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WO2014040567A1 - 易于装配的微型泵 - Google Patents

易于装配的微型泵 Download PDF

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Publication number
WO2014040567A1
WO2014040567A1 PCT/CN2013/083566 CN2013083566W WO2014040567A1 WO 2014040567 A1 WO2014040567 A1 WO 2014040567A1 CN 2013083566 W CN2013083566 W CN 2013083566W WO 2014040567 A1 WO2014040567 A1 WO 2014040567A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust valve
groove
plate
pressure plate
upper cover
Prior art date
Application number
PCT/CN2013/083566
Other languages
English (en)
French (fr)
Inventor
张坤林
Original Assignee
厦门科际精密器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201220474046.3U external-priority patent/CN202789442U/zh
Priority claimed from CN201210344664.0A external-priority patent/CN102926976B/zh
Application filed by 厦门科际精密器材有限公司 filed Critical 厦门科际精密器材有限公司
Publication of WO2014040567A1 publication Critical patent/WO2014040567A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/14Provisions for readily assembling or disassembling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04Pumps having electric drive
    • F04B43/043Micropumps

Definitions

  • the present invention relates to an apparatus for driving and delivering a gas by a motor.
  • a micro-pump driven by a motor and transporting gas in the prior art whose main structure and working principle are as shown in FIG. 1 : comprising: a motor 10, an eccentric 20, a base 30, an umbrella-shaped connecting rod 40, and a rubber
  • the eccentric 20 causes the mushroom link 40 to make an oblique conical motion.
  • the umbrella surface of the mushroom link 40 drives the three pistons of the piston body 50 to alternately perform the stretching and compression movement. For example, as shown in FIG.
  • the first piston 510 of the piston body 50 is stretched, and the chamber of the first piston 510 is The negative pressure is generated such that the umbrella surface of the first exhaust valve plate 810 covers the corresponding first exhaust hole 710 on the air chamber pressure plate 70 while the first intake valve piece 5110 is opened; the gas entering the base 30 from the air inlet 310
  • the first intake port 610 on the cylinder plate 60 enters the enlarged chamber of the first piston 510.
  • the second piston 520 is compressed and the gas pressure in its chamber is increased.
  • the gas closes the corresponding second intake valve piece 5210, closes the second intake hole 6210 on the cylinder plate 60, and causes the umbrella of the second exhaust valve piece 820 to face up, and the gas in the second piston 520 passes through
  • the second exhaust hole 720 below the second exhaust valve piece 820 enters the inner cavity of the upper cover 90 and is then discharged outward from the exhaust pipe 910.
  • the present invention aims to provide a micropump that is easy to assemble, to avoid the phenomenon that an exhaust valve piece is not installed in the assembly process, or even a certain exhaust valve piece is missing.
  • the technical solution of the invention is: an easy-to-assemble micro pump with a motor, a cylindrical base, an eccentric with a slanted socket, a steel needle, an umbrella-shaped connecting rod with a plurality of card holes, and a plurality of cylinders a cylinder plate of a hole, a piston body with a plurality of intake valve plates and a plurality of hollow pistons, a plenum pressure plate with a plurality of vent holes, an upper cover with an exhaust pipe, and a plurality of exhaust valve plates; a connecting portion connects the plurality of exhaust valve sheets into an exhaust valve plate group, wherein a plurality of top corners of the connecting portion are respectively connected to an exhaust valve plate; the exhaust valve plate group is placed on the upper cover and the air chamber pressing plate In the internal space between the exhaust valve sheets, the exhaust valve sheets respectively cover the corresponding exhaust holes on the air chamber pressure plate.
  • a micropump that is easy to assemble in a preferred embodiment, having a motor, a cylindrical base, an eccentric with a slanted socket, a steel needle, an umbrella link with three snap holes, a cylinder with three cylinder bores Plate, piston body with three intake valve plates and three hollow pistons, air chamber pressure plate with three vents, upper cover with exhaust pipe and three exhaust valve plates; one connection will
  • the three exhaust valve pieces are connected into an exhaust valve plate group, the connecting portion has a triangular flat piece or three star-shaped pattern protrusions, and three corners of the connecting portion are respectively connected with an exhaust valve piece;
  • the exhaust valve The sheet set is placed in the inner space between the upper cover and the air chamber pressure plate, and the three exhaust valve sheets in the exhaust valve sheet group respectively cover corresponding exhaust holes on the air chamber pressure plate.
  • the exhaust valve plate group Since the three exhaust valve pieces are connected into the exhaust valve plate group by a triangular flat plate connection portion or three star light pattern connection portions; the exhaust valve plate group is integrally placed on the upper cover and the air chamber pressure plate at one time; In the internal space, the three exhaust valve plates in the exhaust valve plate group respectively cover the corresponding exhaust holes on the air chamber pressure plate, thereby avoiding the installation of an exhaust valve plate in the assembly process, and even Leakage of a certain exhaust valve.
  • the connecting portion of the exhaust valve plate group is a three-star-shaped projection, and the three lower ends of the free ends of the connecting portions are connected to a disc-shaped exhaust valve piece.
  • the center of the upper end surface of the plenum pressure plate is provided with a triangular central groove, and the three apex angles of the central groove are respectively provided with circular grooves around the corresponding vent holes; the three circular grooves and the like Deeply integrated with the central groove;
  • the lower end surface of the upper cover is provided with a flat bottom groove, and the inner bottom hole of the flat bottom groove surrounds the inner hole of the exhaust pipe to retain a large ring platform and a small a ring platform;
  • the connecting portion of the exhaust valve plate group is placed in a central recess of the air chamber pressure plate;
  • the three exhaust valve plates of the exhaust valve plate group respectively fall on a corresponding circle of the air chamber pressure plate Forming a corresponding venting hole in the groove;
  • the connecting portion not only functions to connect the three exhaust valve sheets, but also is easily fixed in the inner space between the upper cover and the air chamber pressure plate.
  • the three exhaust valve pieces of the exhaust valve plate group correctly cover the corresponding exhaust holes, and the connecting portion of the large ring platform on the upper cover and the exhaust valve plate group form a centering positioning relationship, which can be directly used.
  • the small ring platform on the cover and the central groove of the air chamber pressure plate form a correct clamping and fixing connection to the connection portion of the exhaust valve plate group, so the exhaust valve plate group and its corresponding air chamber pressure plate and upper cover adopt the above structure And connection relationship, easy to assemble. Helps increase the speed and efficiency of assembly.
  • the three circular grooves corresponding to the plenum pressure plate in the flat bottom groove of the lower end of the upper cover retain three C-shaped platforms respectively connecting the large ring platform from the outside, the three C
  • the inside of the shaped platform is respectively provided with a two-stage C-shaped platform which is lower than the lower end surface of the upper cover and has a reinforcing rib on the outer circumference, and a three-stage C-shaped platform which is lower, smaller and has a reinforcing rib on the outer circumference.
  • the nested three-stage C-shaped platform can dampen the airflow discharged between the lower vent hole and the exhaust valve plate, thereby suppressing high frequency jitter of the exhaust valve plate and preventing high frequency noise.
  • the auxiliary positioning manner of the air chamber pressure plate and the exhaust valve plate group is: a centrally extending card strip is arranged in the middle of the three sides of the central groove of the end surface of the air chamber pressure plate, and the three card strips are stuck to the exhaust The connection of the valve plate group.
  • the three strips of the air chamber pressure plate during assembly serve to center and angularly position the connection portion of the exhaust valve sheet group, and can directly cover the three exhaust valve sheets of the exhaust valve sheet group to correctly cover the corresponding exhaust holes. Helps increase the speed and efficiency of assembly.
  • the bottom of the connecting portion of the exhaust valve plate group is a triangular flat piece whose inwardly concave side line is formed; the exhaust valve piece group connecting portion is at the top of each of the three free ends of the protruding portion of the protruding portion a positioning hole is provided; a lower end flat bottom groove of the upper cover is uniformly distributed from the outer side of the large annular platform to the inner side of the small ring platform; three small radial ridges; a plurality of lower locating holes corresponding to the venting valve plate group on the end surface are respectively provided with a lower protruding post; three lower ribs on the large annular platform of the lower surface of the upper cover are respectively engaged in a concave portion of the plenum pressure plate Three sides of the groove and the corresponding sides of the connecting portion of the exhaust valve plate group; three lower protruding columns on the small ring platform of the lower surface of the upper cover are respectively inserted into the exhaust valve plate group The center of the connecting portion is con
  • the exhaust valve disc group has a triangular flat plate type rib which is concave inward of the side line.
  • the rib can increase the ability of each exhaust valve piece to recover from the turned-up state to cover the corresponding vent hole on the plenum pressure plate, which is beneficial to improve product stability and service life.
  • the exhaust valve disc group and its corresponding air chamber pressure plate and upper cover adopt the above structure, and the newly added three radial lower convex strips provide guiding and centering limit for the connection of the upper cover and the air chamber pressure plate.
  • the three radial lower ribs act as a centering position for the exhaust valve spool connection.
  • the three new positioning holes and three lower studs allow the exhaust valve disc set to be attached to the upper cover and then attached to the central recess of the air chamber pressure plate along with the upper cover. Convenient for assembly. Helps increase the speed and efficiency of assembly.
  • the connecting portion of the exhaust valve plate group is a triangular flat piece whose side line is concave inward, and the bottom of the exhaust valve piece is rounded at three corners of the connecting portion.
  • a sheet, and the upper end of the wafer is provided with an upwardly extending bellows.
  • a central groove of a triangular shape with an inwardly concave side line is disposed in a middle portion of the upper end surface of the plenum pressure plate, and a circular groove is formed around each of the three vent holes on the three apex angles of the central groove.
  • the diameters of the three circular grooves are larger than the diameter of the bottom wafer of the exhaust valve piece in the exhaust valve plate group and the depth is slightly larger than the depth of the central groove; the lower end surface of the upper cover is provided with a communication a flat bottom groove of the exhaust pipe; a connecting portion of the exhaust valve plate group is placed in a central groove of the air chamber pressure plate, the central groove is sleeved around the connecting portion; the exhaust valve plate group The discs at the bottom of the three exhaust valve plates respectively fall in corresponding circular grooves of the plenum pressure plate to cover corresponding vent holes; the upper cover is fastened to the plenum pressure plate, The lower end surface of the upper cover is tightly connected to the end surface of the air chamber pressure plate, and the flat bottom groove of the lower end of the upper cover and the central groove of the upper end of the air chamber plate and three circular grooves are enclosed in the same internal space.
  • the upper ends of the bellows of the three exhaust valve plates of the exhaust valve plate group are respectively placed on the bottom surface of the flat bottom
  • the exhaust valve disc group utilizes the strong elastic force of the bellows in the exhaust valve plate to counteract the high-frequency vibration that may be generated by the bottom disc under the gas pressure of the exhaust hole, from the working mechanism.
  • the noise generated by the high-frequency vibration of the exhaust valve plate is eliminated, thereby reducing the operating noise of the whole machine.
  • the triangular flat ribs with the inwardly concave side of the connecting portion can increase the ability of the bottom disc of each exhaust valve piece to recover from the raised state to cover the corresponding venting hole on the plenum pressure plate, which is beneficial to improve product stability. Sex and service life.
  • the bottoms of the three exhaust valve sheets of the exhaust valve plate group are all wafers, and the upper end of the wafer extends upwardly out of the bellows;
  • the central portion is a triangular flat-plate connecting portion of the three sides respectively circumscribing the adjacent exhaust valve sheets;
  • the upper end surface of the plenum pressure plate is provided with a circular groove around each of the three venting holes.
  • the diameters of the three circular grooves are larger than the diameter of the bottom wafer of the exhaust valve plate in the exhaust valve plate group; the middle portion of the upper end surface of the gas chamber pressure plate is provided with three sides respectively adjacent to adjacent circular grooves a central groove of the triangular shape, wherein the three top corners of the central groove each communicate with a circular groove; the lower end surface of the upper cover is provided with a flat bottom groove communicating with the exhaust pipe; a connecting portion of the valve plate group is placed in a central recess of the air chamber pressure plate, the central recess is sleeved around the connecting portion; the discs at the bottom of the three exhaust valve sheets of the exhaust valve disc group respectively fall a corresponding circular vent in the corresponding circular groove of the plenum pressure plate; a flat bottom groove at the lower end of the upper cover and The central groove of the upper end of the air chamber pressure plate and the three circular grooves are enclosed in the same internal space; the upper ends of the bellows of the three exhaust valve plates of the exhaust valve plate group are respectively placed
  • the bellows in the exhaust valve sheets of the present exhaust valve sheet have the same function, but the triangular flat-plate type reinforcing ribs of the connecting portion are enlarged, and each row can be further improved.
  • the ability of the bottom disc of the valve plate to recover from the raised state to cover the corresponding venting hole on the plenum pressure plate is beneficial to improve the stability and service life of the product.
  • the upper end surface of the plenum pressure plate is provided with a C-shaped boss which is smoothly connected with the circular groove at each circular groove, and the openings of the three C-shaped bosses Both are disposed toward the center of the center recess; the three C-shaped bosses of the plenum plate extend into the flat bottom recess of the lower end of the upper cover.
  • the three C-shaped bosses can guide the three exhaust valve plates of the exhaust valve block during assembly, which is beneficial to improve the assembly speed and efficiency; the three C-shaped bosses are aligned in the product running state.
  • the lifting and lowering movements of the three exhaust valve plates of the gas valve plate group play a role of limiting the position, so that the action of the exhaust valve piece is more stable.
  • the micropump which is easy to assemble according to the invention connects three exhaust valve pieces into an exhaust valve piece group by using a connecting portion, and the exhaust valve piece group is integrally installed at one time, thereby solving the installation of an exhaust valve piece in the assembly process. Not in place, even missing the problem of a certain exhaust valve. Further, the structure of the surface of the gas chamber platen and the structure of the concave portion in the lower end surface of the upper cover are improved to facilitate assembly.
  • the micropump has a simple additional structure, low additional cost, and is easy to implement, but can increase the assembly speed. Therefore, the micropump which is easy to assemble according to the present invention has a good promotion potential.
  • Figure 1 is a schematic diagram of the working principle of the existing micropump.
  • FIG. 2 is a schematic exploded view of Embodiment 1 of the present invention.
  • Fig. 3 is a top plan view showing the piston body of the embodiment 1 of Fig. 2.
  • Figure 4 is a schematic view showing the structure of the A-A section of Figure 3.
  • Fig. 5 is a top plan view showing the cylinder plate of the embodiment 1 of Fig. 2.
  • Figure 6 is a schematic view showing the structure of the section B-B of Figure 5.
  • Fig. 7 is a top plan view showing the gas chamber pressure plate of the embodiment 1 of Fig. 2.
  • Figure 8 is a schematic view showing the structure of the C-C section of Figure 7.
  • Figure 9 is a bottom plan view showing the plenum pressure plate of the embodiment 1 of Figure 2;
  • Fig. 10 is a top plan view showing the exhaust valve piece of the embodiment 1 of Fig. 2.
  • Figure 11 is a bottom plan view showing the upper cover of the embodiment 1 of Figure 2;
  • Figure 12 is a schematic view showing the structure of the D-D section of Figure 11.
  • Figure 13 is a front view showing the structure of the embodiment 1 of Figure 2;
  • Figure 14 is a top plan view of the embodiment of Figure 2.
  • Figure 15 is a cross-sectional view showing the structure of the line E-E in Figure 14;
  • Figure 16 is a top plan view showing a gas chamber pressure plate in Embodiment 2 of the present invention.
  • Figure 17 is a top plan view showing the exhaust valve plate group in Embodiment 2 of the present invention.
  • Figure 18 is a bottom plan view showing the upper cover of the second embodiment of the present invention.
  • Figure 19 is a cross-sectional structural view showing the assembly of a 2-chamber pressure plate, an exhaust valve plate group and an upper cover in the embodiment of the present invention.
  • Figure 20 is a top plan view showing a gas chamber pressure plate in Embodiment 3 of the present invention.
  • Figure 21 is a top plan view showing the exhaust valve plate group in Embodiment 3 of the present invention.
  • Figure 22 is a bottom plan view showing the upper cover of the embodiment 3 of the present invention.
  • Figure 23 is a cross-sectional structural view showing the assembly of the gas chamber pressure plate, the exhaust valve plate group and the upper cover in the third embodiment of the present invention.
  • Figure 24 is a top plan view showing a gas chamber pressure plate in Embodiment 4 of the present invention.
  • Figure 25 is a top plan view showing the exhaust valve plate group in Embodiment 4 of the present invention.
  • Figure 26 is a bottom plan view showing the upper cover of the embodiment 4 of the present invention.
  • Figure 27 is a cross-sectional structural view showing the assembly of the plenum pressure plate, the exhaust valve plate group and the upper cover in the fourth embodiment of the present invention.
  • Example 1 The micropump of the present invention which is easy to assemble, please refer to Fig. 2-15.
  • the easy-to-assemble micropump has a motor 1, an eccentric 2, a base 3, a steel needle 44, a ball 45, an umbrella link 4, a piston body 5, a cylinder plate 6, a plenum pressure plate 7, an exhaust valve plate group 8, and Upper cover 9.
  • a piston body 5 made of rubber, which is provided with three downwardly extending hollow pistons 51, 52, 53 and three intake valve plates 511, 521, 531, three pistons 51, 52, The lower ends of the 53 are respectively provided with engaging portions 512, 522, and 532 extending downward.
  • the three pistons 51, 52, 53 of the cylinder plate 6 corresponding to the piston body 5 are provided with three corresponding cylinder bores 61, 62, 63.
  • the upper surface of the cylinder plate 6 corresponding to the three intake valve pieces 511, 521, 531 of the piston body 5 is provided with three corresponding intake grooves 611, 621, 631; the outer ends of the three intake grooves 611, 621, 631 It extends to the outer peripheral surface of the cylinder plate 6 and communicates with the atmosphere.
  • a lower portion of the cylinder plate 6 opens a seating cavity 64.
  • Three pistons 51, 52, 53 corresponding to the piston body 5 on the chamber pressure plate 7 are provided with three corresponding exhaust holes 71, 72, 73.
  • a triangular central recess 701 is provided in the center of the upper end surface of the plenum platen 7.
  • a circular first groove 705 is provided around the first exhaust hole 71 at three apex angles of the upper end surface central groove 701 of the plenum pressure plate 7, and a circular second is provided around the second vent hole 72.
  • a groove 706; a circular third groove 707 is provided around the third exhaust hole 73.
  • the three circular grooves 705, 706, 707 are the same size and are integrally connected to the central groove 701 at equal depth; three centrally extending strips are respectively disposed in the middle of the three sides of the central groove 701. 703, 703, 704.
  • Three pistons 51, 52, 53 corresponding to the piston body 5 and three intake valve plates 511, 521, 531 on the lower end surface of the chamber pressure plate 7 are respectively provided with three corresponding intake guide grooves 741, 742, 743.
  • the exhaust valve plate group 8 is made of rubber, and its central portion is a three-star-like convex connecting portion 84, and the upper sides of the upper portions of the three rib free ends 841, 842, and 843 of the connecting portion 84 are respectively opened. Steps, the lower sides of the three ridges free ends 841, 842, and 843 of the connecting portion 84 are respectively provided with disc-shaped exhaust valve pieces 81, 82, 83.
  • the main body of the upper cover 9 is a disk with three relocation slots on the outer circumference, and an exhaust pipe 91 extending upward is disposed in the center of the main body.
  • the inner hole of the exhaust pipe 91 penetrates from the bottom surface of the main body to The upper end of the exhaust pipe 91.
  • the lower end surface 90 of the main body is provided with a flat bottom groove 901 corresponding to the outer contour of the main body, and the lower end surface 90 of the main body is provided with a seal groove 902 having the same contour on the outer side of the flat bottom groove 901.
  • a large annular land 903 and a small ring platform 904 are retained in the lower end surface 90 of the body surrounding the inner bore of the exhaust pipe 91 inside the flat bottom groove 901.
  • the three circular grooves 705, 706, 707 of the lower end surface 90 of the body corresponding to the plenum plate 7 retain three C-shaped platforms 905, 906, 907 which are respectively connected to the large ring platform 903 from the outside.
  • the three C-shaped platforms 905, 906, 907 are respectively provided with two-stage C-shaped platforms 9051, 9061, 9071 which are lower than the lower end surface 90 of the main body and have reinforcing ribs on the outer circumference, and are lower, smaller and peripherally provided.
  • the motor 1 is mounted at the lower end of the cylindrical base 3 and is held together by two screws 12.
  • the eccentric 2 and the mushroom link 4 are provided in the base 3.
  • the eccentric 2 is mounted on the main shaft 11 of the motor 1.
  • a steel needle 44 and a ball 45 are mounted in the oblique insertion hole in which the upper portion of the eccentric 2 is inclined inward.
  • the lower end surface of the steel pin 44 bears against the ball 45 at the bottom of the oblique insertion hole, and the upper end of the steel needle 44 protrudes beyond the oblique insertion hole and is fixedly coupled to the main shaft of the mushroom link 4.
  • the cylinder plate 6 is mounted at the upper end of the base 3.
  • the flat plate portion of the piston body 5 is stacked on the upper surface of the cylinder plate 6, and the three pistons 51, 52, 53 of the piston body 5 are inserted into the three cylinder bores 61, 62, 63 of the cylinder plate 6, respectively.
  • the three engaging portions 512, 522, and 532 of the piston body 5 are respectively engaged in the three card holes on the umbrella surface of the mushroom link 4.
  • the chamber pressure plate 7 covers the upper surface of the flat plate portion of the piston body 5, and closes the chambers of the three pistons 51, 52, 53 of the piston body 5.
  • the three exhaust holes 71, 72, 73 on the chamber pressure plate 7 are respectively opposed to the centers of the chambers of the three pistons 51, 52, 53 on the piston body 5.
  • the first intake air guiding groove 741 of the lower surface of the air chamber pressure plate 7 provides a passage for the first piston 51 of the piston body 5 and the first intake valve piece 511, so that when the first intake valve piece 511 is opened, the external gas can be A corresponding first intake groove 611 on the cylinder plate 6 enters the chamber of the first piston 51.
  • the second intake guide groove 742 on the lower surface of the plenum pressure plate 7 provides a passage for the second piston 52 and the second intake valve piece 521 of the piston body 5.
  • the third intake 53 and the third intake valve piece 531 of the piston body 5 of the third intake guide groove 743 of the lower surface of the chamber pressure plate 7 provide passage.
  • the connecting portion 84 of the vent valve plate group 8 is placed in the central recess 701 of the plenum platen 7, and the three strips 702, 703, 704 around the central recess 701 catch the connecting portion 84 so that they cannot rotate and mobile.
  • the three exhaust valve plates 81, 82, 83 of the exhaust valve plate group 8 respectively fall into the three circular grooves 705, 706, 707 of the air chamber pressure plate 7, and cover the three exhaust holes 71, 72. Corresponding vents in 73.
  • the upper cover 9 is fastened to the air chamber pressure plate 7, and the sealing ring placed in the sealing ring groove 902 on the lower end surface of the main body of the upper cover 9 is the flat bottom groove 901 on the lower end surface 90 of the upper cover 9 and the upper end surface of the air chamber pressure plate 7.
  • the three circular grooves 705, 706, 707 are enclosed in the same internal space.
  • the inner side wall of the large ring platform 903 on the lower end surface 90 of the main body of the upper cover 9 just accommodates the connecting portion 84 of the exhaust valve plate group 8, and the small ring platform 904 presses down the connecting portion 84 of the exhaust valve plate group 8.
  • the exhaust valve plate group 8 has only three exhaust valve plates 81, 82, 83 which can be turned upside down in the three C-shaped platforms 905, 906, 907 of the upper cover 9, respectively, corresponding to the lower side of the C-shaped platform.
  • the eccentric 2 causes the mushroom link 4 to make an oblique conical movement.
  • the canopy of the mushroom link 4 drives the three pistons 51, 52, 53 of the piston body 5 to alternately perform the stretching and compressing motion.
  • the third piston 53 of the piston body 5 is stretched, and the third The chamber of the piston 53 generates a negative pressure to cause the third exhaust valve piece 83 in the exhaust valve valve group 8 to cover the third exhaust hole 73 on the air chamber pressure plate 7, while opening the third intake valve piece 531;
  • the gas enters the enlarged chamber of the third piston 53 via the third intake groove 631 on the cylinder plate 6 and the third intake guide groove 743 on the plenum platen 7.
  • the first piston 51 is compressed and the gas pressure in its chamber is increased.
  • the gas closes the first intake valve piece 511, closes the first intake groove 611 on the cylinder plate 6, and causes the first exhaust valve piece 81 of the exhaust valve plate group 8 to be turned up, in the first piston 51.
  • the pressure gas passes through the first exhaust hole 71 below the first exhaust valve piece 81 along the circular first groove 705 of the plenum platen 7, the central groove 701, and the flat bottom groove 901 of the upper cover 9, the exhaust pipe 91 emissions to the outside.
  • Embodiment 2 Another embodiment of the micropump that is easy to assemble according to the present invention, as in the previous embodiment, has a motor 1, an eccentric 2, a base 3, a steel needle 44, a ball 45, an umbrella link 4, a piston body 5, and a cylinder Plate 6, for their structure and connection relationship will not be described.
  • the plenum pressure plate 7', the vent valve plate group 8' and the upper cover 9' in this embodiment are the same. The structure and connection relationship are different from the previous embodiment.
  • three pistons 51, 52, 53 corresponding to the piston body 5 on the plenum plate 7' are provided with three corresponding venting holes 71', 72', 73'.
  • three exhaust holes 71', 72', 73' are provided with a triangular central groove 701', and three rows are arranged around the three top corners of the central groove 701'.
  • the air holes 71', 72', 73' are respectively provided with circular grooves 705', 706', 707'.
  • the three circular grooves 705', 706', 707' are the same size and center groove 701' Equally integrated into a whole.
  • the three pistons 51, 52, 53 corresponding to the piston body 5 and the three intake valve plates 511, 521, 531 on the lower end surface of the chamber pressure plate 7' are respectively provided with three corresponding intake guide grooves.
  • the exhaust valve disc group 8' is made of rubber, and its central portion is a triangular flat plate type connecting portion 840' whose inner side is concave inward, and the three top corners of the connecting portion 840' are respectively provided.
  • the protrusion 84' the upper sides of the upper portions of the three rib free ends 841', 842', 843' are respectively stepped, and corresponding positions are respectively arranged at the tops of the three rib free ends 841, 842, 843 Holes 8411', 8421', 8431'.
  • the main body of the upper cover 9' is a disk having three outer slots on the outer circumference.
  • the center of the main body is provided with an upwardly extending exhaust pipe 91'.
  • the inner hole of the exhaust pipe 91' is from the bottom surface of the main body. It runs through to the upper end of the exhaust pipe 91'.
  • the lower end surface 90' of the main body is provided with a flat bottom groove 901' corresponding to the outer contour of the main body, and the lower end surface 90' of the main body is provided with an annular rib having the same contour on the outer side of the flat bottom groove 901'. 902'.
  • a large annular land 903' and a small circular ring platform 904' are retained in the lower end surface 90' of the main body in the inner hole surrounding the exhaust pipe 91' inside the flat bottom groove 901'.
  • the three circular grooves 705', 706', 707' corresponding to the plenum plate 7' on the lower end surface of the body retain three C-shaped platforms 905', 906 which respectively connect the large ring platform 903' from the outside. ', 907'.
  • Radial lower ribs 9031' are respectively disposed from the outer side of the large ring platform 903' to the inner side of the small ring platform 904' at the intersection of the three C-shaped platforms 905', 906', 907'.
  • three C-shaped platforms 905', 906', 907' are respectively provided with lower bosses 9041'.
  • two C-shaped platforms 9051', 9052', 9061' are provided inside the three C-shaped platforms 905', 906', 907', respectively, which are lower than the lower end surface 90' of the main body and have reinforcing ribs on the outer circumference, and
  • the chamber pressure plate 7' covers the upper surface of the flat plate portion of the piston body 5, and closes the chambers of the three pistons 51, 52, 53 of the piston body 5.
  • the three vent holes 71' on the plenum plate 7' are respectively opposed to the center of the chamber of the piston body 5 corresponding to the piston.
  • the three intake guide grooves on the lower surface of the chamber pressure plate 7' provide passages for the corresponding pistons of the piston body 5 and the corresponding intake valve sheets, respectively.
  • the connecting portion 840' of the vent valve plate group 8' is placed in the center groove 701' of the plenum plate 7'.
  • the three exhaust valve plates 81', 82', 83' of the exhaust valve plate group 8' respectively fall correspondingly in the three circular grooves 705', 706', 707' of the air chamber pressure plate 7', covering Corresponding exhaust holes in the exhaust holes 71', 72', 73.
  • the upper cover 9' is fastened to the air chamber pressure plate 7', and the large circular platform 903' on the upper cover 9' encloses three starlight patterns in the center of the connection portion 840' of the exhaust valve plate group 8'.
  • the protrusion 84', the three lower ribs 9031' on the large ring platform 903' are respectively caught on the three sides of the central groove 701' of the plenum plate 7' and against the exhaust valve plate group 8' The corresponding side of the connecting portion 840'.
  • the exhaust valve flap 8' is prevented from rotating and moving.
  • the small ring platform 904' on the upper cover 9' is pressed on the three ridge free ends 841', 842', 843' of the central protrusion 84' of the venting valve set 8' connecting portion 840', and the upper cover 9'
  • the three lower protrusions 9041' on the small ring platform 904' are respectively inserted in the central portion 84' of the exhaust valve plate group 8' connecting portion 840', the corresponding convex portions 841', 842', 843'
  • the annular rib 902' on the lower end surface 90' of the upper cover 9' is placed on the upper end surface of the plenum plate 7', and the groove 901' on the lower end surface 90' of the upper cover 9' and the plenum plate 7' are placed on the upper cover 9'.
  • the central groove 701' of the end face and the three circular grooves 705', 706', 707' are enclosed in the same internal space. Since the inner side wall of the large ring platform 903' on the lower end surface of the main body of the upper cover 9' just accommodates the protrusion 84' in the center of the connecting portion 840' of the exhaust valve piece group 8', the small ring platform 904' is pressed downward.
  • the connecting portion 840' of the exhaust valve plate group 8' has a central projection 84' of three ridges free ends 841', 842', 843', so that the exhaust valve plate group 8' has only three exhaust valve plates 81', 82', 83' can be flipped up under the C-shaped platform in the three C-shaped platforms 905', 906', 907' of the upper cover 9'.
  • the eccentric 2 causes the mushroom link 4 to make an oblique conical movement.
  • the canopy of the mushroom link 4 drives the three pistons 51, 52, 53 of the piston body 5 to alternately perform the stretching and compressing motion.
  • the third piston 53 of the piston body 5 is stretched, and the chamber of the third piston 53 generates a negative pressure so that the third exhaust valve piece 83' in the exhaust valve valve group 8' covers the plenum pressure plate 7'.
  • the third exhaust hole 73' simultaneously opens the third intake valve piece; the external gas enters the third piston 53 through the third intake groove on the cylinder plate 6 and the third intake guide groove on the plenum plate 7' Pull up the large chamber.
  • the first piston 51 is compressed and the gas pressure in its chamber is increased.
  • the gas closes the first intake valve plate, closes the first intake groove on the cylinder plate 6, and flips the first exhaust valve piece 81' of the exhaust valve plate group 8' upward, in the first piston 51
  • the pressure gas passes through the first exhaust hole 71' below the first exhaust valve piece 81' along the first groove 705' of the plenum platen 7 and the groove 901' of the upper cover 9', the exhaust pipe 91' outward emission.
  • Embodiment 3 another embodiment of the micropump that is easy to assemble according to the present invention, as in the first embodiment, has a motor 1, an eccentric 2, a base 3, a steel needle 44, a ball 45, an umbrella link 4, a piston body 5, and
  • the cylinder plates 6 will not be described for their structure and connection relationship.
  • the plenum pressure plate 7", the exhaust valve plate group 8" and the upper cover 9" in this embodiment The structure and connection relationship are different from the first embodiment.
  • the three pistons 51, 52, 53 of the corresponding piston body 5 on the plenum plate 7" are provided with three corresponding venting holes 71", 72", 73".
  • three exhaust holes 71", 72", 73" are correspondingly a central recess 701" having a triangular inwardly concave edge, surrounding three venting holes 71", 72", 73" at three apex angles of the central recess 701"
  • the three C-shaped bosses 705", 706", 707" are the same size and the openings are respectively arranged centripetally, three circular grooves 711", 721", 731" The same size and depth is slightly larger than the depth of the central groove 701".
  • the lower end faces of the plenum plate 7" correspond to the three pistons 51, 52, 53 of the piston body 5 and the three intake valve plates 511, 521, 531 respectively There are three corresponding intake guide slots.
  • the exhaust valve disc group 8" is made of rubber, and its central portion is a triangular flat-plate connecting portion 84" in which the side line is concave inward, and the three top corners of the connecting portion 84" are respectively set.
  • the diameters of the circular grooves 711", 721", 731"; the bellows extend outwardly at the upper ends of each of the wafers, respectively.
  • the main body of the upper cover 9" is a disk having three outer slots on the outer circumference, and the center of the main body is provided with an upwardly extending exhaust pipe 91", and the inner hole of the exhaust pipe 91" is from the main body.
  • the lower end surface 90" extends through the upper end of the exhaust pipe 91".
  • the lower end surface 90" of the main body is provided with a flat bottom groove 901" corresponding to the outer contour of the main body, and the lower end surface 90" of the main body is The outer side of the recess 901" is provided with an annular rib 902" of the same contour.
  • Three exhaust holes 71", 72", 73" corresponding to the air chamber pressure plate 7" at the bottom of the flat bottom groove 901""
  • the connecting portion 84" of the exhaust valve plate group 8" is placed in the center groove 701" of the air chamber pressure plate 7", and the center groove 701" covers the connecting portion 84" so that it cannot rotate and mobile.
  • the wafers at the bottom of the three exhaust valve plates 81", 82", 83" of the exhaust valve plate group 8" respectively fall correspondingly to the three circular grooves 705", 706", 707 of the gas chamber pressure plate 7" In the middle, the corresponding exhaust holes of the three exhaust holes 71", 72", 73" are covered.
  • the upper cover 9" is fastened to the air chamber pressure plate 7", and the annular rib 902" on the lower end surface 90" of the upper cover 9" body is tightly connected with the upper end surface of the air chamber pressure plate 7", and the lower end surface of the upper cover 9” body is closed.
  • the groove 901" on the 90" and the center groove 701" of the upper end surface of the plenum plate 7" and the three circular grooves 711", 721", 731" are enclosed in the same internal space.
  • the three C-shaped bosses 705", 706", 707" of the chamber pressure plate 7" are respectively inserted into the flat bottom grooves 901" at the lower end of the upper cover 9".
  • the upper ends of the bellows of the three exhaust valve plates 81", 82", 83" of the exhaust valve plate group 8" respectively respectively cover the three short bosses 905" in the flat bottom groove 901" of the upper cover 9", 906", 907" is placed on the bottom surface of the flat bottom groove 901".
  • the exhaust pipe 91" of the upper cover 9" communicates with the center groove 701" of the plenum plate 7" and the three C-shaped bosses 705", 706", 707" via the flat bottom groove 901".
  • the eccentric 2 causes the mushroom link 4 to make an oblique conical movement.
  • the canopy of the mushroom link 4 drives the three pistons 51, 52, 53 of the piston body 5 to alternately perform the stretching and compression movement, for example, the third exhaust valve piece 83" in the exhaust valve plate group 8" due to The elastic force of the bellows, the wafer at the bottom thereof always covers the third exhaust hole 73" on the air chamber pressure plate 7", and when the third piston 53 of the piston body 5 is stretched, the chamber of the third piston 53 is generated.
  • the negative pressure causes the third intake valve piece 531 to open; the external gas enters the enlarged chamber of the third piston 53 via the third intake groove 631 on the cylinder plate 6 and the third intake guide groove on the plenum plate 7" At the same time, the first piston 51 is compressed, and the gas pressure in its chamber is increased. The gas closes the first intake valve piece 511, closes the first intake groove 611 on the cylinder plate 6, and causes the discharge.
  • the bellows of the first exhaust valve piece 81" of the gas valve sheet group 8" is compressed and the bottom wafer is moved upward, and the pressure gas in the first piston 51 passes through the first exhaust hole below the first exhaust valve piece 81" 71" a gap between the inner wall of the first C-shaped boss 705" along the plenum platen 7" and the outer circumference of the first exhaust valve piece 81", the center groove 701" and the upper cover 9"
  • the groove 901" and the exhaust pipe 91" are discharged outward.
  • the wafer at the bottom of the three exhaust valve plates 81", 82", 83" on the exhaust valve plate group 8" may be flush with the connecting portion 84", and the three circular grooves on the gas chamber pressure plate 7" 711", 721", 731" also with the central groove 701" on the plenum plate 7" Flush.
  • Embodiment 4 a fourth embodiment of a micropump that is easy to assemble, as in the first embodiment, has a motor 1, an eccentric 2, a base 3, a steel needle 44, a ball 45, an umbrella link 4, a piston body 5, and
  • the cylinder plates 6 will not be described for their structure and connection relationship.
  • the plenum pressure plate 7"', the vent valve plate group 8"' and the upper cover 9"' in this embodiment The structure and connection relationship are different from the first embodiment.
  • the three pistons 51, 52, 53 corresponding to the piston body 5 on the plenum plate 7"' are provided with three corresponding vent holes 71"', 72"', 73"'.
  • a circular recess 711"' and a C-shaped boss 705"' smoothly connected to the circular recess 711"' surround the vent hole 72"'
  • a circular groove 721"' and a C-shaped boss 706"' smoothly connected to the circular groove 721"' are provided, and a circular groove 731"' and a circular concave are provided around the vent hole 73"'.
  • the slots 731"' are smoothly connected C-shaped bosses 707"', the three C-shaped bosses 705"', 706"', 707”' are the same size and the openings are respectively arranged centripetally.
  • the central portion of the upper end surface of the plenum pressure plate 7"' is provided with three triangular central recesses 701"' respectively circumscribing adjacent circular grooves, and the three apex angles of the central recess 701"' are each connected to a circular recess. a groove; three circular grooves 711"', 721"', 731"' having the same size and a depth slightly larger than the depth of the central groove 701"'.
  • the lower end surface of the plenum plate 7"' corresponds to the piston body 5
  • the three pistons 51, 52, 53 and the three intake valve plates 511, 521, 531 are respectively provided with three corresponding intake guide grooves.
  • the exhaust valve disc group 8"' is made of rubber, and the bottoms of its three exhaust valve plates 81"', 82"', 83"' are all round discs, and the diameter of the disc is slightly Less than the diameter of the three circular grooves 711"', 721"', 731"' on the air chamber pressure plate 7"'; the upper end of the wafer extends upwardly out of the bellows; the central portion of the exhaust valve plate group 8"' It is a triangular flat-plate type connecting portion 84"' in which three sides are respectively connected to adjacent exhaust valve sheets.
  • the main body of the upper cover 9"' is a disc having three repositioning grooves on the outer circumference, and the center of the main body is provided with an upwardly extending exhaust pipe 91"', and an inner hole of the exhaust pipe 91"'
  • the lower end surface 90"' of the main body extends through to the upper end of the exhaust pipe 91"'.
  • the lower end surface 90"' of the main body is provided with a flat bottom groove 901"' corresponding to the outer contour of the main body, the main body
  • the lower end surface 90"' is provided with an annular rib 902"' having the same contour on the outer side of the recess 901"'.
  • the connecting portion 84"' of the exhaust valve spool 8"' is placed in the central recess 701"' of the plenum plate 7"', and the central recess 701"' covers the connecting portion 84"' So that it cannot be rotated and moved.
  • the wafers at the bottom of the three exhaust valve plates 81"', 82"', 83"' of the exhaust valve plate group 8"' fall on the plenum pressure plate 7"' respectively In the corresponding circular groove, the corresponding vent hole is covered.
  • the upper cover 9"' is fastened to the air chamber pressure plate 7"', and the annular rib 902"' on the lower end surface 90"' of the upper cover 9"' is tightly connected to the upper end surface of the air chamber pressure plate 7"'.
  • the recess 901"' on the lower end surface 90"' of the cover 9"' and the central recess 701"' of the upper end surface of the plenum plate 7"' and the three circular recesses 711"', 721"', 731”' Closed in the same internal space.
  • Three C-shaped bosses 705"', 706"', 707"' of the chamber pressure plate 7"' are inserted into the flat bottom grooves 901"' at the lower end of the upper cover 9"', respectively.
  • the upper ends of the bellows of the three exhaust valve plates 81"', 82"', 83"' of the exhaust valve plate group 8"' respectively cover the corresponding short convexs in the flat bottom groove 901"' of the upper cover 9"'
  • the table is topped on the bottom surface of the flat bottom groove 901"'.
  • the exhaust pipe 91"' of the upper cover 9"' passes through the flat bottom groove 901"' and the central groove 701"' of the plenum plate 7"' and three The C-shaped bosses 705"', 706"', 707"' are in communication.
  • the eccentric 2 causes the mushroom link 4 to make an oblique conical movement.
  • the canopy of the mushroom link 4 drives the three pistons 51, 52, 53 of the piston body 5 to alternately perform the stretching and compression movement, for example, the third exhaust valve piece 83 in the exhaust valve plate group 8"' 'Because of the elastic force of the bellows, the wafer at the bottom thereof always covers the third exhaust hole 73"' on the air chamber pressure plate 7"', and when the third piston 53 of the piston body 5 is stretched, the third piston 53
  • the chamber generates a negative pressure to open the third intake valve piece 531; the external gas enters the third piston 53 via the third intake groove 631 on the cylinder plate 6 and the third intake guide groove on the plenum plate 7"'
  • the first piston 51 is compressed, and the gas pressure in the chamber is increased.
  • the gas closes the first intake valve piece 511 to close the first intake groove on the cylinder plate 6. 611, and compressing the bellows of the first exhaust valve piece 81"' of the exhaust valve disc group 8"' and moving the bottom disc upward, the pressure gas in the first piston 51 passing through the first exhaust valve piece 81" 'The lower first vent hole 71'' along the gap between the inner wall of the first C-shaped boss 705"' of the plenum plate 7"' and the outer periphery of the first exhaust valve piece 81"' Central groove 701 '' and the upper cover 9 '' of the groove 901 '', the exhaust pipe 91 " 'discharged outwardly.
  • the wafer at the bottom of the three exhaust valve plates 81"', 82"', 83"' on the exhaust valve plate group 8"' may be flush with the connecting portion 84"', and the gas chamber pressure plate 7"'
  • the three circular grooves 711"', 721"', 731"' also correspond to the central groove 701"' on the plenum plate 7"' Flush.
  • the number of pistons is increased to four. And correspondingly increase the card hole of the umbrella-shaped connecting rod, the intake groove (hole) of the cylinder plate, the intake valve piece of the piston body, the exhaust hole of the air chamber pressure plate, and the number of the exhaust valve piece, so that they match; It is within the scope of the present invention.
  • the micropump which is easy to assemble according to the invention cleverly uses the connecting portion to connect three into the exhaust valve piece group, which effectively solves the problem that the assembly of the exhaust valve piece is not in place during installation, and has good industrial applicability.

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Abstract

一种易于装配的微型泵,是由马达(1)驱动、输送气体的设备,包括马达(1)、圆筒形底座(3)、带有斜插孔的偏心轮(2)、钢针(44)、带有三个卡孔的伞形连杆(4)、带有三个气缸孔的气缸板(6)、带有三个进气阀片和三个空心活塞的活塞体(5)、带有三个排气孔的气室压板(7)、带有排气管的上盖(9)和三个排气阀片;一个连接部将三个排气阀片连接成排气阀片组(8),该连接部为具有三角形的平片或三条星光式样的凸起,连接部的三个顶角各连接一个排气阀片;该排气阀片组安放在上盖与气室压板之间的内部空间中,三个排气阀片分别遮盖气室压板上对应的排气孔,可避免装配过程中漏装某一排气阀片的现象。

Description

易于装配的微型泵 技术领域
本发明涉及一种由马达驱动、输送气体的设备。
背景技术
现有技术的一种由马达驱动、输送气体的微型泵,其主要结构和工作原理如图1所示:包括:马达10、偏心轮20、底座30、伞形连杆40、橡胶制成的活塞体50、气缸板60、气室压板70、上盖90罩和三个排气阀片。工作时,当马达10的主轴110带着偏心轮20转动时,偏心轮20使伞形连杆40作倾斜的圆锥形运动。伞形连杆40的伞面带动活塞体50的三个活塞交替进行拉伸与压缩的运动,例如图1所示:活塞体50的第一活塞510被拉伸,第一活塞510的腔室产生负压使第一排气阀片810的伞面盖住气室压板70上对应的第一排气孔710同时使第一进气阀片5110打开;从进气口310进入底座30的气体经气缸板60上的第一进气孔6110进入第一活塞510拉大的腔室。与此同时,第二活塞520被压缩,它的腔室内的气体压力增大。该气体使对应的第二进气阀片5210关闭,封闭气缸板60上的第二进气孔6210,并使第二排气阀片820的伞面向上翻,第二活塞520中的气体经第二排气阀片820下面的第二排气孔720进入上盖90的内腔,然后从排气管910向外排出。
由于三个排气阀片为分体,在装配过程中,安装三个排气阀片会发生某一排气阀片安装不到位,甚至漏装某一排气阀片的现象。这种现象,只有在成品检验使才能发现和返工拆开重装,从而耽误了工期。
发明内容
本发明旨在提供一种易于装配的微型泵,以避免装配过程中某一排气阀片安装不到位,甚至漏装某一排气阀片的现象。
本发明的技术方案是:易于装配的微型泵,具有马达、圆筒形底座、带有斜插孔的偏心轮、钢针、带有复数个卡孔的伞形连杆、带有复数个气缸孔的气缸板、带有复数个进气阀片和复数个空心活塞的活塞体、带有复数个排气孔的气室压板、带有排气管的上盖和复数个排气阀片;一连接部将复数个排气阀片连接成排气阀片组,该连接部的复数个顶角各连接一个排气阀片;该排气阀片组安放在该上盖与该气室压板之间的内部空间中,该排气阀片组中的各排气阀片分别遮盖该气室压板上对应的排气孔。
种优选的实施结构中易于装配的微型泵,具有马达、圆筒形底座、带有斜插孔的偏心轮、钢针、带有三个卡孔的伞形连杆、带有三个气缸孔的气缸板、带有三个进气阀片和三个空心活塞的活塞体、带有三个排气孔的气室压板、带有排气管的上盖和三个排气阀片;一个连接部将这三个排气阀片连接成排气阀片组,该连接部具有三角形的平片或三条星光式样的凸起,该连接部的三个顶角各连接一个排气阀片;该排气阀片组安放在该上盖与该气室压板之间的内部空间中,该排气阀片组中的三个排气阀片分别遮盖该气室压板上对应的排气孔。
由于三个排气阀片被一个三角形的平片连接部或三条星光式样的连接部连接成排气阀片组;该排气阀片组整体一次性安放在该上盖与该气室压板之间的内部空间中,该排气阀片组中的三个排气阀片分别遮盖该气室压板上对应的排气孔,就可以避免装配过程中某一排气阀片安装不到位,甚至漏装某一排气阀片的现象。
在一种优选的实施结构中:所述排气阀片组的连接部是三条星光式样的凸起,该连接部的三个凸条自由端下侧各连接一个圆片式的排气阀片。所述气室压板的上端面中心设有三角形的中心凹槽,该中心凹槽的三个顶角上各围绕所对应的排气孔设置圆形凹槽;这三个圆形的凹槽等深度地与该中心凹槽连成一个整体;所述上盖的下端面设有一个平底凹槽,该平底凹槽内部环绕所述排气管的内孔保留了一个大圆环平台和一个小圆环平台;所述排气阀片组的连接部安放在所述气室压板的中心凹槽中;所述排气阀片组的三个排气阀片分别落在气室压板相应的圆形凹槽中,并遮盖对应的排气孔;所述上盖下端的平底凹槽和所述气室压板上端的中心凹槽及三个圆形凹槽封闭在同一个内部空间中;所述上盖下端大圆环平台的内侧壁恰好包容所述排气阀片组的连接部,而小圆环平台向下压住所述排气阀片组连接部三个凸条的自由端。
这种排气阀片组的实施结构,连接部不仅起到连接三个排气阀片的作用,还易于固定在上盖与气室压板之间的内部空间中。装配时使排气阀片组的三个排气阀片正确遮盖对应的排气孔,上盖上的大圆环平台与排气阀片组的连接部形成对中定位关系,可以直接使上盖上的小圆环平台和气室压板的中心凹槽对排气阀片组的连接部形成正确的夹持固定,所以排气阀片组及其对应的气室压板和上盖采用上述的结构及连接关系,便于装配。有利于提高装配的速度和效率。
特别是:所述上盖下端的平底凹槽中对应所述气室压板的三个圆形的凹槽保留了三个分别从外侧连接所述大圆环平台的C形平台,这三个C形平台内部分别对应地设有低于所述上盖下端面且外周带有加强筋的二级C形平台,和更低、更小且外周带有加强筋的三级C形平台。这种嵌套的三等级C形平台可以对其下面排气孔与排气阀片之间排出的气流起到阻尼的作用,从而抑制排气阀片的高频抖动,防止产生高频噪音。
一种气室压板与排气阀片组的辅助定位方式是:所述气室压板上端面中心凹槽三条边的中部各设一条向中心延伸的卡条,这三个卡条卡住排气阀片组的连接部。装配时气室压板的三条卡条起到对排气阀片组连接部的对中和角度定位作用,可以直接使排气阀片组的三个排气阀片正确遮盖对应的排气孔。有利于提高装配的速度和效率。
在改进的实施结构中:所述排气阀片组的连接部底部是边线向内凹的三角形的平片;所述排气阀片组连接部该凸起中三个凸条自由端的顶部各设一个定位孔;所述上盖的下端面平底凹槽内部从所述大圆环平台外侧到所述小圆环平台内侧均布三个径向的下凸条;所述小圆环平台的端面上对应所述排气阀片组的三个定位孔各设一个下凸柱;所述上盖下端面大圆环平台上的三个下凸条分别卡在所述气室压板的中心凹槽的三个边上并顶住所述排气阀片组的连接部的对应边;所述上盖下端面小圆环平台上的三个下凸柱分别插在所述排气阀片组连接部中央凸起上三个定位孔中。
相对前一种排气阀片组,本排气阀片组增加了边线向内凹的三角形的平片型加强筋。这种加强筋可以增加每一排气阀片从翻起状态恢复到遮盖气室压板上对应排气孔的能力,有利于提高产品的稳定性和使用寿命。本排气阀片组及其对应的气室压板和上盖采用上述的结构,新增的三个径向的下凸条为上盖与气室压板的连接提供了导向和对中限位的作用,同时这三个径向的下凸条又对排气阀片组连接部起到对中定位的作用。新增的三个定位孔和三个下凸柱可以使排气阀片组先装到上盖上,再随同上盖一起装到气室压板的中心凹槽中。方便了装配。有利于提高装配的速度和效率。
在另一种优选的实施结构中:所述排气阀片组的连接部是边线向内凹的三角形的平片,该连接部的三个顶角上所述排气阀片的底部为圆片,且该圆片的上端设有向上延伸的波纹管。所述气室压板的上端面中部设有边线向内凹的三角形的中心凹槽,该中心凹槽的三个顶角上围绕三个所述的排气孔各设一个圆形凹槽,这三个圆形凹槽的直径均大于所述排气阀片组中排气阀片底部圆片的直径且深度略大于该中心凹槽的深度;所述上盖的下端面上设有一个连通所述排气管的平底凹槽;所述排气阀片组的连接部安放在所述气室压板的中心凹槽中,该中心凹槽套住该连接部;所述排气阀片组的三个排气阀片底部的圆片分别落在所述气室压板的对应圆形凹槽中,遮盖对应的排气孔;所述上盖扣合在所述气室压板上,所述上盖的下端面与所述气室压板上端面密闭连接,将所述上盖下端的平底凹槽和所述气室压板上端的中心凹槽及三个圆形凹槽封闭在同一个内部空间中;所述排气阀片组的三个排气阀片的波纹管上端分别顶在平底凹槽的底面上。
相对前两种排气阀片组,本排气阀片组利用排气阀片中波纹管强大的弹力抵消底部圆片在排气孔气体压力作用下可能产生的高频振动,从工作机制上消除了排气阀片高频振动产生的噪音,从而降低整机的工作噪音。同时连接部边线向内凹的三角形的平片型加强筋可以增加每一排气阀片底部圆片从抬起状态恢复到遮盖气室压板上对应排气孔的能力,有利于提高产品的稳定性和使用寿命。气室压板的边线向内凹的三角形的中心凹槽和三个圆形凹槽可以直接对排气阀片组进行对中定位,保证排气阀片组的三个排气阀片落在三个圆形凹槽中。有利于提高装配的速度和效率。
在再一种优选的实施结构中:所述排气阀片组的三个排气阀片的底部均为圆片,该圆片的上端向上延伸出波纹管;所述排气阀片组的中心部分是三个边分别外接相邻排气阀片的三角形的平片式的连接部;所述气室压板的上端面上围绕三个所述的排气孔各设一个圆形凹槽,这三个圆形凹槽的直径均大于所述排气阀片组中排气阀片底部圆片的直径;所述气室压板的上端面中部设有三个边分别外接相邻圆形凹槽的三角形的中心凹槽,该中心凹槽的三个顶角各连通一个圆形凹槽;所述上盖的下端面上设有一个连通所述排气管的平底凹槽;所述排气阀片组的连接部安放在所述气室压板的中心凹槽中,该中心凹槽套住该连接部;所述排气阀片组的三个排气阀片底部的圆片分别落在所述气室压板的对应圆形凹槽中,遮盖对应的排气孔;所述上盖下端的平底凹槽和所述气室压板上端的中心凹槽及三个圆形凹槽封闭在同一个内部空间中;所述排气阀片组的三个排气阀片的波纹管上端分别顶在平底凹槽的底面上。
相对前一种排气阀片组,本排气阀片组的各个排气阀片中波纹管的作用相同,只是连接部的三角形的平片型加强筋增大了,可以进一步提高每一排气阀片底部圆片从抬起状态恢复到遮盖气室压板上对应排气孔的能力,有利于提高产品的稳定性和使用寿命。
特别是对于上述两种实施结构:所述气室压板的上端面每个圆形凹槽处设有一个与该圆形凹槽平滑连接的C形凸台,这三个C形凸台的开口均向中心凹槽中心设置;所述气室压板的三个C形凸台伸入所述上盖下端的平底凹槽中。三个C形凸台可以在装配时对排气阀片组的三个排气阀片起到导向的作用,有利于提高装配的速度和效率;三个C形凸台在产品运行状态对排气阀片组三个排气阀片的抬升和下降运动起到限位的作用,使排气阀片的动作更加平稳。
本发明易于装配的微型泵,通过使用连接部将三个排气阀片连接成排气阀片组,该排气阀片组整体一次性安装,解决了装配过程中某一排气阀片安装不到位,甚至漏装某一排气阀片的问题。进而对气室压板上表面的结构和上盖下端面内凹部的结构加以改进,使之便于装配。这种微型泵附加结构简单,附加成本低,易于实施,但可提高装配的速度。所以,本发明易于装配的微型泵具有良好的推广潜力。
附图说明
图1为现有微型泵的工作原理示意图。
图2为本发明实施例1的展开结构示意图。
图3为图2实施例1中活塞体的俯视结构示意图。
图4为图3中A-A剖面的结构示意图。
图5为图2实施例1中气缸板的俯视结构示意图。
图6为图5中B-B剖面的结构示意图。
图7为图2实施例1中气室压板的俯视结构示意图。
图8为图7中C-C剖面的结构示意图。
图9为图2实施例1中气室压板的仰视结构示意图。
图10为图2实施例1中排气阀片的俯视结构示意图。
图11为图2实施例1中上盖的仰视结构示意图。
图12为图11中D-D剖面的结构示意图。
图13为图2实施例1的正面结构示意图。
图14为图2实施例的俯视结构示意图。
图15为图14中E-E向的折线剖视结构示意图。
图16为本发明实施例2中气室压板的俯视结构示意图。
图17为本发明实施例2中排气阀片组的俯视结构示意图。
图18为本发明实施例2中上盖的仰视结构示意图。
图19为本发明实施例中2气室压板、排气阀片组和上盖装配后的剖面结构示意图。
图20为本发明实施例3中气室压板的俯视结构示意图。
图21为本发明实施例3中排气阀片组的俯视结构示意图。
图22为本发明实施例3中上盖的仰视结构示意图。
图23为本发明实施例3中气室压板、排气阀片组和上盖装配后的剖面结构示意图。
图24为本发明实施例4中气室压板的俯视结构示意图。
图25为本发明实施例4中排气阀片组的俯视结构示意图。
图26为本发明实施例4中上盖的仰视结构示意图。
图27为本发明实施例4中气室压板、排气阀片组和上盖装配后的剖面结构示意图。
具体实施方式
实施例1、本发明易于装配的微型泵,请参看图2-15。该易于装配的微型泵具有马达1、偏心轮2、底座3、钢针44、滚珠45、伞形连杆4、活塞体5、气缸板6、气室压板7、排气阀片组8和上盖9。
橡胶制成的活塞体5,它上端的平板部上均布三个向下延伸的空心的活塞51、52、53和三个进气阀片511、521、531,三个活塞51、52、53的下端分别设向下延伸的卡接部512、522、532。
气缸板6上对应活塞体5的三个活塞51、52、53设有三个相应的气缸孔61、62、63。气缸板6的上表面对应活塞体5的三个进气阀片511、521、531设有三个相应的进气槽611、621、631;这三个进气槽611、621、631的外端延伸到气缸板6的外周面,与大气连通。气缸板6的下部开出让位空腔64。
气室压板7上对应活塞体5的三个活塞51、52、53设有三个相应的排气孔71、72、73。在气室压板7的上端面中心设一个有三角形的中心凹槽701。在气室压板7的上端面中心凹槽701的三个顶角上围绕第一排气孔71设有圆形的第一凹槽705;围绕第二排气孔72设有圆形的第二凹槽706;围绕第三排气孔73设有圆形的第三凹槽707。三个圆形的凹槽705、706、707的大小相同且等深度地与中心凹槽701连成一个整体;在中心凹槽701三条边的中部分别对应地设有三条向中心延伸的卡条703、703、704。气室压板7的下端面上对应活塞体5的三个活塞51、52、53和三个进气阀片511、521、531分别设有三个相应的进气导槽741、742、743。
排气阀片组8用橡胶制成,它的中心部分是三条星光式样的凸起的连接部84,该连接部84的三个凸条自由端841、842、843上部的两侧分别开有台阶,该连接部84的三个凸条自由端841、842、843下侧分别设有圆片式的排气阀片81、82、83。
请参看图10:上盖9的主体为外周均布三个让位槽的圆盘,该主体的中央设有向上延伸的排气管91,排气管91的内孔从主体底面一直贯穿到排气管91的上端。该主体的下端面90上设有一个与该主体的外轮廓相对应的平底凹槽901,该主体的下端面90上在平底凹槽901的外侧设有轮廓相同的密封圈槽902。该主体的下端面90上在平底凹槽901内部环绕排气管91的内孔保留了一个大圆环平台903和一个小圆环平台904。该主体的下端面90上对应气室压板7的三个圆形的凹槽705、706、707保留了三个分别从外侧连接大圆环平台903的C形平台905、906、907。三个C形平台905、906、907内部分别对应地设有低于主体下端面90且外周带有加强筋的二级C形平台9051、9061、9071,和更低、更小且外周带有加强筋的三级C形平台9052、9062、9072。
请参看图13-15:马达1安装在圆筒形的底座3下端,并由两个螺钉12固定在一起。偏心轮2和伞形连杆4设在底座3内。偏心轮2安装在马达1的主轴11上。偏心轮2上部向内倾斜的斜插孔内装设钢针44和滚珠45。钢针44的下端面顶住斜插孔底部的滚珠45,钢针44的上端伸出斜插孔之外并固定连接伞形连杆4的主轴。气缸板6安装在底座3上端。活塞体5的平板部叠在气缸板6的上表面,活塞体5的三个活塞51、52、53分别插在气缸板6的三个气缸孔61、62、63中。活塞体5的三个卡接部512、522、532分别卡接在伞形连杆4伞面上的三个卡孔中。
气室压板7盖在活塞体5的平板部上表面,并封闭活塞体5的三个活塞51、52、53的腔室。气室压板7上的三个排气孔71、72、73分别正对活塞体5上三个活塞51、52、53的腔室中央。气室压板7下表面的第一进气导槽741为活塞体5的第一活塞51和第一进气阀片511提供通道,以便第一进气阀片511打开时,外部的气体可以从气缸板6上对应的第一进气槽611,进入第一活塞51的腔室中。气室压板7下表面的第二进气导槽742为活塞体5的第二活塞52和第二进气阀片521提供通道。气室压板7下表面的第三进气导槽743活塞体5的第三活塞53和第三进气阀片531提供通道。
排气阀片组8的连接部84安放在气室压板7的中心凹槽701中,中心凹槽701周边的三个卡条702、703、704卡住该连接部84,使其不能转动和移动。排气阀片组8的三个排气阀片81、82、83分别落在气室压板7的三个圆形的凹槽705、706、707中,并遮盖三个排气孔71、72、73中对应的排气孔。
上盖9扣合在气室压板7上,上盖9主体的下端面上密封圈槽902中安放的密封圈将上盖9主体下端面90上的平底凹槽901和气室压板7上端面的三个圆形凹槽705、706、707封闭在同一个内部空间中。上盖9主体的下端面90上大圆环平台903的内侧壁恰好包容排气阀片组8的连接部84,而小圆环平台904向下压住排气阀片组8的连接部84的三个凸条的自由端841、842、843。使排气阀片组8只有三个排气阀片81、82、83可以分别在上盖9的三个C形平台905、906、907中对应C形平台的下方作上翻的动作。
当马达1的主轴11带着偏心轮2转动时,偏心轮2使伞形连杆4作倾斜的圆锥形运动。伞形连杆4的伞面带动活塞体5的三个活塞51、52、53交替进行拉伸与压缩的运动,例如图15所示:活塞体5的第三活塞53被拉伸,第三活塞53的腔室产生负压使排气阀片组8中的第三排气阀片83盖住气室压板7上第三排气孔73,同时使第三进气阀片531打开;外部的气体经气缸板6上的第三进气槽631和气室压板7上的第三进气导槽743进入第三活塞53拉大的腔室。与此同时,第一活塞51被压缩,它的腔室内的气体压力增大。该气体使第一进气阀片511关闭,封闭气缸板6上的第一进气槽611,并使排气阀片组8的第一排气阀片81向上翻,第一活塞51中的压力气体经第一排气阀片81下面的第一排气孔71沿气室压板7的圆形的第一凹槽705、中心凹槽701和上盖9的平底凹槽901、排气管91向外排放。
实施例2、本发明易于装配的微型泵另一个实施例,如同前一个实施例具有马达1、偏心轮2、底座3、钢针44、滚珠45、伞形连杆4、活塞体5和气缸板6,对于它们的结构和连接关系就不作赘述了。但是本实施例中的气室压板7’、排气阀片组8’和上盖9’ 的结构和连接关系与前一个实施例不同。
请参看图16:气室压板7’上对应活塞体5的三个活塞51、52、53设有三个相应的排气孔71’、72’、73’。在气室压板7’的上端面中部对应三个排气孔71’、72’、73’设有三角形的中心凹槽701’,在中心凹槽701’的三个顶角上围绕三个排气孔71’、72’、73’分别设有圆形的凹槽705’、706’、707’。三个圆形的凹槽705’、706’、707’的大小相同且与中心凹槽701’ 等深度地连成一个整体。气室压板7’的下端面上对应活塞体5的三个活塞51、52、53和三个进气阀片511、521、531分别设有三个相应的进气导槽。
请参看图17:排气阀片组8’用橡胶制成,它的中心部分是边线向内凹的三角形的平片型连接部840’,该连接部840’的三个顶角分别设有圆片式的排气阀片81’、82’、83’。该连接部840’中央设三条星光式样的凸起84’, 该凸起84’中三个凸条自由端841’、842’、843’上部的两侧分别开有台阶,并在三个凸条自由端841、842、843的顶部分别设有相应的定位孔8411’、8421’、8431’。
请参看图18:上盖9’的主体为外周均布三个让位槽的圆盘,该主体的中央设有向上延伸的排气管91’,排气管91’的内孔从主体底面一直贯穿到排气管91’的上端。该主体的下端面90’上设有一个与该主体的外轮廓相对应的平底凹槽901’,该主体的下端面90’上在平底凹槽901’的外侧设有轮廓相同的环形凸棱902’。该主体的下端面90’上在平底凹槽901’内部环绕排气管91’的内孔保留了一个大圆环平台903’和一个小圆环平台904’。该主体的下端面上对应气室压板7’的三个圆形的凹槽705’、706’、707’保留了三个分别从外侧连接大圆环平台903’的C形平台905’、906’、907’。从大圆环平台903’外侧到小圆环平台904’内侧在三个C形平台905’、906’、907’之间两两相交的位置分别设有径向的下凸条9031’。在小圆环平台904’的端面上对应三个C形平台905’、906’、907’分别设有下凸柱9041’。在三个C形平台905’、906’、907’内部分别对应地设有低于主体下端面90’且外周带有加强筋的二级C形平台9051’、9052’、9061’,和更低、更小且外周带有加强筋的三级C形平台9062’、9062’、9072’。
气室压板7’盖在活塞体5的平板部上表面,并封闭活塞体5的三个活塞51、52、53的腔室。气室压板7’上的三个排气孔71’分别正对活塞体5上对应活塞的腔室中央。气室压板7’下表面的三个进气导槽分别为活塞体5的对应活塞和对应进气阀片提供通道。
排气阀片组8’的连接部840’安放在气室压板7’的中心凹槽701’中。排气阀片组8’的三个排气阀片81’、82’、83’分别对应地落在气室压板7’的三个圆形凹槽705’、706’、707’中,遮盖排气孔71’、72’、73中对应的排气孔。
请参看图19:上盖9’扣合在气室压板7’上,上盖9’上的大圆环平台903’包住排气阀片组8’连接部840’中央的三条星光式样的凸起84’,大圆环平台903’上的三个下凸条9031’分别卡在气室压板7’的中心凹槽701’的三个边上并顶住排气阀片组8’的连接部840’的对应边。使排气阀片组8’不能转动和移动。上盖9’上的小圆环平台904’压在排气阀片组8’连接部840’中央凸起84’的三条凸条自由端841’、842’、843’上,上盖9’小圆环平台904’上的三个下凸柱9041’分别插在排气阀片组8’连接部840’中央凸起84’三条凸条自由端841’、842’、843’上相应的三个定位孔8411’、8421’、8431’中。上盖9’主体下端面90’上的环形凸棱902’顶在气室压板7’的上端面上,将上盖9’主体下端面90’上的凹槽901’和气室压板7’上端面的中心凹槽701’及三个圆形凹槽705’、706’、707’封闭在同一个内部空间中。由于上盖9’主体的下端面上大圆环平台903’的内侧壁恰好包容排气阀片组8’的连接部840’中央的凸起84’,而小圆环平台904’向下压住排气阀片组8’的连接部840’中央凸起84’三条凸条自由端841’、842’、843’,使排气阀片组8’只有三个排气阀片81’、82’、83’可以在上盖9’的三个C形平台905’、906’、907’中对应C形平台下方作上翻的动作。
当马达1的主轴11带着偏心轮2转动时,偏心轮2使伞形连杆4作倾斜的圆锥形运动。伞形连杆4的伞面带动活塞体5的三个活塞51、52、53交替进行拉伸与压缩的运动。例如:活塞体5的第三活塞53被拉伸,第三活塞53的腔室产生负压使排气阀片组8’中的第三排气阀片83’盖住气室压板7’上第三排气孔73’,同时使第三进气阀片打开;外部的气体经气缸板6上的第三进气槽和气室压板7’上的第三进气导槽进入第三活塞53拉大的腔室。与此同时,第一活塞51被压缩,它的腔室内的气体压力增大。该气体使第一进气阀片关闭,封闭气缸板6上的第一进气槽,并使排气阀片组8’的第一排气阀片81’向上翻,第一活塞51中的压力气体经第一排气阀片81’下面的第一排气孔71’沿气室压板7的第一凹槽705’和上盖9’的凹槽901’、排气管91’向外排放。
实施例3、本发明易于装配的微型泵再一个实施例,如同第一个实施例具有马达1、偏心轮2、底座3、钢针44、滚珠45、伞形连杆4、活塞体5和气缸板6,对于它们的结构和连接关系就不作赘述了。但是本实施例中的气室压板7”、排气阀片组8”和上盖9” 的结构和连接关系与第一个实施例不同。
请参看图20:气室压板7”上对应活塞体5的三个活塞51、52、53设有三个相应的排气孔71”、72”、73”。在气室压板7的上端面中部对应三个排气孔71”、72”、73” 设有边线向内凹的三角形的中心凹槽701”,在中心凹槽701”的三个顶角上围绕三个排气孔71”、72”、73” 分别设有圆形的凹槽711”、721”、731”和三个与对应圆形凹槽平滑连接的C形凸台705”、706”、707”。三个C形凸台705”、706”、707”的大小相同且开口分别向心设置,三个圆形凹槽711”、721”、731” 的大小相同且深度略大于中心凹槽701”的深度。气室压板7”的下端面上对应活塞体5的三个活塞51、52、53和三个进气阀片511、521、531分别设有三个相应的进气导槽。
请参看图21:排气阀片组8”用橡胶制成,它的中心部分是边线向内凹的三角形的平片式的连接部84”,该连接部84”的三个顶角分别设有排气阀片81”、82”、83”,三个排气阀片81”、82”、83”的底部为平的圆片,该圆片的直径略小于气室压板7”上三个圆形凹槽711”、721”、731”的直径;在每个圆片的上端分别沿外周向上延伸出波纹管。
请参看图22:上盖9”的主体为外周均布三个让位槽的圆盘,该主体的中央设有向上延伸的排气管91”,排气管91”的内孔从主体的下端面90”一直贯穿到排气管91”的上端。该主体的下端面90”上设有一个与该主体的外轮廓相对应的平底凹槽901”,该主体的下端面90”上在凹槽901”的外侧设有轮廓相同的环形凸棱902”。在平底凹槽901”底部对应气室压板7”的三个排气孔71”、72”、73” 分别设有三个相应的矮凸台905”、906”、907”。
请参看图23:排气阀片组8”的连接部84”安放在气室压板7”的中心凹槽701”中,中心凹槽701”套住该连接部84”,使其不能转动和移动。排气阀片组8”的三个排气阀片81”、82”、83”底部的圆片分别对应地落在气室压板7”的三个圆形凹槽705”、706”、707”中,遮盖三个排气孔71”、72”、73”中对应的排气孔。
上盖9”扣合在气室压板7”上,上盖9”主体的下端面90”上的环形凸棱902”与气室压板7”上端面密闭连接,将上盖9”主体下端面90”上的凹槽901”和气室压板7”上端面的中心凹槽701”及三个圆形凹槽711”、721”、731”封闭在同一个内部空间中。气室压板7”的三个C形凸台705”、706”、707”分别插入上盖9”下端的平底凹槽901”中。排气阀片组8”的三个排气阀片81”、82”、83”的波纹管上端分别对应地套住上盖9”的平底凹槽901”中三个矮凸台905”、906”、907”并顶在平底凹槽901”的底面上。上盖9”的排气管91”经平底凹槽901”与气室压板7”的中心凹槽701”及三个C形凸台705”、706”、707”连通。
当马达1的主轴11带着偏心轮2转动时,偏心轮2使伞形连杆4作倾斜的圆锥形运动。伞形连杆4的伞面带动活塞体5的三个活塞51、52、53交替进行拉伸与压缩的运动,例如:排气阀片组8”中的第三排气阀片83”由于波纹管的弹力作用,其底部的圆片始终盖住气室压板7”上第三排气孔73”,当活塞体5的第三活塞53被拉伸时,第三活塞53的腔室产生负压使第三进气阀片531打开;外部的气体经气缸板6上的第三进气槽631和气室压板7”上的第三进气导槽进入第三活塞53拉大的腔室。与此同时,第一活塞51被压缩,它的腔室内的气体压力增大。该气体使第一进气阀片511关闭,封闭气缸板6上的第一进气槽611,并使排气阀片组8”的第一排气阀片81”的波纹管压缩而底部圆片向上移动,第一活塞51中的压力气体经第一排气阀片81”下面的第一排气孔71”沿气室压板7”的第一C形凸台705”的内壁与第一排气阀片81”外周之间的间隙、中心凹槽701”和上盖9”的凹槽901”、排气管91”向外排放。
当然,排气阀片组8”上三个排气阀片81”、82”、83”底部的圆片可以与连接部84”平齐,而气室压板7”上三个圆形凹槽711”、721”、731”也与气室压板7”上的中心凹槽701” 平齐。
实施例4,发明易于装配的微型泵第四个实施例,如同第一个实施例具有马达1、偏心轮2、底座3、钢针44、滚珠45、伞形连杆4、活塞体5和气缸板6,对于它们的结构和连接关系就不作赘述了。但是本实施例中的气室压板7”’、排气阀片组8”’和上盖9”’ 的结构和连接关系与第一个实施例不同。
请参看图24:气室压板7”’上对应活塞体5的三个活塞51、52、53设有三个相应的排气孔71”’、72”’、73”’。在气室压板7”’的上端面上围绕排气孔71”’ 设有圆形凹槽711”’及与圆形凹槽711”’平滑连接的C形凸台705”’,围绕排气孔72”’ 设有圆形凹槽721”’及与圆形凹槽721”’平滑连接的C形凸台706”’,围绕排气孔73”’设有圆形凹槽731”’及与圆形凹槽731”’平滑连接的C形凸台707”’,这三个C形凸台705”’、706”’、707”’的大小相同且开口分别向心设置。气室压板7”’的上端面中部设有三个边分别外接相邻圆形凹槽的三角形的中心凹槽701”’,该中心凹槽701”’的三个顶角各连通一个圆形凹槽;三个圆形凹槽711”’、721”’、731”’的大小相同且深度略大于中心凹槽701”’的深度。气室压板7”’的下端面上对应活塞体5的三个活塞51、52、53和三个进气阀片511、521、531分别设有三个相应的进气导槽。
请参看图25:排气阀片组8”’用橡胶制成,它的三个排气阀片81”’、82”’、83”’的底部均为圆片,该圆片的直径略小于气室压板7”’上三个圆形凹槽711”’、721”’、731”’的直径;该圆片的上端向上延伸出波纹管;排气阀片组8”’的中心部分是三个边分别外接相邻排气阀片的三角形的平片式的连接部84”’。
请参看图26:上盖9”’的主体为外周均布三个让位槽的圆盘,该主体的中央设有向上延伸的排气管91”’,排气管91”’的内孔从主体的下端面90”’一直贯穿到排气管91”’的上端。该主体的下端面90”’上设有一个与该主体的外轮廓相对应的平底凹槽901”’,该主体的下端面90”’上在凹槽901”’的外侧设有轮廓相同的环形凸棱902”’。在平底凹槽901”’底部对应气室压板7”’的三个排气孔71”’、72”’、73”’ 分别设有三个相应的矮凸台905”’、906”’、907”’。
请参看图27:排气阀片组8”’的连接部84”’安放在气室压板7”’的中心凹槽701”’中,中心凹槽701”’套住该连接部84”’,使其不能转动和移动。排气阀片组8”’的三个排气阀片81”’、82”’、83”’底部的圆片分别落在气室压板7”’ 对应的圆形凹槽中,遮盖对应的排气孔。
上盖9”’扣合在气室压板7”’上,上盖9”’主体的下端面90”’上的环形凸棱902”’与气室压板7”’上端面密闭连接,将上盖9”’主体下端面90”’上的凹槽901”’和气室压板7”’上端面的中心凹槽701”’及三个圆形凹槽711”’、721”’、731”’封闭在同一个内部空间中。气室压板7”’的三个C形凸台705”’、706”’、707”’分别插入上盖9”’下端的平底凹槽901”’中。排气阀片组8”’的三个排气阀片81”’、82”’、83”’的波纹管上端分别套住上盖9”’的平底凹槽901”’中对应的矮凸台并顶在平底凹槽901”’的底面上。上盖9”’的排气管91”’经平底凹槽901”’与气室压板7”’的中心凹槽701”’及三个C形凸台705”’、706”’、707”’连通。
当马达1的主轴11带着偏心轮2转动时,偏心轮2使伞形连杆4作倾斜的圆锥形运动。伞形连杆4的伞面带动活塞体5的三个活塞51、52、53交替进行拉伸与压缩的运动,例如:排气阀片组8”’中的第三排气阀片83”’由于波纹管的弹力作用,其底部的圆片始终盖住气室压板7”’上第三排气孔73”’,当活塞体5的第三活塞53被拉伸时,第三活塞53的腔室产生负压使第三进气阀片531打开;外部的气体经气缸板6上的第三进气槽631和气室压板7”’上的第三进气导槽进入第三活塞53拉大的腔室。与此同时,第一活塞51被压缩,它的腔室内的气体压力增大。该气体使第一进气阀片511关闭,封闭气缸板6上的第一进气槽611,并使排气阀片组8”’的第一排气阀片81”’的波纹管压缩而底部圆片向上移动,第一活塞51中的压力气体经第一排气阀片81”’下面的第一排气孔71”’沿气室压板7”’的第一C形凸台705”’的内壁与第一排气阀片81”’外周之间的间隙、中心凹槽701”’和上盖9”’的凹槽901”’、排气管91”’向外排放。
当然,排气阀片组8”’上三个排气阀片81”’、82”’、83”’底部的圆片可以与连接部84”’平齐,而气室压板7”’上三个圆形凹槽711”’、721”’、731”’也与气室压板7”’上的中心凹槽701”’ 平齐。
以上所述,仅为本发明较佳实施例,不以此限定本发明实施的范围,依本发明的技术方案及说明书内容所作的等效变化与修饰,例如将活塞的数量增加到四个,并相应增加伞形连杆的卡孔、气缸板的进气槽(孔)、活塞体的进气阀片、气室压板的排气孔、排气阀片的数量,使之相配;皆应属于本发明涵盖的范围。
工业实用性
本发明易于装配的微型泵,巧妙的利用连接部将三个连接成排气阀片组,有效的解决了安装时易出现排气阀片装配不到位的问题,具有良好的工业实用性。

Claims (10)

  1. 易于装配的微型泵,具有马达、圆筒形底座、带有斜插孔的偏心轮、钢针、带有复数个卡孔的伞形连杆、带有复数个气缸孔的气缸板、带有复数个进气阀片和复数个空心活塞的活塞体、带有复数个排气孔的气室压板、带有排气管的上盖和复数个排气阀片;
    一连接部将复数个排气阀片连接成排气阀片组,该连接部的复数个顶角各连接一个排气阀片;该排气阀片组安放在该上盖与该气室压板之间的内部空间中,该排气阀片组中的各排气阀片分别遮盖该气室压板上对应的排气孔。
  2. 根据权利要求1所述的易于装配的微型泵,其特征在于:所述微型泵具有马达、圆筒形底座、带有斜插孔的偏心轮、钢针、带有三个卡孔的伞形连杆、带有三个气缸孔的气缸板、带有三个进气阀片和三个空心活塞的活塞体、带有三个排气孔的气室压板、带有排气管的上盖和三个排气阀片;
    一连接部将三个排气阀片连接成排气阀片组,该连接部具有三角形的平片或三条星光式样的凸起,该连接部的三个顶角各连接一个排气阀片;该排气阀片组安放在该上盖与该气室压板之间的内部空间中,该排气阀片组中的三个排气阀片分别遮盖该气室压板上对应的排气孔。
  3. 根据权利要求2所述的易于装配的微型泵,其特征在于:所述排气阀片组的连接部是三条星光式样的凸起,三个凸条自由端下侧各连接一圆片式的排气阀片;所述气室压板的上端面中心设有三角形的中心凹槽,三个顶角上各设置圆形凹槽,三个圆形的凹槽等深度地与该中心凹槽连成一个整体;所述上盖的下端面设有一个平底凹槽,其内部环绕所述排气管的内孔保留了一大、一小阶梯圆环平台;所述排气阀片组的连接部安放在所述气室压板的中心凹槽中;所述排气阀片组的三个排气阀片分别落在气室压板相应的圆形凹槽中,并遮盖对应的排气孔;所述上盖下端的平底凹槽和所述气室压板上端的中心凹槽及三个圆形凹槽封闭在同一个内部空间中;所述上盖下端大圆环平台的内侧壁恰好包容所述排气阀片组的连接部,而小圆环平台向下压住所述排气阀片组连接部三个凸条的自由端。
  4. 根据权利要求3所述的易于装配的微型泵,其特征在于:所述上盖下端的平底凹槽中对应所述气室压板的三个圆形的凹槽保留了三个分别从外侧连接所述大圆环平台的C形平台,这三个C形平台内部分别对应地设有低于所述上盖下端面且外周带有加强筋的二级C形平台,和更低、更小且外周带有加强筋的三级C形平台。
  5. 根据权利要求3或4所述的易于装配的微型泵,其特征在于:所述气室压板上端面中心凹槽三条边的中部各设一条向中心延伸的卡条,这三个卡条卡住排气阀片组的连接部。
  6. 根据权利要求3或4所述的易于装配的微型泵,其特征在于:所述排气阀片组的连接部底部是边线向内凹的三角形的平片;所述排气阀片组连接部该凸起中三个凸条自由端的顶部各设一个定位孔;所述上盖的下端面平底凹槽内部从所述大圆环平台外侧到所述小圆环平台内侧均布三个径向的下凸条;所述小圆环平台的端面上对应所述排气阀片组的三个定位孔各设一个下凸柱;所述上盖下端面大圆环平台上的三个下凸条分别卡在所述气室压板的中心凹槽的三个边上并顶住所述排气阀片组的连接部的对应边;所述上盖下端面小圆环平台上的三个下凸柱分别插在所述排气阀片组连接部中央凸起上三个定位孔中。
  7. 根据权利要求2所述的易于装配的微型泵,其特征在于:所述排气阀片组的连接部是边线向内凹的三角形的平片,三个顶角上连接排气阀片的底部为圆片,且该圆片的上端设有向上延伸的波纹管;所述气室压板的上端面中部设有边线向内凹的三角形的中心凹槽,三个顶角上围绕三个所述的排气孔各设一个圆形凹槽,三个圆形凹槽与排气阀片底部圆片相吻合;所述上盖的下端面上设有一个连通所述排气管的平底凹槽;所述排气阀片组的连接部安放在所述气室压板的中心凹槽中,该中心凹槽套住该连接部;所述排气阀片组的三个排气阀片底部的圆片分别落在所述气室压板的对应圆形凹槽中,遮盖对应的排气孔;所述上盖下端的平底凹槽和所述气室压板上端的中心凹槽及三个圆形凹槽封闭在同一个内部空间中;所述排气阀片组的三个排气阀片的波纹管上端分别顶在所述上盖下端的平底凹槽的底面上。
  8. 根据权利要求2所述的易于装配的微型泵,其特征在于:所述排气阀片组的三个排气阀片的底部均为圆片,该圆片的上端向上延伸出波纹管;所述排气阀片组的中心部分是三个边分别外接相邻排气阀片的三角形的平片式的连接部;所述气室压板的上端面上围绕三个所述的排气孔各设一个圆形凹槽,这三个圆形凹槽的直径均大于所述排气阀片组中排气阀片底部圆片的直径;所述气室压板的上端面中部设有三个边分别外接相邻圆形凹槽的三角形的中心凹槽,该中心凹槽的三个顶角各连通一个圆形凹槽;所述上盖的下端面上设有一个连通所述排气管的平底凹槽;所述排气阀片组的连接部安放在所述气室压板的中心凹槽中,该中心凹槽套住该连接部;所述排气阀片组的三个排气阀片底部的圆片分别落在所述气室压板的对应圆形凹槽中,遮盖对应的排气孔;所述上盖下端的平底凹槽和所述气室压板上端的中心凹槽及三个圆形凹槽封闭在同一个内部空间中;所述排气阀片组的三个排气阀片的波纹管上端分别顶在平底凹槽的底面上。
  9. 根据权利要求7或8所述的易于装配的微型泵,其特征在于:所述气室压板的上端面每个圆形凹槽处设有一个与该圆形凹槽平滑连接的C形凸台,这三个C形凸台的开口均向中心凹槽中心设置;所述气室压板的三个C形凸台伸入所述上盖下端的平底凹槽中。
  10. 根据权利要求1所述的易于装配的微型泵,其特征在于:所述排气阀片可以是2个、4个,相应的连接部将2个或4个排气阀片连接成排气阀片组,该连接部的各顶角各连接一个排气阀片;该排气阀片组安放在该上盖与该气室压板之间的内部空间中,该排气阀片组中各个排气阀片分别遮盖该气室压板上对应的排气孔。
PCT/CN2013/083566 2012-09-17 2013-09-16 易于装配的微型泵 WO2014040567A1 (zh)

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