TWM518145U - Pneumatic tool capable of changing direction and adjusting speed with single hand - Google Patents

Description

One-hand reversing and speed control pneumatic tools

The present invention relates to a pneumatic tool driven by a gas, in particular to a one-handed reversing and speed-adjusting pneumatic tool for one-handed operation of a pneumatic tool.

The pneumatic tool is used to lock or loosen bolts, nuts, and the like, and the driving of the pressurized air can help the user to perform various disassembly and assembly operations with labor and speed. The pneumatic tool is internally provided with a cylinder block and a reversing valve communicating with the cylinder block. The front end of the pneumatic tool is provided with an output shaft driven by the cylinder group; the reversing valve is used to control the intake direction of the cylinder group to make the pneumatic The output shaft of the front end of the tool can be rotated clockwise or counterclockwise to perform the locking or loosening action. The early pneumatic tools set the adjustment control of the operation reversal to the rear of the pneumatic tool, so it has to be operated with two hands. The total length of pneumatic tools is longer;

A pneumatic tool disclosed in the patent No. I396607 patent, which is provided with a switching handle for operating a reversing valve above the pressing button, effectively solving the problems of setting the adjustment control group at the rear end of the pneumatic tool, and succeeding. The ground allows the user to control the air intake of the pneumatic tool and change the steering of the pneumatic tool with only one hand operation; however, this type of pneumatic tool can control the intake and steering with one hand, but does not fine-tune the speed. In order to further improve the functionality of the pneumatic tools and achieve the goal of completely one-handed control, the existing pneumatic tools still have outstanding features in the control of the commutation structure, and there is room for improvement and reinforcement.

In order to solve the problem that the existing pneumatic tools do not have a fine-tuning speed mechanism, the present invention proposes a one-handed reversing and speed-adjusting pneumatic tool, in which a plurality of clamping grooves are arranged in the accommodating portion of the cylinder housing, and the reversing valve is controlled. The control member is provided with a corresponding clamping member, and the card slot and the clamping member are engaged with each other, so that the user can stably change the rotation speed and the steering, and the air intake and the shifting of the pneumatic tool can be controlled by one hand. The purpose of the turn.

The utility model solves the technical problem of the one-handed reversing and speed-adjusting pneumatic tool, comprising: a cylinder group comprising a cylinder housing, a cylinder, an adjustment control group and a rotor; the cylinder housing has a relative The first side and the second side of the second side include a receiving portion, a plurality of clamping slots and a holding portion, the receiving portion has an opposite open end and a closed end, and the plurality of clamping slots are located The open end of the accommodating portion is recessed on the outer peripheral surface of the accommodating portion, and the plurality of grooving grooves are laterally arranged along the extending direction of the first side and the second side of the cylinder housing, the holding The portion is connected to the accommodating portion and is located on the same side of the accommodating portion as the accommodating portion. The inside of the grip portion is provided with a portion connecting the inside of the accommodating portion and the outside of the cylinder housing. An intake passage; the cylinder is disposed inside the cylinder housing and has opposite ends, the cylinder includes a rotor chamber, a first intake port and a second intake port, and the rotor chamber is The first end of the cylinder extends toward the second end of the cylinder The first intake port and the second intake port are disposed on the same side of the cylinder and extend from the circumferential surface of the cylinder toward the rotor chamber, the first intake port and the second intake port respectively Connected to the rotor chamber; the adjustment control group includes a reversing valve, a control member and a clamping member, the reversing valve is rotatably inserted into the intake passage of the grip portion and has opposite two End, the reversing valve is provided with a passage penetrating to both ends of the reversing valve, one end of the reversing valve abutting against the cylinder, and the passage and the first intake passage are in communication with the intake passage, The control member is clamped to the reversing valve and is movably mounted to the cylinder housing along an arrangement direction of the plurality of clamping slots, the clamping member being mounted on the control member and subjected to an elastic force a card slot that is closest to the first side of the cylinder housing; a rotor that is mounted to the rotor chamber of the cylinder; and an output set that is coupled to the opening of the housing of the cylinder housing end.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the control member comprises a clamping member receiving slot and an elastic member, the clamping member receiving groove is disposed on the top surface of the control member, the elastic member The cartridge is received in the card pocket; the card member is received in the card pocket and is pushed by the elastic member.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the reversing valve comprises an air inlet seat having a semi-circular cross section and located at one end of the reversing valve, the reversing direction The valve abuts against the cylinder with an inlet seat that extends from the other end of the diverter valve to the intake seat.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the number of the plurality of card slots is set to three.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the reversing valve comprises a card portion, the card portion is located on a circumferential surface of the reversing valve; the control member comprises a clamping arm and a The bayonet has a convex shape, and the bayonet is recessed on the clamping arm corresponding to the card portion, and the bayonet of the control member is engaged with the card portion of the reversing valve.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the card portion is interposed between two recessed portions recessed on a circumferential surface of the reversing valve, and the card portion is formed between the two recesses The convex part.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the grip portion includes a clamping recess, the clamping recess being located at a joint of the grip portion and the receiving portion, the clamping recess a recess facing the open end of the receiving portion; the output set includes a hammer assembly housing, the hammer assembly housing being coupled to an open end of the housing of the cylinder housing, the hammer assembly The housing is provided with a clamping portion corresponding to the clamping recess and the control member, and the control member is movably mounted on the clamping recess and is clamped by the clamping recess with the clamping portion.

The one-handed reversing and speed-adjusting pneumatic tool, wherein the card member is spherical.

The improvement in the efficiency of the technical means of the creation is that the one-handed reversing and speed-adjusting pneumatic tool of the present invention can be engaged with each other through the plurality of clamping grooves of the cylinder housing and the adjustment control group. The card parts are positioned in different card slots without the condition that the card parts are inadvertently toggled to change the speed or change direction, so that the user can control the air intake of the air tool with only one hand operation. , shifting and steering, providing easy and stable experience with pneumatic tools.

In order to understand the technical features and practical functions of the present work in detail, and in accordance with the creative content, the following further describes the preferred embodiment as shown in the following figure:

As shown in FIG. 1 and FIG. 2, a first preferred embodiment of the one-handed reversing and speed-adjusting pneumatic tool of the present invention comprises: a cylinder group 10 and an output group 20; wherein the output group 20 is coupled to the Cylinder block 10.

As shown in FIG. 2, FIG. 3 and FIG. 4, the cylinder block 10 includes a cylinder housing 11, an intake control group 12, a cylinder 13, an adjustment control group 14, and a rotor 15; wherein the cylinder housing 11 has a first side and a second side, and includes a receiving portion 111, a plurality of clamping slots 112 and a holding portion 113. The inside of the receiving portion 111 forms an accommodating space and has opposite sides. An open end and a closed end, the plurality of clamping slots 112 are located at the open end of the receiving portion 111 and are recessed on the outer peripheral surface of the receiving portion 111. The plurality of clamping slots 112 are along the cylinder housing The first side and the second side of the 11 are arranged in a lateral direction. The holding portion 113 is connected to the receiving portion 111 and is located on the same side of the receiving portion 111 as the plurality of locking grooves 112. The holding portion 113 includes an air inlet channel 1131 and a clamping recess portion 1132. The air inlet channel 1131 is disposed in the interior of the holding portion 113. The air inlet channel 1131 communicates with the accommodating space inside the receiving portion 111. The clamping recess 1132 is located at the joint of the grip portion 113 and the receiving portion 111 with the outer portion of the cylinder housing 11 1132 toward the accommodating recess portion 111 of the open end;

In the preferred embodiment of the present invention, the number of the plurality of card slots 112 is set to three and further divided into a first card slot 112A, a second card slot 112B, and a fine adjustment card slot 112C. The fine adjustment card slot 112C is located between the first card slot 112A and the second card slot 112B. The first card slot 112A, the fine adjustment card slot 112C and the second card slot 112B are along the The extending direction of the opposite sides of the cylinder casing 11 is arranged laterally in sequence; in application, the number of the fine adjustment clamping slots 112C can be determined according to the classification of the air outlet, and the number of the fine adjustment slots 112C for the creation is No specific restrictions are imposed.

As shown in FIG. 2, FIG. 3 and FIG. 4, the intake control group 12 is used for controlling the intake air of the compressed gas. The intake control group 12 includes a trigger member 121, and the intake control group 12 is large. A part of the component is disposed in the air inlet channel 1131 of the holding portion 113. The triggering member 121 is disposed adjacent to the accommodating portion 111. The triggering member 121 faces the open end of the accommodating portion 111. In the preferred embodiment of the present invention, the actuator 121 is a button; since the air intake control group 12 is prior art, it will not be described again.

As shown in FIG. 2, FIG. 3 and FIG. 4, the cylinder 13 is disposed in the accommodating space of the cylinder housing 11 and has a first end and a second end. The cylinder 13 includes a rotor chamber 131. a first air chamber 132, a second air chamber 133, a plurality of first air inlets 134, a plurality of second air inlets 135, a first air inlet 136 and a second air inlet 137; The rotor chamber 131, the first air chamber 132 and the second air chamber 133 extend from the first end of the cylinder 13 toward the second end of the cylinder 13, the plurality of first air inlets 134 and the plurality The second air inlets 135 are disposed on the inner circumferential surface of the rotor chamber 131. The plurality of first air inlets 134 communicate with the rotor chamber 131 and the first air chamber 132. The plurality of second air inlets 135 communicating with the rotor chamber 131 and the second air chamber 133, so that the first air chamber 132 and the second air chamber 133 are respectively connected to the rotor chamber 131, the first air inlet 136 and the first Two intake passages 137 are provided on the same side of the cylinder 13, and the first intake passage 136 extends from the outer peripheral surface of the cylinder 13 to the first air chamber 132, and the second intake passage 137 is from the outer circumference of the cylinder 13 Face extension The second air chamber 133 is extended.

As shown in FIG. 2, FIG. 3 and FIG. 4, the adjustment control group 14 includes a reversing valve 141, a control member 142, an elastic member 143 and a clamping member 144. The reversing valve 141 has two ends and includes There is an air inlet seat 1411, a passage 1412 and a card portion 1413. The air inlet seat 1411 has a semicircular cross section and is located at one end of the reversing valve 141. The passage 1412 extends from the other end of the reversing valve 141. The inlet portion 1411 is located on the circumferential surface of the reversing valve 141. The reversing valve 141 is rotatably inserted into the intake passage 1131 of the grip portion 113. The reversing valve 141 is advanced. The air block 1411 abuts against the cylinder 13 , the passage 1412 is in communication with the intake passage 1131 , and the passage 1412 is selectively connectable to the first intake passage 136 or the second when the reversing valve 141 is rotated. The intake passage 137 is in communication, and even communicates with the first intake passage 136 and the second intake passage 137 at the same time; in the preferred embodiment of the present invention, the card portion 1413 is interposed between the reversing valve Between the two recesses of the concave surface of the 141, the card portion 1413 is a convex portion formed between the two recesses;

As shown in FIG. 2, FIG. 3 and FIG. 4, the control member 142 includes a clamping arm 1421, a bayonet 1422, and a card slot 1423. The latching arm 1421 is convex and disposed on the control unit. One side of the piece 142, the bayonet 1422 is recessed on the card portion 1413 of the reversing valve 141, and the card slot 1423 is disposed on the top surface of the control member 142. The control member is disposed on the top surface of the control member 142. The 142 is mounted on the cylinder housing 11 and is interposed between the accommodating portion 111 and the grip portion 113 to slide along the arrangement direction of the plurality of clamping slots 112. The clamping arm of the control member 142 1421 toward the reversing valve 141 and the bayonet 1422 of the control member 142 is engaged with the card portion 1413, the card member receiving slot 1423 is facing the cylinder 13; the elastic member 143 is a compression spring, the elastic member The 143 is placed in the card housing 1423. The card member 144 is spherical. The card member 144 is received in the card housing slot 1423 and is engaged by the elastic member 143. One of the card slots 112.

As shown in FIG. 2, FIG. 3 and FIG. 4, the circumferential surface of the rotor 15 is provided with a plurality of radial slots 151, and each slot 151 is provided with a blade 152, and the rotor 15 is mounted on the rotor of the cylinder 13. The chamber 131, since the structure of the rotor 15 is prior art, will not be described here.

As shown in FIG. 2, FIG. 3 and FIG. 4, the output group 20 is coupled to the cylinder block 10 and includes a hammer assembly housing 21 and a hammer assembly 22; wherein the output assembly 20 has a hammer assembly housing The gripping unit housing 21 is provided with a clamping portion 211 corresponding to the clamping recess 1132 of the grip portion 113 and the control member 142. The control unit 211 is coupled to the open end of the accommodating portion 111 of the cylinder housing 11 . The member 142 is movably mounted on the clamping recess 1132 and is clamped by the clamping recess 1132 and the clamping portion 211; the hammer assembly 22 is mounted inside the hammer assembly housing 21 due to The structure of the output assembly 20 and the hammer assembly 22 disposed inside the output group 20 is prior art and will not be described herein.

As shown in FIG. 2, FIG. 5 and FIG. 6, the control member 142 is located between the accommodating portion 111 and the grip portion 113 and above the trigger member 121 of the air intake control group 12, so that the user When the grip portion 113 of the cylinder housing 11 is held by the hand, the control member 142 can be used to slide the control member 142 with the index finger or the thumb, and the control member 142 slides along the arrangement direction of the plurality of clamping slots 112. The bayonet 1422 of the control member 142 is engaged with the card portion 1413 of the reversing valve 141. Therefore, when the control member 142 slides, the reversing valve 141 can be rotated by the locking arm 1421 of the control member 142. Further controlling the communication state between the passage 1412 of the reversing valve 141 and the first intake passage 136 and the second intake passage 137;

As shown in FIG. 5 and FIG. 6 , when the control member 142 is turned to one side of the cylinder housing 11 , the reversing valve 141 is rotated clockwise toward the grip portion 113 of the cylinder housing 11 . At this time, the clamping member 144 of the adjustment control group 14 is locked in the first clamping groove 112A, and the passage 1412 of the switching valve 141 is aligned with and communicates with the first air inlet 136 of the cylinder 13 by The compressed air input by the intake passage 1131 of the grip portion 113 passes through the passage 1412, the first intake passage 136, and then enters the first air chamber 132 of the cylinder 13 and finally passes through the first air chamber. 132 passes through the plurality of first intake ports 134 of the cylinder 13 and enters the rotor chamber 131 of the cylinder 13, and the compressed gas entering the rotor chamber 131 pushes the blades of the rotor 15 to face the rotor 15 toward the cylinder 13. Rotate counterclockwise.

As shown in FIG. 7 and FIG. 8 , when the clamping member 144 of the adjustment control group 14 is engaged in the second clamping groove 112B, the passage 1412 of the switching valve 141 and the second inlet port of the cylinder 13 137 is aligned and connected, and the compressed air input by the intake passage 1131 of the grip portion 113 passes through the passage 1412 and the second intake passage 137, and then enters the second air chamber 133 of the cylinder 13 . Finally, the second air chamber 133 passes through the plurality of second air inlets 135 of the cylinder 13 to enter the rotor chamber 131 of the cylinder 13, and the compressed gas entering the rotor chamber 131 pushes the blades of the rotor 15 to The rotor 15 rotates clockwise toward the cylinder 13.

As shown in FIG. 9 and FIG. 10, when the clamping member 144 of the adjustment control group 14 is engaged in the fine adjustment locking slot 112C, the passage 1412 of the reversing valve 141 and the first intake passage 136 of the cylinder 13 are shown. In communication with the second intake passage 137, since the passage 1412 of the reversing valve 141 does not completely align the second intake passage 137, the plurality of second intake ports 135 of the cylinder 13 enter the cylinder 13 The amount of compressed air in the rotor chamber 131 is reduced, so that the output of the rotor 15 in the clockwise direction with respect to the cylinder 13 is weakened, thereby achieving the purpose of adjusting the output force.

The one-handed reversing and speed-adjusting pneumatic tool of the present invention is disposed between the accommodating portion 111 of the cylinder housing 11 and the grip portion 113, and is convenient for the user to The thumb and the index finger operate the control member 142, and the plurality of clamping slots 112 provided through the cylinder housing 11 and the clamping member 144 of the adjustment control group 14 are engaged with each other, so that the clamping member 144 can be positioned at Different card slots 112 are prevented from being unintentionally triggered, allowing the user to freely and stably change the speed and steering; compared with the existing pneumatic tools, the creation can not only allow the user to operate with one hand Control pneumatic tools, which are more convenient and flexible in use.

10‧‧‧Cylinder group
11‧‧‧Cylinder housing
111‧‧‧ 容部
112‧‧‧ card slot
112A‧‧‧First card slot
112B‧‧‧Second card slot
112C‧‧‧ fine-tuning card slot
113‧‧‧ grips
1131‧‧‧Intake passage
1132‧‧‧Clamping recess
12‧‧‧Intake Control Group
121‧‧‧Touching parts
13‧‧‧ cylinder
131‧‧‧Rotor compartment
132‧‧‧First air chamber
133‧‧‧Second chamber
134‧‧‧first air inlet
135‧‧‧second air inlet
136‧‧‧First Inlet
137‧‧‧Second inlet
14‧‧‧Adjustment control group
141‧‧‧Reversing valve
1411‧‧‧Intake seat
1412‧‧‧ channel
1413‧‧‧Card Department
142‧‧‧Controls
1421‧‧‧Cartridge arm
1422‧‧‧ bayonet
1423‧‧‧Card parts
143‧‧‧Flexible parts
144‧‧‧Card parts
15‧‧‧Rotor
151‧‧‧ slots
152‧‧‧ blades
20‧‧‧Output group
21‧‧‧ Hammering component housing
211‧‧‧ gripping department
22‧‧‧ Hammering components

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view showing the appearance of a preferred embodiment of the present invention. Figure 2 is a cross-sectional view of the assembly of the preferred embodiment of the present invention. Figure 3 is an exploded view of the preferred embodiment of the present invention. Figure 4 is an exploded view of a portion of the preferred embodiment of the present invention. Figure 5 is a cross-sectional view showing the card of the preferred embodiment of the present invention being snapped into the first card slot. FIG. 6 is a schematic view showing the operation of the card member of the preferred embodiment of the present invention in the first card slot. Figure 7 is a cross-sectional view showing the card of the preferred embodiment of the present invention being snapped into the second card slot. FIG. 8 is a schematic view showing the operation of the card member of the preferred embodiment of the present invention being clamped to the second card slot. Figure 9 is a cross-sectional view showing the card of the preferred embodiment of the present invention being snapped into the fine adjustment card slot. FIG. 10 is a schematic view showing the operation of the card member of the preferred embodiment of the present invention being clamped to the fine adjustment card slot.

10‧‧‧Cylinder group

11‧‧‧Cylinder housing

111‧‧‧ 容部

112‧‧‧ card slot

112A‧‧‧First card slot

112B‧‧‧Second card slot

112C‧‧‧ fine-tuning card slot

113‧‧‧ grips

1132‧‧‧Clamping recess

12‧‧‧Intake Control Group

121‧‧‧Touching parts

13‧‧‧ cylinder

131‧‧‧Rotor compartment

132‧‧‧First air chamber

133‧‧‧Second chamber

134‧‧‧first air inlet

135‧‧‧second air inlet

136‧‧‧First Inlet

137‧‧‧Second inlet

14‧‧‧Adjustment control group

141‧‧‧Reversing valve

1411‧‧‧Intake seat

1412‧‧‧ channel

1413‧‧‧Card Department

142‧‧‧Controls

1421‧‧‧Cartridge arm

1422‧‧‧ bayonet

1423‧‧‧Card parts

143‧‧‧Flexible parts

144‧‧‧Card parts

Claims (8)

The utility model relates to a one-handed reversing and speed-adjusting pneumatic tool, comprising: a cylinder group comprising a cylinder housing, a cylinder, an adjustment control group and a rotor; the cylinder housing has a first side and a first side The second side includes a receiving portion, a plurality of clamping slots and a holding portion, the receiving portion has an opposite open end and a closed end, and the plurality of clamping slots are located at the open end of the receiving portion And recessed on the outer peripheral surface of the accommodating portion, the plurality of grooving grooves are laterally arranged along the extending direction of the first side and the second side of the cylinder housing, and the holding portion is connected to the accommodating portion And the plurality of card slots are located on the same side of the accommodating portion, and the inside of the grip portion is provided with an air inlet passage communicating with the inside of the accommodating portion and the outside of the cylinder housing; Provided in the interior of the cylinder housing and having opposite ends, the cylinder includes a rotor chamber, a first inlet, and a second inlet, the rotor chamber facing the first end of the cylinder a second end of the cylinder extending, the first inlet and the first An intake passage is disposed on the same side of the cylinder and extends from a circumferential surface of the cylinder toward the rotor chamber, the first intake passage and the second intake passage being respectively connected to the rotor chamber; the adjustment control The group includes a reversing valve, a control member and a clamping member. The reversing valve is rotatably inserted into the intake passage of the grip portion and has opposite ends. The reversing valve is provided to penetrate the a passage of the two ends of the reversing valve, the one end of the reversing valve abutting against the cylinder, the passage and the first intake passage are in communication with the intake passage, and the control member is clamped to the reversing valve and Mounted in the cylinder housing along the arrangement direction of the plurality of clamping slots, the clamping member is mounted on the control member and is locked by the elastic force to be closest to the cylinder housing a card slot on one side; a rotor mounted to the rotor chamber of the cylinder; and an output set coupled to the open end of the housing of the cylinder housing. The one-handed reversing and speed-adjusting pneumatic tool according to claim 1, wherein the control member comprises a clamping member receiving groove and an elastic member, and the clamping member receiving groove is disposed on the top surface of the control member. The elastic member is received in the card housing; the card member is received in the card housing and is pushed by the elastic member. The one-handed reversing and speed-adjusting pneumatic tool of claim 2, wherein the reversing valve comprises an intake seat having a semi-circular cross section and located at one end of the reversing valve The reversing valve abuts the cylinder with an air inlet seat, and the passage extends from the other end of the reversing valve to the air inlet. The one-handed reversing and speed-adjusting pneumatic tool according to claim 3, wherein the number of the plurality of card slots is set to three. The one-handed reversing and speed regulating pneumatic tool according to claim 4, wherein the reversing valve comprises a card portion, the card portion is located on a circumferential surface of the reversing valve; and the control member comprises a card The arm and the bayonet have a convex shape, and the bayonet is recessed on the latching arm corresponding to the card portion, and the bayonet of the control member is engaged with the card portion of the reversing valve. The one-handed reversing and speed-adjusting pneumatic tool according to claim 5, wherein the card portion is interposed between two recessed portions recessed on a circumferential surface of the reversing valve, and the card portion is two a convex portion formed between the recesses. The one-handed reversing and speed-adjusting pneumatic tool according to claim 6, wherein the grip portion includes a clamping recess, and the clamping recess is located at a joint of the grip portion and the receiving portion. a recess of the clamping recess facing the open end of the receiving portion; the output set includes a hammer assembly housing, the hammer assembly housing being coupled to an open end of the receiving portion of the cylinder housing, The hammering component housing is provided with a clamping portion corresponding to the clamping recess and the control member, and the control member is movably mounted on the clamping recess and is clamped by the clamping recess with the clamping portion. The one-handed reversing and speed-adjusting pneumatic tool according to claim 7, wherein the engaging member is spherical.