TWI742856B - Pneumatic tool - Google Patents

Abstract

A pneumatic tool is provided, including a main body and an air pipe. The main body includes a handle portion, a connecting portion, a working portion, a driving head and a channel. The connecting portion is swingably disposed on the handle portion. The working portion is swingably disposed on the connecting portion. The driving head is disposed on the working portion. The driving head can swing twice relative to the handle. The channel goes through the handle portion, a connecting portion and a working portion, than the channel extends to the driving head. The air pipe is disposed in the channel and communicated with the driving head.

Description

Pneumatic tools

The present invention is related to pneumatic tools.

Pneumatic tools are tools that use compressed air as a power source to drive motors. Compressed gas has many advantages such as easy sources, low pollution, good explosion-proof, and easy transportation and storage. Therefore, pneumatic tools are often used in machinery factories for drilling. Hole, assembly, grinding and polishing, tapping... and other processing operations, such as the pneumatic tools shown in Taiwan patents I696526 and I690395 belong to this category.

However, with the various problems of insufficient space allowance such as the different shapes of the processed components and the narrow construction environment, the constructors often cannot smoothly extend the pneumatic tools into the place to be processed for processing, resulting in increased processing time and reduced processing quality. Cons.

Therefore, it is necessary to provide a novel and progressive pneumatic tool to solve the above-mentioned problems.

The main purpose of the present invention is to provide a pneumatic tool in which the drive part can be deflected for the second time relative to the grip part through the swing part, and then can smoothly extend into the place to be processed for processing in a narrow environment with insufficient space margin.

To achieve the above objective, the present invention provides a pneumatic tool, which includes a body and a trachea. The body includes a grip part, a connecting part, a working part, a driving head and a channel. The connecting part is swingably arranged on the grip part, the working part is swingably arranged on the connecting part, and the driving head is arranged At the working part, the driving head can further swing with respect to the grip part, the passage penetrates the grip part, the connecting part and the working part extend to the driving head; the trachea passes through the passage to communicate with the driving head Drive the head.

1: body

2: Grip

21: The first ball joint

211: first head

212: The first neck

213: first side hole

3: Connection part

31: The first set of connectors

311: The first volume hole

312: first through hole

32: The second set of connectors

321: second volume hole

322: second through hole

33: Clip

34: connecting piece

35: bump structure

351: ditch

4: Work Department

41: Second ball joint

411: second head

412: second neck

413: second side hole

5: Drive head

6: Channel

7: trachea

81: Axial

82: First radial

83: second radial

91: first plane

92: second plane

Fig. 1 is a perspective view of an embodiment of the present invention.

Figure 2 is a partial exploded view of Figure 1;

Fig. 3 is a perspective view of a connecting portion of an embodiment of the present invention.

Fig. 4 is a cross-sectional view of Fig. 1.

Fig. 5 is a three-dimensional view of a secondary deflection according to an embodiment of the present invention.

Fig. 6 is a perspective view of Fig. 5 from another perspective.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to FIGS. 1 to 6, which show an embodiment of the present invention. The pneumatic tool of the present invention includes: a body 1 and a trachea 7.

The body 1 includes a grip portion 2, a connecting portion 3, a working portion 4, a driving head 5, and a channel 6. The connecting portion 3 is swingably arranged on the grip portion 2, and the working portion 4 is swingably arranged. At the connecting part 3, The driving head 5 is arranged in the working part 4, and the driving head 5 can perform a secondary swing relative to the grip part 2, and can have many deflection angles, so it can effectively dodge obstacles and extend into the place to be processed. Perform processing operations; wherein the passage 6 penetrates the grip portion 2, the connecting portion 3 and the working portion 4 and extends to the driving head 5, the trachea 7 passes through the passage 6 to communicate with the driving head 5, and the trachea 7 It is used to guide high-pressure gas to enter to provide power to the driving head 5.

A first connecting portion is provided on the grip portion 2, and a second connecting portion is provided on one end of the connecting portion 3. One of the first connecting portion and the second connecting portion is a first ball joint 21 and the other It is a first sleeve joint 31, and then one end of the connecting portion 3 and the grip portion 2 are connected with each other through the first ball joint 21 and the first sleeve joint 31 so as to be relatively swingable; wherein, the trachea 7 Along the channel 6 passes through the inside of the first ball joint 21 and the inside of the first set of joint 31. In short, the combination of the first ball joint 21 and the first set of joints 31 can endow the connecting portion 3 with the ability to perform a variety of angular swings and relative rotations relative to the grip portion 2.

Similarly, a third connecting portion is provided at the other end of the connecting portion 3, a fourth connecting portion is provided on the working portion 4, and one of the third connecting portion and the fourth connecting portion is a second ball The joint 41 and the other is a second set of joints 32, and the working portion 4 and the other end of the connecting portion 3 are connected to each other through the second ball joint 41 and the second set of joint 32 so as to be relatively swingable. Wherein, the air pipe 7 passes through the inside of the second ball joint 41 and the inside of the second set of joint 32 along the channel 6. In short, the combination of the second ball joint 41 and the second set of joints 32 can endow the working part 4 with the ability to perform various angles and relative rotations relative to the connecting part 3.

In this embodiment, the first connection portion is the first ball joint 21, the fourth connection portion is the second ball joint 41, the second connection portion is the first sleeve joint 31, and the third connection portion Is the second set of joints 32, through the double ball joint (the first ball joint 21 and the second ball joint 41) and the double set of joints (the first set The connection configuration of the joint 31 and the second set of joints 32) allows the user to move the driving head 5 in a multi-dimensional spatial position relative to the grip 2 through two deflection of different directions and angles, which can be widely used In a variety of practical environments.

The connecting portion 3 defines an axial direction 81, and the first set of joints 31 and the second set of joints 32 are disposed at two opposite ends of the connecting portion 3 in the axial direction 81. Specifically, the first set of joint 31 includes a first receiving hole 311 and two first through holes 312, the first receiving hole 311 is connected to the channel 6, and the two first through holes 312 are along a second radial direction. 83 is connected to the first receiving hole 311; similarly, the second set of joint 32 includes a second receiving hole 321 and two second through holes 322, the second receiving hole 321 communicates with the channel 6, the two second The through hole 322 communicates with the second receiving hole 321 along a first radial direction 82. Along the axial direction 81, the direction of the first radial direction 82 is perpendicular to the direction of the second radial direction 83.

More specifically, the first ball joint 21 includes a first head 211 and a first neck 212 connected to each other. The first neck 212 is connected to the grip 2, and the first head 211 can be It is rotatably accommodated in the first receiving hole 311. When the connecting portion 3 swings on a first plane 91 with the first head 211 as the origin, the first neck portion 212 can be swung into the first The through hole 312, whereby the connecting portion 3 can swing with respect to the grip portion 2 in a wide range of angles. In other words, the first through hole 312 provides sufficient swing space margin for the first neck portion 212. In this embodiment In this case, the maximum swing angle of the connecting portion 3 is 180 degrees. Similarly, the second ball joint 41 includes a second head 411 and a second neck 412 connected to each other. The second neck 412 is connected to the working part 4, and the second head 411 is rotatable The ground is accommodated in the second accommodating hole 321. When the working part 4 swings on a second plane 92 with the second accommodating hole 321 as the origin, the second neck portion 412 can be swung into the second piercing hole. Hole 322, whereby the working part 4 can swing in a wide range of angles relative to the connecting part 3. In this embodiment, the maximum swing angle of the working part 4 is 180 degrees; wherein, the second plane 92 is perpendicular to the First plane 91.

Preferably, the first ball joint 21 further includes two first side holes 213, the two first side holes 213 pass through the first head 211 and laterally communicate with the channel 6, and the second ball joint 41 further includes There are two second side holes 413, and the two second side holes 413 penetrate the second head 411 and communicate with the channel 6 laterally. In this way, when the first side hole 213 and the first through hole 312 communicate with each other in the direction of the second radial direction 83 and the connecting portion 3 swings on the first plane 91, part of the air pipe 7 can be bent Folded through the first side hole 213, the first side hole 213 provides enough bending space for the part of the air pipe 7, thereby ensuring that the pipe diameter of the air pipe 7 will not be squeezed and reduced due to deflection Or interrupt. Similarly, when the second side hole 413 and the second through hole 322 communicate with each other in the direction of the first radial direction 82 and the connecting portion 3 swings on the second plane 92, part of the air pipe 7 can be bent Fold through the second side hole 413.

It is worth mentioning that the connecting portion 3 includes two clamping members 33 and at least one connecting member 34. The at least one connecting member 34 connects the two clamping members 33 along a direction perpendicular to the axial direction 81. The two opposite ends are respectively sleeved on the first ball joint 21 and the second ball joint 41. In addition, the at least one connecting piece 34 is threaded and screwed to the two clamping pieces 33, and the two clamping pieces 33 can be adjusted in space along the at least one connecting piece 34. Therefore, during use, the user can adjust the two clamps according to requirements. The interval between the two clamping members 33 is used to control the clamping force of the first ball joint 21 and the second ball joint 41 between the two clamping members 33. For example, the greater the interval between the two clamping members 33, the smaller the clamping force. Easy to rotate relative to each other. In this embodiment, the number of the at least one connecting member 34 is two, and the two connecting members 34 are arranged symmetrically and oppositely with the axial direction 81 as the axis, so as to connect the two clamping members 33 stably and reliably.

Preferably, a concavo-convex structure 35 is provided on the outer surface of each clip 33, and the concavo-convex structure 35 is used to increase the contact area for the user to make rotation adjustments. In this embodiment, the concave-convex structure 35 includes a plurality of concave grooves 351 extending along the axial direction 81 to increase the contact area more comprehensively.

1: body

2: Grip

21: The first ball joint

3: Connection part

31: The first set of connectors

32: The second set of connectors

4: Work Department

41: Second ball joint

5: Drive head

Claims (10)

A pneumatic tool includes: a body, including a grip, a connecting portion, a working portion, a driving head, and a channel. The connecting portion is swingably arranged on the grip, and the working portion is swingably arranged on the A connecting part, the driving head is arranged on the working part, and the driving head can perform a secondary swing relative to the grip part, the channel penetrates the grip part, the connecting part and the working part extend to the driving head; and a The trachea is connected with the driving head through the passage, and has flexibility and can be bent correspondingly with the swing of the connecting part and the working part. The pneumatic tool according to claim 1, wherein a first connecting portion is provided at the grip portion, a second connecting portion is provided at one end of the connecting portion, and one of the first connecting portion and the second connecting portion is A first ball joint and the other is a first set of joints, and then one end of the connecting portion and the grip portion are connected to each other through the first ball joint and the first set of joints so as to be relatively swingably connected; wherein, The air pipe passes through the inside of the first ball joint and the inside of the first set of joints along the channel. The pneumatic tool according to claim 2, wherein a third connecting part is provided at the other end of the connecting part, a fourth connecting part is provided at the working part, one of the third connecting part and the fourth connecting part Is a second ball joint and the other is a second set of joints, and the working part and the other end of the connecting part are connected to each other through the second ball joint and the second set of joints so as to be relatively swingably connected; Wherein, the air pipe passes through the inside of the second ball joint and the inside of the second set of joints along the channel. The pneumatic tool according to claim 3, wherein the first connecting portion is the first ball joint, the fourth connecting portion is the second ball joint, the second connecting portion is the first set of joints, and the third The connecting part is the second set of joints. The pneumatic tool according to claim 4, wherein the connecting portion defines an axial direction, the first set of joints and the second set of joints are provided at two opposite ends of the connecting portion in the axial direction, and the first set of joints includes There is a first containing hole and two first through holes, the first containing hole communicates with the channel, the two first through holes communicate with the first containing hole along a second radial direction; the second set of joints includes a first Two accommodating holes and two second through holes, the second accommodating hole communicates with the channel, the two second through-holes communicate with the second accommodating hole along a first radial direction, viewed along the axial direction, the first The radial direction is perpendicular to the second radial direction; the first ball joint includes a first head and a first neck that are connected to each other, the first neck is connected to the grip, the first head The portion is rotatably received in the first receiving hole, and when the connecting portion swings on a first plane with the first head as the origin, the first neck can be swung into the first through hole; The second ball joint includes a second head and a second neck that are connected to each other, the second neck is connected to the working part, and the second head is rotatably received in the second receiving hole, When the working part swings in a second plane with the second containing hole as the origin, the second neck can be swung into the second through hole, wherein the second plane is perpendicular to the first plane. The pneumatic tool according to claim 5, wherein the first ball joint further includes two first side holes, the two first side holes penetrate the first head and laterally communicate with the channel, and the second ball joint further Contains two second side holes, the two second side holes penetrate the second head to laterally communicate with the channel; wherein, when the first side hole and the first through hole are mutually in the second radial direction When connected and the connecting portion swings on the first plane, a portion of the trachea can bend through the first side hole; when the second side hole and the second through hole are in communication with each other in the first radial direction and When the connecting portion swings on the second plane, a part of the air pipe can be bent through the second side hole. The pneumatic tool according to claim 5 or 6, wherein the connecting portion includes two clamping members and at least one connecting member, and the at least one connecting member connects the two clamping members in a direction perpendicular to the axial direction. The pneumatic tool according to claim 7, wherein the at least one connecting piece is threaded and screwed to the two clamping pieces, and the two clamping pieces can adjust the distance along the at least one connecting piece. The pneumatic tool according to claim 7, wherein a concave-convex structure is provided on the outer surface of each clip, and the concave-convex structure is used to increase the contact area. The pneumatic tool according to claim 6, wherein the connecting portion includes two clamping members and at least one connecting member, and the at least one connecting member connects the two clamping members in a direction perpendicular to the axial direction; the at least one connecting member passes through The two clamping members are screwed to the two clamping members, and the distance between the two clamping members can be adjusted along the at least one connecting member; a concave-convex structure is provided on the outer surface of each clamping member, and the concave-convex structure is used to increase the contact area; The number is two, and the two connecting members are arranged symmetrically and oppositely with the axial direction as the axis; the concave-convex structure includes a plurality of grooves extending along the axial direction.

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