TWM625979U - Pneumatic tool - Google Patents

Abstract

The present invention relates to a pneumatic tool, which includes: a first member including a first air passage and a second air passage; a second member including an air chamber for accommodating a rotor; and a A pivoting unit defines an axial direction, the pivoting unit pivots the first member and the second member, so that the second member can swing relative to the first member by the pivoting unit as an axis, and includes an advance air flow channel, an exhaust flow channel, a first communication hole, a second communication hole and at least a third communication hole, the intake flow channel, the first communication hole, the first ventilation flow channel and the The air chamber is communicated, and the exhaust flow channel, the second communication hole, the at least one third communication hole, the second air flow channel and the air chamber are communicated with each other.

Description

air tools

This creation is about a pneumatic tool.

Pneumatic tools can also be called pneumatic tools, which use high-pressure gas to drive the rotor in the cylinder to rotate, and then drive the tool to rotate through the drive head. The use of high-pressure gas as a power source has the advantages of environmental protection, no pollution, and easy availability, so it is widely loved by people in this field.

When using a pneumatic tool, it is often affected by environmental obstacles, and in a narrow environment, it is necessary to bend the wrist joint to avoid obstacles, which is quite inconvenient in operation and difficult to apply force. Furthermore, in the past, the gas of the pneumatic tool was exhausted from the drive head, and the exhaust flow channel was too complicated.

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

The main purpose of the present invention is to provide a pneumatic tool, through which the first member and the second member are pivotally connected through a pivoting unit, and the air intake runner and the exhaust runner on the pivoting unit can simplify the structure of the air channel, and It can smoothly intake and exhaust in the process of pivoting.

In order to achieve the above object, the present invention provides a pneumatic tool, comprising: a first member including a first air passage and a second air passage; a second member including an air for accommodating a rotor a chamber; and a pivot unit, which defines an axial direction, the pivot unit pivots the first member and the second member, so that the second member can swing relative to the first member by the pivot unit as an axis, It includes an intake flow channel, an exhaust flow channel, a first communication hole, a second communication hole and at least a third communication hole, the intake flow channel, the first communication hole, the first communication hole The ventilation channel is communicated with the air chamber, and the exhaust channel, the second communication hole, the at least one third communication hole, the second ventilation channel and the air chamber are communicated with each other.

1: The first component

11: The first air passage

12: Second air passage

13: The first subject

14: pivot ear

15: Plug space

16: Outer opening

17: The first pivot hole

18: The first ring groove

19: Outer through hole

2: Second component

21: Air chamber

22: Second Subject

23: plug-in part

24: Second pivot hole

25: The second ring groove

26: Ring groove

27: The first channel

28: Second channel

29: Flow channel

3: Pivot unit

30: Connecting shaft

31: Intake runner

32: Exhaust runner

33: The first communication hole

34: Second communication hole

35: The third communication hole

36: compartment

37: Opening

38: Closures

39: Fourth communication hole

4: Rotor

5: Cylinder

6: Rear end cover unit

61: first channel

62: Second channel

7: Additional Units

71: Guide channel

8: Leak-proof parts

9: Assembly direction

FIG. 1 is a perspective view of a preferred embodiment of the creation.

FIG. 2 is an exploded view of a preferred embodiment of the invention.

FIG. 3 is a partial exploded view of a preferred embodiment of the creation.

FIG. 4 is a cross-sectional view of a preferred embodiment of the invention.

FIG. 5 is a cross-sectional exploded view of a preferred embodiment of the invention.

FIG. 6 is a use state diagram of a preferred embodiment of the invention.

FIG. 7 is another use state diagram of a preferred embodiment of the invention.

The following examples only illustrate the possible implementation of this creation, but are not intended to limit the scope of protection of this creation, and will be described first.

Please refer to FIGS. 1 to 7 , which show a preferred embodiment of the present invention. The pneumatic tool of the present invention includes a first member 1 , a second member 2 and a pivot unit 3 .

The first member 1 includes a first air passage 11 and a second air passage 12; the second member 2 includes an air chamber 21 for accommodating a rotor 4; the pivot unit 3 defines an axial direction, The pivoting unit 3 is pivotally connected to the first member 1 and the second member 2 so that the second member 2 can swing relative to the first member 1 with the pivoting unit 3 as the axis. The pivoting unit 3 includes an The air flow channel 31, an exhaust flow channel 32, a first communication hole 33, a second communication hole 34 and at least a third communication hole 35, the intake flow channel 31, the first communication hole 33, The first air passage 11 communicates with the air chamber 21 , the exhaust air passage 32 , the second communication hole 34 , the at least one third communication hole 35 , the second air passage 12 and the air chamber 21 interconnected. Thereby, the first member 1 and the second member 2 are pivotally connected through the pivoting unit 3 , and the air passages 31 and the exhaust passages 32 on the pivoting unit 3 are used to simplify the air passage and provide for swinging In the process to achieve smooth intake and exhaust.

The first member 1 further includes a first body 13 and two pivot ears 14 , the two pivot ears 14 extend from the first body 13 along the assembly direction 9 , and the two pivot ears 14 are perpendicular to the assembly direction 9 The second member 2 further includes a second body 22 and a plug portion 23, and the plug portion 23 extends from the second body 22 along the assembly direction 9. The plug portion 23 is plugged into the plug space 15 ; the second air passage 12 extends along the first body 13 to one of the pivot ears 14 . The second air passage 12 extends along the assembly direction 9 , the first member 1 further includes an outer opening 16 , and the outer opening 16 penetrates through the first member 1 opposite to the two pivot ears 14 An outer side is connected to the second air passage 12 . Preferably, the opening of the outer opening 16 is opened along the assembly direction 9 and corresponds to the second air passage 12 ; this facilitates rapid drilling of the second air passage 12 and simplifies the exhaust air passage.

Each of the pivot ears 14 defines a first pivot hole 17 , wherein a first annular groove 18 is recessed in the hole wall of the first pivot hole 17 of one of the pivot ears 14 , and the plug-in portion 23 includes a second pivot connection arranged through Hole 24 and a second annular recess A groove 25, the pivot unit 3 passes through the first pivot hole 17 of each pivot ear 14 and the second pivot hole 24 of the plug portion 23, the second annular groove 25 is recessed in the first pivot hole 24 The hole walls of the two pivot holes 24, the first annular groove 18 and the second annular groove 25 respectively extend around the axial direction, and the first annular groove 18 surrounds the pivot unit 3 in the same way as the first annular groove The second annular groove 25 surrounds the pivot unit 3 , the first annular groove 18 communicates with the second air passage 12 and each of the third communication holes 35 , and the second annular groove 25 communicates with the second communication hole 34 . Preferably, in the axial direction, the aperture size of each third communication hole 35 is smaller than the axial size of the first annular groove 18 , and the aperture size of the second communication hole 34 is smaller than the axis of the second annular groove 25 . In addition, the plug portion 23 further includes a ring groove 26, the hole wall of the second pivot hole 24 is recessed with the ring groove 26, the ring groove 26 extends around the axial direction, and the ring groove 26 surrounds The surrounding manner of the pivoting unit 3 is that the second annular groove 25 surrounds the pivoting unit 3 , and the annular groove 26 communicates with the first communication hole 33 . Preferably, in the axial direction, the axial dimension of the annular groove 26 is larger than the diameter of the first communication hole 33 and the diameter of the first communication hole 33 . The structural strength of the pivoting unit 3 can be maintained, and the ring groove 26 , the first ring groove 18 and the second ring groove 25 can be machined with large dimensions, thereby reducing the first communication hole 33 , The machining accuracy of the second communication hole 34 and each of the third communication holes 35 is such that when the second member 2 swings at any angle, the first communication hole 33 remains corresponding to the annular groove 26, and the second communication hole 33 remains corresponding to the annular groove 26. The communication holes 34 are all kept corresponding to the second annular groove 25 , and the third communication holes 35 are kept corresponding to the first annular groove 18 , so that the gas can smoothly flow from the first annular groove 18 to the second communication groove 18 . The air passage 12 , from the air chamber 21 through the second annular groove 25 to the second communication hole 34 , and the gas flows smoothly from the first communication hole 33 to the air chamber 21 through the annular groove 26 .

The intake runner 31 and the exhaust runner 32 respectively extend along the axial direction. The pivot unit 3 further includes a partition 36 , and the partition 36 is disposed between the intake runner 31 and the exhaust runner 31 . Between the runners 32, the partition 36 respectively closes one end of the intake runner 31 and one end of the exhaust runner 32; the pivot unit 3 is provided with an opening 37 along the axial direction, the The opening 37 communicates with the intake runner 31, and the opening direction of the opening 37 is equal to In the axial direction, the pivoting unit 3 further includes a closure member 38 , which facilitates rapid drilling and can be removed to quickly clean the exhaust runner 32 and the intake runner 31 , simplifying the intake and exhaust runners 31 , 32 , and prevent the intake runner 31 and the exhaust runner 32 from interfering with each other.

The second member 2 includes a first hole 27 and a second hole 28 , the first hole 27 and the second hole 28 respectively extend along the assembly direction 9 , and the first hole 27 communicates with the first communication hole 33 , the second hole 28 communicates with the second communication hole 34 . Specifically, the second member 2 further includes a cylinder 5 and a rear end cover unit 6 , the cylinder 5 includes the air chamber 21 , and the rear end cover unit 6 is disposed at one end of the cylinder 5 along the assembly direction 9 The rear end cover unit 6 covers one end of the air chamber 21, the rear end cover unit 6 includes a first channel 61 and a second channel 62, the first channel 61 and the second channel 62 are The assembly direction 9 extends, the first channel 61 communicates with the first hole 27 , and the second channel 62 communicates with the second hole 28 . The second member 2 further includes a flow channel 29 , and the flow channel 29 laterally communicates between the second channel 62 and the second hole 28 . Preferably, the axial dimension of the second communication hole 34 is larger than the axial extension dimension of the second hole 28 , which can increase the rotational force of the rotor 4 and allow the gas to be discharged quickly and smoothly after entering the gas chamber 21 . air, simplifying the exhaust runner.

The pneumatic tool further includes an additional unit 7, the additional unit 7 is detachably assembled on the first member 1, the additional unit 7 includes a guide channel 71, the first member 1 includes an outer through hole 19, the The first air passage 11 extends along the assembly direction 9 , the outer through hole 19 is opened on the surface of the first member 1 along the transverse direction of the assembly direction 9 and communicates with the first air passage 11 . The pivot unit 3 further includes a fourth communication hole 39, the fourth communication hole 39 communicates with the intake flow channel 31 and the guide channel 71, so that the gas can be laterally guided by the guide channel 71 to flow into the intake channel 71. The air flow channel 31 does not need to be additionally plugged with an opening of the air intake flow channel 31 after the drilling process. The first member 1 , the second member 2 and the pivoting unit 3 constitute a main member that can pivot relative to each other, and the additional unit 7 is detachably assembled with the first member 1 . Obviously, the One less guide channel 71 is constructed on the outer guide channel 71 outside the main component to guide the airflow laterally out of the main component and then back to the main component. The overall structure is simple.

The additional unit 7 includes a cover, which covers the fourth communication hole 39 and the outer through hole 19 and is positioned on the first member 1 , the cover and the first member 1 define the guide Channel 71 ; wherein, the cover is located at one of the pivot ears 14 , and the first annular groove 18 is located at the other of the pivot ears 14 .

The pivoting unit 3 includes a communication shaft 30 and a plurality of leak-proof parts 8 , and the plurality of leak-proof parts 8 are sleeved on the communication shaft 30 at intervals.

One end of the communication shaft 30 includes the intake flow channel 31 , the first communication hole 33 and the fourth communication hole 39 , and the other opposite end of the communication shaft 30 includes the exhaust flow channel 32 , the first communication hole 39 , and the The two communication holes 34 and the plurality of the third communication holes 35 allow the gas to be discharged from the exhaust flow channel 32 in multiple directions during the swing, so as to achieve the effect of rapid exhaust.

1: The first component

13: The first subject

14: pivot ear

2: Second component

22: Second subject

23: plug-in part

7: Additional Units

Claims (10)

A pneumatic tool, comprising: a first member including a first air passage and a second air passage; a second member including an air chamber for accommodating a rotor; and a pivot unit defining a In the axial direction, the first member and the second member are pivotally connected so that the second member can swing relative to the first member with the pivoting unit as the axis, including an intake runner, an exhaust runner, a first a communication hole, a second communication hole and at least one third communication hole, the intake flow channel, the first communication hole, the first ventilation flow channel and the air chamber are communicated with each other, the exhaust flow channel, The second communication hole, the at least one third communication hole, the second air passage and the air chamber communicate with each other. The pneumatic tool as claimed in claim 1, wherein the first member further comprises a first body and two pivot ears, the two pivot ears extend from the first body along a connecting direction, and the two pivot ears are perpendicular to the The assembly direction is arranged at intervals to define a plug space; the second component further includes a second body and a plug part, the plug part extends from the second body along the assembly direction, and the plug part is inserted into the insertion space; the second air passage extends along the first main body to one of the pivot ears. The pneumatic tool according to claim 2, wherein the second air passage extends along the assembly direction, the first member further comprises an outer opening, the outer opening penetrates through the first member and the two An opposite outer side surface of the pivot ear is communicated with the second air passage. The pneumatic tool of claim 2, wherein a first pivot hole is formed through each of the pivot ears, a first annular groove is recessed in the hole wall of the first pivot hole of one of the pivot ears, and the insertion portion includes a through hole. a second pivot hole and a second annular groove, the pivoting unit passes through the first pivot hole of each of the pivot ears and the second pivot hole of the plug portion, the second annular groove recessed in the hole wall of the second pivot hole, the first annular groove The second annular groove extends around the axial direction respectively, the first annular groove communicates with the second air passage and each of the third communication holes, and the second annular groove communicates with the second communication hole. The pneumatic tool of claim 4, wherein in the axial direction, the diameter of each third communication hole is smaller than the axial dimension of the annular groove, and the diameter of the second communication hole is smaller than that of the second annular groove the axial dimension. The pneumatic tool as claimed in claim 1, wherein the intake runner and the exhaust runner respectively extend along the axial direction, and the pivoting unit further comprises a partition, and the partition is arranged on the intake flow Between the passage and the exhaust passage, the compartment part respectively closes an end of the intake passage and an end of the exhaust passage. The pneumatic tool as claimed in claim 2, wherein each of the pivot ears defines a first pivot hole, the insertion portion includes a second pivot hole and a ring groove, and the pivot unit passes through each of the pivot holes. The first pivot hole of the pivot ear and the second pivot hole of the plug portion, the hole wall of the second pivot hole is recessed with the annular groove, the annular groove extends around the axial direction, the annular groove communicate with the first communication hole. The pneumatic tool as claimed in claim 1, wherein the second member comprises a first hole and a second hole, the first hole and the second hole respectively extend along a connecting direction, and the first hole communicates with the first hole A communication hole, the second hole communicates with the second communication hole. The pneumatic tool as claimed in claim 8, wherein the second member further comprises a cylinder and a rear end cover unit, the cylinder includes the air chamber, and the rear end cover unit is disposed at an end of the cylinder along the assembly direction , the rear end cover unit covers one end of the air chamber, the rear end cover unit includes a first channel and a second channel, the first channel and the second channel respectively extend along the assembly direction, the first channel A channel communicates with the first channel, and the second channel communicates with the second channel. The pneumatic tool according to claim 5, wherein the second air passage extends along the assembly direction, the first member further comprises an outer opening, the outer opening penetrates through the first member and is provided with the two pivot An opposite outer side of the ear is connected to the second air passage; the opening of the outer opening is open along the assembly direction and corresponds to the second air passage; the intake air passage and the exhaust air passage are respectively along the Axially extending, the pivoting unit further includes a partition, the partition is arranged between the intake runner and the exhaust runner, the partition respectively closes one end of the intake runner and the An end of the exhaust runner; the pivoting unit is provided with an opening along the axial direction, the opening communicates with the intake runner, the opening direction of the opening is equal to the axial direction, and the pivoting unit is another It includes a closure; the hole wall of the second pivot hole is recessed with a ring groove, the ring groove extends around the axial direction, and the ring groove communicates with the first communication hole; the second member includes a first hole and A second channel, the first channel and the second channel respectively extend along the assembly direction, the first channel communicates with the first communication hole, and the second channel communicates with the second communication hole; in the axial direction, The axial dimension of the ring groove is larger than the aperture size of the first communication hole and the aperture size of the first communication hole; the aperture size of the second communication hole is larger than the aperture size of the second hole; the second member It also includes a cylinder and a rear end cover unit, the cylinder includes the air chamber, the rear end cover unit is arranged on an end of the cylinder along the assembly direction, and the rear end cover unit covers an end of the air chamber, The rear end cover unit includes a first channel and a second channel, the first channel and the second channel respectively extend along the assembly direction, the first channel communicates with the first hole, and the second channel communicates with the first channel Two holes; the second member further includes a flow channel, the flow channel is laterally connected between the second channel and the second hole; the pneumatic tool further includes an additional unit, the additional unit is detachably assembled in the first channel A component, the additional unit includes a guide channel, the first component includes an outer through hole, the first through-flow channel extends along the assembly direction, the outer through hole is opened in the first through hole along the assembly direction. A surface of a member communicates with the first air passage, the pivot unit further includes a fourth communication hole, the fourth communication hole communicates with the intake air passage and the guide passage; the pivot unit includes a communication shaft And a plurality of leak-proof parts, the plurality of leak-proof parts are sleeved on the communication shaft at intervals, and one end of the communication shaft includes the The intake flow channel, the first communication hole and the fourth communication hole, and the other opposite end of the communication shaft includes the exhaust flow channel, the second communication hole and a plurality of the third communication holes.

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