CN2344580Y

CN2344580Y - Modified type pump

Info

Publication number: CN2344580Y
Application number: CN 98240212
Authority: CN
Inventors: 王大进
Original assignee: DADA INDUSTRY Co Ltd
Current assignee: DADA INDUSTRY Co Ltd
Priority date: 1998-08-27
Filing date: 1998-08-27
Publication date: 1999-10-20
Anticipated expiration: 2008-08-27

Abstract

The utility model relates to a modified type pump, comprising an outer cylinder seat, a piston rod, a fixing seat, a handle, etc., wherein, the bottom of the outer cylinder seat is provided with a one-way valve; a piston center of the piston rod is provided with the one-way valve communicated the inner space of the piston rod; a side edge of a piston is provided with a radial one-way valve and a decompression one-way valve which is axially penetrated; the one-way valve is arranged in the fixing seat engaged with the piston rod and is communicated with an air outlet at the side edge. By the design, the modified type pump can obtain a pumping function at each pulling and pressing operation. The utility model not only can increase pumping speed, but also can reduce the pumping action times of repeatedly pulling and pressing. Thus, the modified type pump obtains the effect of labor saving.

Description

The improved type pump

The utility model relates to a kind of pump, refers to that especially a kind of having concurrently inflate and the improved type pump of laborsaving effect fast.

Present common pump, with regard to its design is the change that belongs on the external form mostly, and internals is under the identical situation of application principle, there is no any change, the design that it is general, be when drawing on the piston in the pump, make the extraneous space of air in suction port enters pump, when piston presses down, be about to air compression, and discharge rapidly, so when inflating from the air outlet, must pressurized gas be entered fast (for example: tire etc.) be inflated thing with the action of drawing, pressing down the pump inner carrier on continuous.

But learn by the said structure design, when at present existing pump draws on piston, be to be neutral state, this moment and first gas enter and are inflated in the thing, and must be when piston is pressed down, pressurized gas can be compeled in people's tire, therefore, it is not good that it inflates efficient, especially must with one draw, a sampling action of pressing, pressurized air can be compeled people's tire mode once, so existingly inflate the shortcoming that ubiquity is time-consuming, require great effort.

The purpose of this utility model is to solve the shortcoming of existing time-consuming, the effort of existing pump, provide a kind of have inflate fast and the improved type pump of laborsaving effect.This design mainly is to make pump in the last do action that draws, presses down, all can be for being inflated the action that thing is inflated, and when being inflated thing and gradually being high pressure conditions, more can make piston be easy to draw in addition in the labour-saving mode.

The technical solution of the utility model is: a kind of improved type pump, this pump have an outer cylinder base, are provided with a piston rod in the outer cylinder base, piston rod connects in body of rod top and establishes handle, the urceolus top is provided with cover, and the piston of piston rod is arranged in the urceolus inner space of outer cylinder base, is characterized in:

Be provided with a fixed base between the body of rod of piston rod and handle, form mesopore in the fixed base, be provided with one-way valve in the mesopore, the upper end forms closed shape, and the fixed base side is provided with passage, the air outlet that is communicated with mesopore;

Piston rod is provided with through hole in its piston centre, through hole is communicated with the inner space of the body of rod, and be provided with one-way valve in the through hole, the piston side is provided with radial communication to the side through hole of through hole and the relief hole that axially runs through piston, is provided with one-way valve in side through hole and the relief hole;

Cylinder base is provided with one-way valve in the bottom in addition, cover is provided with one-way valve, handle drives piston rod up during start, air is promptly entered by the one-way valve of outer cylinder base bottom, and the space between piston and card lid is compressed gradually, high-pressure air is discharged through the body of rod, the fixed base place of piston rod, and handle is when pressing down, make the high-pressure air between piston and base directly discharge, and air is entered in the urceolus via the one-way valve of cover from king-rod, fixed base place.

This shows that above-mentioned global design is a kind of bidirectional pump structure, be available for users to when inflating more quick and more laborsaving.

Below in conjunction with accompanying drawing specific structural features of the present utility model furtherly and purpose:

Fig. 1: be perspective exploded view of the present utility model.

Fig. 2: be combination generalized section of the present utility model.

Fig. 3: be piston generalized section of the present utility model.

Fig. 4: the generalized section that is piston other direction of the present utility model.

Fig. 5: be the action schematic representation when pulling is done on the utility model.

Fig. 6: the action schematic representation when being the utility model pressing action.

Fig. 7: being the utility model is high pressure conditions being inflated thing, when pulling on the piston is done, and the section action schematic representation of pump other direction.

Please referring to Figure 1 and Figure 2, pump of the present utility model consists predominantly of members such as outer cylinder base 10, piston rod 20, fixed base 30 and handle 40.

Wherein outer cylinder base 10 has a microscler hollow urceolus 11, these urceolus 11 bottoms are provided with a base 12 that is available for users to foot-operated press fit, again, outer cylinder base 10 bottoms are provided with one and connect to the suction port 13 of urceolus 11 inner spaces from the outside, in this suction port 13 and be provided with an one-way valve 131, air only can be entered in the urceolus 11 from the outside; In addition, outer cylinder base 10 is provided with cover 14 and stuffing box gland 15 in urceolus 11 tops, makes the urceolus 11 inner confined spaces that form, and inflates moving part for piston rod 20 at this confined space and does; In above-mentioned, cover 14 is provided with the inlet hole 141 that runs through, and in the inlet hole 141 and be provided with an one-way valve 142, air only can be entered from cover 14 outsides; Establish several and the corresponding open-work 151 of cover 14 inlet holes 141 on the stuffing box gland 15; Above-mentioned one-way valve 131, one-way valve 142 can be the member that steel ball, spring etc. are formed, and make its flow direction by air pressure difference control air.

Piston rod 20 sets firmly a piston 22 by a body of rod 21 bottoms and is constituted, please referring to shown in Figure 2, wherein the body of rod 21 is the type body of hollow shape, and piston 22 is provided with a through hole 221 that is communicated with the body of rod 21 inner spaces in centre, these through hole 221 bottoms also are provided with an one-way valve 23, and one-way valve 23 can be the compostle member that steel ball cooperates spring, uses air and can enter to the body of rod 21 inner spaces from piston 22 bottoms; In addition, piston 22 side circumferential surfaces two corresponding end are provided with the side through hole 222 that radially connects to through hole 221, as shown in Figure 3, in the side through hole 222 and be provided with one-way valve 230, use making air enter to the body of rod 21 inner spaces through side through hole 222; Again, piston 22 is provided with at least one relief hole 223 that axially runs through piston 22 and be positioned at through hole 221 sides, as shown in Figure 4, also be provided with one-way valve 231 in the relief hole 223, use air can from top to bottom be given vent to anger via relief hole 223, above-mentioned one-way valve 230 and one-way valve 231 can be steel ball and cooperate cluster spring to be located at the design of a cylinder, use the flow direction of the effect control air that utilizes air pressure difference.

Fixed base 30 can be design cylindraceous, the outer periphery face place on its top can form the design of fastening part 31, and centre forms a mesopore 32, the upper and lower end of mesopore 32 can be the design of screw, wherein going up screw 321 places can connect and establish a pressure gauge 34, following screw 322 places then can be connected with the body of rod 21 of piston rod 20, and in the mesopore 32 and be provided with the one-way valve 323 of from bottom to top air inlet only, one-way valve 323 can be the compostle member that steel ball cooperates spring, and one-way valve 323 can be opened and closed by air pressure difference control; Again, fixed base 30 is established an air outlet hole 33 at mesopore 32 sides, this air outlet hole 33 also is communicated to the one-way valve 323 tops place of mesopore 32 with a passage 331, and the outboard end of air outlet hole 33 can connect and establishes a conduit 35 with connecting head 36, uses and is inflated thing and is connected pipeline as gas transmission; 40 liang of pleurapophysis of handle are established the grip part 41 that grips for hand, centre then forms the matching hole 42 of a cooperation fixed base 30, pressure gauge 34, matching hole 42 protuberances 421 interior and formation and fixed base 30 fastening parts 31 corresponding matching design, and make fixed base 30 and handle 40 fixed one.

When group is established, please referring to shown in Figure 2, earlier piston rod 20 is put in the urceolus 11 of the outer cylinder base 10 of people, be mounted on urceolus 11 tops with cover 14 fitted seal cover 15 again, make the piston 22 of piston rod 20 be limited in the confined space of urceolus 11 start up and down, and the inside of urceolus 11 is airtight and be divided into upper gas chamber 16 and lower chamber 17 for piston office with pressurized air; Secondly, fixed base 30 is fixedly arranged on the body of rod 21 of piston rod 20, is mounted on pressure gauge 34 and handle 40 etc. in regular turn in fixed base 30 upper ends again, make fixed base 30 mesopores 32 upper ends form closed shape, can form pump of the present utility model.

About the start situation of inflating of the present utility model, supposing to be inflated thing is that low-pressure state is an initial state, please cooperate referring to shown in Figure 5, when drawing on the handle 40, extraneous air promptly enters the lower chamber 17 of urceolus 11 from the suction port 13 of outer cylinder base 10, at this moment, the one-way valve 23 of piston 22 bottoms is closed, in addition the one-way valve 142 at cover 14 inlet holes 141 places seals at once, stops air and enters upper gas chamber 16 and begin to be compressed; Secondly, high-pressure air is pushed the one-way valve 230 at piston 22 side through hole 221 places open, make high-pressure air push one-way valve 323 in fixed base 30 mesopores 32 open via the body of rod 21 inner spaces of piston rod 20, high-pressure air is delivered to conduit 35 places of air outlet hole 33, to the action that thing is inflated that is inflated of low pressure.

When handle 40 presses down, please cooperate referring to shown in Figure 6, the one-way valve 131 at inlet hole 13 places of outer cylinder base 10 is closed, air in the lower chamber 17 are compressed and push the one-way valve 23 of piston 22 through holes 221 bottoms open, make pressurized air via the body of rod 21 inside, fixed base 30 is delivered to conduit 35 places of air outlet hole 33, the action that thing is inflated that is inflated to low pressure, at this moment, the one-way valve 230 at piston 22 side through hole 221 places is closed, extraneous air enters upper gas chamber 16 by cover 14 inlet holes 141 places in addition, the user can be on one, under the sampling action once, to being inflated the action of inflating that thing carries out secondary, inflate the speed multiplication and make.

When being inflated thing is the state more than the pressure during the lasting inflation of pump is, please cooperate referring to shown in Figure 5, when drawing on the handle 40, extraneous air promptly enters the lower chamber 17 of urceolus 11 from the suction port 13 of outer cylinder base 10, in addition the air in the upper gas chamber 16 also are compressed and simultaneously via piston rod 20, fixed base 30 enters and is inflated thing, but continue to be inflated and gradually be high pressure conditions because of being inflated thing, the air of upper gas chamber 16 is difficult for being compressed being forced into and is inflated in the thing, and make handle 40 than drawing on difficult the continuing, please cooperate referring to Fig. 4 and shown in Figure 7, because the air pressure in the lower chamber 17 is lower than the air pressure in the upper gas chamber 16, at this moment, pressurized air in the upper gas chamber 16 is promptly pushed the one-way valve 231 at piston 22 relief holes 223 places open and is flowed in the lower chamber 17, to reduce the air pressure of upper gas chamber 16, make handle 40 be easy to draw, in addition, the air pressure that is higher than upper gas chamber 16 because of the air pressure that is inflated thing, so the one-way valve 323 in fixed base 30 mesopores 32 closed shape, afterwards, again by the air in the pressing action compression lower chamber 17 of handle 40, continue being inflated the action that thing is inflated, via the above-mentioned flowing mode of doing, tool labour-saving effect when inflating.

Illustrate as can be known that by above-mentioned architectural feature and usage operation design of the present utility model possesses following advantage:

1, increase the speed of inflating: the utility model is by the bidirectional pump structural design, can be on handle one, one Under a sampling action in, can finish twice the action of inflating, inflate efficient and have the effect of multiplication so make.

2, laborsaving: same as above, the utility model on one, sampling action once, can finish twice dozen Pneumatic work so except increasing the speed of inflating, more can reduce repeatedly and draw, press and inflate the number of times of action, and reaches The labour-saving effect, in addition, design of the present utility model is for the thing that is inflated that forms gradually high pressure, can be when inflating, Move into the action of lower chamber by the compressed air of upper chamber, allow the user be easy to and to draw on the handle, again to press down Moving inflating is so have the labour-saving effect when inflating.

Claims

1, a kind of improved type pump, this pump has an outer cylinder base, is provided with a piston rod in the outer cylinder base, and piston rod connects in body of rod top and establishes handle, and the urceolus top is provided with cover, and the piston of piston rod is arranged in the urceolus inner space of outer cylinder base, it is characterized in that:

Be provided with a fixed base between the body of rod of piston rod and handle, form mesopore in the fixed base, be provided with one-way valve in the mesopore, the upper end forms closed shape, and the fixed base side is provided with passage and the air outlet that is communicated with and is positioned at the one-way valve top with mesopore;

Piston rod is provided with through hole in its piston centre, through hole is communicated with the inner space of the body of rod, and be provided with one-way valve in the through hole, the piston side circumferential surface is provided with radial communication to the side through hole of through hole and the relief hole that axially runs through piston, is provided with one-way valve in side through hole and the relief hole;

Cylinder base is provided with one-way valve in the bottom in addition, cover is provided with one-way valve, handle drives piston rod up during start, air is promptly entered by the one-way valve of outer cylinder base bottom, and the space between piston and cover is compressed gradually, high-pressure air is discharged through the body of rod of piston rod, fixed base place, and handle is when pressing down, make the high-pressure air between piston and base directly discharge, and air is entered in the urceolus via the one-way valve of cover from king-rod, fixed base place.

2, improved type pump according to claim 1 is characterized in that: be provided with a stuffing box gland between described cover and urceolus.

3, improved type pump according to claim 2 is characterized in that: described stuffing box gland is provided with several open-works corresponding with the cover one-way valve.