CN210819322U - Plastic shell strong-torque pneumatic impact wrench - Google Patents
Plastic shell strong-torque pneumatic impact wrench Download PDFInfo
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- CN210819322U CN210819322U CN201921857871.XU CN201921857871U CN210819322U CN 210819322 U CN210819322 U CN 210819322U CN 201921857871 U CN201921857871 U CN 201921857871U CN 210819322 U CN210819322 U CN 210819322U
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- impact wrench
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- pneumatic impact
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Abstract
The utility model discloses a plastic shell strong torque pneumatic impact wrench, which comprises a shell, wherein the shell is an integral structure formed by injection molding, a front cover and a rear cover are assembled on the shell, a trigger and an air inlet joint are also arranged on the shell, the trigger is matched with an opening and closing valve arranged in the shell, a cylinder is arranged in the shell, a front end plate and a rear end plate are assembled at two ends of the cylinder correspondingly, a front wear-resistant gasket is arranged between the front end plate and the cylinder, a rear wear-resistant gasket is arranged between the rear end plate and the cylinder, a rotor is arranged in the cylinder, a blade is arranged on the rotor, the front end of the rotor is connected with a hammering chamber, a pair of hammering blocks are arranged in the hammering chamber, and an impact bar; the rear cover is provided with a speed regulation knob which is provided with an air outlet. The advantages are that: reasonable structure, light weight, bidirectional rotation and long service life.
Description
Technical Field
The utility model belongs to the technical field of pneumatic tool makes and specifically relates to indicate a mould shell strong torsion pneumatic impact wrench.
Background
The hardware tool is a classification of tool industry, and mainly can be divided into a manual tool, an electric tool, a pneumatic tool and the like according to different power sources, wherein a pneumatic impact wrench is one of the pneumatic tools, and the pneumatic impact wrench takes compressed air as power to drive a striking rod to form circular reciprocating front-back and rotating motion after a rotor rotates.
At present, a part of pneumatic impact wrenches can only rotate in one direction and cannot meet the requirement of bidirectional rotation in the use process; in addition, the cylinder end cover of current pneumatic impact wrench adopts the injection molding more, leads to the instrument in-process wearing and tearing fast, and life is short, and the wearing and tearing of cylinder end cover can influence whole impact wrench's normal operating, consequently, current pneumatic impact wrench's structure needs further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide rational in infrastructure, light in weight can two-way rotation, long service life's a mould shell strong torsion pneumatic impact wrench.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
a plastic shell strong torque pneumatic impact wrench comprises a shell, wherein the shell is an integral structure formed by injection molding, a front cover and a rear cover are assembled on the shell, a trigger and an air inlet joint are also arranged on the shell, the trigger is matched with an opening and closing valve arranged in the shell, an air cylinder is arranged in the shell, a front end plate and a rear end plate are assembled at two ends of the air cylinder correspondingly, a front wear-resistant gasket is arranged between the front end plate and the air cylinder, a rear wear-resistant gasket is arranged between the rear end plate and the air cylinder, a rotor is arranged in the air cylinder, blades are arranged on the rotor, the front end of the rotor is connected with a hammering chamber, a pair of hammering blocks are arranged in the hammering chamber, and; the rear cover is provided with a speed regulation knob, the speed regulation knob is provided with an air outlet, and both sides of the air cylinder are provided with air inlet channels.
The optimized technical measures further comprise:
the speed regulation knob is embedded with a positioning spring and a steel ball, and the rear cover is provided with a groove matched with the steel ball.
The trigger is connected with an inner mandril, and the inner end of the inner mandril is abutted against the opening and closing valve.
An opening and closing valve spring is arranged between the opening and closing valve and the air inlet joint, and a framework oil seal and a lining ring are arranged between the opening and closing valve and the shell.
An oil-containing shaft sleeve is arranged between the impact rod and the front cover.
The speed regulation knob is convexly provided with a handle.
The utility model discloses a plastic shell strong torque force pneumatic impact wrench, it is rational in infrastructure, the casing is the overall structure that forms for moulding plastics, can lighten whole weight, this impact wrench strengthens the wearability through setting up preceding wear-resisting gasket and back wear-resisting gasket, can effectively reduce wearing and tearing, reduces the fault rate, improves impact wrench's life; the rear cover is provided with a speed regulation knob, and the steering and rotating speed are regulated by rotating the speed regulation knob. The utility model discloses a hammering is indoor to be provided with a pair of hammering piece that sets up on the contrary from top to bottom, adopts such structure can improve the torsion of impact wrench.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
fig. 3 is an exploded schematic view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 3, the structure of the present invention is schematically illustrated,
wherein the reference numerals are: the air inlet valve comprises a shell 1, a front cover 11, a rear cover 12, a groove 12a, a trigger 13, an inner ejector rod 13a, an air inlet joint 14, an opening and closing valve 2, an opening and closing valve spring 21, a framework oil seal 22, a lining ring 23, a cylinder 3, a front end plate 31, a front wear-resistant gasket 31a, a rear end plate 32, a rear wear-resistant gasket 32a, a rotor 4, a blade 41, a hammering chamber 5, a hammering block 51, an impact rod 6, an oil-containing shaft sleeve 61, a speed regulation knob 7, an air outlet 7a, a positioning spring 71, a steel ball 72 and a handle 73.
As shown in figures 1 to 3 of the drawings,
a plastic shell strong torque pneumatic impact wrench comprises a shell 1, wherein the shell 1 is of an integral structure formed by injection molding, a front cover 11 and a rear cover 12 are assembled on the shell 1, a trigger 13 and an air inlet joint 14 are also arranged on the shell 1, the trigger 13 is matched with an opening and closing valve 2 arranged in the shell 1, a cylinder 3 is arranged in the shell 1, a front end plate 31 and a rear end plate 32 are correspondingly assembled at two ends of the cylinder 3, a front wear-resistant gasket 31a is arranged between the front end plate 31 and the cylinder 3, a rear wear-resistant gasket 32a is arranged between the rear end plate 32 and the cylinder 3, a rotor 4 is arranged in the cylinder 3, a blade 41 is arranged on the rotor 4, the front end of the rotor 4 is connected with a hammering chamber 5, a pair of hammering blocks 51 are arranged in the hammering chamber 5, and an impact rod 6 is assembled; the rear cover 12 is provided with a speed regulation knob 7, the speed regulation knob 7 is provided with an air outlet 7a, and two sides of the air cylinder 3 are provided with air inlet channels.
The speed regulating knob 7 is rotated to regulate the position of the air outlet 7a, so that the air outlet and an air inlet channel on one side of the air cylinder 3 form a passage to realize the regulation of the forward rotation or the reverse rotation of the rotor 4; in the process of rotating the speed regulating knob 7, the opening degree between the air outlet 7a and the air inlet channel is changed continuously, so that the speed regulation is realized.
In the embodiment, the speed regulation knob 7 is embedded with a positioning spring 71 and a steel ball 72, and the rear cover 12 is provided with a groove 12a matched with the steel ball 72.
The positioning spring 71 and the steel ball 72 are arranged, so that the speed gear can be adjusted more accurately, the hand feeling is better, and when one gear is adjusted in place, the steel ball 72 sinks into the corresponding groove 12a, and a 'click' sound is given out.
In the embodiment, an inner stem 13a is connected to the trigger 13, and the inner end of the inner stem 13a abuts against the opening/closing valve 2.
In the embodiment, an opening and closing valve spring 21 is provided between the opening and closing valve 2 and the intake joint 14, and a skeleton oil seal 22 and a gasket 23 are provided between the opening and closing valve 2 and the casing 1.
In the embodiment, an oil-containing shaft sleeve 61 is arranged between the impact rod 6 and the front cover 11. The oil-containing shaft sleeve 61 is arranged, so that friction can be reduced, and the wear resistance can be improved.
In the embodiment, the speed knob 7 is provided with a handle 73 in a protruding manner. The handle 73 is arranged to facilitate the application of force and the rotation of the speed control knob 7.
The working principle is as follows:
compressed air is connected from the air inlet joint 14, the trigger 13 is pressed, the inner ejector rod 13a of the trigger 13 pushes the on-off valve 2 inwards, so that the on-off valve 2 is opened, the compressed air enters the speed regulation knob 7 through the on-off valve 2, enters the air cylinder 3 through the air outlet 7a of the speed regulation knob 7 and the air inlet channel of the air cylinder 3, the rotor 4 is pushed to rotate, and the rotor 4 drives the hammering chamber 5, the hammering block 51 and the impact rod 6 to form an impact mechanism to work. The utility model discloses a hammering is provided with a pair of hammering piece 51 in the room 5, adopts such structure can improve the torsion of impact wrench.
The position of the air outlet hole 7a can be adjusted by rotating the speed regulating knob 7, so that the forward rotation or the reverse rotation of the impact wrench can be adjusted; in addition, when the speed regulating knob 7 is rotated, the opening degree between the air outlet hole 7a and the air inlet passage on the air cylinder 3 is regulated, and the regulation of the rotating speed is realized.
The pneumatic impact wrench of the utility model is provided with the front wear-resistant gasket 31a and the rear wear-resistant gasket 32a at two ends of the cylinder 3 correspondingly, so as to improve the wear resistance, reduce the failure rate and prolong the service life of the impact wrench; the utility model discloses a speed governing knob 7 has both realized the regulation of turning to and has realized the regulation of rotational speed, rational in infrastructure, compact.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a mould strong torsion pneumatic impact wrench of shell, including casing (1), characterized by: the shell (1) is an integral structure formed by injection molding, a front cover (11) and a rear cover (12) are assembled on the shell (1), a trigger (13) and an air inlet joint (14) are also arranged on the shell (1), the trigger (13) is matched with an opening and closing valve (2) arranged in the shell (1), a cylinder (3) is arranged in the shell (1), a front end plate (31) and a rear end plate (32) are correspondingly assembled at two ends of the cylinder (3), a front wear-resistant gasket (31a) is arranged between the front end plate (31) and the cylinder (3), a rear wear-resistant gasket (32a) is arranged between the rear end plate (32) and the cylinder (3), a rotor (4) is arranged in the cylinder (3), blades (41) are arranged on the rotor (4), the front end of the rotor (4) is connected with a hammering chamber (5), a pair of hammering blocks (51) is arranged in the hammering chamber (5), and an impact rod (6) is assembled at the center of each hammering block (51); the rear cover (12) is provided with a speed regulation knob (7), the speed regulation knob (7) is provided with an air outlet hole (7a), and two sides of the air cylinder (3) are provided with air inlet channels.
2. The plastic case strong torque pneumatic impact wrench as claimed in claim 1, wherein: a positioning spring (71) and a steel ball (72) are embedded in the speed regulation knob (7), and a groove (12a) matched with the steel ball (72) is formed in the rear cover (12).
3. The plastic case strong torque pneumatic impact wrench as claimed in claim 2, wherein: the trigger (13) is connected with an inner ejector rod (13a), and the inner end of the inner ejector rod (13a) is abutted against the opening and closing valve (2).
4. The plastic case strong torque pneumatic impact wrench as claimed in claim 3, wherein: an opening and closing valve spring (21) is arranged between the opening and closing valve (2) and the air inlet joint (14), and a framework oil seal (22) and a lining ring (23) are arranged between the opening and closing valve (2) and the shell (1).
5. The plastic case strong torque pneumatic impact wrench as claimed in claim 4, wherein: an oil-containing shaft sleeve (61) is arranged between the impact rod (6) and the front cover (11).
6. The plastic case strong torque pneumatic impact wrench as claimed in claim 5, wherein: the speed regulation knob (7) is convexly provided with a handle (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921857871.XU CN210819322U (en) | 2019-10-31 | 2019-10-31 | Plastic shell strong-torque pneumatic impact wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921857871.XU CN210819322U (en) | 2019-10-31 | 2019-10-31 | Plastic shell strong-torque pneumatic impact wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210819322U true CN210819322U (en) | 2020-06-23 |
Family
ID=71275524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921857871.XU Active CN210819322U (en) | 2019-10-31 | 2019-10-31 | Plastic shell strong-torque pneumatic impact wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210819322U (en) |
-
2019
- 2019-10-31 CN CN201921857871.XU patent/CN210819322U/en active Active
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