CN204783514U - Air pump with operation of muscle power - Google Patents

Abstract

The utility model relates to an air pump with operation of muscle power (1), this air pump possess two pump cylinders (24, 25), the pump cylinder then has two studios (35, 36) respectively, on the studio arranges respectively in the middle of and is coupled to one common gas vent (52) under the condition of check valve (63). In addition, every studio (35, 36) also all are connected with the atmosphere through another check valve (65) respectively. Every pump cylinder (24, 25) all include two can the with respect to each other motion under the condition of carrying out power stroke motion (34) jar subassembly (26, 27), the jar subassembly has been injectd studio (35, 36), wherein every pump cylinder (24, 25) can be given air transportation along the stroke direction (34a, 34b) of its power stroke motion (34) common gas vent (52).

Description

With the air pump that muscular force is run

Technical field

The utility model relates to the operation of a kind of muscular force, there is the air pump of two pumping cylinders, described pumping cylinder then comprises first cylinder component be made up of cylinder body and one respectively and has the second cylinder component that is arranged in piston in described cylinder body and a piston rod stretched from described cylinder body, wherein two cylinder components of each pumping cylinder can relative to each other move linearly when execution work stroke movement, and wherein the piston of each pumping cylinder together defines in the process of moving in described working stroke with the cylinder body distributed the first working room changing its volume, wherein these two first working rooms are connected with air when the safety check that intermediate arrangement one prevents air from flowing out respectively, and be connected on a common relief opening when another safety check that intermediate arrangement prevents air from flowing into, and wherein these two pumping cylinders can so synchronously be handled due to the coupling of machinery, thus oppositely alternately expand and reduce the volume of these two the first working rooms.

Background technique

Pumping cylinder such, comprise two vertical orientations from air pump disclosed in DE631152, described pumping cylinder then has can the cylinder body of vertical ground motion, described cylinder body by means of round pulley around wire rope be mechanically coupled each other to make the object of its synchronized movement.Each pumping cylinder defines a working room, and described working room is alternately expanded when distributed cylinder body carries out the motion of vertical working stroke and reduces, for sucking air and flowed to a common relief opening from air.The user of described air pump climb up be permanently connected with described cylinder body trample face, and the handle stretched out from described cylinder body can be caught.

A kind of foot-operated air pump is disclosed by DE1953222A, this air pump has two pump elements that can be out of shape corrugated tube shape, simultaneously can oppositely handle described pump element, for by alternately by these two pump elements to a common relief opening air supply.This do not arrange for these two pump elements manipulation, machinery synchronous.

Disclose a kind of air pump by DE8526803U1, this air pump has two pumping cylinders in parallel, and described pumping cylinder simultaneously and handle in the same way, can provide higher transmission capacity for per time unit.

A kind of pedal air pump is learnt from DE20303417U1, this pedal air pump has at least one to be arranged in piston-cylinder-device between framework and foot treadle, and this pedal air pump has locking mechanism extraly, described locking mechanism allows described foot treadle to be latched in its home position about described framework.

A kind of two-stroke-air pump is learnt respectively from DE202012008309U1 and DE20117316U1, this two-stroke-air pump has a pumping cylinder, and described pumping cylinder is equipped with the working room of two actives and causes air to carry result when carrying out two kinds of possible working stroke motions.

Disclose a kind of training device designed as so-called Treadmills by DE202005002338U1, this training device has two pedals be coupled each other in the mode of motion, and described pedal is trampled by user and can be moved up and down.

Also disclose a kind of training device by DE102007026311A1, this training device has the foot treadle that can deflect in vertical plane, and described foot treadle is provided with handle extraly, for supporting pedal travel.

Model utility content

Task of the present utility model is, provide a kind of can easily handle and with higher efficiency work, with muscular force run air pump.

In order to solve this task, specify in conjunction with starting the feature mentioned, each pumping cylinder is the structural type served a dual purpose, and have as supplementing of described first working room and limited by its piston, the second working room that described first working room changes its volume is equally in reverse in the process of working stroke motion, described second working room is so connected with air when the safety check that intermediate arrangement prevents air from flowing out and is connected on described common relief opening equally when another safety check that intermediate arrangement prevents air from flowing into, air is flowed to described common relief opening by often kind of stroke direction that each pumping cylinder can be moved along its working stroke.

In this way, there is a kind of air pump effectively worked, this air pump has higher output flow, because two kinds of moving direction that two pumping cylinders can move along its working stroke perform delivery strokes and fed through the air of overcompression to described relief opening by one of this Liang Ge working room.Described air pump such as may be used for tyre inflating, and described air pump ensures gas replenishment process and even can competing mutually with the compressor of less electricity thus fast there, but the latter depends on external energy in order to the operation of self.Although the higher efficiency of described air pump and also exist with lightweight construction to realize the feasible program of described air pump, this can transport without any problems between two fields of employment exchanged.First pumping cylinder according to the type constitution of pneumatic linear actuator can realize higher pressure due to its higher resistivity.Air pump, be regarded as advantageous particularly for the design proposal run with pin, be wherein that it is assigned with the foot treadle of self to handle each pumping cylinder.In the corresponding design proposal of described foot treadle, even can provide following feasible program here: support pump to be drawn through journey by the body weight of self and produce extra high inflation pressure thus.

Exemplary as other, for described by muscle of the present utility model run and especially by hand and/or the applicable cases of indulging the air pump run by means of foot operation, can to mention the inflation for bicycle tyre, rubber dinghy, football or camp appliances at this.Because described air pump can run by muscular force and do not rely on electric energy for its operation, so it also can advantageously use in the operational place of any no current joint.

Favourable improvement project of the present utility model is learnt from dependent claims.

In a kind of favourable design proposal, described air pump is equipped with changing valve mechanism, and described second working room and described common relief opening can separate by this changing valve mechanism.User has following feasible program thus: can be selected in two kinds of different running statees and run described air pump, namely act on the larger capacity of conveying with the two-stroke completely of these two pumping cylinders on the one hand, and use an only working room on one's own initiative, for carrying less air quantity on the other hand.Can so be equipped with described air pump, be connected with the relief opening that the working room that common relief opening separates can alternately can utilize with another in other words described in making, and/or be especially connected with air.Latter event causes following result: described second working room does not have function actually, because it only carries out air exchange when not contributing for described common relief opening feed air equally with air.

Described changing valve mechanism advantageously can manned structural type.It especially can be configured to the form of 3/2 directional control valve.

In all embodiments, described air pump is preferably configured as portable structure, and it can be used in the place to use exchanged without any problems.

In a kind of favourable, as the air pump run with pin design proposal, described air pump advantageously has one can place it in ground bearing support, and have two foot treadles that can move relative to described bearing support when performing actuation movement, described foot treadle is respectively equipped with one and tramples face, is wherein assigned with one of these two pumping cylinders for each foot treadle.Each pumping cylinder is added between a foot treadle and described bearing support, and at distributed foot treadle relative to execution work stroke movement during described bearing support motion.Both legs by means of user make described foot treadle move relative to described bearing support by muscular force, and what wherein user can act on described foot treadle with its both feet tramples face.

These two foot treadles are mechanically synchronous in its actuation movement advantageous by coupling mechanism.If impel one of described foot treadle to carry out actuation movement by muscular force, a part for this driving force is just also passed to another foot treadle by so described coupling mechanism, and another foot treadle described is therefore simultaneously same performs preferably reverse actuation movement.The actuation movement of these two foot treadles is passed on described pumping cylinder, and therefore described pumping cylinder obtains driving to carry out its working stroke motion, the working stroke motion that wherein said actuation movement is especially reverse.

Described foot treadle is especially true to be supported in the mode can moved about described bearing support, thus can perform its actuation movement as moving up and down of replacing, and wherein said actuation movement is at this yaw motion especially in plane vertical accordingly.

Described foot treadle is preferably arranged abreast, and can correspondingly be supported on described bearing support round the first clinoid of level along the mode that short transverse deflects.Each pumping cylinder with an one cylinder component with can round separate with described first clinoid, mode that the second clinoid of level deflects is same is supported on described bearing support.Its another cylinder component of each pumping cylinder acts on distributed foot treadle, and being supported on described foot treadle round the mode of the 3rd clinoid deflection, wherein said first, second, and third clinoid is arranged spaced apart relation to each other.By face of the trampling this mode muscular force acting on described foot treadle with both feet, described foot treadle is alternately deflected up and down, the reverse actuation movement of described foot treadle can be caused thus, and correspondingly also cause the working stroke in the same way of described pumping cylinder to move.Realize this point in this way: come to described relief opening air supply along a kind of moving direction by the first working room of a described pumping cylinder and by the second working room of another pumping cylinder described, the second working room along a pumping cylinder described in contrary moving direction is then responsible for being described relief opening air supply together with the first working room of another pumping cylinder described simultaneously.

Be regarded as particularly advantageously, each pumping cylinder is supported on described bearing support with its cylinder body, and the piston rod distributed acts on described foot treadle.In this case, the motion of described working stroke be described in have the second cylinder component of piston rod and piston, relative to the relative movement of described first cylinder component.But, also there is the possibility of carrying out contrary layout in principle, wherein then described second cylinder component only performs the yaw motion round described second clinoid when carrying out the actuation movement of described foot treadle, and described second cylinder component then alternately moves into about described cylinder body and shifts out.

Preferred each foot treadle is so provided with the face of trampling, trample described in making face, be greater than the spacing between described 3rd clinoid and described first clinoid relative to the spacing of the first clinoid.Can realize a kind of crank-motion particularly by this mode, this crank-motion allows to produce steering force that is higher, that move for generation of described working stroke.

Advantageously high overtoping fixing column from described bearing support, this fixing column can allow the user of described air pump when it to stand in trampling on face of described foot treadle with both legs in the process running described air pump promptly.In this respect advantageously, described fixing column has handle.Described fixing column is not necessarily cylinder according to the meaning of a word, and it also such as can have frame structure without any problems.

If described air pump is equipped with changing valve mechanism, so described air pump is just advantageously on described fixing column when being conducive to crawl.

Also advantageously, described air pump is equipped with the pressure display organ be connected with described relief opening enduringly, is especially equipped with pressure meter with low cost.With such pressure display organ, can to have the object of stand-by air filling, current inflation pressure monitors.

Accompanying drawing explanation

By means of accompanying drawing, the utility model is explained in detail below.Accompanying drawing illustrates:

Fig. 1 be described by of the present utility model, with muscular force run air pump a kind of preferred design proposal, sideling from the perspective view seen above;

Perspective view that Fig. 2 is the air pump of Fig. 1, that see from behind sideling;

Fig. 3 is the front view of the air pump of Fig. 1 and 2;

Fig. 4 is the dorsal view of described air pump;

Fig. 5 is the side view of described air pump;

Fig. 6 is the plan view seen from above of described air pump; And

Fig. 7 is described air pump, schematic diagram for being described interaction functionally and the pneumatic wiring of each assembly.

Embodiment

The air pump represented at its entirety by reference number 1 is configured to handle by muscular force, and is especially designed to run with pin.The latter means, user advantageously can run described air pump when using both feet by muscular force.In these two kinds of embodiments, even there is the feasible program climbing up described air pump for the user, thus extraly the gravity of self of user can be used as steering force, this permission runs more easily.

Described air pump 1 has the bearing support 2 of arbitrary structural type, and this bearing support is configured to frame-like in the described embodiment.Other structural type of described bearing support 2 can be considered equally, such as there is the structural type of the structure of tabular.

Described bearing support 2 exemplarily comprises two longerons 3 arranged abreast with a determining deviation, and described longeron extends along the axial direction of the longitudinal axis 4 of described air pump 1.In the common use position of described air pump 1, described longitudinal axis 4 is flatly directed.

Described two longerons 3 with measure along the axial direction of described longitudinal axis 4, spacing is to each other connected to each other by means of transverse arm 5 above and transverse arm 6 below, thus produces a kind of structure of stable frame-like.

Described air pump 1 has two foot treadles 7,8, is also referred to as the first foot treadle 7 and crus secunda pedal 8 below described foot treadle.The first clinoid 12 that each foot treadle in these foot treadles 7,8 flatly can both stretch in the preferred use position at described air pump 1 deflects.Each foot treadle 7,8 can perform round described first clinoid 12 yaw motion 13 delineating out by double-head arrow in Figure 5 in the vertical plane 14 perpendicular to described first clinoid 12 thus.

These two foot treadles 7,8 along delineate out by double-head arrow, arrange abreast with certain spacing perpendicular to the horizontal direction 15 of described longitudinal axis 4 orientation.In this way, described foot treadle can deflect, and does not influence each other.

Described two first clinoids 12 are advantageously arranged coaxially with each other.They exemplarily with described before the longitudinal axes coincide of transverse arm 5.Transverse arm 5 before described especially has the support rod 16 be fixed in tip side on two longerons 3, and these two foot treadles 7,8 are inserted in described support rod 20 in the mode that can reverse or deflect with axle sleeve 20 respectively.

Each foot treadle 7,8 has longitudinal tensile strain that is that preferably bend or bending from described first clinoid 12s towards the direction at the back side of described bearing support 2.Each foot treadle 7,8 is equipped with the face of trampling 17 pointing to top with a determining deviation relative to described first clinoid 12, this face of trampling preferably is configured to the constituent element of the pedal 17a of tabular.Each face 17 of trampling is suitable for being trampled with a pin by the user of described air pump 1.When using described air pump 1, user tramples on one of face 17 at these two by its every feet station.

Described air pump 1 advantageously equipped with the fixing column 18 protruded upward from described bearing support 2.In the process using described air pump 1, the user of described air pump can firmly grasp described fixing column 18 with singlehanded or both hands.Described fixing column 18 is exemplarily simple square tubular, and this square tubular is fixed on described bearing support 2 in the region of its downside.Described fixing column 18 is advantageously provided with handle 19 with vertical spacing above described bearing support 2, and the user of described air pump 1 can to hold with a firm grip described handle 19 with singlehanded or both hands.In the described embodiment, described handle 19 is made up of the clavate handle that two are stretched out along horizontal direction from described fixing column 18.

Preferred described fixing column 18 protrudes upward between these two foot treadles 7,8.Described fixing column 18 is exemplarily fixed on the middle strut 23 of described bearing support 2 with the end section 22 below it for this reason, described middle strut to be arranged between described two longerons 3 and extend to along described longitudinal direction 4 from the crossbeam 5 before described there described after crossbeam 6.

Described air pump 1 is equipped with two pumping cylinders 24,25, is also referred to as the first pumping cylinder 24 and the second pumping cylinder 25 below described pumping cylinder.The principles of construction of these pumping cylinders 24,25 and the principles of construction of pneumatic linear actuator similar.

Each pumping cylinder 24,25 has the first cylinder component 26, and this first cylinder component is made up of cylinder body 28.In addition, each pumping cylinder 24,25 has the second cylinder component 27, and this second cylinder component is piston rod-element of construction and this second cylinder component is made up of with a piston rod 33 be connected with described piston 32 regularly a piston 32.Described first and second cylinder components 26,27 can relative to each other be moved when performing the linear working stroke motion 34 represented by double-head arrow.

Described piston 32 is in the inside of described cylinder body 28, and its inner space is divided into the first working room 35 and the second working room 36 in the axial direction when sealing.The described piston rod 33 be fixed on piston 32 can slide mobile on front 37, and stretches from distributed cylinder body 28 when sealing.

The execution of described working stroke motion 34 causes following result: by the smaller volume of a working room 35 or 36 described in moving direction, the volume of described another working room 36,35 corresponding then expands simultaneously.

In the described embodiment, corresponding working room is called as the second working room 36, and described piston rod 33 extends through this working room.Be shifted out from distributed cylinder body 28 along piston rod 33 described in a kind of moving direction, this moving direction is called as and shifts out direction 34a, and described contrary moving direction is then called as and moves into direction 34b.These two kinds of movement directions are illustrated by arrow in the figure 7.

Described first pumping cylinder 24 is added between described bearing support 2 and described first foot treadle 7, and described second pumping cylinder 25 is added between described bearing support 2 and described crus secunda pedal 8.A corresponding cylinder component in this this two cylinder components 26,27 is supported on described bearing support 2, and another cylinder component 27,26 corresponding is supported on distributed foot treadle 7,8.So carry out described layout in the described embodiment, the cylinder body 28 of described first cylinder component 26 is fixed on described bearing support 2, and the piston rod 33 of described second cylinder component 27 is fixed on distributed foot treadle 7,8.In both of these case, all so relate to a kind of hinged means of fixation, the assembly being hinged on top of one another described in making can relative to each other deflect.

Therefore, the cylinder body 28 of each pumping cylinder 24,25 is so supported on described bearing support 2, and it can be deflected round the second clinoid 38 parallel with described first clinoid 12 relative to described bearing support 2.According to the preferred user of described air pump 1 to, described second clinoid 38 equally flatly stretches.Therefore, each pumping cylinder 24,25 can deflect round its second clinoid 38 relative to described bearing support 2 in vertical plane.

Described second clinoid 38 is preferably arranged coaxially with each other.Described second clinoid 38 exemplarily with the longitudinal axes coincide of another root support rod 39, described support rod 39 extends between described two longerons 3 along described horizontal direction 15, and these two cylinder bodies 28 are inserted in described support rod 39 in the mode that can rotate or deflect with bearing bead 40 respectively.

The piston rod 33 of each pumping cylinder 24,25 is so installed on distributed foot treadle 7,8, and it can be deflected round the 3rd clinoid 42 being parallel to described first and second clinoid 12,38 stretching, extension relative to described foot treadle 7,8.

Each foot treadle 7,8 can be called as pump unit 43,44 together with the pumping cylinder 24,25 distributed for it, and next described pump unit is also referred to as the first pump unit 43 and the second pump unit 44.Described first, second and third clinoid 12,38,42 for corresponding pump unit 43,44 distribution defines a hinged triangle (Gelenkdreieck), and is in a leg-of-mutton angle point.At this, when not depending on the current inflection point of described foot treadle 7,8, wheelbase between described first clinoid 12 and described second clinoid 38 is constant, and the wheelbase between described first clinoid 12 and described 3rd clinoid 42 also keeps constant.Wheelbase only between described second clinoid 38 and described 3rd clinoid 42 changes, and changes due to following situation or rather: described piston rod 33 is pulled out or is pushed in described cylinder body 28 by deflection direction by from described cylinder body 28 when carrying out yaw motion 13.

Described piston rod 33, the motion that therefrom produces already mentionedly shifts out direction 34a along described or move 34 along the working stroke of described immigration direction 34b.Thus, described working stroke motion 34 is exemplarily performed relative to described the first cylinder component 26 only performing a kind of yaw motion about bearing support 2 by described second cylinder component 27.

Preferred each pumping cylinder 24,25 is vertically arranged in the below of distributed foot treadle 7,8, and this can realize size closely.

Because drive described cylinder component 26,27 by described yaw motion 13, described yaw motion 13 is also referred to as actuation movement 13 below.

Preferred described air pump 1 is equipped with the coupling mechanism 45 of machinery, and the coupling mechanism of described machinery ensures the synchronous deflection of described foot treadle 7,8 and therefore also ensures the synchronous manipulation for these two pumping cylinders 24,25.The second cylinder component 27 be installed in described in described coupling mechanism 45 especially makes on foot treadle 7,8 performs reverse working stroke motion 34 all the time.If described second cylinder component 27 moves along the described direction 34a that shifts out, the working stroke motion 34 of another the second cylinder component 27 described so is simultaneously carried out along described immigration direction 34b, and vice versa.About described embodiment, specifically that is, the expansion of the first working room 35 of described first pumping cylinder 24 is along with the reducing of volume of the first working room 35 of described second pumping cylinder 25, and vice versa for this point.In addition, the reducing of volume of the second working room 36 of described first pumping cylinder 24 is coupled with the expansion of the volume of the second working room 36 of described second pumping cylinder 25 forcibly, and vice versa.

This for making the working stroke of described both sides move 34 synchronous pressure couplings in order to obtain, described coupling mechanism 45 such as can realize with the form of driving mechanism and/or with the form of leverage.In the described embodiment, described coupling mechanism 45 originally realized with one-tenth cheap especially and comprised tow rope 46, this tow rope is separately fixed on one of described foot treadle 7,8 with its reciprocal end 46a, 46b, and described tow rope is wound around by round steering component 47, described steering component 47 is such as turning roll.

Preferred described steering component 47 is fixed on described fixing column 18 relative to described foot treadle 7,8 with height spacing, thus guide described tow rope 46 above round described steering component 47 and guide described tow rope 47 downwards in the both sides of described steering component 47, for being especially fixed on distributed foot treadle 7,8 near described 3rd clinoid 42.

If make one of described foot treadle deflect down when performing point to actuation movement 13 downwards, then drive the tow rope 46 in the face that is fixed thereon, the foot treadle 8,7 be fixed on another end is drawn high by it.Thus can be confined to trample extruding force that face 17 applies to point to downwards in this about described for the operation of described air pump 1, thus not need to take also to make the user of described air pump 1 draw high the measure of described foot treadle 7,8.

Each foot treadle 7,8 advantageously has two first and second pedal arm 48,49 be connected to each other rigidly.Described first pedal arm 48 extends being in the region between described first clinoid 12 and described 3rd clinoid 42.Described second pedal arm 49 is connected in described first pedal arm 48, and freely stop (freiendend) be stretched over the back side of described air pump 1, wherein said trample face 17 to be arranged in described second pedal arm 49 and therefore relative to described first clinoid 12 than having larger spacing relative to described 3rd clinoid 42.Trample the driving force imported in described foot treadle 7,8 on face 17 about the user by described air pump 1 produce a kind of lever transmission ratio described thus.Thus higher driving force can be caused with the consumption of less power by means of described air pump 1, for generation of described working stroke motion 34.

Each pumping cylinder in these two pumping cylinders 24,25 is the structural type served a dual purpose, and correspondingly can along its working stroke move 34 two kinds of moving direction cause for the air fed air course of conveying of relief opening 52 to described air pump 1.Described air pump 1 has a common relief opening 52, and first and second working room 35,36 of these two pumping cylinders 24,25 is connected on described relief opening 52 in parallel circuit.

As especially can being clear that from the circuit of Fig. 7, the first working room 35 of described first pumping cylinder 24 is among fluid is connected by the first air flue 53 and described outlet 52 jointly.Second air flue 54 couples together same for the second working room 36 of described first pumping cylinder 24 with described common relief opening 52.After this, a kind of connection is carried out through the changing valve mechanism 57 be in the first running position in the described embodiment, described changing valve mechanism 57 is arranged in connecting passage 58, and described common relief opening 52 couples together with described second air flue 54 by described connecting passage 58.

Described common relief opening 52 couples together with the first working room 35 of described second pumping cylinder 25 by the 3rd air flue 55.Among second working room 36 of described second pumping cylinder 25 is in described common relief opening 52 is equally connected by the 4th air flue 56, if occupy can the first running position as seen from Figure 7 in changing valve mechanism 57.For this reason, described 4th air flue 56 be connected at engagement positio 62 place as described second air flue 54 described in lead on the connecting passage 58 of common relief opening 52.

Arrange the safety check 63 of self in every bar air flue in described four air flues 53,54,55,56, below this safety check, for the purpose of better distinguishing, be also referred to as the first safety check 63.Each first safety check 63 of design like this, makes it allow air from institute's assignment room 35,36 towards the flowing of the direction of common relief opening 52, but prevents from flowing in the opposite direction.Each safety check 63 is advantageously provided with spring-loaded check valve element, described check valve element is generally kept in a closed position by described elastic force, if there is from aspect, institute's assignment room 35 or 36 air pressure that improve, so described check valve element just can move to release position from the position of described closedown.

In addition, from the air intake passage 64 of each working room 35,36 extraction one self, described air intake passage leads to air, and a same safety check is disposed in the way of described air intake passage 64, and described safety check is also referred to as the second safety check 65 below in order to better distinguish.Every second safety check 65 of design like this, make it allow air to flow to the inside of institute's assignment room 35,36 from air, but prevention is flowed in the opposite direction.Described second safety check 65 advantageously equipped with in spring-loaded situation by the check valve element be tightened in advance in closed position.

Described air flue 53-56 and described air intake passage 64 at least can partly realize with the form of the fluid circuit 66 delineating out in Fig. 1 is to 6.Such as described fluid circuit 66 realizes as flexible pipe.Described some safety check 63,65 can be disposed in the way of one or more of fluid circuit 66 in principle, but are preferably configured as the constituent element of described pumping cylinder 24,25, and are advantageously arranged in side or the inside of described cylinder body 28 at this.

Due to the connection of described fluid, each pumping cylinder 24,25 can along its working stroke move 34 often kind of stroke direction air is flowed to described common relief opening 52.In addition ensure at this, obtain synchronous working stroke motion 34 due to described, described relief opening 52 all the time simultaneously by a described corresponding pumping cylinder 24 or 25 the first working room 35 and supply the air through overcompression by the second working room 36 of described another pumping cylinder 24,25 corresponding.

Often kind of working stroke motion 34 reduces to be associated with the volume enlargement of a corresponding working room 35 or 36 and the volume of another working room 36,35 corresponding for each pumping cylinder 24,25.Because described suction acts on, ambient air passes through distributed air intake passage 64 and flow in corresponding working room 35 or 36, and the volume of corresponding working room 35 or 36 can expand.Meanwhile, the air be in the working room 35 or 36 reduced is squeezed, and passes connected air flue 53-56 and be fed to described common relief opening 52.

A kind of operation phase is shown in the diagram with the arrow drawing dotted line, be shifted out from described first cylinder component 26 at the second cylinder component 27 of the first pumping cylinder 24 described in this operation phase, wherein simultaneously because the second cylinder component 27 of the second pumping cylinder 25 described in the synchronous effect that obtained by described coupling mechanism 45 is moved in the first distributed cylinder component 26.Be in the second working room 36 of described first pumping cylinder 24 at the same time and the air be in the first working room 35 of described second pumping cylinder 25 is squeezed by towards described relief opening 52.Simultaneously from air by air intake in another working room corresponding.

And if then change the moving direction of described working stroke motion 34, then air flows according to the dotted line of Fig. 7.At this, air is flowed to described common relief opening 52 from the first working room 35 of described first pumping cylinder 24 from the second working room 36 of described second pumping cylinder 25.Also overlapping with this process is again the process sucking air relative to current another working room about its volume enlargement.

The pressure display organ 69 be connected with described relief opening 52 enduringly allows the air pressure controlling constantly to exist on described common relief opening 52.In this way, especially can monitor the current inflation pressure of object or check, described object be connected on described relief opening 52 to fill with air.

Advantageously be assigned with a bindiny mechanism 67 for described relief opening 52, this bindiny mechanism allows to be connected with the object needing to be inflated airtightly, for realizing leak free aerification function.Described bindiny mechanism 67 is advantageously connected on described relief opening 52 by means of pliable and tough air conduit 68.

Described pressure display organ 69 is advantageously arranged in the region on top when advantageously in sight line on described fixing column 18.

The changing valve mechanism 57 of optional existence is advantageously to be conducive to height placement promptly on described fixing column 18.But described changing valve mechanism 57 also can be installed on other position of described air pump 1 in principle.

By means of described changing valve mechanism 57, the method for operation of described air pump 1 can be changed, and or rather in the method for operation that can change described air pump 1 between the first running position as seen from Figure 7 and the second running position being different from this.In described first running position, all four working rooms 35,36 are connected on described common relief opening 52.Described changing valve mechanism 57, in the second running position of being different from this, these two the second working rooms 36 separate with described common relief opening 52, and are connected with air R in other words.Rear a kind of connection procedure exemplarily carries out in the following manner: described connecting passage 58, the first passage branch 58a that is always stretched over described changing valve mechanism 57 from engagement positio 62 is connected with environment R by described changing valve mechanism 57, the second channel branch 58b being simultaneously stretched over described relief opening 52 from described changing valve mechanism 57 is then closed.

In described second running position, only work in first working room 35 of these two pumping cylinders 24,25, and supply pressurized air alternately to described suction port 52.Only with air, air exchange is carried out for described second working room 36.

The flexible program a kind of with low cost of described air pump 1 does not comprise changing valve mechanism 57.Then be directly connected on described relief opening 52 the same as described first air flue 53 with described 3rd air flue 55 here, described connecting passage 58 is opened constantly, or described second air flue 54 and described 4th air flue 56 correspondingly independent of one another.

Claims (14)

1. with the air pump that muscular force is run, there are two pumping cylinders (24, 25), described pumping cylinder comprise first cylinder component (26) be made up of cylinder body (28) respectively and one there is the second cylinder component (27) that is arranged in the piston rod (33) that the piston (32) and in described cylinder body (28) stretches out from described cylinder body (28), wherein each pumping cylinder (24, 25) these two cylinder components (26, 27) can relative to each other move linearly when execution work stroke movement (34), and wherein each pumping cylinder (26, 27) piston (32) and the cylinder body (28) distributed together define described working stroke move (34) process in change first working room (35) of its volume, wherein these two first working rooms (35) are connected with air when the safety check that intermediate arrangement prevents air from flowing out (65) respectively and are connected to when another safety check (63) that intermediate arrangement prevents air from flowing on a common relief opening (52), and wherein these two pumping cylinders (24, 25) can so synchronously handle due to the coupling of machinery, thus oppositely alternately expand and reduce the volume of these two the first working rooms (35), it is characterized in that, each pumping cylinder (24, 25) be all the structural type served a dual purpose, and as supplementing of described first working room (35), there is one to be limited by its piston (32), the second working room (36) that described first working room (35) changes its volume is equally in reverse in the process of described working stroke motion (34), described second working room is so connected with air when the safety check that intermediate arrangement prevents air from flowing out (65) and is connected on a common relief opening (52) equally when another safety check (63) that intermediate arrangement prevents air from flowing into, make each pumping cylinder (24, 25) can move along its working stroke often kind of stroke direction (34a of (34), 34b) air is flowed to described common relief opening (52).

2. by air pump according to claim 1, it is characterized in that, this air pump has one advantageously can manned changing valve mechanism (57), described second working room (36) and described common relief opening (52) can be separated by this changing valve mechanism, optionally to set the single functional mode worked of these two pumping cylinders (24,25), wherein said second working room (36) is advantageously connected with air in the state of separating with described common relief opening (52).

3. by the air pump described in claim 1 or 2, it is characterized in that, this air pump is configured to run, wherein in order to handle each pumping cylinder (24,25) and be that it is assigned with the foot treadle (7,8) of self with pin.

4. by the air pump described in claim 1 or 2, it is characterized in that, this air pump have one for be placed on that ground bearing support (2) and two can move relative to described bearing support (2) when performing actuation movement (13), be respectively equipped with the foot treadle (7,8) that is trampled face (17), wherein between described bearing support (2) and each foot treadle (7,8), add one of these two pumping cylinders (24,25).

5. by air pump according to claim 4, it is characterized in that, these two foot treadles (7,8) mechanically obtain synchronously by coupling mechanism (45) in its actuation movement (13), for obtaining the reverse actuation movement (13) of these two foot treadles (7,8).

6. by air pump according to claim 4, it is characterized in that, described foot treadle (7,8) so obtains supporting in the mode can moved about described bearing support (2), and its actuation movement (13) can be moved upward and move downward perform as what replace.

7. by air pump according to claim 4, it is characterized in that, described foot treadle (7, 8) arrange abreast and obtain supporting in the mode that can deflect along short transverse round first clinoid (12) of level respectively on described bearing support (2), wherein each pumping cylinder (24, 25) all with an one cylinder component (26) can separate round with described first clinoid (12), the mode that second clinoid (38) of level deflects is supported on described bearing support (2) equally, and with its another cylinder component (27) with can round separating with described second clinoid (38) with described first clinoid (12), the mode that 3rd clinoid (42) of level deflects is supported in distributed foot treadle (7, 8) on.

8. by air pump according to claim 7, it is characterized in that, each pumping cylinder (24,25) is supported in described bearing support (2) in the mode that can deflect with its cylinder body (28) and goes up and be supported on described foot treadle (7,8) with its piston rod (33).

9. by the air pump described in claim 7 or 8, it is characterized in that, face (17) trampled by each foot treadle (7,8), described in trample face be greater than spacing between described 3rd clinoid (42) and described first clinoid (12) relative to the spacing of described first clinoid (12).

10., by air pump according to claim 4, it is characterized in that, the fixing column (18) that high overtoping one can allow the user of described air pump (1) firmly grasp from described bearing support (2), this fixing column advantageously has handle (19).

11. by air pump according to claim 10, it is characterized in that, this air pump has changing valve mechanism (57), described second working room (36) and described common relief opening (52) can be separated by this changing valve mechanism, optionally to set the single functional mode worked of these two pumping cylinders (24,25), wherein said second working room (36) is connected with air in the state of separating with described common relief opening (52) and wherein said changing valve mechanism (57) is arranged on described fixing column (18).

12. by the air pump described in claim 1 or 2, it is characterized in that, air flue (53,54,55,56) is drawn from each working room (35,36) of these two pumping cylinders (24,25), described air flue leads to described common relief opening (52) and correspondingly arranges in described air flue and prevents air from flowing in institute's assignment room (35,36) and one of safety check (63) allowing air to circulate in the opposite direction, and wherein these safety check (63) are advantageously configured to the constituent element of described pumping cylinder (24,25).

13. by the air pump described in claim 1 or 2, it is characterized in that, the air intake passage (64) leading to air is drawn from each working room (35,36) of these two pumping cylinders (24,25), prevent that air flows out and one of safety check (65) allowing air to circulate in the opposite direction correspondingly to be arranged in described air intake passage (64), wherein these safety check (65) are advantageously configured to the constituent element of described pumping cylinder (24,25).

14. by the air pump described in claim 1 or 2, and it is characterized in that, described air pump has the pressure display organ (69) be connected with described relief opening (52) enduringly.