CN114483527A

CN114483527A - Inflator pump convenient to carry

Info

Publication number: CN114483527A
Application number: CN202011166940.XA
Authority: CN
Inventors: 倪祖根
Original assignee: Kingclean Electric Co Ltd
Current assignee: Kingclean Electric Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2022-05-13

Abstract

The invention relates to the technical field of inflating devices, in particular to a portable inflating pump. The invention provides an inflator pump which comprises a piston rod, an air cylinder, a transmission mechanism, a driving mechanism and a connecting mechanism, wherein one end of the air cylinder is connected with the transmission mechanism, the other end of the air cylinder is connected with the connecting mechanism, the driving mechanism comprises an output end, the output end is connected with one end of the piston rod through the transmission mechanism, and the other end of the piston rod extends into the air cylinder and can do reciprocating motion in the air cylinder. The included angle of actuating mechanism's first axis and the second axis of cylinder is greater than zero degree and is less than 180 degrees, or actuating mechanism and cylinder setting are in one side of drive mechanism, and arrange along drive mechanism's thickness direction parallel for the volume accounts for the compactness of arranging of bigger actuating mechanism and cylinder in the pump, the aforesaid is arranged and can effectively be reduced the holistic length of pump, makes things convenient for the operator to carry and operate.

Description

Inflator pump convenient to carry

Technical Field

The invention relates to the technical field of inflation devices, in particular to an inflator pump convenient to carry.

Background

The inflator pump is called as an inflator and an inflation pump and comprises a motor, a transmission mechanism, a piston rod and an air cylinder, wherein the output end of the motor is in transmission connection with one end of the piston rod through the transmission mechanism, and the other end of the piston rod is inserted in the air cylinder. The reciprocating motion of the piston rod in the cylinder is realized through the operation of the motor so as to realize the operation of the inflator pump, when air is pumped out, outside air enters the cylinder, and when air is pumped out, the air in the cylinder can enter the tire. However, the motor and the cylinder of the existing inflator pump are arranged along the linear direction, which results in the overlong overall length of the inflator pump and is inconvenient for a user to carry and operate.

Based on this, it is highly desirable to provide an inflator pump to solve the problems of long overall length, inconvenience in carrying and inconvenience in operation.

Disclosure of Invention

The invention aims to provide a portable inflator pump, which can effectively reduce the overall length of the inflator pump, is convenient for an operator to carry and is convenient for the operator to operate.

In order to achieve the purpose, the invention adopts the following technical scheme:

a portable inflator pump comprises a piston rod, an air cylinder, a transmission mechanism, a driving mechanism and a connecting mechanism, wherein one end of the air cylinder is connected with the transmission mechanism, the other end of the air cylinder is connected with the connecting mechanism, the driving mechanism comprises an output end, the output end is connected with one end of the piston rod through the transmission mechanism, and the other end of the piston rod extends into the air cylinder and can reciprocate in the air cylinder;

an included angle between a first axis of the driving mechanism and a second axis of the air cylinder is larger than zero degree and smaller than 180 degrees; or the driving mechanism and the air cylinder are arranged on one side of the transmission mechanism and are arranged in parallel along the thickness direction of the transmission mechanism.

Preferably, the transmission mechanism includes:

the driving mechanism further comprises a body connected with the output end, the body and the air cylinder are arranged on the shell, and the output end extends into the shell;

a first gear disposed on the output end;

the second gear sets up in the casing and with the casing rotates to be connected, the upper surface or the lower surface of second gear are provided with the meshing tooth, the meshing tooth with first gear meshes mutually, the eccentric stand that is provided with on the second gear, the one end of piston rod with the stand is articulated, the piston rod passes the casing stretches into in the cylinder.

Preferably, the casing includes first mounting flange and second mounting flange, the body is fixed on first mounting flange, the cylinder is fixed on the second mounting flange, the central line of first mounting flange with the central line of second mounting flange is the acute angle setting.

Preferably, a relative position of the drive mechanism with respect to the cylinder in the circumferential direction is adjustable.

Preferably, the casing is provided with a first mounting chute extending along the circumferential direction, the output end is slidably arranged in the first mounting chute in a penetrating manner, and the driving mechanism further comprises a fixing part which fixes the body on the casing.

Preferably, the body and the cylinder are respectively located at upper and lower sides of the second gear.

Preferably, the housing is provided with a plurality of mounting holes arranged along the circumferential direction, and the fixing member fixes the body and one of the mounting holes, so that the driving mechanism is fixed at a preset position of the housing.

Preferably, the fixing piece is an elastic block, the elastic block is arranged on one side of the body opposite to the transmission mechanism, and the elastic block can be selectively inserted into any one of the mounting holes.

Preferably, the inflator pump further comprises a connecting mechanism, the connecting mechanism comprises a connecting pipe and a one-way valve, an air outlet is formed in the air cylinder, one end of the connecting pipe is communicated with the air outlet, and the one-way valve is arranged in the connecting pipe and located at the air outlet.

Preferably, the inflator further includes:

the inflation tube comprises a tube body and a joint which are connected, the joint is inserted at the other end of the connecting tube, a first annular bulge is arranged on the periphery of the joint, and a second annular bulge is convexly arranged inside the connecting tube; and

and the buckle is inserted into the connecting pipe from one side of the connecting pipe, and the buckle and the second annular bulge clamp the first annular bulge together.

The invention has the beneficial effects that:

the included angle between the first axis of the driving mechanism of the inflator pump and the second axis of the air cylinder is larger than zero degrees and smaller than 180 degrees, or the driving mechanism and the air cylinder are arranged on one side of the transmission mechanism and are arranged in parallel along the thickness direction of the transmission mechanism, so that the driving mechanism with larger volume in the inflator pump and the arrangement of the air cylinder are compact, the arrangement can effectively reduce the overall length of the inflator pump, and the inflator pump is convenient for an operator to carry and operate.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic diagram of a portable inflator according to an embodiment of the present invention;

FIG. 2 is a schematic view showing a portion of a portable inflator according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a second schematic diagram of a portion of a portable inflator according to a first embodiment of the present invention;

FIG. 4 is a schematic structural view of the bottom portion of a portable inflator provided in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an inflator that is portable in accordance with one embodiment of the present invention;

FIG. 6 is a partial enlarged view at B in FIG. 5;

fig. 7 is a schematic structural diagram of a piston rod according to an embodiment of the present invention;

FIG. 8 is a schematic view of a rod body according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of an inflator pump according to a second embodiment of the present invention;

FIG. 10 is a schematic structural view of an inflator pump according to a second embodiment of the present invention in which a driving mechanism and a cylinder are arranged in parallel in a thickness direction of a transmission mechanism;

FIG. 11 is a schematic structural view of an inflator pump according to a second embodiment of the present invention, in which the driving mechanism and the cylinder are staggered in the thickness direction of the transmission mechanism;

FIG. 12 is a schematic structural view of an inflator pump according to a third embodiment of the present invention;

fig. 13 is a schematic structural view of an inflator provided in the fourth embodiment of the present invention.

The figures are labeled as follows:

1-a piston rod; 2-a cylinder; 3-a transmission mechanism; 4-a drive mechanism; 5-a connection mechanism; 6-a pressure detection mechanism; 7-an inflation tube; 8-buckling; 9-a bearing;

11-a rod body; 12-a rubber ring; 21-an exhaust port; 22-a socket; 23-a second axis; 31-a first gear; 32-a second gear; 33-a housing; 34-upright column; 41-body; 42-an output terminal; 43-a fixture; 44-a first axis; 51-a connecting tube; 52-a one-way valve; 53-pressure relief valves; 61-a catheter; 62-a pressure sensor; 71-a tube body; 72-a linker;

111-an annular mounting groove; 121-an annular groove; 321-a second heat dissipation hole; 322-a rotating shaft; 323-meshing teeth; 331-a base; 332-a cover; 333-first heat dissipation hole; 411-mounting flange; 511-a second annular projection; 521-a valve core; 522-a spring; 721-a first annular projection;

3311-a first mounting flange; 3312-a second mounting flange; 3313-a first mounting chute; 3314-a second mounting chute; 3315-mounting holes;

33121-bearing surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply 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.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1 and fig. 2, the inflator pump provided in this embodiment includes a piston rod 1, a cylinder 2, a transmission mechanism 3, a driving mechanism 4, a connection mechanism 5, and an inflation tube 7, wherein the driving mechanism 4 includes a body 41 and an output end 42 connected to each other, one end of the cylinder 2 is connected to the transmission mechanism 3, the other end of the cylinder 2 is connected to the connection mechanism 5, the output end 42 of the driving mechanism 4 is connected to one end of the piston rod through the transmission mechanism, and the other end of the piston rod 1 extends into the cylinder and can reciprocate in the cylinder 2. The cylinder 2 is communicated with the inside of the connecting mechanism 5, one end of the connecting mechanism 5, which is far away from the cylinder 2, is connected with an inflation tube 7, the free end of the inflation tube 7 can be communicated with a structure to be inflated, and the structure to be inflated can be a tire, a rubber ball or a balloon and the like. When the driving mechanism 4 works, the driving mechanism 4 drives the piston rod 1 to reciprocate in the cylinder 2 through the transmission mechanism 3, when the piston rod 1 is outwards pulled out, external gas can enter through a gap between the piston rod 1 and the cylinder 2, and when the piston rod 1 is inwards pressed, the gas in the cylinder 2 sequentially passes through the connecting mechanism 5 and the inflation tube 7 and is finally discharged from the free end of the inflation tube 7.

When an operator uses the inflator pump to inflate a structure to be inflated, if other things in the middle of the operator leave, excessive gas in the inflator pump or in the structure to be inflated can be caused, and the inflator pump or the structure to be inflated can explode easily in serious situations, so that the personal safety of the operator is affected, and unnecessary economic and life losses are caused. In addition, under the condition that the operator does not know the internal pressure of the structure to be inflated, if the operator inflates the structure to be inflated with a large internal gas pressure, the inflator or the structure to be inflated may explode, which affects the personal safety of the operator and causes unnecessary economic and life loss. In order to solve the above problem, as shown in fig. 1, the connection mechanism 5 includes a connection pipe 51 and a pressure release valve 53, the connection pipe 51 is tubular, and two ends of the connection pipe 51 are open, one opening of the connection pipe 51 is communicated with the inside of the cylinder 2, the other opening of the connection pipe 51 is communicated with the inflation pipe 7, the pressure release valve 53 is disposed on the connection pipe 51 and is communicated with the inside of the connection pipe 51, when the pressure inside the connection pipe 51 exceeds the safety pressure, the pressure release valve 53 will be opened, thereby discharging the excessive gas inside the connection pipe 51, avoiding the occurrence of explosion phenomenon caused by the excessive pressure of the gas inside the inflator or the mechanism to be inflated, ensuring the personal safety of the operator, and avoiding unnecessary economic loss and life loss. Preferably, as shown in fig. 5, the cylinder 2 of the check valve 52 is provided with an exhaust port 21 and a plug port 22, the piston rod 1 is plugged into the cylinder 2 through the plug port 22, one end of the connecting pipe 51 is communicated with the exhaust port 21, and the check valve 52 is disposed in the connecting pipe 51 and located at the exhaust port 21. When the piston rod 1 performs the pumping operation, the check valve 52 can prevent the gas in the cylinder 2 from entering the connecting pipe 51, and when the piston rod 1 performs the exhaust operation, the gas in the cylinder 2 can push the check valve 52 to open, so that the gas in the cylinder 52 enters the connecting pipe 51 and the inflation pipe 7. Specifically, the check valve 52 includes a valve element 521 and a spring 522, one end of the spring 522 is connected to the valve element 521, the other end of the spring 522 is connected to the connection pipe 51, the spring 522 is reset so that the valve element 521 blocks the exhaust port 21 when the gas pressure in the cylinder 2 is low, and the spring 522 is compressed so that the valve element 521 opens the exhaust port 21 when the gas pressure in the cylinder 2 is high, thereby allowing the gas in the cylinder 2 to enter the connection pipe 51.

In addition, as shown in fig. 1, the inflator further includes a controller not shown in the figure, a display screen not shown in the figure, and a pressure detection mechanism 6, wherein the pressure detection mechanism 6 includes a connection conduit 61 and a pressure sensor 62, one end of the conduit 61 not connected with the pressure sensor 62 is communicated with the inside of the connection pipe 51, both the pressure sensor 62 and the display screen are electrically connected with the controller, the pressure sensor 62 can detect a pressure value inside the connection pipe 51 and transmit the pressure value to the controller, the controller transmits the pressure value to the display screen, and the display screen can display the pressure value. Therefore, the pump of this embodiment can also realize treating the detection of gas filled structure internal pressure value except having the function of aerifing, can let the operator accomplish to treat the knowing in advance of gas filled structure internal pressure value before inflating, accomplishes to inflate before having the number in the heart. In addition, when the operator performs the inflation operation by using the inflator, the operator can observe the inflation operation in real time through the display screen, and when the gas pressure in the connecting pipe 51 reaches a predetermined value, the operator can stop the inflation function of the inflator in time. In order to reduce the overall length of the inflator, the duct 61 is disposed above the connection pipe 51, thereby achieving an effect of making reasonable use of the inner space of the inflator. In addition, in order to achieve stable fixation of the pressure sensor 62, the pressure sensor 62 is fixed to the upper surface of the transmission mechanism 3 by screws. Specifically speaking, the screw sets up to 4, and every corner of pressure sensor 62 all is provided with a screw, and the inflator pump can effectively avoid taking place to rock at the transportation or the in-process of using, guarantees pressure sensor 62's normal operating.

Preferably, the driving mechanism 4 is electrically connected to the controller, a preset pressure value is provided in the controller, and when the pressure value in the connecting pipe 51 detected by the pressure sensor 62 reaches the preset pressure value, the controller can control the driving mechanism 4 to stop in time, that is, the operator does not need to look at the display screen all the time, and can do some other things in the process of inflating the inflator pump, so as to improve the time utilization rate of the operator. In order to reduce the volume of pump, actuating mechanism 4 of this embodiment can be micro motor, this pump still includes the lithium cell, the lithium cell can be for micro motor and controller power supply, furthermore, the controller can also detect the electric quantity of lithium cell, the controller can be with the electric quantity information transmission of lithium cell to the display screen on, the operator can realize the understanding to the electric quantity of lithium cell through watching the electric quantity information on the display screen, when the lithium cell electric quantity was low excessively, the operator can change the lithium cell in advance, avoid appearing the unable normal use's of follow-up pump the condition.

In addition, the conventional drive mechanism 4 of the inflator pump and the cylinder 2 are arranged along a straight line direction, which results in the overlong overall length of the inflator pump, and is inconvenient for a user to carry, as shown in fig. 2, the projection of the first axis 44 of the drive mechanism 4 and the second axis 23 of the cylinder 2 on a horizontal plane intersects at a central point, the first axis 44 is parallel to the central point and extends towards the direction in which the drive mechanism 4 is arranged from the central point to form a first ray, the second axis 23 is parallel to the second axis and extends towards the direction in which the cylinder 2 is arranged from the central point to form a second ray, and the included angle formed by the first ray and the second ray is smaller than 180 degrees, so that the drive mechanism 4 and the cylinder 2 occupying a relatively large volume in the inflator pump are compactly arranged, the arrangement can effectively reduce the overall length of the inflator pump, and is convenient for an operator to carry and operate.

For the sake of easy understanding of the specific structure of the transmission mechanism 3, the description will be given with reference to fig. 2. As shown in fig. 2, the transmission mechanism 3 includes a first gear 31, a housing 33, a second gear 32 and a column 34, a body 41 of the driving mechanism 4 and the cylinder 2 are disposed on the housing 33, an output end 42 of the driving mechanism 4 extends into the housing 33, the first gear 31 is disposed on the output end 42 of the driving mechanism 4, the second gear 32 is disposed in the housing 33 and rotatably connected with the housing 33, an engaging tooth 323 is disposed on an upper surface or a lower surface of the second gear 32, the engaging tooth 323 is engaged with the first gear 31, the column 34 is eccentrically disposed on the second gear 32, one end of the piston rod 1 is hinged to the column 34, and the piston rod 1 extends into the cylinder 2 through the housing 33. When the driving mechanism 4 works, the output end 42 of the driving mechanism 4 drives the first gear 31 to rotate, and the first gear 31 drives the piston rod 1 to reciprocate in the cylinder 2, so that the air suction or inflation action of the piston rod 1 to the cylinder 2 is realized. Through the cooperation of the first gear 31 and the second gear 32, the transmission mechanism 3 of the embodiment has the characteristics of compact structure, high efficiency, long service life and the like. Specifically, when the piston rod 1 is drawn out of the cylinder 2 by a certain distance under the driving of the second gear 32, the length direction of the piston rod 1 forms a certain included angle with the axis of the cylinder 2, a certain gap is formed between the piston rod 1 and the inner wall of the cylinder 2, and external air can enter the cylinder 2 through the gap; when the piston rod 1 is inserted into the cylinder 2 under the driving of the second gear 32, the length direction of the piston rod 1 is away from the cylinder 2, the end part of the piston rod 1 coincides with the axis of the cylinder 2, and the end part of the piston rod 1 is sealed with the inner wall of the cylinder 2, the piston rod 1 pushes the gas in the cylinder 2 into the connecting mechanism 5 and the gas-filled tube 7, and therefore the gas in the cylinder 2 is injected into a structure to be inflated by the gas-filled tube 7.

As shown in fig. 2 and 3, the housing 33 includes a base 331 and a cover 332, an opening is disposed at an upper end of the base 331, the cover 332 is disposed at the opening, the first gear 31 and the second gear 32 are located in a space formed by the cover 332 and the base 331, and the second gear 32 is rotatably connected to the base 331, the housing 33 can achieve a better protection effect on the first gear 31 and the second gear 32, thereby preventing other components in the inflator pump from falling between the first gear 31 and the second gear 32, ensuring a more accurate motion transmission of the first gear 31 and the second gear 32, avoiding a failure of the transmission mechanism 3, and ensuring a normal operation of the inflator pump. In order to achieve the effect that the cylinder 2 and the driving mechanism 4 are stably mounted on the housing 33, the sidewall of the base 331 includes a first mounting flange 3311 and a second mounting flange 3312, the body 41 is mounted on the first mounting flange 3311, and the cylinder 2 is mounted on the second mounting flange 3312. In order to avoid the tube 61 from shaking during the operation of the inflator, the second mounting flange 3312 is provided with an arcuate bearing surface 33121, the shape and size of the bearing surface 33121 match the shape and size of the tube 61, and the tube 61 is placed on the bearing surface 33121.

Preferably, in order to minimize the length of the inflator and facilitate storage and storage of the inflator, the first ray coincides with the second ray, and along the thickness direction of the second gear 32, the body 41 and the cylinder 2 of the driving mechanism 4 are located on both sides of the second gear 32, and the length of the inflator with such a structure is only the sum of the length of the transmission mechanism 3, the length of the cylinder 2, the length of the connecting mechanism 5, and the length of the inflation tube 7. In order to realize the coincidence of the first ray and the second ray, the body 41 and the cylinder 2 of the driving mechanism 4 are located on both sides of the second gear 32 in the thickness direction of the second gear 32, and the teeth and the pillar 34 of the second gear 32 are located on both sides of the second gear 32 in the thickness direction in this embodiment.

Through the tests of the inventor, by setting the axis of the driving mechanism 4 and the axis of the cylinder 2 to be an acute angle, a large friction is generated between the first gear 31 and the second gear 32, so that a large amount of heat is generated between the first gear 31 and the second gear 32, the working efficiency of the micro motor is affected, and the working efficiency of the inflator pump is low. In order to solve the above problems, as shown in fig. 3, the sidewall of the base 331 and/or the cover 332 are provided with first heat dissipation holes 333, so that heat generated by the first gear 31 and the second gear 32 can be dissipated to the outside through the first heat dissipation holes 333, thereby preventing the internal temperature of the inflator pump from being too high, ensuring higher working efficiency of the micro motor and the inflator pump, and prolonging the service life of each component in the inflator pump.

In addition, in order to realize the smoother rotation of the second gear 322 with respect to the base 331, as shown in fig. 2, a rotating shaft 322 is disposed at an axial position of the second gear 32, as shown in fig. 4, the inflator further includes a bearing 9, an outer ring of the bearing 9 is fixed to an inner surface of the base 331, and the rotating shaft 322 is fixed to an inner ring of the bearing 9. When the inner ring and the outer ring of the bearing 9 rotate relatively, large heat is generated, and the lubricating effect of the bearing 9 is seriously influenced. In order to solve the above problem, the second heat dissipation hole 321 is formed in the second gear 32, and heat generated by the bearing 9 can be discharged to the outside of the inflator pump through the second heat dissipation hole 321 and the first heat dissipation hole 333 in sequence, so that a good cooling effect on the bearing 9 is achieved, and the lubricating effect of the bearing 9 is improved.

In order to avoid the disconnection phenomenon of the inflation tube 7 and the connecting tube 51 in the using process, the better using effect of the inflation pump is ensured. As shown in fig. 5, the inflator pump of this embodiment further includes a buckle 8, the inflator tube 7 includes a tube body 71 and a joint 72 connected to each other, the joint 72 is inserted into the other end of the connecting tube 51, a first annular protrusion 721 is disposed on the periphery of the joint 72, a second annular protrusion 511 is disposed inside the connecting tube 51 in a protruding manner, the buckle 8 is inserted into the connecting tube 51 from one side of the connecting tube 51, the buckle 8 and the second annular protrusion 511 commonly clamp the first annular protrusion 721, by disposing the buckle 8, a relatively stable connection effect between the inflator tube 7 and the connecting tube 51 can be achieved, the air tightness of the inflator pump is better, abrasion of the connection position between the inflator tube 7 and the connecting tube 51 is avoided, and the loss of the inflator tube 7 can be avoided.

For the convenience of understanding the structure of the piston rod 1, as shown in fig. 5 to 8, the piston rod 1 includes a rod body 11 and a rubber ring 12, an outer side wall of the rubber ring 12 abuts against an inner wall of the cylinder 2, and the rubber ring 12 can achieve a better sealing effect with the inner wall of the cylinder 2. In order to realize rubber circle 12 and the 11 quick assembly disassembly of the body of rod, the body of rod 11 is pegged graft and is provided with annular mounting groove 111 in the one end of cylinder 2, and rubber circle 12 is installed in annular mounting groove 111, because rubber circle 12 has certain elastic deformation, but when needing dismouting rubber circle 12, only need will draw greatly, just can realize the dismouting of rubber circle 12 and the body of rod 11.

When the body of rod 11 is in the state of taking out, the length direction of the body of rod 11 needs to be certain contained angle with the axis of cylinder 2, and one side and the cylinder 2 pressurized deformation of rubber circle 12, the opposite side of rubber circle 12 and the inner wall formation clearance of cylinder 2 to realize the effect that outside gas gets into cylinder 2, in order to improve the deformability of rubber circle 12, as shown in fig. 6, seted up ring channel 121 on the rubber circle 12. In addition, if the side of rubber circle 12 and the inner wall of cylinder 2 laminate completely, the body of rod 11 can cause the inner wall frictional force of rubber circle 12 and cylinder 2 great at the in-process of relative cylinder 2 motion, leads to the card of piston rod 1 and cylinder 2 to die the problem, leads to the unable normal operating of pump. In order to solve the above problem, as shown in fig. 6, the outer side wall of the rubber ring 12 is inclined in the direction away from the axis of the cylinder 2 from the insertion port 22 to the exhaust port 21, on one hand, the front end of the rubber ring 12 can ensure the sealing effect with the cylinder 2, and on the other hand, the contact area between the rubber ring 12 and the cylinder 2 is not too large, so that the smooth relative movement of the piston rod 1 relative to the cylinder 2 can be ensured.

Example two

The inflator provided by the embodiment is basically the same as the inflator provided by the first embodiment in structure, and the main difference is that: in order to realize that the inflator pump is applied to different scenes and avoid the interference between the driving mechanism 4 and the application scenes, as shown in fig. 2 and 9, the relative position of the driving mechanism 4 relative to the cylinder 2 along the circumferential direction is adjustable, specifically, the included angle of the driving mechanism 4 relative to the cylinder 2 along the circumferential direction can be adjusted from the included angle a in fig. 2 to the included angle C in fig. 9, so that the inflator pump can adapt to different application scenes.

Specifically, in order to realize that the relative position of the driving mechanism 4 with respect to the cylinder 2 in the circumferential direction is adjustable, as shown in fig. 10, a first mounting chute 3313 extending in the circumferential direction is formed in the housing 33, the output end 42 is slidably inserted into the first mounting chute 3313, and the driving mechanism 4 further includes a fixing member 43, and the fixing member 43 fixes the body 41 to the housing 33. In addition, the first mounting chute 3313 is disposed on the base 331, and when the body 41 and the housing 33 need to be switched from the locked state to the unlocked state or the body 41 and the housing 33 need to be switched from the unlocked state to the locked state, an operator only needs to take the cover 332 off the base 331, so that the fixing member 43 can be quickly adjusted, the body 41 and the housing 33 can be simply and quickly switched between different states, and the operator can operate the switch conveniently.

Specifically, in order to switch the body 41 and the housing 33 from the locked state to the unlocked state or switch the body 41 and the housing 33 from the unlocked state to the locked state, as shown in fig. 10 and 11, the housing 33 is provided with a second mounting chute 3314 extending along the circumferential direction, the fixing member 43 may be a screw and a nut, the screw passes through the body 41 and the second mounting chute 3314 in sequence, the nut is screwed with a threaded portion of the screw on the inner side of the housing 33, and the screw and the nut are engaged with each other, so that the body 41 and the housing 33 are fixed. In order to avoid the body 41 from deviating in the process of rotating relative to the housing 33, two sets of second mounting sliding slots 3314 are formed in the housing 33 and are arranged in parallel in the thickness direction, the upper portion and the lower portion of the body 41 are respectively provided with a fixing member 43, and each set of fixing members 43 is slidably inserted into the corresponding second mounting sliding slot 3314.

In order to improve the stability of fixing the body 41 and the housing 33, the mounting flange 411 is arranged on the body 41, and the fixing member 43 can fix the mounting flange 411 and the housing 33, so that the mounting flange 411 has a larger area, a stable fixing effect of the body 41 and the housing 33 can be ensured, the driving mechanism 4 can be effectively prevented from falling off the housing 33, and the stability of the overall structure of the inflator can be ensured.

Preferably, when the relative position of the driving mechanism 4 with respect to the cylinder 2 in the circumferential direction is adjusted, in order to avoid collision between the driving mechanism 4 and the cylinder 2 and to adjust a large number of different included angles, as shown in fig. 9, the main body 41 and the cylinder 2 are respectively located at the upper and lower sides of the second gear 32. Specifically, as shown in fig. 9, the column 34 is provided on the upper surface of the second gear 32, and the meshing teeth 323 are provided on the lower surface of the second gear 32. Of course, in other embodiments, the pillar 34 may be disposed on the lower surface of the second gear 32, and the engaging teeth 322 may be disposed on the upper surface of the second gear 32.

In addition, after the inflator pump finishes using, the driving mechanism 4 and the cylinder 2 can be adjusted to be arranged on one side of the transmission mechanism 3, and the driving mechanism 4 and the cylinder 2 are arranged in parallel along the thickness direction of the transmission mechanism 3, so that the minimization of the inflator pump is realized, and the storage of the inflator pump are facilitated.

EXAMPLE III

The inflator provided by the embodiment is basically the same as the inflator provided by the second embodiment in structure, and the main difference is that: as shown in fig. 12, the second mounting slot 3314 is replaced by a plurality of mounting holes 3315 arranged along the circumferential direction, and the fixing member 43 fixes the body 41 and one of the mounting holes 3315, so that the driving mechanism 4 is fixed at a predetermined position of the housing 33, thereby achieving the effect of rapidly positioning the driving mechanism 4 and the housing 33 to a predetermined state, and facilitating the adjustment of an operator.

Example four

The inflator provided by the embodiment is basically the same as the inflator provided by the third embodiment in structure, and the main difference is that: as shown in fig. 13, the structure of the fixing member 43 is changed. The fixing member 43 of this embodiment is an elastic block, the elastic block is disposed on a side of the body 41 opposite to the transmission mechanism 3, and the elastic block can be selectively inserted into any of the mounting holes 3315. Because the elastic block can deform to a certain extent under the condition of stress, when the positions of the body 41 of the driving mechanism 4 and the shell 33 need to be adjusted, an operator applies a circumferential force on the body 41, the elastic block deforms elastically and is separated from the mounting hole 3315, the operator adjusts the elastic block to be right opposite to the corresponding mounting hole 3315, the position of the body 41 of the driving mechanism 4 can be adjusted quickly and simply, the cover body 332 does not need to be dismounted, the quick adjustment of the relative position of the driving mechanism 4 and the transmission mechanism 3 is improved, the labor is saved, the loss of related parts is reduced, and the service life of the inflator pump is prolonged.

It is noted that the foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The inflator pump convenient to carry is characterized by comprising a piston rod (1), a cylinder (2), a transmission mechanism (3), a driving mechanism (4) and a connecting mechanism (5), wherein one end of the cylinder (2) is connected with the transmission mechanism (3), the other end of the cylinder (2) is connected with the connecting mechanism (5), the driving mechanism (4) comprises an output end (42), the output end (42) is connected with one end of the piston rod through the transmission mechanism, and the other end of the piston rod (1) extends into the cylinder (2) and can reciprocate in the cylinder (2);

an included angle between a first axis (44) of the driving mechanism (4) and a second axis (23) of the cylinder (2) is larger than zero degree and smaller than 180 degrees; or the driving mechanism (4) and the air cylinder (2) are arranged on one side of the transmission mechanism (3) and are arranged in parallel along the thickness direction of the transmission mechanism (3).

2. The portable inflator according to claim 1, wherein the transmission mechanism (3) includes:

the driving mechanism (4) further comprises a body (41) connected with the output end (42), the body (41) and the cylinder (2) are arranged on the shell (33), and the output end (42) extends into the shell (33);

a first gear (31) disposed on the output end (42);

second gear (32), set up in casing (33) and with casing (33) rotate to be connected, the upper surface or the lower surface of second gear (32) are provided with meshing tooth (323), meshing tooth (323) with first gear (31) mesh mutually, second gear (32) are gone up the eccentric stand (34) that is provided with, the one end of piston rod (1) with stand (34) are articulated, piston rod (1) pass casing (33) stretches into in cylinder (2).

3. The portable inflator of claim 2, wherein the housing (33) includes a first mounting flange (3311) and a second mounting flange (3312), the body (41) is fixed to the first mounting flange (3311), the cylinder (2) is fixed to the second mounting flange (3312), and a center line of the first mounting flange (3311) and a center line of the second mounting flange (3312) are disposed at an acute angle.

4. A portable inflator according to claim 2, wherein a relative position of the drive mechanism (4) with respect to the cylinder (2) in a circumferential direction is adjustable.

5. The portable inflator according to claim 4, wherein the housing (33) defines a first mounting slot (3313) extending along a circumferential direction, the output end (42) is slidably disposed through the first mounting slot (3313), the driving mechanism (4) further includes a fixing member (43), and the fixing member (43) fixes the main body (41) to the housing (33).

6. The portable inflator according to claim 5, wherein the body (41) and the cylinder (2) are respectively located at upper and lower sides of the second gear (32).

7. The portable inflator according to claim 5, wherein the housing (33) defines a plurality of circumferentially-arranged mounting holes (3315), and the fixing member (43) fixes the body (41) to one of the mounting holes (3315) so as to fix the driving mechanism (4) at a predetermined position of the housing (33).

8. The portable inflator according to claim 7, wherein the fixing member (43) is an elastic block, the elastic block is disposed on a side of the body (41) opposite to the transmission mechanism (3), and the elastic block can be selectively inserted into any one of the mounting holes (3315).

9. The portable inflator according to claim 1, further comprising a connecting mechanism (5), wherein the connecting mechanism (5) comprises a connecting pipe (51) and a check valve (52), the cylinder (2) is provided with an exhaust port (21), one end of the connecting pipe (51) is communicated with the exhaust port (21), and the check valve (52) is disposed in the connecting pipe (51) and located at the exhaust port (21).

10. The portable inflator of claim 9, further comprising:

the inflation tube (7) comprises a tube body (71) and a connector (72) which are connected, the connector (72) is inserted at the other end of the connecting tube (51), a first annular bulge (721) is arranged on the periphery of the connector (72), and a second annular bulge (511) is convexly arranged inside the connecting tube (51); and

a catch (8) inserted into the connection pipe (51) from one side of the connection pipe (51), the catch (8) and the second annular protrusion (511) clamping the first annular protrusion (721) together.