CN212774632U

CN212774632U - Medical manual pressurizing air pump

Info

Publication number: CN212774632U
Application number: CN202021542438.XU
Authority: CN
Inventors: 先柳帆
Original assignee: Luojiang District People's Hospital Of Deyang
Current assignee: Luojiang District People's Hospital Of Deyang
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-23
Anticipated expiration: 2030-07-29

Abstract

The utility model provides a medical manual pressurization air pump belongs to air pump technical field. The medical manual pressurizing air pump comprises an air cylinder assembly, an air charging and discharging switching assembly and an air inlet adjusting assembly. Rotate the knob, make baffle and first air channel position correspond, press the piston rod, pressure increase jack-up arc bottom plate in the barrel, compressed air gets into the joint, and during the pulling piston rod, pressure is less in the barrel, arc bottom plate can support in the arc, prevent to connect the internal air backward flow, rotate the knob, make second air channel and first air channel position correspond, joint and barrel intercommunication, the air can flow back to in the barrel from the joint, realize the gassing function, the pulling piston rod, form the negative pressure in the barrel, make and connect the internal air backward flow, realize the function of bleeding, the rotary drum, alright adjust the air input of first air inlet duct, the problem that current medical manual pressurization air pump mostly only possesses the function of inflating and can not control the air input well has been improved.

Description

Medical manual pressurizing air pump

Technical Field

The utility model relates to an air pump field particularly, relates to a medical manual pressurization air pump.

Background

Air pumps, i.e. "air pumps", are devices that remove air from an enclosed space or add air to an enclosed space. The air pump mainly comprises an electric air pump, a manual air pump, a foot-operated air pump and the like. The manual air pump is an air pump taking hand power as power, and generates air pressure by continuously compressing air through the hand power. The existing manual air pump usually adopts a piston type, and air suction or air supply is realized by reciprocating the piston in an air cylinder. In the medical field, air pumps are widely used.

The inventor finds that most of the existing medical manual pressurizing air pumps only have an air charging function, cannot well control air inflow, are complex in structure and cannot well meet the actual use requirements in the medical field.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides a medical manual pressurization air pump aims at improving the problem that current medical manual pressurization air pump mostly only possesses the function of inflating and can not control the air input well.

The utility model discloses a realize like this:

the utility model provides a medical manual pressurization air pump, include inflator subassembly, fill gassing switching module and air admission adjusting part.

The inflator subassembly includes the barrel, admits air a section of thick bamboo, block, piston rod, leather cup and handle, has seted up the sliding tray in the barrel, admit air a section of thick bamboo communicate in the barrel, the first air inlet duct of a plurality of has evenly been seted up on the surface of admitting air a section of thick bamboo, block threaded connection in the one end of admitting air a section of thick bamboo, the piston rod runs through the block, the piston rod can be followed the sliding tray slides, the leather cup connect in the one end of piston rod, the leather cup can paste tightly the barrel inner wall slides, the handle connect in the other end of piston rod.

The inflation and deflation switching assembly comprises a connecting cylinder, an air vent block, a switching plate, a knob and a joint, the connecting cylinder is connected with one end of the cylinder body, the air vent block is connected with the other end of the connecting cylinder, a through groove is formed in the middle of the air vent block, the through groove is communicated with the connecting cylinder and the cylinder body, an arc-shaped groove is formed in one end of the air vent block, a plurality of first air channels are uniformly formed in the periphery of the air vent block, the switching plate comprises an arc-shaped bottom plate and a plurality of baffle plates, the arc-shaped bottom plate is matched with the arc-shaped groove, the baffle plates can block the first air channels, a second air vent groove is arranged between the baffle plates and can rotate to correspond to the first air channels, the knob is rotatably connected with the air vent block, the air vent block and the switching plate are both positioned in the knob, and a clamping block is arranged in the knob, the fixture block is clamped in the second ventilation groove, the switching plate can slide along the fixture block, the joint is connected to the top of the knob, and the joint is communicated with the knob.

The air inlet adjusting assembly comprises a rotary drum which is rotatably connected to the air inlet cylinder, and a plurality of second air inlet grooves matched with the first air inlet grooves are formed in the rotary drum.

In an embodiment of the present invention, the air inlet cylinder is provided with a groove adapted to the rotary cylinder, and the rotary cylinder is located in the groove.

In an embodiment of the present invention, the cup is in clearance fit with the inner wall of the cylinder.

In an embodiment of the present invention, the sleeve is sleeved outside the handle, and the sleeve can slide along the outer wall of the barrel.

In an embodiment of the present invention, the sleeve surface is provided with a non-slip pad, and the non-slip pad is a rubber pad or a polyurethane pad.

In an embodiment of the present invention, the connecting cylinder and the knob surface are provided with corresponding inflation/deflation labels.

In an embodiment of the present invention, the cylinder and the air inlet cylinder are of an integral structure, and the connecting cylinder and the ventilation block are of an integral structure.

In an embodiment of the present invention, the joint of the connecting cylinder and the cylinder is provided with a sealing gasket, and the joint of the ventilation block and the knob is also provided with a sealing gasket.

In an embodiment of the present invention, the sleeve, the connecting cylinder and the edge of the joint are all provided with a circular arc chamfer.

In an embodiment of the present invention, the outer side of the joint is provided with an anti-slip block.

The utility model has the advantages that: the utility model discloses a medical manual pressurization air pump that obtains through above-mentioned design, when using, on waiting to aerify the equipment with the joint through the hose, the knob is rotated, make baffle and first air duct position correspond, press the piston rod, the inboard air volume of barrel reduces, the pressure increases, leather cup edge expansion tightly does not let the barrel in the air escape around the barrel, continue to press the piston rod, when the enough jack-up arc bottom plate of pressure, compressed air gets into the joint through the second air duct, and when pulling the piston rod, because pressure is less in the barrel, the arc bottom plate supports in the arc groove, the baffle blocks the second air duct, the air can not flow back, and the air in the outside can extrude into the barrel from the leather cup all around through first air inlet duct, press the piston rod and can carry out next inflation, the knob is rotated, make second air duct and first air duct position correspond, connect and barrel intercommunication, the air can flow back to in the barrel from the joint, and flow out through first air inlet duct, realize the gassing function, the pulling piston rod this moment, pressure reduces in the barrel and forms the negative pressure, the air flows to in the barrel from the joint, realize the function of bleeding, rotatory rotary drum, adjust the area of the relative part of first air inlet duct and second air inlet duct, the air input of first air inlet duct can be adjusted, the problem that current medical manual pressurization air pump mostly only possesses the function of inflating and can not control the air input well has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a medical manual pressurization air pump provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of a medical manual pressurizing air pump with a sleeve according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure view of a gas cylinder assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an air intake duct according to an embodiment of the present invention;

fig. 5 is a schematic view of an enlarged cross-sectional structure at a position a according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a connecting cylinder and a vent block according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a switching plate according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a switching plate and a knob according to an embodiment of the present invention.

In the figure: a 100-cylinder assembly; 110-a cylinder; 1110-a sliding groove; 120-an air inlet cylinder; 1210-a first air intake slot; 130-a cap; 140-a piston rod; 150-leather cup; 160-a handle; 170-a sleeve; 200-inflation and deflation switching component; 210-a connector barrel; 220-a ventilation block; 2210-through grooves; 2220-arc slot; 2230-a first vent slot; 230-a switching plate; 231-an arc-shaped bottom plate; 232-baffle; 233-a second vent slot; 240-knob; 2410-clamping block; 250-a linker; 2510-anti-skid block; 300-an intake air adjustment assembly; 310-a rotating drum; 320-second inlet slot.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-8, the present invention provides a medical manual pressurizing air pump, which comprises an air cylinder assembly 100, an inflation/deflation switching assembly 200 and an air intake adjusting assembly 300, wherein the air cylinder assembly 100 is used for inflation/deflation, the inflation/deflation switching assembly 200 is used for switching the inflation/deflation modes, and the air intake adjusting assembly 300 is used for adjusting the air intake amount.

Referring to fig. 2, 3 and 4, the air cylinder assembly 100 includes a cylinder body 110, an air inlet cylinder 120, a cap 130, a piston rod 140, a cup 150 and a handle 160, a sliding groove 1110 is formed in the cylinder body 110, the air inlet cylinder 120 is communicated with the cylinder body 110, specifically, the cylinder body 110 and the air inlet cylinder 120 are of an integrated structure, a plurality of first air inlet grooves 1210 are uniformly formed on the surface of the air inlet cylinder 120, air can enter the air inlet cylinder 120 from the first air inlet grooves 1210, the cap 130 is connected to one end of the air inlet cylinder 120 in a threaded manner, the cap 130 is used for sealing the air inlet cylinder 120, the piston rod 140 penetrates the cap 130, the piston rod 140 can slide along the sliding groove 1110, the cup 150 is connected to one end of the piston rod 140, the cup 150 is in clearance fit with the inner wall of the cylinder body 110, the cup 150 can slide tightly against the inner wall of the cylinder body 110, it should be noted that the cup 150 is U-, pressure reduces, the air in the outside can be followed leather cup 150 and crowded into barrel 110 all around, when pressing piston rod 140 inwards, the air volume of barrel 110 inboard reduces, pressure increases, leather cup 150 edge expansion tightly supports barrel 110 not let the air escape all around, handle 160 is connected in the other end of piston rod 140, sleeve 170 has been cup jointed to the handle 160 outside, sleeve 170 can be followed barrel 110 outer wall and slided, handle 160 and sleeve 170 are all for the convenience to stimulate piston rod 140, sleeve 170 conveniently grips, sleeve 170 surface is provided with the slipmat, the slipmat is rubber pad or polyurethane pad, the slipmat can increase frictional force, the condition that the hand was slided when reducing pulling sleeve 170.

Referring to fig. 5-8, the charge/discharge switching assembly 200 includes a connecting cylinder 210, a vent block 220, a switching plate 230, a knob 240 and a joint 250, the connecting cylinder 210 is connected to one end of the cylinder 110, the vent block 220 is connected to the other end of the connecting cylinder 210, in a specific embodiment, the connecting cylinder 210 and the vent block 220 are of an integrated structure, as shown in fig. 6, a through groove 2210 is formed in the middle of the vent block 220, the through groove 2210 is communicated with the connecting cylinder 210 and the cylinder 110, the through groove 2210 facilitates air intake, an arc-shaped groove 2220 is formed at one end of the vent block 220, a plurality of first vent grooves 2230 are uniformly formed around the vent block 220, the switching plate 230 includes an arc-shaped bottom plate 231 and a plurality of baffles 232, as shown in fig. 7, the arc-shaped bottom plate 231 is adapted to the arc-shaped groove 2220, the baffles 232 can block the first vent grooves 2230, a second vent groove 233 is formed between the baffles 232, the second, the knob 240 is rotatably connected to the ventilation block 220, the ventilation block 220 and the switching plate 230 are both located in the knob 240, a fixture block 2410 is arranged in the knob 240, as shown in fig. 8, the fixture block 2410 is clamped in the second ventilation groove 233, and the switching plate 230 can slide along the fixture block 2410.

It should be noted that the knob 240 can switch the air charging and discharging mode of the manual pressurizing air pump, the knob 240 is rotated, the latch 2410 drives the switching plate 230 to rotate, when the position of the baffle 232 corresponds to the position of the first vent groove 2230, the piston rod 140 is pressed, the pressure in the cylinder 110 is increased to press the arc-shaped bottom plate 231, a gap exists between the arc-shaped bottom plate 231 and the arc-shaped groove 2220, the compressed air enters the joint 250 through the second vent groove 233, when the piston rod 140 is pulled, because the pressure in the cylinder 110 is lower, the arc-shaped bottom plate 231 is pressed against the arc-shaped groove 2220, the baffle 232 blocks the second vent groove 233, the air does not flow back, which is the air charging mode, the knob 240 is rotated, when the position of the second vent groove 233 corresponds to the position of the first vent groove 2230, the joint 250 is communicated with the cylinder 110, which is the air discharging mode, when the piston rod 140 is pulled, the pressure in the cylinder 110, this is the pumping mode.

In this application, the connecting cylinder 210 and the knob 240 surface are provided with corresponding inflation and deflation label, so as to switch the inflation and deflation mode, the junction of connecting cylinder 210 and barrel 110 is provided with the sealed pad, the junction of ventilating block 220 and knob 240 also is provided with the sealed pad, the sealed pad can increase the gas tightness, it is better to make the inflation and deflation effect, connect 250 and connect in the knob 240 top, connect 250 and communicate in knob 240, sleeve 170, the circular arc chamfer has all been seted up at the edge of connecting cylinder 210 and joint 250, make its surface smooth, reduce the scotch, the outside that connects 250 is provided with non slipping spur 2510, connect 250 and can cup joint on the hose, non slipping spur 2510 then can reduce the probability of hose landing.

Referring to fig. 1, the intake air adjusting assembly 300 includes a drum 310, the drum 310 is rotatably connected to the intake cylinder 120, and when the intake cylinder 120 is specifically configured, a groove adapted to the drum 310 is formed around the intake cylinder 120, the drum 310 is located in the groove, and a plurality of second intake grooves 320 adapted to the first intake grooves 1210 are formed on the drum 310.

The working principle of the medical manual pressurizing air pump is as follows: when the inflatable air compressor is used, the connector 250 is connected to a device to be inflated through a hose in an equivalent manner, the knob 240 is rotated to enable the position of the baffle 232 to correspond to the position of the first vent groove 2230, the piston rod 140 is pressed, the volume of air inside the cylinder 110 is reduced, the pressure is increased, the edge of the leather cup 150 is expanded to tightly abut against the periphery of the cylinder 110 so as not to allow air inside the cylinder 110 to escape, the piston rod 140 is continuously pressed, when the pressure is enough to jack up the arc-shaped bottom plate 231, compressed air enters the connector 250 through the second vent groove 233, when the piston rod 140 is pulled, because the pressure inside the cylinder 110 is smaller, the arc-shaped bottom plate 231 abuts against the arc-shaped groove 2220, the baffle 232 blocks the second vent groove 233, air cannot flow back, air outside air can be squeezed into the cylinder 110 from the periphery of the leather cup 150 through the first air inlet groove 1210, next inflation can be carried out by pressing the piston rod 140, the knob 240 is, the joint 250 is communicated with the cylinder body 110, air can flow back into the cylinder body 110 from the joint 250 and flows out through the first air inlet groove 1210 to achieve an air discharging function, at the moment, the piston rod 140 is pulled, the pressure in the cylinder body 110 is reduced to form negative pressure, the air flows into the cylinder body 110 from the joint 250 to achieve an air pumping function, the rotary drum 310 is rotated, the area of the part, opposite to the first air inlet groove 1210 and the second air inlet groove 320, of the rotary drum can be adjusted, the air inflow of the first air inlet groove 1210 can be adjusted, and the problem that most of existing medical manual pressurizing air pumps only have an air charging function and cannot well control the air inflow is solved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical manual pressurization air pump is characterized by comprising

The inflator assembly (100) comprises a barrel body (110), an air inlet cylinder (120), a cover cap (130), a piston rod (140), a leather cup (150) and a handle (160), wherein a sliding groove (1110) is formed in the barrel body (110), the air inlet cylinder (120) is communicated with the barrel body (110), a plurality of first air inlet grooves (1210) are uniformly formed in the surface of the air inlet cylinder (120), the cover cap (130) is in threaded connection with one end of the air inlet cylinder (120), the piston rod (140) penetrates through the cover cap (130), the piston rod (140) can slide along the sliding groove (1110), the leather cup (150) is connected to one end of the piston rod (140), the leather cup (150) can tightly cling to the inner wall of the barrel body (110) to slide, and the handle (160) is connected to the other end of the piston rod (140);

the inflation and deflation switching assembly (200) comprises a connecting cylinder (210), a ventilation block (220), a switching plate (230), a knob (240) and a joint (250), wherein the connecting cylinder (210) is connected to one end of the cylinder body (110), the ventilation block (220) is connected to the other end of the connecting cylinder (210), a through groove (2210) is formed in the middle of the ventilation block (220), the through groove (2210) is communicated with the connecting cylinder (210) and the cylinder body (110), an arc-shaped groove (2220) is formed in one end of the ventilation block (220), a plurality of first ventilation grooves (2230) are uniformly formed in the periphery of the ventilation block (220), the switching plate (230) comprises an arc-shaped bottom plate (231) and a plurality of baffle plates (232), the arc-shaped bottom plate (231) is matched with the arc-shaped groove (2220), and the baffle plates (232) can block the first ventilation grooves (2230), a second vent groove (233) is formed between the baffle plates (232), the second vent groove (233) can rotate to correspond to the first vent groove (2230), the knob (240) is rotatably connected to the vent block (220), the vent block (220) and the switching plate (230) are both positioned in the knob (240), a fixture block (2410) is arranged in the knob (240), the fixture block (2410) is clamped in the second vent groove (233), the switching plate (230) can slide along the fixture block (2410), the joint (250) is connected to the top of the knob (240), and the joint (250) is communicated with the knob (240);

the air inlet adjusting assembly (300), the air inlet adjusting assembly (300) includes a rotating drum (310), the rotating drum (310) is rotatably connected to the air inlet cylinder (120), and a plurality of second air inlet grooves (320) matched with the first air inlet grooves (1210) are formed in the rotating drum (310).

2. The medical manual compression air pump as claimed in claim 1, wherein the air inlet tube (120) is formed with a groove around the circumference thereof, the groove being adapted to the rotary tube (310), and the rotary tube (310) is located in the groove.

3. The medical manual compression air pump as set forth in claim 1, wherein the cup (150) is clearance-fitted to an inner wall of the cylinder (110).

4. The medical manual pressurizing air pump according to claim 1, wherein a sleeve (170) is sleeved outside the handle (160), and the sleeve (170) can slide along the outer wall of the barrel body (110).

5. The medical manual compression air pump as claimed in claim 4, wherein the sleeve (170) is provided with a non-slip pad on the surface, and the non-slip pad is a rubber pad or a polyurethane pad.

6. The medical manual pressurizing air pump as claimed in claim 1, wherein the surfaces of the connecting cylinder (210) and the knob (240) are provided with corresponding inflation and deflation labels.

7. The medical manual compression air pump according to claim 1, wherein the cylinder body (110) and the air inlet cylinder (120) are of a unitary structure, and the connecting cylinder (210) and the air vent block (220) are of a unitary structure.

8. The medical manual pressurizing air pump as set forth in claim 1, wherein a sealing gasket is provided at the junction of the connecting cylinder (210) and the cylinder body (110), and a sealing gasket is also provided at the junction of the air vent block (220) and the knob (240).

9. The medical manual compression air pump according to claim 4, wherein the edges of the sleeve (170), the connecting cylinder (210) and the joint (250) are rounded.

10. The medical manual compression air pump according to claim 1, wherein the outside of the joint (250) is provided with an anti-slip block (2510).