WO2018082155A1 - 用于泵浦的活塞组件及泵浦 - Google Patents

用于泵浦的活塞组件及泵浦 Download PDF

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Publication number
WO2018082155A1
WO2018082155A1 PCT/CN2016/109068 CN2016109068W WO2018082155A1 WO 2018082155 A1 WO2018082155 A1 WO 2018082155A1 CN 2016109068 W CN2016109068 W CN 2016109068W WO 2018082155 A1 WO2018082155 A1 WO 2018082155A1
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WO
WIPO (PCT)
Prior art keywords
hole
piston assembly
airbag
connecting bracket
sleeve
Prior art date
Application number
PCT/CN2016/109068
Other languages
English (en)
French (fr)
Inventor
董振凯
阙培涛
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 CN201610939942.5A external-priority patent/CN108005888B/zh
Priority claimed from CN201621164253.3U external-priority patent/CN206309566U/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 WO2018082155A1 publication Critical patent/WO2018082155A1/zh

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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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers

Definitions

  • the present invention relates to the field of pump body equipment, and more particularly to a piston assembly and pump for pumping.
  • the general diaphragm pump has many parts and high cost.
  • a plurality of intake valves are required on the upper cover of the pump, and a plurality of intake ports are also provided, and the overall structure of the upper cover is too complicated.
  • the present application is directed to providing a piston assembly for pumping that is structurally configured to facilitate reducing the number of parts pumped and reducing cost.
  • Another object of the present invention is to provide a pump having the piston assembly described above.
  • a piston assembly for pumping includes: an air bag comprising: a base plate, a balloon body and a sleeve, the base disk and the sleeve being respectively disposed on the opposite side of the capsule body
  • the inner cavity defines an air cavity
  • the air cavity penetrates through a side facing the base disk to form an opening
  • a bottom wall of the air cavity is provided with a first through hole communicating with the sleeve a movable connecting bracket, wherein the connecting bracket is provided with a connecting leg, and the connecting leg is provided with a second through hole, and the connecting leg extends into the sleeve, when the connecting bracket is active
  • the second through hole and the first through hole are alternately connected and disconnected.
  • the piston assembly for pumping can not only compress the gas but also control the intake air by using the connecting leg on the connecting bracket, thereby reducing the number of parts to be pumped and reducing the cost.
  • the intake valve is arranged on the connecting bracket, which also simplifies the structure of the upper cover and reduces the processing difficulty.
  • the connecting bracket when the connecting bracket is active, the second through hole and the first through hole are alternately oppositely and phase-displaced, and in the second through hole and the first When a through hole is opposite to each other, the second through hole may enter the air cavity through the first through hole, and when the second through hole is misaligned with the first through hole, the connection The leg seals the first through hole.
  • the piston assembly further includes an intake check valve, the intake check valve being disposed in the air bag to control a one-way flow of the gas from the second through hole toward the air chamber .
  • the connecting leg defines an inlet cavity that is open toward a direction away from the air bag, and the second through hole is formed in a bottom wall of the inlet cavity.
  • the plurality of capsules are disposed on a same side of the base tray, and each side of the capsule is remote from the base tray.
  • the connecting bracket is provided with a lug on a side facing the airbag, and the plurality of connecting legs are spaced apart around the lug.
  • the connecting bracket comprises: an intermediate disc and a connecting disc, wherein the connecting disc and the connecting leg are respectively disposed on opposite sides of the intermediate disc, wherein the connecting disc is provided with a connecting hole A plurality of the connecting legs are spaced apart around the lands.
  • the base disk is formed in a circular shape or formed into a polygon having a number of sides equal to the number of the capsules, and the plurality of the capsules are evenly spaced around the center line of the base disk. .
  • the pump includes a motor, a base, an eccentric assembly, a piston assembly, an airbag seat, and an upper cover, the piston assembly being a piston assembly for pumping according to the above-described embodiments of the present invention,
  • the eccentric assembly is coupled to the attachment bracket.
  • the pump according to the embodiment of the present invention can not only compress the gas but also control the intake air by connecting the connecting legs on the connecting bracket, thereby reducing the number of parts to be pumped and reducing the cost.
  • the intake valve is arranged on the connecting bracket, which also simplifies the structure of the upper cover and reduces the processing difficulty.
  • FIG. 1 is a top plan view of a piston assembly in accordance with one embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • FIG. 3 is a top plan view of a piston assembly in accordance with another embodiment of the present invention.
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 3;
  • Figure 5 is a schematic view showing the pumping of a certain balloon of the airbag according to an embodiment of the present invention.
  • Figure 6 is a schematic view of the pump shown in Figure 5 when the balloon is squeezed;
  • Fig. 7 is a schematic view showing the pumping of a certain balloon of the airbag when it is stretched according to another embodiment of the present invention.
  • connecting bracket 12 connecting leg 121, inlet cavity 1210, second through hole 1211, intermediate disk 122, connecting plate 123, connecting hole 1231, bump 124, connecting rib 125,
  • the upper cover 2 the air outlet 21, the first fastening member 23,
  • the airbag seat 6, the matching hole 61, and the limiting groove 62 are identical to each other.
  • a piston assembly 1 for pumping according to an embodiment of the present invention will now be described with reference to Figs.
  • a piston assembly 1 for pumping according to an embodiment of the present invention includes an airbag 11 and a movable connecting bracket 12.
  • the air bag 11 includes a base plate 111, a capsule 112 and a sleeve 113.
  • the base plate 111 and the sleeve 113 are respectively disposed on opposite sides of the capsule 112, and the balloon 112 defines an air cavity therein.
  • the air chamber 1120 penetrates through a side facing the base plate 111 to form an opening 1122.
  • the bottom wall of the air chamber 1120 is provided with a first through hole 1121 of the communication sleeve 113.
  • the connecting bracket 12 is provided with a connecting leg 121.
  • the connecting leg 121 is provided with a second through hole 1211, and the connecting leg 121 extends into the sleeve 113.
  • the connecting leg 121 moves toward the airbag 11, the connecting leg 121 can press the capsule 112; when the connecting leg 121 moves away from the airbag 11, the connecting leg 121 can be pulled by friction with the sleeve 113
  • the sleeve 113 is such that the balloon 112 can be pulled.
  • the second through hole 121 of FIG. 2 penetrates the connecting leg 121 along the axial direction of the sleeve 113.
  • the extending direction of the second through hole 121 is not limited thereto, as long as the second through hole 121 communicates with the outside of the sleeve 113. .
  • the capsule 112 of the airbag 11 is a flexible member, for example, the capsule 112 may be made of rubber or plastic, so that the airbag 11 is deformable when pressed and changes the volume of the air chamber 1120.
  • the power component drives the connecting bracket 12 to reciprocate, and the connecting leg 121 on the connecting bracket 12 alternately presses and pulls the capsule 112, thereby alternately changing the volume of the air chamber 1120 in the capsule 112. .
  • the capsule 112 is pulled, the volume of the air chamber 1120 is increased to complete the suction operation; when the capsule 112 is squeezed, the volume of the air chamber 1120 is reduced to complete the exhausting operation. Therefore, the reciprocating motion of the connecting bracket 12 can realize the purpose of reciprocating the gas and the exhaust gas of the balloon 112 of the airbag 11, so that the gas can be continuously driven to flow in a specific direction.
  • the air inlet is usually disposed on the upper cover of the pump, and then the intake valve for controlling the intake air is disposed on the upper cover.
  • the intake valve for controlling the intake air is disposed on the upper cover.
  • the first through hole 1121 is disposed on the bottom wall of the air chamber 1120, and the second through hole 1211 is disposed on the connecting leg 121.
  • the connecting bracket 12 When the connecting bracket 12 is active, the second through hole 1211 and the first through hole are formed.
  • the 1121 can be alternately connected and disconnected.
  • the movement of the connecting leg 121 when the connecting bracket 12 is active is changed, and the deformation of the capsule 112 when the capsule 112 is pressed and pulled, so that the first through hole of the air chamber 1120 is made.
  • the 1121 can be alternately turned on and blocked to complete the intake control of the airbag 11.
  • the connecting leg 121 of the connecting bracket 12 not only functions to squeeze and pull the capsule 112, but also serves as an intake valve of the airbag 11.
  • the piston assembly 1 for pumping can not only compress the gas but also control the intake air by reducing the connection of the legs 121 on the connecting bracket 12, thereby reducing the number of parts of the pump 100 and reducing the number of parts of the pump 100.
  • the cost Moreover, the intake valve is disposed on the connecting bracket 12, which also simplifies the structure of the upper cover 2 and reduces the processing difficulty.
  • FIGS. 1-4 there are a plurality of capsules 112, and a plurality of capsules 112 are disposed on the same side of the base plate 111, and each of the capsules 112 is away from the base disk 111.
  • a sleeve 113 is disposed on one side, and the connecting bracket 12 is provided with a plurality of connecting legs 121 respectively corresponding to the plurality of sleeves 113.
  • connection bracket 12 After the connection bracket 12 is moved for one cycle, the plurality of capsules 112 on the airbag 11 successively complete an intake compression-exhaustion process, the working efficiency is greatly improved, the displacement is greatly increased, the structure is compact, the volume is small, and the energy consumption is small. .
  • a design in which only one capsule 112 is provided on one airbag 11 and a plurality of airbags 11 can be disposed in the pump 100 is not excluded.
  • the structure is compact and the airtightness is better.
  • the number of the capsules 112 provided on one airbag 11 is not particularly limited.
  • the base disk 111 is formed in a circular shape, or the base disk 111 may be formed as a polygon having a number of sides equal to the number of the capsules 112, and the plurality of capsules 112 are evenly spaced around the center line of the base disk 111. Arrange.
  • Such an airbag 11 has a compact overall structure and an aesthetic appearance, and only one air outlet hole is provided at the time of exhausting, which greatly simplifies the structure of the member (such as the cover 2) that cooperates with the airbag 11.
  • the capsule 112 is formed in a cylindrical shape, and the sleeve 113 is formed as a circular tube coaxial with the capsule 112, which is not only easy to process but also easy to demold.
  • the airbag 11 further includes a valve piece 1141.
  • the valve piece 1141 is disposed on a side of the base plate 111 away from the connection bracket 12, and the valve piece 1141 is disposed adjacent to the opening 1122.
  • At least one valve piece 1141 is correspondingly disposed at the opening 1122 of each air chamber 1120.
  • the plurality of capsules 112 are evenly spaced around the center line of the base disk 111, and the corresponding plurality of valve pieces 1141 surround the base disk 111.
  • the center lines are evenly spaced apart.
  • the air bag 11 further includes: a valve tube 114 disposed on the base plate 111, and the tube wall of the valve tube 114 is provided with a plurality of directions facing away from the capsule 112.
  • a valve tube 114 disposed on the base plate 111, and the tube wall of the valve tube 114 is provided with a plurality of directions facing away from the capsule 112.
  • each of the fractures 1142 penetrates in the thickness direction of the pipe wall, and a portion between the adjacent two fractures 1142 of the valve pipe 114 forms a valve piece 1141.
  • the valve piece 1141 is thus arranged to be both aesthetically pleasing and easy to process and demold.
  • a reinforcing rib 115 is connected between each valve piece 1141 and the base plate 111, thereby improving the connection strength between the valve piece 1141 and the base plate 111.
  • the arrangement of the ribs 115 prevents the valve piece 1141 from being deformed, and ensures that the valve piece 1141 is easily reset when the exhaust valve is not working, thereby enhancing the sealing function.
  • the pump's air tightness is enhanced and there is no excessive noise.
  • the airbag 11 is an integrally formed member, that is, the valve tube 114, the base plate 111, the capsule 112, and the sleeve 113 are integrally formed, and the airbag 11 as a whole may be made of a flexible member such as rubber.
  • the connecting bracket 12 includes: an intermediate disc 122 and a connecting disc 123.
  • the connecting disc 123 and the connecting leg 121 are respectively disposed on opposite sides of the intermediate disc 122, wherein the connecting disc
  • the connecting hole 1231 is provided on the 123, and the connecting hole 1231 is used to connect the power component of the pump 100.
  • the attachment bracket 12 is provided with a projection 124 on a side facing the airbag 11, and a plurality of attachment legs 121 are spaced apart around the projection 124. That is, the bump 124 is disposed at an intermediate position of the connecting bracket 12 toward the side of the airbag 11, and the arrangement of the bump 124 helps to limit the range of movement of the connecting bracket 12, the specific working principle of which will be pumped 100 below. The structure description is continued, and will not be repeated here.
  • the connecting leg 121 is formed in a cylindrical shape equal to the inner diameter of the sleeve 113. In this way, the connecting leg 121 can completely block the sleeve 113, so that the air chamber 1120 can only communicate with the second through hole 1211 through the first through hole 1121 after deformation, and the air leakage of the air bag 11 is prevented from causing insufficient exhaust pressure.
  • the connecting leg 121 defines an inlet cavity 1210 that is open toward the direction away from the air bag 11, and a second through hole 1211 is formed in the bottom wall of the inlet cavity 1210.
  • the connecting legs 121 are formed in a pot shape, which can greatly reduce the weight of the connecting bracket 12, and the large-area bottom can block the first through hole 1121.
  • the capsule 112 is not limited to a cylindrical shape, and the sleeve 113 and the corresponding connecting leg 121 are not limited to the circular cylinder, as long as the connecting leg 121 can be fitted with the sleeve 113 and is active.
  • the capsule 112 can be squeezed and drawn.
  • the piston assembly 1 further includes an intake check valve 13 disposed in the air bag 11 to control the flow of gas from the second through hole 1211 toward the air chamber 1120.
  • the intake check valve 13 is arranged to avoid gas backflow and to ensure exhaust pressure.
  • the intake check valve 13 may be disposed in the air chamber 1120, and the intake check valve 13 may coincide with the first through hole 1121.
  • the piston assembly 1 according to the above embodiment of the present invention has few parts and is controllable in cost.
  • the piston assembly 1 realizes at least two configurations in which the second through hole 1211 and the first through hole 1121 are alternately connected and disconnected. These two specific embodiments are described below with reference to Figs.
  • FIG. 1 and 2 show the structure of a piston assembly 1 in a first embodiment of the present invention.
  • the piston assembly 1 includes an air bag 11 and a connecting bracket 12.
  • the airbag 11 In the direction from the airbag 11 to the connection bracket 12, the airbag 11 includes a valve piece 1141, a base disk 111, a capsule 112, and a sleeve which are sequentially disposed.
  • the tube 113 has three capsules 112.
  • the three capsules 112 are formed into a cylindrical shape of equal diameter.
  • the air chambers 1120 in the three capsules 112 are all circular chambers, and the three capsules 112 are equidistantly arranged.
  • the base plate 111 is formed in a substantially triangular shape, and three capsules 112 are respectively disposed at three corners of the base plate 111, and each corner of the base plate 111 is subjected to a circular arc transition process.
  • Each of the capsules 112 is open on the side facing the base plate 111 to form an air chamber 1120 between the openings 1122 of the three air chambers 1120.
  • the base plate 111 is provided with a valve tube 114 on the wall of the valve tube 114.
  • a plurality of fractures 1142 are provided, and a portion between adjacent two fractures 1142 of the valve tube 114 forms a valve piece 1141.
  • the valve tube 114 is provided with three fractures 1142 to form three valve pieces 1141, each valve piece 1141 is disposed corresponding to one air chamber 1120, and three fracture ports 1142 are respectively spaced by 120 degrees, each valve piece 1141 is symmetrical with respect to the center line L of the corresponding air chamber 1120 with respect to the valve tube 114.
  • a bottom portion of each of the air chambers 1120 is provided with a first through hole 1121, and each of the first through holes 1121 is disposed at a center of the valve tube 114 and a central connection L of the corresponding air chamber 1120.
  • a reinforcing rib 115 is connected between the inner side of each valve piece 1141 and the base disk 111.
  • a side of each of the capsules 112 remote from the base disk 111 is provided with a sleeve 113 formed as a circular tube, and the sleeve 113 is disposed coaxially with the capsule 112.
  • the outer peripheral bottom edge of the capsule 112 forms a circular arc transition
  • the bottom edge of the air chamber 1120 also forms a circular arc transition, which facilitates demolding of the airbag 11 during processing.
  • the bottom wall of the capsule 112 is connected to the sleeve 113 by a circular arc transition.
  • the attachment bracket 12 In the direction from the airbag 11 to the attachment bracket 12, the attachment bracket 12 includes a connection leg 121, an intermediate tray 122, and a lands 123 which are sequentially disposed, and the attachment bracket 12 is also provided with a projection 124 on the side facing the airbag 11.
  • the bumps 124 are located at intermediate positions of the three connecting legs 121, the bumps 124 are generally formed as tapered blocks, and the tops of the bumps 124 are formed in a hemispherical shape.
  • Each of the connecting legs 121 is formed in a cylindrical shape open toward a side away from the airbag 11, the outer diameter of each connecting leg being equal to the inner diameter of the corresponding sleeve 113, and the axial dimension of the connecting leg 121 being larger than the length of the sleeve 113 .
  • a second through hole 1211 is defined in the bottom wall of each connecting leg 121. The second through hole 1211 is offset from the first through hole 1121, so that when the connecting leg 121 is parallel to the axis of the sleeve 113, the connecting leg 121 can be completely Blocked.
  • the land 123 is located at a center position of the intermediate disk 122, and the land 123 corresponds to the bump 124.
  • the land 123 is formed in a substantially cylindrical shape, and the bottom wall of the land 123 is provided with a connecting hole 1231.
  • connection bracket 12 further includes a connection rib 125 connected between the land 123 and the opening of the connection leg 121.
  • connection rib 125 connected between the land 123 and the opening of the connection leg 121.
  • the connecting bracket 12 when the connecting bracket 12 is movable, the second through hole 1211 and the first through hole 1121 are alternately oppositely and phase-displaced, and the second through hole 1211 is opposite to the first through hole 1121.
  • the second through hole 1211 can be introduced into the air chamber 1120 through the first through hole 1121; when the second through hole 1211 is misaligned with the first through hole 1121, the connecting leg 121 blocks the first through hole 1121.
  • the first through hole 1121 of the bottom wall of the air chamber 1120 and the second through hole 1211 of the corresponding connecting leg 121 are not coincident, that is, as shown in FIG. 2, when the center line of the capsule 112 When in a state parallel to the center line of the connecting leg 121, the capsule 112 is neither pushed inward nor pulled outward, and the first through hole 1121 and the second through hole 1211 are staggered.
  • the intake valves of the capsule 112 are kept closed, that is, the intake valve of the airbag 11 is configured to be normally closed, thereby ensuring the controllability of the pump 100 jet. .
  • 3 and 4 show the structure of the piston assembly 1 in the second embodiment of the present invention.
  • the structure of the piston assembly 1 is substantially the same as that of the piston assembly 1 of the first embodiment shown in FIGS. 1 and 2, and the same portions will not be described herein.
  • the piston assembly 1 in this embodiment further includes an intake check valve 13, so that the one-way flow of the airbag 11 during intake can be ensured, and the airbag 11 can be prevented from leaking.
  • the first through hole 1121 of the airbag 11 can always be disposed opposite to the second through hole 1211 of the connecting leg 121. That is to say, if there is no intake check valve 13 in the second embodiment, the air chamber 1120 always communicates with the outer side of the connecting bracket 12 through the second through hole 1211. In the second embodiment, after the intake check valve 13 is provided, the intake control can be completed in conjunction with the action of the connection bracket 12.
  • the intake check valve 13 blocks the first through hole 1121, and the gas in the air chamber 1120 can only be discharged from the exhaust valve; when the connecting leg 121 pulls the bag In the case of the body 112, the volume of the air chamber 1120 becomes larger, and the air pressure in the air chamber 1120 is smaller than the air pressure outside the connecting bracket 12. At this time, the gas outside the connecting bracket 12 can open the air inlet check valve 13 and circulate to the air chamber 1120 to complete the air suction operation.
  • the first through hole 1121 of the bottom wall of the air chamber 1120 is different from the first through hole 1121 of the second embodiment, and the second connecting hole 121 is the second in the first embodiment.
  • the position of the through hole 1211 and the second through hole 1211 on the connecting leg 121 of the second embodiment is also different.
  • the number, shape and position of the first through holes 1121 in the piston assembly 1 are not particularly limited.
  • the number, shape and position of the second through holes 1211 on the connecting legs 121 are not particularly limited.
  • the structural form of the piston assembly 1 that alternately communicates and disconnects between the second through hole 1211 and the first through hole 1121 is not limited to the above two embodiments.
  • the piston assembly 1 can be disposed substantially the same as the piston assembly 1 of the first embodiment, except that the second through hole 1211 and the first through hole 1121 can be set to be always in the third embodiment.
  • the action of the connection bracket 12 can also complete the intake control.
  • the connecting leg 121 presses the capsule 112
  • the volume of the air chamber 1120 decreases, and the air pressure increases.
  • the bottom wall of the capsule 112 is pressed against the connecting leg 121 under the air pressure in the air chamber 1120, thereby A through hole 1121 is blocked, and the gas in the air chamber 1120 can only be discharged from the exhaust valve;
  • the connecting leg 121 pulls the capsule 112 the volume of the air chamber 1120 becomes larger, the air pressure decreases, and the air pressure in the air chamber 1120 is smaller than
  • the second through hole 1121 is pushed up to the bottom wall of the capsule 112, and the pressure difference forms a gap between the bottom wall of the capsule 112 and the connecting leg 121.
  • the gas outside the connecting bracket 12 can flow to the air chamber 1120 through the gap. Complete the inhalation action.
  • the deformation and extrusion of the capsule 112 is more easily realized, which can avoid wear and improve the service life of the product.
  • a pump 100 in accordance with an embodiment of the present invention will now be described with reference to Figs.
  • the pump 100 includes a motor 3, a base 4, an eccentric assembly 5, a piston assembly 1, an airbag seat 6, and an upper cover 2, the piston assembly 1 being In the above-described embodiment of the present invention, the piston assembly 1 for pumping, the eccentric assembly 5 is connected to the connecting bracket 12.
  • the upper cover 2 on the pump 100, the valve piece 1141, the air bag 11, the air bag seat 6, the connecting bracket 12, the eccentric assembly 5, the base 4 and the motor 3 Set from top to bottom.
  • the base 4 is disposed on the end surface of the motor 3, and the motor shaft 31 passes through the bottom wall of the base 4 and projects into the base 4.
  • the eccentric assembly 5 is disposed in the base 4.
  • the eccentric assembly 5 includes an eccentric wheel 51 and an inclined shaft 52 disposed on the eccentric wheel 51.
  • the eccentric wheel 51 is coupled to the motor shaft 31, and the connection point of the inclined shaft 52 and the eccentric wheel 51 is offset from the eccentric wheel.
  • the oblique axis 52 gradually extends obliquely toward the central axis of rotation of the eccentric wheel 51 in a direction away from the eccentric wheel 51.
  • the inclined shaft 52 and the eccentric 51 may be independent workpieces respectively; and as shown in FIG. 7, the inclined shaft 52 may be formed as an integrally formed piece with the eccentric 51.
  • the airbag holder 6 is attached to the base 4, and the airbag seat 6 is provided with a fitting hole 61 penetrating in the thickness direction.
  • the air bag 11 of the piston assembly 1 is disposed on the air bag seat 6, and the capsule 112 of the air bag 11 is placed in the fitting hole 61, and the sleeve 113 can pass through the corresponding fitting hole 61.
  • the connecting bracket 12 of the piston assembly 1 is disposed between the airbag seat 6 and the eccentric assembly 5, the connecting bracket 12 is connected to the inclined shaft 52, and the connecting leg 121 on the connecting bracket 12 is engaged with the sleeve 113.
  • the one end of the inclined shaft 52 away from the eccentric wheel 51 is fitted in the connecting hole 1231 of the connecting bracket 12 .
  • the central position of the side of the airbag base 6 facing the bracket 12 can be provided with a limiting slot 62.
  • the protrusion 124 of the connecting bracket 12 can extend into the limiting slot 62, which can limit the range of motion of the connecting bracket 12. .
  • the upper cover 2 is attached to the airbag base 6 to sandwich the base disk 111 of the airbag 11 between the upper cover 2 and the airbag seat 6.
  • An air outlet 21 is provided in the upper cover 2, and the valve piece 1141 of the airbag 11 projects into the air outlet 21 .
  • the outer periphery of the upper cover 2 extends downwardly from the first fastening member 23, and the outer periphery of the base 4 is provided with a second fastening member 41, and the first fastening member 23 is fastened to the second fastening member. 41, so that the upper cover 2 can compact the airbag seat 6 and the airbag 11.
  • the airbag 11 and the connecting bracket 12 constitute the piston assembly 1, and the structure of the piston assembly 1 has been described in the above embodiment, and will not be described herein.
  • the first through hole 1121 of the airbag 11 and the second through hole 1211 of the connecting bracket 12 can cooperate with the air pumping movement, and the cooperation with the air inlet check valve 13 can prevent the gas from flowing back.
  • the working process of the pump 100 is: after the motor 3 is energized, the connecting bracket 12 is oscillated according to a certain rule by the eccentric component 5.
  • the three connecting legs 121 disposed on the connecting bracket 12 reciprocate in a direction toward the airbag 11 and a direction away from the airbag 11, respectively.
  • the first connecting leg 121 is active at the lowest point, and the first through hole 1121 of the airbag 11 is
  • the second through hole 1211 of the connecting leg 121 communicates, the air pressure in the air chamber 1120 of the corresponding air bag 11 is low, and the gas in the base 4 can be sucked into the air chamber 1120.
  • the second connecting leg 121 is at the intermediate position, the third connecting leg 121 is at the highest position, and the air in the capsule 112 corresponding to the third connecting leg 121 is compressed, and the air chamber 1120 of the capsule 112 is in the air.
  • the check valve 13 is restricted from being discharged from the first through hole 1121, and at this time, the compressed gas is discharged through the air outlet port 21.
  • the compressed gas pushes the corresponding valve piece 1141, and the compressed gas forms a high pressure gas jet. If the motor 3 has a higher rotational speed, the three air chambers 1120 are charged, and the exhaust speed will be faster. The larger the air volume of the air jet, the higher the air outlet pressure.
  • the gas when the pump 100 inhales, the gas can enter the base 4 from the inlet of the upper cover 2 (not shown), and as the gas pressure increases, the gas pushes open the air chamber 1120 through the second through hole 1211. At the bottom, the gas enters the air chamber 1120 through the first through hole 1121, and the valve piece 1141 of the valve tube 114 abuts against the inner peripheral wall of the air outlet 21 to complete the inflation process.
  • the airbag 11 compresses the air, the pressure is increased at this time, and a gap is formed between the valve piece 1141 and the inner peripheral wall of the air outlet passage 21, so that the gas can be discharged from the air outlet passage 21.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality” means two or more unless otherwise stated.
  • the terms “installation”, “connected”, “connected”, and “fixed” are to be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood in a specific case by those skilled in the art.
  • the description of the terms “embodiment”, “example” and the like means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. .
  • the schematic representation of the above terms does not necessarily mean the same embodiment or example.
  • the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Abstract

一种用于泵浦的活塞组件(1)及泵浦。活塞组件(1)包括：气囊(11)和可活动的连接支架(12)。气囊(11)包括：基座盘(111)、囊体(112)和套管(113)，基座盘(111)和套管(113)分别设在囊体(112)的相对两侧，囊体(112)内限定出气腔(1120)，气腔(1120)在朝向基座盘(111)的一侧贯通以形成开口(1122)，气腔(1120)的底壁上设有连通套管(113)的第一通孔(1121)。连接支架(12)上设有连接支脚(121)，连接支脚(121)上设有第二通孔(1211)，连接支脚(121)伸入到套管(113)内，在连接支架(12)活动时，第二通孔(1211)与第一通孔(1121)之间可交替地相连通和相断开。

Description

用于泵浦的活塞组件及泵浦 技术领域
本发明涉及泵体设备技术领域，尤其是涉及一种用于泵浦的活塞组件及泵浦。
背景技术
一般的隔膜泵，零件多，成本高。尤其是泵的上盖上需要设置多个进气阀，还要设置多个进气口，上盖整体结构过于复杂。
发明内容
本申请旨在提供一种用于泵浦的活塞组件，该活塞组件的结构设置有利于减小泵浦的零件数量，降低成本。
本发明的另一个目的在于提供一种具有上述活塞组件的泵浦。
根据本发明的用于泵浦的活塞组件，包括：气囊，所述气囊包括：基座盘、囊体和套管，所述基座盘和所述套管分别设在所述囊体的相对两侧，所述囊体内限定出气腔，所述气腔在朝向所述基座盘的一侧贯通以形成开口，所述气腔的底壁上设有连通所述套管的第一通孔；可活动的连接支架，所述连接支架上设有连接支脚，所述连接支脚上设有第二通孔，所述连接支脚伸入到所述套管内，在所述连接支架活动时，所述第二通孔与所述第一通孔之间可交替地相连通和相断开。
根据本发明实施例的用于泵浦的活塞组件，通过将连接支架上连接支脚一件两用，不仅能压缩气体，还能控制进气，减少了泵浦的零件数量，降低了成本。而且将进气阀设置在连接支架上，也可简化上盖的结构，降低加工难度。
在一些实施例中，在所述连接支架活动时，所述第二通孔与所述第一通孔之间可交替地相对接和相错位，且在所述第二通孔与所述第一通孔相对接时、所述第二通孔可通过所述第一通孔向所述气腔进气，在所述第二通孔与所述第一通孔相错位时、所述连接支脚封堵所述第一通孔。
在另一些实施例中，活塞组件还包括进气单向阀，所述进气单向阀设在所述气囊内以控制所述气体从所述第二通孔朝向所述气腔单向流动。
在一些实施例中，所述连接支脚内限定出朝向远离所述气囊的方向敞口的进口腔，所述第二通孔形成在所述进口腔的底壁上。
在一些实施例中，所述囊体为多个，多个所述囊体均设在所述基座盘的同一侧，每个所述囊体的远离所述基座盘的一侧均设有一个所述套管，所述连接支架上设有分别与 多个所述套管一一对应的多个所述连接支脚。
在一些实施例中，所述连接支架在朝向所述气囊的一侧设有凸块，所述多个连接支脚环绕所述凸块间隔开设置。
在一些实施例中，所述连接支架包括：中间盘和连接盘，所述连接盘和所述连接支脚分别设在所述中间盘的相对两侧，其中，所述连接盘上设有连接孔，多个所述连接支脚环绕所述连接盘间隔开设置。
在一些实施例中，所述基座盘形成为圆形或者形成为边数等于所述囊体的数量的多边形，多个所述囊体环绕所述基座盘的中心线均匀间隔开排布。
根据本发明的泵浦，所述泵浦包括电机、底座、偏心组件、活塞组件、气囊座和上盖，所述活塞组件为根据本发明上述实施例所述的用于泵浦的活塞组件，所述偏心组件与所述连接支架相连。
根据本发明实施例的泵浦，通过将连接支架上连接支脚一件两用，不仅能压缩气体，还能控制进气，减少了泵浦的零件数量，降低了成本。而且将进气阀设置在连接支架上，也可简化上盖的结构，降低加工难度。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本发明一个实施例的活塞组件的俯视结构图；
图2是图1中沿A-A方向剖视图；
图3是根据本发明另一个实施例的活塞组件的俯视结构图；
图4是图3中沿B-B方向剖视图；
图5是本发明一个实施例的泵浦在气囊某一囊体拉伸时示意图；
图6是图5所示泵浦在气囊某一囊体挤压时示意图；
图7是本发明另一实施例的泵浦在气囊某一囊体拉伸时示意图。
附图标记：
泵浦100、
活塞组件1、
气囊11、基座盘111、囊体112、气腔1120、第一通孔1121、开口1122、套管113、阀管114、阀片1141、断口1142、加强筋115、
连接支架12、连接支脚121、进口腔1210、第二通孔1211、中间盘122、连接盘123、连接孔1231、凸块124、连接肋125、
进气单向阀13、
上盖2、出气孔道21、第一卡扣件23、
电机3、电机轴31、底座4、第二卡扣件41、偏心组件5、偏心轮51、斜轴52、
气囊座6、配合孔61、限位槽62。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面参考图1-图7描述根据本发明实施例的用于泵浦的活塞组件1。
根据本发明实施例的用于泵浦的活塞组件1，如图1-图4所示，包括：气囊11和可活动的连接支架12。
参照图2和图4，气囊11包括：基座盘111、囊体112和套管113，基座盘111和套管113分别设在囊体112的相对两侧，囊体112内限定出气腔1120，气腔1120在朝向基座盘111的一侧贯通以形成开口1122，气腔1120的底壁上设有连通套管113的第一通孔1121。
参照图2和图4，连接支架12上设有连接支脚121，连接支脚121上设有第二通孔1211，连接支脚121伸入到套管113内。当连接支脚121朝向气囊11的方向运动时，连接支脚121可挤压囊体112；当连接支脚121朝向远离气囊11的方向运动时，连接支脚121可通过与套管113之间的摩擦力拉动套管113，从而可拉拔囊体112。图2中第二通孔121沿套管113的轴向上贯通连接支脚121，但是第二通孔121的延伸方向也可不限于此，只要第二通孔121与套管113的外部连通即可。
这里需要说明的是，气囊11的囊体112为柔性件，例如囊体112可由橡胶或者塑料制成，因此气囊11被挤压时可变形且改变气腔1120的容积大小。当泵浦100工作时，动力元件带动连接支架12往复运动，连接支架12上连接支脚121可交替地挤压和拉拔囊体112，从而交替地改变囊体112内的气腔1120的容积大小。拉拔囊体112时，气腔1120容积变大完成吸入动作；挤压囊体112时，气腔1120容积变小完成排气动作。因此连接支架12的往复运动，可实现气囊11的该囊体112往复进行吸入气体和排出气体的目的，从而可源源不断地驱动气体朝向特定方向流动。
现有技术的隔膜泵中，为控制气囊进气，通常将进气口设在泵浦的上盖上，然后再在上盖上设置控制进气的进气阀。但是一旦囊体数量较多时上盖上需要设置多个进气阀以及对应的多个进气口，导致上盖整体结构过于复杂，且零件数量较多，成本较高。
而本发明实施例中，通过在气腔1120底壁上设置第一通孔1121，连接支脚121上设置第二通孔1211，在连接支架12活动时，第二通孔1211与第一通孔1121之间可交替地相连通和相断开。
也就是说本发明实施例中，利用连接支架12活动时连接支脚121的动作变化，以及利用囊体112在被挤压、拉拔时囊体112的变形，使得气腔1120的第一通孔1121可交替地导通和封堵，从而完成气囊11的进气控制。连接支架12的连接支脚121不仅具有挤压和拉拔囊体112的作用，连接支脚121还充当着气囊11的进气阀。
根据本发明实施例的用于泵浦的活塞组件1，通过将连接支架12上连接支脚121一件两用，不仅能压缩气体，还能控制进气，减少了泵浦100的零件数量，降低了成本。而且将进气阀设置在连接支架12上，也可简化上盖2的结构，降低加工难度。
在一些实施例中，如图1-图4所示，囊体112为多个，多个囊体112均设在基座盘111的同一侧，每个囊体112的远离基座盘111的一侧均设有一个套管113，连接支架12上设有分别与多个套管113一一对应的多个连接支脚121。
这样，连接支架12活动一个周期后，气囊11上多个囊体112均先后完成一次进气压缩-排气过程，工作效率大大提高，排气量大增，结构紧凑，体积小，能耗小。
当然，本发明实施例中也不排除一个气囊11上仅设有一个囊体112，而且泵浦100内可设置多个气囊11的设计方案。当然，从整体结构出发的话，一个气囊11上设置多个囊体112时结构紧凑性及密闭性更佳，这里对一个气囊11上设置的囊体112数量不作具体限制。
在一些实施例中，基座盘111形成为圆形，或者基座盘111可形成为边数等于囊体112的数量的多边形，多个囊体112环绕基座盘111的中心线均匀间隔开排布。这样的气囊11，整体结构紧凑、美观，而且在排气时也仅设置一个出气孔道，可大大简化与气囊11相配合的部件(如上盖2)结构。
具体地，囊体112形成为圆柱形，套管113形成为与囊体112同轴的圆管，这样不仅加工容易，而且容易脱模。
具体地，如图2所示，气囊11还包括阀片1141，阀片1141设在基座盘111的远离连接支架12的一侧，阀片1141邻近开口1122设置。
每个气腔1120的开口1122处对应设有至少一个阀片1141，多个囊体112环绕基座盘111的中心线均匀间隔开排布，对应的多个阀片1141环绕基座盘111的中心线均匀间隔开排布。
在一些具体示例中，如图2和图4所示，气囊11还包括：设在基座盘111上的阀管114，阀管114的管壁上设有多个朝向远离囊体112的方向贯通的断口1142，每个断口1142在管壁的厚度方向上贯通，阀管114的相邻两个断口1142之间的部分形成阀片1141。这样设置阀片1141，既美观又易加工脱模。
可选地，如图2和图4所示，每个阀片1141与基座盘111之间连接有加强筋115，从而提高阀片1141与基座盘111之间的连接强度。加强筋115的设置可防止阀片1141变形，保证排气阀不工作时阀片1141容易复位，从而起到加强密封的作用。而且泵浦气密性加强了，就不会产生过多噪音。
具体地，气囊11为一体成型件，即阀管114、基座盘111、囊体112及套管113为一体成型件，气囊11整体可由橡胶等柔性件制成。
在一些实施例中，如图2和图4所示，连接支架12包括：中间盘122和连接盘123，连接盘123和连接支脚121分别设在中间盘122的相对两侧，其中，连接盘123上设有连接孔1231，连接孔1231用于连接泵浦100的动力元件。这里连接支架12的活动原理将在下文泵浦100的说明中细述，这里不再赘述。
当囊体112为多个时，连接支脚121也为多个，多个连接支脚121环绕连接盘123间隔开设置。也就是就，连接盘123设在连接支架12的远离气囊11一侧的中间位置处。
在一些实施例中，如图2和图4所示，连接支架12在朝向气囊11的一侧设有凸块124，多个连接支脚121环绕凸块124间隔开设置。也就是就，凸块124设在连接支架12的朝向气囊11一侧的中间位置处，凸块124的设置有助于限制连接支架12的活动幅度，其具体工作原理将在下文泵浦100的结构说明中再续，这里不再赘述。
更具体地，连接支脚121形成为与套管113内径相等的圆柱形。这样，连接支脚121可完全堵住套管113，使得气腔1120仅可在变形后通过第一通孔1121与第二通孔1211连通，避免气囊11漏气导致排气压力不足。
在一些实施例中，如图2和图4所示，连接支脚121内限定出朝向远离气囊11的方向敞口的进口腔1210，第二通孔1211形成在进口腔1210的底壁上。通俗地讲，连接支脚121形成锅形，可大大减轻连接支架12的重量，而大面积锅底又能封堵住第一通孔1121。
当然，本发明实施例中，囊体112也不局限于圆柱形，套管113及对应的连接支脚121也不局限于圆管圆柱，只要连接支脚121能与套管113适配且在活动时能挤压、拉拔囊体112即可。
在一些实施例中，如图3所示，活塞组件1还包括进气单向阀13，进气单向阀13设在气囊11内，以控制气体从第二通孔1211朝向气腔1120单向流动，进气单向阀13的设置可避免气体回流，保证排气压力。
具体地，进气单向阀13可设在气腔1120里，进气单向阀13可与第一通孔1121重合。
根据本发明上述实施例的活塞组件1，零件少，成本可控。
在本发明实施例中，在连接支架12活动时，活塞组件1实现第二通孔1211与第一通孔1121之间可交替地相连通和相断开的结构形式至少有两种。下面参照图1-图4描述这两种具体实施方式。
图1和图2展示了本发明实施例一中活塞组件1的结构。
在图1和图2的实施例中，活塞组件1包括气囊11和连接支架12。在从气囊11到连接支架12的方向上，气囊11包括依次设置的阀片1141、基座盘111、囊体112和套 管113，囊体112为三个，三个囊体112形成为等径的圆柱形，三个囊体112内的气腔1120均为圆形腔，三个囊体112等距排布。基座盘111形成为大体三角形，三个囊体112分别设在基座盘111的三个角上，基座盘111的每个角均作圆弧过渡处理。
每个囊体112在朝向基座盘111的一侧敞开形成气腔1120，在三个气腔1120的开口1122之间，基座盘111上设有阀管114，阀管114的管壁上设有多个断口1142，阀管114的相邻两个断口1142之间的部分形成阀片1141。在图1和图2中，阀管114上设有三个断口1142以形成三个阀片1141，每个阀片1141对应一个气腔1120设置，三个断口1142分别间距120度，每个阀片1141均相对阀管114与相应气腔1120的中心连接线L对称。在图1中，每个气腔1120的底部均设有一个第一通孔1121，每个第一通孔1121均设在阀管114中心与相应气腔1120的中心连接L上。每个阀片1141的内侧均与基座盘111之间连接有加强筋115。
每个囊体112的远离基座盘111的一侧设有一个套管113，套管113形成为圆管，套管113与囊体112同轴设置。
具体地，如图2所示，囊体112的外周底部边缘形成圆弧过渡，气腔1120底部边缘也形成圆弧过渡，这样可方便气囊11加工时脱模。另外，囊体112的底壁与套管113连接处之间通过圆弧过渡连接。
在从气囊11到连接支架12的方向上，连接支架12包括依次设置的连接支脚121、中间盘122和连接盘123，连接支架12还在朝向气囊11的一侧设有凸块124。其中，连接支脚121为三个，三个连接支脚121分别对应气囊11的三个套管113设置。凸块124位于三个连接支脚121的中间位置处，凸块124大体形成为锥形块，凸块124的顶部形成为半球形。
每个连接支脚121形成为朝向远离气囊11的一侧敞开的筒形，每个连接脚的外径与相应的套管113的内径相等，连接支脚121的轴向尺寸大于套管113的管长。每个连接支脚121的底壁上均设有第二通孔1211，第二通孔1211与第一通孔1121相错开，从而连接支脚121在与套管113轴线平行时，连接支脚121可完全封堵住。
连接盘123位于中间盘122的中心位置处，连接盘123与凸块124相对应。连接盘123形成为大体圆柱形，连接盘123的底壁上设有连接孔1231。
连接支架12还包括连接肋125，连接肋125连接在连接盘123与连接支脚121的敞口之间。在图2的实施例中，连接肋125有三个，每个连接支脚121的敞口与连接盘123之间分别设有一个连接肋125，连接肋125形成为三角形。
在实施例一中，在连接支架12活动时，第二通孔1211与第一通孔1121之间可交替地相对接和相错位，且在第二通孔1211与第一通孔1121相对接时、第二通孔1211可通过第一通孔1121向气腔1120进气；在第二通孔1211与第一通孔1121相错位时、连接支脚121封堵第一通孔1121。
具体地，如图2所示，当气囊11上囊体112处于放松状态，且连接支脚121与相应 的套管113完全配合时，气腔1120底壁的第一通孔1121与对应的连接支脚121上第二通孔1211是不重合的，即如图2所示，当囊体112的中心线处于与连接支脚121的中心线处于相平行的状态时，囊体112既不被向内挤也不被向外拉，此时第一通孔1121与第二通孔1211相错开。这样，当气囊11与连接支架12保持平行状态时，囊体112的进气阀均保持关闭状态，即气囊11的进气阀被构造成常闭状态，保证了泵浦100喷气的可控性。
图3和图4展示了本发明实施例二中活塞组件1的结构。
在图3和图4的实施例二中，活塞组件1的结构与图1和图2所示实施例一的活塞组件1的结构基本相同，相同的部分这里不再赘述。所不同的是，如图3所示，该实施例中活塞组件1还包括进气单向阀13，从而可保证气囊11进气时单向流动，避免气囊11漏气。
而且在实施例二中，气囊11上第一通孔1121可始终与连接支脚121上第二通孔1211正对设置。也就是说，实施例二中如果没有进气单向阀13的话，气腔1120始终通过第二通孔1211与连接支架12外连通。实施例二在设置了进气单向阀13后，可配合连接支架12的动作完成进气控制。
具体而言，当连接支脚121挤压囊体112时，进气单向阀13封堵第一通孔1121，气腔1120内气体仅可从排气阀处排出；当连接支脚121拉拔囊体112时，气腔1120容积变大，气腔1120内气压小于连接支架12外气压，此时连接支架12外气体可打开进气单向阀13而向气腔1120流通，完成吸气动作。
另外，如图2和图4所示，实施例一中气腔1120底壁的第一通孔1121与实施例二中第一通孔1121的位置不同，实施例一中连接支脚121上第二通孔1211与实施例二连接支脚121上的第二通孔1211的位置也不同。通过两个实施例对比可知，活塞组件1中第一通孔1121的数量、形状、位置可不作具体限定，连接支脚121上第二通孔1211的数量、形状、位置也可不作具体限定。
当然，本发明实施例中，实现第二通孔1211与第一通孔1121之间可交替地相连通和相断开的活塞组件1结构形式不限于上述两个实施例。
例如，在实施例三中活塞组件1可设置成与实施例一的活塞组件1大体相同，所不同的是，实施例三中可将第二通孔1211与第一通孔1121设置成始终是相错位的，连接支架12的动作也能完成进气控制。
具体而言，当连接支脚121挤压囊体112时，气腔1120容积减小、气压增大，囊体112的底壁在气腔1120内气压压制下贴合在连接支脚121上，从而第一通孔1121被封堵，气腔1120内气体仅可从排气阀处排出；当连接支脚121拉拔囊体112时，气腔1120容积变大、气压减小，气腔1120内气压小于连接支架12外气压，连接支架12外气体 通过第二通孔1121顶到囊体112底壁，压差使得囊体112的底壁与连接支脚121之间形成缝隙，此时连接支架12外气体可通过该处缝隙向气腔1120流通，完成吸气动作。
综上，本发明实施例的活塞组件1中，囊体112的变形挤压更加容易实现，可以避免磨损，提高产品的使用寿命。
下面参考图1-图7描述根据本发明实施例的泵浦100。
根据本发明实施例的泵浦100，如图5和图6所示，泵浦100包括电机3、底座4、偏心组件5、活塞组件1、气囊座6和上盖2，活塞组件1为根据本发明上述实施例的用于泵浦的活塞组件1，偏心组件5与连接支架12相连。
在一些实施例中，在图5和图6及图2中，泵浦100上的上盖2、阀片1141、气囊11、气囊座6、连接支架12、偏心组件5、底座4和电机3从上至下依次设置。
其中，底座4设在电机3的端面上，电机轴31穿过底座4的底壁并伸入到底座4中。偏心组件5设在底座4内，偏心组件5包括偏心轮51和设在偏心轮51上的斜轴52，偏心轮51与电机轴31相连，斜轴52与偏心轮51的连接点偏离偏心轮51的旋转中心轴线。其中，在朝向远离偏心轮51的方向上，斜轴52逐渐朝向偏心轮51的旋转中心轴线倾斜延伸。这里，如图5和图6所示，斜轴52和偏心轮51可分别为独立加工件；又如图7所示，斜轴52可与偏心轮51形成为一体成型件。
气囊座6盖合在底座4上，气囊座6上设有在厚度方向上贯通的配合孔61。活塞组件1中气囊11设在气囊座6上，气囊11的囊体112置于配合孔61中，套管113可穿过相应的配合孔61。活塞组件1中连接支架12设在气囊座6与偏心组件5之间，连接支架12与斜轴52相连，且连接支架12上的连接支脚121与套管113相配合。
其中，斜轴52的远离偏心轮51的一端配合在连接支架12的连接孔1231内。另外，气囊座6的朝向连接支架12的一侧的中心位置处可设有限位槽62，连接支架12的凸块124可伸入到限位槽62中，这样可限制连接支架12的活动幅度。
上盖2盖合在气囊座6上，以将气囊11的基座盘111夹设在上盖2和气囊座6之间。上盖2上设有出气孔道21，气囊11的阀片1141伸入到出气孔道21内。在图5的示例中，上盖2的外周向下延伸出第一卡扣件23，底座4的外周设有第二卡扣件41，第一卡扣件23扣合在第二卡扣件41上，从而上盖2可压实气囊座6及气囊11。
具体地，气囊11与连接支架12构成活塞组件1，活塞组件1结构已由上述实施例中说明，这里不再赘述。其中，气囊11的第一通孔1121和连接支架12的第二通孔1211可配合打气运动，与进气单向阀13的配合可防止气体回流。
泵浦100的工作过程为：电机3通电后，连接支架12受偏心组件5作用按一定规律摆动。设置于连接支架12上三个连接支脚121分别沿着朝向气囊11的方向和远离气囊11的方向作往返运动。
设若在某瞬间，第一个连接支脚121活动在最低点，气囊11上第一通孔1121与该 连接支脚121上第二通孔1211连通，相应气囊11的气腔1120内气压低，底座4内气体可被吸入气腔1120内。此时，第二个连接支脚121处于中间位置，第三个连接支脚121处于最高位置，第三个连接支脚121对应的囊体112内空气被压缩，该囊体112的气腔1120因进气单向阀13的限制而无法从第一通孔1121处排出，此时压缩气通过出气孔道21排出。压缩气体推开相应阀片1141，压缩气体形成高压气喷出。如果电机3转速愈高，三个气腔1120进气，排气速度也会越快，喷气出气量越大，出气气压也越高。
其中，当泵浦100吸气时，气体可从上盖2进气口(图未标出)进入底座4内，随着气体压力的增加，气体经由第二通孔1211推开气腔1120的底部，气体经由第一通孔1121进入气腔1120内，此时阀管114的阀片1141紧贴出气孔道21的内周壁，实现充气过程。当气囊11压缩空气时，此时压力增大，阀片1141与出气孔道21的内周壁之间产生间隙，从而气体可从出气孔道21排出。
在本发明的描述中，需要理解的是，术语“中心”、“高度”、“厚度”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
在本说明书的描述中，参考术语“实施例”、“示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (9)

  1. 一种用于泵浦的活塞组件，其特征在于，包括：
    气囊，所述气囊包括：基座盘、囊体和套管，所述基座盘和所述套管分别设在所述囊体的相对两侧，所述囊体内限定出气腔，所述气腔在朝向所述基座盘的一侧贯通以形成开口，所述气腔的底壁上设有连通所述套管的第一通孔；
    可活动的连接支架，所述连接支架上设有连接支脚，所述连接支脚上设有第二通孔，所述连接支脚伸入到所述套管内，在所述连接支架活动时，所述第二通孔与所述第一通孔之间可交替地相连通和相断开。
  2. 根据权利要求1所述的用于泵浦的活塞组件，其特征在于，在所述连接支架活动时，所述第二通孔与所述第一通孔之间可交替地相对接和相错位，且在所述第二通孔与所述第一通孔相对接时、所述第二通孔可通过所述第一通孔向所述气腔进气，在所述第二通孔与所述第一通孔相错位时、所述连接支脚封堵所述第一通孔。
  3. 根据权利要求1或者2所述的用于泵浦的活塞组件，其特征在于，还包括进气单向阀，所述进气单向阀设在所述气囊内以控制所述气体从所述第二通孔朝向所述气腔单向流动。
  4. 根据权利要求1-3中任一项所述的用于泵浦的活塞组件，其特征在于，所述连接支脚内限定出朝向远离所述气囊的方向敞口的进口腔，所述第二通孔形成在所述进口腔的底壁上。
  5. 根据权利要求1-4中任一项所述的用于泵浦的活塞组件，其特征在于，所述囊体为多个，多个所述囊体均设在所述基座盘的同一侧，每个所述囊体的远离所述基座盘的一侧均设有一个所述套管，所述连接支架上设有分别与多个所述套管一一对应的多个所述连接支脚。
  6. 根据权利要求5所述的用于泵浦的活塞组件，其特征在于，所述连接支架在朝向所述气囊的一侧设有凸块，所述多个连接支脚环绕所述凸块间隔开设置。
  7. 根据权利要求5或者6所述的用于泵浦的活塞组件，其特征在于，所述连接支架包括：中间盘和连接盘，所述连接盘和所述连接支脚分别设在所述中间盘的相对两侧，其中，所述连接盘上设有连接孔，多个所述连接支脚环绕所述连接盘间隔开设置。
  8. 根据权利要求5-7中任一项所述的用于泵浦的活塞组件，其特征在于，所述基座盘形成为圆形或者形成为边数等于所述囊体的数量的多边形，多个所述囊体环绕所述基座盘的中心线均匀间隔开排布。
  9. 一种泵浦，所述泵浦包括电机、底座、偏心组件、活塞组件、气囊座和上盖，其特征在于，所述活塞组件为根据权利要求1-8中任一项所述的用于泵浦的活塞组件，所述偏心组件与所述连接支架相连。
PCT/CN2016/109068 2016-11-01 2016-12-08 用于泵浦的活塞组件及泵浦 WO2018082155A1 (zh)

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JP2005146942A (ja) * 2003-11-13 2005-06-09 Mitsumi Electric Co Ltd 小型ポンプ
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US20030031571A1 (en) * 2001-08-10 2003-02-13 Muneharu Yamakawa Pump provided with diaphragms
JP2003056467A (ja) * 2001-08-10 2003-02-26 Mitsumi Electric Co Ltd 小型ポンプ
JP2005146942A (ja) * 2003-11-13 2005-06-09 Mitsumi Electric Co Ltd 小型ポンプ
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