CN1924370A

CN1924370A - Pressure cylinder with location function

Info

Publication number: CN1924370A
Application number: CN 200510093852
Authority: CN
Inventors: 范斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-31
Filing date: 2005-08-31
Publication date: 2007-03-07
Anticipated expiration: 2025-08-31
Also published as: CN100467882C

Abstract

This invention relates to gas cylinder with position function, which comprises one cylinder and one bar inside, wherein, one end of bar is connected to one piston of cylinder; the bar other end stretches out of cylinder to be divided into first and second gas chambers changing as proportion; under piston moving, one gas valve of piston is opened for gas exchanging between two chambers for moving and sealing gas valve while stopping and at this time two chambers gas is in one balance status to be fixed in any position of cylinder.

Description

The pneumatic cylinder of tool locating function

Technical field

The present invention refers to be located at the interior piston of cylinder body of this pneumatic cylinder especially about pneumatic cylinder, can be fixed in the position in this cylinder body arbitrarily, so that a kind of pneumatic cylinder of locating function to be provided.

Background technique

Science and technology is in the world maked rapid progress at present, and people are more convenient in order to pursue, more high-quality and more comfortable life, thereby used a large amount of mechanical devices and electronic control in daily life and work, wherein a kind of " pneumatic cylinder " more widely used by people, and be seen everywhere, for example: the fastening device (as: toggle binding clasp (Toggle Clamp) or off normal binding clasp etc.) that utilizes pneumatic cylinder to manufacture, with the pneumatic cylinder shutter door, carry out the materials handling operation (as: with weight migration different heights by pneumatic cylinder, make article put upside down or with utilizations such as liquid quantitative bottlings) and use instrument (as: Bending machines or shaping worker mould etc.) that pneumatic cylinder manufactures etc.

Wherein, general tradition is used for the pneumatic cylinder structure of shutter door, see also shown in Figure 1, this pneumatic cylinder 10 has a cylinder body 11, these cylinder body 11 1 ends are one first to connect face 12, this cylinder body 11 end in addition is one second to connect face 13, be provided with a piston 14 in this cylinder body 11, this piston 14 is in the face of this second end that connects face 13, be provided with a body of rod 15, these body of rod 15 1 ends second connect face 13 and extend outside this cylinder body 11 via this, for the user of this pneumatic cylinder 10 pulling, and make this piston 14 to move in this cylinder body 11, this piston 14 and this first connects 12 formed air chambers 16 of face, and this piston 14 second connects 13 formed another air chambers 17 of face with this, then can be the equal proportion variation.

Again, see also shown in Figure 1 again, be provided with a spring 18 in this another air chamber 17, relative two ends of this spring 18 second connect face 13 and this piston 14 is connected with this respectively, this spring 18 uses the pitch broad, be the spring that launches shape, under the not operated state of this pneumatic cylinder 10, this spring 18 is limited to adjacent this first position that connects face 12 with this piston 14, be drawn out outside this cylinder body 11 and work as this body of rod 15, when this piston 14 moved towards this second direction that connects face 13, the gas in this another air chamber 17 was via at least one wind hole 1401 on this piston 14, and flow in this air chamber 16, and this spring 18 is compressed, and produces an elastic-restoring force, moves in the opposite direction in order to promote this piston 14.

According to above-mentioned, see also shown in Figure 1 again, end outside this body of rod 15 protrudes out this cylinder body 11, be fixed on the door leaf (not shown), and this cylinder body 11 is fixed under the state on the metope (not shown), when this door leaf is not opened, this piston 14 is positioned at adjacent this first position that connects face 12 of this cylinder body 11, and when this door leaf was opened, this body of rod 15 was drawn out outside this cylinder body 11, this piston 14 moves towards this second direction that connects face 13, this spring 18 is compressed, and produces an elastic-restoring force, when this door leaf no longer is unlocked, this spring 18 promptly promotes this piston 14 and moves towards this first direction that connects face 12, gas in this air chamber 16 flows in this another air chamber 17 via these wind holes 1401 again, makes this body of rod 15 progress in this cylinder body 11, thus, this door leaf can little by little be closed automatically.

Yet, in general traditional pneumatic cylinder design, when the user desires to be back to back, must hold the article of chair-like, retaining is before this door leaf, to fix this door leaf, make this door leaf can not close automatically, so design, seem and quite bother and inconvenience, in addition, in the time of in this pneumatic cylinder is set at general cupboard door, because the different article (as: pepper and salt etc.) that usually need to take continuously, but this above-mentioned pneumatic cylinder, but make the user whenever take article must open cupboard door one time, this measure, the also suitable trouble of Xianing, therefore, how to design a kind of pneumatic cylinder of tool locating function, this measure is very urgent at present and an important topic that need to be resolved hurrily in fact.

Because many shortcomings that aforementioned general traditional pneumatic cylinder is had when actual using, therefore, the inventor is a basis technical experience for many years, and the professional knowledge of being accumulated, at the problems referred to above, development and Design goes out the pneumatic cylinder of a kind of tool locating function of the present invention, and the phase is by innovative design of the present invention, make us when using pneumatic cylinder, can have more convenience and multifunctionality.

Summary of the invention

The object of the present invention is to provide a kind of pneumatic cylinder of tool locating function, it comprises a cylinder body and is located at the interior body of rod of this cylinder body, wherein the piston in this body of rod one end and this cylinder body is connected, this body of rod end in addition then protrudes out outside this cylinder body, spur for the user, and be separated into one first air chamber and one second air chamber by this piston in this cylinder body, gas in this first air chamber and this second air chamber, can change and be equal proportion, under the state that this piston moves with the displacement of this piston, one air valve of this piston is unlocked, gas between this two air chamber can exchange, and makes this piston be able to move smoothly, under the state that this piston stops to move, this air valve is closed, at this moment, the gas between this two air chamber is a state of equilibrium, makes this piston can be fixed on the interior arbitrary position of this cylinder body.

Another object of the present invention is to provide a kind of pneumatic cylinder of tool locating function, make this piston move once more, and stop under the state that the axle collar fastens mutually with one of this cylinder body, sliding sleeve on this piston can fasten this air valve, makes this air valve be the permanent state of opening, at this moment, be located at the Regulation spring in this first air chamber, can promote this piston towards anti-phase to moving, make this body of rod can enter in this cylinder body.

The object of the present invention is achieved like this, and a kind of pneumatic cylinder of tool locating function comprises:

One cylinder body, the one end is provided with a Boilor check valve seat, and other end is provided with one and stops the axle collar, and this stops the axle collar and is right against this Boilor check valve seat;

One body of rod, it is located in this cylinder body, and this body of rod one end is provided with a sleeve, and other end stops the axle collar via this and extends outside this cylinder body, is provided with a locking part;

One piston, it is located in this cylinder body and is connected with this sleeve, and the outer rim of this piston and the inner edge of this cylinder body are closely connected mutually, and it is one first air chamber that this piston and this stop between the axle collar, is one second air chamber between this piston and this Boilor check valve seat;

One air valve, it is located on this piston, and this piston stopped state that the axle collar moving towards this under, this air valve was promoted by the gas of this first air chamber, is the unlatching shape, makes the gas of this first air chamber be able to via this piston, and flows to this second air chamber;

One Regulation spring, it is located in this cylinder body, to should piston move, produce an elastic-restoring force, under the state that stops to move at this piston, this Regulation spring drives this piston and moves towards the direction of this Boilor check valve seat, this moment this second air chamber air pressure greater than this first air chamber, this air valve is closed shape, makes this piston be fixed in this cylinder body.

Move towards the direction that this stops the axle collar at this piston, and stop under the state that the axle collar fastens mutually with this, the air valve of this piston is permanent opening state, makes this Regulation spring be driven this piston and moves towards the direction of this Boilor check valve seat.

The outer rim of this piston is arranged with one first urgent ring, and it is made of the flexible material of tool, is positioned under the state of this cylinder body this first urgent ring of the outer rim of this piston and the common clamping of the inner edge of this cylinder body at this piston.

This Regulation spring is located in this first air chamber, and this Regulation spring uses the pitch broad, be the spring that launches shape, and relative two end of this Regulation spring stop the axle collar with this respectively and this piston is connected.

This piston still comprises:

One first air drain is located at the end of this piston area to this Boilor check valve seat;

One the 3rd air drain, it is located at the end in addition of this piston, and the internal diameter of the 3rd air drain is greater than the internal diameter of this first air drain;

One second air drain is located between this first air drain and the 3rd air drain, and the internal diameter of this second air drain is greater than the internal diameter of this first air drain, and less than the internal diameter of the 3rd air drain, this first and second and three air drain mutual conduction;

One sliding sleeve, it is located in the 3rd air drain, and between an end of adjacent this second air drain with the 3rd air drain, common ccontaining this sliding sleeve spring, and this sliding sleeve is provided with most second channels in the face of an end of this first air drain, and this sliding sleeve is held a sliding sleeve groove that is provided with these second channel mutual conduction in addition, in order to ccontaining this sleeve, make this sliding sleeve be restricted between this sliding sleeve spring and this sleeve, the inner edge of the outer rim of this sliding sleeve and the 3rd air drain is closely connected mutually;

This air valve, it is located in this first air drain, this air valve is back to an end of the 3rd air drain, protrude out outside this first air drain, and be provided with one first partition, the external diameter of this first partition is greater than the internal diameter of this first air drain, this air valve is held in addition via this second air drain, and protrude in the 3rd air drain, and being provided with one second partition, the external diameter of this second partition is less than the internal diameter of this second air drain, again greater than the internal diameter of this first air drain, under the state that this air valve moves towards the direction of the 3rd air drain, this first partition seals this first air drain, makes this first partition be closed shape, and under the state that this air valve moves towards other direction, this second partition and this second air drain fasten mutually, promote this first partition away from this first air drain, make this first partition be the unlatching shape.

The inner edge of the outer rim of this sleeve and this sliding sleeve groove is closely connected mutually, this sleeve is connected with this piston via this sliding sleeve, this sleeve is provided with most first passages, these first passages extend to from this sleeve one end and exceed this sliding sleeve position of end in addition, relative two ends of these first passages, lay respectively in this sliding sleeve groove and this sliding sleeve outside.

This first air drain is on an end face of the 3rd air drain, and the position in the face of this first partition is provided with one second urgent ring, seals under the state of this first air drain at this first partition, and this first partition and this second urgent ring closely fit together.

The external diameter of this sleeve is greater than the external diameter of this body of rod, the position that this sleeve is connected with this body of rod, be provided with and be skewed one and slip into portion, and this stops the one side of the axle collar in the face of this piston, be provided with a card drill drift, this card drill drift is provided with a card and moves back groove, and this card moves back groove and uses for this body of rod and move out this cylinder body and ccontaining this sleeve outward, and it is closely connected mutually that the outer rim of this sleeve and this card move back the inner edge of groove.

This card drill drift stops an end of the axle collar back to this, be provided with one first positioning part, in order to this sleeve of clamping, this piston along this cylinder body axially, move towards this direction that stops the axle collar, make this sleeve enter this card and move back under the state in the groove that portion can be slipped into along this body of rod and this in this first positioning part, and be connected together mutually with this sleeve, to limit the position of this sleeve.

This first positioning part is made of most first locating slots, these first locating slots are along the direction in the axle center of this card drill drift, be located in regular turn on the outer rim of this card drill drift, an end that moves back groove back to this card in these first locating slots is respectively equipped with a urgent reed, and move back between groove in these urgent reeds and this card, be respectively equipped with one first positioning element, respectively this urgent reed is promoted this corresponding first positioning element and protrudes out this card and move back in the groove.

Be right against the position of this sliding sleeve on this piston, be provided with one second positioning part, move in the direction of this sliding sleeve towards this first air drain, this sliding sleeve spring produces under the state of an elastic-restoring force, and this second positioning part can protrude in the 3rd air drain, is connected together mutually with one the 3rd positioning part of this sliding sleeve, in order to fix this sliding sleeve, this sliding sleeve then promotes this second partition in the face of an end of this first air drain, and the direction outside this piston moves, and makes this first partition be the unlatching shape.

This second positioning part comprises:

Space, most location, these spaces, location are located at respectively between the outer rim and the 3rd air drain of this piston;

Most retaining springs, these retaining springs are located at respectively respectively in this space, location;

Most second positioning element, these second positioning elements are located at this respectively respectively in this space, location, retaining spring that respectively should correspondence and space, location are in the face of between the end of the 3rd air drain, these second positioning elements can be made the part of these second positioning elements protrude out in the 3rd air drain by the direction pushing of the retaining spring of correspondence towards the 3rd air drain;

The 3rd positioning part is made of most that are provided with on this sliding sleeve outer rim corresponding respectively positioning holes of this second positioning element.

This Boilor check valve seat comprises:

One throttling groove, it is located at this Boilor check valve seat and stops an end of the axle collar back to this;

A groove, it is located at the end in addition of this Boilor check valve seat, this groove stops an end of the axle collar back to this, via a four-way and this throttling groove mutual conduction, the end in addition of this throttling groove is embedded with a stop collar, wherein this groove is equipped with a check spring and a safety check from inside to outside in regular turn, this safety check one end is provided with a sticking part, the outer rim of this sticking part inner edge proper and this groove is closely connected mutually, and this safety check is held the spacing hole via this stop collar in addition, and protrude out outside this Boilor check valve seat, and being provided with a block holding part, the external diameter of this block holding part is greater than the internal diameter of this spacing hole, again, relative two ends of this check spring are connected to an end of this throttling groove and this sticking part end back to this safety check with this groove face respectively, make this safety check be restricted in this groove.

This sticking part with the outer rim of this safety check connecting part, be provided with a shoulder, the external diameter of this shoulder is greater than the internal diameter of this spacing hole, this safety check stops state that the direction of the axle collar moves towards this under, the inner side surface that this stop collar is provided with an end of this spacing hole can fasten mutually with this shoulder, sealing most five-way roads of adjacent this spacing hole on this spacing hole and this stop collar, and this shoulder is provided with one the 3rd urgent ring in the face of the one side of this spacing hole.

Be equipped with the throttle valve that a bulb stopper and can be oppressed this bulb stopper in this throttling groove from inside to outside in regular turn, make this throttle valve to control the flow of this four-way by this bulb stopper of compressing.

Description of drawings

Fig. 1: be the structural representation of general conventional pneumatic cylinder;

Fig. 2: be the structural representation of the pneumatic cylinder of tool locating function of the present invention;

Fig. 3: be a structure of piston enlarged diagram of the present invention;

Fig. 4: move back a structural representation before the groove for a sleeve of the present invention enters a card;

Fig. 5: for this sleeve of the present invention enters a structural representation after this card moves back groove;

Fig. 6: be the structure enlarged diagram of a Boilor check valve seat of the present invention;

Fig. 7: for the direction of this piston of the present invention towards this Boilor check valve seat moves, and a structural representation that fastens mutually with a safety check of this Boilor check valve seat;

Fig. 8: be this piston of Fig. 2, the action schematic representation when this Boilor check valve seat direction of stopping the axle collar towards one of this cylinder body moves certainly;

Fig. 9: the structural representation that is closed shape for an air valve of this piston of the present invention.

Drawing reference numeral:

Pneumatic cylinder ... 20 cylinder bodies ... 21

First air chamber ... 22 second air chambers ... 23

Adjust spring ... 24 bodies of rod ... 30

Sleeve ... 31 slip into portion ... 3101

The connecting part ... 3102 first passages ... 3103

Openwork hole ... 3104 locking parts ... 32

Boilor check valve seat ... 40 throttling grooves ... 41

Bulb stopper ... 4101 throttle valve ... 4102

Pore ... 4103 four-ways ... 42

The seat groove ... 43 safety check ... 44

Block holding part ... 4401 sticking parts ... 4402

Third channel ... 4403 shoulders ... 4404

The 3rd urgent ring ... 4405 stop-return slots ... 4406

Check spring ... 45 stop collars ... 46

Spacing hole ... 4701 five-way roads ... 4702

Stop the axle collar ... 50 card drill drifts ... 51

Card moves back groove ... 52 first positioning parts ... 53

First locating slot ... 5301 urgent reeds ... 5302

First positioning element ... 5303 pistons ... 60

First air drain ... 61 second air drains ... 62

The 3rd air drain ... 63 air valves ... 64

First partition ... 6,401 second partitions ... 6402

Second positioning part ... space, 65 location ... 6501

Retaining spring ... 6,502 second positioning elements ... 6503

The first urgent ring ... 66 second urgent rings ... 67

Sliding sleeve ... 70 sliding sleeve springs ... 71

Second channel ... 72 sliding sleeve grooves ... 73

The 3rd positioning part ... 74 positioning holes ... 7401

Embodiment

The present invention is a kind of pneumatic cylinder of tool locating function, see also shown in Figure 2, this pneumatic cylinder 20 is made up of a cylinder body 21 and a body of rod 30, wherein these cylinder body 21 1 ends are provided with a Boilor check valve seat 40, other end is provided with one and stops the axle collar 50, this stops the axle collar 50 and is right against this Boilor check valve seat 40, and this body of rod 30 is accommodated in this cylinder body 21, these body of rod 30 1 ends are provided with a sleeve 31, in order to be connected with a piston 60 in this cylinder body 21, the inner edge of the outer rim of this piston 60 and this cylinder body 21 is closely connected mutually, make when this body of rod 30 drives these pistons 60 along the moving axially of this cylinder body 21, this piston 60 and this stop 50 formed one first air chambers 22 of the axle collar and this

piston

60 and 40 formed one second air chambers 23 of this Boilor check valve seat, along with the displacement of this piston 60, change and be equal proportion.

See also shown in Figure 2 again, these body of rod 30 other ends stop the axle collar 50 via this and extend outside this cylinder body 21, and be provided with a locking part 32, treat that this locking part 32 is fixed on the object (as: cabinet door plate or car boot cover etc.), and after this cylinder body 21 is fixed in another object (cabinet side plate or car trunk etc.) and goes up, if this two object mutually away from, make this body of rod 30 be pulled and stretch out this cylinder body 21 when outer, this piston 60 is also along with this body of rod 30, move towards this direction that stops the axle collar 50, make gas in this first air chamber 22, can be via an air valve 64 of this piston 60, and flow into this second air chamber 23.

A technical characteristics of the present invention is, when this two object stops away from a distance mutually, see also shown in Figure 2, the air pressure of this second air chamber 23 just can drive this air valve 64 and fit towards this piston 60, make this

first air chamber

22 and 23 of second air chambers form an airtight space respectively, make this piston 60 be still in state of equilibrium, make this piston 60 can be fixed on the arbitrary position in this cylinder body 21, with keeping a suitable spacing for a long time between this two object season.And another technical characteristics of the present invention is, when this two object mutually away from, when making this piston 60 and this stop the axle collar 50 to fasten mutually, 64 in the air valve of this piston 60 is the permanent state of opening, at this moment, this piston 60 can be along this cylinder body 21, and moves towards the direction of this Boilor check valve seat 40, makes this two object draw close mutually.

In one embodiment of the invention, see also Fig. 2 and shown in Figure 3, this piston 60 is faced the one side of this Boilor check valve seat 40 in addition between face of this piston 60, be provided with one first air drain 61, one second air drain 62 and one the 3rd air drain 63 in regular turn, the internal diameter of the 3rd air drain 63 is greater than the internal diameter of this second air drain 62, the internal diameter of this second air drain 62 is again greater than the internal diameter of this first air drain 61, this first and second and three air drains, 61,62,63 mutual conduction.

See also shown in Figure 3 again, the 3rd air drain 63 is faced an end of this first air drain 61 between the 3rd air drain 63 other ends, be equipped with a sliding sleeve spring 71 and a sliding sleeve 70 in regular turn, the inner edge of the outer rim of this sliding sleeve 70 and the 3rd air drain 63 is closely connected mutually, this sliding sleeve 70 is provided with most second channels 72 in the face of an end of this first air drain 61, this sliding sleeve 70 end in addition is provided with a sliding sleeve groove 73, this sliding sleeve groove 73 communicates with this second channel 72 respectively, this sliding sleeve groove 73 is in order to ccontaining this sleeve 31, the inner edge of the outer rim of this sleeve 31 and this sliding sleeve groove 73 is closely connected mutually, and this sleeve 31 can be after passing through this sliding sleeve 70, be connected together mutually with this piston 60, in addition, this sliding sleeve 70 is restricted to this sliding sleeve spring 71 and this sleeve 31 is faced between the end of this first air drain 61, but this sliding sleeve 70 is at 60 sliding spaces with relative displacement of this piston.

So, according to above-listed described, see also shown in Figure 3 again, when the direction of this sliding sleeve 70 towards this first air drain 61 moves, and when pushing this sliding sleeve spring 71, this sliding sleeve spring 71 produces an elastic-restoring force, and this elastic-restoring force can drive this sliding sleeve 70 and move in the opposite direction, fastens mutually up to an end and this sleeve 31 of this sliding sleeve groove 73 in the face of these second channels 72.

Again, this sleeve 31 is provided with most first passages 3103, the end that these first passages 3103 are faced this sliding sleeve 70 from this sleeve 31 extends to and exceeds this sliding sleeve 70 position of end in addition, under the state in this sleeve 31 is incorporated in this sliding sleeve 70, two ends of these first passages 3103, lay respectively at and reach outside this sliding sleeve 70 in this sliding sleeve groove 73, make gas in this first air chamber 22 and this second air chamber 23, can be along these first passages 3103, this sliding sleeve groove 73, these second channels 72, the 3rd air drain 63, this second air drain 62 and this first air drain 61, and circulation mutually.

See also shown in Figure 3, this first air drain 61 is in order to ccontaining this air valve 64, this air valve 64 is back to an end of the 3rd air drain 63, protrude out this first air drain 61 outside an end of the 3rd air drain 63, and be provided with one first partition 6401, this air valve 64 is held in addition via this second air drain 62, and protrude out in the 3rd air drain 63 of coming in and going out, and be provided with one second partition 6402, wherein the external diameter of this first partition 6401 is greater than the internal diameter of this first air drain 61, and the external diameter of this second partition 6402 is between between the internal diameter of this second air drain 62 and this first air drain 61.

According to above-listed described, see also shown in Figure 3, when the direction of this air valve 64 towards the 3rd air drain 63 moves, behind the position (as shown in Figure 9) of these first partition, 6401 these first air drains 61 of sealing, this first air chamber 22 and this second air chamber 23 become independent separately sealing, not connected space, make the gas of this second air chamber 23 can't flow to this first air chamber 22, this body of rod 30 promptly continues can't displacement; Otherwise, when this air valve 64 moves towards the direction back to the 3rd air drain 63, this second partition 6402 fastens mutually with the end of this second air drain 62 back to this first air drain 61, to remove the closed state of this first partition 6401 and this first air drain 61, and open this first partition 6401, make the gas of this first air chamber 22, can be via the 3rd air drain 63, second air drain 62 and this first air drain 61, and flow in this second air chamber 23.

Thus, see also shown in Figure 3, when this piston 60 when this direction that stops the axle collar 50 (as shown in Figure 2) moves, gas in this first air chamber 22 is compressed, make the air pressure of this first air chamber 22 greater than the air pressure of this second air chamber 23, at this moment, the gas of this first air chamber 22 will promote this second partition 6402, and open this first partition 6401, the gas of this first air chamber 22 can be via this first passage 3103, this first air drain 61, this second air drain 62, the 3rd air drain 63, and freely flow to this second air chamber 23, so, this piston 60 is moving axially along this cylinder body 21 swimmingly; Otherwise, and when the air pressure of this second air chamber 23 during greater than the air pressure of this first air chamber 22, the gas of this second air chamber 23 will promote this first partition 6401, make this first partition, 6401 these first air drains 61 of sealing, be closed state, at this moment, the gas that this first air chamber 22 and second air chamber are 23 can't free-flow, can make this piston 60 be fixed on the position in this cylinder body 21.

In present embodiment, see also Fig. 2 and shown in Figure 3 again, be provided with a Regulation spring 24 in this cylinder body 21, its optimum position is to be located in this first air chamber 22, when this Regulation spring 24 was located in this first air chamber 22, this Regulation spring 24 was to use the pitch broad, is the spring that launches shape, and relative two ends of this Regulation spring 24 stop the axle collar 50 with this respectively and this piston 60 joins, and this Regulation spring 24 has in present embodiment as following described two kinds of states:

One, when this piston 60 was positioned at the position of adjacent this Boilor check valve seat 40, this Regulation spring 24 was the expansion shape, so that this piston 60 is limited on this position;

They are two years old, when this piston 60 moves towards the direction that this stops the axle collar 50, and push this Regulation spring 24, when making this Regulation spring 24 be the compression shape, this Regulation spring 24 promptly produces an elastic-restoring force, treat that this elastic-restoring force drives this piston 60 when mobile in the opposite direction, the gas of this second air chamber 23 also is compressed, make the air pressure of this second air chamber 23 just greater than the air pressure of this first air chamber 22, so, the gas of this second air chamber 23 can promote this first partition 6401, make this first partition, 6401 these first air drains 61 of sealing, so, this first air chamber 22 and second air chamber 23 form an airtight space respectively, and this two

air chamber

22 and 23 pressure that bears respectively just correspond to the elastic-restoring force of this adjustment spring 24, this

second air chamber

23 and 22 of first air chambers are reached state of equilibrium, and this piston 60 also is still in state of equilibrium, and so, this piston 60 can be fixed on the arbitrary position in this cylinder body 21.

At this palpus special declaration; this second air chamber 23 also can be provided with a Regulation spring at the same time or separately with this first air chamber 22; Regulation spring in this second air chamber 23 is to use pitch narrower; be the spring that compresses shape; but,, compressible or spur Regulation spring as long as this body of rod 30 is this cylinder body 21 in when mobile; to produce elastic-restoring force, be the scope of institute of the present invention desire protection.

See also shown in Figure 3 again, the outer rim of this piston 60 is arranged with one first urgent ring 66, this first urgent ring 66 is made of the flexible material of tool, when this piston 60 is positioned at this cylinder body 21, the outer rim of this piston 60 can with this first urgent ring 66 of the common clamping of the inner edge of this cylinder body 21, when making this piston 60 move (or static) in this cylinder body 21, the gas of this first air chamber 22 and second air chamber 23 can not leak via the space of 21 of this piston 60 and this cylinder bodies yet.Again, this first air drain 61 is on the one side of the 3rd air drain 63, in position in the face of this first partition 6401, be provided with one second urgent ring 67, when these first partition, 6401 these first air drains 61 of sealing, this first partition 6401 just can closely fit together with this second urgent ring 67, makes the gas of this second air chamber 23 to flow in this first air chamber 22 fully.

See also Fig. 2 and shown in Figure 4, the external diameter of this sleeve 31 is greater than the external diameter of this body of rod 30, the position that this sleeve 31 is connected with this body of rod 30, be provided with and be skewed one and slip into portion 3101, and this stops the axle collar 50 in the face of on the one side of this piston 60, be provided with a card drill drift 51, this card drill drift 51 is provided with a card and moves back groove 52, it is in order to ccontaining this sleeve 31, it is closely connected mutually that the outer rim of this sleeve 31 and this card move back the inner edge of groove 52, and this card drill drift 51 stops an end of the axle collar 50 back to this, be provided with one first positioning part 53, this first positioning part 53 can be in order to this sleeve 31 of clamping, this piston 60 along this cylinder body 21 axially, move towards this direction that stops the axle collar 50, making this sleeve 31 enter this card moves back under the state in the groove 52, portion 3101 can be slipped into along this body of rod 30 and this in this first positioning part 53, and is connected together mutually with this sleeve 31, to limit the position of this sleeve 31.

Again, see also shown in Figure 4 again, on this piston 60 over against the position of this sliding sleeve 70, be provided with one second positioning part 65, move in the direction of this sliding sleeve 70 towards this first air drain 61, make this sliding sleeve spring 71 produce under the state of an elastic-restoring force, this second positioning part 65 can protrude in the 3rd air drain 63, be connected together mutually with one the 3rd positioning part 74 of this sliding sleeve 70, to fix this sliding sleeve 70, so, this air valve 64 is promptly withstood by this sliding sleeve 70, and be permanent opening state, at this moment, because this sliding sleeve 70 is fixed on this air valve 64 gas in this second air chamber 23, can be via this first air drain 61, this second air drain 62, the 3rd air drain 63, this second channel 72, this sliding sleeve groove 73 and this first passage 3103, and flow in this first air chamber 22.

See also Fig. 2 again, Fig. 4 and shown in Figure 5, the structural design of above-mentioned each member, when this sleeve 31 moves towards the direction that this stops the axle collar 50, and when entering in this card drill drift 51, portion 3101 is also slipped into via this body of rod 30 and this in this first positioning part 53, and be connected together mutually with this sleeve 31, to fix this body of rod 30, see also shown in Figure 5, treat that this sliding sleeve 70 and this card drill drift 51 are when this end that stops the axle collar 50 fastens mutually, this card drill drift 51 promptly promotes this sliding sleeve 70, make this sliding sleeve 70 in the 3rd air drain 63, direction towards this first air drain 61 moves, and makes this second positioning part 65 and the 74 mutual clampings of the 3rd positioning part, simultaneously, this sliding sleeve spring 71 produces an elastic-restoring force, and this sliding sleeve 70 promotes this air valve 64 and protrudes out outside this piston 60, makes that the gas of this second air chamber 23 can be along this first air drain 61, the 3rd air drain 63, this second channel 72, this sliding sleeve groove 73 and this first passage 3103, and flow in this first air chamber 22.

In above-mentioned, this first positioning part 53 comprises most first locating slots 5301, see also shown in Figure 4, these first locating slots 5301 are along the direction in these card drill drift 51 axle center, and be located in regular turn on the outer rim of this card drill drift 51, respectively an end that moves back groove 52 back to this card in this first locating slot 5301 is respectively equipped with a urgent reed 5302, and move back 52 of grooves in these urgent reeds 5302 and this card, be respectively equipped with one first positioning element 5303 (as: steel ball), respectively this urgent reed 5302 is promoted the first corresponding positioning element 5303 and protrudes out this card and move back in the groove 52, thus, when this sleeve 31 progresses into this card and moves back in the groove 52, these first positioning elements 5303 can be along this body of rod 30, slip into portion 3101 and sleeve 31, entered in first locating slot 5301 and fasten gradually, and push the urgent reed 5302 of each correspondence, make these urgent reeds 5302 produce an elastic-restoring force respectively, move in the opposite direction to promote these first positioning elements 5303, be right against at respectively this first passage 3103 on this sleeve 31 under the state of the first corresponding locating slot 5301, these urgent reeds 5302 can promote the first corresponding positioning element 5303 once more and protrude out this card and move back in the groove 52, and with corresponding first passage 3103 mutual clampings, in this card drill drift 51, to fix this sleeve 31, at this moment, the gas of this second air chamber 23 can be along this first air drain 61, this second air drain 62, the 3rd air drain 63, these second channels 72, this sliding sleeve groove 73, these first passages 3103 and these first locating slots 5301, and flow in this first air chamber 22.

In addition, in above-mentioned, this second positioning part 65 is the spaces 6501, most location by 63 of the outer rim of being located at this piston 60 and the 3rd air drains, distinguish a ccontaining location spring 6502 in these spaces, location 6501, and in these spaces 6501, location, each corresponding retaining spring 6502 and space 6501, location in the face of between the end of the 3rd air drain 63 one second ccontaining positioning element 6503 constitute, these second positioning elements 6503 can be by the direction pushing of this retaining spring 6502 towards the 3rd air drain 63, make the part of these second positioning elements 6503 protrude out in the 3rd air drain 63, the 3rd positioning part 74 is made of most that are provided with on these sliding sleeve 70 outer rims corresponding respectively positioning holes 7401 of this second positioning element 6503, pushed by this sliding sleeve spring 71 at this sliding sleeve 70, and under the state that moves away from the direction of this first air drain 61, in the sliding sleeve groove 73 of this sliding sleeve 70 in the face of an end of this second channel 72 can with these sleeve 31 mutual clampings, make this sliding sleeve 70 by this sliding sleeve spring 71 and this sleeve 31, and be limited to a position in the 3rd air drain 63, at this moment, these positioning holes 7401 are positioned at the position of adjacent this second positioning element 6503, and these second positioning elements 6503 are fastened by the outer rim of this sliding sleeve 70, and move towards the direction of these piston 60 outer rims, make these second positioning elements 6503 be arranged in this space, location 6501, and retaining spring 6502 that respectively should correspondence produces an elastic-restoring force, otherwise, being pushed to this first air drain 61 when this sliding sleeve 70 by this card drill drift 51 makes, respectively this positioning hole 7401 just be right against respectively should correspondence second positioning element 6503 time, these second positioning elements 6503 can be promoted by the direction of this elastic-restoring force towards the 3rd air drain 63, make these second positioning elements 6503 protrude into respectively respectively should the positioning hole 7401 of correspondence in, to fix the position of this sliding sleeve 70 in the 3rd air drain 63.

See also the structural representation of this Boilor check valve seat 40 shown in Figure 6, these Boilor check valve seat 40 1 ends are provided with a throttling groove 41, end is provided with a groove 43 in addition, this throttling groove 41 is right against this groove 43, in this groove 43, be equipped with a check spring 45 and a safety check 44 from inside to outside in regular turn, wherein these safety check 44 1 ends are provided with a sticking part 4402, the outer rim of this sticking part 4402 inner edge proper and this groove 43 is closely connected mutually, again, one end of this groove is via a four-way 42 and these throttling groove 41 mutual conduction, this groove 43 is back to the end in addition of this throttling groove 41, then be embedded with a stop collar 46, this safety check 44 end in addition then protrudes out outside this Boilor check valve seat 40 via a spacing hole 4701 of this stop collar 46, and be provided with a block holding part 4401, the external diameter of this block holding part 4401 is greater than the internal diameter of this spacing hole 4701, in addition, relative two ends of this check spring 45, be connected in the face of an end of this throttling groove 41 and this sticking part 4402 a end with this groove 43 respectively back to this safety check 44, make that this safety check 44 can be by this check spring 45 and this stop collar 46, and be limited in this groove 43.Again, this check spring 45 uses pitch broads, is the spring that launches shape, so under the state that this safety check 44 moves towards the direction of this throttling groove 41, this check spring 45 promptly is compressed, and produces an elastic-restoring force, and is mobile in the opposite direction to promote this safety check 44.

Moreover, see also shown in Figure 6 again, this sticking part 4402 is in the face of an end face of this block holding part 4401, outer rim along this safety check 44, be provided with a shoulder 4404, the external diameter of this shoulder 4404 is greater than the internal diameter of this spacing hole 4701, in addition, on one end of this stop collar 46, position at adjacent this spacing hole 4701, outer rim along this spacing hole 4701 is provided with most five-way roads 4702, thus, and when this safety check 44 moves towards the direction away from this throttling groove 41, the inner side surface that this stop collar 46 is provided with an end of this spacing hole 4701 just fastens (an enforcement aspect figure of this Boilor check valve seat 40 as shown in Figure 7) mutually with this safety check 44, at this moment, this shoulder 4404 can seal this spacing hole 4701 and this grade in an imperial examination five-way road 4702, makes the gas of this second air chamber 23 can't flow in this groove 43.

Again, see also shown in Figure 6 again, this shoulder 4404 is in the face of the one side of this spacing hole 4701 with this grade in an imperial examination five-way road 4702, be provided with one the 3rd urgent ring 4405, when this spacing hole 4701 of this shoulder 4404 sealings during with this grade in an imperial examination five-way road 4702, see also shown in Figure 7ly, the 3rd urgent ring 4405 just can closely fit together mutually with the inner side surface of an end of this stop collar 46, make the gas of this second air chamber 23, can't flow to fully in this throttling groove 41.

See also shown in Figure 6 again, one end of this sticking part 4402 is between other end, be provided with most third channels 4403 (as: 4), under the situation that this safety check 44 moves towards the direction of this throttle valve 4102, the gas of this second air chamber 23 can be via this grade in an imperial examination five-way road 4702, these third channels 4403, this groove 43 and this four-way 42, and flow in this throttling groove 41, otherwise, see also shown in Figure 7, under the situation that this safety check 44 moves towards the direction away from this throttle valve 4102, this shoulder 4404 and the 3rd urgent ring 4405 thereof can seal this spacing hole 4701 simultaneously, respectively this five-way road 4702 and respectively this third channel 4403 in the face of an end of this first air chamber 22.

In addition, see also Fig. 2 again, Fig. 3, Figure 6 and Figure 7, under the state outside this safety check 44 protrudes out this stop collar 46, gas in this first air chamber 22 and this second air chamber 23, being equal proportion changes, be connected together mutually with this second positioning part 65 and work as this sliding sleeve 70, making this Regulation spring 24 be promoted this piston 60 moves towards the direction of this Boilor check valve seat 40, when making the block holding part 4401 of first partition 6401 and this safety check 44 of this piston 60 fasten together mutually, this first partition 6401 is promoted by this safety check 44, sealed this first air drain 61, drive this second partition 6402 and promote this sliding sleeve 70, remove the clamping state of 65 of this sliding sleeve 70 and this second positioning parts, move towards the direction of this sleeve 31 to drive this sliding sleeve 70, simultaneously, this piston 60 is promoted by this Regulation spring 24, move towards the direction of this throttling groove 41 and little by little promote this safety check 44, remove the closed state of 46 of this sticking part 4402 and this stop collars, at this moment, the gas of this second air chamber 23 can't flow to this first air chamber 22, but via this grade in an imperial examination five-way road 4702, this groove 43 and this grade in an imperial examination four-way 42, and flow in this throttling groove 41, finally, this piston 60 is got rid of the gas of this second air chamber 23 gradually, and fasten together the reset condition before making this pneumatic cylinder 20 be returned to not to be operated mutually with this Boilor check valve seat 40.

In addition, see also shown in Figure 6 again, be equipped with a bulb stopper 4101 and a throttle valve 4102 in this throttling groove 41 in regular turn, this throttle valve 4102 (Throttling Valve, as: the pin type, sliding-type and rotary-type etc.) be in order to adjust the position of this bulb stopper 4101 in this throttling groove 41, make this bulb stopper 4101 be controlled the flow of gas of a four-way 42 of 43 of this throttling groove 41 and this grooves, when this throttle valve 4102 away from this bulb stopper 4101, this bulb stopper 4101 makes when can move freely in this throttling groove 41, gas in this second air chamber 23 can be freely via this groove 43 and this four-way 42, and flow in this throttling groove 41, and can be again via a pore 4103 of this throttling groove 41, flow out this Boilor check valve seat 40 outer (it is outer promptly to discharge this pneumatic cylinder 20 (as shown in Figure 2)), and when these throttle valve 4102 these bulb stoppers 4101 of compressing, make when this bulb stopper 4101 is sealed this four-way 42, the gas of this second air chamber 23 promptly can't flow in this throttling groove 41, so, gas in this first air chamber 22 (as shown in Figure 2) and this second air chamber 23 promptly just can maintain a fixed proportion.

In the present invention, see also shown in Figure 2, this pneumatic cylinder 20 is under the state of not effect, this air valve 64 is arranged in this cylinder body 21 and stops an end of the axle collar 50 away from this, make this first partition 6401 and the block holding part 4401 of this safety check 44 fasten mutually together, to limit the position of this safety check 44 in this groove 43;

See also shown in Figure 8, when this body of rod 30 is pulled, make this piston 60 gradually when this direction that stops the axle collar 50 moves, this safety check 44 is also little by little by the elastic-restoring force of this check spring 45, push in this cylinder body 21, make this shoulder 4404 be sealed this spacing hole 4701 and this five-way road 4702 (as shown in Figure 7) respectively, the gas that makes this second air chamber 23 is along with this piston 60 moves, and increases gradually;

Simultaneously, because the gas of this first air chamber 22 is compressed, make the air pressure of this first air chamber 22 greater than the air pressure of this second air chamber 23, the gas of this first air chamber 22 can promote this first partition 6401, make this first partition 6401 be unlocked, this second air chamber 23 of the gas flow of this first air chamber 22;

At this moment, if this body of rod 30 stops to move, see also shown in Figure 9, because the elastic-restoring force that this Regulation spring 24 is produced, move promoting the direction of this piston 60 towards this Boilor check valve seat 40, make the gas of this second air chamber 23 be compressed, the air pressure of this second air chamber 23 is greater than the air pressure of this first air chamber 22 (as shown in Figure 2), the gas of this second air chamber 23 promotes this first partition 6401, to seal this first air drain 61 (as shown in Figure 3), make the gas of 23 of this first air chamber 22 and second air chambers, no longer mobile, so, this piston 60 can be fixed on the arbitrary position in this cylinder body 21.

See also shown in Figure 2 again, when this piston 60 again when this direction that stops the axle collar 50 moves, because the gas of this first air chamber 22 is compressed once more, make the air pressure of this first air chamber 22 greater than the air pressure of this second air chamber 23, the gas of this first air chamber 22 can promote this first partition 6401, make this first partition 6401 be unlocked, this second air chamber 23 of the gas flow of this first air chamber 22;

See also shown in Figure 3 again, treat that this sleeve 31 enters this card and moves back groove 52 (as shown in Figure 4), and this sliding sleeve 70 fastens mutually with this card drill drift 51, make this second positioning part 65 be connected together mutually with the 3rd positioning part 74, this sliding sleeve 70 fastens this second partition 6402, to open this first partition 6401, make 64 in this air valve be the permanent state of opening.

See also shown in Figure 5,64 in above-mentioned this air valve be permanent open state in, the gas that this first air chamber 22 and second air chamber are 23 can move freely, at this moment, this pneumatic cylinder 20 can have implementation step as described below:

One, see also Fig. 2, Fig. 3 and shown in Figure 5, combination force when this first positioning part 53 is connected together mutually with these first passages 3103, during greater than the elastic-restoring force of this Regulation spring 24, this sleeve 31 still can block drill drift 51 with this and be connected together mutually, and this piston 60 also is fixed in, and adjacent this stops on the position of the axle collar 50 in this cylinder body 21, treat that this body of rod 30 is pushed, with after driving this sleeve 31 and being separated with this card drill drift 51, at this moment, this Regulation spring 24 can promote this piston 60 and move towards the direction of this Boilor check valve seat 40, makes this body of rod 30 progress in this cylinder body 21;

They are two years old, see also Fig. 2, Fig. 3 and shown in Figure 5, combination force when this first positioning part 53 is connected together mutually with these first passages 3103, during less than the elastic-restoring force of this Regulation spring 24, this Regulation spring 24 can promote this piston 60 and move towards the direction of this Boilor check valve seat 40, makes this body of rod 30 progress in this cylinder body 21.

Moreover, see also shown in Figure 3 again, this sleeve 31 is by the connecting part 3102 (as: locating stud or screw) on it, is connected together mutually with this piston 60 via an openwork hole 3104 (as shown in Figure 2) of this sliding sleeve 70, makes this sleeve 31 to be connected with this piston 60.In addition, see also shown in Figure 6ly, this safety check 44 is provided with a stop-return slot 4406 back to the in addition end of this block holding part 4401, and this stop-return slot 4406 is used for ccontaining this check spring 45, makes this check spring 45 be restricted to the position in this stop-return slot 4406.

Though the present invention discloses with specific embodiment; but it is not in order to limit the present invention; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present invention and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that scope of patent protection of the present invention is done.

Claims

1, a kind of pneumatic cylinder of tool locating function is characterized in that comprising:

2, the pneumatic cylinder of tool locating function as claimed in claim 1, it is characterized in that: move towards the direction that this stops the axle collar at this piston, and stop under the state that the axle collar fastens mutually with this, the air valve of this piston is permanent opening state, makes this Regulation spring be driven this piston and moves towards the direction of this Boilor check valve seat.

3, the pneumatic cylinder of tool locating function as claimed in claim 1, it is characterized in that: the outer rim of this piston is arranged with one first urgent ring, it is made of the flexible material of tool, be positioned under the state of this cylinder body this first urgent ring of the outer rim of this piston and the common clamping of the inner edge of this cylinder body at this piston.

4, the pneumatic cylinder of tool locating function as claimed in claim 1, it is characterized in that: this Regulation spring is located in this first air chamber, this Regulation spring uses the pitch broad, be the spring that launches shape, and relative two end of this Regulation spring stop the axle collar with this respectively and this piston is connected.

5, the pneumatic cylinder of tool locating function as claimed in claim 1 is characterized in that: this piston still comprises:

6, the pneumatic cylinder of tool locating function as claimed in claim 5, it is characterized in that: the inner edge of the outer rim of this sleeve and this sliding sleeve groove is closely connected mutually, this sleeve is connected with this piston via this sliding sleeve, this sleeve is provided with most first passages, these first passages extend to from this sleeve one end and exceed this sliding sleeve position of end in addition, relative two ends of these first passages, lay respectively in this sliding sleeve groove and this sliding sleeve outside.

7, the pneumatic cylinder of tool locating function as claimed in claim 5, it is characterized in that: this first air drain is on an end face of the 3rd air drain, in position in the face of this first partition, be provided with one second urgent ring, seal under the state of this first air drain at this first partition, this first partition and this second urgent ring closely fit together.

8, the pneumatic cylinder of tool locating function as claimed in claim 5, it is characterized in that: the external diameter of this sleeve is greater than the external diameter of this body of rod, the position that this sleeve is connected with this body of rod, be provided with and be skewed one and slip into portion, and this stops the one side of the axle collar in the face of this piston, is provided with a card drill drift, and this card drill drift is provided with a card and moves back groove, this card moves back groove and uses for this body of rod and move out this cylinder body outward and ccontaining this sleeve, and it is closely connected mutually that the outer rim of this sleeve and this card move back the inner edge of groove.

9, the pneumatic cylinder of tool locating function as claimed in claim 8, it is characterized in that: this card drill drift stops an end of the axle collar back to this, be provided with one first positioning part, in order to this sleeve of clamping, this piston along this cylinder body axially, move towards this direction that stops the axle collar, making this sleeve enter this card moves back under the state in the groove, portion can be slipped into along this body of rod and this in this first positioning part, and is connected together mutually with this sleeve, to limit the position of this sleeve.

10, the pneumatic cylinder of tool locating function as claimed in claim 9, it is characterized in that: this first positioning part is made of most first locating slots, these first locating slots are along the direction in the axle center of this card drill drift, be located in regular turn on the outer rim of this card drill drift, an end that moves back groove back to this card in these first locating slots is respectively equipped with a urgent reed, and move back between groove in these urgent reeds and this card, be respectively equipped with one first positioning element, respectively this urgent reed is promoted this corresponding first positioning element and protrudes out this card and move back in the groove.

11, the pneumatic cylinder of tool locating function as claimed in claim 5, it is characterized in that: the position that is right against this sliding sleeve on this piston, be provided with one second positioning part, move in the direction of this sliding sleeve towards this first air drain, this sliding sleeve spring produces under the state of an elastic-restoring force, this second positioning part can protrude in the 3rd air drain, be connected together mutually with one the 3rd positioning part of this sliding sleeve, in order to fix this sliding sleeve, this sliding sleeve then promotes this second partition in the face of an end of this first air drain, direction outside this piston moves, and makes this first partition be the unlatching shape.

12, the pneumatic cylinder of tool locating function as claimed in claim 11 is characterized in that: this second positioning part comprises:

13, the pneumatic cylinder of tool locating function as claimed in claim 1 is characterized in that: this Boilor check valve seat comprises:

14, the pneumatic cylinder of tool locating function as claimed in claim 13, it is characterized in that: this sticking part with the outer rim of this safety check connecting part, be provided with a shoulder, the external diameter of this shoulder is greater than the internal diameter of this spacing hole, this safety check stops state that the direction of the axle collar moves towards this under, the inner side surface that this stop collar is provided with an end of this spacing hole can fasten mutually with this shoulder, to seal most five-way roads of adjacent this spacing hole on this spacing hole and this stop collar, and this shoulder is provided with one the 3rd urgent ring in the face of the one side of this spacing hole.

15, the pneumatic cylinder of tool locating function as claimed in claim 14, it is characterized in that: be equipped with the throttle valve that a bulb stopper and can be oppressed this bulb stopper in this throttling groove from inside to outside in regular turn, make this throttle valve to control the flow of this four-way by this bulb stopper of compressing.