CN201013415Y - Positive-contrary air duct knob arrangement - Google Patents

Abstract

A positive upwind path button comprises a body, at least one operation part, two air inlet passages and an air outlet passage. The body passes through and is limited in a positioning hole of a pneumatic tool base, the operation part is fixed on an axial side of the body, each air inlet passage is formed into a predetermined groove and is concaved among ring walls of the body, the operation part is pulled to rotate the body with a predetermined angle, the air inlet passages can respectively correspond to an air inlet pass and two air leading passes on the base, which is communicated with the positioning hole, the air enters into the base through the positive upwind path button to implement positive and negative rotation of the pneumatic tool and control air wind amount. The positive upwind path button is provided with the efficacies of an easy mounting and a convenient operation.

Description

Wind dead ahead path knob structure

Technical field

The utility model is relevant with a kind of pneumatic tool, in detail, be meant especially a kind ofly on wind dead ahead path knob, directly to be arranged with the air inlet channel that forms reservation shape, and then simplified structure, reach easy-to-operat and control gaseous and enter direction and air quantity in the pneumatic tool pedestal via wind dead ahead path knob.

Background technique

Press, see also Figure 1 and Figure 2, be equipped with a positioning hole 11 on the general air tool pedestal 10, an intake duct 12 that is provided with in this positioning hole 11 and the pedestal 10, one just, contrary air outlet flue 13,14 and one just, against leading the way 15,16 conductings, in addition, known wind dead ahead path knob 20 comprises a sleeve pipe 21 that is embedded in the positioning hole 11, one can axial displacement in sleeve pipe sleeve pipe 21 speed control rod 22 and two knobs 23, wherein, this sleeve pipe 21 offers an inlet hole 211 that is communicated with intake duct 12 on tube wall, the one contrary exhaust port 212 corresponding with contrary air outlet flue 14, the one positive exhaust port 213 corresponding with positive air outlet flue 13, one with just lead the way 15 corresponding positive through holes 214 and one with the contrary 16 corresponding contrary through holes 215 of leading the way, and this speed control rod 22 is provided with two circular grooves 221 in the front side, and in the body of rod by the outstanding blocking section 222 of central position, these blocking section 222 both sides form a contrary guide channel 223 and a positive guide channel 224 of indent respectively, and the control gas face 225 of on positive guide channel 224, cutting sth. askew, make the contrary guide channel 223 on this speed control rod 22 seasonable with inlet hole 211 and 215 pairs of contrary through holes, can be by the gas that intake duct 12 enters along inlet hole 211, contrary guide channel 223, contrary through hole 215, contrary leading the way 16 enters in the pneumatic tool, reverse to drive rotor, the gas that produces back pressure afterwards is then along just leading the way 15, positive through hole 214, positive guide channel 224, contrary exhaust port 212, contrary air outlet flue 14 is discharged, otherwise, when if desire changes air tool sense of rotation, then push speed control rod 22 to the right, make the blocking section 222 of this speed control rod 22 move to inlet hole 211 right sides, so gas can 15 be advanced toward just leading the way through positive through hole 214 via the guiding of positive guide channel 224, when just changeing because positive guide channel 224 is provided with control gas face 225, cover under the different situation of positive through hole 214 areas at control gas face 225, make this pneumatic tool produce the different fast persons that just walks around; In addition, these sleeve pipe 22 both sides inner edges respectively are arranged with the ring 216 that O type ring is constituted, circular groove 221 cards when these speed control rod 22 displacements are provided on it are set position and leak-stopping actor, only, known wind dead ahead path knob 20 needs multiple component compositions such as sleeve pipe 21 and speed governing button 22, just can reach the purpose that pneumatic tool switches sense of rotation and adjusts rotating speed, generally speaking compostle member is various, not only making processing cost improves, also very numerous and diverse property during assembling, simultaneously, it is just, during the switching that reverses is to utilize speed governing button 22 with respect to sleeve pipe 21 axial direction displacements, it is higher that it switches complexity, the user needs with two handlings very inconvenient in the operation, simultaneously, these rings are established in the sleeve pipe 21 for 216 groups, and easily be acted upon by temperature changes for the rubber material, and the situation of expanding with heat and contract with cold, when this speed governing button 22 with respect to sleeve pipe 21 antero posterior axis to start, and during these ring 216 expanded by heating, it is with respect to 22 more urgent states of formation of speed governing button, start can't be smooth and easy when causing this speed governing button 22 to do just contrary the switching, the corresponding position relation that also may cause switching can't precisely be controlled, and because of it is in urgent state, this ring 216 radially also is subjected to the axial displacement rubbing action of speed governing button 22 easily and damages, otherwise, when temperature was low, when the shrinkage situation took place ring 216,21 of this speed governing button 22 and sleeve pipes then formed more loose state, when pneumatic tool work forms vibration, very easily make this speed governing button 22 produce displacement, cause each hole site to change, the operation that influence is actual.

The model utility content

The purpose of this utility model is to provide a kind of wind dead ahead path knob structure, to overcome the defective that exists in the known technology.

For achieving the above object, the wind dead ahead path knob structure that the utility model provides, this wind dead ahead path knob is hubbed in the positioning hole of pneumatic tool pedestal, this positioning hole both sides tool opening, and be relatively set with an intake duct, two air outlet flues and the two mutual conduction person that leads the way in it; Wherein:

This wind dead ahead path knob is provided with a columniform body, this body is worn in the positioning hole that pivot is limited in this pedestal relatively, and can be with respect to this positioning hole rotation predetermined angle, simultaneously, this body shaft is provided with an operation unit to being less than a side on both end sides, this operation unit convexedly stretches in outside the positioning hole, to drive this body rotation; In addition, at least spaced two air inlet channels of moulding and exhaust channel between the ring wall of this body, wherein, this two gas-entered passageway is arranged with oppositely corresponding each other groove along its ring wall, and an end of this two gas-entered passageway respectively is provided with an air inlet portion that can be docked and connected with intake duct, the other end then be provided with can with two portions of giving vent to anger that lead the way and be docked and connected respectively, simultaneously, the air inlet portion of each gas-entered passageway is given vent to anger with it, and each links to each other with an interconnecting part between portion; Then arrange in pairs or groups and be located at the both sides of two gas-entered passageways respectively in this two exhaust passage, and it is arranged with oppositely corresponding each other groove along the body ring wall, simultaneously, one end of this two exhaust passage respectively be provided with can with two air inlet portions of leading the way and being docked and connected, in addition end then is provided with the portion of giving vent to anger that can be docked and connected respectively with two air outlet flues, and the air inlet portion of each exhaust passage is given vent to anger with it, and each links to each other with an interconnecting part between portion;

By this two gas-entered passageway of above-mentioned structure may command with to contact position relative between intake duct, intake duct is communicated with a gas-entered passageway wherein, with reach provide pneumatic tool just, the purpose that reverses, utilize the area of relative contact position between this gas-entered passageway adjustment and suction port simultaneously, it enters gas flow between gas-entered passageway, the rotating speed adjustment when this pneumatic tool start is provided to adjust control.

Described wind dead ahead path knob structure, wherein this wind dead ahead path knob is provided with two circular grooves, and these circular grooves are located on this body shaft to two sides, are mounted on it for two rings.

Described wind dead ahead path knob structure, wherein this ring is an O type ring.

Described wind dead ahead path knob structure, wherein this pedestal positioning hole is provided with a limiting tooth portion in the trip ring of relative operation unit one side, and this body also relative limit tooth portion is equipped with a spacing hole, is mounted on wherein for a spring and steel ball, makes this steel ball be subjected to spring to shore and limit and be fixed in the limiting tooth portion.

Described wind dead ahead path knob structure, wherein this positioning hole is equipped with a sign mark in the open outer side of relative operation unit side.

Described wind dead ahead path knob structure, wherein this operation unit is provided with a throw rod, and this throw rod is strip, and it is provided with one in relative sign mark side and is the pointed instruction unit of circular cone.

Described wind dead ahead path knob structure, wherein the opposite side of the relative operation unit of this body also is provided with an operation unit, can be fixedly arranged on the operation unit for an operating knob, makes this operating knob drive the body rotation.

Described wind dead ahead path knob structure, wherein this operating knob is provided with a throw rod, and this throw rod is strip, and it is provided with one in upside and is the pointed instruction unit of circular cone.

Feature of the present utility model and attainable expection effect thereof are presented below:

1, wind dead ahead path knob structure of the present utility model, be that straight forming is just having, contrary gas-entered passageway and just, contrary exhaust passage is on body, very simply can reach control on the structure and adjust pneumatic tool just, the purpose of reverse and rotating speed, can reduce the processing assembly cost greatly, and this wind dead ahead path knob is operated this pneumatic tool forward and just is and changes, backward then for reversing, it is very clear easy to manipulate, removing known usefulness needs left and right sides axial displacement just reaching, reversing the inconvenience of operation, has more convenience in the use.

2, wind dead ahead path knob structure of the present utility model, can be by pulling operation unit or operating knob, reach these air inlet channels of control and exhaust channel extent of opening with respect to intake duct and air outlet flue, and control gaseous enters air quantity in the pedestal via wind dead ahead path knob, make this wind dead ahead path knob have the effect of easy control gaseous air quantity, simultaneously, these body both sides are equipped with operating knob, the user can pull operation unit or operating knob in the one-handed operation mode by left hand and right hand, rotate to rotate this body, and increase the easy-to-operat that it uses relatively.

3, wind dead ahead path knob structure of the present utility model, these rings are mounted on the circular groove that these body two side rings establish, and this body is with front and back rotating manner start, ring can not damaged because of the front and back rotating manner, improve its working life to have, and can reach the effect that prevents gas leakage accurately.

Description of drawings

Fig. 1 is the exploded view of known air tool wind dead ahead path knob.

Fig. 2 is the actuator state schematic representation of known air tool pedestal and wind dead ahead path knob.

Fig. 3 is the part exploded view of the utility model preferred embodiment.

Fig. 4 is the wind dead ahead path knob exploded view of the utility model preferred embodiment.

Fig. 5 is the pneumatic tool pedestal of the utility model preferred embodiment and the corresponding relation front view of wind dead ahead path knob.

Fig. 6 stops the actuator state schematic representation for the utility model preferred embodiment.

Fig. 7 stops the actuator state sectional view for the utility model preferred embodiment.

Fig. 8 stops another sectional view of actuator state for the utility model preferred embodiment.

Fig. 9 just transfers to moving view for the utility model preferred embodiment.

Figure 10 is the moving state sectional view of just transferring to of the utility model preferred embodiment.

Figure 11 is moving another sectional view of state of just transferring to of the utility model preferred embodiment.

Figure 12 is the moving another sectional view of state of just transferring to of the utility model preferred embodiment.

Figure 13 is the reverse actuator state schematic representation of the utility model preferred embodiment.

Figure 14 is the reverse actuator state sectional view of the utility model preferred embodiment.

Figure 15 is another sectional view of reverse actuator state of the utility model preferred embodiment.

Figure 16 is the another sectional view of reverse actuator state of the utility model preferred embodiment.

Embodiment

See also Fig. 3 to shown in Figure 5, the utility model provides a kind of preferred embodiment of wind dead ahead path knob structure, it is mounted on the air tool pedestal 30, this pedestal 30 is provided with a positioning hole 31, this positioning hole 31 is established a limiting tooth portion 312 in opening 311 rings of a predetermined side, this positioning hole 31 is provided with one in two openings, 311 outer rings and indicates mark 313, for the conveniently recognized pneumatic tool of user just, the direction of operating that reverses, an and intake duct 32 that is provided with on this positioning hole 31 and the pedestal 30, one just, contrary air outlet flue 33,34 and one just, against leading the way 35,36 conducting persons, in addition, this wind dead ahead path knob 4 includes a body 40, two operation units 50, two just, reverse gas-entered passageway 60,70, two just, inverted ventilating passage 80,90, and two circular grooves, 100 structures such as grade; Wherein:

This body 40, be shaped to the circular cylinder in relative positioning hole 31, it wears pivot in the positioning hole 31 of this pedestal 30, and but predetermined angle is rotated in relative positioning hole 31, in addition, this body 40 wears a spacing hole 41 in the position of relative limit tooth portion 312, is mounted on wherein for a spring 42 and a steel ball 43;

These operation units 50, be fixedly arranged on body 40 axial two sides respectively, wherein the operation unit 50 of relative these positioning hole 31 limiting tooth portions 312 sides protrudes from outside the positioning hole 31, pull this operation unit 50 with easy-to-operat and drive body 40 rotations, and the operation unit 50 of opposite side is arranged with an operating knob 51, and this operating knob 51 is convexly equipped with a throw rod 511 on its outside, this throw rod 511 is strip, and its upside is provided with one and is the pointed instruction unit of circular cone 5111, drive body 40 revolvers relatively conveniently to pull this operating knob 51, wherein, the operation unit 50 of relative limit tooth portion 312 sides is provided with a throw rod 52, this throw rod 52 is strip, and it is provided with one in relative sign mark 313 sides and is the pointed instruction unit of circular cone 521, can utilize the instruction unit 521 of this throw rod 52 to cooperate for the user indicates mark 313, makes pneumatic tool just to reach, the effect that reverses.

This forward gas-entered passageway 60, be arranged with between the ring wall of this body 40, it is arranged with and is shaped to L-shaped groove, and this forward gas-entered passageway 60 1 ends system be provided with one with intake duct 32 corresponding forward air inlet air inlet portions 61, the other end also is provided with the forward air inlet portion 62 of giving vent to anger, and this forward air inlet give vent to anger portion 62 with just lead the way 35 correspondingly, in addition, it is to be connected with a forward air inlet interconnecting part 63 that this forward air inlet air inlet portion 61 is given vent to anger between the portion 62 with the forward air inlet;

This reverse gas-entered passageway 70, be arranged with between the ring wall of this body 40, it is arranged with forward gas-entered passageway 60 and is shaped to mutually oppositely corresponding L shaped groove, and be located at this forward gas-entered passageway 60 1 sides, and these reverse gas-entered passageway 70 1 ends be provided with one with intake duct 32 corresponding reverse air inlet air inlet portions 71, the other end also is provided with the reverse air inlet portion 72 of giving vent to anger, and this reverse air inlet give vent to anger portion 72 be with contrary lead the way 36 corresponding, in addition, it is to be connected with a reverse air inlet interconnecting part 73 that this reverse air inlet air inlet portion 71 is given vent to anger between the portion 72 with reverse air inlet;

This forward exhaust passage 80, be arranged with between the ring wall of this body 40, it is arranged with and is shaped to L-shaped groove, and be located at the opposite side of these reverse gas-entered passageway 70 relative forward gas-entered passageways 60, and these forward exhaust passage 80 1 ends are provided with a forward exhaust air inlet portion 81, this forward exhaust air inlet portion 81 with contrary lead the way 36 corresponding, its the other end also is provided with the forward exhaust portion 82 of giving vent to anger, and this forward exhaust is given vent to anger portion 82 with just air outlet flue 33 is corresponding, in addition, it is to be connected with a forward exhaust interconnecting part 83 that this forward exhaust air inlet portion 81 is given vent to anger between the portion 82 with the forward exhaust;

This inverted ventilating passage 90, be arranged with between the ring wall of this body 40, it is arranged with forward exhaust passage 80 and is shaped to mutually oppositely corresponding L shaped groove, and be located at the opposite side of the reverse relatively gas-entered passageway 70 of this forward gas-entered passageway 60, and these inverted ventilating passage 90 1 ends are provided with an inverted ventilating air inlet portion 91, this inverted ventilating air inlet portion 91 with just lead the way 35 corresponding, its the other end also is provided with the inverted ventilating portion 92 of giving vent to anger, and this inverted ventilating is given vent to anger portion 92 with corresponding against air outlet flue 34, in addition, it is to be connected with an inverted ventilating interconnecting part 93 that this inverted ventilating air inlet portion 91 is given vent to anger between the portion 92 with inverted ventilating;

Two circular grooves 100, be located on this body 40 axial two sides, and each be arranged with respectively just taking shape in, inverted ventilating passage 80,90 aligns mutually, the opposite side of reverse gas-entered passageway 60,70, and these circular grooves 100 can be mounted on it for two rings 101, to prevent gas leakage, in addition, these rings 101 are constituted by O type ring.

By for further understanding the effect that the utility model structure characteristics, application technology means and institute's expection are reached, the utility model usage mode is narrated, believing be able to have more deep and concrete understanding to the utility model therefrom, as described below:

See also Fig. 6 to shown in Figure 8, when the operation unit 50 of this wind dead ahead path knob 4 turns to these pedestal 30 positioning holes 31 neutral positions, these body 40 complete closed are lived in the opening of air flue 32 conductings to positioning hole 31, gas can't be entered in wind dead ahead path knob 4 and the pedestal 30 via intake duct 32, and this wind dead ahead path knob 4 just, reverse gas-entered passageway 60,70 and just, inverted ventilating passage 80,90 all can't be with the intake duct 32 of this pedestal 30 and just, contraryly lead the way 35,36 correspondingly, this pneumatic tool system is under the state that shuts down.

See also Fig. 9 to shown in Figure 12, when the operation unit 50 of this wind dead ahead path knob 4 is pulled forward, a predetermined angle is rotated in these body 40 relative positioning holes 31 forward, the forward air inlet air inlet portion 61 of this forward gas-entered passageway 60 is communicated with intake duct 32, supplied gas can enter forward air inlet air inlet portion 61 via intake duct 32, again by stream by forward air inlet interconnecting part 63 and the forward air inlet portion 62 of giving vent to anger, gas can be entered and just leading the way in 35 that the forward air inlet gives vent to anger that portion 62 communicates, be rotated in the forward with the rotor that drives in the pneumatic tool cylinder, and reach the effect of just changeing, most of afterwards gas is directly discharged by cylinder, at this moment, the forward exhaust air inlet portion 81 of this forward exhaust passage 80 36 communicates with contrary leading the way, the gas that makes few part produce back pressure can 36 be expelled in the forward exhaust air inlet portion 81 along contrary leading the way, again by stream by forward exhaust interconnecting part 83 and the forward exhaust portion 82 of giving vent to anger, supplied gas can be discharged in giving vent to anger in the positive air outlet flue 33 that portion 82 communicates with the forward exhaust, to reach the function that few gas that partly produces back pressure is discharged fully, simultaneously, be mounted on ring 101 on the circular groove 100 and can prevent that gas from revealing away when circulation, can accurately gas be entered or discharge in this pedestal 30 via wind dead ahead path knob 4 to reach, in addition, when the user pulls this operation unit 50, because of group on the spacing hole 41 of this body 40 is provided with spring 42 and steel ball 43, can make this steel ball 43 be subjected to spring 42 to shore and limit in the limiting tooth portion 312 that is fixed in this positioning hole 31, and provide a position-limiting action to this operation unit 50, wherein, the user also can be by the operating knob 51 of pulling opposite side, drive corresponding operation unit 50 rotations, make body 40 rotate the effect of a predetermined angle to reach, make the user can be by a left side, the right hand makes this body 40 rotations in the one-handed operation mode, its easy-to-operat that uses with relative increase.

See also Figure 13 to shown in Figure 16, when the operation unit 50 of this wind dead ahead path knob 4 or operating knob 51 are pulled backward, these body 40 relative positioning holes 31 are rotation-predetermined angle backward, the reverse air inlet air inlet portion 71 of this reverse gas-entered passageway 70 is communicated with intake duct 32, supplied gas can enter reverse air inlet air inlet portion 71 via intake duct 32, again by stream by reverse air inlet interconnecting part 73 and the reverse air inlet portion 72 of giving vent to anger, make gas can enter contrary the leading the way in 36 of giving vent to anger with reverse air inlet that portion 72 communicates, to drive the rotor counter-rotating in the pneumatic tool cylinder, and reach the effect of reverse, most of afterwards gas is directly discharged by cylinder, at this moment, the inverted ventilating air inlet portion 91 of this inverted ventilating passage 90 35 communicates with just leading the way, the gas that makes few part produce back pressure can 35 be expelled in the inverted ventilating air inlet portion 91 along just leading the way, again by stream by inverted ventilating interconnecting part 93 and the inverted ventilating portion 92 of giving vent to anger, supplied gas can be discharged in giving vent to anger in the contrary air outlet flue 34 that portion 92 communicates with inverted ventilating, to reach the function that few gas that partly produces back pressure is discharged fully.

Therefore, this wind dead ahead path knob 4 can be by the angle of swing of pulling this operation unit 50 or operating knob 51, reach these gas-entered passageways 60 of control, 70 and exhaust passage 80,90 with respect to intake duct 32 and air outlet flue 33,34 extent of opening, and control gaseous enters air quantity in the pedestal 30 via wind dead ahead path knob 4, when this operation unit 50 or operating knob 51 rotate to both sides forward or backward, its relative extent of opening is to communicate fully, make the gas air quantity that enters in the pedestal 30 for maximum, pneumatic tool is just changeing or reversal speed is a maximum to reach, and makes this wind dead ahead path knob 4 have the effect of easy control gaseous air quantity.

In sum, the utility model has its splendid progressive practicability in fact in like product, all over looking into domestic and international technical data about this class formation, also finds no identical construction in the document and exists simultaneously.

The above only is of the present utility model one preferable possible embodiments, changes so use the equivalent structure that the utility model specification and claim do such as, ought to be included in the claim scope of the present utility model.

Claims (8)

1. wind dead ahead path knob structure, this wind dead ahead path knob is hubbed in the positioning hole of pneumatic tool pedestal, this positioning hole both sides tool opening, and be relatively set with an intake duct, two air outlet flues and two mutual conduction of leading the way in it; It is characterized in that:

This wind dead ahead path knob is provided with a columniform body, this body is worn in the positioning hole that pivot is limited in this pedestal relatively, and with respect to this positioning hole rotation predetermined angle, simultaneously, this body shaft is provided with an operation unit to being less than a side on both end sides, this operation unit convexedly stretches in outside the positioning hole, drives this body rotation; In addition, at least spaced two air inlet channels of moulding and exhaust channel between the ring wall of this body, wherein, this two gas-entered passageway is arranged with oppositely corresponding each other groove along its ring wall, and an end of this two gas-entered passageway respectively is provided with an air inlet portion that is docked and connected with intake duct, the other end then is provided with and two portions of giving vent to anger that lead the way and be docked and connected respectively, and simultaneously, the air inlet portion of each gas-entered passageway is given vent to anger with it, and each links to each other with an interconnecting part between portion; Then arrange in pairs or groups and be located at the both sides of two gas-entered passageways respectively in this two exhaust passage, and it is arranged with oppositely corresponding each other groove along the body ring wall, simultaneously, one end of this two exhaust passage respectively is provided with and two air inlet portions of leading the way and being docked and connected, in addition end then is provided with the portion of giving vent to anger that is docked and connected respectively with two air outlet flues, and the air inlet portion of each exhaust passage is given vent to anger with it, and each links to each other with an interconnecting part between portion.

2. wind dead ahead path knob structure as claimed in claim 1 is characterized in that: wherein this wind dead ahead path knob is provided with two circular grooves, and these circular grooves are located on this body shaft to two sides, and two rings are mounted on it.

3. wind dead ahead path knob structure as claimed in claim 2 is characterized in that: wherein this ring is an O type ring.

4. wind dead ahead path knob structure as claimed in claim 1, it is characterized in that: wherein this pedestal positioning hole is provided with a limiting tooth portion in the trip ring of relative operation unit one side, and this body also relative limit tooth portion is equipped with a spacing hole, one spring and steel ball are mounted on wherein, and this steel ball is subjected to spring to shore and limit to be fixed in the limiting tooth portion.

5. wind dead ahead path knob structure as claimed in claim 1 is characterized in that: wherein this positioning hole is equipped with a sign mark in the open outer side of relative operation unit side.

6. wind dead ahead path knob structure as claimed in claim 5 is characterized in that: wherein this operation unit is provided with a throw rod, and this throw rod is strip, and it is provided with one in relative sign mark side and is the pointed instruction unit of circular cone.

7. wind dead ahead path knob structure as claimed in claim 1 is characterized in that: wherein the opposite side of the relative operation unit of this body also is provided with an operation unit, and an operating knob is fixedly arranged on the operation unit, and this operating knob drives the body rotation.

8. wind dead ahead path knob structure as claimed in claim 7 is characterized in that: wherein this operating knob is provided with a throw rod, and this throw rod is strip, and it is provided with one in upside and is the pointed instruction unit of circular cone.

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