CN205823154U - Pneumatic drilling machine - Google Patents

Abstract

The utility model discloses a kind of pneumatic drilling machine, aim to provide the pneumatic drilling machine of a kind of automatic cut-off switch when not in use, its drip irrigation device is to include housing, blast pipe and discharge pipe, keying ball it is provided with in blast pipe, movable chamber, compression spring, hinged block it is additionally provided with on blast pipe, handle, hemispherical block and driving post, move by hand drive is opened and closed ball, thus complete closedown and the unlatching of blast pipe, and when handle stops driving and opens and closes ball, open and close ball to carry out resetting by blast pipe closedown by the reset response oneself of elastic component, so that user convenient safety when pneumatic drilling machine being carried out switching manipulation, the advantage with automatic cut-off switch when not in use.

Description

Pneumatic drilling machine

Technical field

This utility model relates to engineering machinery field, particularly to a kind of pneumatic drilling machine.

Background technology

Pneumatic drilling machine, is dependent on the compressed air of air compressor machine offer to drive beater mechanism and slew gear to complete boring work A kind of rig of industry.

At present, pneumatic drilling machine on the market, when being operated, is all directly next by opening switch or closing switch Control startup and the stopping of pneumatic drilling machine, owing to pneumatic drilling machine is when using, need staff's hands grasping the most pneumatic The two ends of rig, so that the keying operation of switch is inconvenient for by staff, and when carrying out the closedown switched, due to One hands goes closing switch to cause one end of pneumatic drilling machine not have hands to grip, so that the pneumatic drilling machine worked can not Keep balance, and be prone to slip out of the hand, thus badly influence the personal safety of staff, cause great potential safety hazard.

Utility model content

The purpose of this utility model is to provide a kind of pneumatic drilling machine, and it has the excellent of automatic cut-off switch when not in use Point.

Above-mentioned technical purpose of the present utility model has the technical scheme that

A kind of pneumatic drilling machine, including housing, blast pipe and discharge pipe, is provided with in blast pipe for opening and closing opening of blast pipe Closing device, switching device includes that diameter is more than blast pipe internal diameter and the keying ball inconsistent with blast pipe is connected with blast pipe And for open and close ball motion movable chamber, for open and close ball do return motion close blast pipe elastic component, be placed in blast pipe and for Drive keying ball to do linear movement and open the actuator of blast pipe.

It is arranged such, is driven by actuator and open and close ball motion, thus complete closedown and the unlatching of blast pipe, and driving When part stops driving keying ball, keying ball carries out resetting by the reset response oneself of elastic component and is closed by blast pipe, so that User convenient safety when pneumatic drilling machine being carried out switching manipulation, there is the excellent of automatic cut-off switch when not in use Point.

Arrange further: blast pipe is provided with for opening and closing the seal receptacle that ball is embedded, seal receptacle with opening and closing the inconsistent position of ball The one side inconsistent with opening and closing ball is set to inner concave arc surface.

It is arranged such, makes to open and close between ball and blast pipe tighter inconsistent by seal receptacle so that blast pipe Airtight performance more outstanding, the one side of seal receptacle is set to inner concave arc surface simultaneously, strengthens keying ball and sealing further Compactness between Zuo so that the using effect of whole pneumatic drilling machine is more outstanding.

Arrange further: actuator includes being arranged in blast pipe and one end drive rod inconsistent with keying ball, being articulated with The outer hinged block inconsistent with the drive rod other end of blast pipe, the handle being placed on hinged block, drive rod is for hinged block Rotate and drive keying ball to separate with seal receptacle.

It is arranged such, makes user for pneumatic drill by the annexation between handle, hinged block and drive rod The keying of machine is the easiest to be easily operated, also makes user more laborsaving when using pneumatic drilling machine simultaneously, and more pacifies Entirely.

Arrange further: hinged block is provided with the hemispherical block inconsistent with drive rod.

It is arranged such so that user, when opening and closing blast pipe by handle, makes the fortune of drive rod by hemispherical block Dynamic more efficient, also make drive rod more outstanding for the driving effect opening and closing ball so that opening of whole pneumatic drilling machine simultaneously Pass responds more precise and high efficiency.

Arrange further: blast pipe is sheathed with in housing, and blast pipe is arranged with the sealing ring inconsistent with housing.

It is arranged such so that the sealing of blast pipe and pneumatic drilling machine is more outstanding, so that pneumatic drilling machine is in work When making, compressed air can be used for driving the work of pneumatic drilling machine more when entering in housing, efficiently avoid due to Sealing property is the best and causes compressed-air actuated leakage so that compressed-air actuated use is more abundant, so that whole pneumatic The work efficiency of rig is higher.

Arrange further: elastic component is to be connected to movable cavity wall and the compression spring opened and closed between ball.

It is arranged such, by the elastic reset effect of compression spring, has been greatly reinforced the reset effect of elastic component so that open Close ball effective much sooner when resetting, thus be greatly reinforced the performance of whole pneumatic drilling machine so that pneumatic drilling machine exists Quit work and be the most effectively automatically switched off.

Arrange further: keying ball is nylon ball.

It is arranged such so that the weight opening and closing ball is lighter, better quality so that opens and closes ball and is not easily susceptible to after long-term use Abrasion, so that it is the most stable to open and close ball, so that the more stable height of the service behaviour of whole pneumatic drilling machine Effect.

Arrange further: the angle between drive rod and blast pipe axis is 55 °.

It is arranged such so that drive rod is when being promoted in blast pipe by hemispherical block, and hemispherical block rotates certain angle Degree, and the amplitude that drive rod is promoted is bigger, so that user is when pressing handle, the driving effect of drive rod is more excellent Elegant so that the service behaviour of whole pneumatic drilling machine is more outstanding.

Arrange further: handle is set to concave towards the bowhandle of blast pipe.

It is arranged such so that user is when using pneumatic drilling machine, and hand is convenient for the gripping of handle, arc The hand of structure and the people shape when gripping more conforms to so that user for pneumatic drilling machine use more easily Left-hand seat is also user when operation more safety labor-saving.

Arrange further: handle is provided with the limiting plate inconsistent with blast pipe by blast pipe one end.

It is arranged such, when pneumatic drilling machine does not uses, by limiting plate, handle is fixed well, also makes handle Hands maintains stable state, so that handle in use, is more easily gripped by user, the most logical Cross handle pneumatic drilling machine is opened and closed, thus be greatly reinforced the convenience of whole pneumatic drilling machine.

In sum, this utility model has the advantages that seal receptacle is set to opening and closing the inconsistent one side of ball Inner concave arc surface, not only makes to open and close the sealing property more closely, between the two of the connection between ball and seal receptacle more outstanding, When the most also making keying ball move under the driving of drive rod and the reset response of compression spring, the opening of blast pipe Size becomes larger, so that be adjusted by the convenient size to air inlet of press degree of regulation handle, thus right The power of pneumatic drilling machine is adjusted so that the motility of pneumatic drilling machine is higher, and using effect is more preferably.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment 1 pneumatic drilling machine；

Fig. 2 is the structural representation during closedown of embodiment 1 pneumatic drilling machine blast pipe；

Fig. 3 is embodiment 1 pneumatic drilling machine blast pipe structural representation when opening；

Fig. 4 is the enlarged diagram that in Fig. 1, A goes out.

In figure, 1, housing；2, casing；3, blast pipe；31, movable chamber；32, seal receptacle；33, ball is opened and closed；34, compression bullet Spring；35, hinged block；36, handle；37, hemispherical block；38, drive rod；39, limiting plate；4, discharge pipe；5, intake stack；6, close Seal；7, foam-rubber cushion；8, the first rotating shaft；81, the first impeller；82, driving tooth；83, fixing bar；84, nut；85, block is closed； 851, chamber is accommodated；852, steel ball；853, ventilation shaft；86, spacing ring；87, stretching spring；9, the second rotating shaft；91, the second leaf Wheel；92, driven gear；10, bearing.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Embodiment 1: a kind of pneumatic drilling machine, as it is shown in figure 1, include housing 1, the two ends of housing 1 are arranged with blast pipe 3 respectively Be all arranged with the sealing ring 6 inconsistent with housing 1 on discharge pipe 4, and blast pipe 3 and discharge pipe 4, housing 1 is internal is provided with case Body 2, casing 2 is provided with, with the junction of housing 1, the foam-rubber cushion 7 being placed between the two.

Being equipped with the first rotating shaft 8 and the second rotating shaft 9 on casing 2, the two ends of the first rotating shaft 8 and the second rotating shaft 9 are passed through respectively Bearing 10 is connected with casing 2, and the first rotating shaft 8 and the second rotating shaft 9 are arranged with the first interlaced impeller 81 and respectively Two impellers 91, the upper end of the first rotating shaft 8 is provided with driving tooth 82, and the upper end of the second rotating shaft 9 is fixed with and is meshed with driving tooth 82 Driven gear 92, the lower end of the second rotating shaft 9 is connected with drill bit.

As shown in Figure 2 to Figure 3, being provided with movable chamber 31 in blast pipe 3, the inwall in movable chamber 31 is fixed with same with blast pipe 3 The seal receptacle 32 of axle, seal receptacle 32 is set to inner concave arc surface by the one side of blast pipe 3 opening, seal receptacle 32 is embedded with and imploded arcs The keying ball 33 that face is inconsistent, and open and close the diameter internal diameter more than blast pipe 3 of ball 33, start between ball and movable chamber 31 inwall It is provided with compression spring 34, opens and closes ball 33 and be set to nylon ball.

Blast pipe 3 is hinged with hinged block 35 by the outer wall in movable chamber 31, and hinged block 35 is fixed with handle 36, and handle 36 leans on One end of blast pipe 3 is additionally provided with the limiting plate 39 inconsistent with blast pipe 3, is additionally provided with hemispherical block 37 on hinged block 35 simultaneously, Blast pipe 3 is by being equipped with drive rod 38 at hemispherical block 37, one end of drive rod 38 is inconsistent with keying ball 33, drive rod 38 The other end is inconsistent with hemispherical block 37, and between drive rod 38 and blast pipe 3 axis, angle is 55 °.

As shown in Figure 4, the lower end of the first rotating shaft 8 is provided with the fixing bar 83 coaxial with the first rotating shaft 8, fixes bar 83 another End is arranged with nut 84, and fixing bar 83 is arranged with closing block 85, and the closing reciprocal sliding motion of block 85 is on fixing bar 83, and envelope Closing to be connected between block 85 with nut 84 and have stretching spring 87, casing 2 is by being provided with the limit inconsistent with closing block 85 at fixing bar 83 Position ring 86, and to close block 85 one side inconsistent with spacing ring 86 be cambered surface setting.

Close in block 85 and be provided with receiving chamber 851, and accommodate chamber 851 to be symmetrical arranged along the circumferencial direction closing block 85 be two Individual, it is provided with the most movable steel ball 852 in accommodating chamber 851, accommodates chamber 851 and be additionally provided with ventilation shaft 853, accommodate chamber 851 and lead to Cross ventilation shaft 853 to be connected with blast pipe 3 road.

When pneumatic drilling machine works, first pass through air compressor machine or other power set keep pneumatic drilling machine to be in lasting quilt Under the state of conveying wind.Now the both hands of user hold blast pipe 3 and discharge pipe 4 respectively, hold the hands of blast pipe 3 by finger It is positioned on handle 36.Now owing to there being the wind of inside flowing in blast pipe 3, when inwardly the wind of flowing is inconsistent with keying ball 33 Promote and open and close ball 33 direction motion in blast pipe 3, be provided with seal receptacle 32 owing to opening and closing the side of ball 33, so at the work of wind-force Inconsistent with seal receptacle 32 with lower keying ball 33, so that blast pipe 3 road is closed, wind-force can not enter into pneumatic drilling machine Inside, so now pneumatic drilling machine does not works.

When starting pneumatic drilling machine, first pass through finger and press handle 36 and make handle 36 rotate and move closer to air intake Pipe 3, the rotation rotating the hinged block 35 that drive is connected with handle 36 of handle 36, hinged block 35 drives on hinged block 35 again Hemispherical block 37 is gradually close to blast pipe 3, hemispherical block 37 gradually with blast pipe 3 near during, hemispherical block 37 Due to inconsistent with drive rod 38, and the angle between drive rod 38 and blast pipe 3 axis is 55 ° so that drive rod 38 is gradually Sliding in blast pipe 3, the drive rod 38 sliding in blast pipe 3 drives the most inconsistent keying ball 33 to produce motion, opens Close ball 33 to by blast pipe 3 opening one lateral movement, now open and close ball 33 and gradually separate with seal receptacle 32, so that blast pipe 3 Road is gradually opened.

When pressing handle 36 by finger, finger for handle 36 to press amplitude the biggest, drive rod 38 enter into into In airduct 3 the deepest, and it is the biggest to open and close the ball 33 motion amplitude to blast pipe 3 opening side, due to seal receptacle 32 with open and close The inconsistent one side of ball 33 is inner concave arc surface, so along with opening and closing the motion of ball 33, between opening and closing between ball 33 and seal receptacle 32 Gap is increasing, and it is the strongest to enter into the wind-force within pneumatic drilling machine, so coming according to the degree of pressing of regulation handle 36 Realize the regulation of wind-force size, namely realize the regulation of pneumatic drilling machine power.

During wind enters into pneumatic drilling machine, wind is inconsistent with keying ball 33 in blast pipe 3, owing to opening and closing ball 33 Spherical form, wind-force along open and close ball 33 cambered surface move in pneumatic drilling machine, wind-force by open and close ball 33 resistance the least, When pressing handle 36, user will not be painstaking.

Wind, from opening and closing at ball 33 through later, moves in housing 1, inconsistent with closing block 85 by the flowing of blast pipe 3 road, Owing to wind-force effect promotes closing block 85 to move upward, close block 85 and be gradually disengaged with spacing ring 86, close block 85 and spacing ring Producing gap between 86, until it is inconsistent with casing 2 to close block 85, the gap now closed between block 85 and spacing ring 86 reaches Optimum state, wind flows through from gap, flows in the chamber residing for the first impeller 81.

Now the first impeller 81 start under the effect by wind-force rotate, the driving tooth 82 of the first impeller 81 upper end also with Rotation, driving tooth 82 drives the driven gear 92 being meshed therewith to rotate, driven gear 92 drive with self fixing second Rotating shaft 9 rotates, and the second rotating shaft 9 drives the rotation of the drill bit that self other end arranges again.

When the first rotating shaft 8 rotates, close block 85 and be also carried out rotating along with the rotation of the first rotating shaft 8, now close block 85 In symmetrically arranged steel ball 852 also concomitant rotation, due to steel ball 852 in the receiving chamber 851 closed in block 85 can free motion, So the steel ball 852 being in rotary state is strengthened closing block 85 and the rotation of the first rotating shaft 8 by centrifugal force.At steel ball 852 While rotating, the wind closing block 85 is promoted to have part to enter in receiving chamber 851 by ventilation shaft 853, at wind-force Effect under, steel ball 852 is in all the time and accommodates in chamber 851 side by closing block 85 edge, the now centrifugal force of steel ball 852 Maximum so that the stiffening effect that steel ball 852 rotates for the first rotating shaft 8 is optimal.

Wind, after impeller rotates, continues to flow, finally by discharge pipe 4 row of housing 1 other end in casing 2 Go out, thus be finally completed the startup of whole pneumatic drilling machine.

When pneumatic drilling machine has worked, now unclamping the finger pinning handle 36, now drive rod 38 is in nature shape State, compression spring 34 is stretched by the reset of self, and the restoring force of compression spring 34 drives and opens and closes ball 33 to seal receptacle 32 Moving in direction, until it is inconsistent with seal receptacle 32 to open and close ball 33, now blast pipe 3 road is closed, and no longer has wind to enter in housing 1 Portion.In opening and closing the motor process that ball 33 is inconsistent with seal receptacle 32, the motion drive opening and closing ball 33 direction in blast pipe 3 is driven Lever 38 is moved outside blast pipe 3, and drive rod 38 promotes hemispherical block 37 to be gradually distance from blast pipe 3, so that hinged block 35 And handle 36 rotates to the direction deviating from blast pipe 3, until it is inconsistent with seal receptacle 32 to open and close ball 33.

Blast pipe 3 be open and close ball 33 close time, it is internal that the most lasting wind enters into housing 1, so now sealing Closing block 85 not acted on by wind-force, stretching spring 87 resets, and promotes closing block 85 to reset simultaneously, until and spacing ring 86 is inconsistent, and then closes blast pipe 3 road, now also has the wind of residual in the housing 1 of pneumatic drilling machine, owing to having closed block 85 Blast pipe 3 road is closed, so wind will not back flow backwards.

When closing block 85 and being inconsistent with spacing ring 86, blast pipe 3 road is closed, and the first impeller 81 does not has its turn of Wind power propelling Dynamic, keep static, now second impeller the 91, first rotating shaft the 8, second rotating shaft 9, driving tooth 82, driven gear 92 all keep static, Do not rotate, not rotating so being placed in the steel ball 852 accommodated in chamber 851, not producing centrifugal force.

So far, pneumatic drilling machine quits work completely.

The above embodiments are only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims (10)

1. a pneumatic drilling machine, including housing (1), blast pipe (3) and discharge pipe (4), it is characterised in that: described blast pipe (3) be provided with the switching device for opening and closing blast pipe (3) in, switching device include diameter be more than blast pipe (3) internal diameter and with enter The inconsistent keying ball (33) of airduct (3) is connected with blast pipe (3) and for opening and closing movable chamber (31) that ball (33) moves, supplying Open and close ball (33) to do the elastic component of return motion closedown blast pipe (3), be placed in blast pipe (3) and be used for driving keying ball (33) to do The actuator of blast pipe (3) is opened in linear movement.

Pneumatic drilling machine the most according to claim 1, it is characterised in that: described blast pipe (3) offsets with opening and closing ball (33) Tactile position is provided with for opening and closing ball (33) seal receptacle (32) that is embedded, and seal receptacle (32) one side inconsistent with keying ball (33) sets For inner concave arc surface.

Pneumatic drilling machine the most according to claim 1, it is characterised in that: described actuator includes being arranged in blast pipe (3) And one end drive rod (38) inconsistent with keying ball (33), be articulated with blast pipe (3) and offset with drive rod (38) other end outward The hinged block (35) touched, the handle (36) being placed on hinged block (35), drive rod (38) is for the rotation with hinged block (35) Keying ball (33) is driven to separate with seal receptacle (32).

Pneumatic drilling machine the most according to claim 3, it is characterised in that: described hinged block (35) is provided with and drive rod (38) inconsistent hemispherical block (37).

Pneumatic drilling machine the most according to claim 3, it is characterised in that: described blast pipe (3) is sheathed with in housing (1), Blast pipe (3) is arranged with the sealing ring (6) inconsistent with housing (1).

Pneumatic drilling machine the most according to claim 1, it is characterised in that: described elastic component is for being connected in movable chamber (31) Wall and the compression spring (34) opened and closed between ball (33).

Pneumatic drilling machine the most according to claim 6, it is characterised in that: described keying ball (33) is nylon ball.

Pneumatic drilling machine the most according to claim 4, it is characterised in that: described drive rod (38) and blast pipe (3) axis Between angle be 55 °.

Pneumatic drilling machine the most according to claim 8, it is characterised in that: described handle (36) is set to concave towards blast pipe (3) Bowhandle (36).

Pneumatic drilling machine the most according to claim 9, it is characterised in that: described handle (36) sets by blast pipe (3) one end There is the limiting plate (39) inconsistent with blast pipe (3).