TWI771012B - Pneumatic tool with the effect of positioning the tilt angle of the head - Google Patents

Abstract

The present invention relates to a pneumatic tool, which comprises a handle, a head and a positioning component, wherein the handle is provided with an accommodating groove, the head is swayable and combined with the handle, and has a positioning Structure, the positioning assembly is assembled on the handle, and has an elastic body, a positioning piece and a braking piece, the elastic body and the positioning piece are set in the accommodating groove of the handle, and the positioning piece is far away from One end of the elastic body protrudes out of the accommodating slot and is locked with one of the positioning positions of the positioning structure. The positioning member compresses the elastic body and is separated from the positioning structure, thereby providing a pneumatic tool with the effect of positioning the tilt angle of the head.

Description

Pneumatic tool with the effect of positioning the tilt angle of the head

The present invention relates to a pneumatic tool, especially a pneumatic tool with a swingable head.

The existing pneumatic tool has a handle, a head and a pivot assembly, wherein the handle and the head are pivotally combined through the pivot assembly, so that the head can swing relative to the handle, in addition, The handle and the end away from the head are connected to an air supply source, and the handle has a gas flow channel inside, the head has an air motor, and the high-pressure gas system is fed into the handle from the air supply source The gas flow channel of the handle is further input to the air motor, thereby generating torque and performing work on the workpiece.

Since the handle and the head are swingably combined, when the relative position between the user and the workpiece is difficult to process with the original angle of the head, the user can rotate the head to adjust the relative position of the head relative to the head. The angle of the handle so that the user can machine the workpiece at the proper angle.

However, since the pivot assembly of the existing pneumatic tool includes a plurality of airtight rings, the plurality of airtight rings abut against the handle or the inner surface of the head that accommodates the pivot assembly to prevent gas from passing through the pivot assembly. There is leakage between the handle and the head. As a result, the frictional force between the airtight ring and the handle or the head makes it difficult for the head to swing, and the existing pneumatic tools lack positioning. It may swing relative to the handle during the machining process, causing damage to the workpiece or even endangering work safety. In addition, the structure of the existing pneumatic tool makes the shape of the flow channel between the gas flow channel of the handle and the air motor of the head complex and difficult to process. , To sum up, the existing pneumatic tools do have their place to be improved.

In order to solve the problem that the operation of adjusting the tilt angle of the head of the existing pneumatic tools is not easy and affects the use For the issue of safety, the present invention provides a pneumatic tool with the effect of positioning the tilt angle of the head, which is further described as follows.

The present invention relates to a pneumatic tool with the effect of locating the inclination angle of the head, which comprises: a main body, the main body includes a handle and a head, the head is swingably combined with the handle, wherein, The handle is provided with an accommodating groove, and a positioning structure is provided at the joint of the head and the handle. The positioning structure has a plurality of positioning positions, and when the head swings relative to the handle, among the plurality of positioning positions The different positioning positions will be opposite to the accommodating groove in turn; and a positioning component, which is assembled on the handle, the positioning component includes an elastic body, a positioning piece and a braking piece, the elastic body and the positioning member is arranged in the accommodating groove of the handle, and one end of the positioning member away from the elastic body protrudes from the accommodating groove and is locked with one of the positioning positions of the positioning structure, and the braking member is The handle is linearly movably arranged on the surface of the handle, and when the stopper moves, the positioning member can drive the positioning member to compress the elastic body and be separated from the positioning structure; wherein the handle has a length direction, the accommodating groove It is concavely formed along the longitudinal direction, and the braking member and the positioning member are linearly moved along a direction parallel to the longitudinal direction.

The above-mentioned pneumatic tool with the effect of positioning the head tilt angle, wherein the positioning structure is a gear, the end of the positioning member extending out of the accommodating slot has a tooth portion, which can be engaged with the gear, and the gear and the positioning All are metal products.

The above-mentioned pneumatic tool with the effect of positioning the head tilt angle, wherein the body is provided with two pins, the handle has a radial direction perpendicular to the length direction and a coupling groove, and the coupling groove is formed concavely along the radial direction, The head has a coupling protrusion, and the surface of the coupling protrusion has a ring groove. When the coupling protrusion is inserted into the coupling groove, the two pins pass through the side wall of the handle, protrude into the coupling groove, and are spaced apart from each other. It abuts against both sides of the annular groove of the combining protrusion, so as to combine the handle and the head.

Further, the above-mentioned pneumatic tool with the effect of positioning the tilt angle of the head, wherein each of the The latch is a spring pin.

The above-mentioned pneumatic tool with the effect of positioning the head tilt angle, wherein the positioning structure is a gear set on the combination convex portion, and one end of the positioning member protruding from the accommodating groove has a tooth portion, which can be matched with the gear. meshing, and the gear and the positioning member are both metal products.

The above-mentioned pneumatic tool with the effect of positioning the head tilt angle, wherein one end of the positioning member extending into the accommodating groove is provided with a groove, the elastic body is a compression spring, and one end of the compression spring is connected to the bottom of the accommodating groove. Abutting against, the other end of the compression spring extends into the groove.

The above-mentioned pneumatic tool with the effect of positioning the tilt angle of the head, wherein the handle has a through groove, the through groove penetrates through the side wall of the handle and communicates with the accommodating groove, the positioning component includes a connecting rod, the connecting rod The system can move in the through slot, and the two ends of the connecting rod are respectively abutted against the positioning piece and the braking piece.

In the above-mentioned pneumatic tool with the effect of positioning the head tilt angle, the braking member is in the shape of a ring, and the braking member is sleeved on the handle and abuts against the connecting rod.

In the above-mentioned pneumatic tool with the effect of positioning head inclination angle, the surface of the positioning member is provided with a concave portion, and one end of the connecting rod extends into the concave portion and abuts against the positioning member.

With the above-mentioned technical features, the present invention automatically locates the position of the head through the positioning component. Compared with the existing pneumatic tools, the operation is simple, and the brake can be adjusted and positioned only by pressing against the brake. The angle of the head relative to the handle, in addition, through this combination, the flow channel of the handle and the channel of the head can also be completed by simple linear processing. To sum up, the present invention effectively improves the existing pneumatic tools The disadvantage is to provide a pneumatic tool with the effect of positioning the inclination angle of the head.

10: Ontology

11: Grip

111, 112: Long Structure

111A, 112A: runner

113: accommodating slot

114: Grooving

115: Combined slot

12: Head

121: Cylinder

122: Rotor

123: Steering components

124: Combined convex part

125: Positioning Structure

126: Ring groove

127: Channel

13: latch

20: Positioning components

21: Elastomers

22: Positioning pieces

221: Groove

222: Recess

223: Teeth

24: connecting rod

25: Brakes

251: missing slot

D1: length direction

D2: Radial

FIG. 1 is a three-dimensional external view of a preferred embodiment of the present invention.

FIG. 2 is a partially enlarged perspective exploded view of a preferred embodiment of the present invention.

Figure 3 is a side sectional view of the preferred embodiment of the present invention.

FIG. 4 is an operation schematic diagram of a partial enlarged side cross-section of a preferred embodiment of the present invention.

5 is a partially enlarged front view operation schematic diagram of adjusting the tilt angle of the head according to the preferred embodiment of the present invention.

FIG. 6 is a partial enlarged side sectional view of the preferred embodiment of the present invention after adjusting the tilt angle of the head.

In order to understand the technical features and practical effects of the present invention in detail, and to realize it according to the contents of the description, the preferred embodiments shown in the drawings are further described in detail as follows: The present invention is a kind of positioning head tilt angle effect 1 to 3, the preferred embodiment includes a body 10 and a positioning assembly 20, wherein: the body 10 includes a handle 11, a head 12 and two pins 13, The handle 11 has a length direction D1 and a radial direction D2 perpendicular to the length direction D1. In a preferred embodiment of the present invention, the handle 11 is shown in FIG. 3 and consists of two elongated structures. 111, 112 are formed by screwing with each other, and the insides of the two elongated structures 111, 112 respectively have a flow channel 111A, 112A extending along the length direction D1, and the two flow channels 111A, 112A are communicated with each other, and the One end of the handle 11 is connected to a gas supply source, so that the high-pressure gas can pass through the two flow channels 111A and 112A.

Further, the handle 11 is provided with an accommodating groove 113 , a through groove 114 and a coupling groove 115 , wherein the accommodating groove 113 is concavely formed at one end of the handle 11 along the length direction D1 ; the through groove 114 penetrates the side wall of the handle 11 along the radial direction D2 and communicates with the accommodating groove 113, and the through groove 114 has a height along the length direction D1; the coupling groove 115 is concave along the radial direction D2 It is formed at one end of the handle 11 , is spaced apart from the accommodating groove 113 and the through groove 114 , and communicates with the flow channel 111A of one of the elongated structures 111 .

Please refer to FIG. 2 , FIG. 3 and FIG. 5 , the head 12 is swingably combined with the handle 11 , and the head 12 has a cylinder 121 , a rotor 122 , a steering assembly 123 , and a combination convex 124 and a positioning structure 125, wherein the cylinder 121 and the rotor 122 are located inside the head 12, and the rotor 122 is rotatably arranged in the cylinder 121, the rotor 122 is driven by high-pressure gas to rotate, so as to output torque; the steering assembly 123 is rotatably assembled on the side of the head 12 opposite to the cylinder 121, and the steering assembly 123 can be switched between two rotational positions, so as to change the high pressure gas driving the rotor 122 to rotate Direction, since the technology in this part is the prior art, it will not be described in detail here.

Further, as shown in FIG. 2 to FIG. 4 , the coupling protrusion 124 is inserted into the coupling groove 115 of the handle 11 and can be rotated relative to the coupling groove 115 . The surface of the coupling protrusion 124 has a ring groove 126 . After the protrusion 124 is inserted into the coupling groove 115 , the two pins 13 pass through the side wall of the handle 11 , extend into the coupling groove 115 , and abut against both sides of the annular groove 126 of the coupling protrusion 124 at intervals. In the preferred embodiment of the present invention, each of the pins 13 is a spring pin, so as to be pressed between the side wall of the handle 11 and the annular groove 126 , so that the coupling protrusion 124 can be prevented from being separated from the coupling groove 115 . , and the coupling protrusion 124 can still rotate relative to the coupling groove 115 so as to combine the handle 11 and the head 12 ; a channel 127 is concavely formed in the center of the coupling protrusion 124 , and the channel 127 extends along with the handle 11 . The length direction D1 is concavely formed, and the channel 127 is communicated with the steering assembly 123 and the space inside the cylinder 121. When the combination protrusion 124 is inserted into the combination groove 115 of the handle 11, the channel 127 127 communicates with the flow channel 111A through which the coupling groove 115 communicates.

The positioning structure 125 has a plurality of positioning positions. When the head 11 swings relative to the handle 12 , different positioning positions among the plurality of positioning positions will alternately and linearly face the accommodating groove 113 .

Please refer to FIG. 2 to FIG. 4 , the positioning assembly 20 is assembled on the handle 11 , and the positioning assembly 20 includes an elastic body 21 , a positioning member 22 , a connecting rod 24 and a braking member 25 , The elastic body 21 and the positioning member 22 are arranged in the accommodating groove 113 of the handle 11 ; the positioning member 22 protrudes from the accommodating groove 113 from the end of the positioning member 22 away from the elastic body 21 , and is connected with the positioning structure 125 The positioning position that is linearly opposite to the accommodating groove 113 is locked to fix the inclination angle of the head 12 relative to the handle 11; Further, as shown in FIG. 4 , one end of the positioning member 22 extending into the accommodating groove 113 is provided with a groove 221. In a preferred embodiment of the present invention, the elastic body 21 is a compression spring, and the compression spring One end of the spring is abutted against the bottom of the accommodating groove 113 , and the other end of the compression spring extends into the groove 221 .

As shown in FIG. 4 to FIG. 6 , the connecting rod 24 is inserted into the through slot 114 . Since the through slot 114 has a height along the length direction D1 , the connecting rod 24 can be inserted into the through slot 114 . One end of the connecting rod 24 abuts against the positioning member 22, and the other end protrudes from the outer surface of the handle 11. In a preferred embodiment of the present invention, the surface of the positioning member 22 is provided with a In the concave portion 222 , one end of the connecting rod 24 extends into the concave portion 222 and abuts against the positioning member 22 , thereby driving the positioning member 22 to move.

Please refer to FIG. 2 , FIG. 4 to FIG. 6 , the stopper 25 is linearly movably disposed on the surface of the handle 11 , and the stopper 25 and the connecting rod 24 protrude from the surface of the handle 11 . One end abuts against each other, so that when the braking member 25 moves, the positioning member 22 can be driven through the connecting rod 24 to linearly move and compress the elastic body 21 in a direction parallel to the longitudinal direction, and then separate from the positioning structure 125 In this way, the head 12 can swing relative to the handle 11 as shown in FIG. 5 , so that the user can adjust the proper inclination angle of the head 12 . When the user adjusts the angle, release the brake 25 , the elastic restoring force of the elastic body 21 will push up against the positioning member 22 , so that the positioning member 22 is locked with the positioning structure 125 again, thereby positioning the adjusted tilt angle of the head 12 .

In a preferred embodiment of the present invention, the braking member 25 is in the shape of an annular shape and is sleeved on the handle 11 . The inner side walls of the braking member 25 are diametrically opposite to form two recessed grooves 251 . A notch 251 is sleeved on one end of the connecting rod 24 protruding from the surface of the handle 11, so as to abut against the connecting rod 24, and the positioning member 22 can be driven to move through the connecting rod 24; further, in the comparative example of the present invention In a preferred embodiment, the positioning structure 125 is a set of gears set on the coupling convex portion 124, and one end of the positioning member 22 extending from the accommodating groove 113 has a tooth portion 223, which can be engaged with the gear, such a Therefore, the angle between the head 12 and the handle 11 can be any angle, and is positioned by meshing, and the gear and the positioning The parts 22 are all metal products, which can improve the structural strength and improve the reliability of the pneumatic tool; in other embodiments, the positioning structure 125 may also be integrally formed with the coupling protrusion 124 .

Besides, as shown in FIGS. 2 to 4 and 6 , the pneumatic tool is provided with a plurality of O-rings, for example, sleeved on the coupling protrusion 124 , sleeved on the rotating shaft of the steering assembly 123 , etc. , so as to maintain the airtightness of the pneumatic tool. The technical features and functions of this part are the same as those of the prior art, so they will not be described in detail here.

With the above-mentioned technical features, the present invention can automatically reset the position of the head 12 through the positioning assembly 20. Compared with the existing pneumatic tools, the operation is simple. It only needs to press the brake to adjust and adjust the position of the head 12. Positioning the angle of the head 12 relative to the handle 11, in addition, through this combination, the flow channels 111A, 112A of the handle 11 and the channel 127 of the head 12 can also be completed by simple linear processing. As described above, the present invention effectively improves the shortcomings of the existing pneumatic tools, thereby providing a pneumatic tool with the effect of positioning the tilt angle of the head.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Anyone with ordinary knowledge in the technical field can use the present invention without departing from the scope of the technical solutions proposed by the present invention. Equivalent embodiments with partial changes or modifications made to the disclosed technical content, which do not depart from the technical solution content of the present invention, are still within the scope of the technical solution of the present invention.

11: Grip

111A: runner

113: accommodating slot

114: Grooving

115: Combined slot

12: Head

124: Combined convex part

125: Positioning Structure

126: Ring groove

127: Channel

13: latch

20: Positioning components

21: Elastomers

22: Positioning pieces

222: Recess

223: Teeth

24: connecting rod

25: Brakes

251: missing slot

D1: length direction

D2: Radial

Claims (9)

A pneumatic tool with the effect of locating the inclination angle of the head, which includes: a body, the body includes a handle and a head, the head is swingably combined with the handle, wherein the handle is An accommodating slot is provided, and a positioning structure is provided at the joint of the head and the handle. The positioning structure has a plurality of positioning positions, and when the head swings relative to the handle, different positioning among the plurality of positioning positions The position will be opposite to the accommodating groove in turn; and a positioning component, the positioning component is assembled on the handle, the positioning component includes an elastic body, a positioning piece and a braking piece, the elastic body and the positioning piece The part is arranged in the accommodating groove of the handle, and one end of the positioning part away from the elastic body protrudes from the accommodating groove and is locked with one of the positioning positions of the positioning structure, and the braking part can move linearly is arranged on the surface of the handle, and when the stopper moves, it can drive the positioning member to compress the elastic body and be separated from the positioning structure; wherein the handle has a length direction, and the accommodating groove is along the The longitudinal direction is concavely formed, and the braking member and the positioning member are linearly moved along a direction parallel to the longitudinal direction. The pneumatic tool with the effect of positioning the inclination angle of the head according to claim 1, wherein the positioning structure is a gear, and one end of the positioning member protruding from the accommodating slot has a tooth portion, which can be engaged with the gear, And the gear and the positioning member are both metal products. The pneumatic tool with the effect of positioning the tilt angle of the head according to claim 1, wherein the body is provided with two pins, the handle has a radial direction perpendicular to the length direction and a coupling groove, and the coupling groove is along the The radial recess is formed, the head has a combined convex part, and the surface of the combined convex part has a ring groove. When the combined convex part is inserted into the combined groove, the two pins pass through the side wall of the handle and protrude into the The two sides of the ring groove of the coupling protrusion are placed in the coupling groove and abut against each other at intervals, thereby coupling the handle and the head. The pneumatic tool with the effect of positioning the tilt angle of the head according to claim 3, wherein each of the latches is a spring pin. The pneumatic tool with the effect of locating the tilt angle of the head according to claim 3, wherein the locating structure is a gear set on the combination convex portion, and one end of the locating member protruding from the accommodating groove has a tooth portion, The gear can be meshed with the gear, and the gear and the positioning member are both metal products. The pneumatic tool with the effect of positioning the inclination angle of the head according to claim 1, wherein a groove is formed at one end of the positioning member extending into the accommodating groove, the elastic body is a compression spring, and one end of the compression spring is connected to The bottom of the accommodating groove abuts against, and the other end of the compression spring extends into the groove. The pneumatic tool with the effect of positioning the tilt angle of the head according to any one of claims 1 to 6, wherein the handle has a through groove, and the through groove penetrates through the side wall of the handle and communicates with the accommodating groove , the positioning assembly includes a connecting rod, the connecting rod can move in the through slot, and the two ends of the connecting rod are respectively abutted against the positioning piece and the braking piece. The pneumatic tool with the effect of positioning the tilt angle of the head according to claim 7, wherein the stopper is in the shape of a ring, and the stopper is sleeved on the handle and abuts against the connecting rod. The pneumatic tool with the effect of positioning the head tilt angle according to claim 7, wherein a concave portion is provided on the surface of the positioning member, and one end of the connecting rod extends into the concave portion and abuts against the positioning member.

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