TWM622002U - Foldable pneumatic tool - Google Patents

Abstract

This creation is about a bendable pneumatic tool, including: a main body and a bending structure. The body includes a driving head and a holding part; the bending structure includes a first pivoting part, a second pivoting part and a pivot, the first pivoting part is connected to the holding part, and the first pivoting part is connected to the holding part; Two pivoting parts are connected to the driving head, the pivot shaft passes through and connects the first pivoting part and the second pivoting part, and the first pivoting part and the second pivoting part pass through the pivot shaft The directions are butted against each other to form at least one communication space together.

Description

Bendable Air Tools

This work is related to pneumatic tools, especially a bendable pneumatic tool.

Pneumatic tools are one of the common hand tools in processing plants. Their power source comes from high-pressure air, so they can be safely used in various harsh environments such as flammable, dusty, and humid. Loved by users in the processing industry. Examples of types of pneumatic tools include but are not limited to pneumatic wrenches, pneumatic grinding machines, pneumatic polishing machines, pneumatic waxing machines, pneumatic hammers, pneumatic drills, etc., such as Taiwan patents D209001, I696526, I692392, I662206 and other pneumatic tools kind.

However, the body structure of the above-mentioned pneumatic tool is too strong for the structure and loses flexibility, which leads to the situation that it is difficult to find the construction position and angle in many practical processing environments. Therefore, it is necessary to provide a novel and progressive bendable pneumatic tool to solve the above problems.

The main purpose of this creation is to provide a bendable pneumatic tool, which can allow the drive head to swing and bend relative to the grip portion at will, so that the user can freely adjust to a better angle for operation, so as to greatly improve the practicability and convenience .

In order to achieve the above purpose, the present invention provides a bendable pneumatic tool, including: a main body and a bending structure. The body includes a driving head and a holding part, the driving head includes at least one driving air channel, the holding part includes an air inlet; the bending structure includes a first pivoting part and a second pivoting part and a pivot, the first pivot part is connected to the holding part, the second pivot part is connected to the driving head, the pivot shaft passes through and connects the first pivot part and the second pivot part, Then, the driving head and the holding portion rotate relative to the pivot shaft; wherein, the first pivot portion is provided with at least one first air guide, and the second pivot portion is provided with at least one second air passage. an air guide, the first pivot part and the second pivot part are butted with each other along the passing direction of the pivot to form at least one communication space together, and the at least one first air guide is communicated with the at least one communication space and the Between the intake passages, the at least one second air passage communicates between the at least one driving air passage and the at least one communication space.

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 FIG. 1 to FIG. 5 , which show a first embodiment of the present invention. The bendable pneumatic tool of the present invention includes a main body 1 and a bending structure 2 .

Specifically, the body 1 includes a driving head 11 and a holding portion 14 . The driving head 11 includes at least one driving air passage 12 , and the holding portion 14 includes an air inlet passage 15 . The bending structure 2 includes a first pivot portion 3 , a second pivot portion 4 and a pivot shaft 5 , the first pivot portion 3 is connected to the holding portion 14 , and the second pivot portion 4 is connected In the driving head 11 , the pivot shaft 5 passes through and connects the first pivoting portion 3 and the second pivoting portion 4 , and then the driving head 11 and the gripping portion 14 rotate relative to the pivot shaft 5 as an axis , so that the user can bend and adjust the angular position of the driving head 11 as required, so as to facilitate the rotary processing operation.

More specifically, at least one first air guide 31 is formed through the first pivoting portion 3 , at least one second air guide 41 is formed through the second pivoting portion 4 , and the first pivoting portion 3 is connected to the The second pivoting portions 4 are butted against each other along the passing direction of the pivot shaft 5 to form at least one communication space 6 together. The at least one first air passage 31 is communicated between the at least one communication space 6 and the air inlet 15 . During the time, the at least one second air passage 41 communicates between the at least one driving air passage 12 and the at least one communication space 6, regardless of the relative rotation angle of the first pivoting part 3 and the second pivoting part 4, The at least one communication space 6 can maintain communication with the at least one first air passage 31 and the at least one second air passage 41 .

In the first embodiment, the number of the at least one first air guide 31 , the number of the at least one communication space 6 and the number of the at least one second air guide 41 are one, respectively, along the direction of the pivot shaft 5 passing through. , the first pivoting portion 3 is recessed with a first receiving portion 32, the second pivoting portion 4 is recessed with a second receiving portion 42, and the first receiving portion 32 and the second receiving portion 42 are connected to each other to form the In the communication space 6 , the first air passage 31 communicates with the first container 32 , and the second air passage 41 communicates with the second container 42 .

It is worth mentioning that the pivot shaft 5 passes through the communication space 6, but the pivot shaft 5 is not connected to the communication space 6. In other words, the pivot shaft 5 is only used for rotation and connection, and gas will not enter the pivot shaft. The inside of the shaft 5 does not need to be additionally finely processed for the pivot shaft 5, so that the processing steps can be greatly simplified, the processing difficulty and the cost can be reduced.

The first pivoting portion 3 and the second pivoting portion 4 are rotatably embedded with each other, and the embedded joint structure can effectively improve the joint tightness and rotational stability of the two. Preferably, one of the first pivoting portion 3 and the second pivoting portion 4 is provided with a pin 43, and the other is provided with a socket 36, and the pin 43 is rotatably inserted into the socket. 36. The pivot shaft 5 protrudes out of the post 43 and passes through the socket 36. The communication space 6 surrounds the post 43. The combination of the post 43 and the socket 36 can further improve the joint tightness. and rotational stability.

In the first embodiment, a first leakage preventing member 91 is sandwiched between the first pivoting portion 3 and the second pivoting portion 4 where the first pivoting portion 3 is embedded with each other, and a second leakage preventing member 92 is sandwiched between the insert post. 43 and the socket 36 to more reliably prevent gas leakage and increase friction to avoid any relative rotation. In addition, the opening direction of the first air guide 31 opened in one of the inlet ports 311 of the first container 32 is equal to the opening direction of the insertion hole 36 , and the second air guide 41 is opened in one of the second containers 42 . The opening direction of the discharge port 411 is perpendicular to the extending direction of the plug 43 to form a gas flow path that enters the communication space 6 in the axial direction and flows out of the communication space 6 laterally. The advantage is that the inlet port 311 can enter the communication space. After the gas in 6 can penetrate the bottom wall of the second container 42, it can be quickly split into two directions and flow in the annular communication space 6 and then enter the discharge port 411, which can ensure the smoothness and speed of the gas flow.

Please further refer to the second embodiment of FIGS. 6 to 10 , the driving head 11A is further provided with an air chamber 13 for accommodating the driving mechanism, at least one driving air passage 12A, the number of at least one first air guiding passage 31A, and at least one communication space The number of 6A and the number of at least one second air passage 41A are respectively two, the driving air passage 12A, the first air passage 31A, the communication space 6A and the second air passage 41 communicate with each other to form a first air passage. A gas channel 81, the other driving air channel 12A, the other first air channel 31A, the other communication space 6A and the other second air channel 41A are connected to form a second gas channel 82, a The switching member 71 is movably disposed on the main body 1A, the switching member 71 is provided with a through channel 711 , and by controlling the switching member 71 , one of the first gas flow channel 81 and the second gas flow channel 82 passes through the through channel 711 conducts the air chamber 13 and the air inlet 15A, and the other does not communicate with the air chamber 13 and the air inlet 15A, and then controls the driving mechanism in the air chamber 13 to rotate forward or reverse.

In the second embodiment, the two first air guide passages 31A, the two communication spaces 6A, and the two second air guide passages 41A are respectively arranged symmetrically with the centerline of the grip portion 14A as the axis. In addition, the interior of the first pivoting portion 3A communicates with the air inlet 15A, the switching member 71 is rotatably embedded in the interior of the first pivoting portion 3A, and the switching member 71 is located between the air inlet 15A and the air inlet 15A. between the first air passages 31A.

Preferably, the switching member 71 is rotatably inserted into the first pivoting portion 3A, and an elastic member 76 springs against the inner wall of the first pivoting portion 3A and the switching member 71 . 76 is used to ensure that the switching element 71 is normally inserted against the first pivoting portion 3A without loosening.

More specifically, a control member 72 is rotatably sleeved on the first pivot portion 3A. The first pivot portion 3A is radially provided with a groove 33 communicating with the inside thereof, and a connecting member 73 penetrates through the first pivot portion 3A. The notch 33 is set to connect the control member 72 and the switch member 71 , so that the control member 72 and the switch member 71 are in the same rotational relationship and can rotate relative to the first pivot portion 3A.

More specifically, the switching member 71 is radially recessed with a receiving groove 712 , the opening of the receiving groove 712 faces the inner wall of the first pivoting portion 3A, and the inner wall of the first pivoting portion 3A is radially recessed. A first positioning slot 34 and a second positioning slot 35 are provided. The first positioning slot 34 and the second positioning slot 35 are arranged at intervals in the circumferential direction of the first pivot portion 3A, a positioning spring 74 and a positioning The ball 75 is accommodated in the accommodating groove 712 , and the positioning spring 74 normally urges the positioning ball 75 to move toward the inner wall of the first pivot portion 3 , and then operating the control member 72 to rotate can make the positioning ball 75 is selectively inserted into the first positioning groove 34 or the second positioning groove 35 to maintain the forward rotation or reverse rotation state.

In the second embodiment, the switching member 71 and the first pivoting portion 3A are coaxially disposed, with the axis of the first pivoting portion 3A as the center of the circle, the first positioning slot 34 and the second positioning slot 35 The included angle is 120 degrees. In addition, the extension of the through channel 711 is in the shape of a long arc, so as to ensure that the through channel 711 has a sufficient cross-sectional area to communicate with the first air guide channel 31A.

It can be understood that the related structures such as the switching member 71 and the control member 72 can also be applied in the first embodiment to perform the forward and reverse switching function, and details are not repeated here.

1,1A: body 11,11A: drive head 12,12A: Drive Airway 13: Air chamber 14, 14A: Grip 15,15A: Intake port 2: Bending structure 3,3A: The first pivot 31,31A: First Airway 311: Entrance 32: The first volume 33: Cut the ditch 34: The first positioning slot 35: Second positioning slot 36: jack 4: Second pivot part 41,41A: Second Airway 411: discharge port 42: Second Volume 43: Post 5: Pivot 6,6A: Connected spaces 71: Toggles 711: Through Road 712: Container 72: Controls 73: Connector 74: Positioning spring 75: Orientation Beads 76: Elastic 81: The first gas flow channel 82: Second gas flow channel 91: The first leak stop 92: Second leak stop

FIG. 1 is a perspective view of a first embodiment of a creation. FIG. 2 is a cross-sectional view of FIG. 1 . FIG. 3 is an exploded view of FIG. 1 . FIG. 4 is a perspective view of the head and the second pivoting part according to the first embodiment of the invention. FIG. 5 is a perspective view of a grip portion and a first pivot portion according to a first embodiment of the invention. FIG. 6 is a perspective view of a second embodiment of the invention. FIG. 7 is an exploded view of FIG. 6 . FIG. 8 is a cross-sectional view of a connected state of FIG. 6 . FIG. 9 is a cross-sectional view of another connected state of FIG. 6 . FIG. 10 is a cross-sectional view of the first pivot portion, the control member and the switching member of FIG. 6 .

1: Ontology

11: Drive head

14: Grip

2: Bending structure

3: The first pivot part

4: Second pivot part

Claims (10)

A bendable pneumatic tool, comprising: a body, comprising a driving head and a holding portion, the driving head comprising at least one driving air passage, and the holding portion comprising an air inlet passage; and A bending structure includes a first pivot portion, a second pivot portion and a pivot, the first pivot portion is connected to the holding portion, the second pivot portion is connected to the driving head, the A pivot shaft is penetrated and connected to the first pivot portion and the second pivot portion, and the driving head and the holding portion rotate relative to the pivot shaft as an axis; Wherein, the first pivot portion is provided with at least one first air guide passage, the second pivot portion is provided with at least one second air guide passage, the first pivot portion and the second pivot portion along the pivot The passing directions of the shafts are butted against each other to form at least one communication space together, the at least one first air guide is connected between the at least one communication space and the air inlet, and the at least one second air guide is connected with the at least one between the driving air passage and the at least one communication space. The bendable pneumatic tool as claimed in claim 1, wherein the number of the at least one first air guide, the number of the at least one communication space, and the number of the at least one second air guide are respectively one, along the pivot axis In the threading direction, the first pivot portion is recessed with a first container portion, the second pivot portion is recessed with a second container portion, and the first container portion and the second container portion are mutually butted to form the communication space , the first air guide is connected to the first container, and the second air guide is connected to the second container. The bendable pneumatic tool according to claim 1, wherein the driving head is further provided with an air chamber for accommodating the driving mechanism, the at least one driving air passage, the number of the at least one first air guiding passage, and the at least one communication space The number and the number of the at least one second air passage are respectively two, one of the driving air passage, one of the first air passage, one of the communication space and one of the second air passage communicate with each other to form a first gas flow passage, The other driving air channel, the other first air channel, the other communication space and the other second air channel are connected to form a second gas flow channel, a switching member is movably arranged on the main body, the A through passage is formed through the switching member, and by controlling the switching member, one of the first gas flow passage and the second gas flow passage conducts the air chamber and the air inlet passage through the through passage, and the other does not communicate with the air inlet passage. air chamber and the air inlet. The bendable pneumatic tool as claimed in claim 3, wherein the inside of the first pivoting portion communicates with the air inlet, the switching member is rotatably embedded in the inside of the first pivoting portion, and the switching A piece is interposed between the intake passage and the two first air passages. The bendable pneumatic tool as claimed in claim 4, wherein a control member is rotatably sleeved on the first pivot portion, and the first pivot portion is radially provided with a groove communicating with the inside thereof. and a connecting piece penetrates the notch to connect the control piece and the switching piece, and the control piece and the switching piece are in the same rotational relationship and can rotate relative to the first pivoting part. The bendable pneumatic tool as claimed in claim 4, wherein the switching member is radially recessed with a accommodating groove, the opening of the accommodating groove faces the inner wall of the first pivoting portion, and the opening of the accommodating groove faces the inner wall of the first pivoting portion. The inner wall is radially recessed with a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove are arranged at intervals in the circumferential direction of the first pivot portion, a positioning spring and a positioning ball accommodated in the accommodating groove, the positioning spring normally urges the positioning bead to move in the direction of the inner wall of the first pivot portion, and then operates the control member to rotate so that the positioning bead can be selectively embedded in the first pivoting portion the positioning groove or the second positioning groove. The bendable pneumatic tool as claimed in claim 5, wherein the switching member is radially recessed with a accommodating groove, the opening of the accommodating groove faces the inner wall of the first pivoting portion, and the opening of the accommodating groove faces the inner wall of the first pivoting portion. The inner wall is radially recessed with a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove are arranged at intervals in the circumferential direction of the first pivot portion, a positioning spring and a positioning ball accommodated in the accommodating groove, the positioning spring normally urges the positioning bead to move in the direction of the inner wall of the first pivot portion, and then operates the control member to rotate so that the positioning bead can be selectively embedded in the first pivoting portion The positioning groove or the second positioning groove; two of the first air guide, two of the communication spaces and two of the second air guides are symmetrically arranged with the centerline of the holding part as the axis; the switch member is rotatably inserted Connected to the first pivoting portion, an elastic piece springs against the inner wall of the first pivoting portion and the switching piece, and the elastic piece is used to ensure that the switching piece is normally inserted against the first pivoting piece part; the switching element and the first pivot part are coaxially arranged, with the axis of the first pivot part as the center of the circle, the angle between the first positioning slot and the second positioning slot is 120 degrees; Extends in a long arc. The bendable pneumatic tool according to any one of claims 1 to 7, wherein the first pivoting portion and the second pivoting portion are rotatably engaged with each other, and the first pivoting portion and the first pivoting portion are rotatably engaged with each other. One of the two pivoting parts is provided with at least one insertion post, and the other is provided with at least one insertion hole, the at least one insertion post is rotatably inserted into the at least one insertion hole, and the pivot shaft protrudes out of the at least one insertion hole. The plug is inserted through the at least one insertion hole, and the at least one communication space surrounds the at least one plug. The bendable pneumatic tool according to any one of claims 1 to 7, wherein the pivot shaft passes through the at least one communication space, and the pivot shaft does not communicate with the at least one communication space. The bendable pneumatic tool as claimed in claim 2, wherein the first pivoting portion and the second pivoting portion are rotatably engaged with each other, and one of the first pivoting portion and the second pivoting portion One is provided with a post, the other is provided with a socket, and the post is rotatably plugged into the socket, the pivot protrudes out of the post and passes through the socket, and the communication space surrounds the socket a pin; the pivot shaft passes through the communication space, and the pivot shaft is not communicated with the communication space; a first leakage stopper is sandwiched between the first pivot part and the second pivot part where they are embedded with each other, a first Two leak-proof members are sandwiched between the post and the socket; the opening direction of the first air guide opened in an inlet of the first container is equal to the opening direction of the socket, and the second air guide The opening direction of a discharge port opened in the second container portion is perpendicular to the extending direction of the plug.

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