WO2024098884A1 - 气泵 - Google Patents

气泵 Download PDF

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Publication number
WO2024098884A1
WO2024098884A1 PCT/CN2023/114381 CN2023114381W WO2024098884A1 WO 2024098884 A1 WO2024098884 A1 WO 2024098884A1 CN 2023114381 W CN2023114381 W CN 2023114381W WO 2024098884 A1 WO2024098884 A1 WO 2024098884A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
air pump
pump according
grille
toggle member
Prior art date
Application number
PCT/CN2023/114381
Other languages
English (en)
French (fr)
Other versions
WO2024098884A9 (zh
Inventor
汪春节
钟继鑫
张泽民
叶伟林
刘林生
张朴
Original Assignee
珠海格力电器股份有限公司
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 CN202211385965.8A external-priority patent/CN115822930A/zh
Priority claimed from CN202211385076.1A external-priority patent/CN115681096A/zh
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2024098884A1 publication Critical patent/WO2024098884A1/zh
Publication of WO2024098884A9 publication Critical patent/WO2024098884A9/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

Definitions

  • the present application relates to the technical field of inflation and/or exhaust equipment, and in particular to an air pump.
  • the air pump includes a motor, a transmission assembly, a piston rod, a one-way valve and a cylinder. Its principle is that the motor drives the transmission assembly to make the piston rod reciprocate in the cylinder to realize the inflation function; the piston rod is provided with a shrapnel on one side of the cylinder. When pumping air, the outside gas pushes the shrapnel from the other side of the piston rod and enters the cylinder. When inflating air, the piston rod shrapnel closes, the gas in the cylinder is squeezed and opens the one-way valve at the end of the cylinder to enter the inflatable object.
  • the air pump has a single function, which is only an inflation function, but no exhaust function, and cannot meet the needs of users.
  • the air pump in the prior art does not have an air extraction function.
  • the present application provides an air pump, comprising: a shell, on which is provided an air suction port and an air charging port; a cylinder, which is arranged in the shell, and has an air intake port and an air exhaust port, wherein the air suction port is connected to the air intake port, and the air exhaust port is connected to the air charging port.
  • the air suction port is provided with a thread or a buckle, and the air suction port can be connected to the air nozzle.
  • the air pump includes an air nozzle, which is detachably connected to the inflation port, and the air nozzle can also be detachably connected to the exhaust port.
  • an air inlet is provided on the shell, and the air inlet is communicated with the air intake port of the cylinder.
  • the air inlet is provided with an opening and closing mechanism, and the opening and closing mechanism is used to open or close the air inlet.
  • the opening and closing mechanism includes: a fixed door, which is installed in the air inlet and has first air holes arranged at intervals; a movable door, which is rotatably connected to the fixed door through a rotating shaft and has second air holes; the movable door has a first position in which the second air holes are staggered with the first air holes and the first air holes are closed, and the movable door has a second position in which the second air holes are connected to the first air holes, and the movable door switches between the first position and the second position by rotating.
  • the opening and closing mechanism also includes: a knob, which is drivingly connected to the movable door, and the movable door is driven to rotate by the knob; a third vent hole is provided on the knob, and the third vent hole is connected to the second vent hole.
  • both the fixed door and the movable door are fan-shaped door structures with multiple blades.
  • a negative pressure area is formed inside the shell, the negative pressure area is connected to the air suction port of the cylinder, and the air inlet and the air exhaust port are both connected to the negative pressure area.
  • the cylinder comprises a cylinder base, a negative pressure area is formed between the cylinder base and the shell, and an air intake port is arranged on the cylinder base.
  • the cylinder base is provided with limiting ribs and limiting grooves
  • the shell is provided with limiting bosses; the limiting bosses are clamped in the limiting grooves; the cylinder base, limiting ribs, limiting grooves, limiting bosses and the shell cooperate to form a negative pressure zone.
  • a limiting groove is arranged on the cylinder base, and a limiting boss is arranged on the shell; the limiting boss is clamped in the limiting groove.
  • the cylinder includes a transmission assembly connected to the motor and a piston rod for performing work, the transmission assembly is drivingly connected to the piston rod, and both the transmission assembly and the piston rod are arranged in the negative pressure area.
  • the air inlet is arranged adjacent to the air extraction port, and the diameter of the air inlet is larger than the diameter of the air extraction port.
  • the opening and closing mechanism includes: a sliding grille, which is movably arranged on the housing, the sliding grille is located at the air inlet, and the sliding grille opens or closes the air inlet by moving.
  • the sliding grille is provided with vents; the sliding grille has a first position in which the vents are staggered with the air inlet and the air inlet is closed; the sliding grille has a second position in which the vents are connected with the air inlet and the air inlet is opened, and the sliding grille switches between the first position and the second position by moving.
  • the air inlet includes at least one grille hole arranged on the outer shell, and the grille hole and the vent hole are arranged correspondingly; when the sliding grille is in a first position, all the grille holes are staggered with the vent hole; when the sliding grille is in a second position, all the grille holes are connected with the vent hole.
  • the opening and closing mechanism further comprises: a toggle member, which is drivingly connected to the sliding grille, and the toggle member drives the sliding grille to move by moving.
  • the toggle member is located at the air exhaust port, and the toggle member has an abutment surface that cooperates with the air nozzle; when the air nozzle is installed to the air exhaust port, the air nozzle abuts against the abutment surface of the toggle member and drives the toggle member to move; when the air nozzle is fixed at the air exhaust port, the toggle member drives the sliding grille to switch to the first position.
  • the toggle member has a pushing position and a default position; when the toggle member is in the pushing position, the sliding grille is in the first position; when the toggle member is in the default position, the sliding grille is in the second position.
  • the opening and closing mechanism also includes: an elastic return member, one end of which is connected to the toggle member and the other end is connected to the housing, and the force of the elastic return member is used to reset the toggle member to a default position of the toggle member.
  • the toggle member has a matching protrusion
  • the sliding grid has a matching hole
  • the matching protrusion is inserted into the matching hole.
  • the matching protrusion has a first inclined surface; the inner wall of the matching hole has a second inclined surface, the first inclined surface and the second inclined surface abut and drive to match, and the toggle member drives the sliding grille to move through the driving match of the first inclined surface and the second inclined surface.
  • the toggle member is movably connected to the housing.
  • the toggle member has an avoidance hole for the air nozzle to pass through.
  • the inflation port of the air pump is connected to the exhaust port of the cylinder to achieve basic inflation function.
  • the exhaust port of the air pump is connected to the suction port of the cylinder.
  • the exhaust port can inhale gas under the work of the cylinder, and the exhaust port is aligned with the items that need to be exhausted to exhaust air and play the function of exhausting air.
  • the air pump can achieve both inflation and exhaust functions. It can not only inflate commonly used items such as car tires, bicycle tires and basketballs, but also can be used in storage bags that need to be exhausted, or to exhaust air from inflatable tents, swimming rings and other items, effectively reducing the volume of the items and facilitating storage.
  • FIG1 is a partial structural schematic diagram of an air pump with an air inlet opened according to an embodiment of the present application
  • FIG2 is a partial structural schematic diagram of the air pump of an embodiment of the present application with the air inlet closed;
  • FIG3 is a schematic diagram of the internal structure of the air pump of an embodiment of the present application with the air inlet opened;
  • FIG4 is a schematic diagram of the internal structure of the air pump with the air suction port opened according to an embodiment of the present application
  • FIG5 is an exploded schematic diagram of a partial structure of an air pump according to an embodiment of the present application.
  • FIG6 is a schematic diagram of the internal structure of a partial structure of an air pump according to an embodiment of the present application.
  • FIG7 is a schematic structural diagram of a cylinder base of an air pump according to an embodiment of the present application.
  • FIG8 is an exploded schematic diagram of an air pump according to an embodiment of the present application.
  • FIG9 is a schematic structural diagram of an air pump when the air nozzle of the air pump according to an embodiment of the present application is connected to the air charging port;
  • FIG10 is a schematic diagram of the structure of the matching between the air nozzle and the air suction port of the air pump according to an embodiment of the present application;
  • FIG11 is a schematic structural diagram of an air pump when the air nozzle of the air pump according to an embodiment of the present application is connected to the air charging port;
  • FIG12 is a schematic diagram of the internal structure of an air pump according to another embodiment of the present application.
  • FIG13 is a cross-sectional schematic diagram of an air pump in another embodiment of the present application in a pumping function
  • FIG14 is another cross-sectional schematic diagram of an air pump in another embodiment of the present application in the air pumping function
  • FIG15 is a schematic diagram of an exploded structure of an air pump according to another embodiment of the present application.
  • FIG16 is a schematic diagram of the structural coordination of the sliding grille and the toggle member of the air pump according to another embodiment of the present application.
  • FIG17 is a cross-sectional schematic diagram of the sliding grille and the toggle member of FIG16 ;
  • FIG18 is a schematic diagram of the external structure of an air pump in an inflation function according to another embodiment of the present application.
  • FIG. 19 is a schematic diagram of the external structure of an air pump in another embodiment of the present application in the air pumping function.
  • an air pump including a shell 10 and a cylinder 20.
  • the shell 10 is provided with an air suction port 11 and an air charging port 12, and the air suction port 11 can be used to extract air from an object;
  • the cylinder 20 is arranged in the shell 10, and the cylinder 20 has an air intake port 21 and an air exhaust port 22, the air suction port 11 is connected to the air intake port 21, and the air exhaust port 22 is connected to the air charging port 12.
  • the air pump's inflating port is connected to the cylinder's exhaust port, which can achieve basic inflation functions.
  • the air pump's exhaust port is connected to the cylinder's suction port. Under the work of the cylinder, the exhaust port can suck in gas, and the exhaust port is aimed at the items that need to be exhausted to exhaust air and play the function of exhausting air.
  • the air pump can achieve both inflation and exhaust functions. It can not only inflate commonly used items such as car tires, bicycle tires, and basketballs, but also be used in storage bags that need to be exhausted, or exhaust air from inflatable tents, swimming rings and other items, effectively reducing the volume of items and facilitating storage.
  • the air suction port can provide gas to the cylinder without exhausting the gas.
  • the air port enters into the cylinder, which means that the air exhaust port can be used as both an air exhaust port and an air intake port for the cylinder, thus having multiple uses.
  • the air suction port 11 is provided with a thread or a buckle, and the air suction port 11 can be connected to the air nozzle 30.
  • the structure provided at the air suction port facilitates the connection of the air nozzle (including the air pipe and the pipe joint), so that the air suction function can be realized by directly connecting the air nozzle to the air suction port, which is simple and practical.
  • the air suction port is provided with an internal thread, and the specific shape is shown in Figures 1 and 3.
  • the air pump includes an air nozzle 30, which is detachably connected to the inflation port 12, and the air nozzle 30 can also be detachably connected to the air extraction port 11.
  • the inflation port 12 and the air extraction port 11 are both provided with internal threads, and the joints of the air nozzle 30 are provided with matching external threads.
  • the air nozzle can be installed on the inflation port 12 and the air extraction port 11 by screwing, and can be disassembled according to specific needs.
  • the connection method of the air nozzle can also be in the form of a snap buckle, or a magnetic suction method, which is not specifically limited here, as long as the method can achieve installation and disassembly.
  • the housing 10 is provided with an air inlet 13, which is connected to the air intake port 21 of the cylinder 20.
  • another air inlet 13 is provided.
  • the advantage of such a setting is that the larger air intake volume required for inflation can be met, and the air inlet 13 can expand the gas intake volume that can be extracted by the air intake port of the cylinder.
  • the air inlet 13 is provided with an opening and closing mechanism, which is used to open or close the air inlet 13.
  • the opening and closing mechanism is to cooperate with the inflation function and the exhaust function.
  • the opening and closing mechanism opens the air inlet 13, and the air inlet 13 introduces external air into the air inlet 21 of the cylinder 20 for the cylinder to be inflated, so that the air intake meets the needs of the air pump.
  • the opening and closing mechanism closes the air inlet 13, and the exhaust port is aimed at the object to be exhausted at this time to exhaust air, and air can only enter from the exhaust port, so that the air inlet of the cylinder can only extract gas from the exhaust port, so as to realize the exhaust function of the exhaust port.
  • the opening and closing mechanism includes a fixed door 41 and a movable door 42, the fixed door 41 is installed in the air inlet 13, the fixed door 41 has at least two first air holes 41a arranged at intervals; the movable door 42, the movable door 42 is rotatably connected to the fixed door 41 through a rotating shaft, the movable door 42 has second air holes 42a that match the shape, size and number of the first air holes 41a; the movable door 42 has a first position that staggers the second air holes 42a with the first air holes 41a and closes the first air holes 41a, the movable door 42 has a second position that connects the second air holes 42a with the first air holes 41a, and the movable door 42 switches between the first position and the second position by rotating.
  • the movable door changes the opening and closing of the air inlet 13 by rotating, and the movable door cooperates with the fixed door to realize the corresponding functions of the opening and closing mechanism.
  • the fixed door 41 and the movable door 42 are both fan-shaped door structures with multiple blades, and the blades of the fan-shaped door overlap or stagger to achieve the effect of staggered communication of the vents.
  • the fixed plate and the movable door can also choose other shapes and through-hole shapes, and the second vent 42a is consistent with the first vent 41a in shape, which can be fan-shaped, round hole, long waist hole, and evenly arranged in the circumference of the fan-shaped door.
  • the opening and closing mechanism further includes a knob 43, which is drivingly connected to the movable door 42, and the knob 43 drives the movable door 42 to rotate by rotating; a third vent 43a is provided on the knob 43, and the third vent 43a is connected to the second vent 42a, see Figures 8 and 9 for details.
  • the shape of the third vent can also be selected and changed, and arranged in an array, and there is an air gap between the knob and the movable door. The user can operate the knob to rotate the movable door, which is simple and quick.
  • the knob When the inflation function is needed, the knob is in the default position, the third vent hole 43a is connected to the second vent hole 42a, the second vent hole 42a is connected to the first vent hole 41a, and the air inlet is in an open and connected state, see Figure 9.
  • the knob When the exhaust function is needed, the knob is rotated at a certain angle to drive the movable door, so that the movable door switches to the first position, and the air inlet is closed, see Figure 10.
  • the knob 43 rotates 90°.
  • the knob rotation angle can also be 15°, 30°, or 60°, which is not specifically limited here.
  • the rotation angle is set according to the number and arrangement of the first vent holes 41a and the second vent holes 42a.
  • the opening and closing mechanism includes a sliding grille 31, which is movably arranged on the housing 10, and is located at the air inlet 13.
  • the sliding grille 31 opens or closes the air inlet 13 by moving.
  • the sliding grille 31 can be arranged on the housing 10 by a slide rail structure to achieve sliding, and of course, it can also be moved by other existing methods.
  • the sliding grille 31 is provided with a vent hole 31a; the sliding grille 31 has a first position in which the vent hole 31a is staggered with the air inlet 13 and closes the air inlet 13; the sliding grille 31 has a second position in which the vent hole 31a is connected with the air inlet 13 and opens the air inlet 13, and the sliding grille 31 switches between the first position and the second position by moving. As shown in FIGS. 15-16 , the sliding grille 31 opens or closes the air inlet 13 by sliding, and the shape of the air inlet and the shape of the vent hole 31a match each other, and the shape is not specifically limited.
  • the air inlet 13 includes a plurality of groups of grille holes provided on the housing 10, and the grille holes are provided corresponding to the vent holes 31a; when the sliding grille 31 is in the first position, all the grille holes are staggered with the vent holes 31a; when the sliding grille 31 is in the second position, all the grille holes are connected with the vent holes 31a.
  • the arrangement of the grille holes corresponds to the arrangement of the vent holes 31a.
  • the grille holes can be round holes or other shapes. The total flow area of all the grille holes can meet the air intake needs of the air pump.
  • the opening and closing mechanism further includes a toggle member 32, which is movably connected to the housing 10, and is drivingly connected to the sliding grille 31.
  • the toggle member 32 drives the sliding grille 31 to move by moving.
  • the shape and structure of the toggle member 32 are not specifically limited.
  • the toggle member 32 can be a toggle structure that can be operated by a user. The user can manually operate the toggle member, so that the sliding grille can be moved to switch between the first position and the second position, thereby meeting the functional requirements of inflation or degassing.
  • the toggle member 32 is located at the air suction port 11.
  • the toggle member 32 has an abutting surface 321 that cooperates with the air nozzle 30.
  • the air nozzle 30 When the air nozzle 30 is installed on the air suction port 11, the air nozzle 30 abuts against the abutting surface 321 of the toggle member 32, and the toggle member 32 is driven to move by moving the air nozzle 30.
  • the toggle member 32 drives the sliding grille 31 to switch to the first position. In other words, when the user needs the inhalation function, the air nozzle will be installed on the air suction port.
  • the air nozzle directly forms a linkage with the toggle member 32, driving the toggle member to move and switching the sliding grille to the first position.
  • the air nozzle 30 is fixed to the air suction port 11, the air inlet is closed, and only the air suction port is opened.
  • the gas After the air cylinder of the air pump is started, the gas only enters the air suction port of the cylinder from the air suction port.
  • the pressure at the air suction port is very large, which is fully capable of pumping the items to be pumped to a near vacuum state.
  • the air nozzle 30 When the air nozzle 30 is fixed at the inflation port, the air inlet is opened, the air exhaust port is opened, and after the air pump cylinder is started, the gas enters the air intake port of the cylinder from the air exhaust port and the air inlet, and the gas is discharged from the inflation port through the cylinder to inflate the object.
  • the moving direction of the toggle member 32 is parallel to the installation direction of the air nozzle 30 to the air suction port 11.
  • the installation direction of the air nozzle 30 through the buckle or threaded connection is the direction of arrow A shown in Figure 13, and the moving direction of the toggle member 32 pushed by the air nozzle is also the direction of arrow A.
  • the toggle member 32 has a pushing position and a default position, and the toggle member 32 moves between the pushing position and the default position.
  • the toggle member 32 is in the pushing position, the sliding grille 31 is located in the first position; when the toggle member 32 is in the default position, the sliding grille 31 is located in the second position. In this way, it can be ensured that the force on the toggle member 32 is more uniform and the movement of the toggle member 32 is more stable.
  • the air pump is in the inflation function, the air inlet is opened and the toggle member is in the default position.
  • the opening and closing mechanism further includes an elastic restoring member 33, one end of which is connected to the toggle member 32 and the other end of which is connected to the housing 10.
  • the force of the elastic restoring member 33 is used to reset the toggle member 32 to the default position of the toggle member 32.
  • the function of the return member 33 is that when the air nozzle is removed from the air suction port, the elastic return member 33 resets the toggle member 32 to the default position, the air inlet is reopened, and the air pump returns to the default inflation mode.
  • Such a structural setting is also convenient for users to use, and they will not be unable to use the inflation function of the air pump due to forgetting to reset the toggle member 32.
  • the elastic return member 33 is a spring, and the spring can be sleeved on the outer periphery of the air suction port, and the air suction port is a round hole type.
  • the elastic return member 33 is compressed, so that the toggle member 32 moves from the default position to the pushing position, so that the sliding grille 31 is located in the second position and slides to the first position, and the air inlet 13 is closed.
  • the toggle member 32 has a matching protrusion 322, and the matching protrusion 322 has a first inclined surface 51.
  • the sliding grille 31 has a matching hole 31b, and the inner wall of the matching hole 31b has a second inclined surface 52.
  • the matching protrusion 322 is inserted into the matching hole 31b, and the first inclined surface 51 and the second inclined surface 52 abut and drive to match.
  • the toggle member 32 drives the sliding grille 31 to move through the driving match of the first inclined surface 51 and the second inclined surface 52.
  • the match of the first inclined surface 51 and the second inclined surface 52 makes the moving direction B of the toggle member 32 and the moving direction C of the sliding grille 31 form an angle, and the angle is, for example, 90°, that is, in the vertical direction.
  • the arrangement of the two structures can be more closely fitted to the housing of the air pump, the structural layout can save more space, the structure is simpler and stronger, and maintenance is quick.
  • the air nozzle When the user needs to inhale, the air nozzle is installed to the air suction port 11 by screwing, the elastic return member 33 is compressed, and the toggle member 32 moves from the default position to the pushing position, so that the sliding grille 31 connected to the toggle member 32 is slidably connected along the shell, so that the sliding grille 31 slides from the second position to the first position, at this time, the air vent 31a is staggered with the air inlet 13, and the air inlet 13 is closed; when the user does not need to inhale, unscrew the air nozzle to make the air nozzle detach from the air suction port 11, because it is not compressed by the air nozzle, the elastic return member 33 rebounds from the compressed state, and the toggle member 32 moves from the pushing position to the default position, so that the sliding grille 31 connected to the toggle member 32 is slidably connected along the shell, so that the sliding grille 31 slides from the first position to the second position, at this time, the air vent 31a is connected with the air inlet 13, and the air in
  • the toggle member 32 has an avoidance hole 32a for the air nozzle 30 to pass through.
  • the outer periphery of the avoidance hole 32a is the abutment surface 321, which is annular and just abuts against the step of the pipe joint of the air nozzle.
  • the shape of the avoidance hole 32a can be circular or other shapes, mainly to match the shape of the air nozzle docking part, so that the air nozzle is convenient for docking with the air outlet 11.
  • a negative pressure zone 50 is formed inside the housing 10.
  • the negative pressure zone 50 is connected to the air intake port 21 of the cylinder 20, and the air inlet 13 and the air exhaust port 11 are both connected to the negative pressure zone 50.
  • the negative pressure zone 50 refers to a part of the internal space, which is under negative pressure when the cylinder 20 is working.
  • the negative pressure zone can be a regular space or the space of other adjacent parts. The specific shape depends entirely on the internal structure of the air pump. As long as it is a space area that is connected to the air intake port 21 and is connected to the air intake port and the air exhaust port at the same time, it can be called a negative pressure zone.
  • the gas Regardless of whether the gas enters from the air inlet and/or the air exhaust port, it will first enter the negative pressure zone and then enter the cylinder.
  • the role of the negative pressure zone is to form a semi-enclosed soundproof room at the negative pressure zone, which effectively reduces the noise generated when the cylinder is working.
  • the cylinder 20 includes a cylinder base 23, a negative pressure area 50 is formed between the cylinder base 23 and the housing 10, and an air inlet 21 is provided on the cylinder base 23.
  • the cylinder base 23 is provided with a piston, a connecting rod, a gear and other structures of the cylinder, which are basic components of the cylinder. Since the shape of the cylinder base has many forms, as long as a negative pressure area connected to the air inlet is formed between the cylinder base and the housing, it belongs to the implementation mode that can be realized by the present application.
  • the cylinder base 23 is provided with a limiting rib 231 and a limiting groove 232
  • the housing 10 is provided with a limiting boss 14; the limiting boss 14 is snapped into the limiting groove 232; the cylinder base 23, the limiting rib 231, the limiting groove 232, the limiting boss 14 and the housing cooperate to form a negative pressure area 50.
  • the snap fit between the limiting boss 14 and the limiting groove 232 can not only form a seal in the negative pressure area, but also form a guiding and fixing effect.
  • a limiting groove 232 is provided on the cylinder base 23, and a limiting boss 14 is provided on the housing; the limiting boss 14 is snapped into the limiting groove 232.
  • the snap-fit between the limiting boss 14 and the limiting groove 232 can guide and fix the housing during installation.
  • one of the cylinder base 23 or the housing 10 is provided with a groove, such as the cylinder base 23 is provided with a groove, and the housing 10 is provided with an assembly structure that cooperates with the groove; or the housing 10 is provided with a groove, and the cylinder base 23 cooperates with the groove.
  • the assembly structure, thereby, the cylinder base 23, the groove, the limit groove 232, the limit boss 14 and the housing 10 cooperate to form a negative pressure area 50.
  • the air pump further includes a seal (not shown in the figure), the seal is installed in the groove, and the cylinder base 23, the groove, the seal, the limit groove 232, the limit boss 14 and the housing 10 cooperate to form a negative pressure area 50.
  • the cylinder 20 includes a transmission assembly 24 connected to the motor and a piston rod 25 that performs work, the transmission assembly 24 is drivingly connected to the piston rod 25, and the transmission assembly 24 and the piston rod 25 are both arranged in the negative pressure area. In this way, air will not leak from the position of the transmission assembly and the piston rod, and the air tightness is better.
  • the air inlet 13 is arranged adjacent to the air extraction port 11, and the diameter of the air inlet 13 is larger than the diameter of the air extraction port 11.
  • the air inlet 13 and the air extraction port 11 are arranged adjacent to each other, so that the user can easily find the air extraction port, and the air inlet can be rotated on one side at the same time, which is convenient and quick; and the appearance is also more delicate and beautiful.
  • the diameter of the air inlet 13 is larger, which can meet the air intake volume for inflation; while the diameter of the air extraction port is relatively small, so that when the cylinder work is constant, the negative pressure value of the air extraction port is increased, so that the air extraction is faster.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

一种气泵包括外壳(10)、气缸(20)。外壳(10)上设置有抽气口(11)和充气口(12)，气缸(20)设置在外壳(10)内，气缸(20)具有吸气口(21)和排气口(22)，抽气口(11)与吸气口(21)连通，排气口(22)与充气口(12)连通。该气泵具有充气和抽气功能。

Description

气泵
相关申请
本申请要求2022年11月07日申请的，申请号为202211385965.8，名称为“充气泵”的中国专利申请以及2022年11月07日申请的，申请号为202211385076.1，名称为“充气泵”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及充气和/或抽气设备技术领域，具体而言，涉及一种气泵。
背景技术
随着社会的发展和科学技术的进步，人们的物质文化生活水平得到了很大的提升，目前许多年轻人爱好户外生活、开车或者骑行旅游，难免会有轮胎气压不足的问题产生。充气泵因此也成为了刚需，传统充气泵体积大，携带不方便，大多数是放在固定位置进行使用，现如今市场中有便携式充气泵，体积小巧，携带十分方便，完全不占用空间。便携式充气泵成为了日常生活和户外活动中需要常备的电器。
充气泵包括马达、传动组件、活塞杆、单向阀以及气缸，其原理为马达带动传动组件使得活塞杆在气缸中往复运动，实现打气功能；其活塞杆在气缸内的一侧设有弹片，抽气时，外界气体由活塞杆另一侧推开弹片进入到气缸中，打气时，活塞杆弹片闭合，气缸中的气体被挤压并冲开气缸末端的单向阀进入到带充气物体中。
目前市面上的充气泵大多都只是利用充气泵的充气功能对物体充气，而其打气过程中另一端的吸气产生的负压则被忽略，且在目前许多年轻人爱好户外露营，难免会使用较多的充气物品，比如泳圈、橡皮船、充气帐篷、气垫床等，当这些物品在使用完毕后需要人工进行放气折叠收纳，而在无压力的状态下气体无法被完成排空，导致收纳不变。现有技术中，充气泵的功能单一，仅有充气功能，没有抽气功能，无法满足使用者的需求。
综上所述，现有技术中的充气泵没有抽气功能。
发明内容
本申请提供了一种气泵，包括：外壳，外壳上设置有抽气口和充气口；气缸，气缸设置在外壳内，气缸具有吸气口和排气口，抽气口与吸气口连通，排气口与充气口连通。
进一步地，抽气口设置有螺纹或者卡扣，抽气口可连接气嘴。
进一步地，气泵包括气嘴，气嘴可拆卸地连接在充气口上，气嘴同时能够可拆卸连接在抽气口上。
进一步地，外壳上设置有进气口，进气口与气缸的吸气口连通。
进一步地，进气口设置有开闭机构，开闭机构用于打开或者关闭进气口。
进一步地，开闭机构包括：固定门，固定门安装在进气口内，固定门具有间隔设置的第一通气孔；活动门，活动门通过转轴转动连接在固定门上，活动门具有第二通气孔；活动门具有使第二通气孔与第一通气孔错开并关闭第一通气孔的第一位置，活动门具有使第二通气孔与第一通气孔连通的第二位置，活动门通过转动在第一位置和第二位置之间切换。
进一步地，开闭机构还包括：旋钮，旋钮驱动连接在活动门上，旋钮通过转动带动活动门转动；旋钮上设置有第三通气孔，第三通气孔与第二通气孔连通。
进一步地，固定门和活动门均为具有多个扇叶的扇形门结构。
进一步地，外壳内部形成有负压区，负压区与气缸的吸气口连通，进气口和抽气口均与负压区连通。
进一步地，气缸包括气缸基座，气缸基座与外壳之间围成负压区，气缸基座上设置有吸气口。
进一步地，气缸基座上设置有限位筋和限位槽，外壳上设置有限位凸台；限位凸台卡接在限位槽内；气缸基座、限位筋、限位槽、限位凸台和外壳相配合形成负压区。
进一步地，气缸基座上设置限位槽，外壳上设置有限位凸台；限位凸台卡接在限位槽内。
进一步地，气缸包括与电机连接的传动组件和进行做功的活塞杆，传动组件与活塞杆驱动连接，传动组件与活塞杆均设置在负压区内。
进一步地，进气口与抽气口相邻设置，进气口的直径大于抽气口的直径。
进一步地，开闭机构包括：滑动格栅，滑动格栅可移动地设置在外壳上，滑动格栅位于进气口处，滑动格栅通过移动打开或者关闭进气口。
进一步地，滑动格栅设置有通气孔；滑动格栅具有使通气孔与进气口错开并关闭进气口的第一位置；滑动格栅具有使通气孔与进气口连通并打开进气口的第二位置，滑动格栅通过移动在第一位置和第二位置之间切换。
进一步地，进气口包括设置在外壳上的至少一个格栅孔，格栅孔与通气孔对应设置；在滑动格栅位于第一位置时，所有格栅孔与通气孔错开；在滑动格栅位于第二位置时，所有格栅孔与通气孔连通。
进一步地，开闭机构还包括：拨动件，拨动件与滑动格栅驱动连接，拨动件通过移动从而带动滑动格栅移动。
进一步地，拨动件位于抽气口处，拨动件具有与气嘴配合的抵接面；气嘴在安装至抽气口的过程中，气嘴抵接拨动件的抵接面上并带动拨动件移动；气嘴固定在抽气口的状态下，拨动件带动滑动格栅切换至第一位置。
进一步地，拨动件具有推动位置和默认位置；拨动件在推动位置时，滑动格栅位于第一位置；拨动件在默认位置时，滑动格栅位于第二位置。
进一步地，开闭机构还包括：弹性回复件，弹性回复件的一端与拨动件连接、另一端与外壳连接，弹性回复件的作用力用于将拨动件复位至拨动件的默认位置。
进一步地，拨动件具有配合凸起，滑动格栅具有配合孔，配合凸起插设在配合孔内。
进一步地，配合凸起上具有第一斜面；配合孔内壁具有第二斜面，第一斜面和第二斜面抵接并驱动配合，拨动件通过第一斜面和第二斜面的驱动配合以驱动滑动格栅移动。
进一步地，拨动件可移动地连接在外壳上。
进一步地，拨动件具有供气嘴穿过的避让孔。气泵的充气口与气缸的排气口连通，可以实现基本的充气功能。气泵的抽气口与气缸的吸气口连通，抽气口在气缸的做功下，能够将气体吸入，将抽气口对准需要抽气的物品进行抽气排空，起到抽气的功能。气泵可以实现充气和抽气两种功能，不仅可以对轿车轮胎、自行车轮胎和篮球等常用的物品进行充气，也可以使用在需要抽气的储存袋，或对充气帐篷、泳圈等物品进行抽气排空，有效减小物品体积，方便收纳。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其他的附图。
图1是本申请实施例的气泵的进气口打开的部分结构示意图；
图2是本申请实施例的气泵的进气口关闭的部分结构示意图；
图3是本申请实施例的气泵的进气口打开的内部结构示意图；
图4是本申请实施例的气泵的抽气口打开的内部结构示意图；
图5是本申请实施例的气泵的部分结构的分解示意图；
图6是本申请实施例的气泵的部分结构的内部结构示意图；
图7是本申请实施例的气泵的气缸基座的结构示意图；
图8是本申请实施例的气泵的分解示意图；
图9是本申请实施例的气泵的气嘴连接在充气口时的结构示意图；
图10是本申请实施例的气泵的气嘴与抽气口匹配的结构示意图；
图11是本申请实施例的气泵的气嘴连接在充气口时的结构示意图；
图12是本申请另一实施例的气泵的内部结构示意图；
图13是本申请另一实施例的气泵处于抽气功能的剖面示意图；
图14是本申请另一实施例的气泵处于抽气功能的另一剖面示意图；
图15是本申请另一实施例的气泵的结构分解示意图；
图16是本申请另一实施例的气泵的滑动格栅和拨动件的结构配合示意图；
图17是图16的滑动格栅和拨动件的剖面示意图；
图18是本申请另一实施例的气泵处于充气功能的外部结构示意图；
图19是本申请另一实施例的气泵处于抽气功能的外部结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
参见图1至图11所示，根据本申请的实施例，提供了一种气泵，包括外壳10和气缸20，外壳10上设置有抽气口11和充气口12，抽气口11可用于对物品抽气；气缸20设置在外壳10内，气缸20具有吸气口21和排气口22，抽气口11与吸气口21连通，排气口22与充气口12连通。
气泵的充气口与气缸的排气口连通，可以实现基本的充气功能。气泵的抽气口与气缸的吸气口连通，抽气口在气缸的做功下，能够将气体吸入，将抽气口对准需要抽气的物品进行抽气排空，起到抽气的功能。气泵可以实现充气和抽气两种功能，不仅可以对轿车轮胎、自行车轮胎和篮球等常用的物品进行充气，也可以使用在需要抽气的储存袋，或对充气帐篷、泳圈等物品进行抽气排空，有效减小物品体积，方便收纳。
需要说明的是，抽气口在不进行抽气的情况下，可以为气缸提供气体，气体可以由抽 气口进入到气缸内，也就说抽气口既能作为抽气口还能为气缸提供进气，一物多用。
在一实施例中，抽气口11设置有螺纹或者卡扣，抽气口11可连接气嘴30。抽气口处设置的结构方便气嘴(包括气管、管路接头)连接，这样直接将气嘴连接在抽气口上就能实现吸气功能，简捷又实用。本实施例中，抽气口设置有内螺纹，具体形状参见图1和图3。
结合图9和图10所示，气泵包括气嘴30，气嘴30可拆卸地连接在充气口12上，气嘴30同时能够可拆卸连接在抽气口11上。本实施例中，充气口12和抽气口11都设置有内螺纹，气嘴30的接头处都设置有匹配的外螺纹，气嘴可以通过旋拧的方式安装在充气口12和抽气口11上，并根据具体的需要进行拆卸。气嘴的连接方式也可以是卡扣的形式，或者磁吸方式都可以，此处不作具体限制，只要能够实现安装拆卸的方式都可以。
在需要充气功能时，将气嘴旋拧安装在充气口12上，此时抽气口11打开，参见图9。在需要抽气功能时，将气嘴旋拧安装在抽气口11上，此时充气孔12打开，参见图10。
在一实施例中，外壳10上设置有进气口13，进气口13与气缸20的吸气口21连通。在有抽气口11的前提下，另外设置一个进气口13，这样设置的好处是，满足充气所需的较大的进气量，进气口13能够扩大气缸吸气口能够抽取的气体进气量。
在一实施例中，进气口13设置有开闭机构，开闭机构用于打开或者关闭进气口13。开闭机构是为了配合充气功能和抽气功能的，在需要充气功能时，开闭机构打开进气口13，进气口13将外部空气引入到气缸20的吸气口21，供气缸进行充气使用，使进气量满足气泵的需要。在需要抽气功能时，开闭机构关闭进气口13，抽气口此时对准需要抽气的物品进行抽气，空气仅能从抽气口进入，使气缸的吸气口只能从抽气口抽取气体，以实现抽气口的抽气功能。
在一实施例中，结合图8所示，开闭机构包括固定门41和活动门42，固定门41安装在进气口13内，固定门41具有间隔设置的至少两个第一通气孔41a；活动门42，活动门42通过转轴转动连接在固定门41上，活动门42具有与第一通气孔41a形状、尺寸和数量相匹配的第二通气孔42a；活动门42具有使第二通气孔42a与第一通气孔41a错开并关闭第一通气孔41a的第一位置，活动门42具有使第二通气孔42a与第一通气孔41a连通的第二位置，活动门42通过转动在第一位置和第二位置之间切换。
活动门通过转动改变进气口13的开合，活动门与固定门共同配合实现开闭机构的相应功能。在本实施例中，固定门41和活动门42均为具有多个扇叶的扇形门结构，通过扇形门的扇叶相互重叠或者错开，以达到通气孔连通错开的效果。当然在其他图未示出的实施例中，固定板和活动门也可以选择其他形状和通孔形状，第二通气孔42a与第一通气孔41a形状一致，可以是扇形、圆孔、长腰孔，并以扇形门的周向均匀排布。
在一实施例中，，开闭机构还包括旋钮43，旋钮43驱动连接在活动门42上，旋钮43通过转动从而带动活动门42转动；旋钮43上设置有第三通气孔43a，第三通气孔43a与第二通气孔42a连通，具体参见图8和图9。第三通气孔的形状也可以进行选择变换，并通过阵列方式排布，旋钮和活动门之间还存在过气间隙。用户可以操作旋钮来转动活动门，简单快捷。
在需要充气功能时，旋钮处于默认位置，第三通气孔43a与第二通气孔42a连通，第二通气孔42a与第一通气孔41a连通，进气口处于打开连通状态，参见图9。在需要抽气功能时，旋转旋钮一定角度带动活动门，使得活动门切换至第一位置，进气口关闭，参见 图10。本实施例中旋钮43旋转90°，当然旋钮旋转的角度也可以是15°、30°、60°，这里不做具体限定，旋转的角度根据第一通气孔41a、第二通气孔42a的数量和排布方式进行设定。
在另一实施例中，参见图12-19，开闭机构包括滑动格栅31，滑动格栅31可移动地设置在外壳10上，滑动格栅31位于进气口13处，滑动格栅31通过移动打开或者关闭进气口13。滑动格栅31可以通过滑轨结构设置在外壳10上以实现滑动，当然也可以通过其他现有的方式实现移动设置。
滑动格栅31设置有通气孔31a；滑动格栅31具有使通气孔31a与进气口13错开并关闭进气口13的第一位置；滑动格栅31具有使通气孔31a与进气口13连通并打开进气口13的第二位置，滑动格栅31通过移动在第一位置和第二位置之间切换。结合图15-16所示，滑动格栅31通过滑动打开或者关闭进气口13，进气口的形状和通气孔31a的形状相互匹配，而且形状不作具体限制。
参见图15，进气口13包括设置在外壳10上的多组格栅孔，格栅孔与通气孔31a对应设置；在滑动格栅31位于第一位置时，所有格栅孔与通气孔31a错开；在滑动格栅31位于第二位置时，所有格栅孔与通气孔31a连通。格栅孔具有至少一组，每组格栅孔有至少一个格栅孔，格栅孔的排列方式和通气孔31a的排列方式对应，格栅孔可以圆孔，也可以是其他形状的格栅孔，所有格栅孔的过流面积总和，能够保证气泵的进气需要即可。
在一实施例中，开闭机构还包括拨动件32，拨动件32可移动地连接在外壳10上，拨动件32与滑动格栅31驱动连接，拨动件32通过移动从而带动滑动格栅31移动。拨动件32的形状结构不作具体限制，拨动件32可以是用户能够操作到的拨动结构，用户可以手动操作拨动件，这样可以移动滑动格栅在第一位置和第二位置之间切换，从而满足充气或者抽气的功能需要。
为了方便操作和提升使用体验，进一步优化结构，拨动件32位于抽气口11处，拨动件32具有与气嘴30配合的抵接面321；气嘴30在安装至抽气口11的过程中，气嘴30抵接拨动件32的抵接面321上，通过移动气嘴30从而带动拨动件32移动；气嘴30固定在抽气口11的状态下，拨动件32带动滑动格栅31切换至第一位置。也就是说，在用户需要吸气功能时，会将气嘴安装在抽气口上，在气嘴安装的过程中，气嘴就直接与拨动件32形成联动配合，带动拨动件移动同时使滑动格栅切换至第一位置。气嘴30固定在抽气口11的状态下，进气口关闭，只有抽气口打开，气泵的气缸启动后，气体仅由抽气口进入到气缸的吸气口，抽气口的压力很大，完全能够将待抽气物品抽至近真空状态等。气嘴30固定在充气口的状态下，进气口打开，抽气口打开，气泵的气缸启动后，气体由抽气口和进气口进入到气缸的吸气口，气体经过气缸从充气口排出，对物品进行充气。
在一实施例中，拨动件32的移动方向与气嘴30安装至抽气口11的安装方向平行，气嘴30通过卡扣或者螺纹连接的安装方向是图13所示的箭头A方向，在气嘴推动下的拨动件32的移动方向也是箭头A方向。拨动件32具有推动位置和默认位置，拨动件32在推动位置和默认位置之间移动。拨动件32在推动位置时，滑动格栅31位于第一位置；拨动件32在默认位置时，滑动格栅31位于第二位置。这样可以保证拨动件32的受力更加均匀，拨动件32的移动更加稳定。气泵在充气功能下，进气口打开，拨动件处于默认位置。
开闭机构还包括弹性回复件33，弹性回复件33的一端与拨动件32连接、另一端与外壳10连接，弹性回复件33的作用力用于将拨动件32复位至拨动件32的默认位置。弹性 回复件33的作用是，在气嘴从抽气口处取下时，弹性回复件33将拨动件32复位到默认位置，进气口重新打开，气泵回归到默认的充气模式。这样的结构设置也方便用户使用，不会因为忘记复位拨动件32而不能使用气泵的充气功能。在本实施例中，弹性回复件33为弹簧，弹簧可以套设在抽气口的外周，抽气口为圆孔型。在气嘴安装到抽气口11时压缩弹性回复件33，使得拨动件32从默认位置移动到推动位置，从而使得滑动格栅31位于第二位置滑动到第一位置，进气口13被关闭。
结合图16和图17所示，拨动件32具有配合凸起322，配合凸起322上具有第一斜面51。滑动格栅31具有配合孔31b，配合孔31b内壁具有第二斜面52，配合凸起322插设在配合孔31b内，第一斜面51和第二斜面52抵接并驱动配合，拨动件32通过第一斜面51和第二斜面52的驱动配合以驱动滑动格栅31移动。第一斜面51和第二斜面52的配合，使拨动件32的移动方向B和滑动格栅31的移动方向C形成夹角，夹角例如为90°，即垂直方向。这样可以让两个结构的布置更加贴合气泵的外壳，结构布局更加节省空间，结构也更简单且牢固，维修快捷。
当用户需要吸气时，气嘴通过旋拧安装到抽气口11，弹性回复件33压缩，拨动件32由默认位置移动到推动位置，使得与拨动件32连接的滑动格栅31沿着外壳滑动连接，使得滑动格栅31由第二位置滑动到第一位置，此时通气孔31a与进气口13错开，进气口13被关闭；当用户不需要吸气时，拧开气嘴使得气嘴脱离抽气口11，由于不受气嘴的压缩，弹性回复件33由压缩状态回弹，拨动件32由推动位置移动到默认位置，使得与拨动件32连接的滑动格栅31沿着外壳滑动连接，使得滑动格栅31由第一位置滑动到第二位置，此时通气孔31a与进气口13连通，进气口13被打开。
结合图15和图16，拨动件32具有供气嘴30穿过的避让孔32a。气嘴在安装至抽气口时，会穿过避让孔32a，避让孔32a外周就是抵接面321，抵接面呈环形，环形面正好与气嘴的管路接头的台阶抵接配合。避让孔32a的形状可以是圆形，也可以是其他形状，主要是要和气嘴对接部分的形状匹配，这样设置以便于气嘴与抽气口11对接。
结合图3至图6以及图12所示，外壳10内部形成有负压区50，负压区50与气缸20的吸气口21连通，进气口13和抽气口11均与负压区50连通。负压区50是指内部空间的一部分区域，该区域在气缸20做功时处于负压，负压区可以是规则的空间，也可以是相邻其他零部件的空间，具体的形状完全根据气泵内部结构而定，只要是与吸气口21连通且同时连通进气口和抽气口的空间区域，都可以叫做负压区。无论是从进气口和/或抽气口进入的气体都会先进入到负压区，然后进入到气缸中，负压区的作用是可以在负压区处形成半封闭式的隔音室，有效地降低气缸做功时产生的噪音。
在本实施例中，气缸20包括气缸基座23，气缸基座23与外壳10之间围成负压区50，气缸基座23上设置有吸气口21。结合图5至图7所示的结构，气缸基座23上设置有气缸的活塞、连杆、齿轮等结构，属于气缸的基本部件，由于气缸基座的形状是有很多形式的，因此只要气缸基座与外壳之间围成了与吸气口连通的负压区，都属于本申请能够实现的实施方式。
在一实施例中，气缸基座23上设置有限位筋231和限位槽232，外壳10上设置有限位凸台14；限位凸台14卡接在限位槽232内；气缸基座23、限位筋231、限位槽232、限位凸台14和外壳相配合形成负压区50。限位凸台14和限位槽232之间的卡接配合不仅可以形成负压区的密封，还能形成导向和固定作用。
气缸基座23上设置限位槽232，外壳上设置有限位凸台14；限位凸台14卡接在限位槽232内。限位凸台14和限位槽232之间的卡接配合能够使外壳在安装时进行导向和固定。
在本实施例之外的替代实施例中，气缸基座23或外壳10之一设置有凹槽，如气缸基座23设置有凹槽，外壳10设有与凹槽配合的装配结构；或者外壳10设置有凹槽，气缸基座23与凹槽配合的装配结构，由此气缸基座23、凹槽、限位槽232、限位凸台14和外壳10相配合形成负压区50。在一实施例中，气泵还包括密封件(图中未示)，密封件安装在凹槽中，气缸基座23、凹槽、密封件、限位槽232、限位凸台14和外壳10相配合形成负压区50。气缸20包括与电机连接的传动组件24和进行做功的活塞杆25，传动组件24与活塞杆25驱动连接，传动组件24与活塞杆25均设置在负压区内。这样空气也不会从传动组件以及活塞杆的位置处泄露，气密性更好。
为了进一步简化操作，进气口13与抽气口11相邻设置，进气口13的直径大于抽气口11的直径。进气口13和抽气口11相邻设置，可以让用户方便找到抽气口，而且同时在一侧旋转进气口即可，方便快捷；而且外观上也更加精致美观。另外，进气口13的直径更大，能够满足充气的进气量；而抽气口的直径相对较小，这样在气缸做功恒定的情况下，增加抽气口的负压值，使抽气更快。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (23)

  1. 一种气泵，其特征在于，包括：
    外壳(10)，所述外壳(10)上设置有抽气口(11)和充气口(12)；
    气缸(20)，所述气缸(20)设置在所述外壳(10)内，所述气缸(20)具有吸气口(21)和排气口(22)，所述抽气口(11)与所述吸气口(21)连通，所述排气口(22)与所述充气口(12)连通。
  2. 根据权利要求1所述的气泵，其特征在于，
    所述外壳(10)上设置有进气口(13)，所述进气口(13)与所述气缸(20)的吸气口(21)连通。
  3. 根据权利要求2所述的气泵，其特征在于，所述进气口(13)设置有开闭机构，所述开闭机构用于打开或者关闭所述进气口(13)。
  4. 根据权利要求3所述的气泵，其特征在于，所述开闭机构包括：
    固定门(41)，所述固定门(41)安装在所述进气口(13)内，所述固定门(41)具有间隔设置的第一通气孔(41a)；
    活动门(42)，所述活动门(42)通过转轴转动连接在所述固定门(41)上，所述活动门(42)具有第二通气孔(42a)；
    所述活动门(42)具有使所述第二通气孔(42a)与所述第一通气孔(41a)错开并关闭所述第一通气孔(41a)的第一位置，所述活动门(42)具有使所述第二通气孔(42a)与所述第一通气孔(41a)连通的第二位置，所述活动门(42)通过转动在第一位置和第二位置之间切换。
  5. 根据权利要求4所述的气泵，其特征在于，所述开闭机构还包括：
    旋钮(43)，所述旋钮(43)驱动连接在所述活动门(42)上，所述旋钮(43)通过转动从而带动所述活动门(42)转动；所述旋钮(43)上设置有第三通气孔(43a)，所述第三通气孔(43a)与所述第二通气孔(42a)连通。
  6. 根据权利要求4所述的气泵，其特征在于，所述固定门(41)和所述活动门(42)均为具有多个扇叶的扇形门结构。
  7. 根据权利要求2所述的气泵，其特征在于，所述外壳(10)内部形成有负压区(50)，所述负压区(50)与所述气缸(20)的吸气口(21)连通，所述进气口(13)和所述抽气口(11)均与所述负压区(50)连通。
  8. 根据权利要求7所述的气泵，其特征在于，所述气缸(20)包括气缸基座(23)，所述气缸基座(23)与所述外壳(10)之间围成所述负压区(50)，所述气缸基座(23)上设置有吸气口(21)。
  9. 根据权利要求8所述的气泵，其特征在于，
    所述气缸基座(23)上设置有限位筋(231)和限位槽(232)，所述外壳上设置有限位凸台(14)；
    所述限位凸台(14)卡接在所述限位槽(232)内；所述气缸基座(23)、所述限位筋(231)、所述限位槽(232)、所述限位凸台(14)和所述外壳相配合形成所述负压区(50)。
  10. 根据权利要求8所述的气泵，其特征在于，
    所述气缸基座(23)上设置限位槽(232)，所述外壳上设置有限位凸台(14)；
    所述限位凸台(14)卡接在所述限位槽(232)内。
  11. 根据权利要求7所述的气泵，其特征在于，
    所述气缸(20)包括与电机连接的传动组件(24)和进行做功的活塞杆(25)，所述传动组件(24)与所述活塞杆(25)驱动连接，所述传动组件(24)与所述活塞杆(25)均设置在所述负压区(50)内。
  12. 根据权利要求2所述的气泵，其特征在于，所述进气口(13)与所述抽气口(11)相邻设置，所述进气口(13)的直径大于所述抽气口(11)的直径。
  13. 根据权利要求3所述的气泵，其特征在于，所述开闭机构包括：
    滑动格栅(31)，所述滑动格栅(31)可移动地设置在所述外壳(10)上，所述滑动格栅(31)位于所述进气口(13)处，所述滑动格栅(31)通过移动打开或者关闭所述进气口(13)。
  14. 根据权利要求13所述的气泵，其特征在于，
    所述滑动格栅(31)设置有通气孔(31a)；所述滑动格栅(31)具有使所述通气孔(31a)与所述进气口(13)错开并关闭所述进气口(13)的第一位置；所述滑动格栅(31)具有使所述通气孔(31a)与所述进气口(13)连通并打开所述进气口(13)的第二位置，所述滑动格栅(31)通过移动在第一位置和第二位置之间切换。
  15. 根据权利要求14所述的气泵，其特征在于，所述进气口(13)包括设置在所述外壳(10)上的至少一个格栅孔，所述格栅孔与所述通气孔(31a)对应设置；
    在所述滑动格栅(31)位于第一位置时，所有所述格栅孔与所述通气孔(31a)错开；
    在所述滑动格栅(31)位于第二位置时，所有所述格栅孔与所述通气孔(31a)连通。
  16. 根据权利要求14所述的气泵，其特征在于，所述开闭机构还包括：
    拨动件(32)，所述拨动件(32)与所述滑动格栅(31)驱动连接，所述拨动件(32)通过移动从而带动所述滑动格栅(31)移动。
  17. 根据权利要求1至16任一项所述的气泵，其特征在于，
    所述气泵包括气嘴(30)，所述气嘴(30)可拆卸地连接在所述充气口(12)上，所述气嘴(30)同时能够可拆卸连接在所述抽气口(11)上。
  18. 根据权利要求17所述的气泵，其特征在于，
    所述拨动件(32)位于所述抽气口(11)处，所述拨动件(32)具有与所述气嘴(40)配合的抵接面(321)；
    所述气嘴(40)在安装至所述抽气口(11)的过程中，所述气嘴(40)抵接所述拨动件(32)的抵接面(321)上并带动拨动件(32)移动；所述气嘴(40)固定在所述抽气口(11)的状态下，所述拨动件(32)带动所述滑动格栅(31)切换至第一位置。
  19. 根据权利要求18所述的气泵，其特征在于，
    所述拨动件(32)具有推动位置和默认位置；
    所述拨动件(32)在推动位置时，所述滑动格栅(31)位于第一位置；
    所述拨动件(32)在默认位置时，所述滑动格栅(31)位于第二位置。
  20. 根据权利要求19所述的气泵，其特征在于，所述开闭机构还包括：
    弹性回复件(33)，所述弹性回复件(33)的一端与所述拨动件(32)连接、另一端与所述外壳(10)连接，所述弹性回复件(33)的作用力用于将所述拨动件(32)复位至所述拨动件(32)的默认位置。
  21. 根据权利要求16所述的气泵，其特征在于，
    所述拨动件(32)具有配合凸起(322)，
    所述滑动格栅(31)具有配合孔(31b)，所述配合凸起(322)插设在所述配合孔(31b)内。
  22. 根据权利要求21所述的气泵，其特征在于，所述配合凸起(322)上具有第一斜面(51)；所述配合孔(31b)内壁具有第二斜面(52)，所述第一斜面(51)和所述第二斜面(52)抵接并驱动配合，所述拨动件(32)通过所述第一斜面(51)和所述第二斜面(52)的驱动配合以驱动所述滑动格栅(31)移动。
  23. 根据权利要求17所述的气泵，其特征在于，
    所述拨动件(32)具有供所述气嘴(40)穿过的避让孔(32a)。
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