a lower cylinder body, a valve body and a piston rod, one end of the piston rod is connected with the plunger, the other end of the piston rod is connected with the valve body, and the piston rod and the valve body are movably arranged in the lower cylinder body;
the connecting assembly comprises at least two clamping pieces and a clamping sleeve, the at least two clamping pieces are clamped on the outer peripheral sides of the upper connecting portion and the lower connecting portion to connect the upper connecting portion and the lower connecting portion, and the clamping sleeve is sleeved on the outer sides of the at least two clamping pieces to lock the at least two clamping pieces.
2. A pneumatic pump according to claim 1, wherein the upper connecting portion is formed as an upper ledge extending outwardly in a radial direction of the output rod, the lower connecting portion is formed as a lower ledge extending outwardly in a radial direction of the plunger rod, the upper ledge and the lower ledge are concentrically arranged and have an equal radial dimension,
the clamping pieces are two, each clamping piece is of a semi-cylindrical structure, an upper inner convex edge and a lower inner convex edge which extend inwards in the radial direction are arranged at the upper end and the lower end of each clamping piece respectively, the two clamping pieces are clamped on the outer peripheral sides of the upper convex edge and the lower convex edge in a left-right opposite mode, the distance between the inner walls of the two clamping pieces is equal to the radial size of the upper convex edge, and the distance between the upper inner convex edge of each clamping piece and the corresponding lower inner convex edge is equal to the sum of the thicknesses of the upper convex edge and the lower convex edge.
3. The pneumatic pump according to claim 2, wherein an outer circumferential side of the engaging member adjacent to the lower side is provided with an outer engaging groove recessed inward in the radial direction, the engaging member further includes an elastic member and a ball, a portion of the ball is disposed in the outer engaging groove and another portion of the ball protrudes from the outer engaging groove, the elastic member is disposed in the outer engaging groove and located between the ball and a bottom wall of the outer engaging groove to push the ball to protrude from the outer engaging groove, an inner side wall of the ferrule opposite to the outer engaging groove is provided with an inner engaging groove recessed outward in the radial direction, and when the ferrule is fitted over the engaging member, the inner engaging groove engages with an outer side of the ball.
4. The pneumatic pump as claimed in claim 3, wherein the upper edge of the ferrule is provided with a support shoulder extending inward in the radial direction, the support shoulder is supported by the upper inward protruding edge when the ferrule is sleeved on the engaging member, and the distance between the bottom wall of the support shoulder and the lower edge of the ferrule in the axial direction is equal to the distance between the top wall of the upper inward protruding edge of the engaging member and the bottom wall of the lower inward protruding edge.
5. The pneumatic pump of claim 1, wherein the ram cylinder assembly further comprises a sealing assembly disposed at an upper end of the ram cylinder and adjacent to the opening, the sealing assembly comprises an upper sealing bushing and a lower sealing bushing, the upper sealing bushing and the lower sealing bushing are both sleeved on the plunger rod and located between an outer peripheral side of the plunger rod and an inner wall of the ram cylinder, and an inner peripheral wall of the lower sealing bushing is provided with a through groove penetrating in an axial direction of the lower sealing bushing and being recessed outward in a radial direction of the lower sealing bushing.
6. The pneumatic pump according to claim 5, wherein the through groove is plural, and the plural through grooves are arranged evenly at intervals in a circumferential direction of an inner wall of the lower seal boss.
7. The pneumatic pump as claimed in claim 5, wherein the upper sealing sleeve includes an upper body, an extension extending outward in a radial direction of a lower edge of the upper body, and an upper shoulder provided at a lower end of the upper body, the lower edge of the upper body is connected to an upper edge of the upper shoulder through the extension, an installation space is formed between an inner wall of the upper shoulder and an outer circumferential wall of the plunger rod, and a sealing ring is provided in the installation space.
8. The pneumatic pump of claim 7, wherein the lower seal bushing includes a lower body and a lower shoulder disposed at an upper end of the lower body, the lower shoulder extending outwardly along a peripheral wall of the lower body, a lower surface of the upper shoulder and an upper surface of the lower body abutting each other to secure the seal ring between an inner wall of the upper shoulder, the upper surface of the lower shoulder and the upper surface of the lower body and the peripheral wall of the plunger rod.
9. A pneumatic pump according to any of claims 1 to 8, wherein the top cover of the upper cylinder is provided with a gland adapted to cooperate with a pressure block of a frame of the pneumatic pump assembly to press the pneumatic pump against the frame.
10. A pneumatic pump assembly, comprising:
a base plate;
the frame is arranged on the bottom plate and comprises a first telescopic pressure rod, a second telescopic pressure rod and a cross beam, wherein the first telescopic pressure rod and the second telescopic pressure rod are arranged at intervals, the cross beam is positioned between the first telescopic pressure rod and the second telescopic pressure rod, and a bolt column extending downwards and a pressing block fastened on the bolt column are arranged in the middle of the cross beam;
a pneumatic pump according to any one of claims 1 to 9, said pressure block being pressed against a gland of said upper cylinder of said pneumatic pump;
the lower cylinder body of the pneumatic pump is connected with the pressure plate;
at least two stands, two at least stand symmetries in first flexible depression bar with between the flexible depression bar of second and every the both ends of stand respectively with the crossbeam with the pressure disk links to each other, wherein, first flexible depression bar with the flexible activity of second is in order to drive along its axial direction the pneumatic pump reciprocates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331866.6A CN111379683A (en) | 2020-04-24 | 2020-04-24 | Pneumatic pump and pneumatic pump assembly with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331866.6A CN111379683A (en) | 2020-04-24 | 2020-04-24 | Pneumatic pump and pneumatic pump assembly with same |
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| Publication Number | Publication Date |
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| CN111379683A true CN111379683A (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010331866.6A Pending CN111379683A (en) | 2020-04-24 | 2020-04-24 | Pneumatic pump and pneumatic pump assembly with same |
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| WO2019143310A1 (en) * | 2018-01-18 | 2019-07-25 | Дмитрий Валерьевич ХАЧАТУРОВ | Double-acting linear electric submersible pump and operating method thereof |
| CN210164587U (en) * | 2019-05-30 | 2020-03-20 | 严新锁 | Double-acting pneumatic plunger pump |
| CN212079540U (en) * | 2020-04-24 | 2020-12-04 | 董建平 | Pneumatic pump and pneumatic pump assembly with same |
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- 2020-04-24 CN CN202010331866.6A patent/CN111379683A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956687A (en) * | 2009-07-21 | 2011-01-26 | 上海神开石油化工装备股份有限公司 | Double-acting piston pneumatic pump |
| CN104747430A (en) * | 2014-11-13 | 2015-07-01 | 三一重型装备有限公司 | Fluid end and emulsion pump |
| CN204532802U (en) * | 2015-01-26 | 2015-08-05 | 中国石油天然气股份有限公司 | Plunger pump connecting clip |
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